Search

A case study is presented to show how Bell Labs Security Framework can be used to enhance the International Organization for Standardization/International Electrotechnical Commission ( ISO /IEC) 27001series in implementing an organization's information security management system.

The main goal of network security is concerned with securing individual components as well as preventing unauthorized access to network services. The Lucent Network Security Framework is presented, which provides a comprehensive, top-down, end-to-end perspective on network elements, services, and applications including detecting, correcting, and preventing security vulnerabilities.

A system called applications exchange (AE) serves as a means to describe a new concept for managing applications and services for end users (EU), service providers (SP), content providers and application developers.

A new technology, called dynamic virtual private network (D-VPN), is described. D-VPN enables service providers to offer new value-added services in an efficient manner.

Severe mitral regurgitation (MR) is often a complicating factor in patients with heart failure with reduced ejection fraction (HFrEF) presenting with acute cardiogenic shock (CS). Early mechanical circulatory support (MCS) with percutaneous modalities such as veno-arterial (VA) ECMO and Impella allow for hemodynamic stabilization and bridging to durable therapy or recovery. This case report describes a HFrEF patient in cardiogenic shock with MR initially stabilized with combined VA ECMO and Impella CP (ECPELLA) support, and later transitioned to Impella 5.5 therapy that enabled successful transcatheter edge-to-edge repair (TEER) of the mitral valve and eventual recovery. A 64-year-old with HFrEF was admitted to an outside hospital with HF exacerbation and recurrent ventricular tachyarrhythmias. He acutely decompensated into refractory CS despite a combination of vasoactive infusions and femoral Impella CP support. Our rapid ECMO deployment (RED) team mobilized and cannulated the patient on site. Two days later, we exchanged an Impella CP to an axillary Impella 5.5 to facilitate ECMO weaning. At that time, his transesophageal echocardiogram revealed severe MR of mixed functional and primary etiology due to a flail A2/A3 anterior leaflet and tethered posterior leaflet resulting in a wide coaptation gap. He was successfully decannulated from peripheral VA ECMO two days later. Although his cardiac function stabilized with Impella 5.5 and an inotrope, he was unable to be weaned from MCS due to MR. Evaluations by heart failure, structural heart, and cardiac surgery recommended against durable LVAD and conventional surgery, but felt his mitral valve was amenable to percutaneous repair. He eventually underwent successful TEER with 2 XTW clips to A2-P2 segment and 1 XT clip to the A2-P2. Residual mitral valve gradient was 4 mmHg and left atrial pressure went from 46/61/26 to 23/28/20 mmHg. Patient was weaned post-procedure from Impella 5.5 and was discharged to in-patient rehab. This case is one of the first descriptions of successful MitraClip repair while on Impella 5.5 support, specifically, and highlights the vital importance of a collaborative heart team approach in the management of patients with cardiogenic shock. [ABSTRACT FROM AUTHOR]

Objective: Prolactinomas-pituitary tumors that overproduce prolactin-can cause various troublesome symptoms. Dopamine agonists (DAs) reduce prolactin production in the prolactin pathway, making them the first-line treatment for prolactinomas. However, the main side effect of DA treatment, hyperdopaminergia, is an explicit etiology for psychiatric side effects. Psychiatric conditions are often treated with dopamine antagonists, which can induce hyperprolactinemia. This presents a challenge for patients with both a prolactinoma and a preexisting psychiatric condition, as treatment of one condition could worsen the other. This review seeks to identify an adequate therapeutic regimen for patients with coexisting prolactinomas and psychiatric symptoms., Methods: This review examined PubMed citations from 1960 to 2023 published in English and involving human subjects. Case reports, case series, and cohort studies involving patients with concomitant prolactinomas and psychiatric symptoms, as validated by brain imaging, serologic prolactin levels, and medical history or chart reports of psychiatric symptoms, were included., Results: Thematic analysis included 23 reports involving 42 participants; 27 of the 42 patients experienced a significant reduction in prolactin levels and psychiatric symptoms (64%). Treatment of those 42 patients included discontinuing or altering antipsychotic/dopamine antagonist therapy or discontinuing DA therapy to reduce psychiatric symptoms, with surgery or radiation postpharmacotherapy as a last-line strategy. However, in some cases (reported in Tables 2 to 4), either psychiatric or prolactin-related symptoms recurred despite adjustment., Conclusions: Clinicians may find it beneficial to prioritize specific antipsychotics (aripiprazole, olanzapine, ziprasidone, or clozapine) over others (risperidone, thioridazine, thiothixene, and remoxipride). Discontinuing DA medication at least periodically until the patient's condition improves may also be advisable. If these 2 initial approaches do not yield a significant improvement in symptom management, surgery or radiation therapy may be considered. As patients may respond differently to these therapies, our study still recommends a patient-centered approach., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)

