Diagnosis of coronary artery fistulas by multidetector computed tomography

Phung Bao Ngoc1,, Nguyen Khoi Viet1, Hoang Van Hoa2, Nguyen Ngoc Trang2, Le Thuy Lien2, Vu Dang Luu3, Pham Minh Thong2
1 Bach Mai hospital
2 Bạch Mai Hospital
3 Bạch Mai hospital

Main Article Content

Abstract

Objective: Evaluate the characteristics of coronary artery fistulas (CAFs) by multidetector computed tomography (MDCT).
Material and methods: During 21 months (between January 2019 and September 2020), study on 31 patients were diagnosed with CAFs on MDCT at Radiology Centre of Bach Mai hospital, prospective descriptive study.
Result: We enrolled 31 patients (11 male, 20 female, mean age 56 years) with CAFs on MDCT. 18 patients had multiple fistulas (58,1%), 13 patients had single communication (41,9%). 6,5% originated from the right coronary, 35,5% arose from the left coronary artery system and 58,5% from both right and left coronary artery. 87,1% of fistulas drain to the right side of the circulation(74,2% drain to pulmonary artery). 1 patient (3,2%) had fistula drain to the left side of the circulation (bronchial artery). 3 patients (9,7%) had fistulas drain to both right and left side of the circulation (pulmonary artery and bronchial artery).
10 patients had large fistulas (32,3%), 21 patients had small fistulas (67,7%). 19 patients had aneurysm of fistulas (61,3%), most of them drain to pulmonary artery (73,7%). 38,7% of patients were diagnosed with CAFs by echocardiography (38,7%). 6 patients were examined by DSA: 2 patients were not detected origin of fistulas by DSA, 3 patients were not detected drainage of fistulas by DSA.
Conclusion: DSCT is a noninvasive and useful modality for diagnosis of CAFs

Article Details

References

1. Jae Jung Lim, Jung Im Jung, Bae Young Lee et al. Prevalence and Types of Coronary Artery Fistulas Detected With Coronary CT Angiography. AJR. 2014;203:237-243.
2. Lê Đức Nam, Nguyễn Quốc Dũng. Đánh giá vai trò của CLVT 256 dãy trong rò động mạch vành. Tạp Chí Học Việt Nam. 2019;479:14-17.
3. Zhou K, Kong L, Wang Y et al. Coronary artery fistula in adults: evaluation with dual-source CT coronary angiography. Br J Radiol 2015;88:20140754. Br J Radiol. 2015;88
4. Lê Anh Minh. Nghiên cứu đặc điểm lâm sàng, cận lâm sàng của rò động mạch vành và kết quả tức thời của phương pháp can thiệp rò động mạch vành qua da. Published online 2013.
5. Đào Sĩ Nghiệp. Tìm hiểu đặc điểm lâm sàng và cận lâm sàng trên bệnh nhân có rò động mạch vành kích thước nhỏ. Published online 2016.
6. Fehmi K,Nilgun IO,Omer A et al. Imaging of Coronary Artery Fistulas by Multidetector Computed Tomography: Is Multidetector Computed Tomography Sensitive? Clin Cardiol. 2008;31:41-47