159 research outputs found

    Time Out of General Surgery Specialty training in the UK:A National Database Study

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    ObjectiveGeneral surgery specialty training in the United Kingdom takes 6 years and allows trainees to take time out of training. Studies from the United States have highlighted an increasing trend for taking time out of surgical training for research. This study aimed to evaluate trends in time out of training and the impact on the duration of UK general surgical specialty training.Design, setting, and participantsA cohort study using routinely collected surgical training data from the Intercollegiate Surgical Curriculum Program database for General surgery trainees registered from August 1, 2007. Trainees were classified as Completed Training or In-Training. Out of training periods were identified and time in training calculated (both unadjusted and adjusted for out of training periods) with a predicted time in training for those In-Training.ResultsOf the trainees still In-Training (n = 994), a greater proportion had taken time out of training compared with those who had completed training (n = 360; 54.5% vs 45.9%, p < 0.01). A greater proportion of the In-Training group had undertaken a formal research period compared with the Completed Training group (35.1% vs 6.1%, p < 0.01). Total unadjusted training time in the Completed Training group was a median 6.0 (interquartile range 6.0-7.0) years compared with a predicted unadjusted training time in the In-Training group, with an out of training period recorded, of a median 8.0 (interquartile range 7.0-9.0) years.ConclusionsTrainees are increasingly taking time out of surgical training, particularly for research, with a subsequent increase in total time of training. This should be considered when redesigning surgical training programs and planning the future surgical workforce

    Changing Autonomy in Operative Experience Through UK General Surgery Training:A National Cohort Study

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    Objectives:To determine the operative experience of UK general surgery trainees and assess the changing procedural supervision and acquisition of competency assessments through the course of training.Background Summary Data: Competency assessment is changing with concepts of trainee autonomy decisions (termed entrustment decisions) being introduced to surgical training.Methods: Data from the Intercollegiate Surgical Curriculum Programme (ISCP) and the eLogbook databases for all UK General Surgery trainees registered from 1st August 2007 who had completed training were used. Total and index procedures (IP) were counted and variation by year of training assessed. Recorded supervision codes and competency assessment outcomes for IPs were assessed by year of training.Results: We identified 311 trainees with complete data. Appendicectomy was the most frequently undertaken IP during first year of training (mean procedures (mp) = 26) and emergency laparotomy during final year of training (mp = 27). The proportion of all IPs recorded as unsupervised increased through training (

    A systematic review of population-based studies examining outcomes in primary retroperitoneal sarcoma surgery

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    Retroperitoneal sarcomas (RPS) are rare mesenchymal tumours. Their rarity challenges our ability to understand expected outcomes. The aim of this systematic review was to examine 30-day morbidity and mortality, overall survival rates and prognostic predictors from population-based studies for patients undergoing curative resection for primary RPS. A systematic literature review of EMBASE, MEDLINE, PUBMED and the Cochrane library was performed using PRISMA for population-based studies reporting from nationally registered databases on primary RPS surgical resections in adults. The main outcomes evaluated were 30-day morbidity and mortality and overall survival rates. The use of additional treatment modalities and predictors of overall survival were also examined. Fourteen studies (n = 12 834 patients) reporting from 3 national databases, (Surveillance, Epidemiology and End Results (SEER), the United States National Cancer Database (US NCDB) and the American College of Surgeons’ National Surgical Quality Improvement Program (ACS NSQIP)) were analysed. The reported overall 30-day morbidity and mortality were 23% (n = 191/846) and 3% (n = 278/10 181) respectively. Reported use of perioperative radiotherapy was 28%. No study reported loco-regional recurrence rates. Overall reported 5-year survival ranged from 52% to 62%. Independent predictors of overall survival were age of the patient, resection margin, tumour grade and size, histological subtype and receipt of radiotherapy. This review of population-based data demonstrated relatively low 30-day morbidity rates in patients undergoing curative surgical resections for primary RPS. Thirty-day mortality rates were similar to other abdominal tumour groups. There remains a paucity of data reporting recurrence rates, however 5-year survival rates ranged from 52 to 62%

