Andrew J Portis

Learn More
PURPOSE Laparoscopic nephroureterectomy has only recently been done to treat patients with upper tract transitional cell carcinoma. We retrospectively evaluated our experience with and long-term followup of laparoscopic nephroureterectomy, compared our results to those of contemporary series of open nephroureterectomy and reviewed the literature. (More)
PURPOSE Laparoscopic radical nephrectomy has been shown to be less morbid than traditional open radical nephrectomy. The long-term oncological effectiveness of laparoscopic radical nephrectomy remains to be established. MATERIALS AND METHODS At 3 centers patients undergoing laparoscopic radical nephrectomy before November 1, 1996 with pathologically(More)
PURPOSE The laparoscopic approach for renal cell carcinoma is slowly evolving. We report our experience with laparoscopic radical nephrectomy and compare it to a contemporary cohort of patients with renal cell carcinoma who underwent open radical nephrectomy. MATERIALS AND METHODS From 1990 to 1999, 32 males and 28 females underwent 61 laparoscopic(More)
PURPOSE In an effort to streamline a comparison of the effectiveness of a new lithotriptor with the standard HM3 lithotriptor (Dornier Medical Systems, Inc., Marietta, Georgia) we used a matched pair analysis design. A matched design often provides more efficient estimates (smaller variances) than an unmatched design given the same sample size. MATERIALS(More)
Autosomal dominant polycystic kidney disease (ADPKD) is often characterized by end-stage renal disease (ESRD) and problems including pain, hematuria, and infection. Open nephrectomy is curative; however, the morbidity of the procedure is considerable. Between 1995 and 1998, 11 laparoscopic nephrectomies were performed on nine symptomatic patients (five men(More)
PURPOSE Initial reports on laparoscopic bladder neck suspension have suggested success rates similar to those of traditional bladder neck suspension. We compare long-term success rates of laparoscopic and transvaginal Raz bladder neck suspension. MATERIALS AND METHODS A total of 100 patients with anatomical stress urinary incontinence underwent(More)
OBJECTIVES To evaluate intraoperative decision making regarding the necessity of second-look nephroscopy after percutaneous nephrolithotomy. METHODS Percutaneous nephrolithotomy was performed cooperatively by a urologist and radiologist equipped with a high-resolution C-arm. Ultrasonic lithotripsy was performed followed by thorough flexible nephroscopy(More)
PURPOSE Management of fragments generated by ureteroscopic laser lithotripsy remains controversial. In this study we explored the impact of active fragment extraction after ureteroscopic laser lithotripsy on stone clearance. MATERIALS AND METHODS A total of 69 patients with 3 or less upper urinary tract calculi (5 to 15 mm) demonstrated on preoperative CT(More)
PURPOSE We studied the impact of one dose of subarachnoid spinal analgesia on postoperative pain and recovery after percutaneous nephrolithotomy (PCNL). PATIENTS AND METHODS Between August 1999 and May 2000, 20 PCNL patients were randomized into two groups: Group A (N = 9), who received preoperative subarachnoid spinal analgesia with morphine sulfate, and(More)
The diagnosis and initial management of urolithiasis have undergone considerable evolution in recent years. The application of noncontrast helical computed tomography (CT) in patients with suspected renal colic is one major advance. The superior sensitivity and specificity of helical CT allow urolithiasis to be diagnosed or excluded definitively and(More)