Amanjeet Singh
Medanta
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Featured researches published by Amanjeet Singh.
Hpb | 2009
Azhar Perwaiz; Dinesh Singhal; Amanjeet Singh; Adarsh Chaudhary
OBJECTIVES Pancreatic fistula (PF) predicts mortality and morbidity in patients undergoing pancreaticoduodenectomy (PD). This study aimed to assess whether isolated Roux loop pancreaticojejunostomy (IPJ) is superior to conventional pancreaticojejunostomy (CPJ). METHODS Between September 2003 and July 2007, we performed 108 PDs. All patients underwent classical Kausch-Whipple PD with pancreaticojejunostomy (PJ). Patients were divided into two groups based on the type of PJ. Patients in group 1 underwent IPJ and those in group 2 underwent CPJ. A retrospective analysis of prospectively maintained data was performed to compare outcomes in the two groups. RESULTS There were 53 patients in group 1 and 55 in group 2. The two groups were comparable in both pre- and intraoperative parameters. The overall incidence of PF was 10.1% (five cases in group 1 vs. six in group 2). The course of clinically significant PF was similar in both groups in terms of fistula behaviour, management and the duration of spontaneous closure. Two patients in each group died. Overall complications, mortality and length of hospital stay were also similar; however, duration of surgery was significantly higher in group 1 vs. group 2 (442 min and 370 min, respectively; P= 0.005). CONCLUSIONS Isolated Roux loop pancreaticojejunostomy is not superior to conventional PJ; instead, it increases the duration of surgery.
Pancreas | 2015
Adarsh Chaudhary; Savio George Barreto; Sanjay Talole; Amanjeet Singh; Azhar Perwaiz; Tanveer Singh
Objectives Shorter hospital stay after pancreatoduodenectomy (PD) is a desired goal. Implementation of enhanced recovery after surgery (ERAS) protocols can possibly help in achieving this target. We aimed to determine the factors influencing the successful implementation of ERAS protocols by analyzing their relation to the surrogate marker of enhanced recovery, namely, duration of hospital stay. Methods A retrospective analysis of a prospectively maintained ERAS database of 208 consecutive patients who underwent PD at a tertiary referral care center was done. Results Two hundred eight patients underwent a classical PD with a median duration of hospital stay of 8 days (range, 4–52 days) with an overall morbidity rate of 34.5% and a mortality rate of 3.8%. The 30-day readmission rate was 4% (8 patients). An elevated body mass index (relative risk, 1.098; 95% confidence interval, 1.015–1.188; P = 0.02) and respiratory comorbidities (relative risk, 8.024; 95% confidence interval, 2.018–31.904; P = 0.003) were independent factors resulting in a longer (>8 days) hospital stay. Conclusions Being overweight or obese and respiratory comorbidities are independent predictors of prolonged hospital stay despite the implementation of ERAS protocol. Hypoalbuminemia does not have a direct effect on hospital stay but may predispose the patient to the development of complications.
Journal of the Pancreas | 2010
Amanjeet Singh; Tanveer Singh; Adarsh Chaudhary
CONTEXT There is limited information available about the feasibility and benefits of synchronous resection of liver metastases in patients with pancreatic and periampullary cancer undergoing pancreaticoduodenectomy. OBJECTIVE We report on our experience with 7 such patients. DESIGN Analysis of the prospective database was carried out to identify patients who underwent synchronous resection of liver metastases with pancreaticoduodenectomy. PATIENTS Two-hundred and thirty patients underwent pancreaticoduodenectomy for pancreatic and periampullary cancer in our unit between September 2003 and September 2009. MAIN OUTCOME MEASURES The primary aim of our study was to determine the survival benefits and the secondary aim was to evaluate their safety and influence on the results of a pancreaticoduodenectomy. RESULTS Seven patients (3%) underwent synchronous resection of a solitary liver metastasis. In these patients, the operative time and intra-operative blood loss was marginally high as compared to the overall cohort of patients undergoing pancreaticoduodenectomy; however, the complication rates and the duration of the hospital stay were not affected. In patients undergoing resection of liver metastasis, there were 4 recurrences over a mean follow-up of 21 months. CONCLUSIONS In patients with resectable pancreatic and periampullary cancer, the resection of a solitary liver metastasis can safely be performed together with a pancreaticoduodenectomy; however, its impact on improving survival has yet to be proven.
