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Competitive binding of distinct molecules in the hydrogel interior can facilitate dynamic exchange between the hydrogel and the surrounding environment. The ability to control the rates of sequestration and release of these molecules would enhance the hydrogel's functionality and enable targeting of a specific task. Here, we report the design of a colloidal hydrogel with two distinct pore dimensions to achieve staged, diffusion-controlled scavenging and release dynamics of molecules undergoing competitive binding. The staged scavenging and release strategy was shown for CpG oligodeoxynucleotide (ODN) and human epidermal growth factor (hEGF), two molecules exhibiting different affinities to the quaternary ammonium groups of the hydrogel. Fast ODN scavenging from the ambient environment occurred via diffusion through submicrometer-size hydrogel pores, while delayed hEGF release from the hydrogel was governed by its diffusion through nanometer-size pores. The results of the experiments were in agreement with simulation results. The significance of staged ODN-hEGF exchange was highlighted by the dual anti-inflammation and tissue proliferation hydrogel performance.

Background: South Asian region contributes 59 % to the global mortality due to burns. However, we find a paucity of literature on the outcomes of burns from low- and middle-income countries (LMICs). South Asian Burn Registry (SABR) is a facility-based burns registry that collected data on in-patient burn care. This study assesses factors associated with mortality, length of hospital stay at the burns center, and functional status of burn patients., Methods: Prospective data was collected from two specialized public sector burn centers between September 2014 - January 2015 from Bangladesh and Pakistan. Multivariable logistic, linear, and ordinal logistic regression was conducted to assess factors associated with inpatient-mortality, length of hospital stay, and functional status at discharge, respectively., Results: Data on 883 patients was analyzed. Increased association with mortality was observed with administration of blood product (OR:3, 95 % CI:1.18-7.58) and nutritional support (OR:4.32, 95 % CI:1.55-12.02). Conversely, antibiotic regimens greater than 8 days was associated with decreased mortality (OR:0.1, 95 % CI:0.03-0.41). Associated increase in length of hospital stay was observed in patients with trauma associated with their burn injury, history of seizures (CE:47.93, 95 % CI 12.05-83.80), blood product (CE:22.09, 95 % CI:0.83-43.35) and oxygen administration (CE:23.7, 95 % CI:7.34-40.06). Patients who developed sepsis (OR:6.89, 95 % CI:1.92-24.73) and received blood products during hospitalization (OR:2.55, 95 % CI:1.38- 4.73) were more likely to have poor functional status at discharge., Conclusion: This study identified multiple factors associated with worse clinical outcomes for burn patients in South Asia. Understanding these parameters can guide targeted efforts to improve the process and quality of burn care in LMICs., Competing Interests: Declaration of Competing Interest The authors do not have any conflict of interest to declare., (Copyright © 2024 Elsevier Ltd and International Society of Burns Injuries. All rights reserved.)

Background: Craniopharyngiomas (CPs) are rare, low-grade tumors characterized by a range of debilitating symptoms. Most of the existing literature reports postoperative outcomes of the different treatment modalities of childhood CP. However, few studies have reported the impact of these different treatment methods on the quality of life (QoL) of survivors of childhood CP. Therefore, we aim to assess the correlation between different surgical modalities on the QoL of patients with childhood CP from a lower-middle-income country., Methods: Twenty-nine survivors who underwent treatment for CP were included in the study. The selected patients had either been managed with complete resection, debulking, or placement of an Ommaya reservoir. QoL was assessed by the pediatric quality of life (PedsQL) questionnaire. The effect of the different treatment modalities on the QoL was assessed., Results: Mean follow-up was 4.4 ± 2.19 years. The type of surgery was significantly related to the mean PedsQL scores for the total score as well as each of the individual domain scores ( P < 0.001). Complete resection of the tumor resulted in the lowest mean (standard deviation) PedsQL total score of 56.6 ± 7.12 compared to the Ommaya reservoir with biopsy (83.3 ± 5.69) and debulking (93.8 ± 3.37) ( P < 0.001)., Conclusion: There was a significant effect of the type of surgical treatment on the QoL of the survivors of childhood CP. It is important to consider the long-term outcomes in addition to immediate postoperative outcomes when deciding on a treatment strategy while managing children with CP., Competing Interests: There are no conflicts of interest., (Copyright: © 2024 Surgical Neurology International.)

The electric potential stimulation of biological structures in aqueous environments is well-known to be a result of the gating of voltage-gated ion channels. Such voltage-gated ion channels are ubiquitous in the membranes of a wide variety of cells and they play central roles in a wide variety of sensing mechanisms and neuronal functions in biological systems. Experimental studies of ion-channel gating are frequently conducted using path-clamp techniques by placing a cumbersome external electrode in the vicinity of the extracellular side of the ion channel. Recently, it has been demonstrated that laser-induced polarization of nanoscale quantum dots can produce voltage sufficient to gate voltage-gated ion channels. This study specifically focuses on a new method of gating voltage-gated ion channels using 2D structures made of materials exhibiting large naturally occurring spontaneous polarizations, thereby eliminating the need for an external electrode or an illuminating laser. The work presents the use of self-polarizing semiconductor flakes, namely, 2H-SiC, ZnO, and GaN, to produce electric potential that is sufficient to gate voltage-gated ion channels when existing in proximity to it.

