The presence of coronary aneurysms was significantly and positively correlated with male gender, IVIG resistance, inotrope treatment, cardiac failure, abdominal pain and neurological symptoms. IVIG-resistant patients had higher neutrophil : lymphocyte ratio. Abdominal symptoms, hypoalbuminemia and elevated C-reactive protein were present in almost all of the patients. Multisystem involvement with atypical presentation in KDSS is frequent. An important differential diagnosis is TSS. Mechanical ventilation, gastrointestinal and neurological symptoms were associated with IVIG resistance and the presence of coronary aneurysms. The first line of treatment includes IVIG and pulse corticosteroids; in severe cases, infliximab, anakinra, cyclosporine or plasmapheresis are alternative treatment options.

Abstract.A cross-sectional survey of the seroprevalence of hepatitis B virus (HBV) markers among healthy people was conducted in San Juanito, a rural community in the northern state of Chihuahua, Mexico. The overall prevalence in 970 people was 6.6% for antibody to hepatitis B core antigen. There was an age effect on the prevalence of HBV infection, and a gradual increase in prevalence was observed in patients up to the age of 40 years. Those subjects with a history of dental procedures had a 2-fold higher risk for HBV infection (odds ratio [OR], 2.4; 95% confidence intervals [CI], 1.01-5.86), and there was a 74% increased risk for each blood product transfusion (OR, 1.74; 95% CI, 1.09-2.77). Horizontal transmission seems to be the major source of endemicity in San Juanito because no woman was a chronic carrier. To lower HBV transmission rate, an adequate active screening program for blood donors should be implemented, together with a universal infant immunization program.

Children with FE(NO)<20 ppb had significantly higher scores on the ACT/C-ACT than those with FE(NO) ≥ 20 ppb (median [interquartile range] :23 [20.8-25] vs. 21 [18-24], p = .002, respectively). Compared to children with FE(NO) ≥20 ppb, those with FE(NO) <20 ppb had a higher baseline predicted forced expiratory volume (FEV(1)) [94% (92.5%-99.4%) vs. 83% (81%-89.9%), p = .001] and a lower probability of having a positive ECT (42.7% vs. 71.2%, p = .001). In addition, FE(NO) was significantly inversely correlated with the participants' ACT/C-ACT score and predicted FEV1, and directly correlated with positive ECT, CONCLUSION: Among Mexican children with persistent asthma, low levels of FE(NO) ( <20 ppb) are associated with better asthma control, and higher lung function.

con diagnóstico de atresia esofágica que ingresaron a dicho nosocomio durante un periodo de 2 años. Se analizaron variables como sexo, edad gestacional, peso al nacer, Apgar, tipo de atresia, malformaciones congénitas asociadas, complicaciones durante la estancia hospitalaria y aspectos relacionados con los padres. Resultados: Se estudiaron 12 pacientes, de los cuales el 50% eran de sexo masculino, y la mayoría de ellos fueron producto a término con peso adecuado al nacimiento. Predominio de etnia mestiza, hijos de madres jóvenes con nivel socioeconómico medio, sin predominio geográfico. El 82% de los casos correspondían a atresia esofágica tipo III, y las malformaciones congénitas más frecuentes asociadas fueron las cardiacas en el 83% de los casos, de las cuales el 90% correspondían a defectos del tabique auricular. Conclusiones: La atresia esofágica es una malformación congénita relativamente común y de etiología multifactorial. Es necesario realizar un abordaje completo de los pacientes con esta patología para poder identificar otra afección y brindar el tratamiento adecuado.

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