The effect of deep inbreathing on lead III of the electrocardiogram.
نویسنده
چکیده
The influence of the position of the heart on the form of the electrocardiogram has been known for close on halfa century. It was discussed by Waller (1913 and 1914) and more fully by Einthoven et al. (1913), but the bearing of this fact on the diagnosis of heart disease has not received much attention. The effects of deep inbreathing on the tracing are found to be common, especially in lead III, showing that this lead may deceive if studied without regard to the lie of the heart in the chest. It was decided to test the effect of deep inspiration on lead III, both in health and in patients with heart disease, and the results of such observations are here described.
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ورودعنوان ژورنال:
- British heart journal
دوره 13 4 شماره
صفحات -
تاریخ انتشار 1951