Is the Presence of eCAP Intraoperatively a Predictor of Cochlear Implant Outcomes in Adults?

The electrically-evoked compound action potential (eCAP) is commonly used to assess the physiological integrity of the auditory nerve's first neuron in cochlear implant (CI) users. Electrical stimulation of this neuron is essential for transmitting auditory signals to the auditory cortex, enabling the recognition of acoustic cues....

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Evidence on intraoperative eCAP as a reliable standalone predictor of cochlear implant outcomes in adults remains inconclusive; do not alter patient counselling or surgical protocols based on this single study until stronger, larger evidence is available.

If intraoperative eCAP reliably predicted post-implant hearing outcomes, surgeons could use it as an early, objective marker to set realistic expectations and guide rehabilitation planning — but the evidence base is not yet there.

1. 01Study investigated whether intraoperative eCAP (electrically evoked compound action potential) presence predicts CI outcomes in adults.
2. 02eCAP measures auditory nerve physiological integrity at the time of cochlear implant surgery.
3. 03Published in International Archives of Otorhinolaryngology (DOI: 10.1055/s-0046-1820088).
4. 04Findings may inform intraoperative monitoring practices but require replication in larger cohorts.
5. 05Adult CI candidates were the study population; outcomes likely assessed via speech perception measures.

PMID

42732139

DOI

10.1055/s-0046-1820088.

Journal

International Archives of Otorhinolaryngology

Publication type

research_article

Evidence level

4

Population

Adults undergoing cochlear implantation

Intervention

Intraoperative electrically evoked compound action potential (eCAP) measurement