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Importance: Perineal wound complications are common following abdominoperineal resection for rectal cancer and might have substantial and long-lasting implications for patients' recovery., Objective: To evaluate the superiority of gluteal turnover flap closure compared to primary closure in patients with rectal cancer undergoing abdominoperineal resection., Design, Setting, and Participants: The BIOPEX-2 study was an investigator-initiated, parallel-group, multicenter randomized clinical trial conducted at 19 centers in the Netherlands and the UK between June 2019 and November 2023, including 12 months of follow-up. Data analysis was performed from October 2023 to December 2023. Independent perineal wound assessors were masked to the type of closure. Eligibility criteria were resection of rectal cancer by abdominoperineal resection, aged 18 years or older, and ability to complete follow-up. In modified intention-to-treat analyses, patients were assigned to either primary closure or gluteal turnover flap closure., Intervention: Gluteal turnover flap closure started with a half-moon-shaped perineal skin island that was incised and deepithelialized. Subsequently, the subcutaneous fat was dissected toward the gluteal fascia, after which the dermis was sutured to the contralateral levator remnant, followed by midline closure., Main Outcomes and Measures: The primary outcome was uncomplicated wound healing at 30 days postoperatively, defined as a Southampton wound score less than 2. Secondary outcomes included presacral abscess formation and wound-related readmissions., Results: A total of 175 patients were randomized, but 7 did not undergo abdominoperineal resection and 3 withdrew consent. In the modified intention-to-treat analyzes, 86 patients were assigned to primary closure and 79 patients to gluteal turnover flap closure. Of these 165 patients, mean (SD) patient age was 67 (10) years, and 57 patients (34.5%) were female. Uncomplicated perineal wound healing was present in 49 of 82 patients (60%) after primary closure, which did not significantly differ from flap closure (42 of 76 patients [55%]). Presacral abscess developed significantly more often after primary closure than flap closure (19 of 86 patients [22%] vs 7 of 78 patients [9%]; P = .02), and more percutaneous presacral abscess drainage was performed in the control group (primary closure) (7 patients [8%] vs 1 patient [1%]; P = .04). Perineal wound-related readmission occurred in 18 patients (21%) after primary closure and in 10 patients (13%) after gluteal flap closure (P = .17)., Conclusion and Relevance: In this parallel-group, multicenter randomized clinical trial, gluteal turnover flap closure did not show superiority over primary closure in 30-day perineal wound healing after abdominoperineal resection for rectal cancer. However, flap closure significantly reduced presacral abscess formation., Trial Registration: ClinicalTrials.gov Identifier: NCT04004650.

Background: Intralesional corticosteroid administration (ICA) is a first-line keloid treatment. However, it faces significant variability in current clinical and scientific practice, which hinders comparability of treatment results., Objectives: The aim of the study was to reach consensus on different aspects of ICA using hypodermic needles in keloids among an international group of dermatologists and plastic surgeons specialized in keloid treatment to provide consensus-based clinical treatment recommendations for all physicians treating keloids., Methods: The keloid expert panel of 12 dermatologists and 11 plastic surgeons rated 30 statements. Two online e-Delphi rounds were held, both with a response rate of 100%. Fifteen (65%) keloid experts participated in the final consensus meetings. Consensus was defined as ≥ 75% of the participants choosing agree or strongly agree on a 7-point Likert scale., Results: Consensus was reached on treatment goals, indication for ICA, triamcinolone acetonide (TAC) 40 mg/mL as the preferred corticosteroid administered at a maximum of 80 mg per month and at intervals of 4 weeks, minimizing pain during ICA, the use of 1 mL syringes and 25 or 27 Gauge needles, blanching as endpoint of successful infiltration, caution of not injecting subcutaneously, and the option of making multiple passes in very firm keloids prior to infiltration. Consensus could not be reached on TAC dosing, methods of prior local anesthesia, and location of injection., Conclusions: This e-Delphi study provides important clinical treatment recommendations on essential aspects of ICA in keloids. By implementing these recommendations, uniformity of ICA in keloid treatment will increase and better treatment results may be achieved., (© 2024. The Author(s).)

