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Revista chilena de pediatría

versão impressa ISSN 0370-4106


URCELAY, Gonzalo et al. Hypoplastic left heart syndrome: 10 year experience with staged surgical management. Rev. chil. pediatr. [online]. 2016, vol.87, n.2, pp.121-128. ISSN 0370-4106.

Abstract Hypoplastic left heart syndrome (HLHS) is a lethal congenital heart disease in 95% of non-treated patients. Surgical staging is the main form of treatment, consisting of a 3-stage approach, beginning with the Norwood operation. Long term survival of treated patients is unknown in our country. Objectives 1) To review our experience in the management of all patients seen with HLHS between January 2000 and June 2012. 2) Identify risk factors for mortality. Patients and method Retrospective analysis of a single institution experience with a cohort of patients with HLHS. Clinical, surgical, and follow-up records were reviewed. Results Of the 76 patients with HLHS, 9 had a restrictive atrial septal defect (ASD), and 8 had an ascending aorta ≤ 2 mm. Of the 65 out of 76 patients that were treated, 77% had a Norwood operation with pulmonary blood flow supplied by a right ventricle to pulmonary artery conduit, 17% had a Norwood with a Blalock-Taussig shunt, and 6% other surgical procedure. Surgical mortality at the first stage was 23%, and for Norwood operation 21.3%. For the period between 2000-2005, surgical mortality at the first stage was 36%, and between 2005-2010, 15% (P = .05). Actuarial survival was 64% at one year, and 57% at 5 years. Using a multivariate analysis, a restrictive ASD and a diminutive aorta were high risk factors for mortality. Conclusions Our immediate and long term outcome for staged surgical management of HLHS is similar to that reported by large centres. There is an improvement in surgical mortality in the second half of our experience. Risk factors for mortality are also identified.

Palavras-chave : Hypoplastic left heart syndrome; Norwood procedure; Congenital heart diseases; Surgical mortality.

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