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1.
J Clin Ultrasound ; 26(5): 257-9, 1998 Jun.
Article in English | MEDLINE | ID: mdl-9608369

ABSTRACT

PURPOSE: This study reports the sonographic features of the pancreas in children who have dengue hemorrhagic fever (DHF) with epigastric pain, evaluates pancreatic abnormalities as the source of this pain, and relates sonographic findings, DHF status, and serum levels of amylase and lipase. METHODS: Over 3.5 years, real-time sonographic examination of the pancreas was prospectively performed in 148 children (age range, 5 months-14 years) who had DHF with epigastric pain. The DHF diagnosis was confirmed by serologic examination and viral isolation. RESULTS: Of the 142 children included in this study, 72 had mild DHF (grade I or II) and 70 had severe DHF (grade III or IV). An enlarged pancreas was found in 41 patients (29%), 10 (14%) of whom had mild DHF and 31 (44%) of whom had severe DHF. The pancreas was hyperechoic relative to the liver in 36 patients (25%), isoechoic in 98 (69%), and hypoechoic in 8 (6%). CONCLUSIONS: The majority of patients with DHF and epigastric pain do not have an enlarged pancreas, different echogenicity of the pancreas compared with the liver, or a dilated pancreatic duct. Thus, pathologic changes of the pancreas cannot be the only cause of epigastric pain in DHF patients. Increased serum levels of amylase and lipase are commonly seen in patients with severe DHF and an enlarged pancreas.


Subject(s)
Abdominal Pain/etiology , Pancreatic Diseases/diagnostic imaging , Pancreatitis/diagnostic imaging , Severe Dengue/diagnostic imaging , Adolescent , Amylases/blood , Case-Control Studies , Child , Child, Preschool , Humans , Infant , Lipase/blood , Pancreatic Diseases/complications , Pancreatic Diseases/diagnosis , Pancreatitis/complications , Pancreatitis/diagnosis , Prospective Studies , Severe Dengue/complications , Ultrasonography
2.
Pediatr Radiol ; 28(1): 1-4, 1998 Jan.
Article in English | MEDLINE | ID: mdl-9426264

ABSTRACT

In a prospective study, the relationship between the clinical severity of dengue haemorrhagic fever (DHF) and the sonographic findings was examined. The study comprised 73 cases classified as mild (grades I-II) and 75 as severe (grades III-IV). Ultrasonography in the mild group revealed pleural effusions in 30%, ascites in 34%, gallbladder wall thickening in 32%, hepatomegaly in 49%, splenomegaly in 16%, and pancreatic enlargement in 14%. In the severe group, pleural effusions, ascites and gallbladder wall thickening were found in 95%, pararenal and perirenal fluid collections in 77%, hepatic and splenic subcapsular fluid collections in 9%, pericardial effusion in 8%, hepatomegaly in 56%, splenomegaly in 16%, and pancreatic gland enlargement in 44%. Ultrasound may be useful for early prediction of the severity of DHF in children.


Subject(s)
Severe Dengue/diagnostic imaging , Adolescent , Ascites/diagnostic imaging , Child , Child, Preschool , Female , Gallbladder/diagnostic imaging , Hepatomegaly/diagnostic imaging , Humans , Infant , Male , Pancreas/diagnostic imaging , Pleural Effusion/diagnostic imaging , Prospective Studies , Severity of Illness Index , Splenomegaly/diagnostic imaging , Ultrasonography
3.
J Clin Ultrasound ; 23(6): 357-62, 1995.
Article in English | MEDLINE | ID: mdl-7673451

ABSTRACT

This study attempts to investigate whether gallbladder wall thickening (GBWT) measured by ultrasonography can be used in children as a reliable criterion to predict the onset of severe dengue hemorrhage fever (DHF). In this prospective study, we performed ultrasound examinations focusing on the gallbladder wall and the presence of intraperitoneal free fluid in 48 mild DHF cases (grades I-II) and 48 severe cases (grades III-IV). GBWT varied between 1 mm and 8 mm with a mean of 3.77 mm +/- 2.04 mm. The mean value of DHF grades I and II (2.39 mm +/- 1.48 mm) is significantly lower than that of grades III and IV (5.14 mm +/- 1.54 mm), p < 0.001. GBWT exceeded 3 mm in only 16 of 48 (33.3%) grade I-II patients and in 45 of 48 (93.8%) grade III-IV patients. A significant positive correlation was apparent between GBWT and the severity of illness, p < 0.001. Patients with ascites have significantly thicker gallbladder walls than those without, p < 0.01. In clinically confirmed DHF cases, the sonographic finding of GBWT > 3 mm to 5 mm, with 93.8% sensitivity, can be used as a criterion indicating the need for admission and monitoring. A GBWT of > or = 5 mm, with 91.7% specificity, is useful as a criterion for identifying DHF patients at high risk of developing hypovolemic shock.


Subject(s)
Dengue/complications , Gallbladder Diseases/etiology , Gallbladder/diagnostic imaging , Adolescent , Child , Child, Preschool , Dengue/physiopathology , Gallbladder/pathology , Gallbladder Diseases/diagnostic imaging , Humans , Linear Models , Prognosis , Prospective Studies , Sensitivity and Specificity , Severity of Illness Index , Ultrasonography
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