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ANDREASEN, CHRISTINE R.; ANDERSEN, ANDREAS; HAGELQVIST, PER G.; MAYTHAM, KAISAR; SENGELØV, MORTEN; KNOP, FILIP K.; OLSEN, FLEMMING J.; VILSBØLL, TINA
Diabetes (New York, N.Y.), 06/2023, Letnik: 72, Številka: Supplement_1Journal Article
Mechanical dispersion (MD) describes heterogeneity in ventricular contraction patterns, and myocardial work (MW) indices quantify ventricular performance. Investigating the myocardial and functional response to acute hypoglycemia and hyperglycemia may aid in identifying putative mechanisms linking glycemia and cardiovascular disease (CVD). From echocardiography performed during euglycemic, hyperglycemic and hypoglycemic clamps, we explored the relationship between glycemia and MD and MW indices in individuals with type 1 diabetes, type 2 diabetes and without diabetes. MD was measured by speckle-tracking echocardiography, and MW measures were derived from pressure-strain loop analyses. We analyzed data (mean±SD) from 84 individuals: 20 young individuals with type 1 diabetes (age: 30±8 years); 24 middle-aged individuals with type 1 diabetes (age: 53±12 years); 21 older individuals with type 2 diabetes (63±7 years), and 21 controls (62±8 years). Results for MD and MW indices are illustrated in Figure 1. In conclusion, acute hyperglycemia leads to an energy-effective myocardium with homogeneous left ventricular contractions. Hypoglycemia increases constructive myocardial work, followed by a less energy-efficient myocardium and more heterogeneous left ventricular contractions, perhaps alluding to a possible link between hypoglycemia and CVD. Disclosure C.R.Andreasen: None. A.Andersen: None. P.G.Hagelqvist: None. K.Maytham: None. M.Sengeløv: None. F.K.Knop: Advisory Panel; AstraZeneca, Boehringer Ingelheim International GmbH, Eli Lilly and Company, Novo Nordisk, Sanofi, Consultant; AstraZeneca, Boehringer Ingelheim International GmbH, Eli Lilly and Company, Novo Nordisk, Sanofi, Research Support; Novo Nordisk, Zealand Pharma A/S, Speaker's Bureau; AstraZeneca, Boehringer Ingelheim International GmbH, Eli Lilly and Company, Novo Nordisk, Sanofi, Lundbeck. F.J.Olsen: None. T.Vilsbøll: Consultant; AstraZeneca, Boehringer Ingelheim Inc., Gilead Sciences, Inc., Eli Lilly and Company, Mundipharma, Merck & Co., Inc., Novo Nordisk A/S, Sanofi, Sun Pharmaceutical Industries Ltd., Bristol-Myers Squibb Company. Funding Danish Diabetes Academy (17SA0031406); Novo Nordisk Foundation (16230)
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