Michael Stifelman

Michael Stifelman
Hackensack University Medical Center | HUMC · Urology

MD

About

256
Publications
16,304
Reads
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6,364
Citations
Citations since 2017
46 Research Items
2566 Citations
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20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
Additional affiliations
January 2010 - December 2011
NYU Langone Medical Center
January 2009 - present
January 2008 - present
Education
June 1989 - June 1993

Publications

Publications (256)
Article
Introduction: Retroperitoneal robotic partial nephrectomy (RPN) has been shown to have comparable outcomes to the transperitoneal approach for renal tumors. However, this may not be true for completely endophytic tumors as they pose significant challenges in RPN with increased complication rates. Hence, we sought to compare the safety and feasibil...
Article
Objective: To describe the most recent surgical, functional, and oncological outcomes of RPN utilizing one of the largest, prospectively maintained, multi-institution consortium of patients undergoing robotic renal surgery. Materials and methods: Data was obtained from a prospectively maintained multi-institutional database of patients who under...
Chapter
The robotic approach for ureteral reconstruction has been widely popularized due to patient advantages that come with minimally invasive surgery, surgeon ergonomics, and reproducibility with outcomes comparable to that of open or laparoscopic surgery. While well-established reconstructive procedures such as pyeloplasty, ureteral reimplantation, and...
Article
Background: Management of complex renal masses is challenging in a solitary kidney setting. We retrospectively compared oncological and renal functional outcomes between robotic and open partial nephrectomy (PN) in patients with a pT2-pT3 renal mass and a solitary kidney. Methods: From a multi-institutional series, we identified 20 robotic parti...
Article
Objective: To develop a structured and objective scoring tool for assessment of robot assisted partial nephrectomy (RAPN): Scoring for Partial Nephrectomy (SPaN). Materials and methods: Content development: RAPN was deconstructed into 6 domains by a multi-institutional panel of 10 expert robotic surgeons. Performance on each domain was represent...
Chapter
Ureterolysis is the release of the ureter from its surrounding compressive fibrotic tissue. It is required in the setting of extrinsic compression from retroperitoneal disease processes, including idiopathic retroperitoneal fibrosis, lymphoma, infection, or scarring from previous surgery. Boari flap ureteral reimplantation is a reconstructive proce...
Article
Objectives To evaluate the effect of ureteral rest on outcomes of robotic ureteral reconstruction. Methods We retrospectively reviewed all patients who underwent robotic ureteral reconstruction of proximal and/or middle ureteral strictures in our multi-institutional database between 2/2012—03/2019 with ≥12 months follow-up. All patients were recom...
Article
Full-text available
Purpose: To report our intermediate-term, multi-institutional experience after robotic ureteral reconstruction for the management of long-segment proximal ureteral strictures. Materials and methods: We retrospectively reviewed our Collaborative of Reconstructive Robotic Ureteral Surgery (CORRUS) database to identify all patients who underwent ro...
Article
Objectives: To report our multi-institutional, comprehensive experience with robotic ureteral reconstruction (RUR) in patients with radiation-induced ureteral stricture (RIUS). Patients & methods: In a retrospective review of our multi-institutional robotic reconstruction database between January 2013 to January 2020, we identified patients with...
Article
Objectives To update our prior multi-institutional experience with robotic ureteroplasty with buccal mucosa graft and analyze our intermediate-term outcomes. Although our previous multi-institutional report provided significant insight into the safety and efficacy associated with robotic ureteroplasty with buccal mucosa graft, it was limited by sma...
Article
Objectives To report a multi-institutional experience with robotic appendiceal ureteroplasty. Methods This is a retrospective review of 13 patients undergoing right appendiceal flap ureteroplasty at two institutions between April 2016 and October 2019. The primary endpoint was surgical success defined by the absence of flank pain and radiographic...
Article
OBJECTIVES To describe surgical techniques and peri-operative outcomes with secondary robotic pyeloplasty (RP), and compare them to those of primary RP. METHODS We retrospectively reviewed our multi-institutional, Collaborative of Reconstructive Robotic Ureteral Surgery (CORRUS) database for all consecutive patients who underwent RP between 04/201...
Article
Full-text available
Introduction: Closed drains have traditionally been placed after partial nephrectomy because of risks of bleeding and urine leak. We sought to study the safety of a nonroutine drain (NRD) approach after transperitoneal robotic partial nephrectomy (RPN). Patients and Methods: From a multi-institutional database, we have analyzed the data of 904 pat...
Article
Objective: To describe a novel technique of ureteral reimplantation via robotic non-transecting side-to-side anastomosis. While the standard approach to ureteroneocystostomy has a high rate of success, it involves transection of the ureter which may impair vascularity and contribute to recurrent strictures. Our method seeks to maximally preserve d...
