Browsing by Author "Estay, Alberto"

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    Effect of two different chest compression techniques on ventilation during neonatal resuscitation
    (2021) Jahnsen, Johanne; Gonzalez, Alvaro; Fabres, Jorge; Bahamondes, Alejandra; Estay, Alberto
    Objective To assess tidal volume (Vt) and minute ventilation (MV) during cardiopulmonary resuscitation (CPR) with two different chest compressions techniques: two-finger (TFT) or two-thumb technique (TTT) in a neonatal model. Methods Vt and MV were continuously measured during consecutive periods of resuscitation in an intubated manikin. Thirty participants performed the two compression techniques in a random order for 2-min periods while performing positive pressure ventilation using a T-piece resuscitator (TPR) or a self-inflating bag (SIB). Results Vt during CPR with TFT was significantly higher than TTT with either TPR: 44.9 +/- 4.3 vs 39.2 +/- 5.4 ml (p < 0.001) or SIB: 39.2 +/- 5.7 vs 35.6 +/- 6.5 ml (p < 0.023). Similarly MV was significantly higher in TFT than TTT with either mode: 1346 +/- 130 vs 1175 +/- 162 ml/min, respectively, with TPR (p < 0.001) and 1177 +/- 170 vs 1069 +/- 196 ml/min with SIB (p < 0.03). Conclusions Chest compressions during CPR using the TFT achieved higher Vt and MV than TTT in this model of neonatal resuscitation.
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    Improvement of survival in infants with congenital diaphragmatic hernia in recent years: effect of ECMO availability and associated factors
    (2010) Kattan, Javier; Godoy, Loreto; Zavala, Alejandro; Faunes, Miriam; Becker, Pedro; Estay, Alberto; Fabres, Jorge; Toso, Paulina; Urzua, Soledad; Becker, Jorge; Cerda, Jaime; Gonzalez, Alvaro
    Survival of patients with congenital diaphragmatic hernia (CDH) depends both on non-modifiable congenital conditions and on modifiable pre and postnatal management. ECMO improves survival up to 80% in neonates with CDH in the best ECMO centers worldwide. The first Neonatal ECMO Program in Chile was started in our University in 2003. Our objective is to determine the impact of a Neonatal ECMO Program in a level III NICU on newborns with CDH.
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    Mechanical ventilation in the extreme premature newborn, where we are going?
    (Palgrave Macmillan, 2021) Gonzalez, Alvaro; Estay, Alberto
    Extremely preterm infants frequently require mechanical ventilation (MV). In recent years, a wide variety of ventilators have been developed that provide different modes and precise information on the volumes they deliver, allowing health professionals to optimize ventilation and level of support. The objective of this review is to describe different ventilatory practices in preterm infants.
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    Mode of delivery and antenatal steroids and their association with survival and severe intraventricular hemorrhage in very low birth weight infants
    (2016) Hubner, M. E.; Ramirez, R.; Burgos, J.; Dominguez, A.; Tapia, J. L.; Colantonio, Guillermo; Zapata, Jorge; Perez, Gaston; Ana Pedraza, Susana Garcia; Kurlat, Isabel; Di Siervi, Oscar; Escarate, Adriana; Mariani, Gonzalo; Maria Ceriani, Jose; Fernandez, Silvia; Fustinana, Carlos; Brener, Pablo; Edwards, Eleonora; Tavosnaska, Jorge; Roldan, Liliana; Sexer, Hector; Saa, Gladys; Sabatelli, Debora; Laura Gendra, Maria; Fernanda Buraschi, Maria; Molina, Paula; Daniel, Agost; Morganti, Federico; Fontana, Adriana; Chandias, Daniela; Rinaldi, Monica; Grandi, Carlos; Rojas, Elio; Solana, Claudio; Nieto, Ricardo; Meritano, Javier; Larguia, Miguel; Kasten, Laura; Cuneo, Lucrecia; Decaro, Marcelo; Cracco, Lionel; Bassi, Gustavo; Jacobi, Noemi; Brum, Andrea; Vain, Nestor; Aguilar, Adriana; Guerrero, Miriam; Szyld, Edgardo; Escandar, Alcira; Abdala, Daniel; Guida, Martin; Ferrin, Lucila; Roge, Horacio; Musante, Gabriel; Capelli, Maria C.; Pablo Berazategui, Juan; de Elizalde, Magdalena; Ignacio Fraga, Juan; Keller, Rodolfo; Ahumada, Luis; Ferreyra, Mirta; Ferreira, Vanda; Borges, Roberta; Do Vale, Marynea; Cavalcante, Silvia; Gusmao, Joama; Franco, Patricia; Jose Silva, Maria; Fabres, Jorge; Estay, Alberto; Gonzalez, Alvaro; Kattan, Javier; Quezada, Mariela; Urzua, Soledad; Campos, Lilia; Cifuentes, Lilian; Leon, Jorge; Aguilar, Roxana; Treuer, Sergio; Giaconi, Jimena; Bancalari, Aldo; Standen, Jane; Escobar, Marisol; Veas, Viviana; Sandino, Daniela; Gonzalez, Agustina; Avila, Claudia; Guzman, Carla; Toro, Claudia; Mena, Patricia; Milet, Beatriz; Pittaluga, Enrica; Pena, Veronica; Mendizabal, Rafael; Pizarro, Dagoberto; D'Apremont, Ivonne; Tapia, Jose L.; Marshall, Guillermo; Villarroel, Luis; Quezada, Mariela; Dominguez, Angelica; Lacarruba, Jose; Cespedes, Elizabeth; Mir, Ramon; Mendieta, Elvira; Genes, Larissa; Caballero, Carlos; Webb, Veronica; Rivera, Fabiola; Llontop, Margarita; Bellomo, Sicilia; Zegarra, Jaime; Chumbes, Oscar; Castaneda, Anne; Cabrera, Walter; Llanos, Raul; Mucha, Jorge; Garcia, Gustavo; Ceruti, Beatriz; Borbonet, Daniel; Gugliucci, Sandra; Lain, Ana; Martinez, Mariza; Bazan, Gabriela; Piffaretti, Susana; Cuna, Isabel; Bermudez, Patricia
    OBJECTIVE: To determine whether CS delivery and receipt of antenatal steroids (ANS) in vertex-presenting singletons with a gestational age (GA) between 24 and 30 weeks is associated with improved survival and improved severe intraventricular hemorrhage (sIVH)-free survival.
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    Oxigenación con membrana extracorpórea en pacientes pediátricos. Comunicación de los 3 primeros casos tratados
    (2005) Kattan, Javier; González, Álvaro; Becker, Pedro; Rodríguez, José; Estay, Alberto; Faunes, Miriam; Fajardo, Christian; Canessa, Roberto
    Extracorporeal membrane oxygenation (ECMO) improves survival in neonatal and pediatric patients with reversible severe respiratory or cardiac failure, in whom intensive treatment fails. Since 1999, a multidisciplinary team is trained to form the first neonatal-pediatric ECMO center in Chile, according to the norms of the Extracorporeal Life Support Organization (ELSO). During 2003 the first three patients were admitted to the program: a male newborn with pulmonary hypertension, a 38 days old female operated for a total anomalous pulmonary venous connection and a 3 months old male with a severe pneumonia caused by respiratory syncytial virus. They remained in ECMO for five, seven and nine days respectively and all survived to the procedure. No neurological complications were observed after one and a half year of follow up. This consolidates the first national neonatal-pediatric ECMO program, associated to ELSO. Up to date, twelve patients have been admitted to the program (Rev Méd Chile 2005; 133: 1065-70).