• M Sánchez Luna, J Vázquez Estévez, D Blanco Bravo, B Arias Novas, S Caballero Martin, M L Serrano Madrid, M L Franco Fernández, V Pérez Sheriff, R Greco Martínez, and E Maroto Alvaro.
• Servicio de Neonatología, H.G.U. Gregorio Marañón, Madrid.
• An. Esp. Pediatr. 1999 Dec 1;51(6):677-83.

ObjectiveExtracorporal membrane oxygenation (ECMO) is an alternative to cases of respiratory or cardiopulmonary insufficiency when conventional therapy has failed. We present the first 22 patients treated with ECMO at the neonatology unit of the "Gregorio Marañon" Hospital.Patients And MethodsFrom October 1997 until September 1999, 22 patients were treated with ECMO. In 8 of them ECMO was necessary because of respiratory insufficiency without response to conventional treatment (r-ECMO) and a veno-venous tidal flow system was used. In 14 patients, cardiac ECMO was necessary in the veno-arterial modality because of ventricular failure after extracorporal circulatory assistance during cardiovascular surgery.ResultsThe 8 patients of the respiratory ECMO group had a mean previous oxygenation index of 89 +/- 36.6 (50-150). The mean duration of ECMO was 7.8 +/- 6.5 (1-16) days and the age at the beginning of ECMO ranged between 1 and 151 days. The most frequent indications in this group were congenital diaphragmatic hernia in three cases, meconium aspiration syndrome in 2 cases and 1 case each of septic shock, idiopathic pulmonary hypertension and air leak. The cannula was removed in 5/8 patients due to recovery and 5/8 survived. The 14 patients of the cardiac ECMO group needed veno-arterial ECMO because of severe ventricular failure. Eight out of fourteen were decannulated after improvement. In 5/14 there was multiorgan failure or bad neurological prognosis resulting in death while on ECMO. In 1 out of 14 patients removal of the cannula was impossible because of cardiac insufficiency. The mean age at the beginning of ECMO was 54 (3-178) days. The mean weight at ECMO was 3209 +/- 739 (2700-5000) gr and the mean duration of ECMO was 6 (1-15) days.ConclusionsECMO is an effective treatment in rescuing critical patients when conventional treatment fails. Meconium aspiration syndrome is the pathology with the best prognosis on ECMO. Cardiac ECMO represents a complex group of patients in which ECMO is the only treatment and which may result in recovery in 40% of the patients.

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