Article
Full-text available
Background: Single port (SP) robotic assisted laparoscopic surgery was approved by the FDA for urologic surgery and clinically available in 2018. This new robotic system enables a camera and 3 separate instruments, with fully wristed motions, to be placed through a single 25 mm port. This system was designed to perform complex surgery in narrow de...
Article
Objectives: To most accurately assess the risks and benefits of this technique we evaluated outcomes of selective clamping vs. full clamping in a patients with a solitary kidney undergoing robotic partial nephrectomy (RPN). Subjects/patients and methods: Data from IRB approved retrospective and prospective databases from 2006 to 2019 at multiple...
Article
Objective: To analyze whether selective arterial clamping (SAC) and Off-Clamp (OC) techniques during robotic partial nephrectomy (RPN) are associated with a renal functional benefit in patients with stage III-V CKD. Methods: The change in eGFR over time was compared between patients with baseline CKD 3-5 that underwent RPN with main arterial cla...
Article
Objectives: To assess the incidence of post-operative arterial malformation (AM) and urine leak/urinoma (UL) after robotic partial nephrectomy (RPN) in a contemporary series. To evaluate risk factors for these complications. Methods: All RPNs were queried from IRB-approved retrospective and prospective nephrectomy databases. Demographics, peri-o...
Chapter
Topics addressed in this chapter include steps to insure an accurate diagnosis, patient preparation and counseling, and how to set up the operating room for success with an emphasis on patient positioning and trocar configuration. We discuss specific robotic ureteral reconstruction surgeries including: robotic pyeloplasty, robotic ureteroureterosto...
Article
Introduction: Iatrogenic ureteral injuries represent a common surgical problem encountered by practicing urologists. With the rapidly expanding applications of robotic-assisted laparoscopic surgery, ureteral reconstruction has been an important field of recent advancement. This collaborative review sought to provide an evidence-based analysis of t...
Article
Background: Minimally invasive treatment of long, multifocal ureteral strictures or failed pyeloplasty is challenging. Robot-assisted buccal mucosa graft ureteroplasty (RBU) is a technique for ureteral reconstruction that avoids the morbidity of bowel interposition or autotransplantation. Objective: To evaluate outcomes for RBU in a multi-instit...
Chapter
Robot-assisted ureteral reconstruction can be formed for a wide variety of ureteral pathology. Ureterolysis and omental wrap is performed for retroperitoneal fibrosis. The location and length of ureteral stricture affects the management. Ureteral reimplantation is performed for distal strictures, while ureteroureterostomy is performed for short pro...
Article
Full-text available
Objective: To determine whether patient-specific 3D printed renal tumor models change pre-operative planning decisions made by urological surgeons in preparation for complex renal mass surgical procedures. Materials and methods: From our ongoing IRB approved study on renal neoplasms, ten renal mass cases were retrospectively selected based on Ne...
Article
Full-text available
A Satinsky clamp may be a backup option for hilar clamping during robotic partial nephrectomy (RPN) if there are challenges with application of bulldog clamps, but there are potential safety concerns. We evaluate outcomes of RPN using Satinsky vs. bulldog clamps, and provide tips for safe use of the Satinsky as a backup option. Using a multi-center...
Article
Introduction: We sought to compare surgical outcomes between transperitoneal and retroperitoneal robotic partial nephrectomy (RPN) for posterior tumors. Patients and methods: Using our multi-institutional RPN database, we reviewed 610 consecutive cases for posterior renal masses treated between 2007-2015. Primary outcomes were complications, ope...
Article
Objective: To evaluate the outcomes of robot-assisted partial nephrectomy RAPN after major prior abdominal surgery (PAS) using a large multicentre database. Patients and methods: We identified 1 686 RAPN from five academic centres between 2006 and 2014. In all, 216 patients had previously undergone major PAS, defined as having an open upper midl...
Article
Full-text available
Introduction: We sought to evaluate the association of obesity with surgical outcomes of robotic partial nephrectomy (RPN) using a large, multicentre database. Methods: We identified 1836 patients who underwent RPN from five academic centres from 2006-2014. A total of 806 patients were obese (body mass index [BMI] ≥30 kg/m(2)). Patient character...
Article
Background: The uptake of robotic surgery has led to changes in potential operative complications, as many surgeons learn minimally invasive surgery, and has allowed the documentation of such complications through the routine collection of intraoperative video. Objective: We documented intraoperative complications from robot-assisted radical pro...
Article
There is increasing interest in using imaging in the detection and localization of prostate cancer (PCa). Both multiparametric magnetic resonance imaging (mpMRI) and HistoScanning (HS) have been independently evaluated in the detection and localization of PCa. We undertook a prospective, blinded comparison of mpMRI and HS for cancer localization am...
Article
