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Gaujoux S, Regimbeau JM, Piessen G, Truant S, Foissac F, Barbier L, Buc E, Adham M, Fuks D, Deguelte S, Muscari F, Sulpice L, Vaillant JC, Schwarz L, Sa Cunha A, Muzzolini M, Dousset B, Sauvanet A. Somatostatin Versus Octreotide for Prevention of Postoperative Pancreatic Fistula: The PREFIPS Randomized Clinical Trial: A FRENCH 007-ACHBT Study. Ann Surg 2024; 280:179-187. [PMID: 38662619 DOI: 10.1097/sla.0000000000006313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
OBJECTIVE Pharmacological prevention of postoperative pancreatic fistula (POPF) after pancreatectomy is open to debate. The present study compares clinically significant POPF rates in patients randomized between somatostatin versus octreotide as prophylactic treatment. METHODS Multicentric randomized controlled open study in patient's candidate for pancreaticoduodenectomy (PD) or distal pancreatectomy (DP) comparing somatostatin continuous intravenous infusion for 7 days versus octreotid 100 μg, every 8 hours subcutaneous injection for 7 days, stratified by procedure (PD vs DP) and size of the main pancreatic duct (>4 mm) on grade B/C POPF rates at 90 days based on an intention-to-treat analysis. RESULTS Of 763 eligible patients, 651 were randomized: 327 in the octreotide arm and 324 in the somatostatin arm, with comparable the stratification criteria - type of surgery and main pancreatic duct dilatation. Most patients had PD (n=480; 73.8%), on soft/normal pancreas (n=367; 63.2%) with a nondilated main pancreatic duct (n=472; 72.5%), most often for pancreatic adenocarcinoma (n=311; 47.8%). Almost all patients had abdominal drainage (n=621; 96.1%) and 121 (19.5%) left the hospital with the drain in place (median length of stay=16 days). A total of 153 patients (23.5%) developed a grade B/C POPF with no difference between both groups: 24.1%: somatostatin arm and 22.9%: octreotide arm (χ 2 test, P =0.73, ITT analysis). Absence of statistically significant difference persisted after adjustment for stratification variables and in per-protocol analysis. CONCLUSION Continuous intravenous somatostatin is not statistically different from subcutaneous octreotide in the prevention of grade B/C POPF after pancreatectomy. FINDINGS In the PREFIPS Randomized Clinical Trial including 651 patients, a total of 153 patients (23.5%) developed a grade B/C POPF with no significant difference between both groups: 24.1%: somatostatin arm and 22.9%: octreotide arm (χ 2 test, P =0.73, ITT analysis). Absence of statistically significant difference persisted after adjustment for stratification variables and in per-protocol analysis.
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Affiliation(s)
- Sébastien Gaujoux
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France
- Sorbonne University, Paris, France
| | - Jean-Marc Regimbeau
- Department of Oncology and Digestive Surgery, CHU Amiens-Picardie, Amiens, France
- University of Picardie Jules-Vernes, Amiens, France
| | - Guillaume Piessen
- Department of Digestive and Oncological Surgery, CHU Lille, Lille, France
- University Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, Lille, France
| | - Stéphanie Truant
- University Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, Lille, France
- Department of Digestive Surgery and Transplantation, CHU Lille, Lille, France
| | - Frantz Foissac
- Clinical Research Unit Necker Cochin Hospital, APHP, Paris, France
| | - Louise Barbier
- Department of Digestive Surgery and Liver Transplantation, CHU Tours Trousseau, Tours, France
- University of Tours, Tours, France
| | - Emmanuel Buc
- Department of Digestive and Hepatobiliary Surgery, Estaing Hospital, CHU Clermont-Ferrand, Clermont-Ferrand, France
- Clermont-Ferrand Faculty of Medicine, Clermont-Ferrand, France
| | - Mustapha Adham
- Digestive Surgery Unit, Edouard Herriot Hospital, Lyon, France
- Hospices Civils of Lyon University, Lyon, France
| | - David Fuks
- Department of Digestive, Pancreatic, Hepatobiliary and Endocrine Surgery, Cochin Hospital, APHP, Paris, France
- University of Paris, Paris, France
| | - Sophie Deguelte
- Digestive Surgery Department, Reims University Hospital, Robert Debré Hospital, Reims, France
- Reims University Hospital, Robert Debré Hospital, Reims, France
| | - Fabrice Muscari
- Digestive Surgery and Liver Transplantation Department, Toulouse University Hospital, Toulouse, France
- Toulouse University, Toulouse, France
| | - Laurent Sulpice
- Department of Hepatobiliary and Digestive Surgery Hospital Rennes, Rennes, France
- Rennes University, Rennes, France
| | - Jean-Christophe Vaillant
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France
- Sorbonne University, Paris, France
| | - Lilian Schwarz
- Department of Digestive Surgery, Charles Nicolle Hospital, Rouen, France
- Rouen University, Rouen, France
| | - Antonio Sa Cunha
- Department of Hepatobiliary Surgery and Liver Transplantation, Paul Brousse Hospital, Villejuif, France
- Paris-Saclay University, Saclay, France
| | - Milena Muzzolini
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France
- Sorbonne University, Paris, France
| | - Bertrand Dousset
- Department of Digestive, Pancreatic, Hepatobiliary and Endocrine Surgery, Cochin Hospital, APHP, Paris, France
- University of Paris, Paris, France
| | - Alain Sauvanet
- Department of Hepatobiliary Surgery, Beaujon Hospital, Clichy, France
- University Paris Cité, Paris, France
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Chaouch MA, Dziri C, Uranues S, Fingerhut A. Pancreatic stump closure after distal pancreatectomy: Systematic review and meta-analysis of randomized clinical trials comparing non-autologous versus no reinforcement: Value of prediction intervals. Am J Surg 2024; 229:92-98. [PMID: 38184462 DOI: 10.1016/j.amjsurg.2023.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/17/2023] [Accepted: 12/30/2023] [Indexed: 01/08/2024]
Abstract
BACKGROUND This meta-analysis of randomized trials aimed to assess the benefits and harms of non-autologous versus no reinforcement of the pancreatic stump following distal pancreatectomy (DP). METHODS It was performed in accordance with PRISMA 2020 and AMSTAR 2 Guidelines. (registered in PROSPERO ID: EROCRD42021286863). RESULTS Nine relevant articles (between 2009 and 2021) were retrieved, comparing non-autologous reinforcement (757 patients) with non-reinforcement (740 patients) after PD. Pooled analysis showed a statistically significant lower rate of postoperative pancreatic fistula (POPF) in the reinforcement group (RR = 0.677; 95 % CI [0.479, 0.956], p = 0.027). The 95 % predictive interval (0.267-1.718) showed heterogeneity. Non-autologous reinforcement other than with "Tachosil®" was effective (subgroup analysis). No statistically significant differences were found between the two groups with regard to secondary outcomes. CONCLUSIONS This meta-analysis showed that covering the stump with non-autologous reinforcement other than Tachosil® had a preventive effect on the onset of POPF.
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Affiliation(s)
- Mohamed Ali Chaouch
- Department of Visceral & Digestive Surgery -Monastir Medical School -Monastir University, Tunisia.
| | - Chadli Dziri
- Tunis University El Manar, Medical School of Tunis, Director of Honoris Medical Simulation Center, Tunis, Tunisia.
| | - Selman Uranues
- Section for Surgical Research, Department of Surgery, Medical University of Graz, Graz, Austria.
| | - Abe Fingerhut
- Section for Surgical Research, Department of Surgery, Medical University of Graz, Graz, Austria; Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Minimally Invasive Surgery Center, Shanghai, PR China.
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Lai M, Zhou S, He S, Cheng Y, Cheng N, Deng Y, Ding X. Fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. Cochrane Database Syst Rev 2023; 6:CD009621. [PMID: 37335216 PMCID: PMC10291948 DOI: 10.1002/14651858.cd009621.pub5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
BACKGROUND Postoperative pancreatic fistula (POPF) is one of the most frequent and potentially life-threatening complications following pancreatic surgery. Fibrin sealants have been used in some centres to reduce POPF rate. However, the use of fibrin sealant during pancreatic surgery is controversial. This is an update of a Cochrane Review last published in 2020. OBJECTIVES To evaluate the benefits and harms of fibrin sealant use for the prevention of POPF (grade B or C) in people undergoing pancreatic surgery compared to no fibrin sealant use. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, two other databases, and five trials registers on 09 March 2023, together with reference checking, citation searching, and contacting study authors to identify additional studies. SELECTION CRITERIA We included all randomised controlled trials (RCTs) that compared fibrin sealant (fibrin glue or fibrin sealant patch) versus control (no fibrin sealant or placebo) in people undergoing pancreatic surgery. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. MAIN RESULTS We included 14 RCTs, randomising 1989 participants, comparing fibrin sealant use versus no fibrin sealant use for different locations: stump closure reinforcement (eight trials), pancreatic anastomosis reinforcement (five trials), or main pancreatic duct occlusion (two trials). Six RCTs were carried out in single centres; two in dual centres; and six in multiple centres. One RCT was conducted in Australia; one in Austria; two in France; three in Italy; one in Japan; two in the Netherlands; two in South Korea; and two in the USA. The mean age of the participants ranged from 50.0 years to 66.5 years. All RCTs were at high risk of bias. Application of fibrin sealants to pancreatic stump closure reinforcement after distal pancreatectomy We included eight RCTs involving 1119 participants: 559 were randomised to the fibrin sealant group and 560 to the control group after distal pancreatectomy. Fibrin sealant use may result in little to no difference in the rate of POPF (risk ratio (RR) 0.94, 95% confidence interval (CI) 0.73 to 1.21; 5 studies, 1002 participants; low-certainty evidence) and overall postoperative morbidity (RR 1.20, 95% CI 0.98 to 1.48; 4 studies, 893 participants; low-certainty evidence). After fibrin sealant use, approximately 199 people (155 to 256 people) out of 1000 developed POPF compared with 212 people out of 1000 when no fibrin sealant was used. The evidence is very uncertain about the effect of fibrin sealant use on postoperative mortality (Peto odds ratio (OR) 0.39, 95% CI 0.12 to 1.29; 7 studies, 1051 participants; very low-certainty evidence) and total length of hospital stay (mean difference (MD) 0.99 days, 95% CI -1.83 to 3.82; 2 studies, 371 participants; very low-certainty evidence). Fibrin sealant use may reduce the reoperation rate slightly (RR 0.40, 95% CI 0.18 to 0.90; 3 studies, 623 participants; low-certainty evidence). Serious adverse events were reported in five studies (732 participants), and there were no serious adverse events related to fibrin sealant use (low-certainty evidence). The studies did not report quality of life or cost-effectiveness. Application of fibrin sealants to pancreatic anastomosis reinforcement after pancreaticoduodenectomy We included five RCTs involving 519 participants: 248 were randomised to the fibrin sealant group and 271 to the control group after pancreaticoduodenectomy. The evidence is very uncertain about the effect of fibrin sealant use on the rate of POPF (RR 1.34, 95% CI 0.72 to 2.48; 3 studies, 323 participants; very low-certainty evidence), postoperative mortality (Peto OR 0.24, 95% CI 0.05 to 1.06; 5 studies, 517 participants; very low-certainty evidence), reoperation rate (RR 0.74, 95% CI 0.33 to 1.66; 3 studies, 323 participants; very low-certainty evidence), and total hospital cost (MD -1489.00 US dollars, 95% CI -3256.08 to 278.08; 1 study, 124 participants; very low-certainty evidence). After fibrin sealant use, approximately 130 people (70 to 240 people) out of 1000 developed POPF compared with 97 people out of 1000 when no fibrin sealant was used. Fibrin sealant use may result in little to no difference both in overall postoperative morbidity (RR 1.02, 95% CI 0.87 to 1.19; 4 studies, 447 participants; low-certainty evidence) and in total length of hospital stay (MD -0.33 days, 95% CI -2.30 to 1.63; 4 studies, 447 participants; low-certainty evidence). Serious adverse events were reported in two studies (194 participants), and there were no serious adverse events related to fibrin sealant use (very low-certainty evidence). The studies did not report quality of life. Application of fibrin sealants to pancreatic duct occlusion after pancreaticoduodenectomy We included two RCTs involving 351 participants: 188 were randomised to the fibrin sealant group and 163 to the control group after pancreaticoduodenectomy. The evidence is very uncertain about the effect of fibrin sealant use on postoperative mortality (Peto OR 1.41, 95% CI 0.63 to 3.13; 2 studies, 351 participants; very low-certainty evidence), overall postoperative morbidity (RR 1.16, 95% CI 0.67 to 2.02; 2 studies, 351 participants; very low-certainty evidence), and reoperation rate (RR 0.85, 95% CI 0.52 to 1.41; 2 studies, 351 participants; very low-certainty evidence). Fibrin sealant use may result in little to no difference in the total length of hospital stay (median 16 to 17 days versus 17 days; 2 studies, 351 participants; low-certainty evidence). Serious adverse events were reported in one study (169 participants; low-certainty evidence): more participants developed diabetes mellitus when fibrin sealants were applied to pancreatic duct occlusion, both at three months' follow-up (33.7% fibrin sealant group versus 10.8% control group; 29 participants versus 9 participants) and 12 months' follow-up (33.7% fibrin sealant group versus 14.5% control group; 29 participants versus 12 participants). The studies did not report POPF, quality of life, or cost-effectiveness. AUTHORS' CONCLUSIONS Based on the current available evidence, fibrin sealant use may result in little to no difference in the rate of POPF in people undergoing distal pancreatectomy. The evidence is very uncertain about the effect of fibrin sealant use on the rate of POPF in people undergoing pancreaticoduodenectomy. The effect of fibrin sealant use on postoperative mortality is uncertain in people undergoing either distal pancreatectomy or pancreaticoduodenectomy.
