Central Systolic Blood Pressure and Left Ventricular Mass: Findings From the International 24‐Hour Aortic Blood Pressure Consortium

Background Central systolic blood pressure (cSBP) reflects the pressure experienced by vital organs and may be more closely related to hypertensive cardiac damage than brachial SBP. Twenty‐four–hour ambulatory blood pressure monitoring provides additional insight into cardiovascular load beyond office readings. This study investigated the association of 24‐hour cSBP, measured noninvasively with a validated device, with left ventricular mass index (LVMi) and LV hypertrophy. Methods We analyzed data from 21 centers worldwide (n=2367; 45.5% women; mean age 49.5 years) participating in the International 24‐Hour Aortic Blood Pressure Consortium. Brachial and central 24‐hour SBPs were recorded using the Mobil‐O‐Graph device, calibrated by either systolic/diastolic (cSBP C1) or mean/diastolic (cSBP C2) pressure; LVMi was derived echocardiographically. BP phenotypes (normotension, isolated diastolic and systolic hypertension, and systolic‐diastolic hypertension) were based on 24‐hour brachial BPs, subdivided by cSBP. Results LVMi correlated most strongly with 24‐hour cSBP C2 ( P