FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2025/06/088917 [Registered on: 16/06/2025] Trial Registered Prospectively
Last Modified On: 10/08/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A prospective study to compare the efficacy of Volume controlled ventilation and Pressure controlled ventilation in preventing post operative complications in patients undergoing off pump coronary artery bypass grafting.  
Scientific Title of Study   A Prospective Randomised study to compare the efficacy of volume controlled ventilation and pressure support ventilation in patients undergoing coronary artery bypass grafting off pump surgeries.  
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 Kiran Muthu Rajah 
Designation  SENIOR RESIDENT 
Affiliation  Sri Ramachandra Institute of Higher Education and Research 
Address  87, 5th street, Dr Kothari nagar, Ramapuram, Chennai
Department of Cardiac anaesthesia, Sri Ramachandra Institute of Higher Education and Research, no.1, Mount Poonamallee road, Porur
Chennai
TAMIL NADU
600089
India 
Phone  9600001484  
Fax    
Email  kiranmuthurajah@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Ranjith B Karthekeyan 
Designation  Professor and Head of Department 
Affiliation  Sri Ramachandra Institute of Higher Education and Research 
Address  Department of Cardiac anaesthesia, Sri Ramachandra Institute of Higher Education and Research

Chennai
TAMIL NADU
600116
India 
Phone  9841136568  
Fax    
Email  ranjithkarthekeyan@sriramachandra.edu.in  
 
Details of Contact Person
Public Query
 
Name  Dr Ranjith B Karthekeyan 
Designation  Professor and Head of Department 
Affiliation  Sri Ramachandra Institute of Higher Education and Research 
Address  Department of Cardiac anaesthesia, Sri Ramachandra Institute of Higher Education and Research

Chennai
TAMIL NADU
600116
India 
Phone  9841136568  
Fax    
Email  ranjithkarthekeyan@sriramachandra.edu.in  
 
Source of Monetary or Material Support  
Dr.Kiran Muthu Rajah 6th floor,Sri Ramachandra Institute of Higher Education and Research, Sri Ramachandra nagar, Porur, Chennai-600116 
 
Primary Sponsor  
Name  Kiranmuthrajah 
Address  C-6,Sri Ramachandra Institute of Higher Education and Research, Sri Ramachandra nagar, Porur, Chennai-600116 
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 
DrKiran Muthu Rajah  Sri Ramachandra Institute of Higher Education and Research   6th floor, Udayar block, Sri Ramachandra Nagar, Mount Poonamallee road, Porur
Chennai
TAMIL NADU 
9600001484

kiranmuthurajah@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Sri Ramachandra Institute of Higher Education and Research INSTITUTIONAL RESEARCH ETHICS COMMITTEE   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: I229||Subsequent ST elevation (STEMI) myocardial infarction of unspecified site,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  To compare the efficacy of volume control ventilation and pressure support ventilation by comparing the post operative pulmonary complications in patients undergoing coronary artery bypass grafting off pump.   To compare the post operative pulmonary complications of both ventilatory modes and to assess the efficacy amongst them. 
Comparator Agent  To compare the post operative pulmonary complications during post operative day 0 / 1 / 2 in patients undergoing coronary artery bypass grafting off pump in both the modes of ventilation. (volume controlled ventilation and pressure controlled ventilation)  To assess - Atelectasis, Pulmonary Edema ,PaO2/FiO2 Ratio, EtCO2 ,Pneumothorax, Pleural effusion, Dense consolidation, Pulmonary edema ,Inspiratory efforts during post operative day 0 / 1 / 2 in patients undergoing coronary artery bypass grafting off pump with both volume controlled ventilation and pressure controlled ventilation modes. To assess the efficacy amongst both the modes of ventilation.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  90.00 Year(s)
Gender  Both 
Details  1. 18 years of age or older
2. Scheduled for elective cardiac surgery with general anesthesia, invasive mechanical ventilation, complete median sternotomy 
 
ExclusionCriteria 
Details  1. Patients were excluded in case of emergent or redo surgeries
2. Patients with history of COPD.
3. Patients with known pulmonary Hypertension
4. Patients with EF less than 40% in Echocardiography
5. Patients with significant history of smoking addiction
6. Body mass index more than 35 kg/ m2
7. Obstructive sleep apnea
8. Patient Refusal 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Pre-numbered or coded identical Containers 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Development of post-operative pulmonary complications:
(Post-extubation respiratory failure, Bronchospasm, Severe trachea–bronchial congestion,
Respiratory acidosis, Suspected or confirmed pneumonia, Pleural effusion, Radiological
atelectasis, acute respiratory distress syndrome, prolonged invasive ventilation associated
with hypoxemia) 
30minutes/60minutes/2hours/4hours/8hour/16hours/24hours/48hours/72hours 
 
Secondary Outcome  
Outcome  TimePoints 
Duration of ICU stay  At baseline 
 
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)   28/06/2025 
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="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
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 comparative study aimed to evaluate the efficacy of volume controlled ventilation versus pressure controlled ventilation modes during surgery in preventing postoperative pulmonary complications in patients undergoing coronary artery bypass grafting. patients scheduled for elective CABG were randomly assigned to receive either VCV or PVC intraoperatively. The objective of the study was to assess the incidence of post operative pulmonary complications such as atelectasis, pneumonia, hypoxaemia and prolonged ventilation in postoperative period. The study aimed to identify the ventilation strategy that offers superior pulmonary protection and better postoperative respiratory outcomes. in patients undergoing CABG. 
Close