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Dive into the research topics where Rajneesh Kumar Singh is active.

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Featured researches published by Rajneesh Kumar Singh.


World Journal of Gastroenterology | 2011

Anterior resection for rectal carcinoma - risk factors for anastomotic leaks and strictures.

Ashok Kumar; Ram Daga; Paari Vijayaragavan; Anand Prakash; Rajneesh Kumar Singh; Anu Behari; Vinay K. Kapoor; Rajan Saxena

AIM To determine the incidence and factors responsible for anastomotic leaks and stricture following anterior resection (AR) and its subsequent management. METHODS Retrospective analysis of data from 108 patients with rectal carcinoma who underwent AR or low anterior resection (LAR) to identify the various preoperative, operative, and post operative factors that might have influence on anastomotic leaks and strictures. RESULTS There were 68 males and 40 females with an average of 47 years (range 21-75 years). The median distance of the tumor from the anal verge was 8 cm (range 3-15 cm). Sixty (55.6%) patients underwent handsewn anastomosis and 48 (44.4%) were stapled. The median operating time was 3.5 h (range 2.0-7.5 h). Sixteen (14.6%) patients had an anastomotic leak. Among these, 11 patients required re-exploration and five were managed expectantly. The anastomotic leak rate was similar in patients with and without diverting stoma (8/60, 13.4% with stoma and 8/48; 16.7% without stoma). In 15 (13.9%) patients, resection margins were positive for malignancy. Nineteen (17.6%) patients developed anastomotic strictures at a median duration of 8 mo (range 3-20 mo). Among these, 15 patients were successfully managed with per-anal dilatation. On multivariate analysis, advance age (> 60 years) was the only risk factor for anastomotic leak (P = 0.004). On the other hand, anastomotic leak (P = 0.00), mucin positive tumor (P = 0.021), and lower rectal growth (P = 0.011) were found as risk factors for the development of an anastomotic stricture. CONCLUSION Advance age is a risk factor for an anastomotic leak. An anastomotic leak, a mucin-secreting tumor, and lower rectal growth predispose patients to develop anastomotic strictures.


Journal of Gastrointestinal Surgery | 2008

Xanthogranulomatous Inflammatory Strictures of Extrahepatic Biliary Tract: Presentation and Surgical Management

Ravula Phani Krishna; Ashok Kumar; Rajneesh Kumar Singh; Sadiq S. Sikora; Rajan Saxena; Vinay K. Kapoor

BackgroundXanthogranulomatous cholecystitis (XGC) is a benign, invasive variant of chronic cholecystitis. Invasion of common bile duct (CBD), termed as xanthogranulomatous choledochitis, may mimic malignancy. We describe clinico-pathological features and management of xanthogranulomatous inflammatory biliary strictures.MethodsA review of a prospectively maintained database for XGC was performed.ResultsOut of 6,150 cholecystectomies performed, 620 patients had XGC (10% incidence). Four patients had biliary strictures with xanthogranulomatous choledochitis on final histology. All four patients presented with jaundice and history of cholangitis. Ultrasonography revealed gallstones and thick-walled gallbladder in all. Two patients had hilar strictures: one had mid-CBD stricture and one had a lower-CBD stricture with a dilated pancreatic duct. In all four patients, preoperative diagnosis of malignancy was entertained. Three patients underwent resection—CBD excision for mid-CBD stricture, pancreaticoduodenectomy for lower-end stricture, and right hepatectomy for hilar stricture with atrophy-hypertrophy complex. One patient with unresectable hilar stricture underwent hepaticojejunostomy.ConclusionXanthogranulomatous choledochitis may be considered as one of the differential diagnosis in patients with biliary stricture especially in a geographical area with a high incidence of XGC, when a patient harbors gall stones and had thick-walled gall bladder on imaging. This stricture can be found anywhere in the biliary tree from hepatic hilum to the lower end. However, preoperative imaging and cytology are unreliable both in confirming the diagnosis or ruling out malignancy. Therefore, resection of the stricture should be attempted wherever feasible.


