Browsing by Author "Kandel, Bishnu"
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Publication Day One Drain Amylase as a Predictor of Postoperative Pancreatic Fistula Following Pancreaticoduodenectomy(Nepal Health Research Council, 2022) Pradhan, Sumita; Kandel, Bishnu; Bhandari, Ramesh Singh; Lakhey, Paleswan JoshiAbstract Background: Postoperative pancreatic fistula remains the most challenging complication following pancreaticoduodenectomy. As per the definition by the International Study Group on Pancreatic Fistula, post operative pancreatic fistula is diagnosed on or after postoperative day 3. However, several studies have demonstrated that drain fluid amylase on postoperative day 1 may be a better predictor. This study was conducted to determine the diagnostic value of day one drain amylase in predicting the development of post-operative pancreatic fistula. Methods: This was a prospective observational study of patients, who underwent pancreaticoduodenectomy between April 2016 and May 2017. Post operative pancreatic fistula was defined by the International Study Group on Pancreatic Fistula (2005) criteria. The diagnostic value of day one drain amylase was determined by doing a receiver operating curve analysis and compared with the postoperative day 3 value. Results: A total of 49 patients were included. Post operative pancreatic fistula developed in 28 patients (Grade A - 40.8%; B - 12.2%; C - 4.1%). Receiver operating curve analysis confirmed the predictive relationship of day one drain amylase with an area under the curve of 0.79 and kappa 0.5. For clinically relevant postoperative pancreatic fistula, day 3 drain amylase was the better predictor (AUC for DFA3 was 0.73 while AUC for DFA1 was 0.51). A day one drain amylase cut-off value of 350 U/L demonstrated a sensitivity of 75% and specificity of 77.8% with an accuracy of 76.2%. Conclusions: Day one drain amylase predicts postoperative pancreatic fistula in patients following pancreaticoduodenectomy but for clinically relevant postoperative pancreatic fistula, day three drain amylase is a better predictor. Keywords: Amylase; drain fluid amylase; pancreaticoduodenectomy; Pancreatic fistulaPublication Management of Postpancreatectomy Hemorrhage Following Pancreaticoduodenectomy at a Tertiary Care Center in Nepal(Institute of Medicine, 2020) Subedi, Nirajan; Kandel, Bishnu; Ghimire, Bikal; Kansakar, Prasan BS; Bhandari, Ramesh S; Lakhey, Paleswan JoshiABSTRACT Introduction: Postpancreatectomy hemorrhage (PPH) is an important complication which significantly increases morbidity and mortality following pancreaticoduodenectomy (PD). This study aims to find the incidence, classification, management, and mortality associated with PPH following PD. This study also describes the changes in management and outcomes between the period of 2004-2014 and 2015-2019 in our institute as in the later time period there was use of CT angiography and interventional radiology (IR) to identify and control the bleeding site. Methods: This is a retrospective study in which medical records of patients having PPH following PD between 2004-2019 were analyzed. The grading and classification were done according to the International Study Group of Pancreatic Surgery (ISGPS). Management and outcomes were analyzed using standard descriptive statistics. Results: A total of 43 patients developed PPH out of 336 PDs. Out of 43 patients, 4 (9.3%) had Grade A, 16 (37.2%) had Grade B and 23 (53.5%) had Grade C PPH. Fifteen (35%) patients were managed conservatively, seven (16.2%) with IR procedure and 21 (48.8%) were reexplored. There were 16 (37.2%) mortalities, out of different factors- intraoperative blood loss >500 ml showed the predictability for mortality (p= 0.01). On comparing two time periods it was seen that the PPH rate was almost similar but the mortality decreased from 58.8% to 23.07%. Conclusion: PPH following PD is associated with high mortality. Increased use of IR procedure and CT angiography can decrease the relaparotomy rates and eventually decrease mortality. Keywords: Interventional radiology, pancreaticoduodenectomy, postpancreatectomy hemorrhage