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Affiliation(s)
- Mingliang Lai
- Department of Clinical Laboratory, Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, China
| | - Shiyi Zhou
- Department of Pharmacy, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Sirong He
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yao Cheng
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Nansheng Cheng
- Department of Bile Duct Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yilei Deng
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiong Ding
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Sánchez-Velázquez P, Pueyo-Périz E, Álamo JM, Suarez Artacho G, Gómez Bravo MÁ, Marcello M, Vicente E, Quijano Y, Ferri V, Caruso R, Dorcaratto D, Sabater L, González Chávez P, Noguera J, Navarro Gonzalo A, Bellido-Luque J, Téllez-Marques C, Ielpo B, Burdio F. Radiofrequency-assisted transection of the pancreas versus stapler in distal pancreatectomy: study protocol for a multicentric randomised clinical trial (TRANSPAIRE). BMJ Open 2022; 12:e062873. [PMID: 36332946 PMCID: PMC9639090 DOI: 10.1136/bmjopen-2022-062873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION To date, no pancreatic stump closure technique has been shown to be superior to any other in distal pancreatectomy. Although several studies have shown a trend towards better results in transection using a radiofrequency device (radiofrequency-assisted transection (RFT)), no randomised trial for this purpose has been performed to date. Therefore, we designed a randomised clinical trial, with the hypothesis that this technique used in distal pancreatectomies is superior in reducing clinically relevant postoperative pancreatic fistula (CR-POPF) than mechanical closures. METHODS AND ANALYSIS TRANSPAIRE is a multicentre randomised controlled trial conducted in seven Spanish pancreatic centres that includes 112 patients undergoing elective distal pancreatectomy for any indication who will be randomly assigned to RFT or classic stapler transections (control group) in a ratio of 1:1. The primary outcome is the CR-POPF percentage. Sample size is calculated with the following assumptions: 5% one-sided significance level (α), 80% power (1-β), expected POPF in control group of 32%, expected POPF in RFT group of 10% and a clinically relevant difference of 22%. Secondary outcomes include postoperative results, complications, radiological evaluation of the pancreatic stump, metabolomic profile of postoperative peritoneal fluid, survival and quality of life. Follow-ups will be carried out in the external consultation at 1, 6 and 12 months postoperatively. ETHICS AND DISSEMINATION TRANSPAIRE has been approved by the CEIM-PSMAR Ethics Committee. This project is being carried out in accordance with national and international guidelines, the basic principles of protection of human rights and dignity established in the Declaration of Helsinki (64th General Assembly, Fortaleza, Brazil, October 2013), and in accordance with regulations in studies with biological samples, Law 14/2007 on Biomedical Research will be followed. We have defined a dissemination strategy, whose main objective is the participation of stakeholders and the transfer of knowledge to support the exploitation of activities. REGISTRATION DETAILS ClinicalTrials.gov Registry (NCT04402346).
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Affiliation(s)
- Patricia Sánchez-Velázquez
- Department of Surgery, Hospital del Mar, Barcelona, Spain
- Department of Surgery, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Eva Pueyo-Périz
- Department of Surgery, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - J M Álamo
- Department of Surgery, University Hospital Virgen del Rocío, Sevilla, Spain
| | | | | | - Manuel Marcello
- Department of Surgery, Alcorcon Hospital Foundation, Alcorcon, Spain
| | - Emilio Vicente
- Department of Surgery, Hospital Universitario Sanchinarro, Madrid, Spain
| | - Yolanda Quijano
- Department of Surgery, Hospital Universitario Sanchinarro, Madrid, Spain
| | - Valentina Ferri
- Department of Surgery, Hospital Universitario Sanchinarro, Madrid, Spain
| | - Riccardo Caruso
- Department of Surgery, Hospital Universitario Sanchinarro, Madrid, Spain
| | - Dimitri Dorcaratto
- Liver, Biliary and Pancreatic Unit, Department of General Surgery. Biomedical Research Institute INCLIVA, Hospital Clínico Valencia, Valencia, Spain
| | - Luis Sabater
- Liver, Biliary and Pancreatic Unit, Department of General Surgery. Biomedical Research Institute INCLIVA, Hospital Clínico Valencia, Valencia, Spain
| | | | - Jose Noguera
- Hospital Juan Canalejo de La Coruña, A Coruña, Spain
| | | | | | | | - Benedetto Ielpo
- Department of Surgery, Hospital del Mar Medical Research Institute, Barcelona, Spain
- Parc Salut Mar Hospital, Barcelona, Spain
| | - Fernando Burdio
- Department of Surgery, Hospital del Mar Medical Research Institute, Barcelona, Spain
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5
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Șandra-Petrescu F, Tzatzarakis E, Mansour Basha M, Rückert F, Reissfelder C, Birgin E, Rahbari NN. Impact of spleen preservation on the incidence of postoperative pancreatic fistula after distal pancreatectomy: Is less more? Pancreatology 2022; 22:1013-1019. [PMID: 35945100 DOI: 10.1016/j.pan.2022.07.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/11/2022] [Accepted: 07/24/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND Postoperative pancreatic fistula (POPF) remains a major complication after distal pancreatectomy (DP) with a significant impact on patients' quality of life. There is limited evidence that preservation of the spleen reduces the risk of POPF. Therefore, we aimed to investigate the impact of splenectomy on perioperative outcome. METHODS Data from patients who underwent DP for malignant and benign disease at our institution between 2004 and 2021 were reviewed. Patients were grouped according to spleen preservation (SP-DP) and splenectomy (DPS). Intraoperative parameters and postoperative outcomes were compared between groups. Univariable and multivariable analyses were used to investigate factors that influence the occurrence of clinically relevant (cr)POPF. RESULTS A total of 199 patients were included, of whom 61 (30.7%) patients underwent SP-DP. Patients who underwent SP-DP had a significantly lower rate of crPOPF (p = 0.022), shorter hospital stay (p = 0.003), and less readmissions (p = 0.012). On multivariate analysis, obesity (OR 2.88, p = 0.021), benign lesions (OR 2.35, p = 0.018), postoperative acute pancreatitis (OR 2.53, p = 0.028), and splenectomy (OR 2.83, p = 0.011) were independent risk factors associated with the onset of crPOPF. DISCUSSION Preservation of the spleen reduces the risk of crPOPF in patients undergoing distal pancreatectomy for benign and malignant disease.
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Affiliation(s)
- Flavius Șandra-Petrescu
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Emmanouil Tzatzarakis
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Mamdouh Mansour Basha
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Felix Rückert
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christoph Reissfelder
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Emrullah Birgin
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Nuh N Rahbari
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
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Pueyo-Périz E, Téllez-Marquès C, Radosevic A, Morató O, Visa L, Ilzarbe L, Berjano E, de Vicente E, Poves I, Ielpo B, Grande L, Burdío F, Sánchez-Velázquez P. Radiofrequency-assisted transection of the pancreas vs stapler in distal pancreatectomy: a propensity score matched cohort analysis. Sci Rep 2022; 12:7486. [PMID: 35523857 PMCID: PMC9076639 DOI: 10.1038/s41598-022-11583-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 04/25/2022] [Indexed: 12/20/2022] Open
Abstract
To demonstrate the efficacy of radiofrequency for pancreatic stump closure in reducing the incidence of postoperative pancreatic fistula (POPF) in distal pancreatectomy (DP) compared with mechanical transection methods. Despite all the different techniques of pancreatic stump closure proposed for DP, best practice for avoiding POPF remains an unresolved issue, with an incidence of up to 30% regardless of center volume or surgical expertise. DP was performed in a cohort of patients by applying radiofrequency to stump closure (RF Group) and compared with mechanical closure (Control Group). A propensity score (PS) matched cohort study was carried out to minimize bias from nonrandomized treatment assignment. Cohorts were matched by PS accounting for factors significantly associated with either undergoing RF transection or mechanical closure through logistic regression analysis. The primary end-point was the incidence of clinically relevant POPF (CR-POPF). Of 89 patients included in the whole cohort, 13 case patients from the RF-Group were 1:1 matched to 13 control patients. In both the first independent analysis of unmatched data and subsequent adjustment to the overall propensity score-matched cohort, a higher rate of CR-POPF in the Control Group compared with the RF-Group was detected (25.4% vs 5.3%, p = 0.049 and 53.8% vs 0%; p = 0.016 respectively). The RF Group showed better outcomes in terms of readmission rate (46.2% vs 0%, p = 0.031). No significant differences were observed in terms of mortality, major complications (30.8% vs 0%, p = 0.063) or length of hospital stay (5.7 vs 5.2 days, p = 0.89). Findings suggest that the RF-assisted technique is more efficacious in reducing CR-POPF than mechanical pancreatic stump closure.
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Affiliation(s)
- E Pueyo-Périz
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain.
| | - C Téllez-Marquès
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain
| | - A Radosevic
- Department of Radiology, Hospital del Mar, Passeig Maritim 25-29, Barcelona, Spain
| | - O Morató
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain
| | - L Visa
- Department of Oncology, Hospital del Mar-IMIM-CIBERONC, Passeig Maritim 25-29, Barcelona, Spain
| | - L Ilzarbe
- Department of Gastroenterology, Hospital del Mar, Passeig Maritim 25-29, Barcelona, Spain
| | - E Berjano
- BioMIT, Department of Electronic Engineering, Universitat Politècnica de València, Valencia, Spain
| | - E de Vicente
- Department of Surgery, Hospital Sanchinarro, Madrid, Spain
| | - I Poves
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain
| | - B Ielpo
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain
| | - L Grande
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain
| | - F Burdío
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain
| | - P Sánchez-Velázquez
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University Hospital del Mar-IMIM (Hospital del Mar Medical Research Institute), Passeig Maritim 25-29, Barcelona, Spain.
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Effects of Fasting and Administration of Octreotide Acetate and Ulinastatin on Clinical Outcomes of Pancreatic Fistula after Pancreatoduodenectomy. Int Surg 2022. [DOI: 10.9738/intsurg-d-21-00022.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective: Postoperative pancreatic fistula (POPF) following pancreaticoduodenectomy is the most serious complication of these surgical procedures; therefore, we examine the effectiveness of fasting, and administration of octreotide acetate and ulinastatin as a method of prevention. Summary of Background Data : Although various drug therapies and surgical techniques have been used for the treatment of POPF, no decisive treatment for POPF exists. Methods: The clinical course of 30 patients who developed POPF was retrospectively evaluated and compared between no dietary intake (n=18), octreotide acetate (n=8), and ulinastatin (n=8) using an overlapping design. Patients were allocated to either the dietary intake or fasting (no dietary intake) group, and those in the no dietary intake group were further divided into the octreotide acetate or ulinastatin group. Results: Length of hospitalization was longer for the no dietary intake group than for the dietary intake group (p=0.002). When considering only grade B or C POPF cases, the no dietary intake group had a longer length of hospitalization and a higher white blood cell count on day 7 after the diagnosis of POPF than the dietary intake group (p<0.05). The white blood cell count was also higher in the octreotide acetate group than in the ulinastatin group (p=0.021). The length of hospitalization was shorter in the ulinastatin group than in the octreotide acetate group (p=0.025). Conclusions: The use of no dietary intake, octreotide acetate, and ulinastatin do not seem to contribute to the clinical course of patients with POPF after pancreatoduodenectomy.
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Matsumoto I, Kamei K, Satoi S, Murase T, Matsumoto M, Kawaguchi K, Yoshida Y, Dongha L, Takebe A, Nakai T, Takeyama Y. Efficacy of the slow firing method using a reinforced triple-row stapler for preventing postoperative pancreatic fistula during laparoscopic distal pancreatectomy. Surg Today 2021; 52:260-267. [PMID: 34322726 DOI: 10.1007/s00595-021-02344-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/07/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE Postoperative pancreatic fistula (POPF) remains the most clinically relevant complication of laparoscopic distal pancreatectomy (LDP). The present study evaluated the efficacy of the "slow firing method" using a reinforced triple-row stapler (Covidien, Tokyo, Japan) during LDP. METHODS This retrospective single-center study included 73 consecutive patients who underwent LDP using the slow firing method. A black cartridge was used in all patients. The primary endpoint was the rate of clinically relevant POPF (CR-POPF) after LDP. Secondary endpoints included perioperative outcomes and factors associated with CR-POPF as well as the correlation between the transection time and thickness of the pancreas. RESULTS Four patients (5.5%) developed CR-POPF (grade B). Overall morbidity rates, defined as grade ≥ II and ≥ III according to the Clavien-Dindo classification, were 21 and 11%, respectively. The median postoperative hospital stay was 10 days. Preoperative diabetes (13.6 vs. 0.2%, P = 0.044) and thickness of the pancreas ≥ 15 mm (13.8% vs. 0%, P = 0.006) were identified as independent risk factors for CR-POPF. The median transection time was 16 (8-29) min. CONCLUSION The slow firing method using a reinforced triple-row stapler for pancreatic transection is simple, safe, and effective for preventing CR-POPF after LDP.
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Affiliation(s)
- Ippei Matsumoto
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan.
| | - Keiko Kamei
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Shumpei Satoi
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Takaaki Murase
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Masataka Matsumoto
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Kohei Kawaguchi
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Yuta Yoshida
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Lee Dongha
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Atsushi Takebe
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Takuya Nakai
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Yoshifumi Takeyama
- Department of Surgery, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
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Serra F, Bonaduce I, Rossi EG, De Ruvo N, Cautero N, Gelmini R. The using of sealants in pancreatic surgery: A Systematic Review. Ann Med Surg (Lond) 2021; 64:102244. [PMID: 33898024 PMCID: PMC8053887 DOI: 10.1016/j.amsu.2021.102244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 12/03/2022] Open
Abstract
Background POPF derives from the pancreatic stump, which follows pancreatic resection and the pancreatoenteric anastomosis following pancreaticoduodenectomy. Since 1978 sealants have been used in pancreatic surgery to prevent pancreatic fistula after resection of the pancreatic head and tail or for the management of trauma and the treatment of low-output pancreatic fistula. Different types of fibrin sealants have been evaluated for their potential to reduce the occurrence of POPF. Methods A systematic search of the electronic literature was performed using PubMed, Cochrane Library, and Scopus databases to obtain access to all publications, especially clinical trials, randomised controlled trials, and systematic reviews concerning fibrin sealants pancreatic surgery. Searching for “fibrin sealants pancreas,” we found a total of 73 results on Pubmed, 61 on Scopus, and 14 on Cochrane Library (148 total results). Results Eighteen studies were found on literature, following the criteria already described, concerning the use of fibrin sealants in pancreatic surgery. All articles described were published in the period between 1989 and 2019. Most of these were single centre studies. A total of 1032 patients were enrolled in this review. In the studies, sealants were used to reinforce pancreatic anastomoses and for the occlusion of the main pancreatic duct. Conclusion CR-POPF is a fearful complication of pancreatic surgery; among the possible solutions to reduce the risk of onset, sealants were used on the pancreatic stump; today the sealants should be considered such as an option to reduce the CR-POPF, but the routine use in clinical practice has to be validated. Discuss the use of sealants in pancreatic surgery. Compare the application of sealants on pancreatic stump and the effect on p-popf Describe the previous experiences reported in literature.
