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1.
Br J Surg ; 110(7): 852-863, 2023 06 12.
Artículo en Inglés | MEDLINE | ID: mdl-37196149

RESUMEN

BACKGROUND: Anastomotic leak is a severe complication after oesophagectomy. Anastomotic leak has diverse clinical manifestations and the optimal treatment strategy is unknown. The aim of this study was to assess the efficacy of treatment strategies for different manifestations of anastomotic leak after oesophagectomy. METHODS: A retrospective cohort study was performed in 71 centres worldwide and included patients with anastomotic leak after oesophagectomy (2011-2019). Different primary treatment strategies were compared for three different anastomotic leak manifestations: interventional versus supportive-only treatment for local manifestations (that is no intrathoracic collections; well perfused conduit); drainage and defect closure versus drainage only for intrathoracic manifestations; and oesophageal diversion versus continuity-preserving treatment for conduit ischaemia/necrosis. The primary outcome was 90-day mortality. Propensity score matching was performed to adjust for confounders. RESULTS: Of 1508 patients with anastomotic leak, 28.2 per cent (425 patients) had local manifestations, 36.3 per cent (548 patients) had intrathoracic manifestations, 9.6 per cent (145 patients) had conduit ischaemia/necrosis, 17.5 per cent (264 patients) were allocated after multiple imputation, and 8.4 per cent (126 patients) were excluded. After propensity score matching, no statistically significant differences in 90-day mortality were found regarding interventional versus supportive-only treatment for local manifestations (risk difference 3.2 per cent, 95 per cent c.i. -1.8 to 8.2 per cent), drainage and defect closure versus drainage only for intrathoracic manifestations (risk difference 5.8 per cent, 95 per cent c.i. -1.2 to 12.8 per cent), and oesophageal diversion versus continuity-preserving treatment for conduit ischaemia/necrosis (risk difference 0.1 per cent, 95 per cent c.i. -21.4 to 1.6 per cent). In general, less morbidity was found after less extensive primary treatment strategies. CONCLUSION: Less extensive primary treatment of anastomotic leak was associated with less morbidity. A less extensive primary treatment approach may potentially be considered for anastomotic leak. Future studies are needed to confirm current findings and guide optimal treatment of anastomotic leak after oesophagectomy.


Asunto(s)
Fuga Anastomótica , Neoplasias Esofágicas , Humanos , Anastomosis Quirúrgica/efectos adversos , Fuga Anastomótica/etiología , Fuga Anastomótica/cirugía , Estudios de Cohortes , Neoplasias Esofágicas/cirugía , Neoplasias Esofágicas/complicaciones , Esofagectomía/efectos adversos , Isquemia/cirugía , Necrosis/complicaciones , Necrosis/cirugía , Estudios Retrospectivos
2.
Br J Surg ; 109(11): 1096-1106, 2022 10 14.
Artículo en Inglés | MEDLINE | ID: mdl-36001582

RESUMEN

BACKGROUND: Pulmonary complications are the most common morbidity after oesophagectomy, contributing to mortality and prolonged postoperative recovery, and have a negative impact on health-related quality of life. A variety of single or bundled interventions in the perioperative setting have been developed to reduce the incidence of pulmonary complications. Significant variation in practice exists across the UK. The aim of this modified Delphi consensus was to deliver clear evidence-based consensus recommendations regarding intraoperative and postoperative care that may reduce pulmonary complications after oesophagectomy. METHODS: With input from a multidisciplinary group of 23 experts in the perioperative management of patients undergoing surgery for oesophageal cancer, a modified Delphi method was employed. Following an initial systematic review of relevant literature, a range of anaesthetic, surgical, and postoperative care interventions were identified. These were then discussed during a two-part virtual conference. Recommendation statements were drafted, refined, and agreed by all attendees. The level of evidence supporting each statement was considered. RESULTS: Consensus was reached on 12 statements on topics including operative approach, pyloric drainage strategies, intraoperative fluid and ventilation strategies, perioperative analgesia, postoperative feeding plans, and physiotherapy interventions. Seven additional questions concerning the perioperative management of patients undergoing oesophagectomy were highlighted to guide future research. CONCLUSION: Clear consensus recommendations regarding intraoperative and postoperative interventions that may reduce pulmonary complications after oesophagectomy are presented.


