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ABSTRACT: Duplications of the genitourinary tract are uncommon and may be a source of confusion in the early diagnosis of ureteral trauma when their presence is not suspected. We present a case of delayed diagnosis of a penetrating injury to a duplicated ureter and its management.
The Journal of trauma 02/1991; 31(1):140-2. · 2.48 Impact Factor
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ABSTRACT: A patient developing a colonic adenoma 38 years following ureterosigmoidostomy is presented. The mechanisms of neoplastic transformation associated with ureterosigmoidostomy is now better understood. This knowledge is being applied to develop modifications both of the surgical technique and the management of patients with this form of urinary diversion, and is a subject of discussion.
Journal of Surgical Oncology 12/1990; 45(3):207-11. · 2.10 Impact Factor
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ABSTRACT: We describe a new sphincter mechanism and its clinical application in 11 patients requiring continent diversion. The sphincter, composed of 2 short segments of ileum, is urodynamically responsive and actually increases its resistance to leakage when reservoir pressure or volume increases. Because of this dynamic continence control and its ease of construction, it appears to be a useful addition to the reconstructive urological armamentarium.
The Journal of Urology 09/1989; 142(2 Pt 1):293-6. · 3.75 Impact Factor
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ABSTRACT: This study evaluates the safety and efficacy of cefmetazole in comparison with cefoxitin in the parenteral treatment of patients hospitalized with acute urinary tract infections. Of the 49 evaluable patients, 27 were randomized to cefmetazole and 22 to cefoxitin. There was clinical success in 26 (96%) patients and bacteriological cure in 22 (81%) patients receiving cefmetazole. This compares with clinical success in 21 (95%) patients and bacteriological cure in 17 (77%) patients randomized to cefoxitin. There were no adverse reactions associated with either antibiotic. This study indicates that the clinical and bacteriological outcome was similar.
Journal of Antimicrobial Chemotherapy 05/1989; 23 Suppl D:35-8. · 5.07 Impact Factor
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ABSTRACT: Transrectal ultrasonography has proved valuable in assessing the effect of primary treatment modalities for prostate carcinoma. This study shows patients who had a significant reduction in primary tumor volume had a significantly better prognosis and had less local symptoms than did the group of patients that did not have a significant reduction (less than 50%) in primary volume secondary to therapy. Patients were treated with either castration or Zoladex and all had Stage D2 cancer of the prostate.
Urology 11/1988; 32(4):285-7. · 2.43 Impact Factor
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Urology 06/1988; 31(5):429-30. · 2.43 Impact Factor
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ABSTRACT: Urinary diversion utilizing a continence-maintaining ileal valve has been performed in 12 canines. This procedure offers a simple surgical procedure and uses the diversion's internal fluid pressure to maintain continence. Of 12 canines with this continence-maintaining ileal valve, 11 remained continent at sacrifice. Operative complications were minimal and late complications occurred in 2 dogs. Histological evaluation of the diversionary tissues revealed slight changes in the mucosa of the ileal valve, with some flattening of the villi. This procedure may have a clinical role in urinary diversion for patients with pelvic malignancy or patients who need urinary diversion for other reasons.
Journal of Surgical Oncology 05/1988; 37(4):252-6. · 2.10 Impact Factor
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ABSTRACT: We describe a new operation to create a continent, catheterizable urinary sphincter from a short segment of ileum. The sphincter has provided continence over a wide range of bladder pressures in dogs and it may be adapted to a variety of clinical continence requirements.
The Journal of Urology 11/1987; 138(4 Pt 2):996-9. · 3.75 Impact Factor
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ABSTRACT: We compared experimental ligature-induced ureteropelvic junction obstruction in the dog with naturally occurring ureteropelvic junction obstruction in children to determine if clinical behavior and difficulties in diagnosis could be related to different types or components of obstruction at the ureteropelvic junction. Measurements of flow rate out of the ligature-obstructed canine renal pelvis demonstrated a pressure-dependent pattern in which flow increased linearly in response to increasing pressures. In 5 human kidneys with intrinsic ureteropelvic junction obstruction a similar pressure-dependent pattern was demonstrated. This was in contrast to 6 human kidneys with extrinsic mechanical ureteropelvic junction obstruction in which a volume-dependent pressure flow pattern occurred, such that urinary flow rate did not keep pace with increases in pelvic pressure. In some cases flow actually decreased at high pressures because the ureteropelvic junction became self-obstructing as the pelvis enlarged. These findings indicate that the precise pathological anatomy of the ureteropelvic junction defines the pattern of flow across the obstruction. The 2 different types of obstruction, pressure-dependent and volume-dependent flow restrictions, which exist are important determinants of the clinical behavior of the obstructed kidney insofar as its potential for progressive hydronephrosis. They also help to explain why diagnostic tests for assessing obstruction in hydronephrosis are inaccurate at times.
The Journal of Urology 08/1986; 136(1 Pt 2):336-8. · 3.75 Impact Factor