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Affiliation(s)
- Francesco Serra
- Department of Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo, 71 41100, Modena, Italy
| | - Isabella Bonaduce
- Department of Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo, 71 41100, Modena, Italy
| | - Elena Giulia Rossi
- Department of Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo, 71 41100, Modena, Italy
| | - Nicola De Ruvo
- Department of Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo, 71 41100, Modena, Italy
| | - Nicola Cautero
- Department of Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo, 71 41100, Modena, Italy
| | - Roberta Gelmini
- Department of Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo, 71 41100, Modena, Italy
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Kemmochi A, Tamura T, Shimizu Y, Owada Y, Ozawa Y, Hisakura K, Oda T, Kawano Y, Hanawa T, Ohkohchi N. A novel hydrogel sheet prevents postoperative pancreatic fistula in a rat model. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2020; 28:192-201. [PMID: 33179402 PMCID: PMC7984228 DOI: 10.1002/jhbp.867] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/26/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022]
Abstract
Aim To evaluate the efficacy of a novel hydrogel sheet in preventing postoperative pancreatic fistula (POPF). Background Postoperative pancreatic fistula is a life‐threatening complication. As no study has reported the use of hydrogel sheets in preventing POPF, their effectiveness for that purpose remains unclear. Methods A novel hydrogel sheet made of polyvinyl alcohol (PVA) was prepared by the freeze‐thaw method. The pancreatic ducts and surrounding pancreatic parenchyma of rats were transected to induce a pancreatic fistula. Next, the sheet was attached to the transection site. Ascitic fluid amylase and lipase concentrations were measured. Neoveil®, a nonwoven polyglycolic acid (PGA) felt, is already clinically used as an absorbable reinforcing material at pancreatic transection sites. Neoveil® was used for comparison, as was VIEWGEL®, which is marketed as a wound dressing. Results The hydrogel sheet remained in place 48 hours postoperatively. The ascitic amylase concentrations in the control, VIEWGEL®‐treated, Neoveil®‐treated, and hydrogel‐treated rats, respectively, were 4992.4 ± 5355.7, 1068.4 ± 269.1, 730.2 ± 425.2, and 303.1 ± 240.1 IU/L; the ascitic lipase concentrations were 2279.8 ± 3395.2, 169.5 ± 100.6, 90.4 ± 71.0, and 86.8 ± 59.8 IU/L. The ascitic amylase and lipase levels were significantly lower in the hydrogel group than in the other groups (P < .05). Conclusions This novel hydrogel sheet effectively prevents pancreatic fistulas and has promising clinical application potential.
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Affiliation(s)
- Akira Kemmochi
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takafumi Tamura
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yoshio Shimizu
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yohei Owada
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yusuke Ozawa
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Katsuji Hisakura
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tatsuya Oda
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yayoi Kawano
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Takehisa Hanawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Nobuhiro Ohkohchi
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Mezza T, Cefalo CMA, Cinti F, Quero G, Pontecorvi A, Alfieri S, Holst JJ, Giaccari A. Endocrine and Metabolic Insights from Pancreatic Surgery. Trends Endocrinol Metab 2020; 31:760-772. [PMID: 32830029 DOI: 10.1016/j.tem.2020.07.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/25/2020] [Accepted: 07/21/2020] [Indexed: 02/06/2023]
Abstract
Although it is well established that diabetes can also develop as a result of diseases or maneuvers on the exocrine pancreas, the complex relationship between glucose disorders and underlying pancreatic disease is still debated. There is evidence that several features linked to pancreatic diseases can modify endocrine and metabolic conditions before and after surgery. However, pancreatic surgery provides a rare opportunity to correlate in vivo endocrine and metabolic pathways with ex vivo pancreatic samples, to examine the endocrine and metabolic effects of acute islet removal, and finally to clarify the pathogenesis of diabetes. This approach could therefore represent a unique method to shed light on the molecular mechanisms, predicting factors, and metabolic consequences of insulin resistance, islet plasticity, β cell failure, and type 2 diabetes.
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Affiliation(s)
- Teresa Mezza
- Endocrinologia e Diabetologia, Fondazione Policlinico Universitario Agostino Gemelli Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Chiara M A Cefalo
- Endocrinologia e Diabetologia, Fondazione Policlinico Universitario Agostino Gemelli Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Cinti
- Endocrinologia e Diabetologia, Fondazione Policlinico Universitario Agostino Gemelli Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giuseppe Quero
- Chirurgia Digestiva, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alfredo Pontecorvi
- Endocrinologia e Diabetologia, Fondazione Policlinico Universitario Agostino Gemelli Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Sergio Alfieri
- Chirurgia Digestiva, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Jens J Holst
- Novo Nordisk Foundation (NNF) Center for Basic Metabolic Research and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Andrea Giaccari
- Endocrinologia e Diabetologia, Fondazione Policlinico Universitario Agostino Gemelli Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy; Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy.
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Comparison of surgical outcomes between isolated pancreaticojejunostomy, isolated gastrojejunostomy, and conventional pancreaticojejunostomy after pancreaticoduodenectomy: a systematic review and meta-analysis. BMC Gastroenterol 2020; 20:279. [PMID: 32819274 PMCID: PMC7439684 DOI: 10.1186/s12876-020-01415-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND We aimed to compare the safety and effectiveness of the following procedures after pancreaticoduodenectomy: isolated pancreaticojejunostomy, isolated gastrojejunostomy, and conventional pancreaticojejunostomy. METHODS We performed a systematic search of the following databases: PubMed, Embase, Web of Science, the Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov until 1 January 2020. Pooled odds ratios (OR) or weighted mean differences (WMD) with 95% confidence intervals (CIs) were calculated using STATA 12.0 statistical software. RESULTS Thirteen studies involving 1942 patients were included in this study. Pooled analysis showed that reoperation rates following isolated pancreaticojejunostomy were lower reoperation than with conventional pancreaticojejunostomy (OR = 0.36, 95% CI: 0.15-0.86, p = 0.02, respectively), and that isolated pancreaticojejunostomy required longer operation time vs conventional pancreaticojejunostomy (WMD = 43.61, 95% CI: 21.64-65.58, P = 0.00). Regarding postoperative pancreatic fistula, clinically-relevant postoperative pancreatic fistula, delayed gastric emptying, clinically-relevant delayed gastric emptying, bile leakage, hemorrhage, reoperation, length of postoperative hospital stay, major complications, overall complications, and mortality, we found no significant differences for either isolated pancreaticojejunostomy versus conventional pancreaticojejunostomy or isolated gastrojejunostomy versus conventional pancreaticojejunostomy. CONCLUSIONS This study showed that isolated pancreaticojejunostomy was associated with a lower reoperation rate, but required longer operation time vs conventional pancreaticojejunostomy. Considering the limitations, high-quality randomized controlled trials are required.
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14
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Deng Y, He S, Cheng Y, Cheng N, Gong J, Gong J, Zeng Z, Zhao L. Fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. Cochrane Database Syst Rev 2020; 3:CD009621. [PMID: 32157697 PMCID: PMC7064369 DOI: 10.1002/14651858.cd009621.pub4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Postoperative pancreatic fistula is one of the most frequent and potentially life-threatening complications following pancreatic resections. Fibrin sealants have been used in some centers to reduce postoperative pancreatic fistula. However, the use of fibrin sealants during pancreatic surgery is controversial. This is an update of a Cochrane Review last published in 2018. OBJECTIVES To assess the safety, effectiveness, and potential adverse effects of fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. SEARCH METHODS We searched trial registers and the following biomedical databases: the Cochrane Library (2019, Issue 2), MEDLINE (1946 to 13 March2019), Embase (1980 to 11 March 2019), Science Citation Index Expanded (1900 to 13 March 2019), and Chinese Biomedical Literature Database (CBM) (1978 to 13 March 2019). SELECTION CRITERIA We included all randomised controlled trials that compared fibrin sealant (fibrin glue or fibrin sealant patch) versus control (no fibrin sealant or placebo) in people undergoing pancreatic surgery. DATA COLLECTION AND ANALYSIS Two review authors independently identified the trials for inclusion, collected the data, and assessed the risk of bias. We performed the meta-analyses using Review Manager 5. We calculated the risk ratio (RR) for dichotomous outcomes (or a Peto odds ratio (OR) for very rare outcomes), and the mean difference (MD) for continuous outcomes, with 95% confidence intervals (CIs). MAIN RESULTS We included 12 studies involving 1604 participants in the review. Application of fibrin sealants to pancreatic stump closure reinforcement after distal pancreatectomy We included seven studies involving 860 participants: 428 were randomised to the fibrin sealant group and 432 to the control group after distal pancreatectomy. Fibrin sealants may lead to little or no difference in postoperative pancreatic fistula (fibrin sealant 19.3%; control 20.1%; RR 0.96, 95% CI 0.68 to 1.35; 755 participants; four studies; low-quality evidence). Fibrin sealants may also lead to little or no difference in postoperative mortality (0.3% versus 0.5%; Peto OR 0.52, 95% CI 0.05 to 5.03; 804 participants; six studies; low-quality evidence), or overall postoperative morbidity (28.5% versus 23.2%; RR 1.23, 95% CI 0.97 to 1.58; 646 participants; three studies; low-quality evidence). We are uncertain whether fibrin sealants reduce reoperation rate (2.0% versus 3.8%; RR 0.51, 95% CI 0.15 to 1.71; 376 participants; two studies; very low-quality evidence) or length of hospital stay (MD 0.99 days, 95% CI -1.83 to 3.82; 371 participants; two studies; very low-quality evidence). The studies did not report serious adverse events, quality of life, or cost effectiveness. Application of fibrin sealants to pancreatic anastomosis reinforcement after pancreaticoduodenectomy We included four studies involving 393 participants: 186 were randomised to the fibrin sealant group and 207 to the control group after pancreaticoduodenectomy. We are uncertain whether fibrin sealants reduce postoperative pancreatic fistula (16.7% versus 11.7%; RR 1.14, 95% CI 0.28 to 4.69; 199 participants; two studies; very low-quality evidence). We are uncertain whether fibrin sealants reduce postoperative mortality (0.5% versus 2.4%; Peto OR 0.26, 95% CI 0.05 to 1.32; 393 participants; four studies; low-quality evidence) or length of hospital stay (MD 0.01 days, 95% CI -3.91 to 3.94; 323 participants; three studies; very low-quality evidence). There is probably little or no difference in overall postoperative morbidity (52.6% versus 50.3%; RR 1.04, 95% CI 0.87 to 1.24; 323 participants; three studies; moderate-quality evidence) between the groups. We are uncertain whether fibrin sealants reduce reoperation rate (5.2% versus 7.7%; RR 0.74, 95% CI 0.33 to 1.66; 323 participants; three studies, very low-quality evidence). The studies did not report serious adverse events, quality of life, or cost effectiveness. Application of fibrin sealants to pancreatic duct occlusion after pancreaticoduodenectomy We included two studies involving 351 participants: 188 were randomised to the fibrin sealant group and 163 to the control group after pancreaticoduodenectomy. Fibrin sealants may lead to little or no difference in postoperative mortality (8.4% versus 6.1%; Peto OR 1.41, 95% CI 0.63 to 3.13; 351 participants; two studies; low-quality evidence) or length of hospital stay (median 16 to 17 days versus 17 days; 351 participants; two studies; low-quality evidence). We are uncertain whether fibrin sealants reduce overall postoperative morbidity (32.0% versus 27.6%; RR 1.16, 95% CI 0.67 to 2.02; 351 participants; two studies; very low-quality evidence), or reoperation rate (13.6% versus 16.0%; RR 0.85, 95% CI 0.52 to 1.41; 351 participants; two studies; very low-quality evidence). Serious adverse events were reported in one study (169 participants; low-quality evidence): more participants developed diabetes mellitus when fibrin sealants were applied to pancreatic duct occlusion, both at three months' follow-up (33.7% fibrin sealant group versus 10.8% control group; 29 participants versus 9 participants) and 12 months' follow-up (33.7% fibrin sealant group versus 14.5% control group; 29 participants versus 12 participants). The studies did not report postoperative pancreatic fistula, quality of life, or cost effectiveness. AUTHORS' CONCLUSIONS Based on the current available evidence, fibrin sealants may have little or no effect on postoperative pancreatic fistula in people undergoing distal pancreatectomy. The effects of fibrin sealants on the prevention of postoperative pancreatic fistula are uncertain in people undergoing pancreaticoduodenectomy.
