caa a22 4500 475848659 CHVBK 20180406123922.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1007/s004050050207 doi (NATIONALLICENCE)springer-10.1007/s004050050207 Hearing loss after cardiopulmonary bypass surgery [Elektronische Daten] [A. Walsted, U. K. Andreassen, P. G. Berthelsen, A. Olesen] Hearing loss (HL) is a rare complication following cardiac surgery with extracorporal circulation (CSWEC) or other non-otologic surgery under general anesthesia, as is HL caused by loss of cerebrospinal fluid during neurosurgery or spinal anesthesia. The incidence of HL after CSWEC is not known since preoperative hearing testing is not commonly done and a perioperative HL may occur unnoticed. We present four cases of profound sensorineural hearing loss following CSWEC for coronary artery bypass or cardiac valve surgery. The hearing loss was noticed immediately on waking from anesthesia in three of the patients, whereas the fourth patient noticed decreased hearing during the first postoperative week. In all patients audiological investigation suggested a cochlear etiology of the HL. The possible mechanisms for HL are discussed. HL after CSWEC is most likely caused by a microembolism generated by atheromatous material. Springer-Verlag Berlin Heidelberg, 2000 Key words Cochlear deafness nationallicence Extracorporal cardiac surgery nationallicence Microembolism-induced sensorineural hearing loss nationallicence Walsted A. Department of Audiology, Gentofte University Hospital, Hellerup, Denmark and Melchiorsvej 6, 2920 Charlottenlund, Denmark, DK aut Andreassen U. K. Department of ENT, Head and Neck Surgery, Gentofte University Hospital, Hellerup, Denmark, DK aut Berthelsen P. G. Department of Anesthesiology, Gentofte University Hospital, Hellerup, Denmark, DK aut Olesen A. Department of Cardiothoracic Surgery, Gentofte University Hospital, Hellerup, Denmark, DK aut https://doi.org/10.1007/s004050050207 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s004050050207 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Walsted A. Department of Audiology, Gentofte University Hospital, Hellerup, Denmark and Melchiorsvej 6, 2920 Charlottenlund, Denmark, DK aut NATIONALLICENCE 700 1- Andreassen U. K. Department of ENT, Head and Neck Surgery, Gentofte University Hospital, Hellerup, Denmark, DK aut NATIONALLICENCE 700 1- Berthelsen P. G. Department of Anesthesiology, Gentofte University Hospital, Hellerup, Denmark, DK aut NATIONALLICENCE 700 1- Olesen A. Department of Cardiothoracic Surgery, Gentofte University Hospital, Hellerup, Denmark, DK aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer