Kathleen L Grady1, David C Naftel2, Susan Myers2, Mary Amanda Dew3, Gerdi Weidner4, John A Spertus5, Katharine Idrissi6, Hochang B Lee7, Edwin C McGee8, James K Kirklin2. 1. Division of Cardiac Surgery, Department of Surgery, Northwestern University, Chicago, Illinois. Electronic address: kgrady@nmh.org. 2. Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama. 3. Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania. 4. Department of Biology, San Francisco State University, San Francisco, California. 5. Division of Cardiovascular Research, St. Luke's Mid America Heart Institute and Department of Biomedical and Health Informatics, University of Missouri, Kansas City, Missouri. 6. Department of Surgery, Columbia University, New York, New York. 7. Department of Psychiatry, Yale University, New Haven, Connecticut. 8. Department of Thoracic and Cardiovascular Surgery, Loyola University Medical Center, Maywood, Illinois.
Abstract
BACKGROUND: Destination therapy left ventricular assist devices (DT LVADs) are being implanted in older adults on an increasing basis. Older patients have a higher risk for mortality and morbidity post-LVAD, which may impact their health-related quality of life (HRQOL). We aimed to determine the change in HRQOL by age from before implant to 1 year after DT LVAD implant and identify factors associated with the change. METHODS: Data were collected from 1,470 continuous-flow DT LVAD patients at 108 institutions participating in INTERMACS from January 21, 2010 to March 31, 2012. Patients were divided into three cohorts: <60 years of age (n = 457); 60 to 69 years of age (n = 520); and ≥70 years of age (n = 493). HRQOL was measured using the generic EuroQol instrument (EQ-5D-3L). Data were collected pre-implant and 3, 6 and 12 months post-implant. Statistical analyses included descriptive statistics, Kaplan-Meier survival analyses and multivariable regression analyses. RESULTS: HRQOL improved in all patients. Generally, older patients reported better HRQOL than younger patients pre-implant (≥70 years: mean 40; 60 to 69 years: mean 33; and <60 years: mean 31; p < 0.0001) and 1 year post-implant (≥70 years: mean 77; 60 to 69 years: mean 72; <60 years: mean 70; p = 0.01) using the EQ-5D visual analog scale (VAS), with 0 = worst imaginable health state and 100 = best imaginable health state. The magnitude of improvement in EQ-5D scores from pre-implant to 1-year post-LVAD implant was similar in all age groups (≥70 years: mean change 33; 60 to 69 years: mean change 35; <60 years: mean change 35; p = 0.77). Factors associated with improvement in HRQOL from before to 1 year after implant were a lower VAS score pre-implant and fewer rehospitalizations post-implant (R(2) = 61.3%, p < 0.0001). CONCLUSIONS: Older patients reported better HRQOL than younger patients before and after LVAD implantation. The magnitude of improvement was similar for all age groups, with >70% of all patients showing clinically significant increases (>10 points on the VAS). Rehospitalization appears to reduce the magnitude of improvement.
BACKGROUND: Destination therapy left ventricular assist devices (DT LVADs) are being implanted in older adults on an increasing basis. Older patients have a higher risk for mortality and morbidity post-LVAD, which may impact their health-related quality of life (HRQOL). We aimed to determine the change in HRQOL by age from before implant to 1 year after DT LVAD implant and identify factors associated with the change. METHODS: Data were collected from 1,470 continuous-flow DT LVADpatients at 108 institutions participating in INTERMACS from January 21, 2010 to March 31, 2012. Patients were divided into three cohorts: <60 years of age (n = 457); 60 to 69 years of age (n = 520); and ≥70 years of age (n = 493). HRQOL was measured using the generic EuroQol instrument (EQ-5D-3L). Data were collected pre-implant and 3, 6 and 12 months post-implant. Statistical analyses included descriptive statistics, Kaplan-Meier survival analyses and multivariable regression analyses. RESULTS: HRQOL improved in all patients. Generally, older patients reported better HRQOL than younger patients pre-implant (≥70 years: mean 40; 60 to 69 years: mean 33; and <60 years: mean 31; p < 0.0001) and 1 year post-implant (≥70 years: mean 77; 60 to 69 years: mean 72; <60 years: mean 70; p = 0.01) using the EQ-5D visual analog scale (VAS), with 0 = worst imaginable health state and 100 = best imaginable health state. The magnitude of improvement in EQ-5D scores from pre-implant to 1-year post-LVAD implant was similar in all age groups (≥70 years: mean change 33; 60 to 69 years: mean change 35; <60 years: mean change 35; p = 0.77). Factors associated with improvement in HRQOL from before to 1 year after implant were a lower VAS score pre-implant and fewer rehospitalizations post-implant (R(2) = 61.3%, p < 0.0001). CONCLUSIONS: Older patients reported better HRQOL than younger patients before and after LVAD implantation. The magnitude of improvement was similar for all age groups, with >70% of all patients showing clinically significant increases (>10 points on the VAS). Rehospitalization appears to reduce the magnitude of improvement.
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