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Affiliation(s)
- Yilei Deng
- The First Affiliated Hospital of Zhengzhou UniversityDepartment of Hepatopancreatobiliary SurgeryNo. 1, Jianshe East RoadZhengzhouHenan ProvinceChina450000
| | - Sirong He
- Chongqing Medical UniversityDepartment of Immunology, College of Basic MedicineNo. 1 Yixue RoadChongqingChina450000
| | - Yao Cheng
- The Second Affiliated Hospital, Chongqing Medical UniversityDepartment of Hepatobiliary SurgeryNo. 74, Lin Jiang Road, ChongqingChongqingChina400010
| | - Nansheng Cheng
- West China Hospital, Sichuan UniversityDepartment of Bile Duct SurgeryNo. 37, Guo Xue XiangChengduSichuanChina610041
| | - Jianping Gong
- The Second Affiliated Hospital, Chongqing Medical UniversityDepartment of Hepatobiliary SurgeryNo. 74, Lin Jiang Road, ChongqingChongqingChina400010
| | - Junhua Gong
- First Affiliated Hospital of Kunming Medical UniversityOrgan Transplant CenterNo. 295, Xi Chang RoadKunmingYunnanChina650032
| | - Zhong Zeng
- First Affiliated Hospital of Kunming Medical UniversityOrgan Transplant CenterNo. 295, Xi Chang RoadKunmingYunnanChina650032
| | - Longshuan Zhao
- The First Affiliated Hospital of Zhengzhou UniversityDepartment of Hepatopancreatobiliary SurgeryNo. 1, Jianshe East RoadZhengzhouHenan ProvinceChina450000
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Pancreatic Fistula and Delayed Gastric Emptying Are the Highest-Impact Complications After Whipple. J Surg Res 2020; 250:80-87. [PMID: 32023494 DOI: 10.1016/j.jss.2019.12.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/13/2019] [Accepted: 12/28/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Patients undergoing pancreaticoduodenectomy are at risk for a variety of adverse postoperative events, including generic complications such as surgical site infection (SSI) and procedure-specific complications such as postoperative pancreatic fistula (POPF) and delayed gastric emptying (DGE). Knowing which complications have the greatest effect on these patients can help to maximize the value of quality improvement resources. This study aims to quantify the effect of specific postoperative complications on clinical outcomes and resource utilization after pancreaticoduodenectomy. MATERIALS AND METHODS Patients undergoing pancreaticoduodenectomy between January 2014 and December 2016, who were included in the pancreatectomy-targeted American College of Surgeons National Surgical Quality Improvement Program, were assessed for the development of specific postoperative complications, along with the contributions of these complications toward subsequent clinical outcome and resource utilization. The main outcomes were 30-d end-organ dysfunction, mortality, prolonged hospitalization, nonrounding discharge status, and hospital readmission. Risk-adjusted population attributable fractions were estimated for each complication-outcome pair, with the population attributable fraction representing the anticipated percentage reduction in the outcome where the complication was able to be completely prevented. RESULTS About 10,922 patients undergoing pancreaticoduodenectomy were included for analysis. The most common postoperative complications were DGE (17.3%), POPF (10.1%), incisional SSI (10.0%), and organ/space SSI (6.2%). POPF and DGE were the only complications that demonstrated sizable effects for all clinical and resource utilization outcomes studied. Other complications had sizable effects for only a few of the outcomes or had small effects for all the outcomes. CONCLUSIONS Quality initiatives seeking to minimize the burden imposed by postpancreaticoduodenectomy morbidity should focus on POPF and DGE rather than generic complications.
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Shen J, Zhang Y, Hu J, Wei R, Wu H. Albumin difference as a new predictor of pancreatic fistula following distal pancreatectomy: a retrospective study of 211 consecutive patients. Langenbecks Arch Surg 2020; 405:55-62. [PMID: 31900605 DOI: 10.1007/s00423-019-01849-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/11/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE The level of albumin declines after surgery, and whether the difference between preoperative and postoperative albumin levels on postoperative day 1 has an effect on the development of postoperative pancreatic fistula (POPF) after distal pancreatectomy (DP) is unclear. Our aim was to evaluate the effect of albumin difference on POPF. METHODS A retrospective analysis of consecutive patients who had undergone DP between January 2016 and October 2018 at a single institution was conducted. Patient demographic data and perioperative data were analysed using univariate and multivariate models. Pancreatic fistula was defined by the 2016 International Study Group of Pancreatic Surgery criteria. All patients were followed for up to 90 days. RESULTS A total of 211 consecutive patients were identified. The POPF rate was 15.64%, and no 90-day mortality was observed. Five predictors were independently associated with POPF: albumin difference (OR 6.60, 95% CI 2.36-18.45, P < 0.001), pancreatic texture (OR 4.15, 95% CI 1.62-10.63, P = 0.003), operative time (OR 3.13, 95% CI 1.19-8.24, P = 0.021), intraoperative fluid transfusion (OR 4.85, 95% CI 1.70-13.79, P = 0.003), and cardiovascular disease (OR 5.38, 95% CI 1.99-14.55, P = 0.001). CONCLUSIONS Although DP can be performed with a low rate of mortality, POPF remains a common complication. Albumin difference is a new, accessible predictor for POPF following DP.
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Affiliation(s)
- Jian Shen
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- , Wuhan, 430022, China
| | - Yushun Zhang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- , Wuhan, 430022, China
| | - Jin Hu
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ruozheng Wei
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- , Wuhan, 430022, China
| | - Heshui Wu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- , Wuhan, 430022, China.
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Reinforced stapler versus ultrasonic dissector for pancreatic transection and stump closure for distal pancreatectomy: A propensity matched analysis. Surgery 2019; 166:271-276. [DOI: 10.1016/j.surg.2019.02.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/12/2019] [Accepted: 02/15/2019] [Indexed: 02/08/2023]
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18
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Xiang Y, Wu J, Lin C, Yang Y, Zhang D, Xie Y, Yao X, Zhang X. Pancreatic reconstruction techniques after pancreaticoduodenectomy: a review of the literature. Expert Rev Gastroenterol Hepatol 2019; 13:797-806. [PMID: 31282769 DOI: 10.1080/17474124.2019.1640601] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Introduction: Postoperative pancreatic fistula is the most troublesome complication after pancreaticoduodenectomy, and is an on-going area of concern for pancreatic surgeons. The specific pancreatic reconstruction technique is an important factor influencing the development of postoperative pancreatic fistula after pancreaticoduodenectomy. Areas covered: In this paper, we briefly introduced the definition and relevant influencing factors of postoperative pancreatic fistula. We performed a search of all meta-analyses published in the last 5 years and all published randomized controlled trials comparing different pancreatic anastomotic techniques, and we evaluated the advantages and disadvantages of different techniques. Expert opinion: No individual anastomotic method can completely avoid postoperative pancreatic fistula. Selecting specific techniques tailored to the patient's situation intraoperatively may be key to reducing the incidence of postoperative pancreatic fistula.
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Affiliation(s)
- Yien Xiang
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
| | - Jiacheng Wu
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
| | - Chao Lin
- b Department of Hepatobiliary and Pancreatic Surgery, Jilin University Third Affiliated Hospital , Changchun , Jilin , CN
| | - Yongsheng Yang
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
| | - Dan Zhang
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
| | - Yingjun Xie
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
| | - Xiaoxiao Yao
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
| | - Xuewen Zhang
- a Department of Hepatobiliary and Pancreatic Surgery, Jilin University Second Hospital , Changchun , Jilin , CN
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Lower phosphate levels following pancreatectomy is associated with postoperative pancreatic fistula formation. HPB (Oxford) 2019; 21:834-840. [PMID: 30503649 DOI: 10.1016/j.hpb.2018.10.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 10/16/2018] [Accepted: 10/25/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Whereas hypophosphatemia following hepatectomy is associated with decreased morbidity, hypophosphatemia following pancreatectomy may be associated with increased morbidity, including the development of postoperative pancreatic fistula (POPF). This study aimed to evaluate the relationship between postoperative hypophosphatemia and POPF formation. METHODS Patients from our institutional Research Patient Data Registry who underwent pancreatectomy from 2001 to 2017 were included. POPF was defined according to the International Study Group for Pancreatic Fistulas (ISGPF) criteria and according to internal criteria for drain removal. Postoperative serum phosphate levels, demographics, and comorbidities were evaluated. Unadjusted and adjusted analyses were performed. RESULTS 2342 patients underwent pancreatic resection. Mean age was 63.0 years (SD 14.3), 51.2% were male, and 58.7% had pancreatic cancer. Of all resections, 67.7% were pancreaticoduodenectomies. In unadjusted analysis, phosphate levels were significantly and persistently lower on POD 0 and POD 2-5 in patients who developed POPF's. In adjusted analysis, POD 2 phosphate <1.75 predicted an additional 46% increased odds of POPF (OR 1.46 95% CI 1.06-2.01; p = 0.02). Distal pancreatectomy was independently associated with POPF formation when compared to pancreaticoduodenectomy (OR 1.72 95% CI 1.18-2.51; p = 0.005). CONCLUSION Lower phosphate levels in the early post-operative period following both proximal and distal pancreatectomies is associated with increased risk of POPF.
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Zhao N, Cui J, Yang Z, Xiong J, Wu H, Wang C, Peng T. Natural history and therapeutic strategies of post-pancreatoduodenectomy abdominal fluid collections: Ten-year experience in a single institution. Medicine (Baltimore) 2019; 98:e15792. [PMID: 31145305 PMCID: PMC6708627 DOI: 10.1097/md.0000000000015792] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
TRIAL DESIGN The aim of this study was to identify independent risk factors for post-pancreatoduodenectomy (post-PD) abdominal fluid collections (AFCs) and evaluate our management protocol on it. METHODS A retrospective analysis of consecutive 2064 cases who underwent PD over the past decade in 1 single center was conducted. The patients were divided into AFCs and non-AFCs group. Univariable and multivariate logistic regression analysis was performed to identify independent risk factors of AFCs. The AFCs group was compared with the non-AFCs group with respect to the incidence of postoperative outcomes. The characteristics of AFCs were further analyzed in terms of clinical manifestations. RESULTS Two thousand sixty-four cases with pancreaticoduodenectomy were recruited and 15% of them were found AFCs. Diameter of main pancreatic duct ≤3 mm was found to be an independent predictor of AFCs (P < .001), along with soft pancreatic texture (P = .002), mesenterico-portal vein resection (P < .001), and estimated intraoperative blood loss >800 mL (P < .001). The incidence of mild complications was significantly higher in AFCs group than in non-AFCs group (34% vs 20%, P < .001), whereas no significant differences were noted in the rate of severe complications between these 2 groups (15% vs 15%, P = .939). CONCLUSION Enhanced drainage is recommended as an effective measure to decrease the incidence of severe complications caused by post-PD AFCs.
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Affiliation(s)
- Ning Zhao
- Department of Gastrointestinal Surgery
| | - Jing Cui
- Department of Pancreatic Surgery, Wuhan Union Hospital, Wuhan, Hubei, P.R. China
| | - Zhiyong Yang
- Department of Pancreatic Surgery, Wuhan Union Hospital, Wuhan, Hubei, P.R. China
| | - Jiongxin Xiong
- Department of Pancreatic Surgery, Wuhan Union Hospital, Wuhan, Hubei, P.R. China
| | - Heshui Wu
- Department of Pancreatic Surgery, Wuhan Union Hospital, Wuhan, Hubei, P.R. China
| | - Chunyou Wang
- Department of Pancreatic Surgery, Wuhan Union Hospital, Wuhan, Hubei, P.R. China
| | - Tao Peng
- Department of Pancreatic Surgery, Wuhan Union Hospital, Wuhan, Hubei, P.R. China
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Does the Anatomy of the Transected Pancreatic Neck Influence Post Whipple's Operation Pancreatic Fistula? Indian J Surg Oncol 2019; 10:31-36. [PMID: 30948868 DOI: 10.1007/s13193-018-0747-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 04/03/2018] [Indexed: 12/24/2022] Open
Abstract
Few studies correlate anatomical parameters of the transected pancreatic neck to occurrence of the dangerous complication-post Whipple's pancreaticoduodenectomy pancreatic fistula. To evaluate the correlation between anatomical details of the transected neck of the pancreas and post-operative pancreatic fistula (POPF) following Whipple's pancreaticoduodenectomy. Observational study. The study included 66 patients undergoing Whipple's pancreaticoduodenectomy with pancreaticojejunostomy at tertiary care centre between December 2009 and December 2014. Student's t test, Fisher's exact test, Pearson's chi-squared test and forward stepwise. Clinically relevant POPF (grade B and C) was noted in 12 patients. Morbidity/mortality was 30.30% and 4.54% respectively. Among the fistula v/s no fistula groups, (a) mean thickness of the pancreatic stump was 12.17 ± 1.40 mm v/s 14.94 ± 1.87 mm (P = 0.000), (b) mean width of the pancreatic stump was 24.33 ± 4.14 mm v/s 25.87 ± 4.02 mm (P = 0.238) and (c) mean pancreatic duct (PD) diameter was 2.92 ± 0.79 mm v/s 4.27 ± 1.39 mm (P = 0.001). Mean distances of PD from anterior, posterior, superior and inferior pancreatic borders in the fistula group v/s no fistula group were 6.08 ± 1.62 mm, 3.17 ± 0.72 mm, 9.92 ± 2.15 mm, and 11.42 ± 3.45 mm v/s 5.93 ± 1.71 mm, 4.83 ± 1.26 mm, 11.83 ± 2.79 mm and 9.96 ± 3.25 mm respectively. Eleven of 38 patients (28.9%) with soft pancreas developed POPF. Pancreatic duct < 3 mm diameter, < 3 mm from posterior border, < 12 mm from superior border, pancreatic neck thickness < 12 mm and soft pancreas consistency were significantly associated with POPF.
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Characterization and Optimal Management of High-risk Pancreatic Anastomoses During Pancreatoduodenectomy. Ann Surg 2019; 267:608-616. [PMID: 28594741 DOI: 10.1097/sla.0000000000002327] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The aim of this study was to identify the optimal fistula mitigation strategy following pancreaticoduodenectomy. BACKGROUND The utility of technical strategies to prevent clinically relevant postoperative pancreatic fistula (CR-POPF) following pancreatoduodenectomy (PD) may vary by the circumstances of the anastomosis. The Fistula Risk Score (FRS) identifies a distinct high-risk cohort (FRS 7 to 10) that demonstrates substantially worse clinical outcomes. The value of various fistula mitigation strategies in these particular high-stakes cases has not been previously explored. METHODS This multinational study included 5323 PDs performed by 62 surgeons at 17 institutions. Mitigation strategies, including both technique related (ie, pancreatogastrostomy reconstruction; dunking; tissue patches) and the use of adjuvant strategies (ie, intraperitoneal drains; anastomotic stents; prophylactic octreotide; tissue sealants), were evaluated using multivariable regression analysis and propensity score matching. RESULTS A total of 522 (9.8%) PDs met high-risk FRS criteria, with an observed CR-POPF rate of 29.1%. Pancreatogastrostomy, prophylactic octreotide, and omission of externalized stents were each associated with an increased rate of CR-POPF (all P < 0.001). In a multivariable model accounting for patient, surgeon, and institutional characteristics, the use of external stents [odds ratio (OR) 0.45, 95% confidence interval (95% CI) 0.25-0.81] and the omission of prophylactic octreotide (OR 0.49, 95% CI 0.30-0.78) were independently associated with decreased CR-POPF occurrence. In the propensity score matched cohort, an "optimal" mitigation strategy (ie, externalized stent and no prophylactic octreotide) was associated with a reduced rate of CR-POPF (13.2% vs 33.5%, P < 0.001). CONCLUSIONS The scenarios identified by the high-risk FRS zone represent challenging anastomoses associated with markedly elevated rates of fistula. Externalized stents and omission of prophylactic octreotide, in the setting of intraperitoneal drainage and pancreaticojejunostomy reconstruction, provides optimal outcomes.
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Abstract
Postoperative pancreatic fistula (POPF) is the most common and also the most threatening complication following distal pancreatectomy. For this reason, morbidity and mortality of this operation remain still high. Over the last two decades, many different studies have been performed aiming to reduce the rate and the severity of POPF. However, effective treatments to prevent or avoid clinically relevant pancreatic fistula are still unclear. In this review, we discuss the current evidence on such a relevant topic.
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Affiliation(s)
- Fabio Ausania
- HPB and Transplant Surgery, Clinic Hospital, Barcelona, Spain -
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Chhaidar A, Mabrouk MB, Ali AB. Isolated Roux loop pancreaticojejunostomy versus conventional pancreaticojejunostomy after pancreaticoduodenectomy: A case-control study. Int J Surg Case Rep 2018; 53:223-227. [PMID: 30428436 PMCID: PMC6232583 DOI: 10.1016/j.ijscr.2018.10.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/05/2018] [Accepted: 10/13/2018] [Indexed: 12/22/2022] Open
Abstract
Pancreaticojejunostomy is commonly used in the reconstruction after pancreaticoduodenectomy, but the incidence of POPF remains high. There are a number of theoretical advantages to the isolated Roux loop pancreaticojejunostomy reconstruction, mainly related to the physical separation of bile acids and the pancreaticojejunostomy. The use of an isolated Roux loop pancreaticojejunostomy seems to be associated with decrease in the rate of postoperative PF in patients undergoing PD.
Objectives The aim of this study was to compare the postoperative outcomes of isolated Roux loop pancreaticojejunostomy (IPJ) and conventional pancreaticojejunostomy (CPJ) after pancreaticoduodenectomy (PD). Methods Data of patients who underwent IPJ were compared with those of a pair-matched equal number of patients undergoing CPJ. The matching was performed according to age, gender, nature of the lesion indicating PD and the texture of the pancreas. The primary outcome was the rate of postoperative pancreatic fistula (POPF). Secondary outcomes included operative time, day to resumption of oral feeding, postoperative morbidity and mortality. Results Seventy patients treated by PD (35 patients in each group) were included in the study. The two groups were comparable with regards to the pre-operative and intra-operative parameters. Postoperative pancreatic fistula developed in 10 out of 35 patients in the CPJ group and 3 out of 35 patients in the IPJ group (p = 0.031). Nine CPJ patients and one IPJ patient had POPF of type B or C (p = 0.006). Re-laparotomy was significantly more frequent in the CPJ group (11.1% versus 34.6%; p = 0.04). Time to resumption of oral feeding was shorter in the IPJ group (p = 0.001). Conclusions The use of IPJ is associated with decrease in the rate of postoperative PF in patients undergoing PD. In addition, patients with IPJ reconstruction have lesser need for re-laparotomy and early resumption of oral feeding.
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Affiliation(s)
- Amine Chhaidar
- Department of Surgery, Sahloul Hospital, Sousse, Tunisia.
| | | | - Ali Ben Ali
- Department of Surgery, Sahloul Hospital, Sousse, Tunisia.
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Crafa F, Esposito F, Noviello A, Moles N, Coppola Bottazzi E, Lombardi C, Miro A, Lombardi G. How to prevent the postoperative pancreatic fistula with an ethylene vinyl alcohol copolymer (Onyx®): A proposal of a new technique. Ann Hepatobiliary Pancreat Surg 2018; 22:248-252. [PMID: 30215046 PMCID: PMC6125277 DOI: 10.14701/ahbps.2018.22.3.248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 06/10/2018] [Accepted: 06/14/2018] [Indexed: 12/19/2022] Open
Abstract
Backgrounds/Aims Despite the advances in identifying risk factors, improving operative technique, and postoperative patient care, pancreatic leakage after pancreatic resection remains a highly debated topic. The aim of this study is to describe our technique and our initial experience with the intraoperative embolization of the main pancreatic duct with an Ethylene Vinyl Alcohol Copolymer (Onyx®). Methods Two patients of 63 and 64 years underwent pancreaticoduodenectomy for a cholangiocarcinoma of the extrahepatic bile duct and a pancreatic adenocarcinoma, respectively. At the time of pancreatic parenchyma resection, a Wirsung duct was identified and catheterized. A wirsungography was done and then, embolization with Onyx® was carried out under fluoroscopic control. Results Neither of the patients developed a postoperative pancreatic fistula. They were discharged to home on the 17th and 18th postoperative day, respectively. At the last follow-up, no recurrence was found. The two patients became diabetics; both needed the support of supplementary pancreatic enzymes. Conclusions To our knowledge, we are the first to describe this technique, which seems safe and reliable. Studies on this subject with more patients are needed to confirm the validity of this procedure.
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Affiliation(s)
- Francesco Crafa
- Oncological and General Surgery Unit, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Francesco Esposito
- Oncological and General Surgery Unit, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Adele Noviello
- Oncological and General Surgery Unit, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Nicola Moles
- Oncological and General Surgery Unit, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Enrico Coppola Bottazzi
- Oncological and General Surgery Unit, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Carmelo Lombardi
- Department of Radiology, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Antonio Miro
- Oncological and General Surgery Unit, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
| | - Giulio Lombardi
- Department of Radiology, "St. Giuseppe Moscati" Hospital of National Relevance and High Specialty, Avellino, Italy
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Gong J, He S, Cheng Y, Cheng N, Gong J, Zeng Z. Fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. Cochrane Database Syst Rev 2018; 6:CD009621. [PMID: 29934987 PMCID: PMC6513198 DOI: 10.1002/14651858.cd009621.pub3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Postoperative pancreatic fistula is one of the most frequent and potentially life-threatening complications following pancreatic resections. Fibrin sealants are introduced to reduce postoperative pancreatic fistula by some surgeons. However, the use of fibrin sealants during pancreatic surgery is controversial. This is an update of a Cochrane Review last published in 2016. OBJECTIVES To assess the safety, effectiveness, and potential adverse effects of fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. SEARCH METHODS We searched trial registers and the following biomedical databases: the Cochrane Library (2018, Issue 4), MEDLINE (1946 to 12 April 2018), Embase (1980 to 12 April 2018), Science Citation Index Expanded (1900 to 12 April 2018), and Chinese Biomedical Literature Database (CBM) (1978 to 12 April 2018). SELECTION CRITERIA We included all randomized controlled trials that compared fibrin sealant (fibrin glue or fibrin sealant patch) versus control (no fibrin sealant or placebo) in people undergoing pancreatic surgery. DATA COLLECTION AND ANALYSIS Two review authors independently identified the trials for inclusion, collected the data, and assessed the risk of bias. We performed the meta-analyses using Review Manager 5. We calculated the risk ratio (RR) for dichotomous outcomes (or a Peto odds ratio (OR) for very rare outcomes), and the mean difference (MD) for continuous outcomes, with 95% confidence intervals (CIs). MAIN RESULTS We included 11 studies involving 1462 participants in the review.Application of fibrin sealants to pancreatic stump closure reinforcement after distal pancreatectomyWe included seven studies involving 860 participants: 428 were randomized to the fibrin sealant group and 432 to the control group after distal pancreatectomy. Fibrin sealants may lead to little or no difference in postoperative pancreatic fistula (fibrin sealant 19.3%; control 20.1%; RR 0.96, 95% CI 0.68 to 1.35; 755 participants; four studies; low-quality evidence). Fibrin sealants may also lead to little or no difference in postoperative mortality (0.3% versus 0.5%; Peto OR 0.52, 95% CI 0.05 to 5.03; 804 participants; six studies; low-quality evidence), or overall postoperative morbidity (28.5% versus 23.2%; RR 1.23, 95% CI 0.97 to 1.58; 646 participants; three studies; low-quality evidence). We are uncertain whether fibrin sealants reduce reoperation rate (2.0% versus 3.8%; RR 0.51, 95% CI 0.15 to 1.71; 376 participants; two studies; very low-quality evidence). There is probably little or no difference in length of hospital stay between the groups (12.1 days versus 11.4 days; MD 0.32 days, 95% CI -1.06 to 1.70; 755 participants; four studies; moderate-quality evidence). The studies did not report serious adverse events, quality of life, or cost effectiveness.Application of fibrin sealants to pancreatic anastomosis reinforcement after pancreaticoduodenectomyWe included three studies involving 251 participants: 115 were randomized to the fibrin sealant group and 136 to the control group after pancreaticoduodenectomy. We are uncertain whether fibrin sealants reduce postoperative pancreatic fistula (1.6% versus 6.2%; RR 0.25, 95% CI 0.01 to 5.06; 57 participants; one study; very low-quality evidence). Fibrin sealants may lead to little or no difference in postoperative mortality (0.1% versus 0.7%; Peto OR 0.15, 95% CI 0.00 to 7.76; 251 participants; three studies; low-quality evidence) or length of hospital stay (12.8 days versus 14.8 days; MD -1.58 days, 95% CI -3.96 to 0.81; 181 participants; two studies; low-quality evidence). We are uncertain whether fibrin sealants reduce overall postoperative morbidity (33.7% versus 34.7%; RR 0.97, 95% CI 0.65 to 1.45; 181 participants; two studies; very low-quality evidence), or reoperation rate (7.6% versus 9.2%; RR 0.83, 95% CI 0.33 to 2.11; 181 participants; two studies, very low-quality evidence). The studies did not report serious adverse events, quality of life, or cost effectiveness.Application of fibrin sealants to pancreatic duct occlusion after pancreaticoduodenectomyWe included two studies involving 351 participants: 188 were randomized to the fibrin sealant group and 163 to the control group after pancreaticoduodenectomy. Fibrin sealants may lead to little or no difference in postoperative mortality (8.4% versus 6.1%; Peto OR 1.41, 95% CI 0.63 to 3.13; 351 participants; two studies; low-quality evidence) or length of hospital stay (17.0 days versus 16.5 days; MD 0.58 days, 95% CI -5.74 to 6.89; 351 participants; two studies; low-quality evidence). We are uncertain whether fibrin sealants reduce overall postoperative morbidity (32.0% versus 27.6%; RR 1.16, 95% CI 0.67 to 2.02; 351 participants; two studies; very low-quality evidence), or reoperation rate (13.6% versus 16.0%; RR 0.85, 95% CI 0.52 to 1.41; 351 participants; two studies; very low-quality evidence). Serious adverse events were reported in one study: more participants developed diabetes mellitus when fibrin sealants were applied to pancreatic duct occlusion, both at three months' follow-up (33.7% fibrin sealant group versus 10.8% control group; 29 participants versus 9 participants) and 12 months' follow-up (33.7% fibrin sealant group versus 14.5% control group; 29 participants versus 12 participants). The studies did not report postoperative pancreatic fistula, quality of life, or cost effectiveness. AUTHORS' CONCLUSIONS Based on the current available evidence, fibrin sealants may have little or no effect on postoperative pancreatic fistula in people undergoing distal pancreatectomy. The effects of fibrin sealants on the prevention of postoperative pancreatic fistula are uncertain in people undergoing pancreaticoduodenectomy.
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Affiliation(s)
- Junhua Gong
- First Affiliated Hospital of Kunming Medical UniversityOrgan Transplant CenterNo. 295, Xi Chang RoadKunmingChina650032
| | - Sirong He
- Chongqing Medical UniversityDepartment of Immunology, College of Basic MedicineNo. 1 Yixue RoadChongqingChina450000
| | - Yao Cheng
- The Second Affiliated Hospital, Chongqing Medical UniversityDepartment of Hepatobiliary SurgeryChongqingChina
| | - Nansheng Cheng
- West China Hospital, Sichuan UniversityDepartment of Bile Duct SurgeryNo. 37, Guo Xue XiangChengduChina610041
| | - Jianping Gong
- The Second Affiliated Hospital, Chongqing Medical UniversityDepartment of Hepatobiliary SurgeryChongqingChina
| | - Zhong Zeng
- First Affiliated Hospital of Kunming Medical UniversityOrgan Transplant CenterNo. 295, Xi Chang RoadKunmingChina650032
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Pancreatic stump closure techniques and pancreatic fistula formation after distal pancreatectomy: Meta-analysis and single-center experience. PLoS One 2018; 13:e0197553. [PMID: 29897920 PMCID: PMC5999073 DOI: 10.1371/journal.pone.0197553] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 05/04/2018] [Indexed: 12/18/2022] Open
Abstract
Background Pancreatic fistula/PF is the most frequent and feared complication after distal pancreatectomy/DP. However, the safest technique of pancreatic stump closure remains an ongoing debate. Here, we aimed to compare the safety of different pancreatic stump closure techniques for preventing PF during DP. Methods We performed a PRISMA-based meta-analysis of all relevant studies that compared at least two techniques of stump closure during DP with regard to PF rates/PFR. We further performed a retrospective analysis of our institutional PFR in correlation with stump closure techniques. Results 8301 studies were initially identified. From these, ten randomized controlled trials/RCTs, eleven prospective and 59 retrospective studies were eligible. Stapler closure (26%vs.31%, OR:0.73, p = 0.02), combination of stapler and suture (30%vs.33%, OR:0.70, p = 0.05), or stump anastomosis (14%vs.28%, OR:0.51, p = 0.02) were associated with lower PFR than suture closure alone. Spleen preservation/splenectomy, or laparoscopic/open DP, TachoSil®, fibrin-like glue-application, or bioabsorbable-stapler-reinforcements (Seamguard®) did not influence PFR after DP. In contrast, autologous patches (falciform ligament/seromuscular patches) resulted in lower PFR than no patch application (21.9%vs.25,8%, OR:0.60, p = 0.006). In our institution, the major three techniques of stump closure resulted in comparable PFR (suture:27%, stapler:29%, or combination:24%). However, selective suturing/clipping of the main pancreatic duct during pancreatic stump closure prevented severe PF (p = 0.02). Conclusion After DP, stapler closure, pancreatic anastomosis, or falciform/seromuscular patches lead to lower PFR than suture closure alone. However, the differences are rather small, and further RCTs are needed to test these effects. Selective closure of the main pancreatic duct during stump closure may prevent severe PF.