Surgery Today | 2011

Post-endoscopic retrograde cholangiopancreatography perforation managed by surgery or percutaneous drainage

Ravula Phani Krishna; Rajneesh Kumar Singh; Anu Behari; Ashok Kumar; Rajan Saxena; Vinay K. Kapoor

PurposePost-endoscopic retrograde cholangiopancreatography (ERCP) perforation usually resolves conservatively; however, intervention is sometimes needed, and there is a paucity of literature regarding the best management approach. We evaluated our experience of managing post-ERCP perforations to help define the role of surgery with percutaneous drainage (PCD).MethodsA retrospective chart review revealed 14 cases of post-ERCP perforation with intra-abdominal sepsis referred for intervention. We analyzed data pertaining to clinical details, management, and outcome.ResultsThere were 12 patients with duodenal perforation and 2 with biliary perforation. Most (10/14; 72%) had symptom onset within 48 h, but delayed diagnosis or referral resulted in a mean delay until intervention of 6.6 days (range 1–18 days). Computed tomography revealed localized collections in 9 (64%) patients. Seven patients with localized collections and no or minimal contrast leak underwent PCD and rest, and 7 underwent surgery. The indications for surgery were free perforation, generalized peritonitis, and major contrast leak. Overall morbidity was 50% and there was one early postoperative death, caused by severe sepsis.ConclusionThere should be a high index of suspicion of perforation when abdominal signs and symptoms develop after ERCP. Computed tomography is the investigation of choice for diagnosis and guiding therapy. With judicious selection of surgery or PCD based on clinical and imaging features, patients can be managed with acceptable morbidity and low mortality.


Journal of Medical Case Reports | 2010

Recurrent lower gastrointestinal bleeding from idiopathic ileocolonic varices: a case report

Ravula Phani Krishna; Rajneesh Kumar Singh; Uday C. Ghoshal

IntroductionVarices of the colon are a rare cause of lower gastrointestinal bleeding, usually associated with portal hypertension due to liver cirrhosis or other causes of portal venous obstruction. Idiopathic colonic varices are extremely rare. Recognition of this condition is important as idiopathic colonic varices may be a cause of recurrent lower gastrointestinal bleeding.Case presentationWe report the case of a 21-year-old Asian man from north India who presented with recurrent episodes of lower gastrointestinal bleeding. Colonoscopy revealed varices involving the terminal ileum and colon to the sigmoid. Thorough evaluation was undertaken to rule out any underlying portal hypertension. Our patient underwent subtotal colectomy including resection of involved terminal ileum and an ileorectal anastomosis.ConclusionColonic varices are an uncommon cause of lower gastrointestinal bleeding. Idiopathic colonic varices are diagnosed after excluding underlying liver disease and portal hypertension. Recognition of this condition is important as prognosis is good in the absence of liver disease and is curable by resection of the involved bowel.


Hpb | 2009

Surgical management of patients with post-cholecystectomy benign biliary stricture complicated by atrophy–hypertrophy complex of the liver

Biju Pottakkat; Ranjit Vijayahari; Koteswara V. Prasad; Sadiq S. Sikora; Anu Behari; Rajneesh Kumar Singh; Ashok Kumar; Rajan Saxena; Vinay K. Kapoor

BACKGROUND Atrophy-hypertrophy complex (AHC) of the liver rarely complicates post-cholecystectomy benign biliary strictures (BBS). This study aimed to analyse the effect of AHC on the surgical management of patients with BBS. METHODS Between 1989 and 2005, 362 patients underwent surgical repair for BBS at a tertiary referral centre in northern India. A total of 36 (10%) patients had AHC. Patients with AHC (n= 36) were compared with those without (n= 336) to define the factors associated with the development of AHC. RESULTS Overall, 35 patients with AHC underwent Roux-en-Y hepaticojejunostomy; right hepatectomy was performed in one patient. The interval between bile duct injury and stricture repair did not influence the development of AHC (mean 24 months in AHC patients vs. 19 months in non-AHC patients; P= 0.522). Of the 36 patients with AHC, 26 (72%) had hilar strictures (Bismuths types III, IV, V), as did 163 of the 326 (50%) patients without AHC (P= 0.012). Patients with AHC had more blood loss at surgery (mean blood loss 340 ml in the AHC group vs. 190 ml in the non-AHC group; P= 0.004) and required more blood transfusion (mean blood transfused 300 ml vs. 120 ml; P= 0.001). Surgery was prolonged in AHC patients (mean duration of operation 4.2 hours in the AHC group vs. 2.8 hours in the non-AHC group; P= 0.001). Over a mean follow-up of 43 months (range 6-163 months), three of 36 (8%) AHC patients required re-intervention for recurrent strictures, compared with nine of 326 (3%) non-AHC patients (P= 0.006). CONCLUSIONS Iatrogenic injury at the hepatic hilum predisposes for the development of AHC. Surgery is more difficult and blood transfusion requirements are higher in patients with AHC during surgical repair of BBS. Atrophy-hypertrophy complex is a risk factor for recurrent stricture formation after hepaticojejunostomy.


