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CTRI Number  CTRI/2024/08/073152 [Registered on: 30/08/2024] Trial Registered Prospectively
Last Modified On: 29/08/2024
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cohort Study 
Study Design  Single Arm Study 
Public Title of Study   Evaluation of the Ratio of Neck Size to Thyroid-Chin Distance as a Predictor of Difficult Breathing Tube Insertion in Overweight Male Versus Female Patients 
Scientific Title of Study   Evaluation Of Ratio Of Neck Circumference To Thyromental Distance As Predictor Of Difficult Intubation In Obese Male Versus Female Patients 
Trial Acronym  Nil 
Secondary IDs if Any  
Secondary ID  Identifier 
Anupam21   NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  ANUPAM YADAV  
Designation  PG ANAESTHESIA  
Affiliation  ABVIMS and Dr RML Hospital ​New Delhi – 110001 
Address  Room No. 1503B Block 15th Floor Atal Bihari Vajpayee Institute of Medical Sciences and Dr Ram Manohar Lohia Hospital New Delhi-110001

Central
DELHI
110001
India 
Phone  7906576741  
Fax    
Email  doc.ay1990@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  MOHANDEEP KAUR  
Designation  PROFESSOR  
Affiliation  ABVIMS and Dr RML Hospital ​New Delhi – 110001 
Address  Room No511 5th Floor Atal Bihari Vajpayee Institute of Medical Sciences and Dr Ram Manohar Lohia Hospital New Delhi-110001

Central
DELHI
110001
India 
Phone  9868952253  
Fax    
Email  mdkaur@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Mohandeep Kaur 
Designation  Professor 
Affiliation  ABVIMS and Dr RML Hospital ​New Delhi – 110001 
Address  Room no 511 ​Department of Anaesthesiology ​ABVIMS and Dr RML Hospital ​New Delhi 110001

Central
DELHI
110001
India 
Phone  9868952253  
Fax    
Email  mdkaur@gmail.com  
 
Source of Monetary or Material Support  
DR RML HOSPITAL DELHI INDIA 110001 
 
Primary Sponsor  
Name  NIL 
Address  Nil 
Type of Sponsor  Other [Nil] 
 
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 
Dr Anupam yadav  ABVIMS and Dr RML Hospital  3rd floor Department Of Anaesthesia ABVIMS AND DR RML HOSPITAL Central DELHI
Central
DELHI 
7906576741

doc.ay1990@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Name of Committee Institutional Ethics Committee ABVIMS and RML Hospital,New Delhi  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  , (1) ICD-10 Condition: E669||Obesity, unspecified, (2) ICD-10 Condition: E669||Obesity, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
Comparator Agent  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Age 18 to 60years
ASA grade I and II
BMI more than 30 kg per meter square  
 
ExclusionCriteria 
Details  Trauma and tumour or deformity of upper airway
Difficult mouth opening with interincisor gap of less than three cm
Fracture and deformity of cervical spine
Patient with thyroid and neck swelling 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Neck Circumference
Thyromental Distance 
Neck circumference and thyromental distance are measured preoperatively fifteen minutes before  
 
Secondary Outcome  
Outcome  TimePoints 
1.​Modified Mallampati score
2. ​Requirement of any other airway device like stylet or bougie
3.​Requirement of any external laryngeal manoeuvre.
4. ​Requirement of Change of anaesthetist.
5. ​Number of attempts of intubation.
6.​Time taken for intubation.
 
From preoxygenation to endotracheal tube placement  
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
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)   09/09/2024 
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="5"
Days="2" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary   This is a cohort observational study to evaluate difficult intubation in obese male verses female by measuring neck circumference to thryromental distance ratio in obese patients undergoing elective surgery under general anaesthesia. This study has total sample size of 60 obese male and female patients. Present study   focuses   on   a   novel  preoperative  predictor—the   ratio   of neck circumference(NC) to  distance (TMD).  This is non-invasive bedside test, requiring minimal  time  and  no   special  equipment,  exhibits   superior   statistical   significance  compared  to    existing   indices.   Addressing  the challenges    of  maintaining   airway patency   in   obese  patients   in  both  the   genders. There is very less studies done separately in obese male verses female patients. There is paucity of literature evaluating ratio of Neck circumference to Thyromental distance as predictor of difficult intubation in obese male verses female patients. 
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