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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Intussusception ureterectomy has been used to excise prophylactically the distal ureter in 10 patients with carcinoma of the renal pelvis. The procedure has proved safe and expeditious, as well as permitting more precise excision of the surrounding vesical mucosa.
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PMID:Transvesical intussusception (Lich) ureterectomy. 44 77

A unique case of a hitherto unreported antegrade intussusception of the ureter secondary to a lead pedunculated polypoid transitional cell tumor is presented. Radiological documentation and surgical verification are illustrated. An attempted explanation of the peculiar radiographic appearance proximal to and within the intussusception is given. The potential aid in preoperative recognition of such an entity is proposed.
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PMID:"Bell-shaped ureter," a radiographic sign of antegrade intussusception. 55 67

In 10 dogs in anti-reflux procedure by intussusception of the ureter is examined. The surgical procedure is developed and the urinary flow and prevention of the anti-reflux valve are explored. The study shows that an invagination is technically possible and that reflux can be prevented in half the cases without significant obstruction of the urinary flow.
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PMID:Prevention of reflux by a ureteric intussusception valve: a preliminary study on dogs. 102 59

One of the aims of bladder substitution or augmentation using the intestine is to preserve renal function. If reflux impairs renal function, an antireflux mechanism should be attempted. Direct ureteroileal reimplantation with spatulation of the ureter is safer and carries a lower risk of stenosis. The antireflux mechanism is created by ileoileal or ileocecal intussusception without involvement of the ureter. Thus we can diminish the risk of stenosis and reflux at the same time.
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PMID:[Why is intussusception an antireflux mechanism?]. 149 73

Endoscopic ureterectomy is a minimally invasive surgical technique indicated in cases warranting ureterectomy to complement extended nephrectomy for pyelocaliceal urothelial carcinoma. The results achieved are identical to those of conventional ureterectomy (open surgery) without the inconvenience or sequelae that usually present with the latter procedure. In 1982, the authors developed the modified Dell'Adami and Breda endoscopic ureterectomy technique. To date, they have performed their modified technique in 10 cases: 9 with infiltrating urothelial or highly malignant pyelic or caliceal tumor and 1 with diffuse leukoplasia and cholesteatoma of renal pelvis. The technique described herein permits intussusception of the ureter into the bladder by transurethral traction of a Chevassu ureteral catheter to which that cephalad end of the ureter is attached during the extended nephrectomy procedure. Once intussusception of the ureter has been achieved, a resectoscope is used to cut the ureter at the level of the ureteral meatus. Thereafter the mucosa of the corresponding trigonal horn is completely resected. The results are highly satisfactory in patients whose ureter has not previously been submitted to open surgery and is not compromised by tumor spread.
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PMID:[Endoscopic ureterectomy]. 175 73

A modification of intussusception ureterectomy is described. Dilatation of the ureter is unnecessary before the procedure and closure of the bladder wall defect is recommended to avoid urine extravasation.
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PMID:Intussusception ureterectomy. 269 95

Continent urinary reservoir has recently been paid much attention by urologists for its contribution to improvement in quality of life in patients who are in need of urinary diversion. We, herein, present some preliminary result in the operation of continent ileocecocolonic (ICC) or ileocecal reservoir which was performed on 13 patients. Since several improvements have been made on the operative procedures for ICC reservoir, the most recent techniques are described below: A 20-25 cm of cecocolonic and 12 cm of terminal ileal segment were isolated after a full length mesenteric incision. The cecocolonic segment was longitudinally split open in 15-20 cm on its antimesenteric border to be re-configuration later. The mesentery was detached for 8 cm in the terminal ileum which was randomly incised into its seromuscular layer. Following the intussusception of the terminal ileum into the cecal lumen, the nipple valve of the ileum was stabilized by three row-staples and two row-paired nonabsorbable sutures. The valve was re-enforced by nonabsorbable sutures and dacron mesh which were placed at the base of the intussusception. The ureter was implanted in the tenia of the colon with antireflux technique of the submucosa tunnel. The distal end of the split cecocolonic segment was, the, folded to and sutured with its proximal end, making a Heineke-Mikulicz type of re-configuration reservoir. A flush type of stoma was constructed, with dacron mesh placed around the ileum which was fixed to the rectus muscle and its anterior sheath.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Clinical studies on the continent ileocecocolonic reservoir]. 275 96

A new method for urinary diversion to the rectum was elaborated in animal experiments and currently has been used in 19 patients. Reflux of the rectal content to the colon and to the upper urinary tract is prevented by the fashioning of an intussusception valve at the rectosigmoid junction. The rectum is augmented by anastomosing an ileal patch to the anterior rectal wall. A transverse colostomy protects the construction for 6 to 8 weeks. Of the 19 patients 3 had local recurrence or metastasis within 6 months. Thus, 16 patients with a followup of 3 to 14 months are evaluable. All patients are continent during the daytime with an emptying frequency of 3 to 5 times and dry at night with a frequency of 0 to 2. In 3 patients partial sliding of the sigmoid intussusception valve occurred causing reflux of rectal contents to the sigmoid and to the right ureter in 1. Reflux to the upper urinary tract has not been revealed in any of the other patients. With 1 exception excretory urography has demonstrated either improvement or stabilization of the upper urinary tract post-operatively. The rectal capacity increased from 200 to 700 ml. after 6 months. With the reservoir full the mean basal pressure was 17 cm. water and the mean maximum pressure was 24 cm. water.
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PMID:Urinary diversion to the augmented and valved rectum: preliminary results with a novel surgical procedure. 319

When an ileal loop is used to replace the ureter or to create a urinary pouch, an adequate anti-reflux mechanism is essential. Intussusception of the ileal wall can be used but a proper technique must be chosen to prevent necrosis of the nipple. Good knowledge of the vascularization of the ileal wall is necessary. Leaving a 1-cm strip of mesenterium when stripping it from the ileal wall provides adequate circulation. Nipples of 3 cm or longer are enough to create an anti-reflux mechanism.
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PMID:Construction of ileal nipples as anti-reflux valve technique. 334 5

A case of inverted papilloma with intussusception of the ureter is reported. The patient is followed up 5 years after conservative treatment by partial resection of the ureter. No signs of urothelial tumor in the upper urinary tract or urinary bladder were revealed.
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PMID:Inverted papilloma with intussusception of the ureter. Case report. 361 7


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