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Dive into the research topics where Hemanga K. Bhattacharjee is active.

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Featured researches published by Hemanga K. Bhattacharjee.


Surgical Laparoscopy Endoscopy & Percutaneous Techniques | 2011

Single-port surgery and NOTES: from transanal endoscopic microsurgery and transvaginal laparoscopic cholecystectomy to transanal rectosigmoid resection.

Buess G; Mahesh C. Misra; Hemanga K. Bhattacharjee; Francisco C. Becerra Garcia; Virinder Kumar Bansal; Julio Ricardo Torres Bermudez

Two different ways have been developed to perform endoscopic surgery. The standard way is multiport laparoscopic surgery. When entering through a natural orifice, we use single-port surgery for transanal work (transanal endoscopic microsurgery). In clinical routine, we moved from intralumenal surgery toward surgery in the perirectal area and finally the free abdomen. In the context of natural orifice translumenal endoscopic surgery, we have modified the length and diameter of optics and tube and developed new mechanisms for steering long curved instruments. This technology is then used for transvaginal cholecystectomy and transanal rectosigmoid resection. Global clinical application of transanal endoscopic microsurgery has proven superiority in preciseness and clinical results for adenomas and early cancer. The initial clinical study for transvaginal cholecystectomy is successfully performed in 6 female patients with an average operation time of 80 minutes and without major complication. Feasibility of transanal rectosigmoid resection is demonstrated in an ex vivo experimental model.


Jsls-journal of The Society of Laparoendoscopic Surgeons | 2012

Laparoscopic Suturing Skills Acquisition: A Comparison Between Laparoscopy-Exposed and Laparoscopy-Naive Surgeons

Virinder Kumar Bansal; Tseten Tamang; Mahesh C. Misra; Pradeep Prakash; K. Rajan; Hemanga K. Bhattacharjee; Subodh Kumar; Amit Goswami

This study suggests that training improves laparoscopic suturing skills in experienced as well as inexperienced laparoscopic surgeons.


Journal of Emergencies, Trauma, and Shock | 2011

Duodenal perforation following blunt abdominal trauma

Hemanga K. Bhattacharjee; Mahesh C. Misra; Subodh Kumar; Virinder Kumar Bansal

Duodenal perforation following blunt abdominal trauma is an extremely rare and often overlooked injury leading to increased mortality and morbidity. We report two cases of isolated duodenal injury following blunt abdominal trauma and highlight the challenges associated with their management. In both these patients, the diagnosis of the duodenal injuries was delayed, leading to prolonged hospital stay. The first patient had two perforations, one on the anterior and the other on the posterior wall of the duodenum, of which the posterior perforation was missed at initial laparotomy. In the other patient, the duodenal injury was missed during the initial assessment in the emergency department. He returned to the emergency department 24 hours after discharge with abdominal pain and vomiting. During trauma related laparotomy, complete kocherization (mobilization) of the duodenum must be mandatory, even in the presence of obvious injury on its anterior wall. We emphasize on keeping the management protocol simple by a “triple tube decompression”, i.e. duodenorrhaphy (simple closure), tube gastrostomy, reverse tube duodenostomy and a feeding jejunostomy.


Journal of Surgical Education | 2014

A Prospective Randomized Controlled Blinded Study to Evaluate the Effect of Short-Term Focused Training Program in Laparoscopy on Operating Room Performance of Surgery Residents (CTRI /2012/11/003113)

Virinder Kumar Bansal; Rahul Raveendran; Mahesh C. Misra; Hemanga K. Bhattacharjee; K. Rajan; Asuri Krishna; Pankaj Kumar; Subodh Kumar

