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From operating room to leadership room: a systematic review of simulation-based interventions for leadership development in general surgery (2026)

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Type of publication:

Journal article

Author(s):

Gulnaz, Nadia; Soomro, Faiza Hashim; Nazir, Izza; *Ansar, Mehwish; Arshad, Rabia.

Citation:

BMC Medical Education. 26(1), 2026 May 27.

Abstract:

OBJECTIVE: To evaluate the effect of simulation-based leadership training on behavioral and safety-related outcomes in surgical and clinical environments. Leadership and non-technical skills (NTS) are critical for safe surgical practice. Simulation-based education can be helpful in the improvement of these skills. While simulation-based education is widely used to improve technical skills, its influence on leadership, teamwork, and patient safety outcomes is reported inconsistently.

METHODS: Following the PRISMA guidelines, studies evaluating leadership or NTS using simulation within surgical or perioperative contexts were included. Study characteristics, simulation format, assessment frameworks, leadership outcomes, and patient safety indicators were extracted. Risk of bias was evaluated using ROBINS-I and RoB-2, and visualised through the robvis platform.

RESULTS: Twelve studies with 430 participants met inclusion criteria. Sample sizes ranged from 14-69; most involving multidisciplinary teams of 2-6 members. High-fidelity modalities were used in approximately 70% of studies, while others incorporated wet-lab, video-based, or in-situ simulations. Leadership performance improved, with reported gains of 2-4 points on behavioral scales. Communication and teamwork scores increased by approximately 2-3 points, and Non-Technical Skills for Surgeons (NOTSS) domain means typically ranged from 2.8-3.5 on 4-point scales. Technical performance differences between senior and junior trainees averaged 30-40%. Checklist-supported teams missed only 6% of critical actions.

CONCLUSIONS: Simulation-based training was consistently associated with improvements in leadership, communication, teamwork, and safety-related performance across surgical and multidisciplinary settings. Although results were positive, heterogeneity in design and measurement shows the need for further high-quality, standardised research.

DOI: 10.1186/s12909-026-09486-z

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Exome sequencing directly implicates 68 genes in inflammatory bowel disease (2026)

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Type of publication:

Journal article

Author(s):

Zhu, Ruifei; Zhang, Qian; Yuan, Kai; Zhang, Rui; Turvey, Alexandra K; Stevens, Christine R; Fachal, Laura; Ahmad, Tariq; Bel Kok, Klaartje; Bernstein, Charles N; Bokemeyer, Bernd; Brant, Steven R; Brooks, Johanne; *Butterworth, Jeffrey; Cho, Judy H; Clark, Katie; Cummings, Fraser; Duerr, Richard H; Ennis, Sarah; Farkkila, Martti; Faubion, William A; Foley, Stephen; Franchimont, Denis; Franke, Andre; Hancock, Laura; Hart, Ailsa; Hooper, Patricia; Irving, Peter; Jarvis, Mark; Johnston, Emma; Karlson, Elizabeth W; Kemp, Cheryl; Kennedy, Nick; Kupcinskas, Juozas; Lamb, Christopher A; Lees, Charlie; Lewis, James D; Li, Andy; Limdi, Jimmy; Loescher, Britt-Sabina; Louis, Edouard; McCauley, Jacob L; McGovern, Dermot P B; McLaughlin, John; Moayyedi, Paul; Moran, Gordon; Newberry, Rodney D; Oglesby, Arabis; Palotie, Aarno; Pekow, Joel; Perez, Kate J; Pollok, Richard; Prescott, Natalie; Raine, Tim; Ramadas, Arvind; Ramakrishnan, Subramaniam; Sabic, Ksenija; Sands, Bruce; Satsangi, Jack; Sazonovs, Aleksejs; Schreiber, Stefan; Selinger, Christian; Shedwell, Sophy; Silverberg, Mark S; Singh, Salil; Sokol, Harry; Steed, Helen; Steel, Alan; Uhlig, Holm H; Verma, Ajay; Vermeire, Severine; Weersma, Rinse K; Xavier, Ramnik J; Yu, Mingrui; Parkes, Miles; Rioux, John D; Daly, Mark J; Huang, Hailiang; Anderson, Carl A.

Citation:

MedRxiv : the Preprint Server for Health Sciences. 2026 May 20.