Introduction: Pooling and comparing data from the existing global network of burn registers represents a powerful, yet untapped, opportunity to improve burn prevention and care. There have been no studies investigating whether registers are sufficiently similar to allow data comparisons. It is also not known what differences exist that could bias analyses. Understanding this information is essential prior to any future data sharing. The aim of this project was to compare the variables collected in countrywide and intercountry burn registers to understand their similarities and differences., Methods: Register custodians were invited to participate and share their data dictionaries. Inclusion and exclusion criteria were compared to understand each register population. Descriptive statistics were calculated for the number of unique variables. Variables were classified into themes. Definition, method, timing of measurement, and response options were compared for a sample of register concepts., Results: 13 burn registries participated in the study. Inclusion criteria varied between registers. Median number of variables per register was 94 (range 28 - 890), of which 24% (range 4.8 - 100%) were required to be collected. Six themes (patient information, admission details, injury, inpatient, outpatient, other) and 41 subthemes were identified. Register concepts of age and timing of injury show similarities in data collection. Intent, mechanism, inhalational injury, infection, and patient death show greater variation in measurement., Conclusions: We found some commonalities between registers and some differences. Commonalities would assist in any future efforts to pool and compare data between registers. Differences between registers could introduce selection and measurement bias, which needs to be addressed in any strategy aiming to facilitate burn register data sharing. We recommend the development of common data elements used in an international minimum data set for burn injuries, including standard definitions and methods of measurement, as the next step in achieving burn register data sharing., Competing Interests: Declaration of Competing Interest All authors, with the exception of AY, have completed an International Committee of Medical Journal Editors disclosure of interest form at www.icmje.org/disclosure-of-interest/. EB, JM, MB, RLB, LD, ME, YI, LP, NZ, and YS do not have any interests to declare. NB declares financial payments from Central Ohio Trauma Services as an ATLS instructor, Mallinckrodt Pharmaceuticals as a speaker, Vericel Corporation as an instructor, and Carpenter Lipps and Leland for expert testimony. NB receives a stipend from The Ohio State University for travel and meetings. NB is a board member of the Trauma Intervention Program and Epic Trauma steering board, both of which are unpaid positions. KM declares that the contents of this manuscript relating to the Burn Model System were developed under a grant from the National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR grant number 90DPGE0004). NIDILRR is a Center within the Administration for Community Living (ACL), Department of Health and Human Services (HHS). The contents of this manuscript do not necessarily represent the policy of NIDILRR, ACL, HHS, and you should not assume endorsement by the Federal Government. OCT is the lead of the German Burn Registry and member of the steering committee of the German Society for Burn Treatment. LMT is a Representative on the Burns Registry of Australia and New Zealand steering committee, and representative on the Australian and New Zealand Burn Association board. KD is the medical director of the International Burn Injury Database. As part of this role, he is the co-chair of the Burn Care Informatics Group. This is a part time role funded by the NHS., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Introduction: Improvement in burn injury data collections and the quality of databanks has allowed meaningful study of the epidemiologic trends in burn care. The study assessed factors associated with disposition of burn injury patients from emergency department accounting for pre-hospital care and emergency care., Methods: This prospective observational pilot study of the South Asia Burn Registry project was conducted at selected public sector burn centers in Bangladesh and Pakistan (September 2014 - January 2015). All age groups with an initial presentation to the burn centers were enrolled. Descriptive and regression analysis is presented., Results: A total of 2749 patients were enrolled. The mean age was 21.7 ± 18.0 years, 55.3% were males, and about a quarter were children < 5 years. About 46.9% of the females were housewives. Scald burns were common among children (67.6%) while flame burns were common among adults (44.3%). About 75% of patients were brought in via non-ambulance mode of transport. More than 55% of patients were referrals from other facilities or clinics. The most common first aid given pre-hospital was the use of water or oil. About 25% were admitted for further care. The adjusted odds of being admitted compared to being sent home were highest for children < 5 yrs, those with higher total body surface area burnt, having arrived via ambulance, scald and electrical burn, having an associated injury and inhalational injury., Conclusion: The study provides insight into emergency burn care and associated factors that influenced outcomes for patients with burn injuries., Competing Interests: Declaration of Competing Interest The authors do not have any conflict of interest to declare., (Copyright © 2024 Elsevier Ltd and International Society of Burns Injuries. All rights reserved.)

Introduction: Initiated in June 2019, this collaborative effort involved 15 public and private sector hospitals in Pakistan. The primary objective was to enhance the capacity for pediatric neuro-oncology (PNO) care, supported by a My Child Matters/Foundation S grant., Methods: We aimed to establish and operate Multidisciplinary Tumor Boards (MTBs) on a national scale, covering 76% of the population (185.7 million people). In response to the COVID-19 pandemic, MTBs transitioned to videoconferencing. Fifteen hospitals with essential infrastructure participated, holding monthly sessions addressing diagnostic and treatment challenges. Patient cases were anonymized for confidentiality. Educational initiatives, originally planned as in-person events, shifted to a virtual format, enabling continued implementation and collaboration despite pandemic constraints., Results: A total of 124 meetings were conducted, addressing 545 cases. To augment knowledge, awareness, and expertise, over 40 longitudinal lectures were organized for healthcare professionals engaged in PNO care. Additionally, two symposia with international collaborators and keynote speakers were also held to raise national awareness. The project achieved significant milestones, including the development of standardized national treatment protocols for low-grade glioma, medulloblastoma, and high-grade glioma. Further protocols are currently under development. Notably, Pakistan's first pediatric neuro-oncology fellowship program was launched, producing two graduates and increasing the number of trained pediatric neuro-oncologists in the country to three., Discussion: The initiative exemplifies the potential for capacity building in PNO within low-middle income countries. Success is attributed to intra-national twinning programs, emphasizing collaborative efforts. Efforts are underway to establish a national case registry for PNO, ensuring a comprehensive and organized approach to monitoring and managing cases. This collaborative initiative, supported by the My Child Matters/Foundation S grant, showcases the success of capacity building in pediatric neuro-oncology in low-middle income countries. The establishment of treatment protocols, fellowship programs, and regional tumor boards highlights the potential for sustainable improvements in PNO care., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Mushtaq, Qureshi, Javed, Sheikh, Bakhshi, Laghari, Enam, Anwar, Hilal, Kabir, Ahmad, Goraya, Mistry, Rashid, Maaz, Munawar, Khan, Bashir, Hashmi, Saeed, Khandwala, Rehman, Dewan, Khan, Karim, Shaheen, Zia, Yasmeen, Mahmood, Memon, Kirmani, Resham, Kadri, Riaz, Hamid, Ghafoor, Imam, Mushtaq, Rana, Bouffet and Minhas.)

Objective: Green dentistry is an emerging concept necessary to address the worsening climatic changes. It is essential to compile the existing literature on knowledge, attitude, and practice on green dentistry that can be accomplished by conducting a literature review. The objective of this literature review was to summarize and present the existing knowledge that dentists have regarding green dental practices, their attitude about this shift towards sustainability, and steps that they have taken in their personal practice to adhere towards an eco-friendlier dental approach., Methods: Three months of effective research and review development from March 2022 to June 2022. Design using keywords, a literature search was performed in PubMed, Google scholar and Web of Science databases. A total of 13 articles of 45, fulfilling the inclusion criteria were selected, of which two were excluded as these were not in English., Results: Dental practitioners have good knowledge about green dentistry and positive attitudes towards environment conservation, but implementation in their practice is not adequate. Most common themes of knowledge, attitude and practice assessment in green dentistry are amalgam management, radiographic management, infection control, waste management, water, and electricity management., Conclusion: The absence of adequate literature on eco-friendly practices in dentistry makes it difficult to validate the findings of most of these studies. Dental professionals are familiar with environmentally friendly dental practices and have a positive outlook on their role in environmental protection, but its application in practice is far from adequate., (Copyright: © Pakistan Journal of Medical Sciences.)

