Potential goals for the dimensions of the pulmonary arteries and aorta with stenting after the Fontan operation.
The purpose of this study was to clarify desired stent sizes for stenotic lesions in the post-Fontan circulation. Using angiograms from 22 patients before and at late follow-up (> or = 15 years) after the Fontan operation, we measured the maximum diameters of the proximal pulmonary arteries (PA) and the descending aorta. The diameters of the PA ipsilateral to the inferior vena cava, contralateral to the inferior vena cava, and descending aorta after the Fontan were 10.6-22.6 (15.8 +/- 3.3), 8.0-19.1 (12.9 +/- 3.1), and 12.1-18.9 (15.8 +/- 2.0) mm, respectively, while the percent of normal predicted diameters (% N) were 55%-104% (70% +/- 14%), 38%-99% (66% +/- 17%), and 46%-74% (60% +/- 7%), respectively. Despite somatic growth, the % N of all vessel diameters decreased significantly after the Fontan operation. In conclusion, smaller-sized stents should be acceptable for both the pulmonary artery and descending aorta in the Fontan circulation.
Department of Pediatrics, National Cardiovascular Center, Osaka, Japan. tomitah@hsp.ncvc.go.jp
Hideshi
H
Tomita
Satoshi
S
Yazaki
Kohji
K
Kimura
Yasuo
Y
Ono
Osamu
O
Yamada
Hideo
H
Ohuchi
Toshikatsu
T
Yagihara
Shigeyuki
S
Echigo
D000293:Adolescent; D001013:Aorta, Thoracic / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D003251:Constriction, Pathologic; D004310:Double Outlet Right Ventricle / Q000601:surgery; D005500:Follow-Up Studies; D018729:Fontan Procedure; D006330:Heart Defects, Congenital / Q000601:surgery*; D006352:Heart Ventricles / Q000002:abnormalities; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D011184:Postoperative Period; D011651:Pulmonary Artery / Q000473:pathology*; D015607:Stents; D018785:Tricuspid Atresia / Q000601:surgery