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INTRODUCTION: Neonatal Candida spp. infections are serious events due to their morbidity and mortality, however, epidemiological information is insufficient in developing countries. The objective of this study was to describe the incidence and factors associated with invasive infection by Candida spp. in a Neonatal Intensive Care Unit in Mexico. METHODS: Case-control study nested in a cohort and matched for birth weight. We estimated the incidence of invasive neonatal infection by Candida spp. For the bivariate analysis of the studied factors, McNemar's test was used to contrast hypotheses and multivariate analysis was made with logistic regression. RESULTS: The incidence of infection was 2.27 events/1000 live newborns. The species identified were C. albicans 35.3% (n 30), C. parapsilosis 30.6% (n 26), C. glabrata 31.8% (n 27) and two events with C. lipolytica. The factors associated with a higher risk were mechanical ventilation (OR 3.04, 95% CI 1.13-8.14), systemic antibiotics (OR 7.48, 95% CI 1.30-42.9), number of antimicrobial regimens (OR 2.02, 95% CI 1.01-4.03), and days with total parenteral nutrition (OR 1.14, 95% CI 1.04-1.25) or with venous catheter central (OR 1.11, 95% CI 1.02-1.20). Fluconazole prophylaxis decreased the risk (OR 0.32, 95% CI 0.12-0.84). CONCLUSIONS: Invasive interventions (central catheter, mechanical ventilation, and parenteral nutrition) and the use of antimicrobials increase the risk of neonatal Candida spp. Infection, while prophylactic fluconazole is protective.

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INTRODUCTION: Neonatal Candida spp. infections are serious events due to their morbidity and mortality, however, epidemiological information is insufficient in developing countries. The objective of this study was to describe the incidence and factors associated with invasive infection by Candida spp. in a Neonatal Intensive Care Unit in Mexico. METHODS: Case-control study nested in a cohort and matched for birth weight. We estimate the incidence of invasive neonatal infection by Candida spp. For the bivariate analysis of the studied factors, McNemar's test was used to contrast hypotheses and multivariate analysis was made with logistic regression. RESULTS: The incidence of infection was 2.27 events/1000 live newborns. The species identified were C. albicans 35.3% (n 30), C. parapsilosis 30.6% (n 26), C. glabrata 31.8% (n 27) and two events with C. lipolytica. The factors associated with a higher risk were mechanical ventilation (OR 3.04; 95% CI 1.13-8.14), systemic antibiotics (OR 7.48; 95% CI 1.30-42.9), number of antimicrobial regimens (OR 2.02; 95% CI 1.01-4.03), and days with total parenteral nutrition (OR 1.14; 95% CI 1.04-1.25) or with venous catheter central (OR 1.11; 95% CI 1.02-1.20). Fluconazole prophylaxis decreased the risk (OR 0.32; 95% CI 0.12-0.84). CONCLUSIONS: Invasive interventions (central catheter, mechanical ventilation, and parenteral nutrition) and the use of antimicrobials increase the risk of neonatal Candida spp. Infection, while prophylactic fluconazole is protective.

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INTRODUCTION: Family history of thyroid disease (FHTD) constitutes a possible risk factor for congenital hypothyroidism (CH) in the general population; however, FHTD possible relationship with CH in subjects with Down syndrome (DS) has not yet been explored. OBJECTIVE: To determine whether FHTD is associated with an increased incidence of CH in neonates with DS. METHOD: Hospital-based case-control study in 220 neonates with DS. Thyroid function tests of 37 infants with DS and positive FHTD (cases) were compared with those of 183 newborns with DS without FHTD (control group). Data were analyzed using multivariate logistic regression analysis and adjusted odds ratios (aORs) with their respective 95 % confidence intervals (CI) were calculated. RESULTS: Nine newborns with DS in our sample had CH (4.1 %). In the multivariate analysis, FHTD showed an association with CH in neonates with DS (aOR = 8.3, 95 % CI: 2.0-34.3), particularly in males (aOR = 9.0, 95 % CI: 1.6-49.6). In contrast, newborns with DS without FHTD were less likely to suffer from CH (aOR = 0.4, 95 % CI: 0.1-0.8). CONCLUSIONS: Newborns with DS and FHTD have an eight-fold higher risk for CH, particularly when the index case is male. FHTD detailed evaluation can be an easy and accessible strategy to identify those newborns with DS at higher risk for CH.