Objective: To examine recent literature and determine common clinical risk factors between antecedent traumatic brain injury (TBI) and the following development of opioid misuse and provide a framework for clinical identification of at-risk subjects and evaluate potential treatment implications within this association., Design: A comprehensive systematic literature search of PubMed was conducted for articles between 2000 and December 2022. Studies were included if the human participant had any head trauma exposure and any chronic opioid use or dependence. After eligibility criteria were applied, 16 studies were assessed for thematic trends., Results: Opioid use disorder (OUD) risks are heightened in cohorts with head trauma exposed to opioids while in the hospital, specifically with tramadol and oxycodone. Chronic pain was the most common predictor of long-term OUD, and continuous somatic symptoms associated with the TBI can lead to long-term opioid usage. Individuals who present with coexisting psychiatric conditions pose significantly more risk associated with a higher risk of long-term opioid use., Conclusion: Findings indicate that therapists and clinicians must consider a risk profile for persons with TBI and follow an integrated care approach to account for mental health, prior substance misuse, presenting somatic symptoms, and current medication regimen during evaluation.

Myelofibrosis (MF), Myeloproliferative neoplasms (MPNs), and MDS/MPN overlap syndromes have a broad range of clinical presentations and molecular abnormalities, making their diagnosis and classification complex. This paper reviews molecular aberration, epigenetic modifications, chromosomal anomalies, and their interactions with cellular and other immune mechanisms in the manifestations of these disease spectra, clinical features, classification, and treatment modalities. The advent of new-generation sequencing has broadened the understanding of the genetic factors involved. However, while great strides have been made in the pharmacological treatment of these diseases, treatment of advanced disease remains hematopoietic stem cell transplant.

Objective: To study the effect of the COVID-19 pandemic on the early termination of ophthalmology clinical trials., Methods: On June 10, 2022, we searched ClinicalTrials.gov and identified clinical trials pertaining to eye diseases. We included trials last updated between January 1, 2020 and June 8, 2022, as ones possibly impacted by the pandemic. We selected all interventional trials in any stage and country that were "recruiting," "active, not recruiting," "enrolling by invitation," "suspended," "terminated," "completed," or "withdrawn" and excluded trials that had been completed or discontinued before 2020, had incomplete data, trials in which the eye was not the primary focus of the trial (e.g., Chediak-Higashi syndrome, myasthenia gravis). The following trial-level characteristics were collected: location, trial status, enrollment count, ocular condition, sponsors, intervention purpose, trial phase (I-IV), randomization, number of arms, and reasons for discontinuation. In addition to calculating descriptive statistics, we assessed whether trial characteristics differed between ophthalmology clinical trials canceled due to COVID-19 and those canceled for other reasons., Results: Following the screening, 2280/12,679 (18%) ophthalmology clinical trials were retained. Of these, 142 (6.2%) were discontinued between January 1, 2020 and June 8, 2022. Moreover, 34 out of 142 (23.9%) ophthalmology clinical trials were discontinued due to COVID-19. These trials were more likely to be sponsored by academic medical centers (26/34, 76.5% vs 57/108, 52.8%, p  = 0.03) and were not assigned to a specific study phase, indicating they were not investigational new drugs (22/34, 64.7% vs 46/108 42.6%, p  = 0.003)., Conclusions: COVID-19-related trial discontinuations were more likely to be reported by academic medical centers and associated with trials investigating fully approved drugs, medical devices, procedures, diagnostic imaging, and behavioral changes. Further investigation of these characteristics may lead to a more robust and resilient understanding of the causes of early termination of these clinical trials., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2023.)