Objectives: To assess outcomes associated with photobiomodulation therapy (PBMT) for hearing loss in human and animal studies., Design: Systematic review and narrative synthesis in accordance with PRISMA guidelines., Setting: Data bases searched: MEDLINE, EMBASE, CENTRAL, ClinicalTrials.gov and Web of Science. No limits were placed on language or year of publication. Review conducted in accordance with the PRISMA 2020 statement., Participants: All human and animal subjects treated with PBMT for hearing loss., Main Outcome Measures: Pre- and post-PBMT audio metric outcomes., Results: Searches identified 122 abstracts and 49 full text articles. Of these, 17 studies met the inclusion criteria, reporting outcomes in 327 animals (11 studies), 30 humans (1 study), and 40 animal specimens (5 studies). PBMT parameters included 6 different wavelengths: 908 nm (1 study), 810 nm (1 study), 532 & 635 nm (1 study), 830 nm (3 studies), 808 nm (11 studies). The duration ranged from 4 to 60 minutes in a session, and the follow-up ranged from 5-28 days. Outcomes improved significantly when wavelengths within the range of 800-830 nm were used, and with greater duration of PBMT exposure. Included studies predominantly consisted of non-randomized controlled trials (10 studies)., Conclusions: Hearing outcomes following PBMT appear to be superior to no PBMT for subjects with hearing loss, although higher level evidence is required to verify this. PBMT enables concentrated, focused delivery of light therapy to the inner ear through a non-invasive manner with minimal side effects. As a result of heterogeneity in reporting PBMT parameters and outcomes across the included studies, direct comparison is challenging., (© 2023 The Authors. Clinical Otolaryngology published by John Wiley & Sons Ltd.)

Competing Interests: Competing interests: None declared.

The feasibility of using quantum dots fabricated from materials with built-in spontaneous polarizations for the electric potential stimulation of biological structures in aqueous environments is evaluated by modeling the electric potential produced in the vicinity of such quantum dots. By modeling the external potential created by the spherical nanoscale region of a material with spontaneous polarization, and by considering Debye screening in the vicinity of the quantum dot, it is found that electric potential around these nanostructures is sufficient to cause physiological effects in selected biological systems. These findings suggest that quantum dots may be used in lieu of quantum dots with polarizations produced using an external laser to cause physiological effects. The elimination of the external laser represents a significant benefit of using quantum dots with permanent, built-in spontaneous polarization.

Objective: To establish outcomes following photobiomodulation therapy for tinnitus in humans and animal studies., Methods: A systematic review and narrative synthesis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The databases searched were: Medline, Embase, Cochrane Central Register of Controlled Trials ('Central'), ClinicalTrials.gov and Web of Science including the Web of Science Core collection. There were no limits on language or year of publication., Results: The searches identified 194 abstracts and 61 full texts. Twenty-eight studies met the inclusion criteria, reporting outcomes in 1483 humans (26 studies) and 34 animals (2 studies). Photobiomodulation therapy parameters included 10 different wavelengths, and duration ranged from 9 seconds to 30 minutes per session. Follow up ranged from 7 days to 6 months., Conclusion: Tinnitus outcomes following photobiomodulation therapy are generally positive and superior to no photobiomodulation therapy; however, evidence of long-term therapeutic benefit is deficient. Photobiomodulation therapy enables concentrated, focused delivery of light therapy to the inner ear through a non-invasive manner, with minimal side effects.

Background: Despite growing interest in and commitment to integration, or integrated care, the concept is ill-defined and the resulting evidence base fragmented, particularly in low- and middle-income countries (LMICs). Underlying this challenge is a lack of coherent approaches to measure the extent of integration and how this influences desired outcomes. The aim of this scoping review is to identify measurement approaches for integration in LMICs and map them for future use., Methods: Arksey and O'Malley's framework for scoping reviews was followed. We conducted a systematic search of peer-reviewed literature measuring integration in LMICs across three databases and screened identified papers by predetermined inclusion and exclusion criteria. A modified version of the Rainbow Model for Integrated Care guided charting and analysis of the data., Results: We included 99 studies. Studies were concentrated in the Africa region and most frequently focused on the integration of HIV care with other services. A range of definitions and methods were identified, with no single approach for the measurement of integration dominating the literature. Measurement of clinical integration was the most common, with indicators focused on measuring receipt of two or more services provided at a single point of time. Organizational and professional integration indicators were focused on inter- and intra-organizational communication, collaboration, coordination, and continuity of care, while functional integration measured common information systems or patient records. Gaps were identified in measuring systems and normative integration. Few tools were validated or publicly available for future use., Conclusion: We identified a wide range of recent approaches used to measure integration in LMICs. Our findings underscore continued challenges with lack of conceptual cohesion and fragmentation which limits how integration is understood in practice., (© 2023. The Author(s).)

With increasing evidence of emotional well-being disorders associated with polycystic ovary syndrome (PCOS), effective screening processes are of utmost importance. We studied the impact of using questionnaires to screen for emotional and psychosexual well-being across different models of care for PCOS. We analysed the data from the surveys to assess the difference in the prevalence of emotional and psychosexual ill-being across ethnicity and region. In this prospective cohort study, we invited all women attending consultations for PCOS in Birmingham, UK, and Bengaluru and Navi Mumbai, India. Those who consented to participate in the study were invited to complete a pre-clinic survey about socio-demographic data, Hospital Anxiety and Depression Scale (HADS), Body Image Concern Inventory (BICI), Beliefs about Obese Person scale (BAOP), and Female Sexual Function Index score (FSFI) and a post-clinic survey on clinic experience, lifestyle advice, and specialist referral. A total of 115 women were included in this study. The rate of questionnaire completion was 98.3% (113/115), 97.4% (112/115), 93.04% (107/115), and 84.3% (97/115) for HADS, BICI, BAOP, and FSFI, respectively. In the post-clinic survey, 28.8% reported they were screened for anxiety, 27.1% for depression, and 45.8% for body image concerns. The prevalence of anxiety, depression, and body dysmorphic disorder through pre-clinic survey was 56.5% (50.0% UK vs 59.5% India, P = 0.483), 16.5% (13.9% UK vs 17.7% India, P = 0.529), and 29.6% (36.1% UK vs 26.6% India, P = 0.208), respectively. Surveys with validated questionnaires can improve screening for emotional and psychosexual well-being associated with PCOS which may be missed by ad hoc screening during consultations.

Background: Unintentional childhood injuries are a growing public health concern, and the home is the most common location for non-fatal injuries in children less than 5 years of age. This study describes the long-term effects of two injury prevention educational interventions for caregivers-an educational pamphlet and an in-home tutorial guide-by comparing the change in the prevalence of home injury hazards before and after the interventions., Methods: This was a pre- (June and July 2010) and post-study with short-term follow-up (November-December 2010) and long-term follow-up (November 2012- January 2013). Neighborhood one included households that received only educational pamphlets after completing a baseline assessment; neighborhood two included households that received an in-home tutorial guide after completing the baseline assessment and receiving the educational pamphlet. The main outcome of this study was the reduction in home injury hazards for children under 5 years of age., Results: A total of 312 households participated in the long-term phase to compare the effect of the interventions. Between the short-term to long-term follow-up, injury hazards significantly reduced in neighborhood two compared to neighborhood one. These included fall hazards (walker use) (IRR 0.24 [95% CI 0.08-0.71]), drowning hazards (open bucket of water in the courtyard and uncovered water pool) (IRR 0.45 [95% CI 0.85-0.98] and IRR 0.46 [95% CI 0.76-0.94]), burn hazards (iron, water heater within reach of child) (IRR 0.56 [95% CI 0.33-0.78] and IRR 0.58 [95% CI 0.32-0.91]), poisoning hazards (shampoo/soap and medicine within reach of child) (IRR 0.53 [95% CI 0.44-0.77] and IRR 0.7 [95% CI 0.44-0.98]) and breakable objects within reach of child (IRR 0.62 [95% CI: 0.39-0.99])., Conclusion: An injury prevention tutorial to caretakers of children supplemented with pamphlets could significantly decrease the incidence of falls, drowning, burns, poisoning, and cut injury hazards for children under 5 years of age in their homes in a low-resource setting. This intervention has the potential to be integrated in existing public health programs, such as Lady Health Visitors (LHVs), to disseminate injury prevention information in routine home health visits., Competing Interests: Declaration of Competing Interest The authors declare that they have no competing interests., (Copyright © 2022. Published by Elsevier Ltd.)

