Influence of pH on tone and motility of isolated strips of rat fundus and pylorus compared with other parts of alimentary tract.
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We reviewed the abdominal sonograms of thirty three infants presenting with vomiting. Thirty patients were clinically suspected of having hypertrophic pyloric stenosis. The thickened pyloric muscle was seen as a hypoechoic mass with strong central echoes, situated medial to the gallbladder, and anterior to the right kidney and caval vein, in transverse and longitudinal sections respectively. The muscle thickness measured between 3.8 and 7 mm. These findings were found in thirty infants, in 27 of whom the diagnosis was clinically suspected, and the other three were presumed to have gastroesophageal reflux. All of them had subsequent confirmation of hypertrophic pyloric stenosis by upper gastrointestinal tract examination and/or surgery. Real time ultrasound is considered a useful, quick, reliable and non invasive method to confirm the hypertrophic pyloric stenosis in infants with vomiting.
Ten infants with a clinical history of hypertrophic pyloric stenosis were examined sonographically. Upper gastrointestinal series were also performed on these patients. The authors comment on the findings, and the value of ultrasound examination in the diagnosis of hypertrophic pyloric stenosis.
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