title: Partial anomalous pulmonary venous return: case report and review of the literature.
abstract: Isolated partial anomalous pulmonary venous return (APVR) is an uncommon finding. A patient with isolated APVR had pulmonary hypertension without demonstrable left-to-right shunting prior to anticoagulant treatment of pulmonary emboli. After anticoagulant therapy, with a fall in pulmonary pressures and resistance to near-normal levels, left-to-right shunting was then detected by oximetry and angiography. The anomaly was visualized on electron beam angiography and confirmed by conventional angiography after anticoagulant therapy. Contrary to the expected obligatory drainage of highly saturated blood associated with APVR, lack of detectable shunting was thought to be due to the obstruction of regional blood due to thromboembolism.
authors.affiliation: Harbor-UCLA Medical Center, Torrance, California, USA.
authors.forename: Jamil Anis
authors.initials: JA
authors.lastname: AboulHosn
authors.forename: John Michael
authors.initials: JM
authors.lastname: Criley
authors.forename: William W
authors.initials: WW
authors.lastname: Stringer
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use; D006328:Cardiac Catheterization / Q000379:methods; D002637:Chest Pain / Q000175:diagnosis* / Q000209:etiology; D017548:Echocardiography, Transesophageal; D005500:Follow-Up Studies; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation / Q000502:physiology; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D011667:Pulmonary Veins / Q000002:abnormalities*; D012129:Respiratory Function Tests; D018570:Risk Assessment; D014655:Vascular Resistance / Q000502:physiology
chemical_list: D000925:Anticoagulants