[Prognostic utility of inflammatory indexes in critically ill newborns]. / Utilidad pronóstica de los índices inflamatorios en recién nacidos críticamente enfermos.

Background: Critically ill newborns (NB) are susceptible to serious complications due to their immature immune system. Objective: To know the prognostic utility of inflammatory indexes in critically ill NBs. Material and methods: Observational, analytical, longitudinal, prospective study. We included NBs hospitalized, critically ill and non-critically ill, who had a complete blood count at 12 hours of life (initial) and within 24 hours prior to discharge due to improvement or death (final). Systemic immune-inflammatory Index (SII), Neutrophil/Lymphocyte Ratio (NLR) and Platelets/Lymphocyte Ratio (PLR) were analyzed. There was follow-up from birth to discharge. Results: 211 patients of 33 (32-34) weeks of gestation, weight 1.569 (1.480-1.720) kg. 106 critical NB and 105 non-critical NB, with 50 deaths in the former group, were analyzed. The final NLR ≥ 1.38 (sensitivity [S] 58%, specificity [Sp] 58%, AUC 0.60 [p 0.006]) identified critically ill NBs compared to non-critical ill NBs; final NLR ≥ 1.84 (S 71%, Sp 71%, AUC 0.79 [p < 0.0001]) identified critically ill NBs who died compared to all those who survived; final SII ≥ 255.411 x 103 (S 55%, Sp 56%, AUC 0.60 [p 0.047]) and final NLR ≥ 1.75 (S 76%, Sp 76%, AUC 0.84 [p < 0.0001]) identified critical NBs who died from those who survived. Conclusion: The final NLR predicts which NBs may perish with respect to all who survive. The final NLR and SII predict among critically ill NBs who may die.

Introducción: los recién nacidos (RN) críticamente enfermos son susceptibles de mal pronóstico debido a su sistema inmunitario inmaduro. Objetivo: conocer la utilidad pronóstica de los índices inflamatorios en RN críticamente enfermos. Material y métodos: estudio observacional, analítico, longitudinal, prospectivo. Incluimos RN hospitalizados, críticamente enfermos y no críticos, que contaran con biometría hemática completa a las 12 horas de vida (inicial) y dentro de las 24 horas previas al egreso por mejoría o defunción (final). Se analizó el Índice inmunosistémico (IIS), neutrófilos linfocitos (INL) y plaquetas linfocitos (IPL). Hubo seguimiento desde el nacimiento hasta el egreso. Resultados: se analizaron 211 pacientes, de 33 (32-34) semanas de gestación, peso 1.569 (1.480-1.720) kg; 106 RN críticos y 105 no críticos, con 50 defunciones en los primeros. El INL final ≥ 1.38 (sensibilidad [S] 58%, especificidad [E] 58%, ABC 0.60 [p 0.006]) identificó RN críticamente enfermos con respecto a RN no críticos; INL final ≥1.84 (S 71%, E 71%, ABC 0.79 [p < 0.0001]) identificó RN críticamente enfermos que fallecieron con respecto a todos los que sobrevivieron; el IIS final ≥ 255.411 x 103 (S 55%, E 56%, ABC 0.60 [p 0.047]) e INL final ≥ 1.75 (S 76%, E 76%, ABC 0.84 [p < 0.0001]) identificaron a RN críticamente enfermos que fallecieron con respecto a los que sobrevivieron. Conclusiones: el INL final predice que RN pueden fallecer con respecto a todos los que sobreviven. El INL y el IIS finales predicen entre los RN críticamente enfermos quiénes pueden fallecer.

Pulse oximetry as a screening test for critical congenital heart disease in term newborns.

BACKGROUND: Pulse oximetry has been suggested as a screening test for congenital heart disease (CHD) in asymptomatic newborns. However, most newborns in Mexico are discharged from the hospital without this evaluation. OBJECTIVE: To evaluate pulse oximetry as a screening test for critical congenital heart disease (CCHD) in term newborns. METHODS: We conducted a cross-sectional study in term newborns between July 2010 and April 2011. Pulse oximetry was determined before hospital discharge; in case of post-ductal oxygen saturation < 95%, a Doppler echocardiogram was performed. RESULTS: From 1,037 newborns screened, two had CCHD, one had pulmonary atresia and ventricular septal defect, and one Ebstein´s anomaly. Minor CHD was present in 10 babies. The overall prevalence of CHD was 11.5 per 1000 live births, and the prevalence of CCHD was 3.9 per 1000 live births. For those with critical disease, pulse oximetry had a sensitivity of 100%, specificity 98.8%, positive predictive value 14.2%, negative predictive value 100%, and positive likelihood ratio of 86.2. In regression analysis, oxygen saturation, respiratory frequency, and postnatal age were related with CCHD. CONCLUSIONS: Pulse oximetry had a good sensitivity and specificity for the identification of critical congenital heart disease in term newborns. Low oxygen saturation, higher respiratory frequency, and early postnatal age were related with congenital heart disease.