Background: The efficacy of keloid treatment in randomized studies is highly variable. However, no systematic review has been performed to evaluate the effect of different keloid properties on treatment efficacy., Objective: To identify clinically relevant keloid properties that may influence treatment efficacy., Materials and Methods: An electronic database search was conducted. Two reviewers independently selected randomized controlled trials (RCTs) and performed a methodologic quality assessment using the Cochrane risk-of-bias 2.0 tool., Results: One thousand five hundred twenty studies were screened, and 16 RCTs, involving 1,113 patients, were included. The authors found lower efficacy in older keloids ( n = 3), keloids located on the chest, extremities, pinna, and shoulder ( n = 3), larger keloids ( n = 2), lower baseline Vancouver Scar Scale score ( n = 1), and keloids with history of recurrence ( n = 1). Overall, most studies had a high risk of bias., Conclusion: Only a minority of studies specifically addressed keloid properties, which makes comparisons between studies challenging. The authors' results suggest that keloid location, duration prior to treatment, size, history of recurrence, and severity are clinically relevant keloid properties that affect treatment efficacy. Further studies are crucial to corroborate the authors' findings, establish a clinically relevant keloid classification, and ultimately develop an evidence-based treatment algorithm that takes these properties into account., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Society for Dermatologic Surgery, Inc.)

Intralesional corticosteroid injections are a first-line treatment for keloids; yet clinical treatment results are highly variable and often suboptimal. Variation in triamcinolone acetonide (TAC) biodistribution may be an important reason for the variable effects of TAC treatment in keloids. In this exploratory study we investigated the biodistribution of TAC in keloids and normal skin using different drug delivery techniques. Fluorescent-labeled TAC suspension was administered into keloids and normal skin with a hypodermic needle and an electronic pneumatic jet injector. TAC biodistribution was represented by the fluorescent TAC volume and 3D biodistribution shape of TAC, using a 3D-Fluorescence-Imaging Cryomicrotome System. Twenty-one keloid and nine normal skin samples were analyzed. With needle injections, the mean fluorescent TAC volumes were 990 µl ± 479 in keloids and 872 µl ± 227 in normal skin. With the jet injector, the mean fluorescent TAC volumes were 401 µl ± 252 in keloids and 249 µl ± 67 in normal skin. 3D biodistribution shapes of TAC were highly variable in keloids and normal skin. In conclusion, TAC biodistribution in keloids is highly variable for both needle and jet injection. This may partly explain the variable treatment effects of intralesional TAC in keloids. Future research is needed to confirm this preliminary finding and to optimize drug delivery in keloids., (© 2024. The Author(s).)

Introduction: Traditional on-site missions of plastic surgeons from "high-income countries" in "low- and middle-income countries" are often limited in time and lack proper follow-up. Regular digital collaboration could lead to a more impactful and durable exchange of knowledge for plastic surgeons and residents in both settings., Aims: The aim of this study was to evaluate the satisfaction of the first twelve months of weekly digital meetings, explore advantages/disadvantages, and to provide tools for similar initiatives., Methods: Weekly meetings started from August 2021. An encrypted digital connection allowed residents and plastic surgeons from Uganda and the Netherlands to discuss cases for educational purposes, where treatment options were considered. After twelve months, a survey was sent to participants from both countries to indicate the meetings' strengths, weaknesses, and possible improvements., Results: A total of 18 participants responded to the questionnaire (ten plastic surgeons, six residents, and two researchers). The strengths of the meetings were the accessibility of the meetings, knowledge exchange and practice for residents' final exams. Possible improvements included having a clear format for patient discussion, a session moderator and better internet connectivity. Moreover, a database to assess the impact of the given intervention on the patient cases by evaluating postoperatively (e.g. three months), could further improve clinical care., Conclusions: Virtual patient