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Patterns of tined lead migration in sacral nerve modulation
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- Ezra, Emmanuel (author)
- Uppsala universitet,Gastrointestinalkirurgi
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- Siilin, Helene (author)
- Uppsala universitet,Gastrointestinalkirurgi
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- Gulobovic, Milan (author)
- Uppsala universitet,Radiologi
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- (creator_code:org_t)
- 2020-03-06
- 2020
- English.
- In: International Journal of Colorectal Disease. - : SPRINGER. - 0179-1958 .- 1432-1262. ; 35:6, s. 1163-1166
- Journal article (peer-reviewed)
Abstract
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- Aim Lead migration is a common cause of loss of efficacy in sacral nerve modulation. Our aim was to systematically study the migration pattern of tined leads in sacral nerve modulation. Our hypothesis was that tined leads may promote forward migration because of their configuration. Method Consecutive patients treated with sacral nerve modulation with a tined lead electrode, who had experienced loss of efficacy and had radiographs both at baseline and after loss of efficacy between 2005 and 2016 were eligible for inclusion. Results Twenty-five patients out of 70 with loss of efficacy were studied. Lead migration was measured as percent electrode movement in relation to sacral cortex at lateral projection. All had some degree of lead migration, ranging from 35% backward to 74% forward migration. Sixteen (64%) had forward migration while nine (36%) had backward migration. In seven patients (28%), loss of efficacy was associated with an episode of perceived mechanical strain on the electrode. Fifty percent (4/8) who associated their loss of efficacy with an adverse event had forward migration of the electrode. Conclusions Forward lead migration with concomitant loss of efficacy seems to be a common event in patients with tined leads, hence supporting our hypothesis. The retrospective design and that some of the patients with loss of efficacy could not be included because of incomplete data, which is a limitation to the study. Further studies are needed to confirm to what extent the direction and magnitude of the migration relate to loss of efficacy.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Keyword
- Tined lead
- Migration
- Sacral nerve modulation
- Fecal incontinence
Publication and Content Type
- ref (subject category)
- art (subject category)
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