Background: Around the globe there are 2.4 billion people in need of rehabilitation. Disability and rehabilitation have not gained much importance in the public health arena, possibly due to limited research and awareness regarding the significance of rehabilitation. This study aimed to provide an in-depth understanding of the barriers and facilitators to the provision and utilization of rehabilitation services in public sector tertiary care hospitals of Karachi, Pakistan., Methodology: This qualitative exploratory study was conducted from August to September 2015 in two tertiary care hospitals of Karachi. The criterion for hospital selection included the availability of functional rehabilitation services. Twenty-four key informant interviews were conducted with health professionals, including doctors, physiotherapists, occupational therapists, prosthetists, orthotists, as well as patients and caregivers. Qualitative content analysis was performed using a consensual qualitative research approach. Responses from key informant interviews were coded into free nodes and then categorized into themes., Results: Two themes emerged from the data: constraints to the provision of rehabilitation services, and barriers to the utilization of rehabilitation services. Basic infrastructure was available at both study sites; however, a lack of structured guidelines for referring patients to these services, a lack of information-sharing and guidance to the patients, and a limited supply of equipment (treatment modalities) hampered the provision of services. The barriers to rehabilitation services included cost pertaining to transport, environmental barriers, lack of support from the employer, and strain on and lack of support from caregivers., Conclusion: Rehabilitation services require attention and investment in research and allocation of funds to strengthen the service delivery system. Hospitals, alongside the department of health, need to develop a strategic plan to set future directions and standards of available rehabilitation services., Competing Interests: Declaration of Competing Interest None of the authors have any conflicts of interest to declare., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Introduction: Despite the existence of a national motorcycle helmet law that applies to both riders and pillion riders, the use of helmets among female pillion riders is low in Pakistan. This study aimed to explore perceptions, barriers, and strategies related to helmet use by female pillion riders., Methods: Data was collected from nine focus group discussions held with female pillion riders and male riders working at the Aga Khan University. Focus group discussions were transcribed verbatim and checked for accuracy before being imported into NVivo2. Transcriptions were analyzed using a thematic analysis approach., Results: Four overarching themes emerged, including: (1) motorcycle as mode of transportation, (2) law on helmet use and its enforcement, (3) barriers to helmet use among female pillion riders, and (4) strategies to improve helmet use among female pillion riders. Female participants never wore a helmet or considered wearing it even though "safety" was the most important benefit of helmet usage expressed. The motorcycle is an economical mode of transportation for families, particularly those in the middle and lower socioeconomic groups. Helmet laws are not strictly enforced for pillion riders, including females. Possible barriers to helmet use among female pillion riders included discomfort in wearing a helmet, uninvited attention from others, concerns about physical appearance, and substandard quality and design of helmets. Suggested strategies for implementing helmet use among female pillion riders encompassed awareness generation through media, complementary distribution of helmets, strict law enforcement in the form of fines, and the influence of religious leaders regarding social norms and cultural barriers., Conclusion: Motorcycles are a risky mode of transport, and there are several social and cultural barriers regarding helmet use by female pillion riders. Enforcing helmet laws for female pillion riders, raising awareness about helmet laws, and making helmet use among pillion riders a norm are some essential steps to take to promote helmet use among female pillion riders in Pakistan., Competing Interests: Declaration of Competing Interest The authors declare that they have no competing interests., (Copyright © 2023. Published by Elsevier Ltd.)

Objective: To assess the association of ethnicity and birthplace on emotional and psychosexual well-being in women with polycystic ovary syndrome (PCOS)., Design: Cross-sectional study., Setting: Community recruitment via social media campaigns., Population: Women with PCOS completing an online questionnaire in September-October 2020 (UK) and May-June 2021 (India)., Methods: The survey has five components, with a baseline information and sociodemographic section followed by four validated questionnaires: Hospital Anxiety and Depression Scale (HADS); Body Image Concern Inventory (BICI); Beliefs About Obese Persons Scale (BAOP); and Female Sexual Function Index (FSFI)., Main Outcome Measures: We used adjusted linear and logistic regression models, adjusting for age, education, marital status and parity, to evaluate the impact of ethnicity and birthplace on questionnaire scores and outcomes (anxiety and/or depression, HADS ≥ 11; body dysmorphic disorder (BDD), BICI ≥ 72)., Results: A total of 1008 women with PCOS were included. Women of non-white ethnicity (613/1008) reported higher rates of depression (OR 1.96, 95% CI 1.41-2.73) and lower BDD (OR 0.57, 95% CI 0.41-0.79) than white women (395/1008). Women born in India (453/1008) had higher anxiety (OR 1.57, 95% CI 1.00-2.46) and depression (OR 2.20, 95% CI 1.52-3.18) but lower BDD rates (OR 0.42, 95% CI 0.29-0.61) than women born in the UK (437/1008). All sexual domains, excluding desire, scored lower for non-white women and women born in India., Conclusions: Non-white women and women born in India reported higher emotional and sexual dysfunction, whereas white women and women born in the UK reported higher body image concerns and weight stigma. Ethnicity and birthplace need to be considered for tailored, multidisciplinary care., (© 2023 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)

Background: There is a large and growing unmet need for rehabilitation - a diverse category of services that aim to improve functioning across the life course - particularly in low- and middle-income countries. Yet despite urgent calls to increase political commitment, many low- and middle-income country governments have dedicated little attention to expanding rehabilitation services. Existing policy scholarship explains how and why health issues reach the policy agenda and offers applicable evidence to advance access to physical, medical, psychosocial, and other types of rehabilitation services. Drawing from this scholarship and empirical data on rehabilitation, this paper proposes a policy framework to understand national-level prioritization of rehabilitation in low- and middle-income countries., Methods: We conducted key informant interviews with rehabilitation stakeholders in 47 countries, complemented by a purposeful review of peer-reviewed and gray literature to achieve thematic saturation. We analyzed the data abductively using a thematic synthesis methodology. Rehabilitation-specific findings were triangulated with policy theory and empirical case studies on the prioritization of other health issues to develop the framework., Results: The novel policy framework includes three components which shape the prioritization of rehabilitation on low- and middle-income countries' national government's health agendas. First, rehabilitation lacks a consistent problem definition, undermining the development of consensus-driven solutions which could advance the issue on policy agendas. Second, governance arrangements are fragmented within and across government ministries, between the government and its citizens, and across national and transnational actors engaged in rehabilitation service provision. Third, national legacies - particularly from civil conflict - and weaknesses in the existing health system influences both rehabilitation needs and implementation feasibility., Conclusions: This framework can support stakeholders in identifying the key components impeding prioritization for rehabilitation across different national contexts. This is a crucial step for ultimately better advancing the issue on national policy agendas and improving equity in access to rehabilitation services., (© 2023. The Author(s).)

