Cardiac CT Evaluation of EAT in AF vs. Non-AF Subjects

ConditionsAtrial Fibrillation (AF)CT

Trial statusNot yet recruiting

Trial phaseNot listed

Trial typeObservational

Biological sexAll

Age18+

Sponsorxiaoya wang

About this trial

The goal of this cross-sectional study is to explore the relationship between atrial structural characteristics (such as epicardial adipose tissue infiltration and atrial size) and atrial fibrillation (AF), as well as the differences in these characteristics among different AF subtypes. It will also clarify the independent association between pericardial fat distribution and AF (and its subtypes) after excluding confounding factors.

The main questions it aims to answer are:

* What are the differences in epicardial adipose tissue volume and atrial size among patients with sinus rhythm, paroxysmal AF, and persistent AF? * Is pericardial fat distribution independently associated with AF and its subtypes after adjusting for confounding factors such as age, hypertension, and left atrial enlargement?

Researchers will enroll patients who undergo coronary CTA or left atrial CTA at The Second Affiliated Hospital of Zhejiang University School of Medicine, and match and divide them into three groups (sinus rhythm group, paroxysmal AF group, and persistent AF group) based on BMI and other factors. They will compare the differences in pericardial fat distribution and baseline characteristics among the three groups and analyze the independent association between pericardial fat and AF.

Participants will:

* Provide relevant clinical baseline data and CTA examination results * Complete the collection of demographic information, medical history, and laboratory test data

The study duration is 6 months, starting from the date of ethical approval, with an expected end date of June 2026. A total of 600-900 participants (200-300 per group) will be enrolled to ensure the reliability and clinical applicability of the research conclusions.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Patients who undergo coronary CTA or left atrial CTA examination at The Second Affiliated Hospital of Zhejiang University School of Medicine;

Aged 18 years or older

Cardiac rhythm status is confirmed as sinus rhythm, paroxysmal atrial fibrillation, or persistent atrial fibrillation;

Willing to provide clinical baseline data and allow access to CTA examination results;

Disqualifiers

Patients with incomplete clinical baseline data or unreadable CTA images;

Aged less than 18 years

Patients who refuse to participate in the study or cannot cooperate with data collection;

Other situations judged by the researchers to be unsuitable for inclusion in the study.

Trial population

The study population consists of adult patients aged 18 years or older who undergo coronary CTA or left atrial CTA examination at The Second Affiliated Hospital of Zhejiang University School of Medicine. Participants will be categorized into three cohorts according to their confirmed cardiac rhythm status: sinus rhythm, paroxysmal atrial fibrillation, or persistent atrial fibrillation. All enrolled individuals must be willing to provide clinical baseline data and allow access to their CTA examination results, and be able to understand and cooperate with the study's data collection process. Patients under 18 years of age, those with incomplete clinical data or unreadable CTA images, and those who refuse to participate or cannot cooperate will be excluded from the study. The total planned sample size is 600-900 participants, with 200-300 participants in each cohort.

Trial design

Design model

Case-control

Time perspective

Cross-sectional

Treatments tested in this trial

Not listed

Trial groups

600 Participants

are grouped into 3 trial groups

Group A: Paroxysmal AF

Group B: Persistent AF

Group C: Sinus rhythm

Trial outcomes

Primary outcomes

The difference in epicardial adipose tissue distribution among the three cohorts

Time frame

At the time of enrollment

Locations

This trial has no locations.

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

xiaoya wang

Lead sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University

Sponsor institution

University of Auckland, New Zealand

Collaborator

Source ClinicalTrials.gov

This trial is not recruiting at the moment. You can still explore other options: