An unusual cause of massive hemothorax.
نویسندگان
چکیده
terval and tend to convert it into an RP interval. Antegrade block (depression of the impulse conduction to the ventricle) will prolong PR interval and tend to convert an RP into a PR interval. They reported one case with antegrade block, the PR interval measuring 0.18 sec. Vakil3 reported two cases of atrioventricular nodal rhythm with antegrade block. One of them, an elderly, hypertensive patient with acute pulmonary edema, had a PR interval of 0.16 second. The other patient showed three different types of rhythm besides normal sinus rhythm, namely (a) uncomplicated upper nodal rhythm, (b) nodal tachycardia with two to one atrioventricular antegrade block, and (c) nodal tachycardia with instances of two to one block, first degree heart block and nodal pause. The PR interval of the case was 0.09-0.10 sec. One complex showed a PR interval of 0.20 sec. followed by retrograde P wave. Bix#{176} reported three interesting cases of nodal rhythm with A-V block. One of them showed A-V nodal rhythm with A-V block in form of Wenckebach phenomenon. The electrocardiogram of our patient showed A-V nodal rhythm with antegrade block, in which PR interval measured 0.25 seconds. This is a larger PR interval associated with atrioventricular nodal rhythm with antegrade block than we could find in any other paper.
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ورودعنوان ژورنال:
- Diseases of the chest
دوره 33 3 شماره
صفحات -
تاریخ انتشار 1958