OBJECTIVES: The study was done to determine the prevalence of @entity1151 ( @entity1151 ) in asymptomatic adult Fontan @entity1 and to identify the risk factors associated with @entity1151 . BACKGROUND: Right @entity1031 have been reported after the Fontan procedure. However, the frequency of silent @entity1151 in this @entity1 population is not known. METHODS: All consecutive adult Fontan @entity1 attending the adult congenital clinic over a six-month period underwent ventilation-perfusion (VQ) scanning and blood testing for @entity49 tendency. If the VQ scan showed an intermediate or high probability for @entity1151 , a computerized tomography (CT) pulmonary angiogram was performed to confirm the presence of @entity1151 . RESULTS: Thirty @entity1 (mean age 26 +/- 7 years, 57% @entity1 ) were included in this study. Five (17%) adult Fontan @entity1 had an intermediate or high probability for @entity1151 on VQ scan, all of which were confirmed on CT pulmonary angiography. No @entity1 had a @entity49 tendency. Pulmonary emboli were not present in any @entity1 (30%) taking @entity1229 . Late age at time of Fontan operation (19 +/- 6 years vs. 11 +/- 6 years, p = 0.012) and type of Fontan anatomy (p = 0.001) were associated with increased risk of silent @entity1151 . CONCLUSIONS: Seventeen percent of adult @entity1 with Fontan procedure have clinically silent @entity1151 . The long-term hemodynamic implications of this with respect to Fontan attrition over time are unknown. Large randomized prospective studies looking at anticoagulation therapy in all Fontan @entity1 are urgently needed.

Prevalence of "silent" XXXX in adults after the Fontan operation.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient', 'men'] @entity49 :: ('MESH:D019851', 'Disease') :: ['thrombophilia'] @entity1151 :: ('MESH:D011655', 'Disease') :: ['pulmonary emboli', 'PE'] @entity1031 :: ('MESH:D013923', 'Disease') :: ['atrial thrombi and systemic thromboembolic complications'] @entity1229 :: ('MESH:D014859', 'Chemical') :: ['warfarin']
@entity1151 :: (MESH:D011655,Disease) :: ['pulmonary emboli']