discussions subjectively contributed to medical education at both locations. Improved digital infrastructure and a collaborative database could further maximize learning capacity. Furthermore, digital proctoring is a promising way to establish sustainable collaborations between high- and low-resource countries., Competing Interests: Declaration of Competing Interest All authors declare that they have no conflicts of interest., (Copyright © 2023 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Background: Intralesional corticosteroid administration (ICA) is a first-line therapy in keloid treatment. However, its clinical results are still highly variable and often suboptimal. Treatment results may strongly be influenced by various ways of ICA., Objective: To explore the prevailing practice of ICA in keloid treatment among dermatologists and plastic surgeons in the Netherlands., Methods: The survey was constructed based on a scoping review on ICA in keloid treatment. Members of the Dutch Society for Plastic surgery and the Dutch Society for Dermatology and Venereology were asked to participate., Results: One hundred and thirty-six responses were obtained. One hundred and thirty (95.6%) participants used triamcinolone acetonide. The majority (54.7%) did not use local anesthesia for pain reduction. Reported corticosteroid dosing that one would inject in one specific keloid differed by a factor of 40. Treatment intervals varied from 1 week to more than 8 weeks. The keloid center was most often injected (46.9%), followed by subepidermal (18.0%)., Conclusions: A wide variety in ICA for keloids is noted among dermatologists and plastic surgeons, even in a limited geographic region and when evidence points toward an optimal way of treatment. Future studies and better implementation of existing evidence may reduce variation in ICA and optimize its treatment results.

Background: Chronic pelvic sepsis mostly originates from complicated pelvic surgery and failed interventions. This is a challenging condition that often requires extensive salvage surgery consisting of complete debridement with source control and filling of the dead space with well-vascularized tissue., Objective: This study aimed to describe the outcomes of gluteal fasciocutaneous flaps for the treatment of secondary pelvic sepsis., Design: Retrospective single-center cohort study., Settings: Tertiary referral center., Patients: Patients who underwent salvage surgery for secondary pelvic sepsis between 2012 and 2020 using a gluteal flap were included in this study., Main Outcome Measures: Percentage of complete wound healing., Results: In total, 27 patients were included, of whom 22 underwent index rectal resection for cancer and 21 had undergone (chemo)radiotherapy. A median of 3 (interquartile range, 1-5) surgical and 1 (interquartile range, 1-4) radiological interventions preceded salvage surgery during a median period of 62 (interquartile range, 20-124) months. Salvage surgery included partial sacrectomy in 20 patients. The gluteal flap consisted of a V-Y flap in 16 patients, superior gluteal artery perforator flap in 8 patients, and a gluteal turnover flap in 3 patients. Median hospital stay was 9 (interquartile range, 6-18) days. During a median follow-up of 18 (interquartile range, 6-34) months, wound complications occurred in 41%, with a reintervention rate of 30%. The median time to wound healing was 69 (interquartile range, 33-154) days, with a complete healing rate of 89% at the end of follow-up., Limitations: Retrospective design and heterogeneous patient population., Conclusions: In patients undergoing major salvage surgery for chronic pelvic sepsis, the use of gluteal fasciocutaneous flaps is a promising solution because of the high success rate, limited risks, and relatively simple technique. See Video Abstract at http://links.lww.com/DCR/C160 ., Reconstruccin Con Colgajo Fasciocutneo Glteo Despus De Una Ciruga De Rescate Por Sepsis Plvica: ANTECEDENTES:La sepsis pélvica crónica esta causada principalmente por cirugías pélvicas complicadas e intervenciones fallidas. Esta es una condición desafiante que a menudo requiere una cirugía de rescate extensa que consiste en un desbridamiento completo controlando el orígen infeccioso y rellenando el espacio muerto con tejido bien vascularizado, como por ejemplo un colgajo de tejido autólogo. La pared abdominal (colgajo de recto abdominal) o la pierna (colgajo de gracilis) se utilizan principalmente como sitios donantes para esta indicación, mientras que los colgajos glúteos pueden