PMID- 20950415 OWN - NLM STAT- MEDLINE DCOM- 20110203 LR - 20221207 IS - 1475-2840 (Electronic) IS - 1475-2840 (Linking) VI - 9 DP - 2010 Oct 15 TI - Insulin resistance and glycemic abnormalities are associated with deterioration of left ventricular diastolic function: a cross-sectional study. PG - 63 LID - 10.1186/1475-2840-9-63 [doi] AB - BACKGROUND: Left ventricular diastolic dysfunction (LVDD) is considered a precursor of diabetic cardiomyopathy, while insulin resistance (IR) is a precursor of type 2 diabetes mellitus (T2DM) and independently predicts heart failure (HF). We assessed whether IR and abnormalities of the glucose metabolism are related to LVDD. METHODS: We included 208 patients with normal ejection fraction, 57 (27%) of whom had T2DM before inclusion. In subjects without T2DM, an oral glucose tolerance test (oGTT) was performed. IR was assessed using the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR). The lower limit of the top quartile of the HOMA-IR distribution (3.217) was chosen as threshold for IR. LVDD was verified according to current guidelines. RESULTS: IR was diagnosed in 38 (18%) patients without a history of diabetes. The prevalence of LVDD was 92% in subjects with IR vs. 72% in patients without IR (n = 113), respectively (p = 0.013). In the IR group, the early diastolic mitral inflow velocity (E) in relation to the early diastolic tissue Doppler velocity (averaged from the septal and lateral mitral annulus, E'av) ratio (E/E'av) was significantly higher compared to those without IR (9.8 [8.3-11.5] vs. 8.1 [6.6-11.0], p = 0.011). This finding remains significant when patients with IR and concomitant T2DM based on oGTT results were excluded (E/E'av ratio 9.8 [8.2-11.1)] in IR vs. 7.9 [6.5-10.5] in those without both IR and T2DM, p = 0.014). There were significant differences among patients with and without LVDD regarding the HOMA-IR (1.71 [1.04-3.88] vs. 1.09 [0.43-2.2], p = 0.003). The HOMA-IR was independently associated with LVDD on multivariate logistic regression analysis, a 1-unit increase in HOMA-IR value was associated with an odds ratio for prevalent LVDD of 2.1 (95% CI 1.3-3.1, p = 0.001). Furthermore, the E/E'av ratio increases along the glucose metabolism status from normal glucose metabolism (7.6 [6.2-10.1]) to impaired glucose tolerance (8.8 [7.4-11.0]) and T2DM (10.5 [8.1-13.2]), respectively (p < 0.001). CONCLUSIONS: Insulin resistance is independently associated with LVDD in subjects without overt T2DM. Patients with IR and glucose metabolism disorders might represent a target population to prevent the development of HF. Screening programs for glucose metabolism disturbances should address the assessment of diastolic function and probably IR. FAU - Dinh, Wilfried AU - Dinh W AD - Institute for Heart and Circulation Research, University Witten/Herdecke, Germany. wilfried.dinh@helios-kliniken.de FAU - Lankisch, Mark AU - Lankisch M FAU - Nickl, Werner AU - Nickl W FAU - Scheyer, Daniel AU - Scheyer D FAU - Scheffold, Thomas AU - Scheffold T FAU - Kramer, Frank AU - Kramer F FAU - Krahn, Thomas AU - Krahn T FAU - Klein, Rolf M AU - Klein RM FAU - Barroso, Michael Coll AU - Barroso MC FAU - Futh, Reiner AU - Futh R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101015 PL - England TA - Cardiovasc Diabetol JT - Cardiovascular diabetology JID - 101147637 RN - 0 (Biomarkers) RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (Insulin) RN - 0 (hemoglobin A1c protein, human) SB - IM MH - Aged MH - Biomarkers/blood MH - Blood Glucose/*analysis MH - Chi-Square Distribution MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/blood/*epidemiology/physiopathology MH - Diastole MH - Echocardiography, Doppler MH - Female MH - Germany/epidemiology MH - Glucose Tolerance Test MH - Glycated Hemoglobin/analysis MH - Humans MH - Insulin/blood MH - *Insulin Resistance MH - Logistic Models MH - Male MH - Middle Aged MH - Prevalence MH - Risk Assessment MH - Risk Factors MH - Stroke Volume MH - Ventricular Dysfunction, Left/diagnostic imaging/*epidemiology/physiopathology MH - *Ventricular Function, Left PMC - PMC2964598 EDAT- 2010/10/19 06:00 MHDA- 2011/02/04 06:00 PMCR- 2010/10/15 CRDT- 2010/10/19 06:00 PHST- 2010/09/06 00:00 [received] PHST- 2010/10/15 00:00 [accepted] PHST- 2010/10/19 06:00 [entrez] PHST- 2010/10/19 06:00 [pubmed] PHST- 2011/02/04 06:00 [medline] PHST- 2010/10/15 00:00 [pmc-release] AID - 1475-2840-9-63 [pii] AID - 10.1186/1475-2840-9-63 [doi] PST - epublish SO - Cardiovasc Diabetol. 2010 Oct 15;9:63. doi: 10.1186/1475-2840-9-63.