Asunto(s)
Esofagectomía , Calidad de Vida , Esofagectomía/efectos adversos , Humanos , Irlanda , Cuidados Posoperatorios , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control , Reino Unido
3.
Br J Surg ; 109(9): 864-871, 2022 08 16.
Artículo en Inglés | MEDLINE | ID: mdl-35759409

RESUMEN

BACKGROUND: Anastomotic leak (AL) is a common but severe complication after oesophagectomy. It is unknown how to determine the severity of AL objectively at diagnosis. Determining leak severity may guide treatment decisions and improve future research. This study aimed to identify leak-related prognostic factors for mortality, and to develop a Severity of oEsophageal Anastomotic Leak (SEAL) score. METHODS: This international, retrospective cohort study in 71 centres worldwide included patients with AL after oesophagectomy between 2011 and 2019. The primary endpoint was 90-day mortality. Leak-related prognostic factors were identified after adjusting for confounders and were included in multivariable logistic regression to develop the SEAL score. Four classes of leak severity (mild, moderate, severe, and critical) were defined based on the risk of 90-day mortality, and the score was validated internally. RESULTS: Some 1509 patients with AL were included and the 90-day mortality rate was 11.7 per cent. Twelve leak-related prognostic factors were included in the SEAL score. The score showed good calibration and discrimination (c-index 0.77, 95 per cent c.i. 0.73 to 0.81). Higher classes of leak severity graded by the SEAL score were associated with a significant increase in duration of ICU stay, healing time, Comprehensive Complication Index score, and Esophagectomy Complications Consensus Group classification. CONCLUSION: The SEAL score grades leak severity into four classes by combining 12 leak-related predictors and can be used to the assess severity of AL after oesophagectomy.


Asunto(s)
Neoplasias Esofágicas , Esofagectomía , Anastomosis Quirúrgica/efectos adversos , Fuga Anastomótica/diagnóstico , Fuga Anastomótica/etiología , Fuga Anastomótica/cirugía , Neoplasias Esofágicas/complicaciones , Neoplasias Esofágicas/cirugía , Esofagectomía/efectos adversos , Humanos , Modelos Logísticos , Estudios Retrospectivos
4.
Br J Anaesth ; 129(1): 114-126, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35568508

RESUMEN

BACKGROUND: Enhanced recovery pathways are associated with improved postoperative outcomes. However, as enhanced recovery pathways have become more complex and varied, compliance has reduced. The 'DrEaMing' bundle re-prioritises early postoperative delivery of drinking, eating, and mobilising. We investigated relationships between DrEaMing compliance, postoperative hospital length of stay (LOS), and complications in a prospective multicentre major surgical cohort. METHODS: We interrogated the UK Perioperative Quality Improvement Programme dataset. Analyses were conducted in four stages. In an exploratory cohort, we identified independent predictors of DrEaMing. We quantified the association between delivery of DrEaMing (and its component variables) and prolonged LOS in a homogenous colorectal subgroup and assessed generalisability in multispecialty patients. Finally, LOS and complications were compared across hospitals, stratified by DrEaMing compliance. RESULTS: The exploratory cohort comprised 22 218 records, the colorectal subgroup 7230, and the multispecialty subgroup 5713. DrEaMing compliance was 59% (13 112 patients), 60% (4341 patients), and 60% (3421), respectively, but varied substantially between hospitals. Delivery of DrEaMing predicted reduced odds of prolonged LOS in colorectal (odds ratio 0.51 [0.43-0.59], P<0.001) and multispecialty cohorts (odds ratio 0.47 [0.41-0.53], P<0.001). At the hospital level, complications were not the primary determinant of LOS after colorectal surgery, but consistent delivery of DrEaMing was associated with significantly shorter LOS. CONCLUSIONS: Delivery of bundled and unbundled DrEaMing was associated with substantial reductions in postoperative LOS, independent of the effects of confounder variables. Consistency of process delivery, and not complications, predicted shorter hospital-level length of stay. DrEaMing may be adopted by perioperative health systems as a quality metric to support improved patient outcomes and reduced hospital length of stay.


Asunto(s)
Neoplasias Colorrectales , Complicaciones Posoperatorias , Estudios de Cohortes , Neoplasias Colorrectales/cirugía , Humanos , Tiempo de Internación , Complicaciones Posoperatorias/epidemiología , Estudios Prospectivos
5.
Ann Surg ; 274(2): 367-374, 2021 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-31567508