Abstract:

Inflammatory bowel disease (IBD) is a chronic immune-mediated disorder of the gastrointestinal tract whose genetic basis is only partly resolved because most risk variants identified by genome-wide association studies (GWAS) lie in non-coding regions, limiting direct gene assignment and biological interpretation1,2. Here we analysed whole-exome and whole-genome sequencing data from 86,213 IBD cases and 478,363 controls of European ancestry. We identified 68 IBD genes directly implicated by conditionally independent protein-coding associations across the allele frequency spectrum. Many newly implicated IBD genes are supported by orthogonal genomic or pleiotropic evidence, pointing to disease-related pathways and nominating targets with therapeutic relevance. We further identified allelic series and non-additive effects at key loci such as NOD2 and TYK2. These results show that large-scale sequencing can resolve disease genes and pathways that remain ambiguous from non-coding association alone, providing a more direct route from human genetics to biological insight and therapeutic hypotheses.

DOI: 10.64898/2026.05.08.26352648

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Energy, flow and pressure in the cardiovascular system: a narrative review of how the circulation works (2026)

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Type of publication:

Journal article

Author(s):

*Miller, Ashley; Kirk-Bayley, Justin; Peck, Marcus; Wilkinson, Jonathan.

Citation:

Anaesthesia. 81(10):1386-1399, 2026 Oct.

Abstract:

INTRODUCTION: Understanding what determines blood flow in the circulation is central to haemodynamic management in anaesthesia and critical care. Traditional teaching emphasises pressure-based concepts, such as preload; afterload; central venous pressure; and venous return curves. However, these frameworks generate confusion about causality and control. Interpreting pressure variables as drivers of flow has contributed to inconsistent physiological reasoning and potentially harmful treatment. This narrative review re-examines how blood flow is generated and regulated, integrating classical physiology with contemporary mechanisms and provides a coherent clinical framework.

METHODS: We performed a search of MEDLINE and Embase with key terms, supplemented by citation tracking. We also included seminal physiological studies.

RESULTS: The reviewed literature showed that blood flow is constrained by energy supply from the heart and pressure established by vascular volume, elastance and the impedance of the inflow pathway to the heart. Mean systemic pressure reflects potential energy stored within the compliant venous system but does not drive flow. Right atrial pressure and preload are dependent variables that report the equilibrium between venous return and cardiac function, but do not control flow. Starling's mechanism provides passive mechanical matching of inflow to outflow but does not regulate cardiac output actively. Resistance-based interpretations alone fail to account for the influence of compliance, impedance and pulsatility. Misinterpretation of graphical and algebraic representations, particularly venous return curves, has obscured these relationships.

DISCUSSION: We describe a unified physiological framework in which the heart supplies energy, vascular properties define what flow is possible, and pressures reflect system state rather than driving forces. This model reconciles historically opposing paradigms and clarifies the limits of pressure-targeted resuscitation. Clinically, it promotes assessing flow responsiveness and cardiac reserve over static pressure targets, and provides a mechanistic basis for contemporary shock management, thus avoiding interventions that increase congestion without improving perfusion.

DOI: 10.1111/anae.70238

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Clinical outcome reporting in randomised controlled trials of remote obstetric antenatal monitoring: a systematic review (2026)

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Type of publication:

Systematic review

Author(s):

Le Vance, Jack; Man, Rebecca; Adeoye, *Adekunle; Amaranathan, Sneha; Massey, Sian; Gurney, Leo; Morris, R Katie; Morton, Victoria Hodgetts

Citation:

European Journal of Obstetrics, Gynecology, & Reproductive Biology. 322:115122, 2026 Jun.

Abstract:

BACKGROUND: Over the last decade, remote technological initiatives for obstetric antenatal care have rapidly developed. However, variation in outcome reporting can preclude effective data synthesis. A remedy for this is to develop of a core outcome set (COS). However, prior to this, it is necessary to examine the heterogeneity of outcome reporting.

METHODS: MEDLINE, Embase, Cochrane Database of Clinical Trials (CENTRAL), Web of Science, and PubMed databases from January 2015 to November 2025. Randomised controlled trials (RCTs), RCT protocols or pilot RCTs which assessed any outcome for any type of remote monitoring device during the obstetric antenatal period were included. Study characteristics, outcomes definitions and timings were extracted and descriptively analysed.