INTRODUCCIÓN: La historia familiar de enfermedad tiroidea (HFET) como factor de riesgo para hipotiroidismo congénito (HC), en síndrome de Down (SD) aún no ha sido explorada. OBJETIVO: Determinar si la HFET está asociada a mayor riesgo de HC en neonatos con SD. MÉTODO: Estudio de casos y controles en 220 neonatos con SD. Se compararon las pruebas de función tiroidea (PFT) de 37 con SD e HFET (casos), frente a las PFT de 183 recién nacidos con SD sin HFET (grupo de referencia). Se realizó análisis de regresión logística multivariante y se calculó la razón de momios (RM) y sus respectivos intervalos de confianza del 95 % (IC 95 %). RESULTADOS: Nueve casos HC (4.1 %). El HC mostró asociación con la HFET (RMa = 8.3, IC 95 %: 2.0-34.3), particularmente en los varones (RMa = 9.0, IC 95 %: 1.6-49.6). La ausencia de HFET tuvo una RM de protección para HC (RMa = 0.4, IC 95 %: 0.1-0.8). CONCLUSIONES: La HFET puede es una estrategia fácil y accesible para identificar pacientes con SD con mayor riesgo de HC.

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Resumen Introducción: La historia familiar de enfermedad tiroidea (HFET) como factor de riesgo para hipotiroidismo congénito (HC), en síndrome de Down (SD) aún no ha sido explorada. Objetivo: Determinar si la HFET está asociada a mayor riesgo de HC en neonatos con SD. Método: Estudio de casos y controles en 220 neonatos con SD. Se compararon las pruebas de función tiroidea (PFT) de 37 con SD e HFET (casos), frente a las PFT de 183 recién nacidos con SD sin HFET (grupo de referencia). Se realizó análisis de regresión logística multivariante y se calculó la razón de momios (RM) y sus respectivos intervalos de confianza del 95 % (IC 95 %). Resultados: Nueve casos HC (4.1 %). El HC mostró asociación con la HFET (RMa = 8.3, IC 95 %: 2.0-34.3), particularmente en los varones (RMa = 9.0, IC 95 %: 1.6-49.6). La ausencia de HFET tuvo una RM de protección para HC (RMa = 0.4, IC 95 %: 0.1-0.8). Conclusiones: La HFET puede es una estrategia fácil y accesible para identificar pacientes con SD con mayor riesgo de HC.

Abstract Introduction: Family history of thyroid disease (FHTD) as risk factor for congenital hypothyroidism (CH) in patients with Down syndrome (DS) has not yet been explored. Objective: To determine whether FHTD is associated with an increased risk for CH in DS. Method: Case-control study in 220 neonates with DS. Thyroid function tests of 37 infants with DS and FHTD (cases) were compared with those of 183 DS newborns without FHTD (reference group). Data were analyzed using multivariate logistic regression analysis and adjusted odds ratios (aORs) with their respective 95 % confidence intervals (CI) were calculated. Results: Nine newborns with DS in our sample had CH (4.1 %). FHTD showed an association with CH in neonates with DS (aOR = 8.3, 95 % CI: 2.0-34.3), particularly in males (aOR = 9.0, 95 % CI: 1.6-49.6). In contrast, newborns with DS without FHTD were less likely to suffer from CH (aOR = 0.4, 95 % CI: 0.1-0.8). Conclusions: FHTD detailed evaluation can be an easy and accessible strategy to identify those newborns with DS at higher risk for CH.

