Hearing loss in patients undergoing coronary artery bypass grafting with or without extracorporeal circulation.
BACKGROUND
Our aim was to investigate the differences in postoperative hearing thresholds in patients undergoing coronary artery bypass grafting with (Group I, n=20) or without (Group II, n=17) extracorporeal circulation.


METHODS
37 patients undergoing coronary artery bypass grafting with or without extracorporeal circulation were prospectively evaluated in terms of hearing threshold changes with the intention of documenting hearing losses postoperatively. The t-test for two independent variables was used for statistical analysis.


RESULTS
Hearing threshold changes were detected in 9 Group I patients (45%) and 3 Group II patients (17.65%). The difference between the two groups was statistically significant (p=0.0426).


CONCLUSIONS
Postoperative hearing threshold changes, not necessarily revealed by clinical examinations, are encountered after coronary artery bypass grafting operations. Extracorporeal circulation usage seems to bring an additional risk in terms of hearing loss.
Aytacoglu
Barlas N
BN
Department of Cardiovascular Surgery, Mersin University School of Medicine, Mersin, Turkey.
Ozcan
Cengiz
C
Sucu
Nehir
N
Gorur
Kemal
K
Doven
Oben
O
Camdeviren
Handan
H
Köse
Necmi
N
Dikmengil
Murat
M
D001300:Audiometry, Evoked Response; D001309:Auditory Threshold; D001026:Coronary Artery Bypass; D005112:Extracorporeal Circulation; D005260:Female; D034381:Hearing Loss / Q000175:diagnosis*; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis*