Do Combined Electrocardiographic and Echocardiographic Markers of Left Ventricular Hypertrophy Improve Cardiovascular Risk Estimation?

Cesare Cuspidi, Rita Facchetti, Carla Sala, Michele Bombelli, Marijana Tadic, Guido Grassi, Giuseppe Mancia
Journal of Clinical Hypertension 2016, 18 (9): 846-54
The authors estimated the risk of cardiovascular mortality associated with echocardiographic (ECHO) left ventricular hypertrophy (LVH) and subtypes of this phenotype in patients with and without electrocardiographic (ECG) LVH. A total of 1691 representatives of the general population were included in the analysis. During a follow-up of 211 months, 89 cardiovascular deaths were recorded. Compared with individuals with neither ECHO LVH nor ECG LVH, fully adjusted risk of cardiovascular mortality increased (hazard ratio [HR], 3.36; 95% confidence interval [CI], 1.51-7.47; P=.003) in patients with both ECHO-LVH and ECG-LVH, whereas the risk entailed by ECHO-LVH alone was of borderline statistical significance (P=.04). Combined concentric nondilated LVH and ECG-LVH, but not concentric nondilated LVH alone, predicted cardiovascular death (HR, 3.79; 95% CI, 1.25-11.38; P=.01). Similar findings were observed for eccentric nondilated LVH (HR, 3.37; 95% CI, 1.05-10.78; P=.04.). The present analysis underlines the value of combining ECG and ECHO in the assessment of cardiovascular prognosis related to abnormal left ventricular geometric patterns.

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