Anatomic and Electrocardiographic Position the （解剖和心电图描记的位置）.pdf

Anatomic and Electrocardiographic Position of the Heart BY NOBLE 0. FOWLEIR, M.D., AND JOHN R. BRAUNSTEIN, M.D. Thirty-four patients were studied by electrocardiogram for electrical position of the heart, and by x-ray and angiocardiogram for anatomic position of the heart. A significant association between electrocardiographic and anatomic positions of the heart was found insofar as rotation about the anteroposterior and longitudinal axes is concerned. No association between electrocardiographic and anatomic positions was found with regard to rotation about the transverse axis. THE HEART may rotate about three berger1 described criteria for determining the anatomic axes: anteroposterior, becom- position of the heart with rotation about its D o w ing horizontal or vertical in position; three axes, using the unipolar extremity and n l o longitudinal, becoming clockwise or counter- precordial leads. a d e clockwise in position as viewed from the apex; However, there have been few studies of d f r and transverse, causing the apex to move for- the correlation between the electrocardio- o m ward or backward. This is illustrated in figures graphic and anatomic positions of the heart in h t t p 1, 2, and 3. This study was undertaken in man. In 1946, Hyman, Failey, and Ashman6 : / / c i order to ascertain