European Archives of Oto-Rhino-Laryngology

, Volume 257, Issue 3, pp 124–127

Hearing loss after cardiopulmonary bypass surgery

  • A. Walsted
  • U. K. Andreassen
  • P. G. Berthelsen
  • A. Olesen

DOI: 10.1007/s004050050207

Cite this article as:
Walsted, A., Andreassen, U., Berthelsen, P. et al. European Archives of Oto-Rhino-Laryngology (2000) 257: 124. doi:10.1007/s004050050207


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.

Key words Cochlear deafness Extracorporal cardiac surgery Microembolism-induced sensorineural hearing loss 

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • A. Walsted
    • 1
  • U. K. Andreassen
    • 2
  • P. G. Berthelsen
    • 3
  • A. Olesen
    • 4
  1. 1.Department of Audiology, Gentofte University Hospital, Hellerup, Denmark and Melchiorsvej 6, 2920 Charlottenlund, DenmarkDK
  2. 2.Department of ENT, Head and Neck Surgery, Gentofte University Hospital, Hellerup, DenmarkDK
  3. 3.Department of Anesthesiology, Gentofte University Hospital, Hellerup, DenmarkDK
  4. 4.Department of Cardiothoracic Surgery, Gentofte University Hospital, Hellerup, DenmarkDK

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