1,720,992 research outputs found
Identifying key outcome metrics in pancreatic surgery, and how to optimally achieve them
No full textBackground: Indicators of effectiveness and quality of care are of greatest importance in gauging the direct benefit of a new surgical technique, such as minimally-invasive pancreatic resections, when being compared with established approaches.Methods: Current expert opinion on minimally-invasive pancreatic resection (MIPR) was presented at the first MIPR state of the art conference during 12th world congress of the International HepatoPancreato-Biliary Association.Results: Studies exploring outcome of the minimally-invasive approach, alone or compared with open surgery, should consider all the necessary indicators of quality ensuring a high level of clinical care. Such studies should be implemented in a context that guarantees the correct indication for surgery, lower mortality rates, a low burden of post-operative morbidity through early recognition of adverse events and prevention of predictable complications, high standards of oncological "radicality", prompt recovery with access to adjuvant therapy as soon as possible, and reduction of health-care related costs.Discussion: Only by integrating MIPR with the outcome-improving effect of a dedicated pancreatic team will it be possible to assess more precisely the putative benefits of this minimally-invasive approach
Surgery for Distal Cholangiocarcinoma
No full textCholangiocarcinoma is a heterogeneous group of neoplasms, which has a rising worldwide incidence. Therefore, it is now a major cause of cancer mortality. Diagnosis, staging, treatment approaches and outcomes differ significantly based on the location of the tumor. Given the challenges of remaining up-to-date in a rapidly expanding field, the aim of this monograph is to provide a comprehensive, fully referenced presentation of the state-of-the-art medical and surgical aspects relevant to the management of cholangiocarcinoma divided by the site of origin (i.e. intrahepatic, hilar and distal). The division of the book into these sections reflects the biological and clinical differences between these tumor types and will permit the authors to address the diagnostic, interventional or treatment issues specific to each tumor type. By presenting all medical and surgical aspects of cholangiocarcinoma in a systematic manner, this monograph will be a ready-to-use instrument for those interested in cholangiocarcinoma, including practicing physicians, residents, fellows and specialists. A list of 66 world-renowned experts contributed to the book, offering the readers the unique opportunity to have a broad perspective on these diseases, practical indications on patient selection and treatment that can be easily applied to both Eastern and Western clinical settings
Postoperative Acute Pancreatitis Following Pancreaticoduodenectomy: A Determinant of Fistula Potentially Driven by the Intraoperative Fluid Management
No full textOBJECTIVE: The aim of the study is to characterize postoperative acute pancreatitis (POAP). SUMMARY BACKGROUND DATA: A standardized definition of POAP after pancreaticoduodenectomy (PD) has been recently proposed, but specific studies are lacking. METHODS: The patients were extracted from the prospective database of The Pancreas Institute of Verona. POAP was defined as an elevation of the serum pancreatic amylase levels above the upper limit of normal (52 U/L) on postoperative day (POD) 0 or 1. The endpoints included defining the incidence and predictors of POAP and investigating the association of POAP with postoperative pancreatic fistula (POPF). RESULTS: The study population consisted of 292 patients who underwent PD. The POAP and POPF rates were 55.8% and 22.3%, respectively. POAP was an independent predictor of POPF (OR 3.8), with a 92% sensitivity and 53.7% specificity (AUC 0.79). Preoperative exocrine insufficiency (OR 0.39), neoadjuvant therapy (OR 0.29) additional resection of the pancreatic stump margin (OR 0.25), soft pancreatic texture (OR 4.38), and Main Pancreatic Duct (MPD) diameter ≤3 mm (OR 2.86) were independent predictors of POAP. In high-risk patients, an intraoperative fluid administration of ≤3 ml/kg/h was associated with an increased incidence of POAP (24.6 vs. 0%, P = 0.04) and POPF (27.6 vs. 11.4%, P = 0.05). CONCLUSION: This study represents the first clinical application of the only available definition of POAP as a specific complication of pancreatic surgery. POAP is associated with an increased occurrence of POPF and overall morbidity and could potentially be avoided through a specific intraoperative fluid regimen in high-risk pancreas
Postoperative hyperamylasemia (POH) and acute pancreatitis after pancreatoduodenectomy (POAP): State of the art and systematic review
No full textPostoperative hyperamylasemia is a frequent finding after pancreatoduodenectomy, but its incidence and clinical implications have not yet been analyzed systematically. The aim of this review is to reappraise the concept of postoperative hyperamylasemia with postoperative acute pancreatitis, including its definition, interpretation, and correlation
Seasonal variations in pancreatic surgery outcome A retrospective time-trend analysis of 2748 Whipple procedures
Full text linkObserving cyclic patterns in surgical outcome is a common experience. We aimed to measure this phenomenon and to hypothesize possible causes using the experience of a high-volume pancreatic surgery department
Open pancreaticoduodenectomy: setting the benchmark of time to functional recovery
Full text linkPURPOSE: No accepted benchmarks for open pancreaticoduodenectomy (PD) exist. The study assessed the time to functional recovery after open PD and how this could be affected by the magnitude of midline incision (MI). MATERIALS AND METHODS: Prospective snapshot study during 1 year. Time to functional recovery (TtFR) was assessed for the entire cohort. Further analyses were conducted after excluding patients developing a Clavien-Dindo ≥ 2 morbidity and after stratifying for the relative length of MI. RESULTS: The overall median TtFR was 7 days (n = 249), 6 days for uncomplicated patients (n = 124). A short MI (SMI, < 60% of xipho-pubic distance, n = 62) was compared to a long MI (LMI, n = 62) in uncomplicated patients. The choice of a SMI was not affected by technical issues and provided a significantly shorter TtFR (5 vs 6 days, p = 0.002) especially for pain control (4 vs. 5 days, p = 0.048) and oral food intake (5 vs. 6 days, p = 0.001). CONCLUSION: Functional recovery after open PD with MI is achieved within 1 week from surgery in half of the patients. This should be the appropriate benchmark for comparison with minimally invasive PD. Moreover, PD with a SMI is feasible, safe, and associated with a faster recovery. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00423-021-02333-3
Characterization of postoperative acute pancreatitis (POAP) after distal pancreatectomy
No full textPostoperative acute pancreatitis has recently been reported as a specific complication after pancreatoduodenectomy. The aim of this study was to characterize postoperative acute pancreatitis after distal pancreatectomy
Pancreaticoduodenectomy for distal cholangiocarcinoma: surgical results, prognostic factors, and long-term follow-up
No full textPurpose Prognostic indicators for distal cholangiocarcinoma have not been widely confirmed because of its rarity. Despite the early appearance of symptoms, it has a very poor prognosis. The aim of this study was to identify prognostic factors in patients undergoing pancreaticoduodenectomy (PD) for distal bile duct cancer (DBDC) in a high-volume center for pancreatic disease. Methods From January 2000 to December 2013, 1490 PD were performed for periampullary disease. Data from all patients with histologically proven cholangiocarcinoma were reviewed. Preoperative data, post-operative complications, pathologic features, and survival were investigated. Results Among 50 histologically proven DBDC (3.3 %), 4 patients who underwent CBD resection were excluded. Thus, the study population consisted of 46 patients. Overall surgical morbidity rate was 67.4 %; mortality was nil. Major complications were pancreatic fistula (47.8 %), abdominal collections (34.8 %), post-pancreatectomy hemorrhage (21.7 %), and delayed gastric emptying (10.9 %). The majority of resections were R0 (73.9 %). The presence of metastatic lymph nodes (N1) was identified in 76.1 % of cases. Among N1 cases, the most frequently involved lymph nodes were pancreaticoduodenal nodes (50 %), hepatoduodenal ligament nodes (21.7 %), superior mesenteric artery nodes (8.7 %), and anterior hepatic artery nodes (4.3 %). Overall, survival rates were 88.8, 40, and 18 % at 1, 3, and 5 years, respectively. Median survival was 31 months. By univariate analysis, only tumor grading and nodal metastasis were predictors of poor prognosis (p<0.05). These findings were not confirmed in multivariate analysis. Conclusions This study shows that DBDC is a rare entity even if large surgical series are reviewed. Tumor differentiation and nodal status have been confirmed as important prognostic factors. Pancreaticoduodenectomy remains the procedure of choice in order to obtain free surgical margins and in order to harvest the correct number of lymph nodes for a correct staging
Biliary fistula after pancreaticoduodenectomy: data from 1618 consecutive pancreaticoduodenectomies
No full textBackground: Biliary fistula (BF) occurs in 3-8% of patients following pancreaticoduodenectomy (PD). It usually pursues a benign course, but rarely may represent a life-threatening event.Study design: Data from 1618 PDs were collected prospectively. BF was defined as the presence of bile stained fluid from drains by post-operative day 3 and confirmed by sinogram in the majority of cases. Three classifications were validated.Results: BF occurred in 58 (3.6%) patients. In 22 cases was associated with pancreatic fistula (POPF). POPF, PPH, operative time and a smaller common bile duct (CBD) were significantly associated with BF. Only CBD diameter (HR 0.55, CI 95% 0.44-0.7, p < 0.01) was an independent predictor of BF. Patients with smaller CBDs developing concomitant BF and POPF carried the highest mortality rate (34.8%, n = 8/22). All the existing classifications resulted in discrete categories of BFs when considering hospital stay and total cost as dependent variables.Conclusions: Biliary fistula is rare, but it can be life threatening when associated with POPF. As the sole independent risk factor is the CBD diameter, surgical technique is crucial. Regardless of the existing classification systems, further studies must assess the additive burden of BF when a concomitant POPF is present
The management of intraductal papillary mucinous neoplasms of the pancreas
No full textIntraductal papillary mucinous neoplasms (IPMN) of the pancreas are one of the most common preneoplastic entities among pancreatic cystic neoplasms (PCN). Their incidence is increasing due to an extensive use of cross-sectional imaging, but management still remains controversial. Among IPMNs, the main duct (MD-IPMN) and mixed (MT-IPMN) types harbor a high risk of malignant degeneration requiring resection in most of cases. The branch duct type (BD-IPMN), on the other side, can be safely surveilled as surgical resection is limited to selected cases deemed at high risk of malignant progression according to specific clinical and radiological features. An accurate diagnosis and a correct assessment of malignant potential are often hard to achieve, and clinical management still relies on the experience of the gastroenterologist/surgeon that is called to choose between a major pancreatic resection burdened by high morbidity and mortality rates and a life-long surveillance. The purpose of this report is to summarize the available evidence supporting the current practice for the management of IPMN and to offer a useful practical guide from first observation to postoperative follow-up
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