Relationship Between Coronary CT Angiography Findings and Prognosis Of Patients Undergoing PCI

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-12-01

Study Completion Date

2026-12-31

Brief Summary

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Researchers at Cerrahpaşa Medical School in Istanbul are studying how a heart imaging test called coronary CT angiography can help improve care for people with coronary artery disease. This disease happens when fatty buildups, known as plaques, form in the arteries that supply blood to the heart. Over time, these plaques can limit blood flow and lead to serious problems like heart attacks. The goal of this research is to better understand which types of plaques may lead to worse outcomes, and how treatment choices-such as placing a stent or using medication-can affect a person's long-term heart health. This study will help doctors make better treatment decisions in the future. Some plaques are more dangerous than others, even when they don't cause major blockages. These are called high-risk or "vulnerable" plaques. Even though they may not narrow the artery much at first, they can still cause heart attacks in the future. Currently, doctors do not usually place stents in arteries unless the plaque causes a serious blockage. This is because stenting also carries risks, and it is not clear whether treating high-risk plaques early-before they cause problems-helps people live longer or feel better. This study hopes to find out whether certain types of plaques should be treated differently in the future. This study will include at least 789 adults who have already had coronary CT angiography as part of their regular care at Cerrahpaşa Medical School's cardiology clinic. These participants were treated either with a stent or with medication, depending on their medical needs. The decision to do the scan and how to treat the person was made by their doctor, following national and international medical guidelines. People who join the study do so voluntarily. They can choose to leave the study at any time without affecting their regular medical care. Participants will be followed for at least one year, starting from the day of their CT scan. They will return for check-ups at 3, 6, and 12 months. After the first year, they will continue to have yearly follow-up visits as part of routine care. At each visit, the study team will check symptoms, such as chest pain or shortness of breath; monitor health indicators, like cholesterol and blood sugar; and review any new heart procedures or treatments. Researchers will also review results from medical tests, such as blood tests, electrocardiograms (EKGs), heart ultrasounds (echocardiograms), repeat heart scans or procedures if done. If a participant has had a heart procedure done at another hospital, they will be asked to bring those records to their next appointment. This helps the research team get a full picture of each participant's heart health. The researchers will look at the features of the plaques seen in each participant's heart scan. They want to find out which types of plaques are more likely to lead to heart attacks or other serious problems. Participants will be divided into groups based on whether they received a stent or not. The researchers will compare outcomes between these groups to see if certain plaque types are more dangerous and whether stenting made a difference. The study will try to answer questions like: which plaque features are linked to future heart problems; do people with high-risk plaques do better with stents or with medication; can doctors use plaque features to decide who should get a stent? This research may help doctors better identify high-risk plaques and choose the right treatment for each person. The study does not involve any new, experimental, or unapproved treatments. All participants will receive medical care that follows well-established guidelines from groups like the European Society of Cardiology (ESC) and the American Heart Association (AHA). Participants are not asked to take new medications or undergo any tests or treatments that are not already part of their usual care. If new medical knowledge becomes available during the study that could affect treatment, participants will be informed and can choose whether to continue with the original plan or make changes. All personal and medical information will be kept confidential. The data will be stored securely in the hospital's system, and only the research team and authorised health officials will be allowed to access it. Participants' names and other identifying information will not appear in any published reports. If a participant wants to know their results or the overall results of the study, they can ask for a report. Even if someone leaves the study or stops coming to the clinic, the information already collected may still be used in the research unless the participant requests otherwise. There is no cost to participate in this study. The study will not affect your health insurance or create any additional charges. All medical care will continue to be covered by Turkey's national health system or your existing insurance.

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Detailed Description

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Conditions

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Coronary Artery Disease

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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High risk plaque features positive, PCI positive

The people that has at least one lesion in their coronary arteries, carrying at least one high-risk plaque feature, derived from CCTA and treated with PCI of that lesion

No interventions assigned to this group

High risk plaque features positive, PCI negative

The people that has at least one lesion in their coronary arteries, carrying at least one high-risk plaque feature, derived from CCTA and not treated with PCI of that lesion

No interventions assigned to this group

High-risk plaque features negative, PCI positive

The people that has no lesion in their coronary arteries, carrying at least one high-risk plaque feature, derived from CCTA and treated with PCI of any lesion

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. Be over 18 years of age.
2. Have presented to the Cardiology Department of Cerrahpaşa Medical Faculty with symptoms or findings suggestive of stable coronary artery disease and undergone a coronary CT angiography based on clinical evaluation.
3. In addition, meet at least one of the following conditions:

* The coronary CT angiography showed at least one lesion with at least one high-risk plaque feature, and based on the 2018 European Society of Cardiology (ESC) Guidelines on Myocardial Revascularisation and the presence of CAD-RADS 1 or 2 lesions, no revascularisation was performed.
* The coronary CT angiography revealed a CAD-RADS 3 or higher lesion without high-risk plaque features, and revascularisation was performed on the target lesion, in accordance with the 2018 European Society of Cardiology (ESC) Guidelines on Myocardial Revascularisation.
* The coronary CT angiography revealed a CAD-RADS 3 or higher lesion with high-risk plaque features, and revascularisation was performed on the target lesion, in accordance with the 2018 European Society of Cardiology (ESC) Guidelines on Myocardial Revascularisation.