Journal of the Pancreas | 2016
Azhar Perwaiz; Amanjeet Singh; Tanveer Singh; Adarsh Chaudhary
CONTEXT Pancreaticoduodenectomy entails ligation of vascular arcades arising from the celiac and superior mesenteric arteries. These are known to have anatomical variations. OBJECTIVE This study was aimed at analyzing the spectrum of arterial anomalies and their clinical impact on the procedure itself. PATIENTS The study includes 200 consecutive patients who underwent a pancreaticoduodenectomy between September 2003 and May 2009 after excluding those having distant metastases or local unresectability. MAIN OUTCOME MEASURES The records of the patients were studied to assess the incidence of arterial anomalies and the operative complexities involved in a pancreaticoduodenectomy. RESULTS Fifty-three patients (26.5%) had arterial anomalies. The complexity of the surgery was determined by the course of these arteries. The mean duration of surgery was 420 + or - 32.0 minutes in patients with arterial anomalies versus 370 + or - 38.5 minutes in those with a normal arterial anatomy (P=0.005). Fifty-one out of 53 (96.2%) patients underwent pancreaticoduodenectomy with negative resection margins. The pancreaticoduodenectomy was abandoned in two cases due to patient- and tumor-related factors. CONCLUSION During pancreaticoduodenectomy, arterial anomalies can increase operative complexity but do not usually compromise the safety of the procedure or its oncological outcome.
Pediatric Transplantation | 2011
Disha Sood; Neelam Mohan; Amanjeet Singh; Tarvinder Bir Singh Buxi; Samiran Nundy; Arvinder Singh Soin
Sood D, Mohan N, Singh A, Buxi TBS, Nundy S, Soin AS. Living donor liver transplantation for giant cavernous hemangioma of liver in a child. Pediatr Transplantation 2011: 15: E135–E139.
Indian Journal of Surgery | 2012
Azhar Perwaiz; Amanjeet Singh; Adarsh Chaudhary
Chronic pancreatitis (CP) is progressive inflammatory process of the pancreas. Abdominal pain remains the most debilitating symptom affecting quality of life, apart from diabetes mellitus, steatorrhoea and weight loss. The treatment options have evolved over the past decades and are aimed to provide durable relief in pain with possible attempt to support or improve the failing endocrine and exocrine functions. Surgical treatment options have shown the potentials to provide superior long term results compared to the pharmacological and endoscopic modalities and are broadly divided in to drainage, resection and combination hybrid procedures. The choice is based on the morphology of the main pancreatic duct, presence of head mass and associated complication of CP. Knowing the basic nature of the disease, total pancreatectomy seems a curative option but not without significant morbidities. There is recent paradigm shift towards organ sparing surgical procedures with reasonable success. Despite recent advancement in the treatment modalities for CP the overall quality of life remains moderate which need further addressal.
Future Oncology | 2017
Savio G. Barreto; Amanjeet Singh; Azhar Perwaiz; Tanveer Singh; Manish Kumar Singh; Adarsh Chaudhary
BACKGROUND Unnecessary preoperative ordering of blood and blood products results in wastage of a valuable life-saving resource and poses a significant financial burden on healthcare systems. AIM To determine patient-specific factors associated with intra-operative transfusions, and if intra-operative blood transfusions impact postoperative morbidity. PATIENTS & METHODS Analysis of consecutive patients undergoing pancreatoduodenectomy (PD) for pancreatic tumors. RESULTS A total of 384 patients underwent a classical PD with an estimated median blood loss of 200 cc and percentage transfused being 9.6%. Pre-existing hypertension, synchronous vascular resection, end-to-side pancreaticojejunostomy and nodal disease burden significantly associated with the need for intra-operative transfusions. Intra-operative blood transfusion not associated with postoperative morbidity. CONCLUSION Optimization of MSBOS protocols for PD is required for more judicious use of blood products.
