Comparing the hearing test responses elicited by three sound stimuli among premature and full-term babies.

Comparison of click, tone-burst and chirp evoked oto-acoustic emissions in pre-term and full-term neonates

Status

Active, not recruiting

Phases

Phase 2

Study type

Observational

Source

CTRI

Registry ID

CTRI/2019/07/020336

Enrollment

Registered

2019-07-23

Start date

Unknown

Completion date

Unknown

Last updated

2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: O80- Encounter for full-term uncomplicated delivery Health Condition 2: O601- Preterm labor with preterm delivery

Interventions

Intervention1: Not applicable: Not applicable

Eligibility

Inclusion criteria

Inclusion criteria: Inclusion Criteria Group 1(Pre-term) 1)Less than 35 weeks of gestation 2)OAE screening result â??PASS Group 2(Full-term) 1)Full-term neonates 2)OAE screening result-PASS

Exclusion criteria

Exclusion criteria: Exclusion Criteria : Group 1(Pre-term) 1)Neonates with birth weight less than 1500 grams 2)Neonates in ventilator Group 2(Full-term) 1)Any risk factor associated with hearing loss, as described in JCIH (2007) will be excluded

Design outcomes

Primary

Measure	Time frame
For Amplitude: -Click â?¢ Reproducibility-% â?¢ SNRâ??0.5, 1.0,2.0 & 4.0 KHz -Toneburst â?¢ Reproducibility-% â?¢ SNR -Centre frequency- 0.5, 1.0,2.0 & 4.0KHz -Chirp â?¢ Reproducibility-% â?¢ SNR â??0.5, 1.0,2.0 & 4.0 KHz For Latency: Time frequency analysis of OAE with 3 stimuli will be performed to identify the frequency specific latency measures.Timepoint: Data collection & Data analysis: From July 2019 to March 2020	—

Measure

Time frame

For Amplitude: -Click â?¢ Reproducibility-% â?¢ SNRâ??0.5, 1.0,2.0 & 4.0 KHz -Toneburst â?¢ Reproducibility-% â?¢ SNR -Centre frequency- 0.5, 1.0,2.0 & 4.0KHz -Chirp â?¢ Reproducibility-% â?¢ SNR â??0.5, 1.0,2.0 & 4.0 KHz For Latency: Time frequency analysis of OAE with 3 stimuli will be performed to identify the frequency specific latency measures.Timepoint: Data collection & Data analysis: From July 2019 to March 2020

—

Secondary

Measure	Time frame
Not applicableTimepoint: not applicable	—

Countries

India

Contacts

Public ContactDr G Kanaka

Manipal College of Health Professions

g.kanaka@manipal.edu9845384136

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026