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CTRI Number  CTRI/2018/05/014321 [Registered on: 31/05/2018] Trial Registered Retrospectively
Last Modified On: 16/05/2018
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   comparison of different indices in predicting difficult airway 
Scientific Title of Study   Comparison of the Ratio of patients height to thyromental distance versus the Modified Mallampati versus the Upper Lip Bite Test in predicting difficult laryngoscopy 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Pooja P 
Designation  Primary DNB Resident 
Affiliation  Kerala institute of medical sciences 
Address  Kerala institute of medical sciences Pb.no 1 Anayara

Thiruvananthapuram
KERALA
695029
India 
Phone  9400996342  
Fax  914712443565  
Email  pooja.plan@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Sherly John 
Designation  Consultant Anaesthesiologist 
Affiliation  Kerala Institute Of Medical Science 
Address  Kerala institute of medical sciences Pb.no 1 Anayara Trivandrum

Thiruvananthapuram
KERALA
695029
India 
Phone  8129603624  
Fax  914712443565  
Email  sherlyjohn24@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Sherly John 
Designation  Consultant Anaesthesiologist 
Affiliation  Kerala Institute Of Medical Science 
Address  Kerala institute of medical sciences Pb.no 1 Anayara Trivandrum


KERALA
695029
India 
Phone  8129603624  
Fax  914712443565  
Email  sherlyjohn24@gmail.com  
 
Source of Monetary or Material Support  
Kerala institute of medical sciences Pb.no 1 Anayara Trivandrum kerala 695029 
 
Primary Sponsor  
Name  Kerala Institute Of Medical Science 
Address  pb.no 1 Anayara trivandrum 29 
Type of Sponsor  Research institution and hospital 
 
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 
Pooja P  Kerala institute of medical sciences  Pb No.1 Anayara p.o Trivandrum
Thiruvananthapuram
KERALA 
9400996342

pooja.plan@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Human Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  ASA 2,  
 
Intervention / Comparator Agent  
Type  Name  Details 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  1.ASA Physical status 1-3
2.Patients posted for elective surgeries schedule to receive general anesthesia (Orthopedic, ENT, Abdominal, Urologic and Gynecological procedures)
3.Age between 18-65 years.
 
 
ExclusionCriteria 
Details  1.Uncooperative and unwilling patients.
2.History of burns, trauma or surgeries to airway.
3.Tumors or mass in the neck or the airway.
4.Patients with restricted mobility at neck and mandible.
5.Patients with inability to sit, edentulous or need awake intubation.


 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
To compare the predictive value of ratio of patient’s height to thyromental distance, modified Mallampati classification, and upper lip bite test in difficult laryngoscopy

 
september 2019 
 
Secondary Outcome  
Outcome  TimePoints 
not applicable
 
not applicable
 
 
Target Sample Size   Total Sample Size="100"
Sample Size from India="100" 
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)   28/11/2017 
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="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   none yet 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary   In this study, comparison of predictive value of the ratio of patient’s height to thyromental distance with the modified mallampati and the upper lip bite test as methods of airway assessments for difficult laryngoscopy will be done.

Study will be done on 100 consenting patients with ASA physical status 1-3 aged between 18-65 yrs scheduled to receive general anesthesia requiring endotracheal intubation for elective orthopedic ,ENT, urologic, abdominal and gynecological surgery.

The principal investigator measures the thyromental distance from the bony point of the mentum to thyroid notch.Height of the patient will be measured in cm from vertex to heel with the patient in standing position and will calculate RHTMD.MMT and ULBT will also be assesses preoperatively.The difficulty in laryngoscopy is assessed at the time of intubation.

The efficacy in predicting difficulty in laryngoscopy will be compared with RHTMD,MMT,ULBT.
 
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