Mildly decreased renal function and its relation to left ventricular geometry change

Background: It is believed that left ventricular (LV) geometry change contributes to the elevated cardiovascular risk in patients with chronic kidney disease. However, data are less available on the association between LV geometry change and mildly decreased renal function within estimated glomerular filtration rate (eGFR) from 60 to 89 (mL/min/1.73m²). Methods and Results: In a cohort of 47,730 Koreans undergoing echocardiography as part of a health check-up, we evaluated the association of LV hypertrophy (LVH) and abnormal relative wall thickness (RWT) with 4 levels and 3 levels of eGFR in men (≥90, 89.99–80, 79.99–70, 69.99–60) and women (≥90, 89.99–80, 79.99–60), respectively. Multivariate logistic regression analysis was used to calculate the odds ratios (OR) and 95% confidence intervals (CI) for LVH and abnormal RWT, adjusting for conventional cardiovascular risk factors (adjusted OR [95% CI]). In the fully adjustment model, men did not show a significant association between LVH and levels of eGFR between 60 and 89. However, abnormal RWT was significantly associated with the levels of eGFR between 60 and 89. Women did not show a significant association of LVH and abnormal RWT with levels of eGFR between 60 and 89. Conclusions: Men with mildly decreased renal function (eGFR between 60 and 89mL/min/1.73m²) had increased probability of LV geometry change represented by abnormal RWT.