Biomedical subjects
Publications and source records attributed to Ahmad H Bani-Hani.
Several neuromodulatory options are available for selected children who have voiding dysfunction resistant to conventional therapy. Integral to all types of treatment is an educated team that reinforces progress rather than cure and encourages long-term behavioral changes.
PURPOSE: Matrix stones are an uncommon form of urinary calculi and may be mistaken for tumors involving the renal collecting system, thereby presenting a diagnostic and therapeutic dilemma to the practicing urologist. MATERIALS AND METHODS: From 1980 to 2003 we identified 5 patients with urinary matrix stones referred to our tertiary medical center for evaluation and treatment. RESULTS: All 5 cases had complex clinical and radiographic features at presentation. We outline the clinical presentations, imaging findings and management, and review the literature of matrix stone disease. CONCLUSIONS: A high index of suspicion is required in diagnosing matrix calculi in addition to carefully selected radiographic imaging. Due to their variable appearance in standard radiological studies, the evaluation of matrix stones may require invasive techniques such as ureteroscopy for accurate diagnosis. Percutaneous removal is the primary treatment modality to render patients stone-free.
PURPOSE: We determined the incidence of and factors associated with the development of renal cell carcinoma (RCC) in the contralateral kidney after nephrectomy for localized RCC. MATERIALS AND METHODS: Between 1970 and 2000, 2,352 patients with sporadic, localized unilateral RCC and a normal contralateral kidney underwent nephrectomy for RCC. Cancer specific survival rates were estimated using the Kaplan-Meier method. Univariate Cox proportional hazards models were used to determine associations with outcome. RESULTS: Of the 2,352 patients studied 28 (1.2%) had RCC in the contralateral kidney, including 20 with clear cell and 8 with papillary RCC. Mean time from primary surgery to contralateral recurrence was 5.2 years (median 4.8, range 0 to 18) for clear cell RCC compared with 5.6 years (median 1.3, range 0 to 21) for papillary cell RCC. Positive surgical margins (risk ratio 14.23, p = 0.010) and multifocality (risk ratio 5.74, p = 0.019) were significantly associated with contralateral recurrence following nephrectomy for clear cell RCC, while nuclear grade (risk ratio for grades 3/4 vs 1/2, 4.78, p = 0.040) was significantly associated with contralateral recurrence following nephrectomy for papillary RCC. In patients with clear cell RCC estimated cancer specific survival rates 1, 3, and 5 years following contralateral recurrence were 93.8%, 80.2% and 72.9%, respectively. CONCLUSIONS: In patients with localized RCC and a normal contralateral kidney who underwent nephrectomy for RCC positive surgical margins and multifocality were significant predictors of contralateral recurrence for clear cell RCC, while nuclear grade was a significant predictor of contralateral recurrence for papillary RCC.
INTRODUCTION AND OBJECTIVE: Cost containment during techniques of laparoscopic radical prostatectomy remains an ongoing concern. We present a cost-effective alternative technique of specimen extraction using a surgical glove. MATERIALS AND METHODS: We describe an alternative technique of prostate removal using a surgical glove in seven patients who underwent laparoscopic radical prostatectomy using a robotic-assisted technique. RESULTS: The glove extraction technique was successful in all seven patients for which the method was attempted without complication. CONCLUSION: Similar to commercially available devices, a surgical glove provides a reliable straightforward means of specimen extraction during laparoscopic radical prostatectomy.