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1.
Ned Tijdschr Geneeskd ; 160: A9597, 2016.
Article in Dutch | MEDLINE | ID: mdl-27229690

ABSTRACT

A 4-year-old boy was admitted to our hospital with abdominal pain, vomiting and weight loss. After a period of diarrhoea, he was now constipated. Micturition was painful but there were no abnormalities in the urine. Blood test showed no signs of infection or elevated liver enzymes. Signs of cholecystitis were seen on abdominal ultrasound, but this diagnosis was ignored because of the low incidence of cholecystitis in children and the absence of abnormal liver enzymes and infection parameters. Other diagnostic investigations were carried out, but no cause could be found for his symptoms. His condition worsened during the hospital stay, and liver enzymes and infection parameters became abnormal. An abdominal laparoscopy was finally performed, and a perforation in the presence of a necrotizing cholecystitis was seen. This case shows that one should never ignore a diagnostic report even if the diagnosis has low prevalence.


Subject(s)
Abdominal Pain/etiology , Cholecystitis/complications , Cholecystitis/diagnosis , Diagnostic Errors , Vomiting/etiology , Child, Preschool , Humans , Laparoscopy , Male , Weight Loss
2.
Biol Neonate ; 87(4): 296-307, 2005.
Article in English | MEDLINE | ID: mdl-15985752

ABSTRACT

With the use of stable isotope-labeled intravenous precursors for surfactant phosphatidylcholine (PC) synthesis, it has been shown that the de novo synthesis rates in preterm infants with respiratory distress syndrome (RDS) are very low as are turnover rates. This is consistent with animal data. Surfactant therapy does not inhibit endogenous surfactant synthesis, and prenatal corticosteroids stimulate it. With the use of stable isotope-labeled PC given endotracheally, surfactant pool size was estimated. It turned out to be low in RDS, as expected. Similar studies were performed in term neonates with severe lung diseases. In general, patients with lung injury show a lower surfactant synthesis. The controversy around surfactant in congenital diaphragmatic hernia (CDH) persists: studies on CDH with and without extracorporeal membrane oxygenation yielded different results. In severe meconium aspiration syndrome surfactant synthesis was found to be decreased but surfactant pool size was maintained. It is possible and safe to study surfactant metabolism in human neonates with the use of stable isotopes. This can help in answering clinical questions and has the potential to bring new in vitro and animal findings about surfactant metabolism to the patient.


Subject(s)
Infant, Newborn/metabolism , Pulmonary Surfactants/metabolism , Respiratory Distress Syndrome, Newborn/metabolism , Adrenal Cortex Hormones/therapeutic use , Animals , Hernia, Diaphragmatic/drug therapy , Hernia, Diaphragmatic/metabolism , Hernia, Diaphragmatic/physiopathology , Humans , Infant, Premature , Kinetics , Meconium Aspiration Syndrome/drug therapy , Meconium Aspiration Syndrome/metabolism , Meconium Aspiration Syndrome/physiopathology , Pulmonary Surfactants/therapeutic use , Respiratory Distress Syndrome, Newborn/drug therapy , Respiratory Distress Syndrome, Newborn/physiopathology
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