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Boletín médico del Hospital Infantil de México

versión impresa ISSN 1665-1146


GALLARDO MEZA, Antonio Francisco et al. Experience in the surgical closure of patent ductus arteriosus in the Neonatal Intensive Care Unit of a second-level hospital in Guadalajara, Jalisco, Mexico. Bol. Med. Hosp. Infant. Mex. [online]. 2010, vol.67, n.2, pp. 128-132. ISSN 1665-1146.

Background: Patent ductus arteriosus (PDA) is the most common congenital cardiac defect affecting 80% of very low birth weight preterm newborns (<1 000 g) and is considered an important public health issue. The aim was to demonstrate that it is possible to perform surgical closure of PDA on premature newborns in a second-level hospital. Methods: We analyzed backgrounds and clinical evolution of 31 surgically treated patients with PDA. Criteria for surgical closure were 1) pharmacological closure failure, 2) pulmonary hypertension with left to right shunt, 3) echocardiogram with ductal diameter >1.5 mm, and Qs/Qp ratio (>1.5:1. 4) at >5 days of extrauterine life. All patients were operated using left posterolateral thoracotomy with extrapleural dissection and ductus closure with a 2-0 double silk ligature. Results: We studied 31 patients: 19 males and 12 females. Age range was between 30 and 35 weeks of gestational age. Birth weight was between 1 and 1.5 kg. Echocardiogram was confirmatory in 100% of patients; 15 patients did not have pharmacological closure, 12 had pharmacological closure failure, and 4 had medical contraindication for pharmacological closure (sepsis, renal failure and coagulation disturbances). There was no surgical mortality. In patients who died (five patients), it was after 15 or 20 postoperative days and due to problems unrelated to the surgical procedure. Conclusions: Surgical closure of PDA is feasible to perform in a second-level hospital with minimal complications. This was demonstrated with our results in those patients in whom pharmacological closure failed or was not indicated.

Palabras llave : patient ductus arteriosus; newborn; prematurity.

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