Summary: | The unilateral absence of pulmonary artery
(UAPA) is a rare congenital cardiovascular malformation, which is asymptomatic
and easy to be ignored in early stage. A large number of complications may occur
in the later stage. Therefore, early diagnosis and treatment is of great
significance. The imaging data of 49 patients with UAPA discovered and confirmed
clinically by the echocardiography in our hospital are analyzed. The results show
that left pulmonary artery absence is more common (55%) and most of them are
associated with other cardiovascular malformations (92%). Atrial septal defect
and patent foramen ovale were most common in 56%. In which the absence of
isolated pulmonary artery was 8% (4/49), and the absence of right pulmonary
artery was 75% (3/4). Especially in the patients with tetralogy of Fallot, 77%
(5/9) of them miss the diagnosis of UAPA. This suggests that doctors and
sonographers should pay attention to the development of pulmonary artery
bifurcation and left and right branches in multi-section, and strengthen the
scanning of short axis section of high large artery.
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