Structure and Function of the Bladder Neck (Paperback, Softcover reprint of the original 1st ed. 2001)

The alternation between urine retention and discharge several times daily from a nappy to the cessation ofall vital functions only becomes the subject baby's first wet of greater attention if the harmony of the structure and function of the bladder is disturbed. Functional disturbances of the lower urinary tract are not only of great socio-economic importance, but are also a considerable personal burden for the patient. Hence urinary incontinence is rightly classified as a severelydisabling illness (Hauri 1985). Opinions still differ regarding the morphological basis ofurinary continence.The Terminologia Anatomica (1998) defines a musculus sphincter urethrae internus (in- ternal urethral sphincter) and a musculus sphincter urethrae externus (external ure- thral sphincter),which in the older nomenclature were known as musculus sphincter vesicae and musculussphincterurethrae,respectively.The internal urethral sphincter isascribed apurelyinvoluntaryandthe externalurethralsphincterapurelyvoluntary innervation. The significance of the musculature of the pelvic floor for maintaining urinarycontinence has notyetbeen ascertained. Duringnumerous urologicaloperations (forinstancetransurethralresectionofthe prostate and bladder neck incisions), the only involuntarily innervated sphincter at the collum vesicae,the internalurethralsphincter,is partiallyorcompletelydestroyed (Fig. 27C,D).All the patients remain continent as long as the externalurethral sphinc- ter remains intact.Howcan apurelyvoluntarilyinnervated sphincterlikethe external urethral sphincter ensureconstant continence in such cases? Improving the continence rate after radical surgery is a key topic of urological research. The incontinence rate after radical prostatectomy is still between 8.1% (third-degree incontinence) and41.4% (first- to second-degree incontinence; Rudyet al. 1984; Igel et a1.1987; Schroderand Ouden 1992).

General

Imprint:	Springer-Verlag
Country of origin:	Germany
Series:	Advances in Anatomy, Embryology and Cell Biology, 159
Release date:	February 2001
First published:	2001
Authors:	W. Dorschner • J.U. Stolzenburg • J. Neuhaus
Dimensions:	235 x 155 x 7mm (L x W x T)
Format:	Paperback
Pages:	114
Edition:	Softcover reprint of the original 1st ed. 2001
ISBN-13:	978-3-540-67998-1
Categories:	Books > Medicine > Clinical & internal medicine > Urology & urogenital medicine Books > Medicine > Pre-clinical medicine: basic sciences > Anatomy > General Books > Medicine > Clinical & internal medicine > Gynaecology & obstetrics > General
LSN:	3-540-67998-7
Barcode:	9783540679981

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