RESUMEN

OBJECTIVE: The objective of this study was to evaluate the differences between patients who undergo cholecystectomy following index admission for cholecystitis, and those who are managed nonoperatively. SUMMARY BACKGROUND DATA: Index emergency cholecystectomy following acute cholecystitis is widely recommended by national guidelines, but its effect on clinical outcomes remains uncertain. METHODS: Data collected routinely from the Hospital Episode Statistics database (all admissions to National Health Service organizations in England and Wales) were extracted between April 1, 2002 and March 31, 2015. Analyses were limited to patients aged over 18 years with a primary diagnosis of cholecystitis. Exclusions included records with missing or invalid datasets, patients who had previously undergone a cholecystectomy, patients who had died without a cholecystectomy, and those undergoing cholecystectomy for malignancy, pancreatitis, or choledocholithiasis. Patients were grouped as either "no cholecystectomy" where they had never undergone a cholecystectomy following discharge, or "cholecystectomy." The latter group was then subdivided as "emergency cholecystectomy" when cholecystectomy was performed during their index emergency admission, or "interval cholecystectomy" when a cholecystectomy was performed within 12 months following a subsequent (emergency or elective) admission. Propensity Score Matching was used to match emergency and interval cholecystectomy groups. Main outcome measures included 1) One-year total length of hospital stay due to biliary causes following an index emergency admission with cholecystitis. 2) One-year mortality; defined as death occurring within 1 year following the index emergency admission with acute cholecystitis. RESULTS: Of the 99,139 patients admitted as an emergency with acute cholecystitis, 51.1% (47,626) did not undergo a cholecystectomy within 1 year of index admission. These patients were older, with more comorbidities (Charlson Comorbidity Score ≥ 5 in 23.5% vs. 8.1%, P < 0.001) when compared to patients who did have a cholecystectomy. While all-cause 1-year mortality was higher in the nonoperated versus the operated group (12.2% vs. 2.0%, P < 0.001), gallbladder-related deaths were significantly lower than all other causes of death in the non-operated group (3.3% vs. 8.9%, P < 0.001). Following matching, 1-year total hospital admission time was significantly higher following emergency compared with interval cholecystectomy (17.7 d vs. 13 d, P < 0.001). CONCLUSIONS: Over 50% of patients in England did not undergo cholecystectomy following index admission for acute cholecystitis. Mortality was higher in the nonoperated group, which was mostly due to non-gallbladder pathologies but total hospital admission time for biliary causes was lower over 12 months. Increasing the numbers of emergency cholecystectomy may risk over-treating patients with acute cholecystitis and increasing their time spent admitted to hospital.


Asunto(s)
Colecistectomía , Colecistitis Aguda/terapia , Tratamiento Conservador , Colecistitis Aguda/mortalidad , Urgencias Médicas , Inglaterra/epidemiología , Femenino , Hospitalización/estadística & datos numéricos , Humanos , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Medicina Estatal , Gales/epidemiología
6.
Surg Endosc ; 34(11): 4727-4740, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32661706

RESUMEN

BACKGROUND: Laparoscopic cholecystectomy is increasingly performed in an ever ageing population; however, the risks are poorly quantified. The study aims to review the current evidence to quantify further the postoperative risk of cholecystectomy in the elderly population compared to younger patients. METHOD: A systematic literature search of PubMed, EMBASE and the Cochrane Library databases were conducted including studies reporting laparoscopic cholecystectomy in the elderly population. A meta-analysis was reported in accordance with the recommendations of the Cochrane Library and PRISMA guidelines. Primary outcome was overall complications and secondary outcomes were conversion to open surgery, bile leaks, postoperative mortality and length of stay. RESULTS: This review identified 99 studies incorporating 326,517 patients. Increasing age was significantly associated with increased rates of overall complications (OR 2.37, CI95% 2.00-2.78), major complication (OR 1.79, CI95% 1.45-2.20), risk of conversion to open cholecystectomy (OR 2.17, CI95% 1.84-2.55), risk of bile leaks (OR 1.50, CI95% 1.07-2.10), risk of postoperative mortality (OR 7.20, CI95% 4.41-11.73) and was significantly associated with increased length of stay (MD 2.21 days, CI95% 1.24-3.18). CONCLUSION: Postoperative outcomes such as overall and major complications appear to be significantly higher in all age cut-offs in this meta-analysis. This study demonstrated there is a sevenfold increase in perioperative mortality which increases by tenfold in patients > 80 years old. This study appears to confirm preconceived suspicions of higher risks in elderly patients undergoing cholecystectomy and may aid treatment planning and informed consent.