INTRODUCTION Laparoscopic surgery requires certain specific skills. There have been several attempts to minimize the learning curve with training outside the operation room. Although simulators have been well validated as tools to teach technical skills, their integration into comprehensive curricula is lacking. Several randomized controlled trials and systematic reviews have demonstrated that the technical skills learned on these simulators transfer to the operating room. Currently, however, the integration of these simulated models into formal residency training curricula is lacking. In our institute, we have adopted the Tuebingen Trainer devised by Professor GF Buess from Germany. The purpose of this study was to evaluate the training of surgical residents on an ex vivo phantom model for basic laparoscopic skill acquisition and its transferability to the OR performance. MATERIALS AND METHODS Seventeen general surgery residents were randomized into 2 groups: Laparoscopic Training Group (n = 9, Group A) and Standard Training Group (n = 8, Group B). Group A underwent training in the Minimally Invasive Surgery Training Centre on the porcine phantom model and did 10 laparoscopic cholecystectomies, whereas Group B did not undergo training in the Minimally Invasive Surgery Training Centre. All the participants performed a laparoscopic cholecystectomy in the operation theater in the presence of a consultant who was blinded to the training status of the participants. The performance of the residents in both groups in the operation theater was assessed using GOALS criteria, surgical performance assessment parameters, task-specific checklists, and visual analog scale for gallbladder perforation difficulty and overall competence. RESULTS The Laparoscopic Training Group had better performance than the Standard Training Group regarding operation time, GOALS criteria, and Task-specific checklists. Although the surgical performance assessments, i.e. cystic duct and artery identification scores, gallbladder perforation scores, and liver injury scores, were better in the Laparoscopic Training Groups, they were not statistically significant. The overall difficulty of the surgery was comparable in both the groups. The Laparoscopic Training Group exhibited significant overall competence on visual analog scale scores. CONCLUSION Our study has clearly shown that training on the Tuebingen Trainer with integrated porcine organs results in a statistically significant improvement in the operating room performance of surgical residents as compared with the nontrained residents, thereby indicating a transfer of skills from training to the operating room.


Surgical Laparoscopy Endoscopy & Percutaneous Techniques | 2010

Laparoscopic management of rare retroperitoneal tumors.

Mahesh C. Misra; Hemanga K. Bhattacharjee; Ashok K. Hemal; Virender K. Bansal

Due to their close proximity to major vessels, large size, variable location, and unknown malignant status, retroperitoneal tumors are frequently managed by open surgical exploration. Between 2005 and 2008, 4 patients with retroperitoneal tumors were subjected to laparoscopic management and there was success in 3 cases. Conversion to open resection was needed in 1 case because of bleeding. Mean laparoscopic operative time and blood loss were 154 minutes and 116 mL, respectively. The average hospital stay for the patients who were operated laparoscopically was 4 days. One patient had lymph drainage during the postoperative period and was treated conservatively. The histology reported retroperitoneal ganglioneuroma, retroperitoneal schwannoma, and retroperitoneal paraganglioma. There has been no tumor recurrence at a mean follow-up of 39 months. With advanced laparoscopic skills, better instrumentation, and vastly improved imaging, laparoscopic surgery is feasible even for rare retroperitoneal tumors, and in a selected group of patients it can be the first surgical option.


Hernia | 2008

Total extra-peritoneal repair of groin hernia: prospective evaluation at a tertiary care center

Mahesh C. Misra; Virinder Kumar Bansal; Subodh Kumar; B. Prashant; Hemanga K. Bhattacharjee

BackgroundThe laparoscopic repair of groin hernia is increasingly being used. However, the relative merits and demerits of laparoscopic repair are debatable. The present study was undertaken to evaluate the total extra-peritoneal (TEP) repair of groin hernia.MethodsThis prospective study was undertaken at a single surgical unit between January 2004 and June 2006. Consecutive patients with elective groin hernias were offered laparoscopic TEP repair. Indigenous balloon or telescopic dissection was used to create extra-peritoneal space. Polypropylene mesh was used in all of the patients and mesh fixation was performed with tackers.ResultsA total of 185 patients with age range 18–92 years were included; 180 were males. TEP repair was attempted in 298 groin hernias in 185 patients with a success rate of 89.5%. Indigenous balloon or telescopic dissection was used to create extra-peritoneal space. Thirty-one (31, 10.5%) TEP repairs were converted to transabdominal pre-peritoneal or open repair. Two patients developed recurrence during follow-up.ConclusionTEP is an excellent technique for laparoscopic groin hernia repair, with acceptable rates of complication.


