Impact of Intervention Mode Based on Cardiopulmonary Exercise Test on the Rehabilitation of Patients After Left Ventricular Assistant Device Implantation
MA Ke
Abstract：Objective To explore the effect of intervention mode based on cardiopulmonary exercise testing(CPET)on the rehabilitation of patients after left ventricular assistant device(LVAD)implantation.Methods Fifteen patients with LVAD implantation who were admitted to Fuwai Central China Cardiovascular Hospital from October 2021 to September 2024 were selected.All patients were treated with intervention model based on CPET for three months.The CPET indicators of the patients before the intervention and 3 months after the intervention were compared,including the primary indicator peak oxygen uptake(peak VO2)and the secondary indicator anaerobic subthreshold heart rate,cardiac output(CO),stroke volume,cardiac index,and the minute ventilation/carbon dioxide production slope(VE/VCO2 slpoe).The 6 min walking test distance,cardiac function,and quality of life of patients[Minnesota living with heart failure questionnaire(MLHFQ)score]were compared before and after intervention.Results Compared with before intervention,peak VO2,CO,stroke output and cardiac index of patients increased after 3 months of intervention,heart rate under anaerobic threshold,VE/VCO2 slpoe decreased,and 6 min walking test distance increased,with statistically significant differences(P＜0.05).After 3 months of intervention,the patient's left ventricular end systolic dimension(LVESD)and MLHFQ scores were lower than before intervention,and left ventricular ejection fraction(LVEF)was higher than before intervention,with statistical significant differences(P＜0.05).There was no statistical significant difference in left ventricular end diastolic dimension(LVEDD)between patients before and after 3 months of intervention(P＞0.05).Conclusion The intervention model based on CPET is helpful in improving the cardiopulmonary function of LVAD patients after implantation,enhancing their physical endurance and function,and improving their quality of life.
Keywords：left ventricular assistant devicerecoverycardiopulmonary exercise testingheart function
Publication Date：2025-12-13
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 4287-4291 )