Asunto(s)
Colecistectomía Laparoscópica/métodos , Conversión a Cirugía Abierta/métodos , Enfermedades de la Vesícula Biliar/cirugía , Complicaciones Posoperatorias/epidemiología , Factores de Edad , Anciano , Salud Global , Humanos , Incidencia , Factores de Riesgo
7.
Dis Esophagus ; 2020 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-32500134

RESUMEN

BACKGROUND: Several guidelines to guide clinical practice among esophagogastric surgeons during the COVID-19 pandemic were produced. However, none provide reflection of current service provision. This international survey aimed to clarify the changes observed in esophageal and gastric cancer management and surgery during the COVID-19 pandemic. METHODS: An online survey covering key areas for esophagogastric cancer services, including staging investigations and oncological and surgical therapy before and during (at two separate time-points-24th March 2020 and 18th April 2020) the COVID-19 pandemic were developed. RESULTS: A total of 234 respondents from 225 centers and 49 countries spanning six continents completed the first round of the online survey, of which 79% (n = 184) completed round 2. There was variation in the availability of staging investigations ranging from 26.5% for endoscopic ultrasound to 62.8% for spiral computed tomography scan. Definitive chemoradiotherapy was offered in 14.8% (adenocarcinoma) and 47.0% (squamous cell carcinoma) of respondents and significantly increased by almost three-fold and two-fold, respectively, in both round 1 and 2. There were uncertainty and heterogeneity surrounding prioritization of patients undergoing cancer resections. Of the surgeons symptomatic with COVID-19, only 40.2% (33/82) had routine access to COVID-19 polymerase chain reaction testing for staff. Of those who had testing available (n = 33), only 12.1% (4/33) had tested positive. CONCLUSIONS: These data highlight management challenges and several practice variations in caring for patients with esophagogastric cancers. Therefore, there is a need for clear consistent guidelines to be in place in the event of a further pandemic to ensure a standardized level of oncological care for patients with esophagogastric cancers.

8.
Dis Esophagus ; 33(11)2020 Nov 18.
Artículo en Inglés | MEDLINE | ID: mdl-32448903

RESUMEN

INTRODUCTION: Currently, the American Joint Commission on Cancer (AJCC) staging system is used for prognostication for oesophageal cancer. However, several prognostically important factors have been reported but not incorporated. This meta-analysis aimed to characterize the impact of preoperative, operative, and oncological factors on the prognosis of patients undergoing curative resection for oesophageal cancer. METHODS: This systematic review was performed according to PRISMA guidelines and eligible studies were identified through a search of PubMed, Scopus, and Cochrane CENTRAL databases up to 31 December 2018. A meta-analysis was conducted with the use of random-effects modeling to determine pooled univariable hazard ratios (HRs). The study was prospectively registered with the PROSPERO database (Registration: CRD42018157966). RESULTS: One-hundred and seventy-one articles including 73,629 patients were assessed quantitatively. Of the 122 factors associated with survival, 39 were significant on pooled analysis. Of these. the strongly associated prognostic factors were 'pathological' T stage (HR: 2.07, CI95%: 1.77-2.43, P < 0.001), 'pathological' N stage (HR: 2.24, CI95%: 1.95-2.59, P < 0.001), perineural invasion (HR: 1.54, CI95%: 1.36-1.74, P < 0.001), circumferential resection margin (HR: 2.17, CI95%: 1.82-2.59, P < 0.001), poor tumor grade (HR: 1.53, CI95%: 1.34-1.74, P < 0.001), and high neutrophil:lymphocyte ratio (HR: 1.47, CI95%: 1.30-1.66, P < 0.001). CONCLUSION: Several tumor biological variables not included in the AJCC 8th edition classification can impact on overall survival. Incorporation and validation of these factors into prognostic models and next edition of the AJCC system will enable personalized approach to prognostication and treatment.


Asunto(s)
Neoplasias Esofágicas , Esofagectomía , Neoplasias Esofágicas/patología , Neoplasias Esofágicas/cirugía , Humanos , Márgenes de Escisión , Estadificación de Neoplasias , Pronóstico
9.
Dis Esophagus ; 33(3)2020 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-31957798

RESUMEN

Anastomotic leaks (AL) are a major complication after esophagectomy. This meta-analysis aimed to determine identify risks factors for AL (preoperative, intra-operative, and post-operative factors) and assess the consequences to outcome on patients who developed an AL. This systematic review was performed according to PRISMA guidelines, and eligible studies were identified through a search of PubMed, Scopus, and Cochrane CENTRAL databases up to 31 December 2018. A meta-analysis was conducted with the use of random-effects modeling and prospectively registered with the PROSPERO database (Registration CRD42018130732). This review identified 174 studies reporting outcomes of 74,226 patients undergoing esophagectomy. The overall pooled AL rates were 11%, ranging from 0 to 49% in individual studies. Majority of studies were from Asia (n = 79). In pooled analyses, 23 factors were associated with AL (17 preoperative and six intraoperative). AL were associated with adverse outcomes including pulmonary (OR: 4.54, CI95%: 2.99-6.89, P < 0.001) and cardiac complications (OR: 2.44, CI95%: 1.77-3.37, P < 0.001), prolonged hospital stay (mean difference: 15 days, CI95%: 10-21 days, P < 0.001), and in-hospital mortality (OR: 5.91, CI95%: 1.41-24.79, P = 0.015). AL are a major complication following esophagectomy accounting for major morbidity and mortality. This meta-analysis identified modifiable risk factors for AL, which can be a target for interventions to reduce AL rates. Furthermore, identification of both modifiable and non-modifiable risk factors will facilitate risk stratification and prediction of AL enabling better perioperative planning, patient counseling, and informed consent.


