Abstract
A technique is demonstrated to evaluate the functional relevance of the sacral spinal nerves regarding anal sphincter function. Sacral spinal nerves S2, S3, S4 can be reached selectively for electrical stimulation by a dorsal approach through the sacral foramina. Electrical stimulation of S3 and S4 results in visible contraction of the different striated muscular anal sphincter components and in an increase of anal canal closure pressure. These effects differ among individuals. Thus, the functional relevance of each single sacral spinal nerve on the striated muscular anal sphincter can be tested specifically.
Zusammenfassung
Dargestellt wird eine Technik der direkten Elektrostimulation der sakralen Spinalnerven. Sie dient dazu, die anatomische Integritdt dieser Nerven und ihre funktionelle Relevanz hinsichtlich der anorektalen Kontinenzfunktion zu prüfen. Die sakralen Spinalnerven S2, S3 and S4 sind über einen dorsalen Zugang durch die sakralen Foramina direkt and selektiv stimulierbar. Die direkte Elektrostimulation von S3 and S4 resultiert in Kontraktion der quergestreift muskuldren Sphinkteranteile and in einem individuell unterschiedlichen Anstieg des Analkanalverschlußdrucks. Die Methode ermöglicht im Rahmen der anorektalen Funktionsdiagnostik die spezifische Beurteilung der funktionellen Relevanz einzelner sakraler Spinalnerven.
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Matzel, K.E., Stadelmaier, U. & Gall, F.P. Direkte elektrostimulation der sakralen Spinalnerven im Rahmen der anorektalen Funktionsdiagnostik. Langenbecks Arch Chir 380, 184–188 (1995). https://doi.org/10.1007/BF00207727
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DOI: https://doi.org/10.1007/BF00207727