Surgical Laparoscopy Endoscopy & Percutaneous Techniques | 2012

Are short-term focused training courses on a phantom model using porcine gall bladder useful for trainees in acquiring basic laparoscopic skills?

Virinder Kumar Bansal; Panwar R; Mahesh C. Misra; Hemanga K. Bhattacharjee; Jindal; Loli A; Amit Goswami; Krishna A; Tamang T

The best training method in laparoscopic surgery has not been defined. We evaluated the efficacy of laparoscopic skills acquisition in a short-term focused program. Two hundred fifty-six participants undergoing training on a phantom model were divided into 2 groups. Group 1 had no exposure and group 2 had performed a few laparoscopic surgeries. Acquisition of laparoscopic skills was assessed by operation time and the modified Global Operative Assessment of Laparoscopic Skills (GOALS) scale. A questionnaire was sent to the participants after 3 to 6 months for assessment of impact of training. There was a statistically significant improvement in the assessed parameters and in the mean score of all 5 domains of GOALS. The participants in group 2 performed better than those in group 1 in the first case. The difference between both the groups disappeared after the training. Participants who responded to the questionnaire felt that training helped them in improving their performance in the operation theater.


Archive | 2009

Transanal Resection of the Recto-sigmoid Colon: Feasibility Study for a Natural Orifices Transluminal Endoscopic Surgery Technique Based on the Principles of Transanal Endoscopic Microsurgery

Hemanga K. Bhattacharjee; Gerhard Buess; Fransisco Becera

Since 2004, a new concept for performing surgery without the trauma and the consequence of abdominal incision has emerged as Natural Orifices Transluminal Endoscopic Surgery (NOTES). Though the nomenclature is new but the concept has been in existence for almost three decades in the form of Transanal Endoscopic Microsurgery (TEM) developed by our group. After successful instrument design, experimental study and clinical application of transvaginal cholecystectomy, we have set out for major organ resections like recto-sigmoidal resection through the anus. We believe that the principles of TEM technology are suitable for major NOTES technique like recto-sigmoidal resection with radical lymphadenectomy and primary anastomosis. The technique has the potential of avoiding minilaparotomy and port site related trauma during laparoscopic colorectal surgery.


Surgical Endoscopy and Other Interventional Techniques | 2013

The EURO-NOTES clinical registry for natural orifice transluminal endoscopic surgery: a 2-year activity report

Alberto Arezzo; Carsten Zornig; Hamid Mofid; Karl-Hermann Fuchs; Wolfram Breithaupt; José F. Noguera; Georg Kaehler; Richard Magdeburg; Silvana Perretta; Bernard Dallemagne; Jacques Marescaux; Catalin Copaescu; Florin Graur; Andrei Szasz; Antonello Forgione; R. Pugliese; Gerhard Buess; Hemanga K. Bhattacharjee; Giuseppe Navarra; Mario Godina; Kirill Shishin; Mario Morino


Surgical Endoscopy and Other Interventional Techniques | 2011

A novel single-port technique for transanal rectosigmoid resection and colorectal anastomosis on an ex vivo experimental model

Hemanga K. Bhattacharjee; Buess G; Francisco Garcia; Pirmin Storz; Mousumi Sharma; Sidonia Susanu; Andreas Kirschniak; Mahesh C. Misra

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Mahesh C. Misra

All India Institute of Medical Sciences

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Virinder Kumar Bansal

All India Institute of Medical Sciences

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Subodh Kumar

All India Institute of Medical Sciences

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Amit Goswami

All India Institute of Medical Sciences

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Asuri Krishna

All India Institute of Medical Sciences

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K. Rajan

All India Institute of Medical Sciences

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Sandeep Aggarwal

All India Institute of Medical Sciences

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