摘要
To the Editor:Pulmonary arteriovenous fistula(PAVF)is abnormally dilated vessels that bypass the lung capillary bed,providing a direct right-to-left shunt:.The clinical manifestations of PAVF can vary from asymptomatic to dyspnea on exertion,fatigability,cyanosis,and neurological complications.Patients with congenital PAVF are often associated with hereditary hemorrhagic telangiectasia(HHT)and congenital heart disease.The primary aim of treatment through transcatheter techniques or surgery is to reduce or abrogate abnormal shunt and to prevent severe complications.The development of medical apparatus and instruments has expanded the in dications of interventional closure of PAVF.However,data on the efficacy and safety of transcatheter closure of PAVFs is still lacking.