Hpb | 2009

Peri‐operative outcomes for pancreatoduodenectomy in India: a multi‐centric study

Parul J. Shukla; Savio G. Barreto; M.M.S. Bedi; N. Bheerappa; Adarsh Chaudhary; M.D. Gandhi; M. Jacob; S. Jesvanth; Devy Gounder Kannan; Vinay K. Kapoor; Ashok Kumar; Kewal K. Maudar; Hariharan Ramesh; R.A. Sastry; Rajan Saxena; Ajit Sewkani; S. K. Sharma; Shailesh V. Shrikhande; A. K. Singh; Rajneesh Kumar Singh; Rajagopal Surendran; Subodh Varshney; V. Verma; V. Vimalraj

BACKGROUND There have been an increasing number of reports world-wide relating improved outcomes after pancreatic resections to high volumes thereby supporting the idea of centralization of pancreatic resectional surgery. To date there has been no collective attempt from India at addressing this issue. This cohort study analysed peri-operative outcomes after pancreatoduodenectomy (PD) at seven major Indian centres. MATERIALS AND METHODS Between January 2005 and December 2007, retrospective data on PDs, including intra-operative and post-operative factors, were obtained from seven major centres for pancreatic surgery in India. RESULTS Between January 2005 and December 2007, a total of 718 PDs were performed in India at the seven centres. The median number of PDs performed per year was 34 (range 9-54). The median number of PDs per surgeon per year was 16 (range 7-38). Ninety-four per cent of surgeries were performed for suspected malignancy in the pancreatic head and periampullary region. The median mortality rate per centre was four (range 2-5%). Wound infections were the commonest complication with a median incidence per centre of 18% (range 9.3-32.2%), and the median post-operative duration of hospital stay was 16 days (range 4-100 days). CONCLUSIONS This is the first multi-centric report of peri-operative outcomes of PD from India. The results from these specialist centers are very acceptable, and appear to support the thrust towards centralization.


International Journal of Surgery | 2009

Resectional Surgery in Achalasia Cardia

Avinash Tank; Ashok Kumar; T.L.V.D. Prasad Babu; Rajneesh Kumar Singh; Rajan Saxena; Vinay K. Kapoor

To assess the outcome of esophageal resection in a patient with achalasia cardia. Retrospective analysis of 20 cases who underwent single or two stage esophageal resection for achalasia cardia. Total of 33 patients were treated surgically for achalasia cardia between 1989 and 2006. Twenty of these patients underwent esophageal resection. There were 13 males and seven females with a median age of 41 years (range 27-73 years). Patients were divided into two groups for description, one who underwent esophageal resection for end stage achalasia and another who underwent esophageal resection for iatrogenic esophageal perforations following pneumatic balloon dilatation.


Korean Journal of Hepato-Biliary-Pancreatic Surgery | 2016

Mirizzi's syndrome: lessons learnt from 169 patients at a single center

Ashok Kumar; Ganesan Senthil; Anand Prakash; Anu Behari; Rajneesh Kumar Singh; Vinay K. Kapoor; Rajan Saxena

