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Effects of cigarette smoking on ambulatory blood pressure, heart rate, and heart rate variability in treated hypertensive patients

机译:吸烟对高血压患者动态血压,心率和心率变异性的影响

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摘要

We investigated the influence of cigarette smoking on the levels and circadian patterns of blood pressure (BP), heart rate (HR), and HR variability (HRV) in hypertensive patients. Sixteen hypertensive smokers (57 +/- 2 years old) receiving antihypertensive treatments participated in this study. Ambulatory monitoring of BP, HR, and electrocardiograms was performed every 30 min for 24 hours on a smoking day and nonsmoking day in a randomized crossover manner. Average 24-hour BP and daytime BP were significantly higher in the smoking period than in the nonsmoking period. No significant differences were observed in nighttime BP between the two periods. Average 24-hour and daytime HR, but not nighttime HR, were also higher in the smoking period than in the nonsmoking period. The daytime high frequency (HF) component of HRV was attenuated more in the smoking period than in the nonsmoking period. No significant differences were observed in the low frequency (LF) components of HRV or LF/HF ratio between the two periods. These results demonstrated that cigarette smoking increased the daytime and average 24-hour BP and HR, and the increases observed in daytime BP and HR were associated with the attenuation of parasympathetic nerve activity.
机译:我们调查了吸烟对高血压患者的血压水平和昼夜节律模式(BP),心率(HR)和HR变异性(HRV)的影响。十六名接受降压治疗的高血压吸烟者(57 +/- 2岁)参加了这项研究。在吸烟日和非吸烟日每30分钟进行24小时的BP,HR和心电图动态监测,以随机交叉的方式进行。吸烟期间的平均24小时BP和白天BP显着高于非吸烟时期。在两个时期之间,夜间血压没有观察到显着差异。吸烟期间的平均24小时和白天HR(而非夜间HR)也高于非吸烟时期。在吸烟期间,HRV的白天高频(HF)分量比在不吸烟期间衰减得更多。在两个周期之间,HRV的低频(LF)分量或LF / HF比没有观察到显着差异。这些结果表明,吸烟增加了白天和平均24小时BP和HR,并且白天BP和HR的增加与副交感神经活动的减弱有关。

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