Saori Majima1, Muhei Tanaka1, Hiroshi Okada2, Takafumi Senmaru1, Mai Asano1, Masahiro Yamazaki1, Hitoshi Toda2, Yohei Oda1, Goji Hasegawa3, Naoto Nakamura1, Michiaki Fukui4. 1. Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Japan. 2. Department of Internal Medicine, Oike Clinic, Kyoto, Japan. 3. Division of Metabolism, Nephrology and Rheumatology, Japanese Red Cross Kyoto Daini Hospital, Japan. 4. Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Japan. Electronic address: sayarinapm@hotmail.com.
Abstract
OBJECTIVE: Previous studies have implicated PR interval (iPR) and QRS duration (dQRS) obtained by electrocardiography in independent predictors of cardiovascular disease, which often precedes renal dysfunction. The aim of this study was to examine whether iPR or dQRS could be a predictor of renal function decline in a community-based cohort. METHODS: We enrolled 1149 healthy subjects, and retrospectively evaluated the relationships between iPR or dQRS and renal function decline, observation period of which was 3 years, and assessed whether iPR or dQRS could predict renal function decline. RESULTS: The iPR (r=-0.102, p=0.0006) or dQRS (r=-0.097, p=0.0010) was negatively associated with a rate of decline in estimated glomerular filtration rate (eGFR). Multiple regression analyses revealed that iPR (β=-0.095, p=0.0023) or dQRS (β=-0.069, p=0.0351) was an independent determinant of the rate of decline in eGFR after adjustment for covariates. Logistic regression analyses demonstrated that the longest iPR (odds ratios (OR), 2.03; 95% confidence intervals (CI), 1.49 to 2.76; p<0.0001) or dQRS (OR, 1.62; 95% CI, 1.16 to 2.25; p=0.0043) tertile showed an increased OR for prevalence of the rate of decline in eGFR≤1 ml/min/1.73 m2/year compared to the shortest iPR or dQRS tertile after adjustment for covariates. CONCLUSION: The iPR and dQRS could be independent predictors of renal function decline in healthy subjects.
OBJECTIVE: Previous studies have implicated PR interval (iPR) and QRS duration (dQRS) obtained by electrocardiography in independent predictors of cardiovascular disease, which often precedes renal dysfunction. The aim of this study was to examine whether iPR or dQRS could be a predictor of renal function decline in a community-based cohort. METHODS: We enrolled 1149 healthy subjects, and retrospectively evaluated the relationships between iPR or dQRS and renal function decline, observation period of which was 3 years, and assessed whether iPR or dQRS could predict renal function decline. RESULTS: The iPR (r=-0.102, p=0.0006) or dQRS (r=-0.097, p=0.0010) was negatively associated with a rate of decline in estimated glomerular filtration rate (eGFR). Multiple regression analyses revealed that iPR (β=-0.095, p=0.0023) or dQRS (β=-0.069, p=0.0351) was an independent determinant of the rate of decline in eGFR after adjustment for covariates. Logistic regression analyses demonstrated that the longest iPR (odds ratios (OR), 2.03; 95% confidence intervals (CI), 1.49 to 2.76; p<0.0001) or dQRS (OR, 1.62; 95% CI, 1.16 to 2.25; p=0.0043) tertile showed an increased OR for prevalence of the rate of decline in eGFR≤1 ml/min/1.73 m2/year compared to the shortest iPR or dQRS tertile after adjustment for covariates. CONCLUSION: The iPR and dQRS could be independent predictors of renal function decline in healthy subjects.
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