Emerging research documents the health benefits of having highly educated adult offspring. Yet less is known about whether those advantages vary across racial groups. This study examines how offspring education is tied to parents' dementia risk for Black and White parents in the United States. Using data from the Health and Retirement Study, findings suggest that children's education does not account for the Black-White gap in dementia risk. However, results confirm that parental race moderates the relationship between children's education and dementia risk and that the association between children's education and parents' dementia risk is strongest among less-educated parents. Among less-educated parents, higher levels of children's attainment prevent the risk of dementia onset for Black parents, but low levels of offspring schooling increase dementia risk among White parents. The study highlights how offspring education shapes the cognitive health of social groups differently and points to new avenues for future research.

Many antipsychotic (AP) medications work by reducing dopamine levels. As hyperdopaminergia is known to cause psychosis, antipsychotics work to relieve these symptoms by antagonizing dopamine receptors and lowering dopamine levels. Dopamine is also a known negative modulator of the prolactin pathway, which allows for drug agents like dopamine agonists (DAs) to be incredibly effective in managing tumors that secrete excess prolactin (prolactinomas). While the effects of DAs on prolactinoma size and growth have been studied for decades, the effects of APs on prolactinoma size remain to be seen. We hope to investigate the effects of APs on prolactinomas by conducting a thorough PubMed search, including patients with diagnosed prolactinoma on concurrent AP therapy. Our search led to 27 studies with a total of 32 patients. We identified themes regarding seven antipsychotics: risperidone, haloperidol, amisulpride, thioridazine, aripiprazole, olanzapine, and clozapine. Risperidone, haloperidol, amisulpride, and thioridazine caused a significant increase in prolactin in most cases where they were used, and prolactin decreased after their discontinuation. For example, risperidone discontinuation resulted in a decrease in prolactin levels by an average of 66%, while haloperidol, amisulpride, and thioridazine discontinuation lowered prolactin by an average of 82%, 72%, and 89.7%, respectively. However, there were some exceptions in regard to risperidone, haloperidol, and thioridazine, where prolactin levels were not as severely affected. Aripiprazole, olanzapine, and clozapine all had significant reductions in prolactin levels when patients were switched from another antipsychotic, such as risperidone or haloperidol. The average percent decrease in prolactin when switched to aripiprazole was 67.65%, while it was 54.16% and 68% for olanzapine and clozapine, respectively. The effect of individual antipsychotics on prolactinoma size was difficult to ascertain, as imaging was not obtained (or indicated) after every antipsychotic switch, and many patients were taking dopamine agonists concurrently. Therefore, it would be difficult to ascertain which factor affected size more. Also, some patients received surgery or radiotherapy, which completely negated our ability to make any assertions about the effects of certain pharmacological agents. Although it is difficult to ascertain the role that antipsychotic medications play in the formation of prolactinoma, we have found that the cessation of certain antipsychotic medications may lead to a reduction in prolactin levels and possibly the presence of a measurable prolactinoma., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Durrani et al.)

