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February 1, 1985

Recurrent Vomiting in a Child

Author Affiliations

St Paul Ramsey Medical Center

JAMA. 1985;253(5):634-635. doi:10.1001/jama.1985.03350290036015

To the Editor.—  In the QUESTION AND ANSWER section1 of the Sept 7, 1984, issue of The Journal, the evaluation of recurrent vomiting in a child is discussed.When evaluating a child for recurrent vomiting, careful consideration should also be given to the possibility of intermittent hydronephrosis. A child with partial ureteral pelvic junction obstruction can produce hydronephrosis sufficient to cause vomiting that then resolves with dehydration. Examination while in the hospital often shows a normal collecting system bilaterally. A diuretic challenge of this collecting system is sometimes necessary to detect the inadequacy of the ureteral pelvic junction.