Backgrounds/Aims Mirizzis syndrome (MS) poses great diagnostic and management challenge to the treating physician. We presented our experience of MS cases with respect to clinical presentation, diagnostic difficulties, surgical procedures and outcome. Methods Prospectively maintained data of all surgically treated MS patients were analyzed. Results A total of 169 MS patients were surgically managed between 1989 and 2011. Presenting symptoms were jaundice (84%), pain (75%) and cholangitis (56%). Median symptom duration s was 8 months (range, <1 to 240 months). Preoperative diagnosis was possible only in 32% (54/169) of patients based on imaging study. Csendes Type II was the most common diagnosis (57%). Fistulization to the surrounding organs (bilio-enteric fistulization) were found in 14% of patients (24/169) during surgery. Gall bladder histopathology revealed xanthogranulomatous cholecystitis in 33% of patients (55/169). No significant difference in perioperative morbidity was found between choledochoplasty (use of gallbladder patch) (15/89, 17%) and bilio-enteric anastomosis (4/28, 14%) (p=0.748). Bile leak was more common with choledochoplasty (5/89, 5.6%) than bilio-enteric anastomosis (1/28, 3.5%), without statistical significance (p=0.669). Conclusions Preoperative diagnosis of MS was possible in only one-third of patients in our series. Significant number of patients had associated fistulae to the surrounding organs, making the surgical procedure more complicated. Awareness of this entity is important for intraoperative diagnosis and consequently, for optimal surgical strategy and good outcome.


Gut and Liver | 2013

Risk Factors for Development of Biliary Stricture in Patients Presenting with Bile Leak after Cholecystectomy

Hosur Mayanna Lokesh; Biju Pottakkat; Anand Prakash; Rajneesh Kumar Singh; Anu Behari; Ashok Kumar; Vinay K. Kapoor; Rajan Saxena

Background/Aims This study was aimed at determining the factors associated with the development of benign biliary stricture (BBS) in patients who had sustained a bile duct injury (BDI) at cholecystectomy and developed bile leaks. Methods A retrospective analysis of 214 patients with BDI who were referred to our center between January 1989 and December 2009 was done. Results One hundred fifty-three (71%) patients developed BBS (group I), and 61 (29%) were normal (group II). By univariate analysis, female gender (p=0.02), open cholecystectomy as the index operation (p=0.0001), delay in the referral from identification of injury (p=0.04), persistence of an external biliary fistula (EBF) beyond 4 weeks (p=0.0001), EBF output >400 mL (p=0.01), presence of jaundice (p=0.0001), raised serum total bilirubin level (p=0.0001), raised serum alkaline phosphatase level (p=0.0001), and complete BDI (p=0.0001) were associated with the development of BBS. Furthermore, open cholecystectomy as the index operation (p=0.04), delayed referral (p=0.02), persistent EBF (p=0.03), and complete BDI (p=0.001) were found to predict patient outcome in the multivariate analysis. Conclusions For the majority of patients with BDI, the risk of developing BBS could have been predicted at the initial presentation.


Digestive Surgery | 2010

Incidence, Pattern and Management of Bile Duct Injuries during Cholecystectomy: Experience from a Single Center

Biju Pottakkat; Ranjith Vijayahari; Anand Prakash; Rajneesh Kumar Singh; Anu Behari; Ashok Kumar; Vinay K. Kapoor; Rajan Saxena

Background: The incidence and pattern of bile duct injury (BDI) may be underreported because of the heterogeneous referral from multiple institutions. Methods: Retrospective analysis of data from 5,782 cholecystectomies performed between 1989 and 2007 was done. BDI were categorized into Strasberg types. Results: Fifty-seven (1%) patients sustained BDI. Ten of 57 (18%) patients had minor BDI (type A-10), 25/57 (44%) had major BDI (type C-3, type D-14, type E-8) and BDI could not be classified in the remaining 22/57 (39%) patients. Twenty-one of 25 (84%) major BDI were detected at operation – 21/57 (37%) injuries were detected and repaired intra-operatively. The other 36/57 (63%) injuries were detected after operation – 11 were managed expectantly, 5 had endoscopic stenting, 3 underwent percutaneous drainage of bilioma, 1 had a laparoscopic clipping of the subvesical duct, 4 underwent laparotomy and 12 required a combination of interventions. Five of the 57 (9%) patients died. At follow-up, 1 patient developed bile duct stricture which was managed endoscopically. All other patients were doing well at the last follow-up. Conclusions: In experienced centers, most of the major BDI can be detected and managed during cholecystectomy. Good results can be achieved by judicious selection of a combination of interventions in the majority of patients.

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Rajan Saxena

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Vinay K. Kapoor

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Ashok Kumar

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Anu Behari

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Anand Prakash

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Biju Pottakkat

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Ravula Phani Krishna

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Abhimanyu Kapoor

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Sadiq S. Sikora

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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Ganesan Senthil

Sanjay Gandhi Post Graduate Institute of Medical Sciences

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