Sleep disturbances after cardiac surgery with or without elevated S100B levels.
OBJECTIVE
The aim of the study was to investigate sleep disturbances of cardiac surgery patients with or without elevated S100B levels.


RESULTS
Twenty-two patients with serum S100B > 0.3 microg/l (study group) 12 hours after cardiac surgery with cardiopulmonary bypass and 23 patients with serum S100B < 0.3 (control group) were investigated in a prospective study. They were evaluated with the use of objective sleep tests. Cardiopulmonary bypass has negatively affected the sleep characteristics in the postoperative period for both groups. Maintenance wakefulness test, total sleep time, total activity score and sleep efficiency scores were significantly shorter in the study group in the postoperative period. Sleep latency, percentage of wakefulness after sleep onset, daytime napping episodes and total nap duration in the same period were significantly higher than in the control group.


CONCLUSIONS
Cardiac surgery affects a patient's sleep characteristics. Patients with elevated S100B values have more sleep disturbances after cardiac surgery than patients with normal S100B values.
Department of Cardiovascular Surgery, Celal Bayar University School of Medicine, Manisa, Turkey.
Ihsan
I
Iskesen
Adnan Taner
AT
Kurdal
Hikmet
H
Yilmaz
Mustafa
M
Cerrahoglu
Bekir Hayrettin
BH
Sirin
D000368:Aged; D006348:Cardiac Surgical Procedures; D002315:Cardiopulmonary Bypass; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009414:Nerve Growth Factors / Q000097:blood*; D017286:Polysomnography; D011183:Postoperative Complications / Q000097:blood*; D011446:Prospective Studies; D064568:S100 Calcium Binding Protein beta Subunit; D009418:S100 Proteins / Q000097:blood*; D007319:Sleep Initiation and Maintenance Disorders / Q000097:blood / Q000209:etiology; D012893:Sleep Wake Disorders / Q000097:blood* / Q000209:etiology*
D009414:Nerve Growth Factors; D064568:S100 Calcium Binding Protein beta Subunit; D009418:S100 Proteins; C579160:S100B protein, human