Factors affecting outcome of cochlear implant: an observational study

Authors

  • Parth Patni Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India
  • Deepak Dalmia Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India
  • Udayanila T. Consultant, Anand Hospitals, Tirupur, Tamil Nadu, India
  • Harish Katakdhond Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India
  • Karthika Bhagavan Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India

DOI:

https://doi.org/10.18203/issn.2454-5929.ijohns20204180

Keywords:

Cochlear implant, Congenital sensorineural hearing loss, Age at implantation, CAP score, SIR score, MAIS score

Abstract

Background: Aim and objectives of the study was to evaluate various factors affecting outcome in cochlear implant surgery.

Methods: A hospital based retrospective observational study in which 51 patients who underwent cochlear implant surgery from July 2017 to January 2019 were evaluated at Dr. Babasaheb Ambedkar Memorial Hospital, Byculla, Mumbai using 3 parameters i.e. Revised CAP score (CAP), meaningful auditory integration scale (MAIS), speech intelligibility rating (SIR) at various intervals postoperatively and outcome was evaluated.

Results: It was found that the postoperative mean scores in all age groups were comparable but not significant at 3, 6 and 9 months interval while the difference was statistically significant at 12 and 24 months interval post implantation with less than 2 years age group performing better than other age groups patients with less than 2 years duration of auditory deprivation, the mean scores were found to be statistically significant at 12 and  24 months implantation Relationship to common causes such as prenatal infections, low birth weight, prolonged labour, hyperbilirubinemia, meningitis and consanguineous marriage were considered but not significant. No significant difference was observed in parent’s education level, urban-rural population to the outcome of cochlear implantation.

Conclusions: Two most important factors that affect the outcome cochlear implantation are the age at implantation and the duration of auditory deprivation. Other factors are important but not significant and do not affect the outcome significantly.

Author Biographies

Parth Patni, Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India

DNB Resident, Department of ENT, Dr. B.A.M. Central Railway Hospital, Byculla, Mumbai

Deepak Dalmia, Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India

Head Of Department, Department of ENT, Dr. B.A.M. Central Railway Hospital, Byculla, Mumbai

Udayanila T., Consultant, Anand Hospitals, Tirupur, Tamil Nadu, India

Consultant, Anand Hospitals, Tirupur, Tamil Nadu

Harish Katakdhond, Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India

Senior Resident, Department of  ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai

Karthika Bhagavan, Department of ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai, India

DNB Resident Department of  ENT, Dr. Baba Saheb Ambedkar Central Railway Hospital, Byculla, Mumbai

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Published

2020-09-23

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Original Research Articles