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  • Title: Clinics in diagnostic imaging (155). Incidental PDA with secondary pulmonary arterial hypertension.
    Author: Mak MS, Ong CC, Tay EL, Teo LL.
    Journal: Singapore Med J; 2014 Sep; 55(9):462-6; quiz 467. PubMed ID: 25273929.
    Abstract:
    We report the case of a 70-year-old man with an asymptomatic large patent ductus arteriosus (PDA) incidentally detected on triple-rule-out computed tomography (CT). CT clearly demonstrated a vascular structure connecting the descending thoracic aorta to the roof of the proximal left pulmonary artery, consistent with a PDA. Secondary pulmonary arterial hypertension was also evident on CT. The patient was eventually diagnosed with acute coronary syndrome and was successfully treated with coronary artery bypass graft surgery and concomitant patch closure of the PDA. This article aims to outline the imaging features of PDA and highlight the information provided by CT, which is crucial to treatment planning. The pathophysiology, clinical manifestations and closure options of PDA are also briefly discussed.
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