Abstract
To assess whether the sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin improves cognitive impairment in frail older adults with diabetes and heart failure with preserved ejection fraction (HFpEF). We designed a prospective study to assess cognitive and physical function in consecutive frail older adults with diabetes and HFpEF, comparing the effects of empagliflozin, metformin, and insulin. A total of 162 frail older adults with HFpEF and diabetes successfully completed the study. Montreal Cognitive Assessment scores at baseline and after 1 month were 19.80 ± 3.77 vs. 22.25 ± 3.27 (P < 0.001) in the empagliflozin group, 19.95 ± 3.81 vs. 20.71 ± 3.56 (P = 0.26) in the metformin group, and 19.00 ± 3.71 vs. 19.1 ± 3.56 (P = 0.81) in the insulin group. A multivariable regression analysis confirmed the beneficial effects of empagliflozin. Additionally, we observed a marked amelioration of physical impairment, assessed by the 5-m gait speed test, in the empagliflozin and metformin groups but not in the insulin group. This study is the first to show significant beneficial effects of the SGLT2 inhibitor empagliflozin on cognitive and physical impairment in frail older adults with diabetes and HFpEF.
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