ser alternativas atractivas.OBJETIVO:Describir los resultados de los colgajos fasciocutáneos glúteos en el tratamiento de la sepsis pélvica secundaria.DISEÑO:Estudio de cohortes retrospectivo en un solo centro.AJUSTES:Centro de referencia terciario.PACIENTES:Todos aquellos que se sometieron a cirugía de rescate por sepsis pélvica secundaria entre 2012 y 2020 utilizando un colgajo fasciocutáneo glúteo.PRINCIPALES MEDIDAS DE RESULTADO:El porcentaje de cicatrización completa de la herida.RESULTADOS:En total, se incluyeron 27 pacientes, de los cuales 22 fueron sometidos a resección rectal por cáncer indicada y 21 pacientes que habían recibido (quimio)radioterapia. Una mediana de tres (RIC 1-5) intervenciones quirúrgicas y una (RIC 1-4) intervenciones radiológicas precedieron a la cirugía de rescate durante una mediana de 62 (RIC 20-124) meses.La cirugía de rescate incluyó una resección parcial del sacro en 20 pacientes. El colgajo fasciocutáneo glúteo consistió en la confección de un colgajo en V-Y en 16 pacientes, un colgajo incluyendo la perforante de la arteria glútea superior en 8 y un colgajo de rotación de músculo glúteo en 3 pacientes.La mediana de estancia hospitalaria fue de nueve (RIC 6-18) días. Durante una mediana de seguimiento de 18 (IQR 6-34) meses, se produjeron complicaciones de la herida en el 41%, con una tasa de reintervención del 30%.La mediana de tiempo hasta la cicatrización de la herida fue de 69 (IQR 33-154) días con una tasa de cicatrización completa del 89 % al final del seguimiento cicatricial.LIMITACIONES:Diseño retrospectivo y población heterogénea de pacientes.CONCLUSIONES:En pacientes sometidos a cirugía mayor de rescate por sepsis pélvica crónica, el uso de colgajos fasciocutáneos glúteos es una solución prometedora debido a la alta tasa de éxito, los riesgos limitados y la técnica relativamente simple. Video Resumen en http://links.lww.com/DCR/C160 . (Traducción-Dr. Xavier Delgadillo )., (Copyright © The ASCRS 2023.)

Background: Most breast reconstructions are implant-based and can be performed either in a one-stage, direct-to-implant or in a two-stage, expander-implant-based reconstruction. The objective of this systematic review is to compare the safety and patient satisfaction of the two reconstruction approaches., Methods: A literature search was conducted on 27 September 2022 using various databases. Studies comparing one-stage and two-stage implant reconstructions and reporting the following outcomes were included: patient satisfaction, aesthetics, complications, and/or costs. Reviews, case reports, or series with less than 20 patients and letters or comments were excluded. Comparisons were made between the one-stage reconstruction with and without acellular dermal matrix (ADM) and two-stage implant-based breast reconstruction groups. The data extracted from all articles were analysed using random-effects meta-analyses., Results: Of the 1381 records identified, a total of 33 articles were included, representing 21529 patients. There were no significant differences between the one-stage and two-stage groups, except for the costs. The one-stage operation without ADM had lower costs than the two-stage operation without ADM, although the use of an ADM substantially increased the price of the operation to more than a two-stage reconstruction., Discussion: Equal patient satisfaction, aesthetic outcomes, and complication rates with lower costs justify one-stage breast reconstruction in carefully selected patients. This review shows that there is no evidence-based superior surgical approach. Future research should focus on the costs of the ADM versus an additional stage and patient-reported outcomes., Competing Interests: Declaration of Competing Interest There is no conflict of interest declared., (Copyright © 2023 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Background: In shared decision-making (SDM), patients and healthcare professionals (HCPs) reach a joint clinical decision based on the best available evidence and the patient's preferences. SDM seems particularly valuable in plastic surgery, as often multiple treatment options are available. This cross-sectional online survey study aimed to assess HCPs' views and knowledge about SDM, identify facilitators and barriers of SDM, and determine specific requirements for SDM within plastic surgery., Methods: Participants were HCPs working in plastic surgery in the Netherlands. Participant characteristics, SDM knowledge, perceived facilitators and barriers, and requirements were assessed using a custom-made