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Introducción. La mayor supervivencia de pacientes prematuros ha modificado la epidemiología de las enfermedades del recién nacido, pero la mortalidad neonatal aún es el principal componente de la mortalidad infantil. El objetivo del estudio fue cuantificar la mortalidad neonatal y los factores asociados en recién nacidos internados en una Unidad de Cuidados Neonatales. Material y métodos. Estudio de cohorte prospectivo realizado de enero de 2016 a enero de 2017 en el Hospital Civil de Guadalajara "Dr. Juan I. Menchaca". Se cuantificó la incidencia de muertes y las condiciones asociadas mediante un análisis multivariado con regresión logística. Resultados. Se registraron 9366 nacidos vivos; fueron internados en la Unidad de Cuidados Neonatales el 15% (n: 1410). La mortalidad fue de 125,5 por 1000 recién nacidos internados (IC 95%: 109-144); las principales causas fueron malformaciones o enfermedades genéticas (28,2%), infecciones (24,9%) y síndrome de dificultad respiratoria (20,9%). Las condiciones asociadas a muerte fueron edad gestacional < 37 semanas (OR 2,41; IC 95%: 1,49-3,93), peso al nacer < 1500 gramos (OR 6,30; IC 95%: 4,159,55), dificultad respiratoria moderada/grave a los 10 minutos de vida (OR 1,89; IC 95%: 1,242,86), Apgar < 7 a los 5 minutos de vida (OR 9,40; IC 95%: 5,76-15,31), malformaciones congénitas (OR 5,52; IC 95%: 3,12-9,78) y menos de cinco consultas de control prenatal (OR 1,51; IC 95%: 1,09-2,08). Conclusiones. El nacimiento prematuro, bajo peso al nacer, dificultad respiratoria, Apgar < 7, malformaciones congénitas y antecedente de < 5 consultas de control prenatal se asociaron con mayor riesgo de muerte.

Introduction. The increasing survival rate of preterm infants has altered the epidemiology of neonatal diseases; however, neonatal mortality is still the main component of child mortality. The objective of this study was to evaluate neonatal mortality and associated factors in newborn infants admitted to a neonatal care unit. Material and methods. Prospective cohort study conducted between January 2016 and January 2017 at Hospital Civil de Guadalajara "Dr. Juan I. Menchaca." The incidence of deaths and associated conditions was evaluated using a multivariate logistic regression analysis. Results. A total of 9366 live births were registered; 15% (n: 1410) of these were admitted to the neonatal care unit. The mortality rate was 125.5 per 1000 hospitalized newborn infants (95% confidence interval --#91;CI--#93;: 109-144); the main reasons for admission were congenital malformations or genetic disorders (28.2%), infections (24.9%), and respiratory distress (20.9%). The conditions associated with death were gestational age < 37 weeks (OR: 2.41, 95% CI: 1.49-3.93), birth weight < 1500 grams (OR: 6.30, 95% CI: 4.15-9.55), moderate/severe respiratory distress at 10 minutes (OR: 1.89, 95% CI: 1.24-2.86), Apgar score < 7 at 5 minutes (OR: 9.40, 95% CI: 5.76-15.31), congenital malformations (OR: 5.52, 95% CI: 3.12-9.78), and less than 5 antenatal care visits (OR: 1.51, 95% CI: 1.09-2.08). Conclusions. Preterm birth, low birth weight, respiratory distress, Apgar score < 7, congenital malformations, and a history of < 5 antenatal care visits were associated with a higher risk for death.

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INTRODUCTION: The increasing survival rate of preterm infants has altered the epidemiology of neonatal diseases; however, neonatal mortality is still the main component of child mortality. The objective of this study was to evaluate neonatal mortality and associated factors in newborn infants admitted to a neonatal care unit. MATERIAL AND METHODS: Prospective cohort study conducted between January 2016 and January 2017 at Hospital Civil de Guadalajara "Dr. Juan I. Menchaca." The incidence of deaths and associated conditions was evaluated using a multivariate logistic regression analysis. RESULTS: A total of 9366 live births were registered; 15% (n: 1410) of these were admitted to the neonatal care unit. The mortality rate was 125.5 per 1000 hospitalized newborn infants (95% confidence interval [CI]: 109-144); the main reasons for admission were congenital malformations or genetic disorders (28.2%), infections (24.9%), and respiratory distress (20.9%). The conditions associated with death were gestational age < 37 weeks (OR: 2.41, 95% CI: 1.49-3.93), birth weight < 1500 grams (OR: 6.30, 95% CI: 4.15-9.55), moderate/severe respiratory distress at 10 minutes (OR: 1.89, 95% CI: 1.24-2.86), Apgar score < 7 at 5 minutes (OR: 9.40, 95% CI: 5.76-15.31), congenital malformations (OR: 5.52, 95% CI: 3.12-9.78), and less than 5 antenatal care visits (OR: 1.51, 95% CI: 1.09-2.08). CONCLUSIONS: Preterm birth, low birth weight, respiratory distress, Apgar score < 7, congenital malformations, and a history of < 5 antenatal care visits were associated with a higher risk for death.