Asunto(s)
Fuga Anastomótica , Neoplasias Esofágicas/cirugía , Esofagectomía/efectos adversos , Ajuste de Riesgo/métodos , Fuga Anastomótica/diagnóstico , Fuga Anastomótica/epidemiología , Fuga Anastomótica/etiología , Esofagectomía/métodos , Humanos
10.
Ann Surg ; 269(6): 1064-1072, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31082903

RESUMEN

OBJECTIVE: The aim of this study was to prioritize key factors contributing to safety on the surgical ward BACKGROUND:: There is a variation in the quality and safety of postoperative care between institutions. These variations may be attributed to a combination of process-related issues and structural factors. The aim of this study is to reach a consensus, by means of Delphi methodology, on the most influential of these components that may determine safety in this environment. METHODS: The Delphi questionnaire was delivered via an online questionnaire platform. The panel were blinded. An international panel of safety experts, both clinical and nonclinical, and safety advocates participated. Individuals were selected according to their expertise and extent of involvement in patient safety research, regulation, or patient advocacy. RESULTS: Experts in patient safety from the UK, Europe, North America, and Australia participated. The panel identified the response to a deteriorating patient and the care of outlier patients as error-prone processes. Prioritized structural factors included organizational and environmental considerations such as use of temporary staff, out-of-hours reduction in services, ward cleanliness, and features of layout. The latter includes dedicated areas for medication preparation and adequate space around the patient for care delivery. Potential quality markers for safe care that achieved the highest consensus include leadership, visibility between patients and nurses, and nursing team skill mix and staffing levels. CONCLUSION: International consensus was achieved for a number of factors across process-related and structural themes that may influence safety in the postoperative environment. These should be championed and prioritized for future improvements in patient safety at the ward-level.


Asunto(s)
Complicaciones Intraoperatorias/prevención & control , Atención Perioperativa , Complicaciones Posoperatorias/prevención & control , Garantía de la Calidad de Atención de Salud , Mejoramiento de la Calidad , Australia , Consenso , Técnica Delphi , Europa (Continente) , Humanos , Complicaciones Intraoperatorias/etiología , América del Norte , Seguridad del Paciente , Complicaciones Posoperatorias/etiología , Encuestas y Cuestionarios
11.
World J Surg ; 43(10): 2483-2489, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31222637

RESUMEN

BACKGROUND: Several techniques have been described for esophagogastric anastomosis following esophagectomy. This study compared the outcomes of circular stapled anastomoses with semi-mechanical technique using a linear stapler. METHODS: Perioperative data were extracted from a contemporaneously collected database of all consecutive esophagectomies for cancer with intrathoracic anastomoses performed in the Trent Oesophago-Gastric Unit between January 2015 and April 2018. Anastomotic techniques: circular stapled versus semi-mechanical, were evaluated and outcomes were compared. The primary outcome was anastomotic leak rate. Secondary outcomes included anastomotic stricture, overall complication rates, length of stay (LOS) and 30 day all-cause mortality. RESULTS: One hundred and fifty-nine consecutive esophagectomies with intrathoracic anastomosis were performed during the study period. There were no significant differences between the two groups in terms of age, American Society of Anaesthesiologists score, Charlson comorbidity index and neoadjuvant therapies received. Circular stapled anastomoses were performed in 85 patients, while 74 patients received a semi-mechanical anastomosis. Clavien-Dindo complications II or more were higher in the circular stapled group (p = 0.02). There were 16 (10%) anastomotic leaks overall, three (4%) in semi-mechanical group versus 13 (15%) in the circular stapled group (p < 0.019). There was no statistically significant difference between the two groups in terms of LOS, 30-day mortality or the need for endoscopic dilatation of the anastomosis at 3 months follow-up. CONCLUSION: The move from a circular stapled to a semi-mechanical intrathoracic anastomosis has been associated with a reduced postoperative anastomotic leak rate following esophagectomy for esophageal cancer.


