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CTRI Number  CTRI/2025/03/083752 [Registered on: 28/03/2025] Trial Registered Prospectively
Last Modified On: 27/03/2025
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   A clinical study for predicting difficult airway in neurosurgical patients using ultrasonographic parameters 
Scientific Title of Study   Assessment pf ultrasonographic parameters as preoperative predictor of difficult intubation in neurosurgical patients: A Prospective 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  Dr Unnikrishnan P 
Designation  Additional Professor 
Affiliation  Sree Chitra Tirunal Institute For Medical Sciences & Technology 
Address  Department of Neuroanaesthesia Room No 3116, C Block, SCTIMST

Thiruvananthapuram
KERALA
695011
India 
Phone  9447662321  
Fax    
Email  drunniz@sctimst.ac.in  
 
Details of Contact Person
Scientific Query
 
Name  Chandini Sunillal 
Designation  Senior resident 
Affiliation  Sree Chitra Tirunal Institute For Medical Sciences and Technology 
Address  DEPARTMENRT OF NEUROANAESTHESIA ROOM NO 3402, C BLOCK, SCTIMST

Thiruvananthapuram
KERALA
695011
India 
Phone  9447904194  
Fax    
Email  drchandinisunil@sctimst.ac.in  
 
Details of Contact Person
Public Query
 
Name  Unnikrishnan P 
Designation  Additional Professor 
Affiliation  Sree Chitra Tirunal Institute For Medical Sciences and Technology 
Address  Department of Neuroanaesthesia Room no 3116, C Block, SCTIMST

Thiruvananthapuram
KERALA
695011
India 
Phone  9447662321  
Fax    
Email  drunniz@sctimst.ac.in  
 
Source of Monetary or Material Support  
Sree Chitra Tirunal Institute For Medical Sciences and Technology Thiruvananthapuram Kerala India 
 
Primary Sponsor  
Name  Academic divisionSree Chitra Tirunal Institute for Medical Sciences and Technology 
Address  Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum,Kerala ,India-695011 
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 
DR UNNIKRISHNAN P  Sree Chitra Tirunal Institute for Medical Sciences and Technology  Neurosurgery OT , 4th floor,Sree Chitra Tirunal Institute for Medical Sciences and Technology
Thiruvananthapuram
KERALA 
9447662321

drunniz@sctimst.ac.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
sree chitra Thirunal institute for medical sciences and technology, Trivandrum,695011 KERALA INDIA, INSTITUTIONAL ETHICS COMMITTEE  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: Z018||Encounter for other specified special examinations,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  12.00 Year(s)
Age To  70.00 Year(s)
Gender  Both 
Details  Consenting adult patients undergoing neurosurgical procedures at SCTIMST
Age 12 years and above
Both gender
ASA (American Society of Anaesthesiologists) classes 1,2 and 3
GCS 15/15 before the surgery. 
 
ExclusionCriteria 
Details  Patient refusal
Age less than 12 years
Emergency surgery
Patients with cervical spine instability • ASA class 4,5 patients
Pregnant and lactating mothers 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
The primary aim of our study is to assess the correlation between ultrasound parameters and CL grading for predicting difficult intubation preoperatively in neurosurgical patients.  21 months for recruitment
3 months for data analysis and compilation. 
 
Secondary Outcome  
Outcome  TimePoints 
To assess the correlation of ultrasound parameters with clinical parameters and CL grading in predicting difficult airway preoperatively in neurosurgical patients.  24 months 
 
Target Sample Size   Total Sample Size="130"
Sample Size from India="130" 
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)   15/04/2025 
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)  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  

We plan to conduct a prospective observational study to assess the correlation between ultrasound parameters and CL (Cormack Lehane)grading for predicting difficult intubation preoperatively in neurosurgical patients.Our secondary objective is to assess the correlation of ultrasound parameters with clinical parameters and CL grading in predicting difficult airway preoperatively in neurosurgical patients.

 
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