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October 1933


Arch Otolaryngol. 1933;18(4):559-561. doi:10.1001/archotol.1933.03580060591015

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PREVENTRICULOSIS (SO-CALLED CARDIOSPASM): DIAGNOSIS AND TREATMENT (MOVING PICTURE DEMONSTRATION). DR. CHEVALIER L. JACKSON.  The film showed briefly the physiology of swallowing and then the pathologic physiology of preventriculosis. "Preventriculosis" is the term preferred by Chevalier Jackson to designate the condition commonly known as "cardiospasm."The etiology and pathogenesis of this condition have not been entirely determined, but in typical cases of this disease there occurs a functional stenosis at the level of the diaphragm, associated with more or less dilatation of the esophagus above. The diaphragmatic pinch-cock, probably composed chiefly of the crura of the diaphragm, fails to open as it normally should in the deglutitory cycle, though on passage of an esophagoscope or other instrument no more than the usual resistance is met with at this point.The typical roentgenographic appearances of preventriculosis were then shown. While roentgen examination is of great diagnostic aid, the diagnosis should always be

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