Blood pressure monitoring
The blood pressure (BP) was measured with the participant in a supine position using a standard mercury sphygmomanometer by a trained nurse. After randomization, the BP was measured at 7 a.m. and 3 p.m. every day for a week until hospital discharge or death.javascript:void(0); Systolic blood pressure fluctuation (SBPF) was calculated using the following equation: SBPF = {(SBP