Tunable lasers emitting in the 2-3 µm wavelength range that are compatible with photonic integration platforms are of great interest for sensing applications. To this end, combining GaSb-based semiconductor gain chips with Si 3 N 4 photonic integrated circuits offers an attractive platform. Herein, we utilize the low-loss features of Si 3 N 4 waveguides and demonstrate a hybrid laser comprising a GaSb gain chip with an integrated tunable Si 3 N 4 Vernier mirror. At room temperature, the laser exhibited a maximum output power of 15 mW and a tuning range of ∼90 nm (1937-2026 nm). The low-loss performance of several fundamental Si 3 N 4 building blocks for photonic integrated circuits is also validated. More specifically, the single-mode waveguide exhibits a transmission loss as low as 0.15 dB/cm, the 90° bend has 0.008 dB loss, and the 50/50 Y-branch has an insertion loss of 0.075 dB.

Objective: To assess the role of hypomagnesaemia in the development of permanent hypocalcaemia following thyroidectomy., Methods: The prospective cohort study was conducted from April 3, 2017, to January 2, 2020, at Surgical Unit 1, Benazir Bhutto Hospital, Rawalpindi, Pakistan, and comprised of patients of both genders undergoing total and near total thyroidectomy. Post-operative calcium and magnesium levels were noted, and the patients were followed up after 6 months and fasting serum calcium, magnesium and parathyroid hormone levels were checked. Signs and symptoms of hypocalcaemia were noted. Data was analysed using SPSS 22., Results: Out of the 62 patients followed up, 57 (91.9%) were females and 5 (8.1%) males. The overall mean age was 38.5 ± 12.1 years Post-operative hypomagnesaemia was seen in 6(9.8%) patients and none developed follow-up hypocalcaemia. Post-operative magnesium levels were significantly negatively correlated with follow-up parathyroid hormone level (p=0.006). Fall in magnesium post-operatively and follow-up magnesium were positively correlated with follow-up parathyroid hormone (p<0.05). Permanent hypocalcaemia was seen in 7(11.4%) patients and it was significantly associated with pre-operative and post-operative calcium levels, post-operative symptoms of hypocalcaemia and readmission for hypocalcaemia after discharge (p<0.05). Follow-up hypomagnesaemia was significantly associated with follow-up hypocalcaemia (p=0.024) and follow-up symptoms of hypocalcaemia (p=0.031)., Conclusion: Acute development of mild hypomagnesaemia post-operatively may be beneficial in early positive feedback for parathyroid hormone secretion. Hypomagnesemia 6 months after surgery may be involved in PTH organ resistance. The complex role of hypomagnesemia on PTH levels must be further explored.

Considerable progress has been made in saving the lives of children younger than 5 years. Nevertheless, these advances have failed to help all children thrive, particularly children with disabilities. We describe the increasing prevalence of disability among children and adolescents. We evaluate the current situation regarding children with disabilities and rehabilitation in the context of health systems, particularly those in low- and middle-income countries. Within the newborn health agenda, congenital anomalies often require early intervention and rehabilitation. We provide Argentina as an example of a country where rehabilitation for congenital anomalies is integrated into the health system. We argue that congenital anomalies that require rehabilitation have the potential to strengthen rehabilitation systems and policies by: strengthening coordination between primary care and rehabilitation; identifying and understanding pathways that allow families to engage with services; providing human resources for rehabilitation; and building systems and resources that support assistive technology and rehabilitation. We propose ways for countries to prioritize and integrate early identification, referral and care for children with congenital anomalies to strengthen health systems for all. We identify opportunities to expand policy and planning and to design service delivery and workforce strategies through World Health Organization guidelines and frameworks for rehabilitation. We argue that the global health community must act to ensure that rehabilitation services to support functioning from birth are well established, accepted and integrated within health systems, and that disability is prioritized within child health. These steps would strengthen health systems, ensure functioning from birth and make rehabilitation accessible to all., ((c) 2022 The authors; licensee World Health Organization.)

Objective: To assess the epidemiology of thyroid disorders and early and late complications following thyroidectomy.., Methods: The descriptive cohort study was conducted at the Benazir Bhutto Hospital, Rawalpindi, Pakistan, from April 2017 to Janurary 2020, and comprised of patients undergoing total and near-total thyroidectomy. Post-operative complications were noted, and patients were followed up after 6 months to assess long-term complications. Data was analysed using SPSS 22., Results: Of the 75 patients, 70(93.3%) were females and 43(58.1%) were aged <40 years. The most common symptom was neck swelling with hyperthyroidism 20(41.7%) and pressure symptom 20(41.7%). Post-operative complications developed in 26(35.6%) patients, with symptomatic hypocalcaemia being the most common 10(13.7%), followed by hoarseness 6(8.2%). Biopsy results were available for 50(66.6%) patients. Benign pathology was present in 44(88%) patients and 6(12.0%) had malignancy. Follow-up data was available for 62(82.7%) patients among whom symptomatic hypocalcaemia was the leading complication in 33(53.2%), followed by permanent hoarseness in 6(9.7%)., Conclusions: Symptomatic hypocalcaemia and hoarseness were found to be the most common post-operative and long-term complications of thyroidectomy.

Introduction: Brain tumors are the most common solid neoplasms and the second most common malignancy in the pediatric age group. Due to the complexity of their management, pediatric central nervous system (CNS) tumors are not a priority in low- and middle-income countries (LMICs)., Methods: In an attempt to improve the survival rate and overall care, we introduced a dedicated pediatric neuro-oncology service in our institute and evaluated its impact by dividing the pre- and post-era into two cohorts and comparing them: 1998-2013 (16 years: cohort A) and 2014-2019 (6 years: cohort B, after the start of dedicated neuro-oncology services)., Results: We observed that after the implementation of a proper neuro-oncology service, the proportion of patients treated with curative intent increased, and survival improved in cohort B. The patient volume also increased from 15.5 per year in cohort A to 44.8 per year in cohort B. The percentage of children given radiation therapy also increased significantly, while the proportion of children treated with chemotherapy remained stable., Conclusion: A dedicated multidisciplinary team trained and knowledgeable in the specialty of pediatric neuro-oncology can enhance and improve outcomes, and supportive care and help can provide good quality of life to children and their families with brain neoplasms., (© 2022 Wiley Periodicals LLC.)