online survey. Two researchers thematically analyzed qualitative data., Results: We received 124 responses (with a response rate of 23%). Most respondents were attending plastic surgeons (79%), and 60% had more than 10 years of experience. Almost all respondents considered SDM important (91%), and most (78%) indicated that they applied SDM during consultations. However, only 15% of the HCPs showed a comprehensive understanding of the principle of SDM. Sufficient time, available sources of information (on treatment options and SDM), and decision support tools were identified as important requirements for SDM., Conclusions: Despite the positive attitudes toward SDM, there is a clear need for SDM training of HCPs, uniform sources of information and guidelines, and improved awareness and availability of decision support tools. National plastic surgery societies can play a crucial role in improving SDM-related knowledge, the availability of information and decision support tools, and the implementation of SDM in the field of plastic surgery., Competing Interests: Declaration of Competing Interest None declared., (Copyright © 2023 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Background: Several therapeutic options are available for the treatment of keloids, but it remains unclear which treatment options are most commonly used by practitioners., Objective: To explore the prevailing treatment for different keloid phenotypes among dermatologists and plastic surgeons in the Netherlands., Methods: Members of the Dutch society for Plastic surgery and the Dutch society for Dermatology and Venereology were asked to participate. Questions elaborated on the treatment for a small and a large keloid on the mandibula and multiple keloids on the chest., Results: One hundred forty-three responses were obtained. Heterogeneity in treatment was extremely high for the small, large, and multiple keloids with 27, 35, and 33 various first choices, respectively. Intralesional corticosteroids were most often chosen for all 3 different keloid phenotypes. These were mostly (61%) administered as monotherapy for the small keloid and mostly combined with other treatments for the large keloid (19%) and multiple keloids (43%). Surgery was chosen regularly (22%) for the large keloid, mostly combined with intralesional corticosteroids (10%) or brachytherapy (8.4%)., Conclusion: Keloid treatment is very heterogeneous among dermatologists and plastic surgeons, even in a relatively small country as the Netherlands. Moreover, the treatment choice depends on the keloid phenotype., (Copyright © 2023 by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved.)

To (1) appraise current international classification and clinical management strategies for craniofacial microsomia (CFM) and microtia, and (2) to assess agreement with the European Reference Network "European Guideline Craniofacial Microsomia" recommendations on screening and monitoring., This was a cross-sectional online survey study. The survey consisted of 44 questions on demographics, diagnostics and classification, obstructive sleep apnea, feeding difficulties, speech and language development, hearing, ocular abnormalities, visual development, orthodontic screening, genetic counselling, psychological wellbeing, and extracraniofacial anomalies., Respondents were participants of 3 international cleft and craniofacial conferences, members of the American Cleft Palate and Craniofacial Association and members of the International Society for Auricular Reconstruction. Respondents were requested to complete 1 questionnaire per multidisciplinary team., Fifty-seven responses were received from 30 countries (response rate ∼3%).The International Consortium for Health Outcomes Measurement diagnostic criteria were used by 86% of respondents, though 65% considered isolated microtia a mild form of CFM. The Orbit, Mandible, Ear, Facial Nerve and Soft Tissue classification system was used by 74% of respondents. Agreement with standardized screening and monitoring recommendations was between 61% and 97%. A majority of respondents agreed with screening for extracraniofacial anomalies (63%-68%) and with genetic counselling (81%)., This survey did not reveal consistent agreement on the diagnostic criteria for CFM. Respondents mostly supported management recommendations, but frequently disagreed with the standardization of care. Future studies could focus on working towards international consensus on diagnostic criteria, and exploring internationally feasible management strategies.

