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CTRI Number  CTRI/2024/03/064822 [Registered on: 27/03/2024] Trial Registered Prospectively
Last Modified On: 07/04/2025
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Case Control Study 
Study Design  Other 
Public Title of Study   Evaluation of co-occurrence of autonomic dysfunction in patients with transient loss of consciousness. 
Scientific Title of Study   Assessment of coexistence of autonomic dysfunction in patients with syncope. 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Shivani Rao 
Designation  Post graduate student 
Affiliation  Manipal College of Health Professions 
Address  Room no 212, 2nd floor, department of Cardiovascular Technology, MCHP, MAHE Manipal

Udupi
KARNATAKA
576104
India 
Phone  9403985501  
Fax    
Email  shivani3.mchpmpl2023@learner.manipal.edu  
 
Details of Contact Person
Scientific Query
 
Name  Dr Mukund A Prabhu 
Designation  Associate Professor  
Affiliation  Kasturba Medical College, Manipal 
Address  Department of Cardiology, KMC Manipal

Udupi
KARNATAKA
576104
India 
Phone  9895137146  
Fax    
Email  mukundaprabhu@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Mukund A Prabhu 
Designation  Associate Professor  
Affiliation  Kasturba Medical College, Manipal 
Address  Department of Cardiology, KMC Manipal

Udupi
KARNATAKA
576104
India 
Phone  9895137146  
Fax    
Email  mukundaprabhu@gmail.com  
 
Source of Monetary or Material Support  
Department of Cardiology, Kasturba Medical College, Manipal Academy of Higher Education 
 
Primary Sponsor  
Name  Kasturba Medical College, Manipal Academy of Higher Education, Manipal 
Address  Kasturba Medical College and Hospital, Tiger circle road, Madhava Nagar, Manipal Udupi, Karnataka, PIN- 576104 
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 Mukund A Prabhu  Kasturba Hospital, Manipal  HUTT test room, Cardiac ICU, 2nd floor, Kasturba Medical College, Manipal Academy of Higher Education
Udupi
KARNATAKA 
9895137146

mukundaprabhu@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Kasturba Medical College and Kasturba Hospital Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: R55||Syncope and collapse,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  80.00 Year(s)
Gender  Both 
Details  participants with syncope above the age of 18 years 
 
ExclusionCriteria 
Details  1. Participants who present with postural orthostatic tachycardia syndrome
2. Participants with cardiovascular diseases such as:
-Arrhythmias.
-Ischemic heart disease (IHD).
-Cardiomyopathies.
-Valvular heart diseases (VHD).
-Congenital heart diseases (CHD).
- Pericarditis
-Pacemaker implantation.
-Cardiac tumors or thrombus.
3. Pregnant women
4. participants with poor echo window.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
LVOT VTI
Cardiac Output
Cardiac Index
Stroke volume index
Left ventricular stroke work index
Myocardial performance index  
All outcomes at baseline, syncope and recovery stages. 
 
Secondary Outcome  
Outcome  TimePoints 
nil  nil 
 
Target Sample Size   Total Sample Size="34"
Sample Size from India="34" 
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)   02/04/2024 
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)   Closed to Recruitment of Participants 
Recruitment Status of Trial (India)  Closed to Recruitment of Participants 
Publication Details
Modification(s)  
N/A 
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary   This study will be conducted after Institutional Research Committee and Institutional Ethics Committee approval and CTRI registration. Participants satisfying the inclusion criteria will be carefully chosen for the study. Participants with syncope referral for Head Up Tilt Table Test will be undergoing electrocardiogram (ECG) and echocardiography screening test for cardiac evaluation. Details pertaining to the need of the test will be explained to the participant and written informed consent will be taken for the same. Participants with syncope and no known cardiovascular disease will undergo Head Up Tilt Table Test and autonomic function testing. Autonomic function test will be performed using heart rate variability as per standard guidelines by 1996 Taskforce statement using time and frequency domain measures and the Italian protocol will be followed for the HUTT test. Various echocardiographic parameters will be recorded and stored at every stage of the procedure of head up tilt table test. 2D echocardiography will be used for obtaining standard views like (PLAX, A4C, A5C) and PW Doppler for LVOT VTI as a part of routine evaluation. 
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