to evaluate the incidence of and risk factors for a urine leak in a large multicenter, prospective database of robotic partial nephrectomy (rpn). a database of 1791 rpn from five centers was reviewed for urine leak as a complication of rpn. patients with postoperative urine leaks were compared to patients without postoperative urine leaks on a vari...
Article
To describe the technique of robotic buccal mucosa graft ureteroplasty as a minimally invasive alternative method of ureteral reconstruction for proximal or multifocal ureteral strictures not amenable to primary anastomosis. Between October 2013 and May 2014, we performed robotic assisted ureteral reconstruction using buccal mucosa grafts in four p...
Article
We congratulate the authors on this helpful manuscript detailing robotic port placement for some of the most common minimally invasive urological procedures. The experience of almost 2400 cases over the past 4 years represents one of the most robust robotic cohorts in the country, and the community should take note of how their experience has affec...
Article
Near-infrared fluorescence (NIRF) imaging with intraoperative administration of indocyanine green (ICG) is a technology with emerging applications in urologic surgery. ICG is a water-soluble dye that fluoresces bright green when viewed under near-infrared light (700-1000 nm). This technology has been applied to robotic partial nephrectomy, first to...
Article
Introduction: Morbidity associated with traditional reconstruction of complex ureteral strictures has led to interest in applying the success of buccal graft urethroplasty to the ureter. Case reports suggest that this is a feasible technique, but it has never been reported in a minimally invasive repair.1 Materials and Methods: We performed robotic...
Article
The objectives of the present study were to report the incidence of pathologic T3a upstaging in a contemporary cohort of patients with clinical stage T1 (cT1) renal tumors treated with partial or radical nephrectomy; investigate the clinical outcomes; and identify the predictors associated with pathologic upstaging. From a single-institution, insti...
Article
Robot-assisted laparoscopic surgery is increasingly used in urologic oncologic surgery. Robotic nephroureterectomy is still a relatively new technique. As upper tract urothelial carcinoma is a rare disease, intermediate- and long-term outcome data are scarce. However, robotic nephroureterectomy does seem to offer advantages to open and laparoscopic...
Article
Full-text available
Introduction/objective: Robotic-assisted partial nephrectomy (RPN) offers a mean length of stay (LOS) of 2 to 3 days. The purpose of this study is to determine the impact of modifiable and nonmodifiable risk factors on hospital LOS after RPN. Patients and methods: We retrospectively reviewed our prospectively maintained database to identify all...
Article
Objective To compare the perioperative outcomes of RPN with LPN performed for SRMs, in a large multi-institutional series.To define a new composite outcome measure, termed “ optimal outcome” for the RPN group.Patients and Methods Retrospective review of 2392 consecutive cases of RPN and LPN performed in 5 high volume centres from 2004 to mid 2013.W...
Article
Objective To evaluate the outcomes of robot‐assisted partial nephrectomy RAPN after major prior abdominal surgery (PAS) using a large multicentre database. Patients and methods We identified 1 686 RAPN from five academic centres between 2006 and 2014. In all, 216 patients had previously undergone major PAS, defined as having an open upper midline/...
Article
Full-text available
Purpose: To compare the perioperative outcomes of robot-assisted partial nephrectomy (RAPN) with open partial nephrectomy (OPN) in solitary kidneys. Methods: Records of 1542 consecutive RAPN performed in five high-volume centers (2007-2013) were reviewed for patients with solitary kidneys. Results were compared with solitary OPN cases performed d...
Article
Background: The purpose of this study was to describe the clinicopathologic characteristics and oncologic outcomes of patients who underwent nephrectomy for cystic renal masses. Patients and methods: Using an institutional review board-approved database, we retrospectively reviewed the clinical, pathologic, radiologic, and oncologic outcome data...
Article
Purpose: We evaluated a published biopsy directed small renal mass management algorithm using a large cohort of patients who underwent robotic partial nephrectomy for tumors 4 cm or smaller. Materials and methods: A simplified algorithm of biopsy directed small renal mass management previously reported using risk stratified biopsies was applied...
Article
Objective: To compare renal functional outcomes in robotic partial nephrectomy (RPN) with selective arterial clamping guided by near-infrared fluorescence (NIRF) imaging to a matched cohort of patients who underwent RPN without selective arterial clamping and NIRF imaging. Methods: From April 2011 to December 2012, NIRF imaging-enhanced RPN with...
Article
Introduction: Near infrared fluorescence imaging with indocyanine green (ICG) is an adjunct technology to facilitate intraoperative assessment of renal vascularization and tissue perfusion. We present our surgical technique of robot-assisted partial nephrectomy (RAPN) with selective arterial clamping using near infrared fluorescence imaging. Materi...
Article
Objectives: To evaluate the cancer detection rates (CDR) for men undergoing 12 core systematic prostate biopsy with negative prebiopsy mpMRI (NegMR). Materials & methods: Clinical data from consecutive men undergoing prostate biopsy with prebiopsy 3T mpMRI from December 2011 to August 2014 were reviewed from an IRB approved prospective database....