Decreased RR interval complexity and loss of circadian rhythm in patients with congestive heart failure.
作者： Sun Gil Kim , Myung Kul Yum
DOI: 10.1253/JCJ.64.39
关键词:
摘要: The present study investigated how the RR interval complexity and variability their circadian rhythms alter for patients with congestive heart failure (CHF). Sixteen aged between 41 72 years CHF 20 control subjects were included. 24-h ambulatory electrocardiographic recordings analyzed, digitized data was partitioned into sections of 30-min duration. For each section, time- frequency-domain indices, indices rate calculated. patients, average values all significantly decreased. mean intervals preserved resembled abnormal low-frequency power. high-frequency power shown in normal lost. Conclusively, showed decreased loss its rhythm, addition to rhythm.
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