Supraglottic Airway Devices and effect on phonation - comparison of Proseal LMA and I-gel airway

Not Applicable

Completed

• Conditions: Postoperative phonatory dysfunction; Dysphonia; Anaesthesiology - Anaesthetics; Other - Conditions of unknown or disputed aetiology (such as chronic fatigue syndrome/myalgic encephalomyelitis)

• Registration Number: ACTRN12613000719730
• Lead Sponsor: Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2013-07-01
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 90

Inclusion Criteria

Adults belonging to ASA 1 & 2 physical status undergoing surgeries for 60-120 min under general anaesthesia

Exclusion Criteria

Head and neck surgeries, surgeries lasting >120 min, anticipated difficult airway, preoperative abnormality in voice

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Postopertive pharyngolaryngeal morbidity including phonatory changes<br>Phonatory changes are assessed perceptively by speech pathologist by classifying the voice into normal, rough, breathy and asthenia patterns. Phonetic analysis of voice is performed and jitter, shimmer and Harmonic to Noise ratio are analysed as indicators of micro instability of vocal cords[24 hours after surgery]

Secondary Outcome Measures

Name	Time	Method
Vocal cord dysfunction<br>Phonetic analysis of voice is done by using PRAAT software. Jitter, Shimmer and Harmonic to Noise ratio are analysed which are found to correlate with micro instability of vocal cords[24 hours after surgery]