PMID- 37118820 OWN - NLM STAT- MEDLINE DCOM- 20230501 LR - 20230522 IS - 1475-2840 (Electronic) IS - 1475-2840 (Linking) VI - 22 IP - 1 DP - 2023 Apr 28 TI - Association of complication of type 2 diabetes mellitus with hemodynamics and exercise capacity in patients with heart failure with preserved ejection fraction: a case-control study in individuals aged 65-80 years. PG - 97 LID - 10.1186/s12933-023-01835-2 [doi] LID - 97 AB - BACKGROUND: Type 2 diabetes mellitus (T2DM) is a frequently observed complication in patients with heart failure with preserved ejection fraction (HFpEF). Although a characteristic finding in such patients is a decrease in objective exercise capacity represented by peak oxygen uptake (peakVO(2)), exercise capacity and its predictors in HFpEF with T2DM remain not clearly understood. This case-control study aimed to investigate the association between exercise capacity and hemodynamics indicators and T2DM comorbidity in patients with HFpEF aged 65-80 years. METHODS: Ninety-nine stable outpatients with HFpEF and 50 age-and-sex-matched controls were enrolled. Patients with HFpEF were classified as HFpEF with T2DM (n = 51, median age, 76 years) or without T2DM (n = 48, median age, 76 years). The peakVO(2) and ventilatory equivalent versus carbon dioxide output slope (VE vs VCO(2) slope) were measured by cardiopulmonary exercise testing. The peak heart rate (HR) and peak stroke volume index (SI) were measured using impedance cardiography, and the estimated arteriovenous oxygen difference (peak a-vO(2) diff) was calculated with Fick's equation. The obtained data were compared among the three groups using analysis of covariance adjusted for the beta-blocker medication, presence or absence of sarcopenia, and hemoglobin levels in order to determine the T2DM effects on exercise capacity and hemodynamics in patients with HFpEF. RESULTS: In HFpEF with T2DM compared with HFpEF without T2DM and the controls, the prevalence of sarcopenia, chronotropic incompetence, and anemia were significantly higher (p < 0.001). The peakVO(2) (Controls 23.5 vs. without T2DM 15.1 vs. with T2DM 11.6 mL/min/kg), peak HR (Controls 164 vs. without T2DM 132 vs. with T2DM 120 bpm/min), peak a-vO(2) (Controls 13.1 vs without T2DM 10.6 vs with T2DM 8.9 mL/100 mL), and VE vs VCO(2) slope (Controls 33.2 vs without T2DM 35.0 vs with T2DM 38.2) were significantly worsened in patients with HFpEF with T2DM (median, p < 0.001). There was no significant difference in peak SI among the three groups. CONCLUSIONS: Our results suggested that comorbid T2DM in patients with HFpEF may reduce exercise capacity, HR response, peripheral oxygen extraction, and ventilation efficiency. These results may help identify cardiovascular phenotypes of HFpEF complicated with T2DM and intervention targets for improving exercise intolerance. CI - (c) 2023. The Author(s). FAU - Sugita, Yousuke AU - Sugita Y AD - Faculty of Health Sciences, Tsukuba University of Technology, 4-12-7, Kasuga, Tsukuba, Ibaraki, 305-8521, Japan. y.sugita@cc.k.tsukuba-tech.ac.jp. FAU - Ito, Katsuhiko AU - Ito K AD - Department of Rehabilitation, National Hospital Organization Matsumoto National Hospital, Matsumoto, Japan. FAU - Yoshioka, Yui AU - Yoshioka Y AD - Department of Rehabilitation, Musashino General Hospital, Kawagoe, Japan. FAU - Sakai, Satoshi AU - Sakai S AD - Faculty of Health Sciences, Tsukuba University of Technology, 4-12-7, Kasuga, Tsukuba, Ibaraki, 305-8521, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230428 PL - England TA - Cardiovasc Diabetol JT - Cardiovascular diabetology JID - 101147637 RN - S88TT14065 (Oxygen) RN - Diabetes Mellitus, Noninsulin-Dependent, 1 RN - Diabetes Mellitus, Noninsulin-Dependent, 2 SB - IM MH - Humans MH - *Heart Failure/diagnosis/epidemiology MH - Stroke Volume/physiology MH - Case-Control Studies MH - Exercise Tolerance/physiology MH - *Diabetes Mellitus, Type 2/diagnosis/epidemiology MH - *Sarcopenia MH - Hemodynamics MH - Exercise Test/methods MH - Oxygen PMC - PMC10148403 OTO - NOTNLM OT - Anemia OT - Echocardiography OT - Heart failure with preserved ejection fraction OT - Peak arteriovenous oxygen difference OT - Peak heart rate OT - Peak oxygen uptake OT - Peak stroke volume OT - Sarcopenia OT - Type 2 diabetes mellitus OT - Ventilatory equivalent versus carbon dioxide output slope COIS- The authors declare that they have no competing interests. EDAT- 2023/04/29 19:42 MHDA- 2023/05/01 06:42 PMCR- 2023/04/28 CRDT- 2023/04/29 00:02 PHST- 2023/02/01 00:00 [received] PHST- 2023/04/15 00:00 [accepted] PHST- 2023/05/01 06:42 [medline] PHST- 2023/04/29 19:42 [pubmed] PHST- 2023/04/29 00:02 [entrez] PHST- 2023/04/28 00:00 [pmc-release] AID - 10.1186/s12933-023-01835-2 [pii] AID - 1835 [pii] AID - 10.1186/s12933-023-01835-2 [doi] PST - epublish SO - Cardiovasc Diabetol. 2023 Apr 28;22(1):97. doi: 10.1186/s12933-023-01835-2.