Journal
COLORECTAL DISEASE
Volume 21, Issue 11, Pages 1240-1248Publisher
WILEY
DOI: 10.1111/codi.14690
Keywords
anterior resection; bowel dysfunction; faecal incontinence; sacral nerve stimulation; sacral neuromodulation
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Aim Low anterior resection syndrome (LARS) can affect up to 70% of all patients with rectal cancer. In the last two decades, sacral nerve stimulation (SNS) has emerged as an effective treatment for faecal incontinence. There is some encouraging literature on the use of SNS in patients with LARS. The purpose of this review is to provide an up to date review on the utility of SNS on LARS. Method A literature search was conducted using the MEDLINE, Embase and PubMed databases (January 1981-March 2019). Studies identified were appraised with standard selection criteria. Data points were extracted, and meta-analysis was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Results Ten studies met the inclusion criteria and were included in this study. All studies used the Cleveland Clinic Incontinence Score (CCIS), whereas the low anterior resection syndrome score (LARS score) was used in three studies. Overall median improvement in the scoring system was 67.0% (range 35.5%-88.2%) after SNS implantation. There was a significant reduction in CCIS after SNS implantation (mean difference 11.23, 95% confidence interval 9.38-13.07, Z = 11.90, P < 0.00001). The LARS score was also significantly reduced after using SNS in patients with LARS (mean difference 17.87, 95% confidence interval 10.15-25.59, Z = 4.54, P < 0.00001). Conclusion Use of SNS may provide symptomatic benefits for patients with LARS refractory to medical therapy. However, the current level of evidence remains limited. A large multicentre study of SNS for LARS using the validated LARS score is warranted. In addition, the cost-effectiveness of SNS for patients with LARS needs further exploration.
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