Sanjat Gambhir

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PURPOSE We assessed the specific preoperative sonographic and urinary factors that may be important in predicting renal function outcomes after pyeloplasty. MATERIALS AND METHODS We prospectively studied 52 consecutive patients with ureteropelvic junction obstruction who underwent pyeloplasty at our tertiary care center between September 2009 and January(More)
Our study was performed to find out cerebrovascular reactivity post acetazolamide administration in patients with peritumoral edema. Adult patients (n = 9) underwent CBF measurement by 99mTc-HMPAO SPECT pre and post 1 gram i.v. acetazolamide. In all patients, this procedure was repeated once again within 10 days of performing tumor removal. Five of these(More)
AIMS To evaluate if postoperative residual tumour imaged by either computed tomography or 201Tl single photon emission tomography (SPECT) carried out postoperatively could predict progression-free survival (PFS) in high-grade malignant gliomas. MATERIALS AND METHODS Thirty-three patients with high-grade malignant gliomas underwent both contrast-enhanced(More)
Following a forgotten iron splinter injury, a 19 year old male developed a slowly increasing extrathyroidal haematoma, which presented as a diagnostic dilemma. Surgical exploration failed to establish a diagnosis and was complicated by severe haemorrhage. Emergency angiography demonstrated injury to the superior thyroid artery. Therapeutic embolization and(More)
PURPOSE Internal stenting is an integral part of endopyelotomy. Studies in animals show good healing after 1 to 2 weeks of ureterotomy. Inherent stent related problems warrant a minimum possible duration of stenting without compromising the results of endopyelotomy. We performed a prospective randomized trial to evaluate the optimum duration of stenting(More)
Captopril renography is used for the non-invasive diagnosis of renovascular hypertension, but suffers from the drawbacks of lower sensitivity and false-positive tests due to a fall in blood pressure. Aspirin renography has been proposed as a useful test for evaluation of unilateral renal artery stenoses of moderate degree. We studied the clinical usefulness(More)
BACKGROUND SIMPLE II was a multi-centre, prospective registry study aimed at investigating the safety and efficacy of the Infinnium (Sahajanand Medical Technologies Pvt. Ltd, India) paclitaxel-eluting stent for the treatment of single de novo lesions in the native coronary arteries. METHODS One hundred and three patients with symptomatic coronary artery(More)
PURPOSE We evaluated the usefulness of power Doppler imaging (PDI) in diagnosing acute renal-transplant rejection. METHODS Twenty-eight patients underwent 33 renal-transplant biopsies for suspected acute rejection. Patterns of renal parenchymal vascularity revealed by PDI in patients with abnormal biopsy results were compared with patterns in a group who(More)
Carbon dioxide (CO2) and acetazolamide are increasingly being used as vasodilators to detect cerebrovascular reserve capacity in patients of chronic cerebrovascular disease. The functional cerebrovascular reserve or ability of cerebral vessels to lower their resistance in response to decrease in cerebral perfusion pressure is expressed as change in cerebral(More)
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