Accidente isquémico transitorio como forma de presentación de fístula arteriovenosa pulmonar

Transient ischemic attack induced by pulmonary arteriovenous fistula in a child: A case report

“…It is recommended that these examinations be carried out immediately after onset of stroke[ 7 ]. A previous report showed that the prevalence of PAVF is 0.026%[ 8 ], and TIA is a clinical manifestation of PAVF in up to 20% of cases[ 1 ]. At present, it is believed that the risk factors for cerebral ischemic stroke in patients with PAVF are as follows: (1) Feeding artery diameter > 3 mm; and (2) existence of multiple PAV malformations[ 9 ].…”

“…Espejo-Herrero et al [ 1 ] reported a patient with TIA presenting with a short-term (30 min) right limb paralysis, with subsequent pulmonary arteriography showing a PAVF. Pulmonary digital subtraction angiography (DSA) is the gold standard for the diagnosis of PAVF, which can determine fistula size, feeding artery, draining vein, and other conditions[ 10 ].…”

“…Cases of cerebral ischemic stroke induced by pulmonary arteriovenous fistula (PAVF) are mostly reported in adults, and are largely attributed to paradoxical cerebral embolism (PCE)[ 1 - 5 ]. Due to congenital or acquired arteriovenous communications, PCE can be caused by emboli transferring from a vein to an artery, or transferring from the right heart system to the left heart system.…”