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Delayed-onset haematoma formation after cochlear implantation

  • W-K Low (a1) (a2) (a3) and S Xu (a1)
Abstract Objective:

This paper presents our experience on delayed-onset haematoma formation after cochlear implantation, a topic which has not been well discussed in the literature.


Retrospective case review study.


Five children who had undergone cochlear implant surgery at 1.5 to 4 years of age (median, 2.5 years) were studied. The haematoma episodes occurred 2–12 years (median, 6 years) after cochlear implantation. Two patients had recurrent episodes. Two of the seven haematoma episodes were managed by needle aspiration alone, four by incision and drainage alone, and one by both needle aspiration and incision and drainage. Other than one patient with coagulopathy, there were no obvious predisposing factors, including trauma.


The majority of delayed-onset haematomas occurred without obvious predisposing factors. Needle aspiration can differentiate a haematoma from an abscess or cerebrospinal fluid leakage, and it provides an effective immediate therapeutic solution. However, aseptic techniques are emphasised to minimise the chances of an uncomplicated haematoma converting into a septic one.

Corresponding author
Address for correspondence: Dr Wong-Kein Low, Novena ENT Head and Neck Surgery Specialist Centre, #04-21/22/34, Mount Elizabeth Novena Hospital, 38 Irrawaddy Road, Singapore 329563 Fax: +65 6933 0547 E-mail:
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1 K Bhatia , KP Gibbin , TP Nikolopoulos , GM. O'Donoghue Surgical complications and their management in a series of 300 consecutive pediatric cochlear implantations. Otol Neurotol 2004;25:730–9

2 R Filipo , C D'Elia , E Covelli , GA Bertoli , E De Seta , F Manganaro Haematoma after cochlear implantation: management of a minor complication. Acta Otolaryngol 2010;130:108–13

3 WK Low , M Rangabashyam , F. Wang Management of major post-cochlear implant wound infections. Eur Arch Otorhinolaryngol 2014;271:2409–13

4 JD Horton , DR Friedmann , JT Roland Jr. Delayed extradural CSF collection following pediatric cochlear implantation: report of two cases. Otol Neurotol 2016;37:654–7

5 R Filipo , E Covelli , C D'elia , P. Mancini Delayed retroauricular cerebrospinal fluid (CSF) collection in cochlear implantation. Cochlear Implants Int 2011;12:248–50

6 MC Rojas , JA Eliason , DR. Fredrick Needle aspiration of a traumatic subperiosteal haematoma of the orbit. Br J Ophthalmol 2002;86:593–4

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The Journal of Laryngology & Otology
  • ISSN: 0022-2151
  • EISSN: 1748-5460
  • URL: /core/journals/journal-of-laryngology-and-otology
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