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Modifying risks in ventral hernia patients with prehabilitation: a randomized controlled trial
Liang MK, Bernardi K, Holihan JL, Cherla DV, Escamilla R, Lew DF, Berger DH, Ko TC, Kao LS
Annals of Surgery 2018 Oct;268(4):674-680
clinical trial
8/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: The aim of this study was to determine whether preoperative nutritional counseling and exercise (prehabilitation) in obese patients with ventral hernia repair (VHR) results in more hernia-free and complication-free patients. BACKGROUND: Obesity and poor fitness are associated with complications following VHR. These issues are prevalent in low socioeconomic status patients. METHODS: This was a blinded, randomized controlled trial at a safety-net academic institution. Obese patients (BMI 30 to 40) seeking VHR were randomized to prehabilitation versus standard counseling. VHR was performed once preoperative requirements were met: 7% total body weight loss or 6 months of counseling and no weight gain. Primary outcome was the proportion of hernia-free and complication-free patients. Secondary outcomes were wound complications at 1 month postoperative and weight loss measures. Univariate analysis was performed. RESULTS: Among 118 randomized patients, prehabilitation was associated with a higher percentage of patients who lost weight and achieved weight loss goals; however, prehabilitation was also associated with a higher dropout rate and need for emergent repair. VHR was performed in 44 prehabilitation and 34 standard counseling patients. There was a trend toward less wound complication in prehabilitation patients (6.8% versus 17.6%, p = 0.167). The prehabilitation group was more likely to be hernia-free and complication-free (69.5% versus 47.5%, p = 0.015). CONCLUSIONS: It is feasible to implement a prehabilitation program for obese patients at a safety-net hospital. Prehabilitation patients have a higher likelihood of being hernia-free and complication-free postoperatively. Although further trials and long-term outcomes are needed, prehabilitation may benefit obese surgical patients, but there may be increased risks of dropout and emergent repair. CLINICAL TRIAL REGISTRATION: This trial was registered with ClinicalTrials.gov (NCT02365194).
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