PubMed Health⌕ Search

Biomedical subjects

Christine Hedges

Publications and source records attributed to Christine Hedges.

8 recordsLinked to original sources
PubMed2005

Sleep, memory, and learning in off-pump coronary artery bypass patients.

In this study, I examined sleep, memory, and learning in off-pump coronary artery bypass (OPCAB) patients. Sixty-six men and women aged >or=60 years wore actigraphs to record sleep and completed sleep diaries for two 24-hour periods following OPCAB surgery. Prior to discharge from the hospital, participants completed the Pittsburgh Sleep Quality Index (PSQI) and Rey Auditory Verbal Learning Test. No significant correlations were found between habitual sleep, sleep time, efficiency, number, and duration of awakenings, daytime napping, or memory and learning. Nighttime sleep was short with frequent disturbances, and daytime sleep accounted for half the daily sleep time. Participants scored low in learning and delayed recall. These findings suggest the need to assess sleep and cognition in patients recovering from OPCAB surgery.

Age Factors↗
PubMed2004

Patterns and predictors of sleep pattern disturbance after cardiac surgery.

The purposes of this study were to examine changes in sleep patterns after cardiac surgery and the contributions of preoperative sleep to postoperative sleep. Seventy-two cardiac surgery patients wore wrist actigraphs for 3 days during the preoperative period (T1) and the 1st (T2), 4th (T3), and 8th (T4) postoperative weeks. They completed the Pittsburgh Sleep Quality Index at T1, T3, and T4. Sleep was most disturbed during the 1st postoperative week and improved at T3 and T4. Overall, sleep pattern disturbance was higher at T3 and T4 than at T1. Age, gender, preoperative New York Heart Association Functional Class, and preoperative sleep variables explained 20%-50% of the variance in sleep at T2, T3, and T4. Sleep disturbance is present preoperatively and continues during the postoperative period.

Adult↗
PubMed2002

Sleep during hospitalization and recovery after cardiac surgery.

Sleep disturbance is common in patients undergoing cardiac surgery and has been recognized for more than 30 years. Research findings suggest that sleep disturbance is a multifactorial process that has many correlates in these patients and persists from the presurgical period throughout recovery. A growing body of literature suggests the importance of sleep for function and well-being of these patients. The research literature is synthesized and implications for future research and practice are discussed.

Adult↗
PubMedDate not supplied

Sleep is related to physical function and emotional well-being 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.

Activities of Daily Living↗