THE electrocardiographic picture of prolonged QRS-complex duration with short PR interval was the subject of isolated reports 1,2 until Wolff, Parkinson and White 3 described the clinical syndrome of ...
The rhythm is irregular, but the long intervals are the same (↔) and the short intervals (┌┐) are the same. One premature QRS complex (↑) is observed. Therefore, the rhythm is regularly irregular. The ...
February 4, 2004 — Is it time to redefine the role of QRS duration as a predictor of response to cardiac resynchronization therapy (CRT)? According to 2 recent studies published in the Journal of the ...
To test the hypothesis that fetuses exposed to maternal preeclampsia or chronic hypertension have deranged development of cardiac time intervals. Pregnancies were divided into three groups: ...
We describe the case of a previously healthy adolescent female who presented with chest discomfort and near-syncope, accompanied by trifascicular block and hypotension. Her clinical condition rapidly ...
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