The data which form the basis of this paper have been derived from a study of 133 cases of pyloric stenosis in infants who have been treated in the wards and private rooms of the Babies' Hospital in my own practice and that of my colleagues, and eight cases which I have seen with physicians outside the hospital, making 141 in all. Of the fatal cases, the stomach has been examined at necropsy in thirty-five. Microscopic examinations of the stomach have been made in twelve cases by Dr. Wollstein, pathologist to the hospital. Of the infants who recovered, three have been lost sight of; ten died subsequently from other conditions; the remaining sixty-four have been followed almost up to the date of writing, twelve of them for a period of four years or over.
Pyloric stenosis of infancy has been regarded by some writers as essentially a condition of tonic
HOLT LE. HYPERTROPHIC STENOSIS IN INFANTS. JAMA. 1917;LXVIII(21):1517–1524. doi:10.1001/jama.1917.04270050219001
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