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Kowalsky SJ, Zenati MS, Dhir M, Schaefer EG, Dopsovic A, Lee KK, Hogg ME, Zeh HJ, Vollmer CM, Zureikat AH. Postoperative narcotic use is associated with development of clinically relevant pancreatic fistulas after distal pancreatectomy. Surgery 2018; 163:747-752. [DOI: 10.1016/j.surg.2017.10.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 10/02/2017] [Accepted: 10/24/2017] [Indexed: 02/08/2023]
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Nahm CB, Connor SJ, Samra JS, Mittal A. Postoperative pancreatic fistula: a review of traditional and emerging concepts. Clin Exp Gastroenterol 2018; 11:105-118. [PMID: 29588609 PMCID: PMC5858541 DOI: 10.2147/ceg.s120217] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Postoperative pancreatic fistula (POPF) remains the major cause of morbidity after pancreatic resection, affecting up to 41% of cases. With the recent development of a consensus definition of POPF, there has been a large number of reports examining various risk factors, prediction models, and mitigation strategies for this costly complication. Despite these strategies, the rates of POPF have not significantly diminished. Here, we review the literature and evidence regarding both traditional and emerging concepts in POPF prediction, prevention, and management. In particular, we review the evidence for the association between postoperative pancreatitis and POPF, and present a novel proposed mechanism for the development of POPF.
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Affiliation(s)
- Christopher B Nahm
- Upper Gastrointestinal Surgical Unit, Royal North Shore Hospital, Sydney, Australia.,Northern Clinical School, Sydney Medical School, The University of Sydney, Sydney, Australia.,Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, Australia
| | - Saxon J Connor
- Department of Surgery, Christchurch Hospital, Christchurch, New Zealand
| | - Jaswinder S Samra
- Upper Gastrointestinal Surgical Unit, Royal North Shore Hospital, Sydney, Australia.,Northern Clinical School, Sydney Medical School, The University of Sydney, Sydney, Australia.,Australian Pancreatic Centre, Sydney, Australia
| | - Anubhav Mittal
- Upper Gastrointestinal Surgical Unit, Royal North Shore Hospital, Sydney, Australia.,Northern Clinical School, Sydney Medical School, The University of Sydney, Sydney, Australia.,Australian Pancreatic Centre, Sydney, Australia
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Maeda T, Kayashima H, Imai D, Takeishi K, Harada N, Tsujita E, Tsutsui S, Matsuda H. Evaluation of Drain Amylase Level after Pancreaticoduodenectomy with Special Reference to Delayed Pancreatic Fistula. Am Surg 2018. [DOI: 10.1177/000313481808400325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Postoperative pancreatic fistula (PF) is a relatively frequent and occasionally fatal complication of pancreatoduodenectomy (PD). Several risk factors for PF have been reported, including high drain amylase level (D-AMY). Among the 140 consecutive patients who underwent PD, we analyzed 110 cases with D-AMY measurements over time after PD. According to the D-AMY change, we divided patients into five patterns and defined delayed PF cases. We analyzed clinical characteristics, including serum amylase and D-AMY, and examined the correlation between the period of drain insertion and PF grade. In 15 delayed PF cases, 12 cases were grade B or C, pancreatic cancer was less frequent, pancreatic ducts were smaller, and soft pancreas texture was more commonly observed. The D-AMYon postoperative day (POD) 1 was higher in cases of delayed PF compared with non-PF cases ( P < 0.0001). In 28 cases with drain removal before POD 7, grade B or C PF was not observed afterward. The average D-AMYon POD 1 in cases with drain removal before POD 1 was significantly lower than in delayed PF cases. Although further studies are required to determine the most appropriate timing of drain removal, it is thought that intra-abdominal drains should be removed within seven days of PD in cases without signs of PF. On the other hand, delayed PF should be considered in cases of soft pancreas texture and/or high D-AMY on POD 1, even if D-AMY levels are low on POD 3 or decreasing on POD 5.
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Affiliation(s)
- Takashi Maeda
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Hiroto Kayashima
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Daisuke Imai
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Kazuki Takeishi
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Noboru Harada
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Eiji Tsujita
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Shinichi Tsutsui
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Hiroyuki Matsuda
- Department of Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
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Edwards SJ, Crawford F, van Velthoven MH, Berardi A, Osei-Assibey G, Bacelar M, Salih F, Wakefield V. The use of fibrin sealant during non-emergency surgery: a systematic review of evidence of benefits and harms. Health Technol Assess 2018; 20:1-224. [PMID: 28051764 DOI: 10.3310/hta20940] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Fibrin sealants are used in different types of surgery to prevent the accumulation of post-operative fluid (seroma) or blood (haematoma) or to arrest haemorrhage (bleeding). However, there is uncertainty around the benefits and harms of fibrin sealant use. OBJECTIVES To systematically review the evidence on the benefits and harms of fibrin sealants in non-emergency surgery in adults. DATA SOURCES Electronic databases [MEDLINE, EMBASE and The Cochrane Library (including the Cochrane Database of Systematic Reviews, the Database of Abstracts of Reviews of Effects, the Health Technology Assessment database and the Cochrane Central Register of Controlled Trials)] were searched from inception to May 2015. The websites of regulatory bodies (the Medicines and Healthcare products Regulatory Agency, the European Medicines Agency and the Food and Drug Administration) were also searched to identify evidence of harms. REVIEW METHODS This review included randomised controlled trials (RCTs) and observational studies using any type of fibrin sealant compared with standard care in non-emergency surgery in adults. The primary outcome was risk of developing seroma and haematoma. Only RCTs were used to inform clinical effectiveness and both RCTs and observational studies were used for the assessment of harms related to the use of fibrin sealant. Two reviewers independently screened all titles and abstracts to identify potentially relevant studies. Data extraction was undertaken by one reviewer and validated by a second. The quality of included studies was assessed independently by two reviewers using the Cochrane Collaboration risk-of-bias tool for RCTs and the Centre for Reviews and Dissemination guidance for adverse events for observational studies. A fixed-effects model was used for meta-analysis. RESULTS We included 186 RCTs and eight observational studies across 14 surgical specialties and five reports from the regulatory bodies. Most RCTs were judged to be at an unclear risk of bias. Adverse events were inappropriately reported in observational studies. Meta-analysis across non-emergency surgical specialties did not show a statistically significant difference in the risk of seroma for fibrin sealants versus standard care in 32 RCTs analysed [n = 3472, odds ratio (OR) 0.84, 95% confidence interval (CI) 0.68 to 1.04; p = 0.13; I2 = 12.7%], but a statistically significant benefit was found on haematoma development in 24 RCTs (n = 2403, OR 0.62, 95% CI 0.44 to 0.86; p = 0.01; I2 = 0%). Adverse events related to fibrin sealant use were reported in 10 RCTs and eight observational studies across surgical specialties, and 22 RCTs explicitly stated that there were no adverse events. One RCT reported a single death but no other study reported mortality or any serious adverse events. Five regulatory body reports noted death from air emboli associated with fibrin sprays. LIMITATIONS It was not possible to provide a detailed evaluation of individual RCTs in their specific contexts because of the limited resources that were available for this research. In addition, the number of RCTs that were identified made it impractical to conduct independent data extraction by two reviewers in the time available. CONCLUSIONS The effectiveness of fibrin sealants does not appear to vary according to surgical procedures with regard to reducing the risk of seroma or haematoma. Surgeons should note the potential risk of gas embolism if spray application of fibrin sealants is used and not to exceed the recommended pressure and spraying distance. Future research should be carried out in surgery specialties for which only limited data were found, including neurological, gynaecological, oral and maxillofacial, urology, colorectal and orthopaedics surgery (for any outcome); breast surgery and upper gastrointestinal (development of haematoma); and cardiothoracic heart or lung surgery (reoperation rates). In addition, studies need to use adequate sample sizes, to blind participants and outcome assessors, and to follow reporting guidelines. STUDY REGISTRATION This study is registered as PROSPERO CRD42015020710. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Kim SR, Yi HJ, Lee YN, Park JY, Hoffman RM, Okano T, Shim IK, Kim SC. Engineered mesenchymal stem-cell-sheets patches prevents postoperative pancreatic leakage in a rat model. Sci Rep 2018; 8:360. [PMID: 29321630 PMCID: PMC5762914 DOI: 10.1038/s41598-017-18490-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/12/2017] [Indexed: 12/22/2022] Open
Abstract
Post-operative pancreatic fistula (POPF) following pancreatic resection is a life-threatening surgical complication. Cell sheets were prepared and harvested using temperature-responsive culture dishes and transplanted as patches to seal POPF. Two different mesenchymal stem cell (MSC) sheets were compared in terms of the preventative ability for pancreatic leakage in a rat model. Both rat adipose-derived stem cell (rADSC) and bone marrow-derived stem cell (rBMSC) sheets were transplanted. Those rADSC and rBMSC sheets are created without enzymes and thus maintained their cell-cell junctions and adhesion proteins with intact fibronectin on the basal side, as well as characteristics of MSCs. The rats with post-pancreatectomy rADSC- or rBMSC-sheet patches had significantly decreased abdominal fluid leakage compared with the control group, demonstrated by MR image analysis and measurement of the volume of abdominal fluid. Amylase level was significantly lower in the rats with rADSC-sheet and rBMSC-sheet patches compared with the control groups. The rADSC sheet patches had increased adhesive and immune-cytokine profiles (ICAM-1, L-selectin, TIMP-1), and the rBMSC sheets had reduced immune reactions compared to the control. This is first project looking at the feasibility of tissue engineering therapy using MSC-sheets as tissue patches preventing leakage of abdominal fluid caused by POPF.
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Affiliation(s)
- Seong-Ryong Kim
- Department of Surgery, Division of HBP and Liver Transplantation, Korea University Anam Hospital, Seoul, Korea
| | - Hye-Jin Yi
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yu Na Lee
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Yoon Park
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Chemistry, Wesleyan University, Connecticut, United States
| | - Robert M Hoffman
- Department of Surgery, University of California, San Diego, CA, USA
- AntiCancer Inc., San Diego, CA, USA
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo, Japan
| | - In Kyong Shim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Song Cheol Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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van Rijssen LB, Koerkamp BG, Zwart MJ, Bonsing BA, Bosscha K, van Dam RM, van Eijck CH, Gerhards MF, van der Harst E, de Hingh IH, de Jong KP, Kazemier G, Klaase J, van Laarhoven CJ, Molenaar IQ, Patijn GA, Rupert CG, van Santvoort HC, Scheepers JJ, van der Schelling GP, Busch OR, Besselink MG, Bruno MJ, van Tienhoven GJ, Norduyn A, Berry DP, Tingstedt B, Tseng JF, Wolfgang CL. Nationwide prospective audit of pancreatic surgery: design, accuracy, and outcomes of the Dutch Pancreatic Cancer Audit. HPB (Oxford) 2017; 19:919-926. [PMID: 28754367 DOI: 10.1016/j.hpb.2017.06.010] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/19/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Auditing is an important tool to identify practice variation and 'best practices'. The Dutch Pancreatic Cancer Audit is mandatory in all 18 Dutch centers for pancreatic surgery. METHODS Performance indicators and case-mix factors were identified by a PubMed search for randomized controlled trials (RCT's) and large series in pancreatic surgery. In addition, data dictionaries of two national audits, three institutional databases, and the Dutch national cancer registry were evaluated. Morbidity, mortality, and length of stay were analyzed of all pancreatic resections registered during the first two audit years. Case ascertainment was cross-checked with the Dutch healthcare inspectorate and key-variables validated in all centers. RESULTS Sixteen RCT's and three large series were found. Sixteen indicators and 20 case-mix factors were included in the audit. During 2014-2015, 1785 pancreatic resections were registered including 1345 pancreatoduodenectomies. Overall in-hospital mortality was 3.6%. Following pancreatoduodenectomy, mortality was 4.1%, Clavien-Dindo grade ≥ III morbidity was 29.9%, median (IQR) length of stay 12 (9-18) days, and readmission rate 16.0%. In total 97.2% of >40,000 variables validated were consistent with the medical charts. CONCLUSIONS The Dutch Pancreatic Cancer Audit, with high quality data, reports good outcomes of pancreatic surgery on a national level.
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Affiliation(s)
- L Bengt van Rijssen
- Department of Surgery, Academic Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Bas G Koerkamp
- Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Maurice J Zwart
- Department of Surgery, Academic Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Bert A Bonsing
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Koop Bosscha
- Department of Surgery, Jeroen Bosch Hospital, 's Hertogenbosch, The Netherlands
| | - Ronald M van Dam
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Casper H van Eijck
- Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Michael F Gerhards
- Department of Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | | | - Ignace H de Hingh
- Department of Surgery, Catharina Hospital, Eindhoven, The Netherlands
| | - Koert P de Jong
- Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands
| | - Geert Kazemier
- Department of Surgery, VU University Medical Center, Amsterdam, The Netherlands
| | - Joost Klaase
- Department of Surgery, Medisch Spectrum Twente, Enschede, The Netherlands
| | | | - I Quintus Molenaar
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Gijs A Patijn
- Department of Surgery, Isala Clinics, Zwolle, The Netherlands
| | - Coen G Rupert
- Department of Surgery, Tjongerschans Hospital, Heerenveen, The Netherlands
| | | | - Joris J Scheepers
- Department of Surgery, Reinier de Graaf Gasthuis, Delft, The Netherlands
| | | | - Olivier R Busch
- Department of Surgery, Academic Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Marc G Besselink
- Department of Surgery, Academic Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands.
