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CTRI Number  CTRI/2023/03/050930 [Registered on: 21/03/2023] Trial Registered Prospectively
Last Modified On: 20/03/2023
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Follow Up Study 
Study Design  Single Arm Study 
Public Title of Study   Evaluation of Vocal change following Endotracheal intubation using Praat software 
Scientific Title of Study   Evaluation of Incidence of Dysphonia and Vocal Symptoms following Endotracheal Intubation using Praat Software-An Observational Study 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Aravinth N 
Designation  Post Graduate 
Affiliation  Mahatma Gandhi Medical College and Research Institute 
Address  Department of Anaesthesiology , Mahatma Gandhi Medical College and Research Institute ,Pondicherry-cuddalore road,Pillaiyarkuppam. Pondicherry -607402

Pondicherry
PONDICHERRY
607402
India 
Phone  8870000055  
Fax    
Email  aravinthnatarajantup@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Antony John Charles S 
Designation  Professor 
Affiliation  Mahatma Gandhi Medical College and Research Institute 
Address  Department of Anaesthesiology , Mahatma Gandhi Medical College and Research Institute ,Pondicherry-cuddalore road,Pillaiyarkuppam. Pondicherry -607402

Pondicherry
PONDICHERRY
607 402
India 
Phone  9600931102  
Fax    
Email  anjocharlie@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Antony John Charles S 
Designation  Professor 
Affiliation  Mahatma Gandhi Medical College and Research Institute 
Address  Department of Anaesthesiology , Mahatma Gandhi Medical College and Research Institute ,Pondicherry-cuddalore road,Pillaiyarkuppam. Pondicherry -607402

Pondicherry
PONDICHERRY
607 402
India 
Phone  9600931102  
Fax    
Email  anjocharlie@gmail.com  
 
Source of Monetary or Material Support  
Mahatma Gandhi Medical College and Research Institute , Pondicherry  
 
Primary Sponsor  
Name  Mahatma Gandhi Medical College and Research Institute , Pondicherry  
Address  Mahatma Gandhi Medical College and Research Institute , Pondicherry -cuddalore Ecr road ,Pillaiyarkuppam Pondicherry -607 402 
Type of Sponsor  Private medical college 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Aravinth N  Mahatma Gandhi Medical College and Research Institute   Department of Anaesthesiology ,Mahatma Gandhi Medical College and Research Institute , Pondicherry -Cuddalore ECR road ,Pillaiyarkuppam Pondicherry -607 402
Pondicherry
PONDICHERRY 
8870000055

aravinthnatarajantup@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTIONAL HUMAN ETHICS COMMITTE  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  75.00 Year(s)
Gender  Both 
Details  1.General anaesthesia with Endotracheal intubation.
2.Patient aged 18 years and above
3.Patient belonging to ASA-1 & ASA-2
4.Rule out Pre existing vocal cord lesions. 
 
ExclusionCriteria 
Details  1.Endotracheal intubation during emergency surgery and in ICU
2.Patient with history of Preoperative URI or LRI within 14 days of recovery .
3.Reactive airway patients , and any surgery that include manipulation of larynx or tracheostomy and past laryngeal surgery.
4.Pregnant Woman 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Evaluation of Incidence of Dysphonia and Vocal symptoms following Endotracheal Intubation using Praat Software  2 hours and 24 hours after Extubation 
 
Secondary Outcome  
Outcome  TimePoints 
1. Assessment and evaluation of acoustic vocal indices changes by comparing voice change before intubation and after extubation using PRAAT software.
2. To record the incidence of sore throat ,hoarseness, vocal fatigue ,throat clearing and throat pain following intubation.
3.To record the number of intubation attempts its influence on voice change.
4.To record any use of airway adjuncts like stylet ,bougie. 
2 hours and 24 hours after Extubation 
 
Target Sample Size   Total Sample Size="145"
Sample Size from India="145" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   N/A 
Date of First Enrollment (India)   14/04/2023 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details    
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   Previous studies have already established that there is voice change after endotracheal intubation.Airway management is one of the significant responsibilities of a trained anaesthesiologist.Therefore ,a detailed observational study are required to evaluate the impact on laryngeal function after endotracheal intubation that is vocal acoustic changes on voice and vocal symptoms following endotracheal intubation by using PRAAT software by comparing the voice pre intubation and post extubation voice.

RESEARCH QUESTION : Does Post Endotracheal Intubation cause significant  voice Change and vocal symptoms? 

Inclusion criteria will be General Anaesthesia with Endotracheal intubation, patients aged 18 years and above belonging to ASA I-II, and to rule out any preexisting vocal cord lesions.  

Exclusion criteria will be Endotracheal intubation during emergency surgery and in ICU, patient with history of preoperative URI or LRI within 14 days of recovery, reactive airway and any surgery that include manipulation of larynx or tracheostomy and past laryngeal surgery, pregnant woman. 

 The voice of the participants will be recorded and analysed preoperatively by using PRAAT software and will be compared with their voice postoperatively, 2 hours and 24 hours post extubation. 

 The acoustic analysis of voice will be performed by PRAAT software 6.2.14 version.        The      voice   signal will      be       recorded          with microphone     inbuilt Macbook(laptop)M1 directly with sampling rate of 44100 Hz will be used. Prior to recording, patients will be asked to take a deep breath and to phonate vowels, /a/, /i/, or /u/. The Macbook microphone will be held at a distance of 10 cm from the mouth of the patient with ambient noise below 50 db.  

 PRAAT software 6.2.14 version will be used to record voice related parameters like Mean pitch (Fundamental frequency), Jitter%, Shimmer(dB), Harmonics to noise ratio (db) and Maximum Phonation time 

The vocal symptoms will be evaluated in all patients in the study and it includes Sore throat, hoarseness, vocal fatigue, throat clearing and throat pain.  

 
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