Preoperative respiratory strength training is feasible and safe and improves pulmonary physiologic capacity in individuals undergoing cardiovascular surgery

ObjectiveTo determine the safety, feasibility, and physiologic impact of a preoperative respiratory strength training (RST) program in individuals undergoing elective cardiac surgery (CS).MethodsTwenty-five adults an CS at academic hospital setting enrolled completed RST 5 days/week (50 repetitions, 50% load, ≥3 weeks) home via telehealth this open-label prospective cohort study. adherence, attendance, adverse events were tracked. Pre- post-RST outcomes maximum expiratory pressure (MEP), inspiratory (MIP), voluntary cough spirometry, patient-reported dyspnea collected. Descriptive analyses Wilcoxon signed rank-tests performed.ResultsTwo participants (9%) did not complete prescribed program. No significant RST-related occurred. Treatment adherence for all was 90%, attendance 99%. Of patients who (n = 23; 91%), treatment excellent (98% 100%, respectively). Significant increases primary observed: MEP mean change, +15.4 (95% confidence interval [CI], +3.4 to +27.3, P < .007); MIP +14.9 CI, +9.4 +20.4, .0001). statistically differences or perceived observed (P > .05).ConclusionsThese preliminary data demonstrate that is safe feasible can improve short-term capacity (MEP MIP) patients. Future research warranted validate current findings larger whether improves postoperative extubation outcomes, airway clearance capacity, aspiration following surgery.