    The Role of a Bioengineered Artificial Kidney in Renal Failure

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    Renal failure continues to carry substantial burden of morbidity and mortality in both acute and chronic forms, despite advances in transplantation and dialysis. There is evidence to suggest that the kidney has metabolic, endocrine, and immune effects transcending its filtration functions, even beyond secretion of renin and erythropoietin. Our laboratory has developed experience in the tissue culture of renal parenchymal cells, and has now been able to demonstrate the metabolic activity of these cells in an extracorporeal circuit recapitulating glomerulotubular anatomy. We have observed active transport of sodium, glucose, and glutathione. We describe the design and initial preclinical testing of the bioartificial kidney, as well as future directions of our research.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71995/1/j.1749-6632.2001.tb03841.x.pd

    Time out of general surgery specialty training in the UK: a national database study

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    Objective:General surgery specialty training in the UK takes 6 years and allows trainees to take time out of training. Studies from the USA have highlighted an increasing trend for taking time out of surgical training for research. This study aimed to evaluate trends in time out of training and the impact on the duration of UK general surgical specialty training. Design, setting and participants: A cohort study using routinely collected surgical training data from the Intercollegiate Surgical Curriculum Programme (ISCP) database for General Surgery trainees registered from 1st August 2007. Trainees were classified as Completed Training or In-Training. Out of training periods were identified and time in training calculated (both unadjusted and adjusted for out of training periods) with a predicted time in training for those In-Training. Results: Of the trainees still In-Training (n=994), a greater proportion had taken time out of training compared with those who had completed training (n=360) (54.5% vs 45.9%, p<0.01). A greater proportion of the In-Training group had undertaken a formal research period compared to the Completed Training group (35.1% vs 6.1%, p<0.01). Total unadjusted training time in the Completed Training group was a median 6.0 (IQR 6.0- 7.0) years compared with a predicted unadjusted training time in the In-Training group, with an out of training period recorded, of a median 8.0 (IQR 7.0- 9.0) years. Conclusions: Trainees are increasingly taking time out of surgical training, particularly for research, with a subsequent increase in total time of training. This should be considered when redesigning surgical training programmes and planning the future surgical workforce

    Time out of general surgery specialty training in the UK: a national database study

    Get PDF
    Objective:General surgery specialty training in the UK takes 6 years and allows trainees to take time out of training. Studies from the USA have highlighted an increasing trend for taking time out of surgical training for research. This study aimed to evaluate trends in time out of training and the impact on the duration of UK general surgical specialty training. Design, setting and participants: A cohort study using routinely collected surgical training data from the Intercollegiate Surgical Curriculum Programme (ISCP) database for General Surgery trainees registered from 1st August 2007. Trainees were classified as Completed Training or In-Training. Out of training periods were identified and time in training calculated (both unadjusted and adjusted for out of training periods) with a predicted time in training for those In-Training. Results: Of the trainees still In-Training (n=994), a greater proportion had taken time out of training compared with those who had completed training (n=360) (54.5% vs 45.9%, p<0.01). A greater proportion of the In-Training group had undertaken a formal research period compared to the Completed Training group (35.1% vs 6.1%, p<0.01). Total unadjusted training time in the Completed Training group was a median 6.0 (IQR 6.0- 7.0) years compared with a predicted unadjusted training time in the In-Training group, with an out of training period recorded, of a median 8.0 (IQR 7.0- 9.0) years. Conclusions: Trainees are increasingly taking time out of surgical training, particularly for research, with a subsequent increase in total time of training. This should be considered when redesigning surgical training programmes and planning the future surgical workforce

    Development of a wearable bioartificial kidney using the Bioartificial Renal Epithelial Cell System (BRECS)