Asunto(s)
Anastomosis Quirúrgica/métodos , Neoplasias Esofágicas/cirugía , Esofagectomía/métodos , Grapado Quirúrgico/métodos , Anciano , Anastomosis Quirúrgica/efectos adversos , Fuga Anastomótica/epidemiología , Bases de Datos Factuales , Esofagectomía/instrumentación , Esofagectomía/mortalidad , Femenino , Estudios de Seguimiento , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Técnicas de Sutura , Resultado del Tratamiento
12.
Bioprocess Biosyst Eng ; 41(7): 917-929, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29564535

RESUMEN

Direct measurement of cell biomass is difficult in a solid-state fermentation (SSF) process involving filamentous fungi since the mycelium and the solid substrate are often inseparable. However, respiratory data are rich in information for real-time monitoring of microbial biomass production. In this regard, a correlation was obtained between oxygen uptake rate (OUR) and biomass concentration (X) of Rhizopus oryzae MTCC 1987, during phytase production, in an intermittently mixed novel SSF bioreactor. To obtain the correlation, various models describing sigmoidal growth were tested, namely the logistic, Gompertz, Stannard, and Schnute models. Regression analysis of experimental results, at different operating conditions of inlet air flow rate and relative humidity suggested that OUR and X were correlated well by the logistic model (R2 > 0.90). To corroborate the use of respiratory data for on-line measurement of metabolic activity, OUR was related to metabolic heat generation rate (Rq), and the logistic model was found to satisfactorily correlate Rq and X as well. The model parameter, YQ/X, when substituted into a heat transfer design equation, along with the values of other parameters and operating variables, gave reliable estimates of bed temperature. The correlations developed in the present study, between respiratory activity and biomass concentration may be extended on to other SSF processes for further validation and real-time monitoring of cell biomass and bed temperature.


Asunto(s)
Biomasa , Reactores Biológicos , Modelos Biológicos , Consumo de Oxígeno , Oxígeno/metabolismo , Rhizopus/crecimiento & desarrollo
14.
Ann Surg ; 261(5): 862-9, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25185469

RESUMEN

OBJECTIVE: This study evaluates whether video-based coaching can enhance laparoscopic surgical skills performance. BACKGROUND: Many professions utilize coaching to improve performance. The sports industry employs video analysis to maximize improvement from every performance. METHODS: Laparoscopic novices were baseline tested and then trained on a validated virtual reality (VR) laparoscopic cholecystectomy (LC) curriculum. After competence, subjects were randomized on a 1:1 ratio and each performed 5 VRLCs. After each LC, intervention group subjects received video-based coaching by a surgeon, utilizing an adaptation of the GROW (Goals, Reality, Options, Wrap-up) coaching model. Control subjects viewed online surgical lectures. All subjects then performed 2 porcine LCs. Performance was assessed by blinded video review using validated global rating scales. RESULTS: Twenty subjects were recruited. No significant differences were observed between groups in baseline performance and in VRLC1. For each subsequent repetition, intervention subjects significantly outperformed controls on all global rating scales. Interventions outperformed controls in porcine LC1 [Global Operative Assessment of Laparoscopic Skills: (20.5 vs 15.5; P = 0.011), Objective Structured Assessment of Technical Skills: (21.5vs 14.5; P = 0.001), and Operative Performance Rating System: (26 vs 19.5; P = 0.001)] and porcine LC2 [Global Operative Assessment of Laparoscopic Skills: (28 vs 17.5; P = 0.005), Objective Structured Assessment of Technical Skills: (30 vs 16.5; P < 0.001), and Operative Performance Rating System: (36 vs 21; P = 0.004)]. Intervention subjects took significantly longer than controls in porcine LC1 (2920 vs 2004 seconds; P = 0.009) and LC2 (2297 vs 1683; P = 0.003). CONCLUSIONS: Despite equivalent exposure to practical laparoscopic skills training, video-based coaching enhanced the quality of laparoscopic surgical performance on both VR and porcine LCs, although at the expense of increased time. Video-based coaching is a feasible method of maximizing performance enhancement from every clinical exposure.


Asunto(s)
Colecistectomía Laparoscópica/educación , Competencia Clínica , Enseñanza/métodos , Grabación en Video , Adulto , Animales , Simulación por Computador , Curriculum , Femenino , Humanos , Curva de Aprendizaje , Masculino , Modelos Animales , Porcinos , Adulto Joven
15.
World J Surg ; 39(7): 1649-60, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25665671