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Shrikhande SV, Sivasanker M, Vollmer CM, Friess H, Besselink MG, Fingerhut A, Yeo CJ, Fernandez-delCastillo C, Dervenis C, Halloran C, Gouma DJ, Radenkovic D, Asbun HJ, Neoptolemos JP, Izbicki JR, Lillemoe KD, Conlon KC, Fernandez-Cruz L, Montorsi M, Bockhorn M, Adham M, Charnley R, Carter R, Hackert T, Hartwig W, Miao Y, Sarr M, Bassi C, Büchler MW. Pancreatic anastomosis after pancreatoduodenectomy: A position statement by the International Study Group of Pancreatic Surgery (ISGPS). Surgery 2017; 161:1221-1234. [PMID: 28027816 DOI: 10.1016/j.surg.2016.11.021] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/02/2016] [Accepted: 11/13/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND Clinically relevant postoperative pancreatic fistula (grades B and C of the ISGPS definition) remains the most troublesome complication after pancreatoduodenectomy. The approach to management of the pancreatic remnant via some form of pancreatico-enteric anastomosis determines the incidence and severity of clinically relevant postoperative pancreatic fistula. Despite numerous trials comparing diverse pancreatico-enteric anastomosis techniques and other adjunctive strategies (pancreatic duct stenting, somatostatin analogues, etc), currently, there is no clear consensus regarding the ideal method of pancreatico-enteric anastomosis. METHODS An international panel of pancreatic surgeons working in well-known, high-volume centers reviewed the best contemporary literature concerning pancreatico-enteric anastomosis and worked to develop a position statement on pancreatic anastomosis after pancreatoduodenectomy. RESULTS There is inherent risk assumed by creating a pancreatico-enteric anastomosis based on factors related to the gland (eg, parenchymal texture, disease pathology). None of the technical variations of pancreaticojejunal or pancreaticogastric anastomosis, such as duct-mucosa, invagination method, and binding technique, have been found to be consistently superior to another. Randomized trials and meta-analyses comparing pancreaticogastrostomy versus pancreaticojejunostomy yield conflicting results and are inherently prone to bias due to marked heterogeneity in the studies. The benefit of stenting the pancreatico-enteric anastomosis to decrease clinically relevant postoperative pancreatic fistula is not supported by high-level evidence. While controversial, somatostatin analogues appear to decrease perioperative complications but not mortality, although consistent data across the more than 20 studies addressing this topic are lacking. The Fistula Risk Score is useful for predicting postoperative pancreatic fistula as well as for comparing outcomes of pancreatico-enteric anastomosis across studies. CONCLUSION Currently, no specific technique can eliminate development of clinically relevant postoperative pancreatic fistula. While consistent practice of any standardized technique may decrease the rate of clinically relevant postoperative pancreatic fistula, experienced surgeons can have lower postoperative pancreatic fistula rates performing a variety of techniques depending on the clinical situation. There is no clear evidence on the benefit of internal or external stenting after pancreatico-enteric anastomosis. The use of somatostatin analogues may be important in decreasing morbidity after pancreatoduodenectomy, but it remains controversial. Future studies should focus on novel approaches to decrease the rate of clinically relevant postoperative pancreatic fistula with appropriate risk adjustment.
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Affiliation(s)
- Shailesh V Shrikhande
- Department of Gastrointestinal and HPB Surgical Oncology, Tata Memorial Hospital, Mumbai, India.
| | - Masillamany Sivasanker
- Department of Gastrointestinal and HPB Surgical Oncology, Tata Memorial Hospital, Mumbai, India
| | | | - Helmut Friess
- Department of Surgery, Klinikum Rechts der Isar, Technische Universitat Munchen, Munich, Germany
| | - Marc G Besselink
- Department of Surgery, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Abe Fingerhut
- Department of Digestive Surgery, University Hospital of Graz, Austria
| | - Charles J Yeo
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, PA
| | | | | | - Christoper Halloran
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Dirk J Gouma
- Department of Surgery, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Dejan Radenkovic
- First Surgical Clinic, Clinical Center of Serbia, University of Belgrade, Belgrade, Serbia
| | - Horacio J Asbun
- Department of General Surgery, Mayo Clinic, Jacksonville, FL
| | - John P Neoptolemos
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Jakob R Izbicki
- Department of General, Visceral and Thoracic Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Keith D Lillemoe
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Kevin C Conlon
- Professorial Surgical Unit, University of Dublin, Trinity College, Dublin, Ireland
| | - Laureano Fernandez-Cruz
- Department of Surgery, Clinic Hospital of Barcelona, University of Barcelona, Barcelona, Spain
| | - Marco Montorsi
- Department of Surgery, Humanitas University, Milan, Italy
| | - Max Bockhorn
- Department of General, Visceral and Thoracic Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Mustapha Adham
- Department of Digestive & HPB Surgery, Hopital Edouard Herriot, HCL, UCBL1, Lyon, France
| | - Richard Charnley
- Department of HPB & Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom
| | - Ross Carter
- Glasgow Royal Infirmary, Glasgow, United Kingdom
| | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Werner Hartwig
- Department of Surgery, Klinikum Großhadern, University of Munich, Munich, Germany
| | - Yi Miao
- Pancreas Center, Nanjing Medical University, Nanjing, P.R. China
| | - Michael Sarr
- Department of Gastroenterologic and General Surgery, Mayo Clinic, Rochester, MN
| | - Claudio Bassi
- Department of Surgery and Oncology, Pancreas Institute, University Hospital Trust of Verona, Verona, Italy
| | - Markus W Büchler
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
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Pendola F, Gadde R, Ripat C, Sharma R, Picado O, Lobo L, Sleeman D, Livingstone AS, Merchant N, Yakoub D. Distal pancreatectomy for benign and low grade malignant tumors: Short-term postoperative outcomes of spleen preservation-A systematic review and update meta-analysis. J Surg Oncol 2017; 115:137-143. [PMID: 28133818 DOI: 10.1002/jso.24507] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 10/21/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND The value of spleen preservation with distal pancreatectomy (DP) for benign and low grade malignant tumors remains unclear. The aim of this study was to evaluate the short-term postoperative clinical outcomes in patients undergoing DP with splenectomy (DPS) or spleen preservation (SPDP). METHODS Online database search was performed (2000 to present); key bibliographies were reviewed. Studies comparing patients undergoing DP with either DPS or SPDP, and assessing postoperative complications were included. RESULTS Meta-analysis of included data showed SPDP patients had significantly less operative blood loss, shorter duration of hospitalization, lower incidence of fluid collection and abscess, lower incidence of postoperative splenic and portal vein thrombosis, and lower incidence of new onset postoperative diabetes. For the whole group, there was no difference in incidence of postoperative pancreatic fistula (POPF) (RR = 0.95; 95%CI 0.65-1.40, P = 0.80), however, subgroup analysis of studies using ISGPF criteria showed that DPS patients had increased rates of Grade B/C POPF (RR = 1.35; 95%CI 1.08-1.70, P = 0.01). CONCLUSIONS SPDP for benign and low grade malignant tumors is associated with shorter hospital stay and decreased morbidity compared to DPS. J. Surg. Oncol. 2017;115:137-143. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Fiorella Pendola
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida.,Sylvester Comprehensive Cancer Center, University of Miami - Miller School of Medicine, Miami, Florida
| | - Rahul Gadde
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida
| | - Caroline Ripat
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida
| | - Rishika Sharma
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida
| | - Omar Picado
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida
| | - Laila Lobo
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida
| | - Danny Sleeman
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida
| | - Alan S Livingstone
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida.,Sylvester Comprehensive Cancer Center, University of Miami - Miller School of Medicine, Miami, Florida
| | - Nipun Merchant
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida.,Sylvester Comprehensive Cancer Center, University of Miami - Miller School of Medicine, Miami, Florida
| | - Danny Yakoub
- Division of Surgical Oncology, Department of Surgery, University of Miami - Miller School of Medicine, Miami, Florida.,Sylvester Comprehensive Cancer Center, University of Miami - Miller School of Medicine, Miami, Florida
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Deng LH, Xiong JJ, Xia Q. Isolated Roux-en-Y pancreaticojejunostomy versus conventional pancreaticojejunostomy after pancreaticoduodenectomy: a systematic review and meta-analysis. J Evid Based Med 2017; 10:37-45. [PMID: 27314553 DOI: 10.1111/jebm.12202] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 06/07/2016] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate the advantage between isolated Roux loop pancreaticojejunostomy (IPJ) and conventional pancreaticojejunostomy (CPJ) after pancreaticoduodenectomy (PD). METHODS Comparative studies on this topic published between January 1976 and April 2015 in PubMed, EMbase, EBSCO, Science Citation Index Expanded and Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library were searched, and selected based on specific inclusion and exclusion criteria. Perioperative outcomes such as postoperative pancreatic fistula, delayed gastric emptying, operation time, intraoperative blood loss, intraoperative blood transfusion, postoperative bleeding, intra-abdominal abscess, bile leakage, wound infection, morbidity and mortality were compared. Pooled odds ratios (OR) or weighted mean differences (WMD) with 95% confidence interval (CI) were calculated using either fixed- or random-effects model. RESULTS Six studies were included with two randomized controlled and four nonrandomized trials. A total of 712 patients (359 patients from the IPJ group and 353 patients from the CPJ group) were analyzed. The pooled results revealed that IPJ had longer operation time (WMD = 36.55, 95% CI 6.98 to 66.11, P = 0.02). However, there were no significant differences between both groups in postoperative pancreatic fistula, intraoperative blood loss, blood transfusion, delayed gastric emptying, postoperative bleeding, intra-abdominal abscess, bile leakage, wound infection, morbidity, mortality and postoperative hospital stay. CONCLUSIONS PD with IPJ was comparable to CPJ in intraoperative outcomes and postoperative complications. However, further randomized controlled trials should be undertaken to ascertain these findings.
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Affiliation(s)
- Li Hui Deng
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jun Jie Xiong
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qing Xia
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Pancreatic stump closure after pancreatoduodenectomy in elderly patients: a retrospective clinical study. Aging Clin Exp Res 2017; 29:35-40. [PMID: 27837458 PMCID: PMC5334406 DOI: 10.1007/s40520-016-0657-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 10/12/2016] [Indexed: 12/29/2022]
Abstract
BACKGROUND Pancreatic fistula (PF) after pancreatoduodenectomy (PD) represents the major source of morbidity. Derivative procedures are preferred by pancreatic surgeons, but the optimal management of remnant pancreatic stump remains controversial. AIMS The purpose of this retrospective study is to evaluate the efficacy and safety of pancreatic stump closure in selected elderly patients (>65 years). METHODS Clinical data of 44 PD undergone mechanical closure of the pancreatic stump performed between 2001 and 2014 in two department of general and oncologic surgery were retrospectively collected. Considering the age, patients were divided into two groups: 21 patients of less than 65 years (Group A) and 23 patients of more than 65 years (Group B). RESULTS A soft pancreatic parenchyma with a not-dilated duct (diameter <3 mm) was reported in all the 44 patients. A grade-A PF, which did not required further treatments, developed in 20 cases (45.4%; 13 in group A and 7 in group B; p < 0.05), grade-B in 5 patients (11.4%; 3 in group A and 2 in group B; statistically not significant) and a grade-C PF was observed only in one patient (2.2%; 1 in group A and 0 in group B). DISCUSSION In selected "high risk" elderly patients (>65 years) with soft pancreatic texture, the closure of the pancreatic stump can be a useful tool in the surgical armamentarium with the aim to reduce the incidence of age-related complications. CONCLUSIONS Prospective randomized controlled trial to better evaluate PF risk factors is needed.
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Bovine Serum Albumin-Glutaraldehyde Sealed Fish-Mouth Closure of the Pancreatic Remnant during Distal Pancreatectomy. HPB SURGERY : A WORLD JOURNAL OF HEPATIC, PANCREATIC AND BILIARY SURGERY 2017; 2017:9747421. [PMID: 28194043 PMCID: PMC5282416 DOI: 10.1155/2017/9747421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 12/28/2016] [Indexed: 12/11/2022]
Abstract
Introduction. Postoperative pancreatic fistula formation remains the major complication after distal pancreatectomy. At our institution, we have recently developed a novel bovine serum albumin-glutaraldehyde sealed hand sutured fish-mouth closure technique of the pancreatic remnant during distal pancreatectomy. The aim of this study was to analyze the impact of this approach with regard to technical feasibility and overall postoperative outcome. Patients and Methods. 32 patients who underwent a bovine serum albumin-glutaraldehyde sealed hand sutured fish-mouth closure of the pancreatic remnant during distal pancreatectomy between 2012 and 2014 at our institution were analyzed for clinically relevant postoperative pancreatic fistula formation (Grades B and C according to ISGPF definition) and overall postoperative morbidity. Results. Three out of 32 patients (9.4%) developed Grade B pancreatic fistula, which could be treated conservatively. No Grade C pancreatic fistulas were observed. Postpancreatectomy hemorrhage occurred in 1 patient (3.1%). Overall postoperative complications > Clavien II were observed in 5 patients (15.6%). There was no postoperative mortality. Conclusion. The performance of a bovine serum albumin-glutaraldehyde sealed hand sutured fish-mouth closure of the pancreatic remnant was shown to be technically feasible and may lead to a significant decrease of postoperative pancreatic fistula formation after distal pancreatectomy.
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Papalampros A, Niehaus K, Moris D, Fard-Aghaie M, Stavrou G, Margonis AG, Angelou A, Oldhafer K. A safe and feasible “clock-face” duct-to-mucosa pancreaticojejunostomy with a very low incidence of anastomotic failure: A single center experience of 248 patients. J Visc Surg 2016; 153:425-431. [DOI: 10.1016/j.jviscsurg.2016.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Ammori JB, Choong K, Hardacre JM. Surgical Therapy for Pancreatic and Periampullary Cancer. Surg Clin North Am 2016; 96:1271-1286. [PMID: 27865277 DOI: 10.1016/j.suc.2016.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Surgery is the key component of treatment for pancreatic and periampullary cancers. Pancreatectomy is complex, and there are numerous perioperative and intraoperative factors that are important for achieving optimal outcomes. This article focuses specifically on key aspects of the surgical management of periampullary and pancreatic cancers.
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Affiliation(s)
- John B Ammori
- Division of Surgical Oncology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Kevin Choong
- Division of Surgical Oncology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - Jeffrey M Hardacre
- Division of Surgical Oncology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
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Hong S, Pirovich D, Kilcoyne A, Huang CH, Lee H, Weissleder R. Supramolecular Metallo-Bioadhesive for Minimally Invasive Use. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:8675-8680. [PMID: 27515068 PMCID: PMC5144581 DOI: 10.1002/adma.201602606] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/12/2016] [Indexed: 05/23/2023]
Abstract
A novel metallo-bioadhesive to be used as tissue sealant in minimally invasive procedures is reported. Metal complexation can be used to render gelatin derivatives adhesive, which occurs in minutes, is efficient, and fully biodegradable within weeks.
