Michael Stifelman's research while affiliated with Meridian School and other places

Publications (35)

Article
Full-text available
Injury to the superior mesenteric artery (SMA) is a rare, underreported, and potentially devastating complication. This study aims to propose a systematic workup to describe how to prevent and manage SMA injury in a standardized stepwise manner. Three different instances of intraoperative injury to the SMA are described in an accompanying video. Al...
Article
Objective Preoperative surgical planning for localized, small renal masses relies on two-dimensional axial imaging when determining suitability for partial vs radical nephrectomy. Iris, a recently introduced segmentation software, generates interactive three-dimensional virtual models to aid preoperative surgical planning and intraoperative navigat...
Article
Purpose Single-port (SP) robotic surgery is a new technology and early in its adoption curve. The goal of this study is to compare the perioperative outcomes of single port (SP) to multi-port (MP) robotic technology for partial nephrectomy. Materials and Methods This is a prospective cohort study of patients who have undergone robot-assisted partia...
Article
Full-text available
The objective of this study was to compare the perioperative and short-term functional and oncological outcomes of single-port and multiport robotic-assisted laparoscopic partial nephrectomy using propensity-score analysis. We evaluated all patients who underwent robotic partial nephrectomy at our institution between January 2019 and October 2020....
Article
Full-text available
NTRODUCTION AND OBJECTIVE: Injury to the Superior Mesenteric Artery (SMA) during renal surgery is a rare but potentially devastating complication. It can rarely occur in patients with large left renal tumors and bulky lymphadenopathy, or in the setting of re-do surgery with significant retroperitoneal and intraabdominal scarring, which may distort...
Article
Introduction: Single-port robotic-assisted simple prostatectomy (SP RASP) through the transvesical approach is a novel surgical option in the management of large prostatic glands. We present the first multi-institutional study to further assess the perioperative and postoperative outcomes of SP RASP. Patients and methods: From February 2019 to N...
Article
Objectives : To compare the perioperative results and intermediate-term functional outcomes of single port and multiport robotic-assisted laparoscopic prostatectomy by using a propensity-score analysis. Materials and Methods : We evaluated all patients who underwent robotic prostatectomy by three urologic surgeons at our institution between Januar...
Article
INTRODUCTION AND OBJECTIVE: The introduction of the da Vinci Single Port (SP) robot allowed to perform prostate surgery using the transvesical approach, with promising outcomes. We sought to compare the perioperative outcomes between SP transvesical simple prostatectomy (SP) and multiport simple prostatectomy (MP) in a multi-institutional setting....
Article
Full-text available
Horseshoe kidney is a congenital disorder in which two kidneys are fused together in the isthmus. The anatomy could lead to increased risk of urinary tract infections and renal cancers. When performing a hemi-nephrectomy, it is important to identify all blood supply and ensure total excision of parenchyma and collecting system of the moiety operate...
Article
Objectives To compare the perioperative and postoperative outcomes of single port robotic pyeloplasty and multiport robotic pyeloplasty using a propensity-score matched analysis. Materials and Methods We performed a chart review of all patients who underwent single port robotic pyeloplasty from January 2019 to October 2020 and multiport robotic py...
Article
Introduction & objective: Scant literature is available on surgical outcomes of radical cystectomies on the new single-port (SP) system. This study compares short term outcomes in patients undergoing radical cystectomy with intracorporeal urinary diversion (ICUD) on the multi-port (MP) vs. SP platform. Methods: This IRB approved study used a pro...
Article
INTRODUCTION AND OBJECTIVE: Partial nephrectomy (PN) is the preferred surgical treatment of Kidney confined tumors, as it can preserve renal function without compromising oncologic control when compared to radical nephrectomy (RN) . However, a proportion of patients will be diagnosed with more aggressive pT3a disease at time of surgery, potentially...
Article
Objective To use a randomized, prospective, multi-institutional study to compare the safety and efficacy of conventional insufflation (CIS) and valveless insufflation (AirSeal Insufflation – AIS) at the conventional pressure of 15 mmHg in robot-assisted partial nephrectomy – a surgery where AIS has gained popularity for maintaining visualization de...
Article
Background: Renal cell carcinoma (RCC) originates from the renal parenchyma, whereas transitional cell carcinoma (TCC) originates from the renal urothelium. Although renal pelvis TCC is relatively rare in terms of urologic malignancies, it is the most common tumor originating in renal pelvis. Case presentation: A 75-year-old woman presented with g...

Citations

... However, they did find that those who underwent SP PN had significantly shorter median hospital stay (1.4 days vs 1.6 days, p=0.0045) and lower median opioid use on postoperative day 1 (4.6 MME vs 9.8 MME, p=0.0209). 36 Glaser et al also attempted to establish whether one technique was preferable when they examined 78 patients who underwent either SP PN (26) or MP PN (52). They found no significant differences between the two cohorts in mean operative time, rate of EBL >500 mL, complication rates, rate of discharge on postoperative day 1, or rates of opioid prescriptions being filled. ...
... In reality, the comfort of a large working space and improved visibility still make the transperitoneal approach favorable for most urologists (30). Single-port RARP could be performed in a smaller operating space, which allows it to be performed in extraperitoneal ways more easily (31). Compared with transperitoneal single-port RARP, extraperitoneal singleport RARP is associated with a significantly shorter postoperative hospital stay and decreased need for postoperative narcotics (32). ...
... The various RUR procedures and adjunctive techniques have been previously described and demonstrated in illustrative/video format. 15,18,20,21 ...
... 17 Surgical backlogs prompted some institutions to adapt surgical prioritization systems and increase available operating hours. 18,19 The quick rebound aided by these interventions may have prevented significant effects to resident case logs. ...
... Extra assistant ports and fanshaped retractor may be needed to help retracting the bowel. Valveless system (Airseal, ConMed, Largo, FL, USA) can be considered as this can maintain a stable pneumoperitoneum at a relatively low intra-abdominal pressure, typically at 12 mmHg [66,67]. This system also provides constant smoke evacuation and allows easy passage of gauze, specimens, and needles, which may potentially reduce the risk of SCE. ...