Keloid tissues contain inflammatory cells and upregulated pro-inflammatory cytokines. The Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway mediate cellular responses to these cytokines. We performed a systematic review on the role of the JAK-STAT pathway in keloid pathogenesis and the evidence for JAK-STAT inhibitors in keloid treatment. The search combined the terms (1) keloid and (2) JAK or TYK or STAT and included MeSH terms and synonyms. Two reviewers screened the articles and assessed the full texts on eligibility. Data were collected on the tested drugs and molecules, the type of cells and tissues used in the experiments, and study findings on the association between the JAK-STAT pathway and keloid cells and tissues. A total of twenty preclinical studies were included. Eleven preclinical studies proved that STAT3 expression and phosphorylation are enhanced in keloid tissue and keloid fibroblasts. Thirteen different JAK and/or STAT inhibitors were investigated. Tested drugs inhibited keloid progression as demonstrated by different processes, including reduced collagen production, cell proliferation and migration, increased cell cycle arrest and apoptosis, enhanced antioxidant responses, decreased (paracrine) signalling, and decreased profibrotic gene expression. No clinical studies have been published to date. Preclinical studies indicate a role for the JAK-STAT pathway in keloid pathogenesis and a potential role for JAK-STAT inhibitors in keloid treatment. The effect of these drugs should be further investigated on relevant biomarkers in a human keloid skin model, preferably including immune cells besides keloid fibroblasts and keratinocytes and in clinical studies., (© 2023 The Authors. Experimental Dermatology published by John Wiley & Sons Ltd.)

Background: Treatment indications of congenital melanocytic naevi (CMN) have shifted from the prevention of malignant transformation more towards the improvement of appearance and psychosocial health. Surgical excision is often preferred, but its safety and effectiveness remain unclear., Objective: To assess the outcomes of surgical excision of medium-to-giant CMN., Primary Outcome: safety (complications)., Secondary Outcome: effectiveness (satisfaction and CMN core outcomes)., Methods: PubMed, EMBASE, and CENTRAL were searched for studies on the excision of medium-to-giant CMN and/or CMN requiring reconstruction or serial excision. Meta-analyses of safety per patient were conducted, and pooled outcomes of safety and effectiveness were presented in summary-of-findings tables., Results: A total of 1444 studies were found, of which 22 were included, evaluating 643 eligible patients. Study quality varied, and reporting of baseline characteristics and outcomes was heterogeneous. Pooled proportions were overall 9.8% for major wound-related complications, 1.2% for minor wound-related complications, 1.2% for scar-related complications, and 4.3% for anatomical deformities. For large/giant CMN, complication rates were, respectively, 23.1%, 2.9%, 12.9%, and 2.4%; and for CMN with eyelid involvement, 0.5%, 3.3%, 0.4%, and 54.2%. Patients rated their satisfaction with the cosmetic outcome as 24.4% excellent, 71.0% good, and 4.6% poor/moderate. Physicians rated this as 18.3% excellent, 70.1% good, and 11.7% poor/moderate. Thirty-five other outcomes of effectiveness were summarized. However, many were rarely reported., Conclusions: Surgical excision of CMN appears to be safe and effective in many cases, depending on CMN size and location. Major wound-related complications and scar-related complications occurred more frequently with large/giant CMN, whereas anatomical deformities occurred with the majority of CMN with eyelid involvement., Competing Interests: Declaration of Competing Interest None., (Copyright © 2022 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Background: Intralesional corticosteroid administration (ICA) is a first-line treatment for keloids. However, its clinical results are still highly variable and often suboptimal. Treatment results may strongly be influenced by various operator-dependent factors. The aim of this study was to map the details of ICA in keloids described in randomized controlled trials (RCTs), hence presenting the scientific practice of a first-line treatment for keloids in the best available evidence., Summary: A systematic search was performed on PubMed, Ovid MEDLINE, Ovid EMBASE, and CENTRAL. Eligible studies were RCTs including patients with keloids treated with intralesional corticosteroids. Treatment and study design-related data were charted on a predefined form. Thirty-eight RCTs were included for data extraction. Triamcinolone acetonide was used in 37 (97.4%) studies. Dosing per cm2 could only be compared among ten (26%) studies and varied from 1 to 20 mg. The maximum dose per session varied from 20 to 80 mg. Local anesthetics were administered in seven (20%) RCTs. Treatment intervals varied from weekly to monthly, with 4 weeks most frequently (50%) used. Needle size was reported in eleven (29%) studies and varied from 26 to 30-gauge. Syringe size was specified in four (11%) studies, being 1 mL. The injection level was described in eleven (29%) studies. Blanching as endpoint was reported in ten (26%) studies. Outcome measures varied widely, from height, surface area, or volume, to Vancouver Scar Scale, Patient and Observer Scar Assessment Scale, pain and itch scores, patient satisfaction, and different efficacy rates. Only six studies had a follow-up of ≥6 months. Recurrence was identified in two studies with 18 weeks and 1 year of follow-up. Adverse events were reported in 23 (61%) studies., (© 2023 The Author(s). Published by S. Karger AG, Basel.)

