Narrow QRS complexes intervening wide QRS complexes
نویسندگان
چکیده
منابع مشابه
Wide and narrow QRS complexes after arthroscopy.
A n obese (5 feet 5 inches, 224 pounds) 57-year-old woman with high blood pressure, diabetes mellitus, and arthritis underwent arthroscopy for a painful left knee. After the procedure, the electrocardiographic monitor in the recovery room showed alternately narrowing and widening QRS complexes, and a 12-lead electrocardiogram was obtained (Figure). e first three QRS complexes are wide (0.17 se...
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gram. Tachyeardias originating in the left bundle branch and documented by right, left, and His bundle recordings have been produced in animals given excessive digitalis. We have noted a similar tachycardia in a patient with ischemic heart disease receiving digitalis during hypokalemia. The QRS complexes were 0.10 sec in duration and by contour suggested an ectopic focus located in the posterio...
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The QRS complexes 1, 2, 4, 5 and 7 are not preceded by atrial activation. The QRS morphology is slightly different from an A-V conducted beat (QRS 3, 6). Therefore an origin in the bundle branch system is presumed for beats 1, 2, 4, 5 and 7. An escape beat (QRS 2, 5) is retrogradely conducted to the atrium with atrial activation followed by AV conduction and ventricular capture (#3, 6). This ph...
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ژورنال
عنوان ژورنال: Netherlands Heart Journal
سال: 2012
ISSN: 1568-5888,1876-6250
DOI: 10.1007/s12471-012-0338-y