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Pulmonary arteriovenous fistula case report: diagnosis and endovascular treatment
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Abstract
SUMMARY
Pulmonary arteriovenous malformations (PAVM) are rare pulmonary vascular anomalies. Although most patients are asymptomatic, PAVMs can cause dyspnoea from right-to-left shunt. Because of paradoxical emboli, various central nervous
system complications have been described including stroke and brain abscess. There is a strong association between PAVM and hereditary haemorrhagic telangiectasia. Chest radiography and contrast enhanced computed tomography are essential initial diagnostic tools but pulmonary angiography is the gold standard. Contrast echocardiography is useful for diagnosis and monitoring after treatment. Most patients should be treated. Therapeutic options include angiographic embolisation with metal coil or balloon occlusion and surgical excision. We present a clinical case in a 33-year-old male patient, diagnosed with a large, single PAVM in the right lower lung with X-ray and CT scan. Patients treated with pulmonary angiography embolisation with 2 metal coil and plug14, rechecked after 6 months by magnetic resonance, computerized tomography and pulmonary angiography, complete loss of shunt stream.
Clinically improved, blood gas test before intervention: pO2 64.7mmHg and SatO2 89.9% and 6 months after intervention: pO2 91.3mmHg and SatO2 96.2% .
Article Details
Keywords
arteriovenous fistula, embolization, pulmonary vascular malformation
References
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