ADAbhay Narendra Dalvi

Abhay Narendra Dalvi

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


Abhay Narendra Dalvi has a total of 62 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Training in Minimal Access Surgery: A Perspective

    by Abhay Dalvi

    Minimal access surgery (MAS) represents the third major revolution in surgical practice after anaesthesia and antisepsis. Despite its widespread adoption, structured training in MAS has lagged behind, often leaving postgraduate curriculum incomplete. This manuscript explores the evolution of MAS training, highlighting the unique challenges of eye-hand coordination, depth perception, and reliance on camera system. Various training modalities including endotrainers, animal and cadaveric models, simulators, observer ships, and credentialing programmes are critically examined. The emergence of robotic surgery introduces new skill sets and assessment tools, necessitating comprehensive curriculum that integrate simulation, team coordination, and structured certification. Future horizons point towards affordable robotic systems, virtual reality, and AI-powered feedback, making training more realistic and accessible. A structured, credentialed approach remains essential to ensure safe surgical practice and optimal patient outcome.

  • Open Access

    Pararectal angiomyxoma: a diagnostic dilemma

    by Abhay N Dalvi, Mahadeo N Garale, Jayati J Churiwala, Avinash Landge, Sakina Husain, Ajinkya Rewatkar

    Clinical diagnosis of pararectal masses remains a challenge to this day. Despite the availability of advanced imaging facilities, we often fail to reach a definitive diagnosis and have to resort to surgery. We describe a case of a 60-year-old female with a painless perianal swelling gradually increasing in size for 6 months with spontaneous reduction on assuming a supine position. Clinical examination of this patient was suggestive of a pelvic floor hernia. However, radiological investigations were suggestive of an ischiorectal abscess. In view of lack of radiological corroboration of clinical findings, patient underwent diagnostic laparoscopy which ruled out a hernia. A wide local excision of the mass was performed, which on histopathology with immunohistochemistry examination revealed an aggressive pararectal angiomyxoma.


  • Open Access

    Laparoscopic surgery for solitary insulinoma in the absence of IOUS

    by Abhay Narendra Dalvi, Mahadeo Namdeo Garale, Yogesh Prabhakar Takalkar, Sameer Ashok Rege, Pinky Manoharlal Thapar, Lila Anurag, Nalini Samir Shah

    Background: Insulinomas are the most common pancreatic neuroendocrine neoplasms. In spite of adequate pre-operative localisation, conventional surgical methods rely on intraoperative palpation. Intraoperative ultrasonography (IOUS) is said to aid in accurate localisation, decreases morbidity. Laparoscopic removal of pancreatic endocrine neoplasms is beneficial due to magnification and minimal invasion; however, in the absence of IOUS, error of judgement may lead to conversion to open surgery, thereby relying on 'palpation method' to localise the tumour. We combined laparoscopic surgical removal of insulinomas using an innovative method of 'laparoscopic finger palpation' with intraoperative blood glucose monitoring and frozen section for surgical cure. Materials and Methods: Patients were evaluated and investigated by the department of endocrinology and referred for surgical management of insulinoma. Pre-operative localisation of insulinoma was done by either contrast-enhanced computerised tomography angiogram – arterial and venous phase, or endoscopic ultrasound (EUS) or DOTATATE scan. Intraoperative localisation was done by laparoscopic dissection and 'laparoscopic finger palpation'. After enucleation, the specimen was sent for frozen section, and in the interim period, serial monitoring of blood glucose was done by the anaesthetist. Maintenance of glucose levels for more than 45 min after enucleation and confirmation of neuroendocrine tumour on frozen section was the end point of surgical procedure. Results: A total of 19 patients were subjected to laparoscopic removal of solitary insulinomas. Enucleation was performed in 16 patients successfully. In three patients, laparoscopic distal pancreatectomy was performed. Three patients had pancreatic duct leak, of which two patients responded to conservative approach and the third patient required drainage by USG-guided pigtail catheter. All patients are cured of their disease and no patient has had recurrence so far. Conclusion: Multidisciplinary approach involving laparoscopic palpation, frozen sections and intraoperative blood sugar monitoring helps laparoscopic management of solitary insulinomas without IOUS.