Background: Recent estimates report that 2.4 billion people with health conditions globally could benefit from rehabilitation. While the benefits of rehabilitation for individuals and society have been described in the literature, many individuals, especially in low- and middle-income countries do not have access to quality rehabilitation. As the need for rehabilitation continues to increase, it is crucial that health systems are adequately prepared to meet this need. Practice- and policy-relevant evidence plays an important role in health systems strengthening efforts. The aim of this paper is to report on the outcome of a global consultative process to advance the development of a research framework to stimulate health policy and systems research (HPSR) for rehabilitation, in order to generate evidence needed by key stakeholders., Methods: A multi-stakeholder participatory technical consultation was convened by WHO to develop a research framework. This meeting included participants from selected Member States, rehabilitation experts, HPSR experts, public health researchers, civil society and other stakeholders from around the world. The meeting focused on introducing systems approaches to stakeholders and deliberating on priority rehabilitation issues in health systems. Participants were allocated to one of four multi-stakeholder groups with a facilitator to guide the structured technical consultations. Qualitative data in the form of written responses to guiding questions were collected during the structured technical consultations. A technical working group was then established to analyse the data and extract its emerging themes. This informed the development of the HPSR framework for rehabilitation and a selection of preliminary research questions that exemplify how the framework might be used., Results: A total of 123 individuals participated in the multi-stakeholder technical consultations. The elaborated framework is informed by an ecological model and puts forth elements of the six WHO traditional building blocks of the health system, while emphasizing additional components pertinent to rehabilitation, such as political priority, engagement and participatory approaches, and considerations regarding demand and access. Importantly, the framework highlights the multilevel interactions needed across health systems in order to strengthen rehabilitation. Additionally, an initial set of research questions was proposed as a primer for how the framework might be used., Conclusions: Strengthening health systems to meet the increasing need for rehabilitation will require undertaking more HPSR to inform the integration of rehabilitation into health systems globally. We anticipate that the proposed framework and the emerging research questions will support countries in their quest to increase access to rehabilitation for their populations., (© 2022. The Author(s).)

Since the Coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), many studies have shown that besides common COVID-19 symptoms, patients may develop various neuropsychiatric conditions including anxiety, mood disorders, psychosis, neurodegenerative diseases (e.g., dementia), insomnia, and even substance abuse disorders. COVID-19 can also worsen the patients underlying neuropsychiatric and neurodevelopmental conditions during or after the system phase of disease. In this review, we discuss the impact of SARS-CoV-2 infection on development or status of neuropsychiatric conditions during or following COVID-19.

Background: Low- and middle-income countries sustain the majority of pediatric cancer burden, with significantly poorer survival rates compared to high-income countries. Collaboration between institutions in low- and middle-income countries and high-income countries is one of the ways to improve cancer outcomes., Methods: Patient characteristics and effects of a pediatric neuro-oncology twinning program between the Hospital for Sick Children in Toronto, Canada and several hospitals in Karachi, Pakistan over 7 years are described in this article., Results: A total of 460 patients were included in the study. The most common primary central nervous system tumors were low-grade gliomas (26.7%), followed by medulloblastomas (18%), high-grade gliomas (15%), ependymomas (11%), and craniopharyngiomas (11.7%). Changes to the proposed management plans were made in consultation with expert physicians from the Hospital for Sick Children in Toronto, Canada. On average, 24% of the discussed cases required a change in the original management plan over the course of the twinning program. However, a decreasing trend in change in management plans was observed, from 36% during the first 3.5 years to 16% in the last 3 years. This program also led to the launch of a national pediatric neuro-oncology telemedicine program in Pakistan., Conclusions: Multidisciplinary and collaborative efforts by experts from across the world have aided in the correct diagnosis and treatment of children with brain tumors and helped establish local treatment protocols. This experience may be a model for other low- and middle-income countries that are planning on creating similar programs., (© 2022 Wiley Periodicals LLC.)

Background: Networks are critical for leadership development, but not all networks and networking activities are created equally. Women and people of color face unique challenges accessing networks, many of which were exacerbated during the COVID-19 pandemic. Virtual platforms offer opportunities for global professionals to connect and can be better tailored to meet the needs of different groups. As part of the Consortium of Universities for Global Health annual meeting in 2021, we organized a networking session to provide a networking space for emerging women leaders in global health (i.e. trainees, early career professionals, and/or those transitioning to the field)., Objectives: We evaluated the virtual networking session to better understand participants' perception of the event and its utility for professional growth and development., Methods: We distributed online surveys to participants immediately after the event and conducted a 3-month follow-up. Out of 225 participant, 24 responded to both surveys and their data was included in the analysis. We conducted descriptive quantitative analysis for multiple choice and Likert scale items; qualitative data was analyzed for themes., Findings: Participants represented 8 countries and a range of organizations. Participants appreciated the structure of the networking session; all participants agreed that they met someone from a different country and most indicated they had plans to collaborate with a new connection. When asked if the event strengthened their network and if they will keep in touch with new people, most participants strongly agreed or agreed in both surveys. However, after the follow-up, participants noted challenges in sustaining connections including lack of follow-up and misaligned expectations of networks., Conclusions: The virtual networking event brought together women in global health from diverse backgrounds. This study found that while networking events can be impactful in enhancing professional networks, ensuring sustained connections remains a challenge. This study also suggests that measures to increase the depth and meaningfulness of these connections in a virtual setting and enabling post-event collaboration can help networks become more inclusive and sustainable., Competing Interests: The authors have no competing interests to declare., (Copyright: © 2022 The Author(s).)

Objective: To develop a core outcome set for international burn research., Design: Development and international consensus, from April 2017 to November 2019., Methods: Candidate outcomes were identified from systematic reviews and stakeholder interviews. Through a Delphi survey, international clinicians, researchers, and UK patients prioritised outcomes. Anonymised feedback aimed to achieve consensus. Pre-defined criteria for retaining outcomes were agreed. A consensus meeting with voting was held to finalise the core outcome set., Results: Data source examination identified 1021 unique outcomes grouped into 88 candidate outcomes. Stakeholders in round 1 of the survey, included 668 health professionals from 77 countries (18% from low or low middle income countries) and 126 UK patients or carers. After round 1, one outcome was discarded, and 13 new outcomes added. After round 2, 69 items were discarded, leaving 31 outcomes for the consensus meeting. Outcome merging and voting, in two rounds, with prespecified thresholds agreed seven core outcomes: death, specified complications, ability to do daily tasks, wound healing, neuropathic pain and itch, psychological wellbeing, and return to school or work., Conclusions: This core outcome set caters for global burn research, and future trials are recommended to include measures of these outcomes., Competing Interests: Competing interests: All authors have completed the ICMJE uniform disclosure form at www.icmje.org/disclosure-of-interest/ and declare: support from the NIHR for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.)