Comorbilidad y letalidad en el primer año de vida en niños con atresia yeyunoileal / Co-morbidity and mortality during the first year of life in children with jejunoileal atresia

Objective. To identify the co-morbidity and mortality during the first year of life in children with jejunoileal atresia. Design. Descriptive, comparative cohort. Site. Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social. Population. Seventy children with jejunoileal atresia. Measures. Following variables were registered: gestational age, birth weight, sex, type and site of atresia, other congenital defects, surgical management, number of surgeries, duration of fasting, re-hospitalizations, weight and height at 6 months and one year of life, co-morbidity and mortality. Results. Intestinal atresia types I and II were present in 27% of the patients respectively and type IIIa in 24%. Co-morbidity in the neonatal period was 64.2%, being the most common conditions sepsis (47.1%) and anastomotic stricture (18.5%). During the first year of life co-morbidity was 51.4%, presented as functional intestinal obstruction (21.4%). Mortality was 11.4% (n = 8), the main causes of death were sepsis (n = 6) and liver failure (n = 2). The mortality rate according to the type of atresia was 44.4% for type IV, 33.3% for type IIIb and 1.3% for type I. Conclusions. Co-morbidity during the first year of life in children with jejunoileal atresia is high, and related to infections and anastomosis inherent problems. Mortality is higher for intestinal atresia type IV.

Objetivo. Identificar la comorbilidad y la letalidad durante el primer año de vida en niños con atresia yeyunoileal. Diseño. Cohorte descriptiva, comparativa. Lugar. Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS. Pacientes. Se estudiaron 70 niños. Mediciones. Se registraron las siguientes variables: edad gestacional, peso al nacimiento, sexo, tipo de atresia, sitio de la atresia, malformaciones asociadas, tratamiento quirúrgico, reintervenciones quirúrgicas, tiempo de ayuno, rehospitalizaciones, peso y talla a los seis meses y al año de edad, comorbilidad y letalidad. Resultados. La atresia tipo I y II se presentaron en 27% cada una y la tipo IIIa en 24%. La comorbilidad en el periodo neonatal fue de 64.2%, las causas más frecuentes fueron sepsis (47.1%) y estenosis de la anastomosis (18.5%) y en el primer año de vida fue de 51.4%; la causa más frecuente fue oclusión intestinal funcional (21.4%). La letalidad fue de 11.4% (n = 8); las principales causas de muerte fueron sepsis (n = 6), e insuficiencia hepática (n = 2). La letalidad por tipo de atresia fue de 44.4% en la tipo IV, 33.3% en la IIIb y 10.5% en la tipo I. Conclusiones. La comorbilidad en el primer año de vida en niños con atresia intestinal fue elevada, las principales causas fueron infecciosas y problemas inherentes a la anastomosis. La atresia con mayor letalidad fue la tipo IV.

[Co-morbidity and mortality during the first year of life in children with jejunoileal atresia]. / Comorbilidad y letalidad en el primer año de vida en niños con atresia yeyunoileal.

OBJECTIVE: To identify the co-morbidity and mortality during the first year of life in children with jejunoileal atresia. DESIGN: Descriptive, comparative cohort. SITE: Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social. POPULATION: Seventy children with jejunoileal atresia. MEASURES: Following variables were registered: gestational age, birth weight, sex, type and site of atresia, other congenital defects, surgical management, number of surgeries, duration of fasting, re-hospitalizations, weight and height at 6 months and one year of life, co-morbidity and mortality. RESULTS: Intestinal atresia types I and II were present in 27% of the patients respectively and type IIIa in 24%. Co-morbidity in the neonatal period was 64.2%, being the most common conditions sepsis (47.1%) and anastomotic stricture (18.5%). During the first year of life co-morbidity was 51.4%, presented as functional intestinal obstruction (21.4%). Mortality was 11.4% (n = 8), the main causes of death were sepsis (n = 6) and liver failure (n = 2). The mortality rate according to the type of atresia was 44.4% for type IV, 33.3% for type IIIb and 1.3% for type I. CONCLUSIONS: Co-morbidity during the first year of life in children with jejunoileal atresia is high, and related to infections and anastomosis inherent problems. Mortality is higher for intestinal atresia type IV.