If the LVOT diameter falls in between, no definitive recommendation can be made, and the surgical approach is based on the surgeon's experience and overall philosophy. When two ventricles are present, there is almost always an interventricular communication, 1 and frequently there is some degree of obstruction or hypoplasia of the outflow tract of the subaortic ventricle. We advocate a conservative approach when the LVOT diameter is greater than the baby's weight + 2 mm and a LVOT bypass procedure (Yasui or Norwood) if the LVOT diameter is less than the baby's weight in millimeters. Interrupted aortic arch occurs in association with a wide variety of intracardiac malformations. The broken lines show the anticipated incisions in the ascending aorta and descending aorta, and a suture. To guide the decision for left ventricular outflow tract (LVOT) intervention and which type to use, we propose a simple formula based on the baby's weight. Repair of type B interrupted aortic arch. Great variability exists with regard to definition and diagnosis of LVOTO. (A) Survival between 19 (6 deaths), 19 (6 deaths), 19 (2 deaths), and. Left ventricular outflow tract obstruction (LVOTO) continues to be an important factor affecting survival and re-intervention rates after IAA repair. Figure 1 Differences in survival of interrupted aortic arch patients with associated ventricular septal defect atrial septal defect left ventricular outflow tract obstruction (simple group) with respect to the era of primary arch repair. In recent years, the move to a one-stage repair has become well established, and the optimal technique for aortic repair seems to be partial direct anastomosis with patch augmentation. Although results have improved in the modern era, repair of IAA is associated with a significant mortality and morbidity. It is associated with a multitude of lesions ranging from isolated ventricular septal defects to complex ones. Interrupted aortic arch (IAA) is defined as the loss of luminal continuity between the ascending and descending aorta.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |