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KMID : 0360919610040030073
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Journal of the Korean Medical Association
1961 Volume.4 No. 3 p.73 ~ p.77
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Two Cases of W-P-W Syndrome Accmpanied by Paroxysmal Auricular Tachycardia
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白龜鉉/Paik, Koo Hyun
李聖浩/Lee, Sung Ho
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Abstract
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The essential diagnostic feature of W P-W syndroms is a distinctive. electrocardiogram in which (1), the P-R interval is abbreviated, measuring 0, 10 second or less; (2) -the :QRS complexes, are widened (0, 11 to 0,14 second); (3). there is slurring at the onset of th upstroke of the, R wave, termed the "DELTA WAVE".
There is no distinctive clinical picture except for the attack of paroxysmal tachycardia in the vast majority.
The distinctive electrocardiographic features way disappear spontaneously, as a result of atropine, quinidine, procaine amide or amyl nitrite, or when the heart rate is increased by exercise.
Although the subjects with W-P-W syndrome are almost always free of organic heart disease, but the condition is not always benign, even in the absence of organic heart disease, for deaths have occurred suddenly, in the course of an attack of paroxysmal tacycardia rarely.
And W-P-W syndrome is not a contraindication to normal activity, pregnancy, operations and the like.
Two cases of W-P-W syndrome, with paroxysmal atrial tacycardia which are free of- organic ´heart disease are reported. The electrocardiograms of two cases showed typical W-P-W syndrome patterns.
In one case, the attack of paroxysmal atrial tachycardia is subsided by valsalva test easily. And .in other case, the distinctive electrocardiographic features are disappeared temporaly, as a result of atropine injection and Master´s 2 step exercise test.
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