  • Open Access

    Laparoscopic cholecystectomy with choledochoduodenostomy in a patient with situs inversus totalis

    by Abhay N Dalvi, Yogesh P Takalkar, Mandar S Koranne, Kumar S Vashist, Pranalee G Khedekar, Mahadeo N Garale, SameerA Rege

    A 50-year-old female presented to us with features of obstructive jaundice. Investigations revealed cholelithiasis with single large impacted calculus in the common bile duct (CBD) and significant dilatation of extrahepatic biliary tree. Incidentally, the patient was also detected to have situs inversus totalis (SIT). Attempt at extraction of the calculus in the CBD by endoscopic retrograde cholangiography failed, and a 7F stent was placed. The patient was subjected to laparoscopic cholecystectomy, CBD exploration with the extraction of the offending calculus and laparoscopic choledochoduodenostomy (LCDD). The patient had an uneventful recovery and is since discharged. PubMed search did not reveal LCDD in SIT as a procedure reported in literature to the best of our knowledge.


  • Multiple endocrine neoplasia type 1 syndrome: single centre experience from western India

    by Manjunath Goroshi, Tushar Bandgar, Anurag R. Lila, Swati Sachin Jadhav, Shruti Khare, Shailesh V. Shrikhande, Shinya Uchino, Abhay N. Dalvi, Nalini S. Shah

    Multiple endocrine neoplasia type 1 syndrome (MEN1) is a rare autosomal dominant familial cancer syndrome affecting multiple endocrine glands. Published literature on MEN1 from Indian subcontinent is scarce. We report here a case series of MEN1 patients (n = 18) from 14 unrelated families. Retrospective study describing the clinical profile of MEN1 patients from endocrine unit of a tertiary care hospital from western India. Additionally clinical profile of primary hyperparathyroidism (PHPT) in MEN1 patients was compared with that of apparently sporadic PHPT cohort from our centre. Eighteen patients (10 males, 8 females) diagnosed as MEN1 were included. Mean age at diagnosis was 31.5 ± 10.6 years (range 17–54). Incidence of primary hyperparathyroidism (PHPT), pituitary adenoma (PA), and gastro-entero-pancreatic neuroendocrine tumor (GEP-NET) was 94.4, 72.2, and 72.2 %, respectively. GEP-NET was the commonest presenting lesion (33.3 %), followed by PA (27.7 %), PHPT (16.6 %), thymic carcinoid (5.5 %), while 16.6 % cases were identified on family screening. PHPT manifestations (clinical and biochemical) in MEN1 were less severe as compared to those of sporadic PHPT. Contrast enhanced computed tomography (CECT) and 68Ga-DOTANOC PET/CT were equally sensitive (64.7 vs. 63.5 %) in identifying multiglandular parathyroid disease. Non functioning tumors (NFT) were the most common GEP-NET, followed by insulinoma (5/13, two were metastatic). 68Ga-DOTANOC PET/CT had higher sensitivity in detecting GEP-NET lesions than CECT (100 vs. 62.5 %). The most common pituitary lesion was prolactinoma, and all were cabergoline responsive. Genetic analysis was available in 13 patients and 11 patients showed mutation in MEN1 gene. The clinical profile of MEN1 in Asian Indian patients is largely comparable to that reported in other cohorts. Peculiar findings of our cohort are predominance of GEP-NET as a presenting manifestation and relatively higher prevalence of insulinoma with higher occurrence of metastatic insulinoma. Clinical and biochemical profile of MEN1 associated PHPT is less severe than that of our sporadic PHPT.


  • Open Access

    Laparoscopic excision of infra-renal PEComa

    by Abhay N Dalvi, Amol H Bhanushali, Harikant S Bhanushali

    Perivascular epitheloid cell tumors (PEComas) are rare tumors of malignant potential. There is no normal cell variant to these cells. The family is large and includes angiomyolipoma, clear cell "sugar" tumor amongst others. Imaging modalities are not very diagnostic. The diagnosis hence is often postoperative. A 55-year old female presented to us with ultrasonographic diagnosis of solid mass in the right infrarenal region. Contrast-enhanced computerized sonography (CECT) suggested paraganglioma or a soft tissue retroperitoneal tumor. Laparoscopic excision was successful. The rarity of this pathology and laparoscopic modality of excision prompted us to publish this report.


