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ARTICLE |

OBSTRUCTION OF A CORONARY ARTERY DUE TO THE PRESSURE FROM A CALCIFIED NODULE IN THE MYOCARDIUM

Frederick W. Niehaus, M.D.
JAMA. 1935;104(24):2171-2173. doi:10.1001/jama.1935.92760240001011.
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Coronary occlusion due to disease of the coronary arteries has been extensively studied and described. Calcified nodules1 in the myocardium have also been investigated, even by the less recent pathologists. Mönckeberg2 mentions disturbances of conduction due to such nodules by pressure on or by involvement of a branch of the conduction system. Hochrein3 points out that calcified stenotic mitral valves, by distorting the sinuses of Valsalva, may more or less interfere with the coronary circulation. A fairly extensive search of the literature fails to reveal a record of an obstruction of a healthy coronary artery due to pressure from a source outside the vascular wall. This seemed justification for recording the following case:

H. T. M., a man, aged 42, admitted to the Lutheran Hospital, May 12, 1933, in the service of Dr. H. A. Wigton, was having delusions of persecution and was restrained with considerable difficulty. His temperature

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