RESULTS: Of the 4904 papers screen, 40 studies were included (24 full RCTs, 10 protocols and six pilot RCTs) The most common remote monitoring devices used, either in isolation or in combination, were blood pressure (n = 17, 42.5%) and blood glucose (n = 16, 40.0%). In total, 1004 verbatim outcomes were noted, categorised into 361 unique outcomes, across 72 domains. Outcome definition was heterogenous, with glycaemic monitoring demonstrating the largest variation, with 29 different definitions. Longer-term outcomes were infrequently reported, with fewer than 6% of all outcomes evaluating more than 3 months postpartum. Maternal remote monitoring devices were most commonly assessed, with 29 studies solely evaluating these devices. No single outcome was reported in all studies.

CONCLUSION: This review demonstrates a lack of consistent outcome reporting for trials examining remote antenatal monitoring devices. Consequently, the development of a COS is recommended.

DOI: 10.1016/j.ejogrb.2026.115122

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Apocrine Hidrocystoma of Foreskin: A Rare Benign Cystic Lesion (2026)

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Type of publication:

Journal article

Author(s):

Han, Lin Aung; *Potter, Laura; *Bardapure, Mallikarjun.

Citation:

Cureus. 18(4):e107284, 2026 Apr.

Abstract:

Apocrine hidrocystoma is a benign cystic tumour arising from apocrine sweat glands. Its occurrence on the penile foreskin is exceedingly rare, representing an uncommon lesion of the external genitalia. A review of the literature suggests that only a limited number of cases -- approximately 13 involving external genitalia -- have been reported worldwide. We present the case of a 50-year-old gentleman who was referred to the urology service with a gradually enlarging, multiloculated, non-proliferative cyst arising from the foreskin. Patient underwent excisional biopsy with complete circumcision under local anaesthesia. Histopathology examination confirmed the diagnosis of apocrine hidrocystoma. Apocrine hidrocystomas are mostly located in the head and neck region, particularly the periorbital area, external auditory meatus, and axilla, with genital involvement being exceptionally uncommon. Complete surgical excision is both diagnostic and curative with a low risk of recurrence. Reports of apocrine hidrocystoma involving the foreskin remain scarce in the literature. To our knowledge, this represents the first reported case from Royal Shrewsbury Hospital.

DOI: 10.7759/cureus.107284

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An Electromyographic Study Comparing Muscle Function During Supination and Pronation of the Forearm (2026)

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Type of publication:

Journal article

Author(s):

Kondi, Suresh; *Murugesan, Thivagar; Postans, Neil; Thumri, Paavana; Kantamaneni, Ketan; Ansari, Shahbaz; Pickard, Simon.

Citation:

Cureus. 18(1):e101255, 2026 Jan.

Abstract:

BACKGROUND: Forearm pronation and supination are fundamental movements essential for daily activities and clinical applications. While supinator and biceps brachii contribute to supination, and pronator quadratus and pronator teres facilitate pronation, the precise activation patterns and torque-dependent recruitment strategies of these muscles remain incompletely understood. Conflicting evidence exists regarding muscle contribution at varying load conditions, with implications for rehabilitation protocols, surgical planning, and prosthetic design.

PURPOSE: This study aimed to quantify and compare the electromyographic (EMG) activity of forearm rotator muscles during isometric contraction under progressively increasing torque loads during both supination and pronation movements.

METHODS: Four healthy right-handed subjects (3 males, 1 female; mean age 32.5 years) underwent simultaneous EMG and motion capture recording. Surface electrodes captured activity from biceps brachii, triceps, pronator teres, and pronator quadratus, while fine-wire electrodes measured supinator muscle activity. Participants maintained a neutral forearm position against applied loads of 1 kilogram positioned at increasing distances (10-35 cm) from the supination axis, creating progressively higher torques. EMG signals were filtered, rectified, normalized, and analyzed using root mean square values across three trials per loading condition.

RESULTS: During supination resistance, the supinator demonstrated higher activation at lower torques compared to the biceps brachii. As applied torque increased, the biceps brachii activity increased proportionally more than the supinator, indicating load-dependent recruitment. Triceps showed increased co-activation for joint stability. During pronation resistance, the pronator quadratus exhibited greater activity at lower torques relative to the pronator teres. With increasing torque, the pronator teres demonstrated relatively greater activation increases than the pronator quadratus. Both movement patterns demonstrated progressive recruitment of multi-joint muscles as torque demands increased.

