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1.
J Urol ; 160(4): 1274-7, 1998 Oct.
Article in English | MEDLINE | ID: mdl-9751334

ABSTRACT

PURPOSE: We demonstrate how the combined use of detubularized and remodeled intestine with intact cecum in the construction of an orthotopic colonic neobladder determines different functioning. MATERIALS AND METHODS: Since February 1993, 11 men who underwent radical cystectomy due to invasive bladder carcinoma have received a new bladder substitute consisting of an upper component of ascending colon and a detubularized and remodeled right half of transverse colon, and a lower component with intact cecum. During postoperative years 1 and 4 all patients were evaluated with urodynamics and cystography. RESULTS: The detubularized upper component of the neobladder acts as a large capacity, low pressure filling reservoir, while the intact cecum with its haustral contractions (inverted milking action) contributes as an additional continence mechanism. The mass contractions (milking action) with abdominal wall tension actively collaborate to evacuate the reservoir completely. CONCLUSIONS: This new structural concept of a neobladder constructed from detubularized and intact intestine has a different functional behavior than neobladders described in literature. This neobladder enables complete evacuation and total continence in the immediate postoperative period.


Subject(s)
Cecum/transplantation , Colon/transplantation , Urinary Bladder Neoplasms/surgery , Urinary Bladder/surgery , Follow-Up Studies , Humans , Male , Urinary Bladder/physiology , Urodynamics
2.
Rev. argent. urol. (1990) ; 62(3): 89-100, sept. 1997. ilus, tab
Article in Spanish | LILACS | ID: lil-206025

ABSTRACT

A partir de 1993, en el servicio de urología del Hospital "Dr. José Penna" de Bahia Blanca se introdujo una serie de modificaciones técnicas a la derivación urinaria colónico-continente (Florida Pouch). La más significativa consistió en la no "destabulación" del ciego para poder utilizarlo como neovejiga ortotópica. Este nuevo sustituto vesical tierne en su estructura dos componentes: uno superior, contruido con intestino grueso ascendente y mitad derecha del transverso, destubilizado y reconfigurado, y otro inferior, con ciego indemne. En siete pacientes, en quienes se efectuó cistectomía radical, se utilizó este nuevo procedimiento como reemplazo vesical. Todos ellos lograron continencia completa diurna y nocturna desde el primer día en que se retiró el catéter uretral. Tres tienen un seguimiento de más de tres años. En el presente trabajo se describe la técnica quirúrgica de esta nueva derivación y su funcionamiento, distinto de los dem,ás sustitutos descriptos en la literatura, que permite una evacuación completa sin maniobra de Credé, con óptima continencia


Subject(s)
Humans , Male , Urinary Diversion/methods , Surgical Procedures, Operative , Urinary Bladder/surgery , Cystectomy
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