RESUMEN

BACKGROUND: There is evidence of increased mortality and reduced efficiency in hospitals due to the annual changeover of junior doctors. This paper describes a framework to develop an intensive simulated week that will recreate experiences and situations that junixor surgical interns will likely face in their first weeks after graduation. METHODS: To provide evidence-based recommendations, a systematic review of published literature using the keywords 'surg*', 'boot', 'camp' was performed. Reports of the development, implementation or evaluation of a simulated skills course or 'boot camp' to prepare incoming surgical interns were analysed. RESULTS: Eighteen relevant articles were identified. Subjects on internship preparation courses have identified 'hands-on' training sessions to be very useful. In particular, mock pages have been identified as being valuable and didactic lectures have been identified as the weakest parts of the course. We first consider the end-users of the course and their associated learning needs. We subsequently discuss resources required and propose a strategy for the organisation of a course and selection of teaching faculty. Finally, we consider the costs involved in running a course. CONCLUSIONS: This paper proposes a framework for the development, organisation and implementation of an intensive simulation course to prepare graduating medical students for their role as junior surgical intern. Facilitating the step change in responsibility from student to surgical intern may improve patient safety in addition to reducing the associated anxiety for the clinician.


Asunto(s)
Competencia Clínica , Curriculum , Internado y Residencia/organización & administración , Costos y Análisis de Costo , Humanos , Internado y Residencia/economía , Seguridad del Paciente
16.
Surg Innov ; 22(6): 621-8, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25712086

RESUMEN

INTRODUCTION: The proximity of instrumentation in single-incision laparoscopic surgery (SILS) creates ergonomic challenges. An innovative method to reduce external collisions between instruments and handles is to use instruments of different lengths. This study evaluated the impact of instrument and laparoscope length on simulated SILS performance. METHODS: Performance was assessed using peg transfer (PEG) and pattern cutting (CUT) tasks from the Fundamentals of Laparoscopic Surgery (FLS) curriculum. Following baseline testing, surgeons were randomized into 3 trial arms: Control--standard length instruments and standard length laparoscope; group 1--one long instrument, one standard length instrument and standard length laparoscope; and group 2--standard length instruments and long laparoscope. Two phases were undertaken using a validated SILS-modified FLS box trainer: phase 1--25 repetitions of PEG and phase 2--5 repetitions of CUT. FLS scoring parameters measured performance and the Imperial College Surgical Assessment Device (ICSAD) captured motion analysis of hands. RESULTS: Twenty-three surgeons were recruited--control (n = 7), group 1 (n = 9), and group 2 (n = 7). No significant differences were observed in operative experience or baseline skills performance. Phase 1: Peak FLS score was significantly higher in group 1 compared with control (P = .009). Comparison of learning curves revealed learning plateau was significantly higher in group 1 compared with control (P = .010). Phase 2: Group 1 revealed a trend toward higher peak FLS scores over the control (P = .067). No significant differences in motion analysis of hands were demonstrated using ICSAD. CONCLUSIONS: This study demonstrates that using instruments of different lengths can improve simulated SILS performance.


Asunto(s)
Ergonomía/instrumentación , Laparoscopía/educación , Laparoscopía/instrumentación , Curva de Aprendizaje , Cirujanos/educación , Cirujanos/estadística & datos numéricos , Adulto , Simulación por Computador , Femenino , Humanos , Masculino
18.
Ann Surg ; 260(2): 236-43, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24646529

RESUMEN

OBJECTIVE: This study aimed to investigate the effects of a simulation-based curriculum for ward-based care on ward round (WR) performance. BACKGROUND: Variability in surgical outcomes does not relate to surgical skill alone. Prevention, diagnosis, and treatment of peri- and postoperative morbidity are dependent on provision of high-quality ward-based care. The focal point of this is the surgical WR. Although WR conduct is learned primarily through experience, a simulated environment and validated assessment tools may enable measurement and enhancement of WR quality. METHODS: Junior surgical residents were randomized either to a half-day educational intervention with lectures, structured feedback, and debriefing, or to standard practice (control). All conducted a standardized, validated, simulated WR of 3 patients. Surgical Ward Care Assessment Tool and W-NOTECHS rating scales were used for technical and nontechnical skills assessment, respectively, and compared between groups. Subjects completed pre- and posttest confidence questionnaires and feedback forms. RESULTS: Twenty-nine trainees were randomized to intervention (n = 14) or control (n = 15). Baseline confidence and demographics were equal between groups. Intervention group demonstrated better patient assessment: 63.5 ± 8.1% (control) versus 79.8 ± 11.9% (P = 0.002), management 56.0% ± 19.7% versus 72.2 ± 10.3% (P = 0.014), and nontechnical skills: W-NOTECHS 17.75 ± 2.06 versus 23.33 ± 1.21 (P < 0.001). Hundred percent of subjects felt that the curriculum improved their practice. CONCLUSIONS: Conducting WRs is a crucial skill but not currently subject to formal training. Implementation of a comprehensive curriculum for surgical WRs led to significant improvement in quality of patient assessment, management, and nontechnical skills. Improved WR performance may lead to earlier identification and amelioration of complications and improve patient outcomes.