Indian Journal of Medical Research | 2017
Savio George Barreto; Amanjeet Singh; Azhar Perwaiz; Tanveer Singh; Manish Kumar Singh; Sunil K. Sharma; Adarsh Chaudhary
Background & objectives: Infectious complications have been reported to occur in up to 45 per cent of patients, following pancreatoduodenectomy (PD). The incidence of perioperative infectious and overall complications is higher in patients undergoing preoperative invasive endoscopic procedures. The aim of the study was to compare the role of a carbapenem administered as three-once daily perioperative doses on infectious complications in patients at high risk for these complications versus those at low risk. Methods: A retrospective study with some secondary data collected from records was carried out on the data from a prospectively maintained surgical database of patients undergoing PD for pancreatic and periampullary lesions at a tertiary referral care centre, between June 2011 and May 2013. Patients were divided into two groups for comparison based on whether they underwent at least one preoperative endoscopic interventional procedure before PD (high-risk - intervention and low-risk - no intervention). All patients were administered three-once daily doses of ertapenem (1 g). Results: A total of 135 patients in two groups were comparable in terms of demographic and nutritional, surgical and histopathological factors. No significant difference between the two groups in terms of the overall morbidity (38.7 vs 35.7%), infectious complications (9.7 vs 4.8%), mortality (2.2 vs 2.4%) and mean post-operative hospital stay (9.2 vs 8.9 days) was observed. Interpretation & conclusions: Perioperative three-day course of once-daily administered ertapenem resulted in a non-significant difference in infectious and overall complications in high-risk patients undergoing PD as compared to the low-risk group.
Pancreatology | 2016
Savio George Barreto; Amanjeet Singh; Azhar Perwaiz; Tanveer Singh; Rohini Adlakha; Manish Kumar Singh; Adarsh Chaudhary
BACKGROUND Health care spending is increasing the world over. Determining preventable or correctable factors may offer us valuable insights into developing strategies aimed at reducing costs and improving patient care. The aim of this study was to conduct an exploratory analysis of clinical factors influencing costs of Pancreatoduodenectomy (PD). METHODS The financial and clinical records of 173 consecutive patients who underwent PD at a tertiary care referral centre, between January 2013 and June 2015 were analysed. RESULTS Complications, by themselves, did not increase costs associated with PD unless they resulted in an increase in the duration of stay more than 11 days. Intraoperative blood transfusion (p-.098) and performance of an end-to-side PJ (p-.043) were independent factors significantly affecting costs. Synchronous venous resections significantly increased costs (p-.006) without affecting duration of stay. Advancing age, hypertension, neurological and respiratory disorders, preoperative endoscopic retrograde cholangiopancreatography (ERCP), performance of a feeding jejunostomy, and surgical complications eg PPH, POPF and DGE significantly increased the duration of stay sufficient enough to influence costs of PD. CONCLUSIONS It is not the merely the development, but severity of complications that significantly increase the cost of PD by increasing hospital stay. Strategies aimed at reducing intraoperative blood transfusion requirement as well as minimising the development of POPF can help reduce costs. Synchronous venous resections significantly increase costs independent of hospital stay. This study identified nine factors that may be included in the development of a preoperative nomogram that could be used in preoperative financial counselling of patients undergoing PD.
Case Reports | 2013
Sandeep Batra; Ashok Vaid; Rahul Bhargava; Amanjeet Singh
A 47-year-old woman presented with ascites. There was history of large volume paracentesis and the drained ascitic fluid was found to be positive for malignant cells. Clinical examination revealed a soft tissue nodule over the skin of right iliac fossa and a small umbilical nodule besides presence of ascites. In addition, the patient had a breast lump of 2×2 cm in upper quadrant of right breast. Biopsy from the abdominal wall nodule revealed a malignant tumour with dense desmoplastic response. The tumour cells were pancytokeratin, CA125, WT1 positive and CDX2, CD10, villin, calretinin negative; thus immunohistochemically suggesting a primary tumor arising from ovary. Biopsy from breast lump showed malignant epithelial cells present in sheets with stromal dysplasia. Immunohistochemically tumour cells were positive for CK7. CA125, WT1, thus favouring a metastatic carcinoma to breast with possible primary arising from ovary.