1. Size and Stiffness of the Pulmonary Autograft after the Ross Procedure in Children
- Author
-
Tomoya Takigawa, Manabu Hisahara, Shigehiko Tokunaga, Hironori Baba, Chihiro Miyagi, Yusuke Ando, and Yoshie Ochiai
- Subjects
Male ,musculoskeletal diseases ,medicine.medical_specialty ,Adolescent ,Progressive change ,medicine.medical_treatment ,Heart Valve Diseases ,Stiffness index ,030204 cardiovascular system & hematology ,Transplantation, Autologous ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Humans ,Medicine ,Cardiac Surgical Procedures ,Autografts ,Child ,Retrospective Studies ,Pulmonary Valve ,business.industry ,Sinotubular Junction ,Ross procedure ,Angiography ,Stiffness ,Vascular surgery ,musculoskeletal system ,Surgery ,Cardiac surgery ,surgical procedures, operative ,030228 respiratory system ,Echocardiography ,Aortic Valve ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Female ,Aortic stiffness ,sense organs ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Dilatation, Pathologic ,Follow-Up Studies - Abstract
Progressive dilatation of the pulmonary autograft is one of the greatest concerns after the Ross procedure. Increased stress in the arterial wall may cause changes in the elastic properties of the pulmonary autograft, and thus lead to pathological dilatation. The present study aimed to investigate the changes in the autograft diameter and stiffness during follow-up after the Ross procedure. A total of ten patients underwent the Ross procedure at our institution between 2003 and 2011. Echocardiography was used to measure the diameters of the pulmonary autograft at the level of the annulus, sinus of Valsalva, and sinotubular junction. The stiffness index was calculated from the angiographic data, and compared with that of 16 age-matched control children. The diameters of the pulmonary autograft increased throughout the follow-up period, particularly at the level of the sinus of Valsalva and at the sinotubular junction. The aortic root was stiffer in Ross patients compared with control children (7.9 ± 1.8 vs. 3.9 ± 0.7 immediately postoperatively, p
- Published
- 2019
- Full Text
- View/download PDF