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Affiliation(s)
- Seonki Hong
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., CPZN 5206, Boston, MA, 02114, USA
| | - David Pirovich
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., CPZN 5206, Boston, MA, 02114, USA
| | - Aoife Kilcoyne
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., CPZN 5206, Boston, MA, 02114, USA
- Division of Interventional Radiology, Massachusetts General Hospital, 55 Fruit St., Boston, MA, 02114, USA
| | - Chen-Han Huang
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., CPZN 5206, Boston, MA, 02114, USA
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., CPZN 5206, Boston, MA, 02114, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., CPZN 5206, Boston, MA, 02114, USA.
- Division of Interventional Radiology, Massachusetts General Hospital, 55 Fruit St., Boston, MA, 02114, USA.
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave., Boston, MA, 02115, USA.
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Transpancreatic Mattress Suture with Vicryl Mesh Around the Stump During Distal Pancreatectomy: A Novel Technique for Preventing Postoperative Pancreatic Fistula. J Am Coll Surg 2016; 223:e1-5. [DOI: 10.1016/j.jamcollsurg.2016.03.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/18/2016] [Accepted: 03/21/2016] [Indexed: 12/12/2022]
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Abstract
Fibrin sealant has been used with increasing frequency in a variety of surgical field for its unique hemostatic and adhesive abilities. Fibrin sealant mimics the last step of the coagulation cascade and takes place independently of the patient's coagulation status. With rapid advances in minimally invasive surgery, the potential uses for this type of biologic and synthetic material are expanding exponentially. This article reviews the data associated with the application of fibrin sealant in various surgical procedures. From reinforcing gastrointestinal anastomosis to repair perforated duodenal ulcers to mesh fixation in laparoscopic inguinal hernia repair, fibrin sealant is gaining increasing acceptance among surgeons. The applications of fibrin sealant are expanding, and new preparations of fibrin sealant are currently being evaluated.
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Affiliation(s)
- Meng-G Martin Lee
- Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
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Kuroshima N, Tanaka T, Kuroki T, Kitasato A, Adachi T, Ono S, Matsushima H, Hirayama T, Soyama A, Hidaka M, Takatsuki M, Eguchi S. Triple-drug therapy to prevent pancreatic fistula after pancreatectomy in a rat model. Pancreatology 2016; 16:917-21. [PMID: 27396917 DOI: 10.1016/j.pan.2016.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/08/2016] [Accepted: 06/21/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pancreatic fistula (PF) is one of post-operative complications in pancreatic surgery, but there is no consensus about the optimal treatment for PF. Our group has established a rat model of PF, and we conducted the present investigation to determine the efficacy of the triple-drug therapy (somatostatin analogue, gabexate mesilate, and imipenem/cilastatin) against PF using our rat model. METHODS In the PF rat model, the triple-drug therapy was administered to the treated (T) group (n = 4), and we compared the results with those of a control (C) group (n = 4). The rats were sacrificed on postoperative day 3 (POD 3) and the levels of amylase and lipase in serum and ascites were measured. The intra-abdominal adhesion was scored. Each pancreas was evaluated pathologically, and inflammation was scored. RESULTS The ascitic amylase levels on POD 3 were 1982 (1738-2249) IU/L in the C group and significantly lower at 136 (101-198) IU/L in the T group (p = 0.02). The ascitic lipase levels on POD 3 were 406 (265-478) U/L in the C group and significantly lower at 13 (7-17) U/L in the T group (p = 0.02). The intra-abdominal adhesion score on POD 3 was 2 (1-2) in the C group and significantly lower at 0 (0-1) in the T group (p = 0.02). The histological evaluation showed that the average of pancreatic inflammatory score was 8.5 (8-9) in the C group and significantly milder at 5 (5-7) in the T group (p = 0.01). CONCLUSION Our findings suggest that the triple-drug therapy could be useful as a treatment for PF in clinical settings.
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Affiliation(s)
- Naoki Kuroshima
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takayuki Tanaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tamotsu Kuroki
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Amane Kitasato
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomohiko Adachi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shinichiro Ono
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hajime Matsushima
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takanori Hirayama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Akihiko Soyama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Masaaki Hidaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mitsuhisa Takatsuki
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
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Pancreaticojejunostomy is comparable to pancreaticogastrostomy after pancreaticoduodenectomy: an updated meta-analysis of randomized controlled trials. Langenbecks Arch Surg 2016; 401:427-37. [PMID: 27102322 DOI: 10.1007/s00423-016-1418-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 03/30/2016] [Indexed: 12/12/2022]
Abstract
PURPOSE To perform an up-to-date meta-analysis of randomized controlled trials (RCTs) comparing pancreaticojejunostomy (PJ) and pancreaticogastrostomy (PG) in order to determine the safer anastomotic technique. Compared to existing meta-analysis, new RCTs were evaluated and subgroup analyses of different anastomotic techniques were carried out. METHODS We conducted a bibliographic research using the National Library of Medicine's PubMed database from January 1990 to July 2015 of RCTs. Only RCTs, in English, that compared PG versus all types of PJ were selected. Data were independently extracted by two authors. We performed a quantitative systematic review following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. A random-effect model was applied. Statistical heterogeneity was assessed using the I (2) and χ (2) tests. Primary outcomes were rate of overall and clinically significant pancreatic fistula (POPF). RESULTS Ten RCTs were identified including 1629 patients, 826 undergoing PG and 803 undergoing PJ. RCTs showed significant heterogeneity regarding definitions of POPF, perioperative management, and characteristics of pancreatic gland. No significant differences were found in the rate of overall and clinically significant POPF, morbidity, mortality, reoperation, and intra-abdominal sepsis when PG was compared with all types PJ or when subgroup analysis (double-layer PG with or without anterior gastrotomy versus duct to mucosa PJ and single-layer PG versus single-layer end-to-end/end-to-side PJ) were analyzed. CONCLUSIONS PG is not superior to PJ in the prevention of POPF. Current RCTs have major methodological limitations with significant heterogeneity in regard to surgical techniques, definition of POPF/complications, and perioperative management.
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Horvath P, Beckert S, Nadalin S, Königsrainer A, Königsrainer I. Pancreas-preserving surgical management of grade-C pancreatic fistulas after pancreatic head resection by external wirsungostomy. Langenbecks Arch Surg 2016; 401:457-62. [DOI: 10.1007/s00423-016-1423-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/01/2016] [Indexed: 12/30/2022]
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Watanobe I, Ito Y, Akimoto E, Sekine Y, Haruyama Y, Amemiya K, Miyano S, Kosaka T, Machida M, Kitabatake T, Kojima K. Postoperative portal vein thrombosis and gastric hemorrhage associated with late-onset hemorrhage from the common hepatic artery after pancreaticoduodenectomy. KOREAN JOURNAL OF HEPATO-BILIARY-PANCREATIC SURGERY 2016; 20:44-7. [PMID: 26925150 PMCID: PMC4767262 DOI: 10.14701/kjhbps.2016.20.1.44] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 10/02/2015] [Accepted: 10/03/2015] [Indexed: 11/21/2022]
Abstract
Portal vein thrombosis (PVT) is a rare but serious postoperative complication of pancreaticoduodenectomy (PD). We reported a case of late-onset postoperative PVT with hemorrhage from the common hepatic artery (CHA) in a 73-year-old man who underwent pylorus-preserving pancreaticoduodenectomy (PPPD) for duodenum papilla cancer, followed by reconstruction using the modified Child's technique. The pancreaticojejunostomy was achieved by end-to-side, 2-layer invagination anastomosis without pancreatic duct stenting. Drain removal and hospital discharge were scheduled on postoperative day (POD) 18, but blood-stained fluid in the drain and sudden hematemesis were noted. Emergency surgery was performed because PVT and imaging findings were suggestive of necrosis of the lifted jejunum. Although no jejunal necrosis was identified during surgery, bleeding from the side of the CHA was detected and the bleeding point was suture-closed to achieve hemostasis. We suspected late-onset postoperative arterial hemorrhage and subsequent hematoma formation, which caused portal vein compression and PVT formation. We chose a conservative treatment strategy for PVT, taking into account the operation time, intraoperative vital signs and blood flow in the portal vein. Despite the complicated postoperative course, he was discharged home in a fully ambulatory state on POD 167.
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Affiliation(s)
- Ikuo Watanobe
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Yuzuru Ito
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Eigo Akimoto
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Yuuki Sekine
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Yurie Haruyama
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Kota Amemiya
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Shozo Miyano
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Taijiro Kosaka
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Michio Machida
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Toshiaki Kitabatake
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Kuniaki Kojima
- Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan
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Cheng Y, Ye M, Xiong X, Peng S, Wu HM, Cheng N, Gong J. Fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. Cochrane Database Syst Rev 2016; 2:CD009621. [PMID: 26876721 DOI: 10.1002/14651858.cd009621.pub2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Postoperative pancreatic fistula is one of the most frequent and potentially life-threatening complications following pancreatic resections. Fibrin sealants are introduced to reduce postoperative pancreatic fistula by some surgeons. However, the use of fibrin sealants during pancreatic surgery is controversial. OBJECTIVES To assess the safety, effectiveness, and potential adverse effects of fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery. SEARCH METHODS We searched The Cochrane Library (2015, Issue 7), MEDLINE (1946 to 26 August 2015), EMBASE (1980 to 26 August 2015), Science Citation Index Expanded (1900 to 26 August 2015), and Chinese Biomedical Literature Database (CBM) (1978 to 26 August 2015). SELECTION CRITERIA We included all randomized controlled trials that compared fibrin sealant group (fibrin glue or fibrin sealant patch) versus control group (no fibrin sealant or placebo) in people undergoing pancreatic surgery. DATA COLLECTION AND ANALYSIS Two review authors independently identified the trials for inclusion, collected the data, and assessed the risk of bias. We performed the meta-analyses using Review Manager 5. We calculated the risk ratio (RR) for dichotomous outcomes (or a Peto odds ratio for very rare outcomes), and the mean difference (MD) for continuous outcomes with 95% confidence intervals (CI). MAIN RESULTS We included nine trials involving 1095 participants who were randomized to the fibrin sealant group (N = 550) and the control group (N = 545) after pancreatic surgery. All of the trials were at high risk of bias. There was no evidence of differences in overall postoperative pancreatic fistula (fibrin sealant 29.6%; control 31.0%; RR 0.93, 95% CI 0.71 to 1.21; P = 0.58; nine studies; low-quality evidence), postoperative mortality (3.1% versus 2.1%; Peto OR 1.29, 95% CI 0.59 to 2.82; P = 0.53; eight studies; very low-quality evidence), overall postoperative morbidity (29.6% versus 28.9%; RR 1.04, 95% CI 0.82 to 1.32; P = 0.77; five studies), reoperation rate (8.7% versus 10.7%; RR 0.80, 95% CI 0.53 to 1.21; P = 0.29; five studies), or length of hospital stay (12.9 days versus 13.1 days; MD -0.73 days, 95% CI -2.20 to 0.74; P = 0.331; six studies) between the groups. The proportion of postoperative pancreatic fistula that was clinically significant was not mentioned in most trials. On inclusion of trials that clearly distinguished clinically significant fistulas, there was inadequate evidence to establish the effect of fibrin sealants on clinically significant postoperative pancreatic fistula (9.4% versus 13.4%; RR 0.72, 95% CI 0.42 to 1.21; P = 0.21; three studies). Quality of life and cost effectiveness were not reported in any of the trials. AUTHORS' CONCLUSIONS Based on the current available evidence, fibrin sealants do not seem to prevent postoperative pancreatic fistula in people undergoing pancreatic surgery.
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Affiliation(s)
- Yao Cheng
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital, Chongqing Medical University, No. 74, Lin Jiang Road, Chongqing, Chongqing, China, 400010
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Lee Y, Xu C, Sebastin M, Lee A, Holwell N, Xu C, Miranda Nieves D, Mu L, Langer RS, Lin C, Karp JM. Bioinspired Nanoparticulate Medical Glues for Minimally Invasive Tissue Repair. Adv Healthc Mater 2015; 4:2587-96. [PMID: 26227833 DOI: 10.1002/adhm.201500419] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/24/2015] [Indexed: 01/12/2023]
Abstract
Delivery of tissue glues through small-bore needles or trocars is critical for sealing holes, affixing medical devices, or attaching tissues together during minimally invasive surgeries. Inspired by the granule-packaged glue delivery system of sandcastle worms, a nanoparticulate formulation of a viscous hydrophobic light-activated adhesive based on poly(glycerol sebacate)-acrylate is developed. Negatively charged alginate is used to stabilize the nanoparticulate surface to significantly reduce its viscosity and to maximize injectability through small-bore needles. The nanoparticulate glues can be concentrated to ≈30 w/v% dispersions in water that remain localized following injection. With the trigger of a positively charged polymer (e.g., protamine), the nanoparticulate glues can quickly assemble into a viscous glue that exhibits rheological, mechanical, and adhesive properties resembling the native poly(glycerol sebacate)-acrylate based glues. This platform should be useful to enable the delivery of viscous glues to augment or replace sutures and staples during minimally invasive procedures.
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Affiliation(s)
- Yuhan Lee
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Chenjie Xu
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Monisha Sebastin
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Albert Lee
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Nathan Holwell
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Calvin Xu
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - David Miranda Nieves
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Luye Mu
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Robert S. Langer
- Harvard-Massachusetts Institute of Technology; Division of HealthSciences and Technology; Institute for Medical Engineering & Science; Massachusetts Institute of Technology; David H. Koch Institute for Integrative Cancer Research; Massachusetts Institute of Technology; Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139 USA
| | - Charles Lin
- Wellman center for Photomedicine; Massachusetts General Hospital; Harvard Medical School; Boston MA 02140 USA
| | - Jeffrey M. Karp
- Department of Medicine; Center for Regenerative Therapeutics; Brigham and Women's Hospital; Harvard Medical School; Harvard Stem Cell Institute; Harvard-MIT Division of Health Science and Technology; 65 Landsdowne Street Cambridge MA 02139 USA
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