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Query: UMLS:C0038454 (stroke)
 147,016 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We report a rare case of recurrent brain abscess associated with congenital pulmonary arteriovenous fistula. A 52-year-old man was admitted to our hospital in October, 1999 because of a sudden stroke-like onset of right hemiparesis, right hemiparesthesia, dysarthria and sensory aphasia. He had a history of previous brain abscess in the right cerebellar hemisphere. It had been removed in 1991. CT scan at the time of the current admission disclosed a low-density area in the left parietal region. The mass was ring-enhanced after injection of contrast medium. On MRI the mass lesion was depicted as low-intensity on T1-weighted image and high-intensity on T2-weighted image. The mass was ring-enhanced after administration of Gd-DTPA. In spite of conservative treatment the size of the abscess increased considerably with marked surrounding edema. The brain abscess was successfully treated with aspiration and drainage, and the residual mass was resected. The patient also had a history of arteriovenous fistula in the lower lobe of his right lung. This had been excised in 1965. However, he had no signs, symptoms or family histories of hereditary hemorrhagic telangiectasia (Rendu-Osler-Weber disease). Contrast enhanced CT scan of the chest showed nodular lesions connected to vascular shadows in the right lower lung field. Pulmonary angiograms also revealed multiple arteriovenous fistulas in the lower lobe of the right lung. He was not dyspneic or cyanotic, but his hypoxia, polycythemia, and recurrent brain abscess were thought to be caused by pulmonary arteriovenous fistula. The fistulas were embolized with coils via a percutaneous catheter. Pulmonary arteriovenous fistula should be treated aggressively either by surgery and/or by coil embolization in order to prevent the complication of brain abscess.
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PMID:[Recurrent brain abscess associated with congenital pulmonary arteriovenous fistula: a case report]. 1497 25

Pulmonary arteriovenous fistula (PAVF) is a venous malformation that permits right to left shunting of blood, bypassing the pulmonary capillary bed. Often PAVFs are seen in association with hereditary conditions. On the other hand, isolated PAVFs are rare and asymptomatic. There have been few reports of isolated PAVF related complications. A patient was referred to us with dysarthria and diplopia and history of surgically-treated PAVF. Further evaluations revealed a stroke in thalamic region. We found an open PAVF in a case of thalamic stroke.
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PMID:Stroke in a patient with pulmonary arteriovenous fistula: A case report study. 2452 May 51

Pulmonary arteriovenous fistula (PAVF) are rare malformations that may cause serious complications such as paradoxical embolism, stroke, pulmonary hemorrhage and hemoptysis. Accompanying cardiac malformations such as aortic coarctation were not reported previously. Here we present a case of complex PAVF associated with aortic coarctation. The patient was treated successfully by transcatheter embolization of PAVF with amplatzer vascular plug I and II and implantation of a covered CP stent for coarctation at the same session.
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PMID:Embolization of a complex pulmonary arteriovenous fistula and coarctation treatment with covered stent at the same session. 2718 9

Pulmonary arteriovenous fistula (PAVF), a vessel malformation connecting the pulmonary circulation to the systemic circulation while bypassing the pulmonary capillaries, can cause paradoxical cerebral infarction. It is often associated with hereditary hemorrhagic telangiectasia (HHT), a genetic disease characterized by multiple dermal, mucosal, and visceral telangiectasia causing recurrent bleeding. Paradoxical cerebral embolism caused by PAVF without HHT is rare. Here, we report a patient with isolated PAVF who experienced an ischemic stroke caused by a paradoxical embolism from deep venous thrombosis; the patient was successfully treated with recombinant tissue plasminogen activator. She presented with a decrease in arterial oxygen saturation to 91%, and lung disease was suspected. A PAVF was subsequently found in the right S6 region using contrast computed tomography. Interventional radiologists successfully occluded the shunt using 6 microcoils. PAVF should be considered when determining the pathogenesis of cerebral ischemia in patients with hypoxia, which can be the only symptom of PAVF.
J Stroke Cerebrovasc Dis 2019 Jul
PMID:Paradoxical Brain Embolism Caused by Isolated Pulmonary Arteriovenous Fistula Successfully Treated with Recombinant Tissue Plasminogen Activator. 3100 19