Browsing by Author "Villarroel del Pino, Luis A."
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- ItemA randomized controlled trial of a brief intervention for alcohol and drugs linked to the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) in primary health care in Chile(2017) Poblete A., Fernando; Barticevic Lantadilla, Nicolás A.; Zuzulich, Soledad Maria; Portilla, Rodrigo; Castillo Carniglia, Alvaro; Sapag Muñoz de la Peña, Jaime; Villarroel del Pino, Luis A.
- ItemA risk prediction model for severe intraventricular hemorrhage in very low birth weight infants and the effect of prophylactic indomethacin(2014) Luque, M.; Tapia Illanes, José Luis; Villarroel del Pino, Luis A.; Marshall Rivera, Guillermo; Musante, G.; Carlo, W.; Kattan Said, Alberto Javier
- ItemAcademic performance of medical students. A predictable result?(SOC MEDICA SANTIAGO, 2000) Bastías, Gabriel; Villarroel del Pino, Luis A.; Zúñiga Parada, Denisse Alejandra; Marshall Rivera, Guillermo; Velasco Fuentes, Nicolas; Mena Concha, Beltrán
- ItemAdaptación y validación de la escala de bienestar materno en situación de parto : segunda versión para escenarios de asistencia integral(2014) Uribe Torres, Claudia; Contreras Mejías, Aixa; Villarroel del Pino, Luis A.
- ItemAdaptación y validación del instrumento genérico collaboRATE™ para medir la participación de mujeres en la toma de decisiones en salud durante el proceso reproductivo(2018) Bravo Valenzuela, Paulina Fabiola; Contreras, Aixa; Dois C., Angelina M.; Villarroel del Pino, Luis A.
- ItemUna alimentación poco saludable se asocia a mayor prevalencia de síndrome metabólico en la población adulta chilena : estudio de corte transversal en la Encuesta Nacional de Salud 2009-2010(2015) Dussaillant, Catalina; Echeverria, Guadalupe; Villarroel del Pino, Luis A.; Marín Larraín, Pedro Paulo; Rigotti Rivera, Attilio
- ItemAntenatal exposure to magnesium sulfate and neonatal outcomes in very low birth weight infants: a multicenter study(2024) Vaz Ferreira, Catalina; Caro, Jose; Villarroel del Pino, Luis A.; Muñoz, Sergio; Álvarez, Patricia; Flores, Gerardo; Herrera, Tamara; Toso, Alberto; Toso Milos, Paulina Alejandra; Tapia Illanes, José Luis; NEOCOSUR Neonatal NetworkObjective: To explore the association between antenatal magnesium sulfate (MgSO4), mortality and incidence of intraventricular hemorrhage (IVH) in very low birth weight (VLBW) infants. Study design: Retrospective, cohort study of infants <32 weeks’ GA born at centers of NEOCOSUR Network between January 2015 and December 2020. Subjects were categorized as exposed vs non-exposed to antenatal MgSO4. Primary outcomes were death, incidence of severe IVH (Grade III-IV) and severe IVH/death. Secondary outcomes included relevant morbidities. Results: 7418 VLBW infants were eligible. Antenatal MgSO4 was associated with a significantly decreased death rate after admission (aOR 0.67 [95% CI, 0.49–0.94]) and severe IVH/ death (aOR 0.68 [95% CI, 0.50–0.93]). No significant reduction in severe IVH was observed (aOR 1.11 [95% CI, 0.72–1.71]). No differences between groups were observed in rates of morbidities. Conclusion: Antenatal MgSO4 was associated with a decreased death rate after admission and in severe IVH/ death.
- ItemASSOCIATION BETWEEN PERINATAL FACTORS AND COMPONENTS OF THE METABOLIC SYNDROME AND INSULIN RESISTANCE IN CHILDREN OF PUENTE ALTO, SANTIAGO, CHILE(2013) Mardones, Francisco; Pacheco, M.; Dominguez, Angélica; Villarroel del Pino, Luis A.; Eriksson, J. G.; Arnáiz Gómez, Pilar; Barja Y., Salesa; Castillo Valenzuela, Oscar; Farías Jofré, MarceloBackground and objectives: we have previously studied the association of prenatal growth with metabolic syndrome (MS) components, including insulin resistance (IR), in about two thousand Chilean low-income urban school-age children (J Devel Orig Health Dis. 2012; 3(4): 237-244). We aim to ascertain with a higher sample size the influence of the above mentioned variables. Methods: retrospective cohort study linking information on MS and IR in school-age, with perinatal records. 3325 children were enrolled in schools in the district of Puente Alto (Santiago, Chile) during 2009-2011. Anthropometry and blood pressure (BP) were assessed. A blood sample for determination of glycemia, insulinemia (quimioluminiscence) and blood lipids was taken; HOMA was calculated and a national standard was applied to select HOMA-IR cases. Cook et al standard was used to define MS. We used Pearson correlation, chi-square test and logistic regression step-by-step. Linear and quadratic associations were tested with Poisson regression. Results: 3290 children had complete information at birth (98.9%) 52.01% women; aged 11.4 + 1 years. The prevalence of MS and IR was 7.26% and 25.47%, respectively. Logistic regression analysis showed an inverse association between birth length (BL), gestational age and birth weight (BW) with most dependent variables studied. However BW showed a direct association with the majority of the dependent variables studied. The waist circumference > 90th percentile, BP > 90th percentile and triglycerides > 110 mg/dl were associated with U-shaped BW, BL and ponderal index, respectively. Conclusions: In this new study we could demonstrate a higher number of U-shaped associations with perinatal variables. New studies with higher sample sizes would permit to show this kind of associations and improve our understanding of the early origins of metabolic diseases.