CONCLUSIONS: This pilot EMG study (n=4) provides preliminary descriptive evidence suggesting that supinator and pronator quadratus primarily govern low-torque forearm rotation, while biceps brachii and pronator teres become increasingly dominant during high-torque demands. These observed patterns are consistent with a hierarchical muscle recruitment strategy optimized for mechanical efficiency and joint stability. Understanding these activation patterns may have potential clinical applications for rehabilitation protocol design following nerve injury or tendon rupture, surgical planning for nerve transfer procedures, and development of myoelectric prosthetic control algorithms.

DOI: 10.7759/cureus.101255

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A multicentered retrospective cohort study comparing JAK inhibitor therapies in moderate-to-severe ulcerative colitis (2026)

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Type of publication:

Journal article

Author(s):

Kumar, Aditi; Baxter, Joshua; Rimmer, Peter; Noble, Ben; Bower, Joshua; Makki, Mujeeb Ullah; Hatta, Ayiesha; Chikhlia, Anmol; Cheesbrough, Jonathan; Disney, Ben; *Muir, Josh; *Karova, Mariya; *Butterworth, Jeffrey; Sagar, Nidhi; Al-Talib, Ismaeel; Nahal, Jasbir; Ali, Nasima; Sagar, Vandana; Varyani, Fumi; Smith, Sam; Bourne, Stephanie; Hsu, Yu-Kai; Eltahir, Almoiez; de Silva, Shanika; Harvey, Philip.

Citation:

Crohn's & Colitis 360. 8(2):otag045, 2026 Apr.

Abstract:

Background: Tofacitinib, filgotinib, and upadacitinib are Janus kinase inhibitors (JAKi) that have demonstrated efficacy in ulcerative colitis (UC) against placebo. This study aims to compare the clinical efficacy between these drugs.

Methods: This is a multicentered, retrospective cohort study. Patients with UC starting a JAKi were recruited between 2018 and 2024 when starting their first JAKi. Clinical remission and response, based on clinical scores, calprotectin, and endoscopic measurement, were assessed at 3 and 6 months. Both independent and combined variable outcomes were analyzed.

Results: Two hundred and seventy patients were included in the analysis, of which 70 (26%) were on upadacitinib, 51 (19%) on filgotinib, and 149 (55%) on tofacitinib. Clinical, biochemical, and endoscopic remission at 6 months was 91%, 71%, and 80% for upadacitinib; 78%, 67%, and 50% for filgotinib; 73%, 51%, and 44% for tofacitinib. Upadacitinib demonstrated significantly greater clinical response (P = .027) and remission (P = .037) rates at 6 months than tofacitinib. Drug persistence at 12 months was 86% for upadacitinib, 72% for filgotinib, and 69% for tofacitinib. Upadacitinib demonstrated significantly greater 6-month remission rates compared to tofacitinib in the bio-exposed cohort (71% vs 52%, P = .022) and in the bio-naive cohort (93% vs 50%, P = .009). The incidence rates for hospital admissions were 10.2, 21.9, and 14.1 and for colectomies were 6.7, 10.0, and 5.0 per 1000 patient-months at risk for upadacitinib, filgotinib and tofacitinib, respectively.

Conclusion: This study demonstrates that upadacitinib is more likely to achieve 6-month response and remission compared to tofacitinib. In both bio-naive and bio-exposed patients, upadacitinib was more likely to achieve remission at 6 months. The efficacy of JAKi does not appear diminished by prior biologic use.

DOI: 10.1093/crocol/otag045

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Intranetwork variation in neoadjuvant therapy delivery for borderline resectable and locally advanced pancreatic cancer: a UK multicentre cohort study (2026)

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Type of publication:

Journal article

Author(s):

Labib, P L; Alarabiyat, M; Powell-Brett, S; Hall, L; Rehman, S; Edwards, D; Ma, Y T; Sivakumar, S; Good, J; Candish, C; Nagy, A; Tsalic, M; Hafeez, T; Kunene, V; *Chatterjee, A; Roberts, K J; Chatzizacharias, N.

Citation:

Annals of the Royal College of Surgeons of England. 2026 Apr 09.

Abstract:

INTRODUCTION: Pancreatic cancer (PC) treatment in the UK is coordinated via regional referral networks, but formal neoadjuvant chemotherapy (NAC) pathways for borderline resectable and locally advanced PC (BR/LAPC) are rare. This cohort study assessed intranetwork variation in access to diagnostics, time to treatment and patient outcomes following NAC for BR/LAPC in our network.

