Evaluation of Morning Blood Pressure Elevation and Autonomic Nervous Activity in Hypertensive Patients Using Wavelet Transform of Heart Rate Variability

82 patients with untreated essential hypertension (office BP ≥140/90 mmHg), mean age 57.9, 60% male, based in Japan. Excluded secondary hypertension, evident cardiovascular disease, cerebrovascular disease, and malignancy.

Correlation between morning blood pressure elevation ratio and autonomic nervous activity indices (HF and LF/HF) measured by 24-hour Holter ECG and ambulatory BP monitoringsurrogate