The development of integrated photonics experiences an unprecedented growth dynamic, owing to accelerated penetration to new applications. This leads to new requirements in terms of functionality, with the most obvious feature being the increased need for wavelength versatility. To this end, we demonstrate for the first time the flip-chip integration of a GaSb semiconductor optical amplifier with a silicon photonic circuit, addressing the transition of photonic integration technology towards mid-IR wavelengths. In particular, an on-chip hybrid DBR laser emitting in the 2 µm region with an output power of 6 mW at room temperature is demonstrated. Wavelength locking was achieved employing a grating realized using 3 µm thick silicon-on-insulator (SOI) technology. The SOI waveguides exhibit strong mode confinement and low losses, as well as excellent mode matching with GaSb optoelectronic chips ensuring low loss coupling. These narrow line-width laser diodes with an on-chip extended cavity can generate a continuous-wave output power of more than 1 mW even when operated at an elevated temperature of 45°C. The demonstration opens an attractive perspective for the on-chip silicon photonics integration of GaSb gain chips, enabling the development of PICs in a broad spectral range extending from 1.8 µm to beyond 3 µm.

We hereby propose the use of stable, biocompatible, and uniformly sized polymeric micelles as high-radiotracer-payload carriers at region-of-interest with negligible background activity due to no or low offsite radiolysis. We modified glycol chitosan (GC) polymer with varying levels of palmitoylation (P) and quaternization (Q). Quaternary ammonium palmitoyl glycol chitosan (GCPQ) with a Q:P ratio of 9:35 (Q9P35GC) offers >99% biocompatibility at 10 mg mL−1. Q9P35GC micelles exhibit >99% 99mTechnetium (99mTc) radiolabeling via the stannous chloride reduction method without heat. The 99mTc-Q9P35GC micelles (65 ± 3 nm) exhibit >98% 6 h serum stability at 37 °C and 7 day of radiochemical stability at 25 °C. HepG2 cells show a higher uptake of FITC-Q9P35GC than Q13P15GC and Q20P15GC. The in vivo 24 h organ cumulated activity (MBq h) order follows: liver (234.4) > kidneys (60.95) > GIT (0.73) > spleen (88.84). The liver to organ ratio remains higher than 2.4, rendering a better contrast in the liver. The radiotracer uptake decreases significantly in fibrotic vs. normal liver, whereas a blocking study with excess Q9P35GC significantly decreases the radiotracer uptake in a healthy vs. fibrotic liver. FITC-Q9P35GC shows in vivo hepato-specific uptake. Radiotracer liver uptake profile follows reversible binding kinetics with data fitting to two-tissue compartmental (2T), and graphical Ichise multilinear analysis (MA2) with lower AIC and higher R2 values, respectively. The study concludes that 99mTc-Q9P35GC can be a robust radiotracer for noninvasive hepatocyte function assessment and diagnosis of liver fibrosis. Furthermore, its multifunctional properties enable it to be a promising platform for nanotheranostic applications.

Road traffic injuries (RTIs) remain a leading cause of morbidity and mortality in Southeast Asia. We aim to estimate the prevalence and predictors of rear seatbelt use, a key behavioural risk factor for RTI, in Bandung and Bangkok, two cities in Southeast Asia. Roadside observational studies were conducted to provide a representative picture of the prevalence in each city. From eight rounds of observations (July 2015 to April 2019), 39,479 and 7,207 rear-seat passengers were observed in Bandung and Bangkok. Across all rounds, 4.2% of rear-seat passengers used seatbelts in Bandung, compared to 8.4% in Bangkok. In both cities, males and adults, as compared to females and adolescents (aged 12-17 years), had higher odds of rear seatbelt use, as did passengers with a restrained driver. Findings highlight the need for rear seatbelt laws in Bandung and improved enforcement of existing rear seatbelt laws in Bangkok.

Introduction: Retinoblastoma (RB) tumors having high-risk histopathologic features (HRFs) have an increased risk of metastasis and disease relapse. However, RB has not been studied widely in Pakistan. Therefore, we evaluated the association of clinical, histopathologic, and radiological findings with HRFs in patients with RB who were treated at the Indus Health & Hospital Network in Karachi, Pakistan., Methods: We enrolled treatment-naïve patients with RB who received upfront enucleation from September 2017 to February 2021. We evaluated enucleated eyes with the Intraocular Classification of Retinoblastoma system and classified HRFs as invasion of the anterior chamber, including the iris and ciliary body, or massive invasion of the choroid, sclera, or optic nerve (postlaminar and/or up to the transection line)., Results: Of 117 patients with RB treated at our institution during the study period, 54 received upfront enucleation. Unilateral disease was present in 92.6% of cases. The most frequent disease signs and symptoms included the presence of vitreous seeds (30.6%) and leukocoria (100%), respectively. The most frequent HRFs and radiological findings comprised massive choroidal invasion (15.1%) and anterior chamber enhancement (66.7%), respectively. The majority (62.9%) of patients did not exhibit any HRFs. Female sex, pseudohypopyon, iris neovascularization, buphthalmos, and glaucoma had significant predictive ability for HRF occurrence., Conclusion: Pseudohypopyon, iris neovascularization, buphthalmos, and glaucoma are important clinical factors that should be taken into consideration before the management of RB. Early recognition of high-risk histopathological and radiological features is essential for appropriate treatment of RB., (© 2022 Wiley Periodicals LLC.)

Introduction: There is scarcity of data on children with disabilities living in low-and-middle-income countries, including Uganda. This study describes disability prevalence and explores factors associated with different disability categories. It highlights the value of using a standardized, easy-to-use tool to determine disability in children and contextualizing disability in children in light of their developmental needs., Methods: A cross-sectional study was conducted between September 2018-January 2019 at the Iganga-Mayuge Health and Demographic Surveillance Site in Uganda. Respondents were caregivers of children between 5-17 years and were administered an in-depth Child Functioning Module (CFM). The outcome variable, disability, was defined as an ordered categorical variable with three categories-mild, moderate, and severe. Generalized ordered logit model was applied to explore factors associated with disability categories., Results: Out of 1,842 caregivers approached for the study, 1,439 (response: 78.1%) agreed to participate in the study. Out of these 1,439, some level of disability was reported by 67.89% (n = 977) of caregivers. Of these 977 children with disability, 48.01% (n = 692) had mild disability and 15.84% (n = 228) had moderate disability, while 3.96% (n = 57) had severe disability. The mean (SD) score for mild disability was 2.22±1.17, with a median of 2. The mean and median for moderate disability was 5.26±3.28 and 4 (IQR:3-6), and for severe disability was 14.23±9.51 and 12 (IQR:6-22). The most common disabilities reported were depression (54.83%) and anxiety (50.87%). Statistically significant association was found for completion of immunization status and school enrollment when controlled for a child's age, sex, having a primary caregiver, age of mother at child's birth, family system, family size and household wealth quintile., Conclusion: This study suggests association between incomplete immunization status and school enrollment for children with disability. These are areas for further exploration to ensure inclusive health and inclusive education of children with disabilities in Uganda., Competing Interests: None declared.

