Reinterventions in patients with pulmonary atresia and intact ventricular septum after transcatheter pulmonary valve perforation
DOI:
https://doi.org/10.11603/2414-4533.2018.2.9185Keywords:
pulmonary atresia with intact interventricular septum, perforation of the pulmonary valve, repeated interventions.Abstract
The aim of the work: to determine the factors that influence the frequency of reinterventions in the postoperative period after perforation of the pulmonary artery valve in patients with pulmonary atresia and intact ventricular septum (PA/IVS).
Materials and Methods. Perioperative data (ECHO and Cath Lab data) were reviewed retrospectively for all patients with PA/IVS, who underwent pulmonary valve perforation in our institution from September 2003 to December 2014.
Results and Discussion. Perforation and further balloon valvuloplasty of the pulmonary artery valve in newborn patients with PA/ IVS is an effective and safe procedure for restoring antegrade pulmonary blood flow. In our group of patients, the efficacy was 87 % (n = 41). Hospital mortality was 4.8 % (n = 2). However, despite the advantages of this technique, a significant number of patients require repeated interventions. The frequency of reinterventions in the early postoperative period was 34 % (n = 14) and was associated with the need to create an additional source of pulmonary blood flow. Among the factors that influenced the frequency of reinterventions in the early postoperative period were the following indicators: the size of the tricuspid valve ring and its corresponding Z-score; the ratio of the tricuspid valve size to the mitral valve size; siz e of interatrial communication.
In the long-term period, 11 patients (27 %) needed repeated operations. All reinterventions were directed to the right ventricular outflow tract (RVOT) plasty. The only indicator that is able to predict the need for repeated intervention was the pressure gradient on the outflow tract.
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