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1.
Saudi Journal of Gastroenterology [The]. 2012; 18 (1): 40-43
Dans Anglais | IMEMR | ID: emr-162780

Résumé

Among the various methods for evaluating gastric emptying, the real-time ultrasound is safe, does not require intubation, or rely on either radiologic or radionuclide technique. The aim of our work was to measure the gastric emptying in pediatric patients with portal hypertension by using the real-time ultrasound. Forty patients with portal hypertension with mean age 7 +/- 2.8 years and 20 healthy children as a control group underwent gastric emptying study by using real-time ultrasound. The cross-sectional area of the gastric antrum was measured in the fasting state and then each subject was allowed to drink tap water then calculated by using formula area [longitudinal anteroposterior diameter/4]. The intragastric volume was assumed to be directly proportional to the cross-sectional area of the antrum. The mean gastric emptying half-time volume was significantly delayed in portal hypertension patients [40 +/- 6.8 min] compared with the control subjects [27.1 +/- 3.6] min [P<0.05]. Patients with extrahepatic portal vein obstruction had significant delayed gastric emptying in comparison to patients with portal hypertension due to other etiologies [36.14 +/- 4.9 vs 44.41 +/- 6.04 min; P<0.01]. Ultrasound is a noninvasive and a reliable method for measuring gastric emptying in pediatric patients. Gastric emptying was significantly delayed in patients with portal hypertension. Etiology of portal hypertension may influence gastric emptying time in patients with chronic liver disease

2.
Saudi Journal of Gastroenterology [The]. 2011; 17 (1): 40-46
Dans Anglais | IMEMR | ID: emr-112926

Résumé

Pediatric non-alcoholic fatty liver disease [NAFLD] is a global problem which has been increasingly recognized with the dramatic rise in pediatric obesity. The aim of the present study was to identify the clinical, sonographic, and biochemical predictors for NAFLD in obese children. Seventy-six children [2-15 years] were included after an informed consent. All were subjected to full anthropometric assessment [including height, weight, body mass index, subscapular skin fold thickness, waist and hip circumference and calculation of waist: hip ratio], biochemical assessment of liver function tests, lipid profile and insulin: Sixteen patients [21%] had elevated ALT and 6 [7.9%] had elevated AST. Significant dyslipidemia [low HDL-c, high total cholesterol, high LDL-c and triglycerides] and higher insulin resistance were found in obese patients [P<0.01]. The main sonographic findings were hepatomegaly in 20 patients [26.3%] and echogenic liver in 41 patients [53.9%]. Liver biopsy showed simple steatosis in eight cases [24.2%] and non-alcoholic steatohepatitis [NASH] in seven cases [21.2%]. Anthropometric measurements, increased hepatic echogenicty by ultrasound, insulin resistance and lipid profile were good predictors of NAFLD in obese children if assessed together. However, LDL-c was the only sensitive predictor [independent variable] for NAFLD in both uni- and multivariate logistic regression analyses. Dyslipidemia per se is a strong predictor of NAFLD among obese Egyptian children


Sujets)
Humains , Mâle , Femelle , Stéatose hépatique/épidémiologie , Surpoids/sang , Dyslipidémies/étiologie , Enfant , Marqueurs biologiques , Lipides/sang , Poids et mesures du corps , Anthropométrie
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