Effects of ambient temperature on blood pressure and autonomic nervous system function during sleep in prehypertension patients

• Main Authors: Edward Pochi Huang, 黃柏錡
• Other Authors: Terry B.J. Kuo
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/28789784290823218111

碩士 === 國立陽明大學 === 生醫光電研究所 === 102 === Comparing with the risk of Cardiovascular Disease in different seasons, winter is the highest risk of cardiovascular disease. Although, the highest risk occurred in the winter morning. So, we assumed that the temperature is one of the factor which causes the cardiovascular disease. Aim: By the autocloud health monitoring system and autoXenon BP moniter, we find out the relationship between temperature and physiological changes. To moniter the hypertension patients ay least a year, we expect to proof the effect of temperature among short and long term physiological changes. Method: (1) Sleeping in cold and warm, the subjects who wear the autoXenon BP moniters and KY1 can be recorded their heart rate and blood pressure. (2) By the autocloud health monitoring system, the subject can be recorded their BP at least a year. Result: (1) In winter, the coefficient of correlation between BP and temperature in hypertension patients is higher than control. (2) Sleeping in cold, the number of arousal in prehypertension subjects is higher than control. That, it may come with the higher LF/HR and LF% during the last NREM-REM before waking. Therefore, the higher morning surge which come with the hiher LF/HF and LF % in prehypertension subject may be the factor of risk of cardiovascular disease in winter.