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Myocardial Infarction and Functional Outcome Assessment in Pigs
Published on: April 25, 2014
Imaging characteristics and ECG distribution of coronary fistulas: The first large-scale study
Renhui Cai1, Juan Xu1, Chaoqun Yan2
1Department of Radiology, Asia Heart Hospital, No.753 Jinghan Road, Hankou District, Wuhan 430022, PR China.
Insights
Coronary artery fistula (CAF) frequently causes abnormal electrocardiograms (ECG), particularly in coronary-cameral fistula (CCF) cases. Surgical intervention can often restore normal ECG findings in these patients.
Area of Science:
- Cardiology
- Medical Imaging
- Clinical Diagnostics
Background:
- Coronary artery fistula (CAF) is associated with a high incidence of abnormal electrocardiograms (ECG), yet detailed correlation studies are limited.
- Existing literature primarily consists of individual case reports on the relationship between CAF and arrhythmias.
Purpose of the Study:
- To investigate the incidence and distribution of abnormal ECG findings in patients diagnosed with CAF.
- To differentiate ECG characteristics between coronary-cameral fistula (CCF) and coronary-pulmonary artery fistula (CPAF).
Main Methods:
- Retrospective analysis of 284 patients with CAF (excluding coronary atherosclerosis) from a cohort of 144,448 undergoing coronary computerized tomography angiography (CTA).
- Comparison of ECG and imaging characteristics between the CPAF (221 cases) and CCF (63 cases) groups.
- Evaluation of ECG changes post-surgical intervention.
Main Results:
- Approximately 72.9% of patients with CAF exhibited abnormal ECG findings.
- Significant differences in ECG block, myocardial ischemia, and structural changes were observed between CPAF and CCF groups (P < 0.05).
- CCF demonstrated a higher propensity for causing conduction blocks, ischemia, and structural ECG abnormalities. Post-surgery, 52% of 53 treated patients showed ECG improvement.
Conclusions:
- Coronary-cameral fistula (CCF) is frequently associated with abnormal ECG findings, including conduction blocks, myocardial ischemia, and structural changes.
- Surgical treatment offers a potential for normalizing ECG abnormalities in patients with CCF.
Background:
The proportion of abnormal electrocardiogra (ECG) in patients with coronary artery fistula (CAF) is relatively high, but the correlation between CAF and arrhythmia is mostly reported in individual case studies. This paper analyzes the correlation between imaging features and ECG features.
Objective:
This paper aims to analyze the incidence and distribution characteristics of abnormal ECG in patients with CAF and further explore the difference in ECG characteristics between coronary-cameral fistula (CCF) and coronary-pulmonary artery fistula (CPAF).
Method:
A total of 144,448 patients who underwent coronary computerized tomography angiography (CTA) examination from January 2016 to December 2022 were included in this study, and 284 patients with CAF (excluding coronary atherosclerosis) were selected for analysis of their ECG and image characteristics. And divided them into the CPAF (221 cases) and CCF (63 cases) groups, the differences in ECG between the two groups was compared. The changes in the ECG after the operation were analyzed.
Results:
The incidence of abnormal ECG in patients with CAF was approximately 72.9%. There were significant differences in the proportion of ECG block, myocardial ischemia and structural ECG changes between the CPAF group and CCF group (P < 0.05). CCF was more likely to cause conduction block and ischemic and structural ECG changes. A total of 53 patients with CAF underwent surgical treatment, 28 patients with improved ECG (52%).
Conclusion:
CCF especially CCF patients often have abnormal ECG findings such as conduction block, myocardial ischemia, and structural changes, which can often be restored to normal through surgery.
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