Irregular Cardiac Rhythm with Wide Qrs Complexes

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...

Irregular cardiac rhythm in a woman with asthma.

Proc (Bayl Univ Med Cent) 2012;25(2):159–160 A n obese (height, 62 inches; weight, 252 lb; body mass index, 46.2 kg/m2) 54-year-old woman with longstanding asthma and chronic cigarette smoking came to the hospital with an acute asthma attack manifested by dyspnea, wheezing, and chest tightness. Her electrocardiogram showed an irregular atrial tachycardia (114 P waves/minute) with multiple P-wav...

Irregular wide QRS complex tachycardia in a patient with pulmonary hypertension: What is the mechanism?

Introduction Pulmonary hypertension (PH) results in right ventricular (RV) hypertrophy and dilation that could lead to the development of arrhythmogenic substrates for cardiac arrhythmias, which are important predictors and contributors to morbidity and mortality in these patients. To date, the mechanism of ventricular arrhythmia in patients with PH are less well understood. Here, we reported a...

Wide QRS Rhythm in a Young Woman with Recurrent Palpitations: what is the diagnosis?

A narrow QRS gallop rhythm

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...