BACKGROUND: Emotional well-being and physical function are important quality-of-life outcomes after cardiac surgery. Alterations in sleep patterns, including sleep deprivation and altered circadian patterning, also are common. The relations among sleep pattern alterations, physical function, and emotional well-being are not well understood. OBJECTIVE: This study aimed to examine the relations of sleep patterns to physical function and emotional well-being 4 and 8 weeks after cardiac surgery. METHODS: Cardiac surgery patients (n = 72) wore wrist actigraphs and completed sleep diaries for 3 days during postoperative weeks 4 and 8. They also completed the Epworth Sleepiness Scale, the Pittsburgh Sleep Quality Index, and the Medical Outcomes Survey Short Form 36 preoperatively and at postoperative weeks 4 and 8. Pearson correlations and hierarchical multiple regression analysis were used to analyze the data. RESULTS: Mean sleep efficiency was 71% at 4 weeks and 74% at 8 weeks, as measured with wrist actigraphy. According to participants' self-report, 64% experienced sleep disturbance at 4 weeks and 47% at 8 weeks. Sleep pattern variables, including sleep efficiency and self-reported sleep quality, explained 16% of the variance in physical function at 4 weeks. Self-reported sleep quality explained 8% of the variance in physical function at 8 weeks as well as 12% of the variance in emotional well-being at postoperative week 4 and 13% of the variance at postoperative week 8, after control was used for the contributions of baseline physical function, emotional well-being, age, and sex. CONCLUSIONS: The results suggest that sleep contributes to both physical functional and emotional well-being 4 and 8 weeks after cardiac surgery.
BACKGROUND: Emotional well-being and physical function are important quality-of-life outcomes after cardiac surgery. Alterations in sleep patterns, including sleep deprivation and altered circadian patterning, also are common. The relations among sleep pattern alterations, physical function, and emotional well-being are not well understood. OBJECTIVE: This study aimed to examine the relations of sleep patterns to physical function and emotional well-being 4 and 8 weeks after cardiac surgery. METHODS: Cardiac surgery patients (n = 72) wore wrist actigraphs and completed sleep diaries for 3 days during postoperative weeks 4 and 8. They also completed the Epworth Sleepiness Scale, the Pittsburgh Sleep Quality Index, and the Medical Outcomes Survey Short Form 36 preoperatively and at postoperative weeks 4 and 8. Pearson correlations and hierarchical multiple regression analysis were used to analyze the data. RESULTS: Mean sleep efficiency was 71% at 4 weeks and 74% at 8 weeks, as measured with wrist actigraphy. According to participants' self-report, 64% experienced sleep disturbance at 4 weeks and 47% at 8 weeks. Sleep pattern variables, including sleep efficiency and self-reported sleep quality, explained 16% of the variance in physical function at 4 weeks. Self-reported sleep quality explained 8% of the variance in physical function at 8 weeks as well as 12% of the variance in emotional well-being at postoperative week 4 and 13% of the variance at postoperative week 8, after control was used for the contributions of baseline physical function, emotional well-being, age, and sex. CONCLUSIONS: The results suggest that sleep contributes to both physical functional and emotional well-being 4 and 8 weeks after cardiac surgery.
Authors: Rachel A Millstein; Christopher M Celano; Eleanor E Beale; Scott R Beach; Laura Suarez; Arianna M Belcher; James L Januzzi; Jeff C Huffman Journal: Gen Hosp Psychiatry Date: 2016-08-30 Impact factor: 3.238
Authors: Claire Beveridge; Kristen Knutson; Lisa Spampinato; Andrea Flores; David O Meltzer; Eve Van Cauter; Vineet M Arora Journal: J Am Geriatr Soc Date: 2015-07-01 Impact factor: 5.562
Authors: Cathy A Alessi; Jennifer L Martin; Adam P Webber; Tarannum Alam; Michael R Littner; Judith O Harker; Karen R Josephson Journal: Sleep Date: 2008-09 Impact factor: 5.849