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Dive into the research topics where Sanjay N Oak is active.

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Featured researches published by Sanjay N Oak.


Urology | 1999

Color flow Doppler sonography: a reliable alternative to voiding cystourethrogram in the diagnosis of vesicoureteral reflux in children

Sanjay N Oak; Bharati Kulkarni; Nitin Chaubal

OBJECTIVES In children with urinary tract infection, the incidence of vesicoureteral reflux (VUR) is nearly 30% to 40%. The standard for the diagnosis of VUR is voiding cystourethrography (VCUG). This study assessed the role of color flow Doppler sonography (CFDS) in the diagnosis of VUR and ureteral jets. METHODS CFDS imaging was performed in 36 patients aged 6 months to 13 years during a 4-year period. All patients underwent CFDS and VCUG within 24 to 48 hours, but the findings of the VCUG were not reported to the sonologist. The ultrasound examinations were done using a color Doppler real-time machine. Representative images of the bladder events were recorded with a multiformat camera and on VHS videotape. RESULTS The duration of the Doppler signal varied from 0.4 to 7.5 seconds. In 31 (86.1%) of 36 patients, the results of CFDS correlated well with VCUG findings. There were three false-negative and two false-positive results in the present study. Six patients underwent reimplantation during the course of their treatment. CFDS was used as a follow-up modality at the end of 6 months, and the results correlated well with standard VCUG in 4 of these patients. In the remaining 2 patients, only CFDS was performed and correlation with VCUG was not possible. VCUG was considered the reference standard in assessing the sensitivity of CFDS. CONCLUSIONS CFDS of the bladder during the filling and micturating phases is a reliable and sensitive modality for identifying VUR and demonstrating ureteral jets. CFDS nullifies the danger of exposure to ionizing radiation and avoids the unpleasant catheterization many of these children fear.


Pediatric Surgery International | 1997

Papillomatosis of the gallbladder in metachromatic leukodystrophy

Sanjay N Oak; Rao S; S. Karmarkar; Bharati Kulkarni; Kalgutkar A; Malde A; Naik L

A 2-year-old boy who presented with a cystic gallbladder mass was found histologically to have metachromatic leukodystrophy. Diffuse hyperplasia of the gallbladder mucosa, multiple tendrillar fronds extending into the lumen, extensive papillomatosis, and the presence of large numbers of macrophages bearing metachromatic material confirmed the diagnosis. The child developed progressive degeneration of the central nervous system, refractory bronchopneumonia, and generalized muscular atrophy. A computed tomographic scan of the brain demonstrated hypodense areas of white matter suggestive of demyelination. This report describes the rare association of gallbladder papillomatosis with a storage disorder and reviews the relevant literature.


Journal of Pediatric Surgery | 1997

13 Pairs of ribs—A predictor of long gap atresia in tracheoesophageal fistula

Bharati Kulkarni; R.Sanjay Rao; Sanjay N Oak; M.A Upadhyaya

BACKGROUND/PURPOSE Results of treatment of tracheoesophageal fistula (TEF) have improved over the years. However, long gap atresias continue to be a problem and require modification in the conventional operation. Preoperative diagnosis of a long gap atresia in a case of TEF is difficult, and often the defect is noted only at thoracotomy, thus necessitating multiple intraoperative changes in the position of the neonate. In the past 5 years the authors have treated 61 cases of TEF. Of these, 12 had a long gap atresia. Nine of these 12 patients had 13 pairs of ribs. None of the patients with a short gap atresia had 13 pairs of ribs. Hence, the presence of 13 pairs of ribs is a good indicator of long gap atresia. In a child who has TEF with 13 pairs of ribs, suitable modifications in operative procedure can be planned. The report also discusses the possible embryological basis of this association.


The Journal of Urology | 1995

THE 3-LOOP TECHNIQUE: A RELIABLE TECHNIQUE FOR ANTERIOR PUBIC FIXATION IN BLADDER EXSTROPHY

Santosh J. Karmarkar; Joy V. Patankar; Sanjay N Oak; Ravindra H. Ramadwar; Bharati Kulkarni; Snehalata S. Deshmukh

PURPOSE In exstrophic anomalies the ultimate urological outcome largely depends on successful initial closure of the lower urinary tract and soft tissues. We believe that secure anterior pubic fixation is crucial for ensuring successful closure. After being dissatisfied with other methods of anterior pubic fixation we introduced the 3-loop method. The 3-loop technique and our experience with it are described. MATERIALS AND METHODS In 2 years 7 consecutive cases of bladder exstrophy were closed using the 3-loop technique. Patient age at closure ranged from newborn to 9 years. RESULTS In all 7 patients closure was successful and there was no cutting through of the wires, bony erosion, or erosion into the reconstructed bladder neck or urethra. The duration of postoperative traction was only 2 weeks. CONCLUSIONS The 3-loop method is useful and reliable for secure anterior pubic fixation of the pubes in bladder exstrophy patients and it contributes positively to the ultimate urological outcome.


Journal of Pediatric Surgery | 2010

Congenital pouch colon with rectal atresia: a case report

Sandesh V. Parelkar; Sanjay N Oak; Pankaj Mishra; Amit Agrawal; Milind Joshi; Shangvi Beejal; Gupta Rahul; Prakash Advait

The association of congenital pouch colon with rectal atresia is quite rare with only 2 cases previously reported in literature. We describe the third such case and the second instance to survive. Although the prior survivor was managed by a single-stage procedure, we successfully managed our case by staged procedures. In this case report, we discuss the etiology and surgical options available for this rare condition.


