Purpose: During ureteroscopic procedures, electrocautery is often utilized in the presence of an intra-ureteral guidewire. Inadvertent electrification of the guidewire may occur if the active electrode comes into contact with the guidewire, potentially resulting in a ureteral burn injury. This study investigates under what conditions electrification of a ureteral guidewire would result in ureteral burn injury.
View Article and Find Full Text PDFFatigue has been implicated in medical errors. There has not been any report in the surgical literature addressing the impact of case order on patient outcomes. The purpose of this study was to determine whether the order of robot-assisted radical prostatectomy (RARP) has an influence on surgical outcomes.
View Article and Find Full Text PDFPurpose: Although extraperitoneal robot-assisted radical prostatectomy (RARP) is gaining popularity, the majority of these procedures are performed transperitoneally. The purpose of this study was to compare the transperitoneal and extraperitoneal approaches for RARP.
Patients And Methods: We randomized 62 consecutive patients undergoing RARP into two equal groups according to the route of access.
Purpose: Cryptorchidism is the most common genital anomaly identified at birth, and endocrine disrupters in the environment may be causing an increase in this entity. To determine whether the rate of surgery for undescended testes is increasing, we evaluated all documented orchiopexies performed in New York State during a 19-year period.
Materials And Methods: We used the New York State Statewide Planning and Research Cooperative System database to identify all orchiopexies performed between 1984 and 2002.
Purpose: We hypothesized that the widespread adoption of prenatal ultrasound in the early 1980s has led to earlier and increased numbers of repairs for ureteropelvic junction (UPJ) obstruction.
Materials And Methods: The New York State Department of Health database was used to identify all patients who underwent pyeloplasty between 1984 and 2002.
Results: A total of 7,758 repairs were evaluated (6,725 pyeloplasties and 1,033 endopyelotomies).
Objective: To examine regional responses of control and obstructed rabbit detrusor strips to electrical and adrenergic stimulation, and determine whether outlet obstruction causes regional variations in blood flow throughout the detrusor, as the detrusor smooth muscle of the bladder body has previously been considered homogeneous in its pharmacological properties.
Materials And Methods: Fourteen male rabbits had the bladder outlet surgically obstructed for 2 weeks and were compared with 10 unoperated control rabbits. Blood flow was measured with the bladder empty and at capacity, using fluorescent microspheres.
Purpose: We mapped the regional distribution of alpha1 and beta-adrenergic receptors (ARs) in rabbit ventral and dorsal bladder, and characterized the alpha1-AR subtypes responsible for norepinephrine induced contraction of rabbit dorsal detrusor smooth muscle.
Materials And Methods: Responses to norepinephrine in the absence and presence of adrenergic antagonists were measured in strips taken from clearly defined regions of male rabbit ventral and dorsal bladder.
Results: In the absence of antagonists ventral strips from the bladder body relaxed in response to norepinephrine, while those from the ventral base contracted.
Purpose: Bladder outlet obstruction leads to bladder enlargement and subsequent decreases in contractile function in vivo and in vitro. We determined whether there were regional differences in bladder wall properties and in vitro contractile responses after 2 weeks of bladder outlet obstruction.
Materials And Methods: Male rabbits underwent cystometry.