Pulmonary arteriovenous fistula diagnosed by transthoracic contrast echocardiography: A case report. 2021

Jing Wang, and Jian Zhang, and Anlong Wang, and Ceng Wang
Department of Medical Ultrasound, Zhejiang Provincial People's Hospital, People's Hospital of HangZhou Medical College, Hangzhou, China.

We report the case of a 38-year-old woman who was admitted due to right limb numbness. A right-to-left shunt (RLS) was detected by transthoracic contrast echocardiography (cTTE), and microbubbles appeared in the left heart seven cardiac cycles after opacification of the right heart, suggesting pulmonary arteriovenous fistula. This was supported by computed tomography angiography. She underwent thoracoscopic partial right lower pneumonectomy and recovered after surgery. At 1 year follow-up, she had no relapse of stroke or cerebral infarction. This case shows the typical signs of pulmonary arteriovenous fistula on contrast-enhanced trans-thoracic echocardiography, which allowed an accurate and rapid diagnosis.

UI MeSH Term Description Entries
D011651 Pulmonary Artery The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs. Arteries, Pulmonary,Artery, Pulmonary,Pulmonary Arteries
D011667 Pulmonary Veins The veins that return the oxygenated blood from the lungs to the left atrium of the heart. Pulmonary Vein,Vein, Pulmonary,Veins, Pulmonary
D004452 Echocardiography Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic. Echocardiography, Contrast,Echocardiography, Cross-Sectional,Echocardiography, M-Mode,Echocardiography, Transthoracic,Echocardiography, Two-Dimensional,Transthoracic Echocardiography,2-D Echocardiography,2D Echocardiography,Contrast Echocardiography,Cross-Sectional Echocardiography,Echocardiography, 2-D,Echocardiography, 2D,M-Mode Echocardiography,Two-Dimensional Echocardiography,2 D Echocardiography,Cross Sectional Echocardiography,Echocardiography, 2 D,Echocardiography, Cross Sectional,Echocardiography, M Mode,Echocardiography, Two Dimensional,M Mode Echocardiography,Two Dimensional Echocardiography
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000072226 Computed Tomography Angiography A non-invasive method that uses a CT scanner for capturing images of blood vessels and tissues. A CONTRAST MATERIAL is injected, which helps produce detailed images that aid in diagnosing VASCULAR DISEASES. Angiography, CT,Angiography, Computed Tomography,CT Angiography,Angiographies, CT,Angiographies, Computed Tomography,CT Angiographies,Computed Tomography Angiographies,Tomography Angiographies, Computed,Tomography Angiography, Computed
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001164 Arteriovenous Fistula An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE. Aneurysm, Arteriovenous,Arteriovenous Aneurysm,Arteriovenous Fistulas,Fistula, Arteriovenous,Fistulas, Arteriovenous
D045423 Microbubbles Small encapsulated gas bubbles (diameters of micrometers) that can be used as CONTRAST MEDIA, and in other diagnostic and therapeutic applications. Upon exposure to sufficiently intense ultrasound, microbubbles will cavitate, rupture, disappear, release gas content. Such characteristics of the microbubbles can be used to enhance diagnostic tests, dissolve blood clots, and deliver drugs or genes for therapy. Colloidal Gas Aphrons,Aphron, Colloidal Gas,Aphrons, Colloidal Gas,Colloidal Gas Aphron,Gas Aphron, Colloidal,Gas Aphrons, Colloidal,Microbubble

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