Asunto(s)
Educación de Postgrado en Medicina , Cirugía General/educación , Cuidados Posoperatorios/normas , Simulación por Computador , Curriculum , Evaluación Educacional , Medicina Basada en la Evidencia , Humanos , Internado y Residencia , Simulación de Paciente , Complicaciones Posoperatorias/prevención & control , Garantía de la Calidad de Atención de Salud
19.
World J Surg ; 38(6): 1362-73, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24370544

RESUMEN

BACKGROUND: Recent evidence has demonstrated the variability in quality of postoperative care, as measured by rates of failure to rescue (FTR). The identification of structure- and process-related factors affecting the quality of postoperative care is the first step towards understanding and improving outcomes. The aim of this review is to review current evidence for structure and process factors affecting postoperative care. METHODS: A systematic review was conducted. Studies were selected that examined structure or process variables affecting FTR rates and postoperative outcomes. Quality analysis with Jadad and Newcastle-Ottawa scales was conducted and poor-quality studies were excluded. RESULTS: Thirty-seven studies were included in final analysis. Of these, 23 were related to enhanced recovery protocols in seven surgical specialties. Twenty-one of these 23 studies reported decreases in length of stay. Six studies also reported decreases in morbidity. No studies reported increases in stay duration or morbidity. Of the 16 studies that examined other structural and process factors, the strongest evidence was for the association between nursing ratios and FTR rates. The effects of hospital size, resources, and subspecialist care processes were less clear. CONCLUSION: Process-led care represents a clear, evidence-based approach that can be integrated on a local scale, without necessitating major structural or organisational change, to improve outcomes and may also be cost effective. To foster success, process improvement must be driven on a local level and backed up by appropriate understanding, education, and multidisciplinary involvement.


Asunto(s)
Competencia Clínica , Evaluación de Resultado en la Atención de Salud , Cuidados Posoperatorios/métodos , Complicaciones Posoperatorias/terapia , Procedimientos Quirúrgicos Operativos/efectos adversos , Análisis Costo-Beneficio , Medicina Basada en la Evidencia , Femenino , Humanos , Comunicación Interdisciplinaria , Masculino , Evaluación de Necesidades , Objetivos Organizacionales , Grupo de Atención al Paciente/organización & administración , Cuidados Posoperatorios/economía , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/economía , Procedimientos Quirúrgicos Operativos/economía , Procedimientos Quirúrgicos Operativos/métodos , Resultado del Tratamiento
20.
World J Surg ; 38(10): 2495-501, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24752363

RESUMEN

BACKGROUND: Postgraduate training is completed in a 5-year surgical residency program in the USA, compared with 10 years in the UK. The UK Joint Committee on Surgical Training (JCST) has described quality indicators for surgical training. Similar indicators can be inferred from the American Board of Surgery and Accreditation Council for Graduate Medical Education. This exploratory study compares postgraduate surgical training between two regions following their respective national programs. METHODS: A questionnaire was developed based on JCST quality indicators. This was distributed electronically to all general surgical residents in the University of Pennsylvania (UPenn) (N = 64) and North and South West Thames general surgical registrars in London (N = 182). RESULTS: A total of 76 residents (31 %) completed the questionnaire and all data presented are self-reported. When residents operate electively, an attending is scrubbed for 57 % of cases in London versus 83 % at UPenn (p < 0.001). During emergency surgery, residents operate without an attending in the operating room (OR) for 60 % of cases in London versus 2 % in UPenn (p < 0.001). London versus UPenn residents have a mean 3.6 versus 5.0 (p < 0.001) operating sessions and 0.7 versus 2.3 (p < 0.001) teaching hours per week. In London, 68 % of residents have regular gastrointestinal endoscopy sessions compared with 39 % at UPenn (p = 0.036). CONCLUSIONS: UPenn residents receive more supervised operating opportunities and scheduled teaching than their London counterparts. However, they have less independent operating experience and less exposure to gastrointestinal endoscopy training.


Asunto(s)
Procedimientos Quirúrgicos Electivos , Cirugía General/educación , Internado y Residencia/estadística & datos numéricos , Adulto , Procedimientos Quirúrgicos Electivos/estadística & datos numéricos , Urgencias Médicas , Endoscopía Gastrointestinal/educación , Retroalimentación , Femenino , Cirugía General/estadística & datos numéricos , Humanos , Londres , Masculino , Philadelphia , Indicadores de Calidad de la Atención de Salud , Encuestas y Cuestionarios
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