  • Open Access

    Laparoscopic adrenalectomy for large tumours: Single team experience

    by Abhay N Dalvi, Pinky M Thapar, Vinaykumar B Thapar, SameerA Rege, AparnaA Deshpande

    Background: Laparoscopic adrenalectomy (LA) has become the procedure of choice to treat benign functioning and non-functioning adrenal tumours. With improving experience, large adrenal tumours (> 5 cm) are being successfully tackled by laparoscopy. This study aims to present our single unit experience of LA performed for large adrenal masses. Materials and Methods: Forty-six laparoscopic adrenalectomies performed for large adrenal lesions more than 5 cm during the period 2001 to 2010 were reviewed. Results: A total of 46 adrenalectomies were done in 42 patients. The mean tumour size was 7.03 cm (5-15 cm). Fourteen patients had tumour size more than 8 cm. The lesions were localised on the right side in 17 patients and on the left side in 21 patients with bilateral tumours in 4 patients. Functioning tumours were present in 32 of the 46 patients. The average blood loss was 112 ml (range 20-400 ml) with the mean operating time being 144 min (range 45 to 270 min). Five patients required conversion to open procedure. Three of the 46 patients (6.52%) on final histology had malignant tumours. Conclusion: LA is safe and feasible for large adrenal lesions. Mere size should not be considered as a contraindication to laparoscopic approach in large adrenal masses. Graded approach, good preoperative assessment, team work and adherence to anatomical and surgical principles are the key to success.


  • Open Access

    Thoracoscopic removal of impacted denture: Report of a case with review of literature

    by Abhay N Dalvi, Vinay K Thapar, Sachin Jagtap, Devyani J Barve, Dattaraj P Savarkar, Mahadev N Garle, Akash P Shukla

    Impacted foreign bodies in the oesophagus are common. Because of their large size, rigidity and pointed edges, dentures get frequently impacted in the oesophagus and are difficult for endoscopic retrieval. Traditional thoracotomy for retrieval of impacted foreign bodies in the thoracic oesophagus is associated with significant morbidity. We present a case of impacted denture in the mid-oesophagus successfully removed using minimal access thoracoscopic procedure.


  • Open Access

    Laparoscopic Heller′s cardiomyotomy in cirrhosis with oesophageal varices

    by Abhay N Dalvi, Pinky M Thapar, Nitin M Narawane, Rippan N Shukla

    Surgical intervention in cirrhosis of liver with portal hypertension is associated with increased morbidity and mortality. This is attributed to liver decompensation, intra-operative bleeding, prolonged operative time, wound related and anaesthesia complications. Laparoscopic surgery in cirrhosis is advantageous but is associated with technical challenges. We report one such case of hepatitis C cirrhosis with oesophageal varices and symptomatic achalasia cardia, who was successfully treated by laparoscopic cardiomyotomy after thorough preoperative workup and planning. In the review of literature on pubmed, no such case is reported.


  • Has experience changed the scenario in laparoscopic adrenalectomy?

    by Abhay N. Dalvi, Pinky M. Thapar, Nalini S. Shah, Padma S. Menon

    Laparoscopic adrenalectomy (LA) is a relatively uncommon operation performed by surgeons with a specific interest in endocrine surgery as well as advanced laparoscopic surgery. LA is technically difficult and it is recommended to tackle small glands first till adequate experience is reached [1]. A minimum of 30 cases are required to master the technique [2]. The present study reviews data of 60 laparoscopic adrenalectomies comparing the later results with the first 30 cases. Starting 2001, patients diagnosed to have adrenal disorders were subjected to laparoscopic approach in a graded manner. A database was maintained with respect to age, sex, duration of symptoms, co-morbid conditions, diagnosis, size of tumor, weight of tumor, blood loss, duration of surgery, conversion to open, in-hospital stay, referral pattern, morbidity (both early and late) and mortality. The database was divided into two groups. First 30 patients constituted Group A, Group B constituted the next 30 adrenalectomies and deviation in the two was noted. Statistical analysis was performed to determine the importance of deviation of factors. Sixty adrenalectomies were performed in 49 patients (11 being bilateral) between February 2001 and July 2008. Age group varied from 12–54 years with mean of 30.73 years, Twenty four were males. Thirty-one right and 29 left LA were performed. The comparison of factors in relation to the two groups (Group A and B respectively) revealed an increase in number of adrenalectomies performed (0.4 v/s 0.76) in relation to timeline, increased incidence of pheochromocytoma (6 v/s 18) and incidentalomas (zero v/s 8), larger tumor size (4.17 cm v/s 6.6 cm), comparable blood loss (72 cc v/s 98.3 cc) and duration of surgery (122 min v/s 112 min), increased conversion to open surgery (1 v/s 6) leading to increased in-hospital stay (2.8 days v/s 3.37 days) but a comparable morbidity (2 v/s 1) and no mortality. Though technically difficult, with increasing experience and focused approach, laparoscopic skills in adrenalectomy improves. The spectrum of indications broadens, thus making laparoscopic interventions for vascular and large adrenal glands safe and patient friendly.