einstein (São Paulo). 19/Dec/2023;21:eAI0534.
Stenosis of the left pulmonary veins after atrial fibrillation catheter ablation
DOI: 10.31744/einstein_journal/2023AI0534
A 55-year-old male patient presented to the emergency department with ventilatory-dependent chest pain, 5 months after undergoing radiofrequency ablation for atrial fibrillation. Upon initial assessment, the patient exhibited an elevated D-dimer level of 1122ng/mL. Consequently, a computed tomography pulmonary angiogram (CTPA) was requested to investigate because of the possibility of a pulmonary thromboembolism. The CTPA ( ) revealed a focal reduction in the caliber of both the left upper and lower pulmonary veins ostia. Additionally, occlusion of the pulmonary venous branches upstream of the stenotic point was observed. The corresponding segmental pulmonary hypoperfusion within the territory drained by the stenosed veins was clearly illustrated in the iodine map images.
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