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Neuromuscular Electrical Stimulation for Intermittent Claudication (NESIC): multicentre, randomized controlled trial

Lookup NU author(s): Professor Gerard Stansby

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© The Author(s) 2023. Published by Oxford University Press on behalf of BJS Society Ltd. METHODS: This was an open, multicentre, randomized controlled trial. Patients with intermittent claudication attending vascular surgery outpatient clinics were randomized (1:1) to receive either neuromuscular electrical stimulation (NMES) or not in addition to local standard care available at study centres (best medical therapy alone or plus supervised exercise therapy (SET)). The objective of this trial was to investigate the clinical efficacy of an NMES device in addition to local standard care in improving walking distances in patients with claudication. The primary outcome was change in absolute walking distance, measured by a standardized treadmill test at 3 months. Secondary outcomes included intermittent claudication (IC) distance, adherence, quality of life, and haemodynamic changes. RESULTS: Of 200 participants randomized, 160 were included in the primary analysis (intention to treat, Tobit regression model). The square root of absolute walking distance was analysed (due to a right-skewed distribution) and, although adjunctive NMES improved it at 3 months, no statistically significant effect was observed. SET as local standard care seemed to improve distance compared to best medical therapy at 3 months (3.29 units; 95 per cent c.i., 1.77 to 4.82; P < 0.001). Adjunctive NMES improved distance in mild claudication (2.88 units; 95 per cent c.i., 0.51 to 5.25; P = 0.02) compared to local standard care at 3 months. No serious adverse events relating to the device were reported. CONCLUSION: Supervised exercise therapy is effective and NMES may provide further benefit in mild IC.This trial was supported by a grant from the Efficacy and Mechanism Evaluation Program, a Medical Research Council and National Institute for Health and Care Research partnership. Trial registration: ISRCTN18242823.Patients with intermittent claudication experience pain in their legs during walking or exercise which ends with rest. This severely impairs physical activity and quality of life. Treatment for such patients typically involves best medical therapy, which includes exercise advice. This study aimed to determine whether a neuromuscular electrical stimulation device improved the walking distance of patients with intermittent claudication compared to local standard care available (which may include supervised exercise therapy) in a trial. Supervised exercise improved walking distances but there was no difference in those that received a device in this patient group.


Publication metadata

Author(s): Burgess L, Babber A, Shalhoub J, Smith S, de la Rosa CN, Fiorentino F, Braithwaite B, Chetter IC, Coulston J, Gohel MS, Hinchliffe R, Stansby G, Davies AH

Publication type: Article

Publication status: Published

Journal: British Journal of Surgery

Year: 2023

Volume: 110

Issue: 12

Pages: 1785-1792

Print publication date: 01/12/2023

Online publication date: 25/09/2023

Acceptance date: 25/08/2023

Date deposited: 28/11/2023

ISSN (electronic): 1365-2168

Publisher: Oxford University Press

URL: https://doi.org/10.1093/bjs/znad299

DOI: 10.1093/bjs/znad299

Data Access Statement: All data requests should be submitted to the corresponding author for consideration. Access to anonymized data may be granted following review. Data-access requests are handled on a case-by-case basis and will be reviewed by the corresponding author, Trial Management Group and sponsor (Imperial College London). A record of all access to data will be maintained by the Imperial College Archive team.

PubMed id: 37748866


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Funding

Funder referenceFunder name
15/180/68
Efficacy and Mechanism Evaluation (EME) Programme
MRC
NIHR

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