Background: Physicians have increasingly adopted Twitter as a discussion and distribution platform for oncology research. While the influence of financial conflicts of interests (FCOI) on medical research is well documented, their role in the dissemination of research on social media platforms is not well known. In this study, we sought to evaluate the FCOIs of physicians followed by the top three oncology journals on Twitter., Materials and Methods: We used the Open Payments Search Tool ( https://openpaymentsdata.cms.gov ) to assess FCOIs between 2016 and 2021 of United States (US) physicians followed by three oncology journals (Journal of Clinical Oncology, The Lancet Oncology, and Annals of Oncology) on Twitter., Results: Of 1914 Twitter accounts followed by the top three oncology journals on Twitter, 547 (28.6%) belonged to US physicians. Of these, 463 (84.6%) received general payments between 2016 and 2021. After excluding 30 US physicians currently in residency or fellowship, this percentage increased to 88.2% (n = 456/517). Combined, the median (interquartile range) general payment amount was $8100 ($200-90,000). Additionally, over $42 million in general payments were made between 2016 and 2021., Conclusion: Our findings offer insight on FCOIs between oncology journals and US physicians on Twitter. These findings may serve as the foundation for future research regarding optimal medical journal conduct on social media platforms., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Objective: To review the current literature surrounding the relationship between adverse childhood experiences (ACEs) and opioid use disorder (OUD) to guide clinical identification of high-risk individuals and assess treatment implications., Design: A PubMed search was conducted from the year 2000 to 2022 using a series of primary and secondary search terms. A total of 21,524 unique results were screened for relevancy to ACEs and OUDs. After excluding unrelated articles, a total of 48 articles were included in this systematic review., Results: Increased frequency of ACEs was directly related to increased risk of OUD and lower onset age. ACEs were also associated with OUD severity. ACEs linked to OUD included childhood neglect, emotional abuse, physical abuse, and sexual abuse. Additionally, dysfunctional childhood home environment, female gender, and psychiatric/behavioral comorbidities increased the risk of OUD, while resilience was found to be a protective factor. Multiple biochemical markers were associated with both ACEs and OUD., Conclusions: Children experiencing multiple ACEs should be the target of preventative intervention by medical professionals. Clinicians should include ACEs in their opioid misuse risk assessment. High incidence of co-occurring psychiatric/behavioral disorders provides multiple treatment avenues for patients with OUD. Resilience, along with being therapy target, should be fostered early in the life course. Incorporation of family members may improve opioid abuse treatment outcomes. Future research should focus on interventions interrupting the progression of ACEs to OUD along with proposed biochemical pathways.

Background: Outcome of temporal lobe epilepsy associated with hippocampal sclerosis (TLE-HS) has rarely been evaluated exclusively., Objective: To compare long-term seizure freedom, resolution of epilepsy, and perceived life changes in patients with drug-resistant TLE-HS who underwent surgery vs those who opted for best medical management., Methods: In this retrospective longitudinal study, 346 patients with TLE-HS who underwent surgery were compared with 325 who received best medical management. Predictors for long-term remission, resolution of epilepsy, and seizure recurrence were analyzed., Results: The duration of follow-up ranged from 3-18 (mean 12.61) years. The average age of study population was 28.54 ± 12.27 years with 321 (47.8%) women. Age at onset of epilepsy (11.84 ± 8.48 vs 16.29 ± 11.88; P ≤ .001) was lower, and duration of epilepsy (15.65 ± 9.33 vs 12.97 ± 11.44; P < .001) was higher in the surgery group. Seizure freedom at 3 (81.8 vs 19.0%; P < .001), 5 (73% vs 16.1%; P < .001), and 10 years (78.3% vs 18.5; P < .001) and resolution of epilepsy (30.5% vs 0.6%; P < .001) was higher in the surgery group. The overall perceived life changes score was higher in the surgery group (80.96 ± 25.47 vs 66.24 ± 28.13; P < .001). At long-term follow-up (≥10 years), the presence of an aura was the strongest predictor for resolution of epilepsy (β: 2.29 [95% CI; 1.06-4.93]; P = .035), whereas acute postoperative seizures (APOS) (β: 6.06 [95% CI 1.57-23.42]; P < .001) and an abnormal postoperative EEG (β: 0.222 [95% CI 0.100-0.491]; P < .001) were predictors of persistent seizures. Seizure freedom both at 3 and 5 years predicted seizure freedom at 10 years., Conclusion: Surgery for drug-resistant TLE-HS was associated with higher rate of long-term seizure-freedom, resolution of epilepsy, and reduction of anti-seizure medications with improvement in perceived life changes compared with best medical management. The presence of an aura was predictor for resolution of epilepsy while APOS and an abnormal postoperative EEG were predictors of persistent seizures., (Copyright © Congress of Neurological Surgeons 2023. All rights reserved.)