Background: Surgery is considered to be the best treatment for recurrent hidradenitis suppurativa (HS). Although it is necessary to assess the effect on health-related quality of life (HR-QoL), patient-reported outcome measures (PROMs) are scarce and heterogeneously used in the literature about the surgical treatment of HS., Objective: The aim of this study was to provide a review of the complete literature for different PROMs used in the surgical treatment of HS and to assess their methodological qualities., Methods: A systematic literature search of PubMed, Medline, Cochrane, CINAHL, and Embase with an assessment following the COnsensus-based standards for the Selection of health status Measurement INstrument criteria., Results: The search identified 218 articles, with the inclusion of 6 studies for analysis. Identified PROMs were as follows: the Dermatology Life Quality Index (DLQI), the Derriford Appearance Scale-24 (DAS-24), and the Work Productivity and Activity Impairment (WPAI). These non-disease-specific PROMs seem to have poor results concerning development and content validation., Conclusion: The DLQI, WPAI, and DAS-24 are generic PROMs with poor methodological qualities for PROM development and content validation. Hidradenitis suppurativa-specific instruments are not used in available studies because they have been developed recently and, therefore, partially validated. More research is needed to further investigate methodological qualities of HS-specific instruments., (Copyright © 2022 by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved.)

Background: A congenital melanocytic naevus (CMN) is a rare skin condition that can be associated with abnormalities of the central nervous system (CNS). These anomalies can sometimes cause severe complications, and rarely death. Adequate information about aetiology and management is therefore crucial. To identify how to monitor patients with CMN, we aimed to estimate the prevalence of neurological involvement in patients with CMN and to summarize what specific neurological signs and symptoms and MRI abnormalities are reported in the medical literature. In addition, we summarized and evaluated the recommendations regarding MRI-screening reported in the medical literature., Methods: This review was registered in PROSPERO and reported according to the MOOSE checklist. A search was conducted in EMBASE (Ovid), PubMed, and the Cochrane Library. We included studies with 10 or more patients with CMN, reporting on neurological signs and symptoms or CNS MRI. Study selection, data extraction and methodological quality assessment were performed by two independent reviewers. A meta-analysis was used to assess the prevalence of neurological signs and symptoms., Results: Out of 1287 studies, fourteen studies were eligible for inclusion of which eight were included in the meta-analysis. Neurological signs and symptoms prevalence was 7.04% (CI 95% 4.47-10.93%) in the meta-analysis group and 6.26% (95% CI 3.85-10%) in a subgroup of patients with a CMN > 6 cm, evaluated in seven studies. Neurodevelopmental delay and seizures were the most frequently reported signs and symptoms. CNS melanocytosis and hydrocephalus were the most frequently reported MRI abnormalities. It was not possible to estimate the increased risk of neurological involvement in patients with CMN due to low quality of evidence and clinical heterogeneity., Conclusion: Standardization in CMN studies and a multi-centre prospective study are needed to evaluate neurological involvement. Based on current literature, it is not possible to make strong recommendations on routine MRI-screening. For now, every clinical centre should decide on its own policy and weigh the advantages and disadvantages of routine MRI., (© 2022. The Author(s).)