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    Cell therapy for the treatment of renal failure in the acute setting has proved successful, with therapeutic impact, yet development of a sustainable, portable bioartificial kidney for treatment of chronic renal failure has yet to be realized. Challenges in maintaining an anticoagulated blood circuit, the typical platform for solute clearance and support of the biological components, have posed a major hurdle in advancement of this technology. This group has developed a Bioartificial Renal Epithelial Cell System (BRECS) capable of differentiated renal cell function while sustained by body fluids other than blood. To evaluate this device for potential use in endâ stage renal disease, a large animal model was established that exploits peritoneal dialysis fluid for support of the biological device and delivery of cell therapy while providing uraemic control. Anephric sheep received a continuous flow peritoneal dialysis (CFPD) circuit that included a BRECS. Sheep were treated with BRECS containing 1 à  108 renal epithelial cells or acellular sham devices for up to 7 days. The BRECS cell viability and activity were maintained with extracorporeal peritoneal fluid circulation. A systemic immunological effect of BRECS therapy was observed as cellâ treated sheep retained neutrophil oxidative activity better than shamâ treated animals. This model demonstrates that use of the BRECS within a CFPD circuit embodies a feasible approach to a sustainable and effective wearable bioartificial kidney. Copyright © 2016 John Wiley & Sons, Ltd.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140038/1/term2206.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/140038/2/term2206_am.pd

    Translation of immunomodulatory therapy to treat chronic heart failure: Preclinical studies to first in human

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    BACKGROUND: Inflammation has been associated with progression and complications of chronic heart failure (HF) but no effective therapy has yet been identified to treat this dysregulated immunologic state. The selective cytopheretic device (SCD) provides extracorporeal autologous cell processing to lessen the burden of inflammatory activity of circulating leukocytes of the innate immunologic system. AIM: The objective of this study was to evaluate the effects of the SCD as an extracorporeal immunomodulatory device on the immune dysregulated state of HF. HF. METHODS AND RESULTS: SCD treatment in a canine model of systolic HF or HF with reduced ejection fraction (HFrEF) diminished leukocyte inflammatory activity and enhanced cardiac performance as measured by left ventricular (LV) ejection fraction and stroke volume (SV) up to 4 weeks after treatment initiation. Translation of these observations in first in human, proof of concept clinical study was evaluated in a patient with severe HFrEFHFrEF ineligible for cardiac transplantation or LV LV assist device (LVAD) due to renal insufficiency and right ventricular dysfunction. Six hour SCD treatments over 6 consecutive days resulted in selective removal of inflammatory neutrophils and monocytes and reduction in key plasma cytokines, including tumor necrosis factor-alpha (TNF-α),), interleukin (IL)-6, IL-8, and monocyte chemoattractant protein (MCP)-1. These immunologic changes were associated with significant improvements in cardiac power output, right ventricular stroke work index, cardiac index and LVSV index…. Stabilization of renal function with progressive volume removal permitted successful LVAD implantation. CONCLUSION: This translational research study demonstrates a promising immunomodulatory approach to improve cardiac performance in HFrEFHFrEF and supports the important role of inflammation in the progression of HFHF

    Venous thromboembolism following colectomy for diverticular disease: an English population-based cohort study

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    AimThis study reports venous thromboembolism (VTE) rates following colectomy for diverticular disease to explore the magnitude of postoperative VTE risk in this population and identify high risk subgroups of interest. MethodEnglish national cohort study of colectomy patients between 2000 and 2019 using linked primary (Clinical Practice Research Datalink) and secondary (Hospital Episode Statistics) care data. Stratified by admission type, absolute incidence rates (IR) per 1000 person-years and adjusted incidence rate ratios (aIRR) were calculated for 30- and 90-day post-colectomy VTE. ResultsOf 24,394 patients who underwent colectomy for diverticular disease, over half (57.39%) were emergency procedures with the highest VTE rate seen in patients ≥70-years-old (IR 142.27 per 1000 person-years, 95%CI 118.32–171.08) at 30 days post colectomy. Emergency resections (IR 135.18 per 1000 person-years, 95%CI 115.72–157.91) had double the risk (aIRR 2.07, 95%CI 1.47–2.90) of developing a VTE at 30 days following colectomy compared to elective resections (IR 51.14 per 1000 person-years, 95%CI 38.30–68.27). Minimally invasive surgery (MIS) was shown to be associated with a 64% reduction in VTE risk (aIRR 0.36 95%CI 0.20–0.65) compared to open colectomies at 30 days post-op. At 90 days following emergency resections, VTE risks remained raised compared to elective colectomies. ConclusionFollowing emergency colectomy for diverticular disease, the VTE risk is approximately double compared to elective resections at 30 days while MIS was found to be associated with a reduced risk of VTE. This suggests advancements in postoperative VTE prevention in diverticular disease patients should focus on those undergoing emergency colectomies
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