Journal of Surgical Technique and Case Report | 2012

An Unusual Presentation of Vallecular Cyst with near Fatal Respiratory Distress and Management Using Conventional Laparoscopic Instruments

Sandesh V. Parelkar; Jiwan L Patel; Beejal Sanghvi; Prashant B Joshi; Subrat K Sahoo; Nandita Sampat; Sanjay N Oak; Nilam Sathe

Vallecular cyst is a rare cause of upper airway obstruction in infants and children and presentation like acute stridor with near fatal respiratory distress is extremely rare. It is one of the rare causes of difficult intubation, during which cyst aspiration can improve the access. Vallecular cyst is commonly managed using microlaryngoscope and specialized instruments. We hereby report a method of endoscopic management of these cysts using conventional laparoscopic instruments.


Pediatric Surgery International | 2002

A new technique for repair of exstrophy-epispadias complex

Bharati Kulkarni; Navin Chaudhary; Sunil Yadav; Sanjay N Oak

Abstract. We report a new method of repair of exstrophy-epispadias complex (EEC) at a second stage by using flaps from the skin between the penis and scrotum (the clitoris and labia majora in females) used in seven patients. The non-pigmented skin between the penis and scrotum in males or a band of skin between the clitoris and labia majora in female is mobilized in two flaps, which are rotated superiorly. Five patients were treated primarily by this method and two patients at the time of secondary reconstruction. There were six boys and one girl. Two patients were post-pubertal, one male and one female. Follow-up (6–12 months) revealed good cosmetic and functional results. If EEC is repaired in a single stage, the entire pelvic diaphragm is visualized from inside and the sphincters can be reconstructed around the bladder neck. This procedure gives better exposure of attachments of the corporal bodies to the pubic rami, allowing easier mobilization. The bulbospongiosus muscle can be reconstructed. A normal penoscrotal relation is achieved in male patients. The root of the scrotum, which is splayed out and wide, narrows. Rotation of the flaps superiorly normalizes the symphyseal area. In female patients the appearance of the mons pubis is satisfactory. In post-pubertal children the pubic hair distribution appears normal.


Journal of Minimal Access Surgery | 2013

Minimal access surgery in newborns and small infants; five years experience.

Sandesh V. Parelkar; Sanjay N Oak; Mitesh Bachani; Beejal Sanghvi; Rahul Kumar Gupta; Advait Prakash; Rajashekhar Patil; Subrat K Sahoo

AIMS AND OBJECTIVES: The aim of this study was to assess and present the outcome (initial experience and lessons learnt) of minimally invasive surgery for various indications in neonates and small infants (< 5 kg) at a single medical centre. MATERIALS AND METHODS: A retrospective analysis was performed on 65 patients (age day 2 to 10 months) managed with minimal access surgery (MAS) for various indications, between 2005 and 2010. We analyzed demographic information, procedures, complications, outcomes, and follow-up and overall feasibility of the procedure. RESULTS: No serious complications except one death in congenital diaphragmatic hernia (CDH) (due to other comorbidities) occurred. Intra operative hypercarbia and hypoxia were observed more frequently in thoracoscopic procedures. Intra operative hypothermia was not common and was well tolerated. Conversion to open procedure (n = 5), post operative ileus (n = 3), port site infection (n = 5) were other complications. CONCLUSION: MAS in neonates and small infants is a technically demanding but a feasible choice available. Some prior experience in older children is required for safe and effective outcome. Good quality optics, video equipments and instruments are required for safe and effective procedure. Intra operative measurement of oxygen saturation and temperature, and diligent post operative ICU care are mandatory for safe and successful outcome.


Journal of Indian Association of Pediatric Surgeons | 2013

Biliary fascioliasis: Management in a child using endoscopic retrograde cholangio pancreatography

Sandesh V. Parelkar; Sanjay N Oak; Amit Maydeo; Beejal Sanghvi; Prashant Joshi; Nitin Chaubal; Rajasekhara T Patil; Subrat K Sahoo; Patel Jiwan Lal; Nandita Sampath; Avani Koticha

A 9-year-old boy presented with right upper abdominal pain and fever. The radiologic investigations revealed multiple cholangitic abscesses with cholangitis and worms in common bile duct. Endoscopic retrograde cholangio pancreatographic (ERCP) sphincterotomy, basketing, ballooning and extraction of Fasciola hepatica worms from the common bile duct were done.


Pediatric Surgery International | 1998

Presacral teratoma presenting with congenital urinary ascites

Sanjay N Oak; A. Trivedi; T. Karande; S. Karmarkar; Bharati Kulkarni

Congenital teratomas occur most frequently in the sacrococcygeal region. Most grown into a large perineo-sacral swelling that is conspicuous externally. Infrequently, the neoplasm is contained almost entirely within the pelvis in the presacral space. Congenital urinary ascites is observed in patients with obstructive uropathy; posterior urethral valves in a newborn is one of the most prominent causes of urinary ascites. We report a case of presacral teratoma leading to rupture of the urinary bladder due to outflow obstruction and causing urinary ascites. The ascites was drained, the bladder was repaired, and the teratoma was successfully excised. A review of the literature did not reveal any similar case.

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Sandesh V. Parelkar

King Edward Memorial Hospital

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Bharati Kulkarni

Lokmanya Tilak Municipal General Hospital

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Beejal Sanghvi

King Edward Memorial Hospital

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Subrat K Sahoo

King Edward Memorial Hospital

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Pooja Multani

King Edward Memorial Hospital

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Satej S Mhaskar

King Edward Memorial Hospital

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Shalil H Patil

King Edward Memorial Hospital

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Advait Prakash

King Edward Memorial Hospital

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Dinesh Mundada

King Edward Memorial Hospital

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