METHODS: All patients with BR/LAPC referred from regional network hospitals between 2017 and 2021 were reviewed. Data were collected on time from first diagnostic computed tomography scan to endoscopy, commencement of NAC, NAC regimens administered and patient outcomes.

RESULTS: In the 155 patients who commenced NAC, there were significant differences in median time to biliary drainage and endoscopic ultrasound between referral hospitals. Time from decision to treat to first administration of NAC was long (median 64 days). There were significant differences in the proportion of patients commenced on mFOLFIRINOX (0-100%, p<0.001) and the proportion completing NAC (0-100%, p=0.012). The likelihood of proceeding to surgical resection was similar between centres.

CONCLUSIONS: There is significant intranetwork variation in access to interventional endoscopy and choice of NAC regimen. Centralised tracking of patients receiving NAC, development of locally agreed treatment protocols and an update to national guidelines are needed to standardise NAC pathways for BR/LAPC.

DOI: 10.1308/rcsann.2026.0023

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Optimising Performance Through Sleep: An Evidence-Based Review (2026)

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Type of publication:

Journal article

Author(s):

*Bastock, Daniel; Amarnani, Raj.

Citation:

Cureus. 18(7):e111990, 2026 Jul.

Abstract:

Sleep is increasingly being recognised as an important factor influencing athletic performance, recovery and overall health. This narrative review aims to discuss the factors that can affect sleep in athletes and how sleep can affect performance. Traditionally, athlete well-being has focused on training and nutrition; however, new evidence and initiatives now highlight sleep as an important element of performance. This review examines current evidence on sleep duration, sleep quality and sleep disturbances in athletic populations, with a particular focus on the effects related to competition. Athletes often report shorter sleep durations than non-athletes, despite experiencing less sleep fragmentation and quicker sleep onset. One study found that on nights before a competition day, athletes went to bed earlier (22:56 hr +/- 49.2 min), woke up later (8:12 hr +/- 58.6 min) and slept for longer (7:57 hr +/- 60.9 min). A significant number of athletes face poor sleep quality, difficulty falling asleep, and excessive daytime sleepiness. Sleep disruptions are also common around competitions, with post-competition nights showing reductions in total sleep time and sleep quality compared to pre-competition nights. Factors contributing to this include late competition times, heightened physiological and psychological arousal, increased caffeine intake, travel demands and use of technology. Overall, these findings demonstrate that inadequate and disturbed sleep is widespread among athletes, especially during competition periods, which may impact recovery, cognitive function and emotional stability.

DOI: 10.1002/wjs.70558

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Interventions to Reduce Surgical Site Infection in Transmetatarsal Forefoot Amputations: A Feasibility Survey (2026)

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Type of publication:

Journal article

Author(s):

*Alawattegama, Lakna Harindi; Al-Saadi, Nina; Bosanquet, David; Chetter, Ian; Fabre, Ismay; Garnham, Andrew; Gwilym, Brenig; Hitchman, Louise; Long, Judith; Magill, Laura; Worrallo, Katie; Pinkney, Thomas; Popplewell, Matthew; Wall, Michael.

Citation:

International Wound Journal. 23(4):e70846, 2026 Apr.

Abstract:

Surgical site infection (SSI) following transmetatarsal amputation (TMA) is common and associated with significant morbidity. However, there is limited evidence to guide perioperative strategies for SSI prevention in this population. A prospective, cross-sectional survey was conducted among vascular specialists. The questionnaire assessed current practice in SSI prevention for TMA, perceptions of evidence gaps, and willingness to participate in future research. Responses were analysed descriptively. Eighty-four valid responses were analysed, with 64.3% from consultant vascular surgeons and 84.5% from UK centres. Most respondents (84.5%) considered SSI after TMA to be a significant issue. The majority preferred primary closure in clean wounds (78.6%) and commonly used short-course antibiotics and interrupted sutures. Over 70% agreed no clear best practice exists, and 65.5% felt high-quality randomised trials are needed. Ninety-three percent expressed willingness to engage in future studies. Equipoise existed regarding interventions including antibiotic duration, wound adjuncts, and closure techniques. Opinion varied regarding whether TMA and major lower limb amputation should be pooled when undertaking research into SSI prevention. Current practice in SSI prevention for TMA is highly variable. This survey demonstrates broad support for rigorous trials to establish effective strategies and highlights the feasibility of future research in this area.

DOI: 10.1111/iwj.70846

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