Health  Vol.5 No.3 A , March 2013
Sleep conditions and quality of life among patients with ischemic heart disease after elective percutaneous coronary intervention

In Japan, percutaneous coronary intervention (PCI) is a major therapeutic intervention for ischemic heart disease (IHD). Previous studies suggested that an association of the risk of IHD caused by sleep duration was related to factors closely associated with daily activities. However, in Japan, there is no study about this relationship objectively measured using the actigraphy in patients with IHD. Moreover, there is little reported data about sleep condition and early outcomes of patient’s Health-Related Quality of Life (QOL) after PCI. This study determines the correlations between sleep conditions and QOL (measured by SF36 version 2) of 25 patients with IHD who underwent elective PCI. Data were collected seven days after PCI using night-sleep condition. Using Spearman’s rank test, the results revealed positive correlation between vitality score and longest sleep duration (ρ = 0.43, p = 0.031): social functioning (SF) score and duration of night-time sleep (ρ = 0.42, p = 0.037); total sleep duration (ρ = 0.45, p = 0.026), and longest sleep duration (ρ = 0.44, p = 0.024); mental health score and longest sleep duration (ρ = 0.54, p = 0.006). However, negative correlation was found between physical functioning score and arousal during sleep (ρ = -0.44, p = 0.027). Sleep condition was significantly correlated with QOL. In particular, SF score was positively related to night-time sleep. This seems to indicate that SF score might be related to night-time sleep condition. Moreover, the longest sleep durations were correlated with the mental component summary. The results of the study suggest that not only the length of whole sleep durations leads to better QOL, but also the increase the amount of uninterrupted sleep.

Cite this paper: Yasuhara, Y. , Kobayashi, H. , Tanioka, T. , Fujikawa, E. , Fujinaga, H. , Kongsuwan, W. and Locsin, R. (2013) Sleep conditions and quality of life among patients with ischemic heart disease after elective percutaneous coronary intervention. Health, 5, 532-537. doi: 10.4236/health.2013.53A072.

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