Since the COVID-19 pandemic started, there have been changes in clinical practice to limit transmission, such as switching from face-to-face to remote consultations. We aimed to study the influence of technical factors on remote consultations in our experience during the pandemic. 12 clinicians completed data collection forms after consultations, recording the technology used (video vs phone); technical problems encountered; discharge or subsequent appointment status; and technical aspects of the consultation process using 0-10 numerical rating scales (NRS) (Time Adequate; Relevant History; Physical Exam; Management Plan; and Communication Quality). Data were collated on an MS Access 2016 database and transferred to SPSS version 25 for statistics. Of 285 forms valid for analysis, 48 (16.8%) had video consultations. Of 259 forms with technical problems data recorded, 48 (18.5%) had a technical problem. Video patients were significantly younger (mean 49.3 vs 61.3 years, p < 0.001), had higher scores on Physical Exam scale (mean 4.0 vs 2.6, p < 0.001), but had no significant difference on Management Plan scale (7.3 vs 7.2). Those with technical problems were more common among video consultations (33.3% vs 15.4%, p = 0.005), had lower scores on Time Adequate scale (7.7 vs 8.7, p < 0.001) and Communication Quality scale (7.1 vs 8.4, p < 0.001), but had no significant difference on Management Plan scale (7.3 vs 7.2). The strongest correlation of Management Plan scale was with Communication Quality scale (Rho = 0.64). Of the NRS, a 1-point reduction in scores on Management Plan scale was the strongest predictor of subsequent face-to-face appointment (Odds Ratio 1.88, 95% CI 1.58-2.24), and this remained an independent predictor in multivariate analysis (adjusted OR 1.90, 1.57-2.31). Having a technical problem was inversely associated with the outcome of a subsequent face-to-face appointment (OR 0.17, 0.04-0.74), and this remained significant after adjustment for Management Plan in multivariate analysis (adjusted OR 0.09, 0.12-0.54). Video patients were younger suggesting a preference for video amongst younger patients. Although technical problems were more common with video, having a video consultation or a technical problem had no significant impact on management plan. Scoring lower on the Management Plan scale was the strongest predictor of, and independently associated with, requesting a subsequent face-to-face appointment. The inverse relationship of technical problems with subsequent face-to-face appointment request will need validation in further studies., (© 2022. The Author(s).)

Whole-genome sequencing (WGS) has recently been used to investigate acquisition of Mycobacterium abscessus. Investigators have reached conflicting conclusions about the meaning of genetic distances for interpretation of person-to-person transmission. Existing genomic studies were limited by a lack of WGS from environmental M. abscessus isolates. In this study, we retrospectively analyzed the core and accessory genomes of 26 M. abscessus subsp. abscessus isolates collected over 7 years. Clinical isolates ( n  = 22) were obtained from a large hospital-associated outbreak of M. abscessus subsp. abscessus , the outbreak hospital before or after the outbreak, a neighboring hospital, and two outside laboratories. Environmental M. abscessus subsp. abscessus isolates ( n  = 4) were obtained from outbreak hospital water outlets. Phylogenomic analysis of study isolates revealed three clades with pairwise genetic distances ranging from 0 to 135 single-nucleotide polymorphisms (SNPs). Compared to a reference environmental outbreak isolate, all seven clinical outbreak isolates and the remaining three environmental isolates had highly similar core and accessory genomes, differing by up to 7 SNPs and a median of 1.6% accessory genes, respectively. Although genomic comparisons of 15 nonoutbreak clinical isolates revealed greater heterogeneity, five (33%) isolates had fewer than 20 SNPs compared to the reference environmental isolate, including two unrelated outside laboratory isolates with less than 4% accessory genome variation. Detailed genomic comparisons confirmed environmental acquisition of outbreak isolates of M. abscessus subsp. abscessus . SNP distances alone, however, did not clearly differentiate the mechanism of acquisition of outbreak versus nonoutbreak isolates. We conclude that successful investigation of M. abscessus subsp. abscessus clusters requires molecular and epidemiologic components, ideally complemented by environmental sampling.