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QRS Complex Tachycardia (qr + complex_tachycardia)

Distribution by Scientific Domains
Medical Sciences100%

Kinds of QRS Complex Tachycardia

  • narrow QR complex tachycardia
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    Selected Abstracts

    A Long-RP Narrow QRS Complex Tachycardia With Alternating Cycle Length: What is the Mechanism?

    JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 5 2010
    MIGUEL A. ARIAS M.D., Ph.D.
    No abstract is available for this article. [source]

    Narrow QRS Complex Tachycardia Following Tricuspid Valve Replacement

    JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 8 2004
    VOLKHARD GOEBER M.D.
    [source]

    A Regular Narrow QRS Complex Tachycardia with Atrioventricular Dissociation

    PACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 7 2001
    JEN-YUAN KUO
    No abstract is available for this article. [source]

    Alternating Wide and Narrow QRS Complex Tachycardias:

    JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 6 2004
    What is the Mechanism?
    No abstract is available for this article. [source]

    A Narrow and Two Wide QRS Complex Tachycardias: What are the Mechanisms?

    PACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 5 2002
    JOHN P. MARENCO
    First page of article [source]

    Adenosine-Induced Ventricular Arrhythmias in Patients with Supraventricular Tachycardias

    ANNALS OF NONINVASIVE ELECTROCARDIOLOGY, Issue 4 2008
    Cagatay Ertan M.D.
    Background: Adenosine is widely used for the diagnosis and the termination of supraventricular arrhythmias. There are many case reports and few series about the proarrhythmic potential of adenosine. We sought to evaluate the proarrhythmic potential of adenosine used to terminate the supraventricular arrhythmias. Methods: The records of all patients that received adenosine for the termination of supraventricular tachycardia were reviewed retrospectively and those with a continuous electrocardiographic (ECG) recording during adenosine administration were included to the study. Results: Our search identified 52 supraventricular episodes of 46 patients with a continuous ECG recording during adenosine administration. Following adenosine administration, premature ventricular contraction (PVC) or ventricular tachycardia (VT) developed in 22 (47.8%) patients and in 26 (50%) tachycardia episodes. No patient had a sustained VT. Nonsustained VT developed in eight (17.4%) patients. All VT episodes were polymorphic, short, and self-terminating. When the basal and demographic properties of patients with PVC or VT and those without PVT or VT were compared, there was no significant difference. Conclusions: Adenosine is a quite safe and effective drug for the termination of narrow QRS complex tachycardia but it often induces nonsustained VT or PVC that are clinically insignificant in the absence of other accompanying heart disease. [source]

    Clinical Utility of aVR,The Neglected Electrocardiographic Lead

    ANNALS OF NONINVASIVE ELECTROCARDIOLOGY, Issue 2 2010
    Dmitriy Kireyev M.D.
    Background: Several studies suggest that electrocardiographers tend to neglect lead aVR during the reading of electrocardiograms (ECGs). Our objective was to provide a systematic review of the most important diagnostic and prognostic uses of lead aVR. Methods: We performed a thorough review of the literature about the lead aVR using PubMed, MEDLINE and the archives of the University at Buffalo libraries. Results: We found that lead aVR may provide important additional information in the diagnosis of coronary artery disease. It may provide a clue to the location of a lesion as well as the possibility of three vessel disease during an acute coronary syndrome. Lead aVR was found useful in the locus of arrhythmias and in differentiation of narrow and wide QRS complex tachycardias. It provides useful prognostic information for patients with the Brugada syndrome and tricyclic antidepressant toxicity. Lead aVR provides alternative criteria for the electrocardiographic diagnosis of left ventricular hypertrophy and left anterior fascicular block. Conclusion: Lead aVR provides very important additional diagnostic and prognostic information in multiple cardiac conditions and can be used either alone or in conjunction with other electrocardiographic leads. Ann Noninvasive Electrocardiol 2010;15(2):175,180 [source]