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Heart performance in two conditions: Blocked arteries vs slow blood flow

Comparison of myocardial strain between obstructive epicardial coronaries and non- obstructive epicardial coronaries with slow flow - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2026/04/109126
Enrollment
126
Registered
2026-04-22
Start date
Unknown
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: I208- Other forms of angina pectoris

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil

Sponsors

Manipal Academy of Higher Education
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: A.Obstructive Coronary Artery Disease: 1. Age range - 18 to 75 years, either gender, 2. Luminal diameter stenosis of atleast more than or equal to 70% in a minimum of one major coronary artery(LAD/LCx/RCA), 3. Preserved LV ejection fraction (LV EF-5O %) with no RWMA, 4.Able and prepared to give written informed consent B.Coronary slow flow phenomenon: 1. Age range - 18 to 75 years, either gender, 2.No significant epicardial stenosis ( less than 50 % narrowing)in all major coronary arteries with delayed distal vessel opacification(Grade 2 TIMI flow) and with increased TIMI frame count(more than 27 frames), 3. Preserved LV ejection fraction (LV EF-50 %) with no RWMA, 4.Able and prepared to give written informed consent

Exclusion criteria

Exclusion criteria: 1.Past history of PCI/CABG/or any cardiac surgery, 2.Significant valvular heart disease ( more severe than mild stenosis or regurgitation)or prosthetic valve, 3.Cardiac rhythm abnormalities that limit STE accuracy (AF/flutter,frequent PVCs,RBBB or LBBB,paced rhythm), 4.History of congenital heart defect, 5.Uncontrolled HTN (despite treatment,systolic BP more than or equal to 180mmHg or diastolic BP more than or equal to 110mmHg)during the time of echo, 6.Renal failure or hepatic failure, 7.Poor acoustic window or suboptimal echocardiographic image quality.

Design outcomes

Primary

MeasureTime frame
To compare GLS in patients with obstructive coronary artery disease and the coronary slow phenomenon.Timepoint: Baseline

Secondary

MeasureTime frame
To find an association between coronary angiographic findings (degree of stenosis, TIMI frame count) and strain parameters.Timepoint: Baseline

Countries

India

Contacts

Public ContactDr Jyothi Samanth

Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal

jyothi@manipal.edu9964586823

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: May 1, 2026