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  • Title: Multimodal Prehabilitation for Peripheral Arterial Disease Patients with Intermittent Claudication-A Pilot Randomized Controlled Trial.
    Author: Coca-Martinez M, Girsowicz E, Doonan RJ, Obrand DI, Bayne JP, Steinmetz OK, Mackenzie KS, Carli F, Martinez-Palli G, Gill HL.
    Journal: Ann Vasc Surg; 2024 Oct; 107():2-12. PubMed ID: 37949167.
    Abstract:
    BACKGROUND: To establish the feasibility and safety of multimodal prehabilitation (MP), and to obtain pilot data on the change in quality of life, functional walking capacity, and the need for surgery for a full-scale trial. METHODS: Pilot randomized controlled trial that included patients older than 50 years old suffering from moderate to severe intermittent claudication and who were candidates for endovascular revascularization (ER). Participants were excluded if they presented with ischemic rest pain, gangrene or ulceration of the index leg, significant lesions in the iliac vessels, planned surgical bypass, comorbidities in which exercise was contraindicated or if they were unable to speak English or French. Participants were randomized in a 1:1 ratio to 12 weeks of MP or institutional standard of care (unsupervised walking advice). MP consisted of i)1 weekly supervised exercise session; ii) home-based exercise prescription; iii) nutritional counseling and supplementation; iv) smoking cessation therapy; and v) psychosocial support. Feasibility and safety were measured with recruitment and retention rates, as well as the occurrence of any adverse events. In addition, barriers to attend supervised sessions and compliance to each component were assessed. Change in functional walking capacity, health-related quality of life, and the rates of patients deciding not to undergo ER were collected and analyzed throughout the follow-up period of 12 months. RESULTS: Of the 37 patients referred for eligibility, 27 (73%) accepted to participate in the trial and were randomized. Of the 27 patients included, 24 completed the 12-week program. Adherence to each prehabilitation component was 83% interquartile range [72,93] for supervised exercise, 90% [83,96] for home-based exercise and 69% [45,93] for nutritional sessions. Fifty percent of patients were referred for and underwent psychosocial intervention and 40% of the active smokers enrolled in the smoking cessation program. No adverse events were observed during the program. The 2 main barriers for not fully adhering to the intervention were excessive pain while performing the exercises and the difficulty to keep up with the prescribed exercises. A statistically significant mean change (standard deviation (SD)) was seen in the MP group versus standard of care for functional capacity, mean (SD) 6 Min Walk Test 60 (74) vs. -11 (40) meters P < 0.05, and quality of life mean (SD) VascuQol 1.15 (0.54) vs. -0.3 (1.09) points P < 0.05. There was no statistically significant difference between groups in the rates of patients deciding to undergo ER during the 1-year follow-up period. CONCLUSIONS: The results of this pilot trial demonstrate that MP is safe and feasible. A 12-week MP program seems to improve quality of life and functional walking capacity to a greater extent than unsupervised walking advice. There is a need for a large-scale trial to investigate the effectiveness of MP at improving quality of life and assessing its impact on the rates of patients deciding not to undergo or delay ER. The long-term functional and quality of life outcomes of the patients deciding to undergo ER after prehabilitation also need to be assessed.
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