Background: Mitral regurgitation (MR) is common following myocardial infarction (MI). However, the subsequent trajectory of MR, and its impact on long-term outcomes are not well understood. This study aimed to examine the change in MR severity and associated clinical outcomes following MI., Methods: Records of patients admitted to a single centre between 2016 and 2017 with acute MI treated by percutaneous coronary intervention (PCI) were retrospectively examined., Results: 294/1000 consecutive patients had MR on baseline (pre-discharge) transthoracic echocardiography (TTE), of whom 126 (mean age: 70.9 ± 11.4 years) had at least one follow-up TTE. At baseline, most patients had mild MR ( n = 94; 75%), with n = 30 (24%) moderate and n = 2 (2%) severe MR. Significant improvement in MR was observed at the first follow-up TTE (median 9 months from baseline; interquartile range: 3-23), with 36% having reduced severity, compared to 10% having increased MR severity ( p < 0.001). Predictors of worsening MR included older age (mean: 75.2 vs. 66.7 years; p = 0.003) and lower creatinine clearance (mean: 60 vs. 81 mL/min, p = 0.015). Change in MR severity was significantly associated with prognosis: 16% with improving MR reached the composite endpoint of death or heart failure hospitalisation at 5 years, versus 44% ( p = 0.004) with no change, and 59% ( p < 0.001) with worsening MR., Conclusions: Of patients with follow-up TTE after MI, MR severity improved from baseline in approximately one-third, was stable in around half, with the remainder having worsening MR. Patients with persistent or worsening MR had worse clinical outcomes than those with improving MR.

Background & Objectives: Retinoblastoma is a malignant intraocular tumor and its treatment requires a multidisciplinary approach. Chemotherapy is an important modality in treatment of retinoblastoma. The purpose of this study was to assess the histopathological changes in retinoblastomas treated with chemotherapy along with correlation of comorbid conditions with high risk histopathological factors (HRF)., Methods: All post-chemotherapy enucleated eye specimens received in the pathology department between 2017 to 2021 were included in the study. Slides were retrieved and reviewed for chemotherapeutic effects, tumor regression, and for assessment of HRF. Patient demographic data, information regarding chemotherapy and co-morbid conditions were retrieved through the hospital database. Chi-square was used to analyze the relation between comorbid conditions and HRF., Results: Chemotherapeutic effects were seen in all eyes with varying degrees of responses. Necrosis, calcification, and gliosis were the most common findings. The majority of eyes showed tumor occupying less than 50% of the eye whereas complete regression was noted in one eye only. Retinal detachment, glaucoma, and buphthalmos were the most common comorbid conditions at the time of diagnosis. Patients with glaucoma were more likely to have ciliary body invasion. Kaplan Meier analysis showed that patients with more than two HRF had decreased survival rates in comparison to those with one or no HRF., Conclusion: Histopathological evaluation of chemotherapy-treated eyes shows varying degrees of response to chemotherapy. Post enucleation histopathological evaluation of the globe plays an important role in assessing disease activity and guiding further treatment to prevent metastasis., (Copyright: © Pakistan Journal of Medical Sciences.)

Objectives: To identify priority medicines policy issues, including the 'use' and 'access to medicines' in Qatar., Design: In this qualitative study, general inductive method was used and semi-structured exploratory interviews conducted., Setting: Stakeholders from a broad range of academic and healthcare practitioners in Qatar., Participants: Exploratory, semi-structured interviews were conducted with 21 stakeholders throughout Qatar. The inclusion criteria include (a) participants working or involved in the Qatar's healthcare system, (b) participants having experience or working knowledge of medicine policy documents, different facets of it, use of medicines and access to medicines, (c) as well as participants well versed in the English language. It was intended to cover stakeholders from a broad range of healthcare and policy institutions in Qatar., Primary and Secondary Outcome Measures: All participants were involved in semi-structured, audio-recorded interviews, which were then transcribed verbatim, coded into NVivo V.12 and followed by thematic analysis to identify the common themes. Perceptions, experiences and opinions regarding Qatar's medicines policy issues were recorded., Results: This study found challenges related to the availability of pharmaceuticals in Qatar, including medicines registration process. There is no comprehensive national medicines policy in Qatar, however, there are a number of rules, regulations, policies and procedures in place. The community pharmacy services provided are mostly 'traditional' with less emphasis on pharmacists' extended roles and/or cognitive services. The study identifies several areas for improvement including extending the role of the pharmacist, improve the prescribing of antibiotics, medicines compliance and counselling for consumers, pharmacovigilance, implementation of generic medicines policies, as well as the need for a national health record database., Conclusions: The findings suggest that in the last 20 years, Qatar has moved towards advancing healthcare; however, there are gaps and opportunities. The strategies need to be developed to resolve access to medicines issues, the priority being medicines registration, import and so on. With the rise of chronic diseases and a growing population, there is also a need to work to improve medicines adherence among patients.A national medicines policy should be developed through a consultative broad-based process in which prescribers, physicians, pharmacists and healthcare professionals be given a chance to contribute., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Mitral regurgitation (MR) following acute myocardial infarction (AMI) worsens prognosis and reports of prevalence vary significantly. The objective was to determine prevalence, risk factors, and outcomes related to MR following AMI. We identified 1000 consecutive patients admitted with AMI in 2016/17 treated by percutaneous coronary intervention with pre-discharge transthoracic echocardiography. MR was observed in 294 of 1000 (29%), graded as mild (n = 224 [76%]), moderate (n = 61 [21%]) and severe (n = 9 [3%]). Compared with patients without MR, patients with MR were older (70 ± 12 vs 63 ± 13 years; p <0.001), with worse left ventricular ejection fraction (LVEF) (52 ± 15% vs 55 ± 11%; p <0.001) and creatinine clearance (69 ± 33 ml/min vs 90 ± 39 ml/min; p <0.001). They also had higher rates of hypertension (64% vs 55%; p = 0.012), heart failure (3.4% vs 1.1%; p = 0.014), previous MI (28% vs 20%; p = 0.005) and severe flow-limitation in the circumflex (50% vs 33%; p <0.001) or right coronary artery (51% vs 42%; p = 0.014). Prevalence and severity of MR were unaffected by AMI subtype. Revascularization later than 72 hours from symptom-onset was associated with increased likelihood of MR (33% vs 25%; p = 0.036) in patients with non-ST elevation myocardial infarction (NSTEMI). After a mean of 3.2 years, 56 of 288 (19%) patients with untreated MR died. Age and LVEF independently predicted mortality. The presence of even mild MR was associated with increased mortality (p = 0.029), despite accounting for confounders. In conclusion, MR is observed in over one-quarter of patients after AMI and associated with lower survival, even when mild. Prevalence and severity are independent of MI subtype, but MR was more common with delayed revascularization following NSTEMI., (Copyright © 2021 Elsevier Inc. All rights reserved.)