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Wide QRS Complex Tachycardia [PDF]
AACN Advanced Critical Care, 1992 Electrocardiographic monitoring for dysrhythmias is a major responsibility of critical care nurses, and patients with wide QRS complex tachycardias present a challenge. Criteria for differentiating the impulse origin as ventricular or supraventricular are well documented: QRS duration, QRS morphology, QRS axis, and presence of atrioventricular ...
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THE QRS COMPLEX OF THE ELECTROCARDIOGRAM
Archives of Internal Medicine, 1943The electrocardiogram is a photographic record of the differences in electrical potential existing between two points on the body surface at every instant during the time the record is being taken. On the ordinates of the record one reads the potential differences; on the abscissas the time is given.
Richard Ashman, Manuel Gardberg
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Narrow QRS Complex Tachycardias
Mayo Clinic Proceedings, 1995Regular narrow QRS complex tachycardias are a common problem encountered by general internists or family practitioners. Although such tachycardias often occur in patients with a normal heart and seldom represent life-threatening conditions, they may cause bothersome symptoms.
Stephen J. Pieper, Marshall S. Stanton
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Medical Clinics of North America, 2001
Wide QRS complex tachycardia is a common clinical occurrence and presents a diagnostic challenge for the physician. History, physical examination, chest radiographs, and electrocardiographic analysis are important in making the correct diagnosis. Diagnosis of ventricular tachycardia is supported by history of prior myocardial infarction or congestive ...
Ranjan K. Thakur, Anoop K. Gupta
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Wide QRS complex tachycardia is a common clinical occurrence and presents a diagnostic challenge for the physician. History, physical examination, chest radiographs, and electrocardiographic analysis are important in making the correct diagnosis. Diagnosis of ventricular tachycardia is supported by history of prior myocardial infarction or congestive ...
Ranjan K. Thakur, Anoop K. Gupta
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The American Journal of Cardiology, 2018
In a man with a wide-QRS complex tachycardia, a history of an inferior left ventricular scar, atrioventricular dissociation during the tachycardia, and a QRS morphology inconsistent with right or left bundle branch block exclude a diagnosis of supraventricular tachycardia with aberrant ventricular conduction due to bundle branch block or ventricular ...
Elias B. Hanna +2 more
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In a man with a wide-QRS complex tachycardia, a history of an inferior left ventricular scar, atrioventricular dissociation during the tachycardia, and a QRS morphology inconsistent with right or left bundle branch block exclude a diagnosis of supraventricular tachycardia with aberrant ventricular conduction due to bundle branch block or ventricular ...
Elias B. Hanna +2 more
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Narrow QRS Complex Tachycardias
AACN Advanced Critical Care, 2007Narrow QRS complex tachycardias are either atrioventricular (AV) nodal passive or AV nodal active. AV nodal passive tachycardias do not require the participation of the AV node in maintenance of the tachycardia. Examples are atrial tachycardia, atrial flutter, and atrial fibrillation.
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Hospital Practice, 1984
A 65-year-old man is seen in the emergency room for an episode of tachycardia that began 30 minutes ago. He had a myocardial infarction three years ago. Since then, he has had recurrent bouts of tachycardia diagnosed as ventricular tachycardia Treatment with quinidine, procainamide, disopyramide, and several beta-adrenergic blocking drugs was ...
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A 65-year-old man is seen in the emergency room for an episode of tachycardia that began 30 minutes ago. He had a myocardial infarction three years ago. Since then, he has had recurrent bouts of tachycardia diagnosed as ventricular tachycardia Treatment with quinidine, procainamide, disopyramide, and several beta-adrenergic blocking drugs was ...
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Estimation of QRS Complex Power Spectra for Design of a QRS Filter
IEEE Transactions on Biomedical Engineering, 1984We present power spectral analysis of ECG waveforms as well as isolated QRS complexes and episodes of noise and artifact. The power spectral analysis shows that the QRS complex could be separated from other interfering signals. A bandpass filter that maximizes the signal (QRS complex)-to-noise (T-waves, 60 Hz, EMG, etc.) ratio would be of use in many ...
Nitish V. Thakor +2 more
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The Imposter Dance of Alternating QRS Complexes
JAMA Internal Medicine, 2022This case report describes a patient in their late 50s with acute onset chest pain with diaphoresis.
An-Li, Yu +2 more
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Abnormalities of the QRS Complex
1990Abnormalities of the QRS axis and the QRS interval have been discussed in earlier chapters and will be noted in this chapter only as they relate to other problems. As a general rule, the QRS complex reflects primarily left ventricular activity and to a much lesser extent right ventricular activity, since the mass of the left ventricle is so much ...
E. Wayne GroganJr., John W. Beasley
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