Ergodic Grey Relation on Systolic Blood Pressure with Heart Rate and Plasma Endothelin in Reverse- dipper Hypertensives
The purpose of this paper was to investigate the dynamic relationship of systolic blood pressure (SBP) with heart rate (HR) and plasma endothelin (ET) in reverse-dipper hypertensives using ergodic grey relation analysis (EGRA).To achieve the above goal, seventeen reverse-dipper patients were selected from the borderline or mild-to-moderate hypertensives.SBP and HR were recorded from ambulatory blood pressure monitoring (ABPM).Blood samples were collected simultaneously exactly at 1:00pm, 5:00pm, 9:00pm, 1:00am, 5:00am and 9:00am.ET was measured.Results: Circadian pattern of ET presented single-peak and single-trough, did not parallel change with SBP and HR which looked like two parallel lines.The strongest grey relation interval between SBP and HR existed for 20-hour, while between SBP and ET was 16hour.Conclusions: HR and ET are not the pacemaker of circadian rhythm of SBP.HR and ET work a delayed influence rather than parallel effect on SBP.
reverse-dipper hypertension ergodic grey relation analysis systolic blood pressure heart rate endothelin
Huang Ruiyan Sun Yat-sen Tan Xuerui
Dept.of Cardiology,Hospital of Shantou University Medical College Shantou,Guangdong,China University Cancer Center Guangzhou,Guangdong,China Dept.of Cardiology Hospital of Shantou University Medical College Shantou,Guangdong,China
国际会议
南京
英文
74-78
2011-09-15（万方平台首次上网日期，不代表论文的发表时间）