Résumé
PURPOSE: Ventricular late potentials have been shown to predict malignant ventricular arrhythmia and sudden cardiac death in patients with myocardial infarction and cardiomyopathy. Low amplitude and high frequency potentials at the end of the QRS complex can be detected on the body surface using signal-averaged electrocardiogram(SAECG). This study determines the age-related criteria of SAECG parameters and age-related differences. METHODS: SAECGs were obtained in 58 healthy children in five age groups(98ms, RMS4027ms, and LD>40ms for 109ms, RMS4020ms, and LD>49ms for 1-11mo; f-QRS>114ms, RMS4033ms, and LD>39ms for 1-5yr; f-QRS>112ms, RMS4030ms, and LD>45ms for 6-11yr; f-QRS>117ms, RMS4037ms, and LD>30ms for 12-15yr. RMS40 and LAS correlated with f-QRS duration(r=-0.75, and 0.45 respectively, P<0.05), suggesting that these parameters are associated with ventricular muscle thickness and ventricular conduction time. CONCLUSION: Age-related differences in SAECG parameters may be due to ventricular muscle thickness and ventricular conduction time. This should be considered for the evaluation of ventricular late potential.
Sujets)
Enfant , Humains , Troubles du rythme cardiaque , Cardiomyopathies , Mort subite cardiaque , Électrocardiographie , Infarctus du myocarde , BruitRésumé
Congenital bronchoesophageal fistula associated esophageal atresia usually presents in the newborn period or infancy but those without esophageal atresia are more insidious in disease process. Symptoms which include cough, hemoptysis, choking on swallowing liquids, uncommonly dysphagia, and epigastric discomfort may not begin until adult life. Most of the cases are curative unless there are serious underlying conditions. The diagnosis is usually made by gastroesophagoscopy, esophagogram, bronchogram and bronchoscopy. And the most of the cases can be cured by fistulectomy and resection of involved pulmonary lobes. We experienced one case of congenital bronchoesophageal fistula which occurred in a 13- year-old girl who complained of paroxysmal cough and intermittent hematemesis for 3 years.
Sujets)
Adulte , Enfant , Femelle , Humains , Nouveau-né , Obstruction des voies aériennes , Bronchoscopie , Toux , Déglutition , Troubles de la déglutition , Diagnostic , Atrésie de l'oesophage , Fistule , Hématémèse , HémoptysieRésumé
PURPOSE: Measles infection in children has been known to have many complications including hepatitis. But there has been no appropriate study about measles hepatitis in children. So we studied to facilitate the understanding of measles hepatitis in children by analyzing their clinical features and laboratory findings. METHODS: We investigated 164 patients who were admitted to the Department of Pediatrics, Seoul Red Cross Hospital due to measles from January 1985 to December 1994. We excluded other factors such as hepatitis A, B, C virus, Epstein-Barr virus and cytomegalovirus which could also result in hepatitis. According to the presence and the absence of coexistent complications 22 measles hepatitis patients were divided into two groups in which clinical characteristics and laboratory findings were analyzed as well. RESULTS: 1)Of total 164 patients there were 26 patients(15.9%) with measles hepatitis. 2)The ratio of male to female was 1.8:1. The range of age distribution was 6 months to thirteen years, and patients from 6 months to 3 years of age occupied 50% of the total patients. 3)The mean values of serum AST and ALT levels were 151+/-17.6 IU/L and 185+/-36.6 IU/L, espectively. And they were detected at 4.4+/-2.4 days after the first symptoms of measles were developed. 4)Major clinical characteristics were diarrhea in 22.7%, vomiting in 13.6%, hepatomegaly in 9.1%, and splenomegaly in 4.5%. Jaundice was not detected. 5)There was no difference between two groups in terms of serum albumin, globulin, bilirubin, AST and ALT(p>0.05). 6)Elevated serum AST and ALT levels returned to normal values within 2 weeks in 87.5%. CONCLUSIONS: Measles hepatitis develops with favorable outcome. Liver function test may well be done in cases of measles infection because hepatic dysfunction does not uncommonly occur in measles infection. Further study for the difference of the incidence of measles hepatitis according to the measles epidemics should be performed.
Sujets)
Enfant , Femelle , Humains , Mâle , Répartition par âge , Bilirubine , Cytomegalovirus , Diarrhée , Hépatite A , Hépatite , Hépatomégalie , Herpèsvirus humain de type 4 , Incidence , Ictère , Tests de la fonction hépatique , Rougeole , Pédiatrie , Croix-Rouge , Valeurs de référence , Séoul , Sérumalbumine , Splénomégalie , VomissementRésumé
No abstract available.