Sapan N. Ambani

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OBJECTIVE To compare our initial robotic-assisted nephroureterectomy (RAN) experience with a well-established practice of performing laparoscopic nephroureterectomy (LN) to treat upper tract urothelial carcinoma (UTUC). METHODS We reviewed our prospectively maintained minimally invasive surgery database. Patients who underwent RAN from April 2009 to(More)
BACKGROUND For the narrow ureter that will not accommodate a ureteroscope, it is common practice to place a ureteral stent, to allow subsequent ureteroscopy in the passively dilated ureter. Surprisingly, there are limited data on the effectiveness or safety of these maneuvers. METHODS We retrospectively analyzed patients managed with ureteral stent(More)
OBJECTIVE To review our clinical T1a renal mass active surveillance (AS) cohort to determine whether renal mass biopsy was associated with maintenance of AS. MATERIALS AND METHODS From our prospectively maintained database we identified patients starting AS from June 2009 to December 2011 who had at least 5 months of radiologic follow-up, unless limited(More)
OBJECTIVE To understand potential harms associated with delaying resection of small renal masses (SRMs) in patients ultimately treated, and whether these patients have factors associated with adverse pathology. METHODS Patients with SRMs (≤4cm) who underwent surgical resection at our institution (2009-2015) were classified as undergoing early resection or(More)
The presentation of a synchronous renal cell carcinoma (RCC) and germ cell tumor (GCT) is rare. We report the case of a 57 year-old male who presented with a right renal mass and retroperitoneal lymphadenopathy. He underwent a successful right partial nephrectomy and retroperitoneal lymph node dissection, and the subsequent pathology revealed a stage I(More)
To compare our experience with salvage laparoscopic pyeloplasty, using a matched control set of primary laparoscopic pyeloplasty patients. We retrospectively reviewed patients who underwent laparoscopic pyeloplasty from 1996 to 2014 by a single surgeon. At least 12 months of follow-up was required. Salvage patients were matched 1:3 with primary patients.(More)
BACKGROUND In 2013, we developed an education workshop to enhance the teaching skills of surgical fellows. We sought to investigate the feasibility of the monthly educational workshop format and its effect on participant teaching skills. STUDY DESIGN Surgical and medical education faculty created a broadly applicable curriculum developed from(More)
Ronney Abaza Aly Abdel-Karim Haidar Abdul-Muhsin Mehran Abolbashari Ahmad Abolyosr Ashraf Abou-Elela Omar Aboumarzouk Jose Benito Abraham Sxenol Adanur Samiran Adhikary Ramez Adrawis Anshuman Agarwal Mayank Agarwal Madhu Agrawal Sachin Agrawal Rajesh Ahlawat Tom Ahlering Murat Akand Oktay Akca Yigit Akin Joseph Akornor Yılmaz Aksoy Abdulaziz Al Athel Turki(More)
In 2015, population-based studies in patients with urinary stones informed us of the changing trends in contemporary stone management and identified areas for improvement. Although meta-analyses aim to provide the highest level of evidence, a randomized controlled trial of medical expulsive therapy challenged current paradigms and was the defining(More)
OBJECTIVE To investigate whether shortened inpatient length of stay (LOS) after radical cystectomy (RC) is associated with increased complication rates after hospital discharge. MATERIALS AND METHODS The analytic cohort comprised 484 consecutive patients with 90-day follow-up who underwent RC at our institution from 2005 to 2012 and with LOS ≤9 days.(More)