- ItemAssociation of perinatal factors and school performance in primary school Chilean children(2013) Villarroel del Pino, Luis A.; Karzulovic Busch, Lorena Karina; Manzi Astudillo, Jorge; Eriksson, Johan; Mardones S., Francisco
- ItemASSOCIATION OF SUBCLINICAL ATHEROSCLEROSIS WITH DIFFERENT STANDARDS OF THE METABOLIC SYNDROME AND INSULIN RESISTANCE(2013) Arnai, P.; Dominguez, Angélica; Barja Y., Salesa; Godoy, I.; Villarroel del Pino, Luis A.; Castillo Valenzuela, Oscar; Farías Jofré, Marcelo; Mardones, FranciscoBackground and objectives: we have previously selected two metabolic syndrome (MS) components blood pressure (BP) and high density lipoprotein cholesterol (HDLC) as associated with carotid intima media thickness (CIMT) a surrogate marker of subclinical atherosclerosis in children (Rev Med Chile 2012; 140: 1268-75). We aimed to ascertain with a higher sample size the influence of the above mentioned variables and three standards defining the MS plus three standards defining insulin resistance (IR). Methods: A cross-sectional study of 447 children 10-14 years old of low socio-economic strata from an urban area of Chile was performed during years 2009-2011. This sample was selected considering the presence of one or more MS component and IR. Anthropometry and BP were assessed. A blood sample for determination of glycaemia, insulinemia (quimioluminiscence) and blood lipids were taken; HOMA was calculated and three standards were applied to select HOMA-IR cases. Three standards to define MS were also used. Medium CIMT was assessed using ultrasonography with automated software. Chi-squared test and stepwise regression were used. Results: Mean age was 11.5 ±1.0 years old; 59% girls; 92.6% pubertal; 72% excess weight. Three standards for MS had prevalence of 24.4% (Cook, 2004), 14.1% (IDF, 2007), 42.9% (De Ferranti, 2004). Three standards for HOMA-IR had the following prevalence: 15.2% (Barja, 2011), 37.4% (Burrows, 2006), 23.0% (De Onis, 2012). Elevated blood pressure and reduced CHDL had significant associations with CIMT ≥ percentile 75. The logistic regression for CIMT ≥ percentile 75 only selected BP ≥ percentile 90 (OR = 2.963) and CHDL < 40 mg/dL (OR = 1.789) Conclusions: None of the various classifications for the MS and the HOMA-IR were selected in the multivariate analysis confirming the previously found influence of increased BP and reduced CHDL on medium CIMT.
- ItemAssociation of vitamin D deficiency, season of the year, and latent tuberculosis infection among household contacts(2017) Balcells Marty, María Elvira; García Cañete, Patricia; Tiznado, Camila; Villarroel del Pino, Luis A.
- ItemAteroesclerosis subclínica y síndrome metabólico en niños(2013) Arnáiz Gómez, Pilar; Barja Y., Salesa; Villarroel del Pino, Luis A.; Domínguez, Angélica; Godoy J., Iván; Castillo Valenzuela, Oscar; Farías Jofré, Marcelo Enrique; Mardones, Francisco
- ItemAttitudes of Medical Students Toward Psychiatry in a Chilean Medical School(2014) Valdivieso Fernández, Sergio Andrés; Sirhan Nahum, Marisol; Aguirre, Constanza; Ivelic Zulueta, José Antonio; Aillach Bravo, Emilio Jorge; Villarroel del Pino, Luis A.
- ItemAutores clásicos en psiquiatría : evaluación de un modelo de enseñanza de la psicopatología para residentes de psiquiatría(2015) Valdivieso F., Sergio; Brockering, Walter; Mejías, Macarena; Villarroel del Pino, Luis A.; Gustavo, Maldonado; Sirhan Nahum, Marisol
- ItemBanding ligation versus beta-blockers for primary prophylaxis of oesophageal variceal bleeding in children. Protocol(2013) Gana Ansaldo, Juan Cristóbal; Cifuentes, Lorena; Cerda, Jaime; Villarroel del Pino, Luis A.; Rivera Cornejo, Marcela; Peña Villegas, Alfredo Javier
- ItemBanding ligation versus sclerotherapy for primary prophylaxis of oesophageal varices in children (Protocol)(2015) Gana Ansaldo, Juan Cristóbal; Cifuentes, Lorena; Cerda, Jaime; Villarroel del Pino, Luis A.; Peña Villegas, Alfredo Javier; Torres Robles, R.
- ItemBanding ligation versus sham or no intervention for primary prophylaxis of oesophageal variceal bleeding in children(2015) Gana Ansaldo, Juan Cristóbal; Cifuentes, Lorena; Cerda, Jaime; Villarroel del Pino, Luis A.; Peña Villegas, Alfredo Javier; Rivera Cornejo, M.
- ItemBeta-blockers versus placebo or no intervention for primary prophylaxis of oesophageal varices in children(2015) Gana Ansaldo, Juan Cristóbal; Cifuentes, Lorena; Cerda, Jaime; Villarroel del Pino, Luis A.; Peña Villegas, Alfredo Javier; Torres‐Robles, Romina
- ItemBile acids for cholelithiasis(2018) Gana Ansaldo, Juan Cristóbal; Gattini Valdés, Daniela Cecilia; Villarroel del Pino, Luis A.; Larraín Castellón, Sebastián; Yap, Jason
- ItemCluster analysis using multivariate mixed effects models(WILEY, 2009) Villarroel del Pino, Luis A.; Marshall Rivera, Guillermo; Baron, Anna E.