INTRODUCCIÓN: La mayor supervivencia de pacientes prematuros ha modificado la epidemiología de las enfermedades del recién nacido, pero la mortalidad neonatal aún es el principal componente de la mortalidad infantil. El objetivo del estudio fue cuantificar la mortalidad neonatal y los factores asociados en recién nacidos internados en una Unidad de Cuidados Neonatales. MATERIAL Y MÉTODOS: Estudio de cohorte prospectivo realizado de enero de 2016 a enero de 2017 en el Hospital Civil de Guadalajara "Dr. Juan I. Menchaca". Se cuantificó la incidencia de muertes y las condiciones asociadas mediante un análisis multivariado con regresión logística. RESULTADOS: Se registraron 9366 nacidos vivos; fueron internados en la Unidad de Cuidados Neonatales el 15% (n: 1410). La mortalidad fue de 125,5 por 1000 recién nacidos internados (IC 95%: 109-144); las principales causas fueron malformaciones o enfermedades genéticas (28,2%), infecciones (24,9%) y síndrome de dificultad respiratoria (20,9%). Las condiciones asociadas a muerte fueron edad gestacional < 37 semanas (OR 2,41; IC 95%: 1,49-3,93), peso al nacer < 1500 gramos (OR 6,30; IC 95%: 4,159,55), dificultad respiratoria moderada/grave a los 10 minutos de vida (OR 1,89; IC 95%: 1,242,86), Apgar < 7 a los 5 minutos de vida (OR 9,40; IC 95%: 5,76-15,31), malformaciones congénitas (OR 5,52; IC 95%: 3,12-9,78) y menos de cinco consultas de control prenatal (OR 1,51; IC 95%: 1,09-2,08). CONCLUSIONES: El nacimiento prematuro, bajo peso al nacer, dificultad respiratoria, Apgar < 7, malformaciones congénitas y antecedente de < 5 consultas de control prenatal se asociaron con mayor riesgo de muerte.

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The aim of our study was to determine the frequency and type of associated congenital anomalies in patients with isolated gastroschisis born at the Dr. Juan I. Menchaca Civil Hospital of Guadalajara (Guadalajara, México), and to explore its possible association with the included outcome variables. One hundred-eight cases with isolated gastroschisis were reviewed from 2009 to 2014. The occurrence of intestinal and extraintestinal associated anomalies (either secondary or primary) was prospectively assessed. The type of gastroschisis, length of hospital stay (LOS), and in-hospital mortality were outcome variables for statistical analysis. Of infants with gastroschisis, 52 (48.1%) had one or more associated anomalies (AA), with increased odds in males (OR = 2.3, 95%CI: 1.1-5.0). AA classified, as secondary and primary were present in 34.3 and 5.6% of patients, respectively. Of secondary AA, 25.9% were intestinal anomalies, and 17.6% were extraintestinal. Primary AA were congenital heart disease (n = 3), meningomyelocele, and hydrocephaly and amniotic band sequence in one instance, respectively. Multivariate logistic regression showed that secondary AA (both intestinal and extraintestinal) were associated with complex gastroschisis, prolonged LOS, and in-hospital death, whereas primary AA were not related to a worse outcome. Our results highlight the pathogenic importance of properly investigating and categorizing the presence of others secondary or primary AA when diagnosis of gastroschisis is made.

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