Relationship Between Frontal QRS-T Angle and Collateral Circulation in Coronary Artery Chronic To… (NCT07743437) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Relationship Between Frontal QRS-T Angle and Collateral Circulation in Coronary Artery Chronic Total Occlusion
Egypt100 participantsStarted 2026-08
Plain-language summary
• Aim of the work: To examine the relationship between collateral circulation and the frontal QRS-T angle in patients with chronic total occlusion (CTO)
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Patients undergoing diagnostic coronary angiography due to stable angina persisting for a minimum duration of three months.
* Patients diagnosed with total occlusion in at least one coronary artery, assessed to have chronic total occlusion (CTO) based on clinical and angiographic findings.
Exclusion Criteria:
* Patients presenting with malignancies, atrial fibrillation, connective tissue disorders, hepatic failure, or renal failure.
* A documented history of cardiac pacemaker implantation, prior bypass surgeries, or surgical valve replacements.
* Congenital heart anomalies.
* Patients receiving pharmacological interventions that affect ventricular repolarization (other than beta-adrenergic antagonists).
* Individuals exhibiting abnormal electrolyte levels at the time of admission.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
correlation between frontal QRS-T angle and collateral circulation in CTO patients
Timeframe: baseline ( at the time of the diagnosis )