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CTRI Number  CTRI/2019/06/019488 [Registered on: 03/06/2019] Trial Registered Prospectively
Last Modified On: 10/07/2020
Post Graduate Thesis  No 
Type of Trial  Observational 
Type of Study   Device Validation 
Study Design  Other 
Public Title of Study   Association of right heart pressure values and/or ECHO readings with respiratory movements in patients undergoing cardiac surgery 
Scientific Title of Study   Correlation of Swan-Ganz catheter readings and/or Transesophageal Echocardiogram (TEE) with Barocardiogram (BCG) in Perioperative Patients 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
CRD-02-1467 Rev. 01, version 1.0 dated 6th March 2019  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Julius Punnen 
Designation  Consultant Cardiothoracic Surgeon 
Affiliation  Narayana Hrudayalaya Ltd 
Address  # 258/A, Bommasandra Industrial Area, Anekal Taluk

Bangalore Rural
KARNATAKA
560099
India 
Phone  9980072785  
Fax    
Email  julius.punnen.dr@narayanahealth.org  
 
Details of Contact Person
Scientific Query
 
Name  Dr Julius Punnen 
Designation  Consultant Cardiothoracic Surgeon 
Affiliation  Narayana Hrudayalaya Ltd 
Address  # 258/A, Bommasandra Industrial Area, Anekal Taluk

Bangalore Rural
KARNATAKA
560099
India 
Phone  9980072785  
Fax    
Email  julius.punnen.dr@narayanahealth.org  
 
Details of Contact Person
Public Query
 
Name  Dr Alben Sigamani 
Designation  Group Head - Clinical Reserach 
Affiliation  Narayana Hrudayalaya Ltd 
Address  # 258/A, Bommasandra Industrial Area, Anekal Taluk

Bangalore Rural
KARNATAKA
560099
India 
Phone  8884431444  
Fax    
Email  alben.sigamani.dr@narayanahealth.org  
 
Source of Monetary or Material Support  
Respirix, Inc. 101 Mississippi Street San Francisco, CA 94107 Phone: 415-926-8616 
 
Primary Sponsor  
Name  Respirix Inc 
Address  101 Mississippi Street San Francisco, CA 94107, Phone: 415-926-8616 
Type of Sponsor  Other [Company ] 
 
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 Julius Punnen  Narayana Institute of Cardiac Sciences  Narayana Institute of cardiac sciences, a unit of Narayana Hrudayalaya Ltd, #258/A, Bommasandra Industrial Area, Anekal Taluk
Bangalore Rural
KARNATAKA 
9980072785

julius.punnen.dr@narayanahealth.org 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Narayana Health Medical Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
Comparator Agent  Nil  Nil 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  1.Patient must ≥ 18 years of age
2.Scheduled for either: Cardiac valve replacement and/or repair (surgical or transcatheter)
AND/OR Coronary artery bypass grafting (CABG)
3.Patient will receive Swan Ganz Catheter and/or intraoperative Transesophageal Echocardiogram
4. Able to provide informed consent 
 
ExclusionCriteria 
Details  1. Subjects who, at the principal investigator’s determination, would not tolerate a 10 second ventilator pause.
2. Subjects who, at the principal investigator’s determination, would not be appropriate for this study. 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
To identify, and, if possible, validate any observed relationships between BCG and TEE and/or Swan-Ganz catheter
measurements. 
1. One measurement before the chest is opened
2. One measurement with open chest
3.One measurement before closure of chest
4. One measurement after chest closure 
 
Secondary Outcome  
Outcome  TimePoints 
Nil  Nil 
 
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)   03/06/2019 
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="0"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   None 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary  
The Cardiospire device is a non-invasive home-use device that has the ability to detect minor, cyclic waveforms caused by cardiac pulses, or cardiogenic oscillations (COS) in the bulk pressure and flow measurements of expiration. The COS waveform is caused by blood, after being ejected from the right ventricle, pulsing through the pulmonary vasculature, which cyclically expands/contracts against the lung tissue and causes a flow/pressure pulsation in air within the airway. Accordingly, features of the COS waveform provide information about cardiac and pulmonary function. Measurements of these COS waveforms from the patient airway have significant potential to diagnose disorders of the cardiovascular and respiratory systems; we refer to these COS recordings as barocardiogram (BCG).

In a previous study we monitored BCG in post-operative cardiac surgery patients by monitoring pressure in the endotracheal tube during a short pause in ventilation and demonstrated that the BCG is both (1) highly repeatable and (2) responsive to pre-load dependent patients.

In this study, we aim to evaluate and quantify the relationships between BCG and parameters determined using Swan-Ganz catheters and/or TEE in cardiac surgery patients.
 
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