Relationship between Daytime Sleepiness and Health Utility in Patients after Cardiac Surgery: A Preliminary Study

Abstract

Background Daytime sleepiness can be assessed by the Epworth Sleepiness Scale (ESS), which is widely used in the field of sleep medicine as a subjective measure of a patient’s sleepiness. Also, health utility assessed by the mean Short-Form Six-Dimension (SF-6D) score, one of several preference-based utility measures, is an important measure in health care. We aimed to examine age-related differences in daytime sleepiness and health utility and their relationship in patients 5 months after cardiac surgery. Methods; This cross-sectional study assessed 51 consecutive cardiac surgery patients who were divided into a middle-aged (<65 years, n = 29) and older-age group (≥65 years, n = 22). The mean ESS and SF-6D utility scores were measured at 5 months after cardiac surgery and compared. In addition, the relationship between ESS and SF-6D utility scores were assessed. Results; There were no significant differences between the middle-aged and older-aged groups in either the mean ESS (5.14 ± 2.96 vs. 4.05 ± 3.23, p = 0.22) or SF-6D utility (0.72 ± 0.14 vs. 0.71 ± 0.10, p = 0.76) scores. However, there was a negative correlation between both values in all of the patients after cardiac surgery (r = −0.41, p = 0.003). Conclusions; Although there were no age-related differences in the ESS and SF-6D utility values between the two groups, there was a negative correlation between these values in all patients at 5 months after cardiac surgery. This suggested that sleepiness is associated with decreased utility scores in patients at 5 months after cardiac surgery.

Rotational thromboelastometry in the perioperative period of cardiac surgeries: cost-effectiveness analysis and budget impact

“…Quality of life data from patients undergoing cardiac surgery are available in the literature Heiskanen et al, 2016;Izawa et al, 2018). Izawa et al (2018) examined age-related differences in health-related utility using the SF-6D scale in patients five months after cardiac surgery. They observed scores of 0.72 ± 0.14 in middle-aged patients and 0.71 ± 0.10 in elderly patients.…”

“…Heiskanen et al (2016) found utility values of 0.795 (0.765-0.826), in the baseline, and +0.053 (0.017-0.088) after 12 months. Given the proximity of the numbers, we decided to adopt a conservative approach and assume the value found by for being the largest sample among the three studies, which is roughly equivalent to the study by Izawa et al (2018) who is the most recent. Disutility values were used in long-term adverse events.…”

Sleep disturbance: The overlooked side after open heart surgery in adults

“…2 Because of this disturbed sleep quality and sleep deprivation, patients usually experience fatigue, hang-over and day sleepiness, slower recovery, prolonged stays at the hospital, and poor quality of life. 3 The aim of this study was to assess prevalence, causes and pattern of sleep disturbances among patients operated for cardiac surgery in using a validated questionnaire. Also, the study could be informative regarding relation of lowered sleep quality to different types of cardiac surgeries, descriptive terms of wide variety of patients and discovery of patients' behavior towards this disorder.…”

Relationship Between Physical Function and Health Utility in Patients Undergoing Surgical Treatment for Malignant Pleural Mesothelioma

“…9,10 Previous studies have recently reported that health utility has been used for analyzing various diseases. [11][12][13][14][15][16][17][18][19][20] In contrast, there are previous studies on lung cancer, where health utility for patients with non-small cell lung cancer after surgery have been studied, 21 but there are no studies evaluating the health utility of MPM patients undergoing P/D.…”