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CTRI Number  CTRI/2024/06/068634 [Registered on: 10/06/2024] Trial Registered Prospectively
Last Modified On: 24/06/2024
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Single Arm Study 
Public Title of Study   An Observational Study for Predicting Difficult Tube Placement by Airway Assessment Tests in Adults: Which Airway Assessment Test is Most Accurate? 
Scientific Title of Study   Prospective evaluation of airway assessment tests to predict difficult endotracheal intubation in adults: observational study 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Shrawan 
Designation  Postgraduate Student 
Affiliation  Yenepoya School of Allied Health Sciences ,Yenepoya (Deemed to be University) 
Address  Department of Anaesthesia and OT Technology Yenepoya School of Allied Health Sciences Yenepoya (Deemed to be University) Deralakatte, Mangalore

Dakshina Kannada
KARNATAKA
575018
India 
Phone  9606411399  
Fax    
Email  shrawanacharya25@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Aejaz Ahamed Z  
Designation  Assistant Professor (Department of Anaesthesiology) 
Affiliation  Yenepoya Medical College ,Yenepoya(Deemed to be University) 
Address  Department of Anesthesiology Yenepoya Medical College Yenepoya(Deemed to be University) Deralakatte, Mangalore

Dakshina Kannada
KARNATAKA
575018
India 
Phone  8904062674  
Fax    
Email  aejazah@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Aejaz Ahamed Z  
Designation  Assistant Professor (Department of Anaesthesiology) 
Affiliation  Yenepoya Medical College ,Yenepoya(Deemed to be University) 
Address  Departement of Anaesthesiology Yenepoya Medical College Yenepoya(Deemed to be University) Deralakatte, Mangalore


KARNATAKA
575018
India 
Phone  8904062674  
Fax    
Email  aejazah@gmail.com  
 
Source of Monetary or Material Support  
Yenepoya Medical College Hospital, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Dakshina kannada, Karnataka, India-575018 
 
Primary Sponsor  
Name  Shrawan 
Address  Yenepoya School of Allied Health Sciences Yenepoya (Deemed to be University) Mudipu Campus, Near Surya Tech Park Kayargoli, Kurnad POst, Bantwal 574153 
Type of Sponsor  Other [Self] 
 
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 Aejaz Ahamed Z   Yenepoya Medical College Hospital   Preoperative ward and Operation theatre complex, 6th floor and 3rd floor, Department of Anaesthesiology, Deralakatte, Mangalore 575018
Dakshina Kannada
KARNATAKA 
8904062674

aejazah@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Yenepoya Ethics Committee -1  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Patients undergoing Elective surgery under general anaesthesia,With ASA physical status I and II. 
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  ASA (American Society of Anaesthesiologists) Physical status I and II
patients, aged between 18 - 60 years posted for elective surgery under
general anaesthesia  
 
ExclusionCriteria 
Details  Head and neck surgeries including malignancies and trauma.  
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
To systematically evaluate and compare the efficacy of Upper Lip Bite Test (ULBT) and Ratio of Height To Thyromental Distance (RHTMD) in predicting difficult endotracheal intubation with other airway assessments. efficacy will be assessed based on cormach and Lehne grading   Preoperative airway assessments will be done initially in the pre-operative ward which will predict the difficulty of intubation (5-6min)

The Anaesthesiologist will do intraoperatively Laryngoscopy to assess Cormach and Lehne grading(15min) 
 
Secondary Outcome  
Outcome  TimePoints 
To explore the efficacy of the Atlanto-occipital Joint Movement Test (AOJMT) in predicting difficult endotracheal intubation. the efficacy will be based on Cormack & Lehane grading  Preoperative airway assessments will be done initially in the pre-operative ward which will predict the difficulty of intubation (5-6min)

Intraoperatively Laryngoscopy will be done by the Anaesthesiologist to assess the cormack & lehane grading (15min) 
 
Target Sample Size   Total Sample Size="223"
Sample Size from India="223" 
Final Enrollment numbers achieved (Total)= "223"
Final Enrollment numbers achieved (India)="223" 
Phase of Trial   N/A 
Date of First Enrollment (India)   21/06/2024 
Date of Study Completion (India) 07/02/2025 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="10"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Completed 
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   In this study "PROSPECTIVE EVALUATION OF AIRWAY ASSESSMENT TESTS TO PREDICT DIFFICULT ENDOTRACHEAL INTUBATION IN ADULTS: OBSERVATIONAL STUDY " is a prospective observational study that aims to evaluate the Upper Lip Bite Test (ULBT) and Ratio of Height to Thyromental Distance (RHTMD) in comparison with various airway assessment tests for predicting difficult endotracheal intubation in adults undergoing general anaesthesia. This study will include 223 participants, and the data will be analyzed based on sensitivity, specificity, positive predictive value, and negative predictive value. The study’s primary objective is to assess the effectiveness of ULBT and RHTMD in predicting difficult endotracheal intubation. And secondary objective is to explore the efficacy of the Atlanto-occipital Joint Movement Test (AOJMT) in predicting difficult endotracheal intubation. Once the patient is shifted to the pre-operative ward, preoperative airway assessment tests such as inter-incisor gap (IIG), Mallampati grading (MPG), Head and Neck Movement (HNM), Horizontal Length of Mandible (HLM), Sternomental distance (SMD), Upper Lip Bite Test (ULBT), Ratio of Height to Thyromental Distance (RHTMD), Atlanto-occipital Joint Movement Test (AOJMT) and Thyromental Distance (TMD) are measured by Anaesthesiologist and noted. In the operating room, laryngoscopy will be done by a qualified and experienced anaesthesiologist, who was blinded to the results of the preoperative airway assessment, and Glottic visualization will be assessed and noted according to modified Cormack Lehane grade. 
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