Idiopathic short-coupled ventricular tachyarrhythmias: Systematic review and validation of electrocardiographic indices.
| Autor: | Almehairi M; Cardiac Centre, Institute of Cardiac Sciences, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates., Alshiekh-Ali AA; Cardiac Centre, Institute of Cardiac Sciences, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates., Alfagih A; Prince Sultan Cardiac Centre, Military hospital, Riyadh, Saudi Arabia. |
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| Jazyk: | angličtina |
| Zdroj: | The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology [Egypt Heart J] 2018 Dec; Vol. 70 (4), pp. 301-306. Date of Electronic Publication: 2018 Jun 22. |
| DOI: | 10.1016/j.ehj.2018.06.003 |
| Abstrakt: | Introduction: Idiopathic short-coupled ventricular tachyarrhythmias make up a considerable proportion of ventricular tachyarrhythmias in structurally normal hearts and are the cause of 5-10% of unexpected sudden cardiac deaths. There is disparity in the literature regarding their description and a lack of formal diagnostic criteria to define them. Objective: To validate ECG indices for the diagnosis of these ventricular tachyarrythmias and to subsequently unify their differing descriptions in the literature under a new terminology: Idiopathic Short-Coupled Ventricular Tachyarrhythmias . Methods: We conducted a systematic review of all published studies describing short-coupled torsades de pointes, idiopathic ventricular fibrillation and polymorphic ventricular tachycardia. Published tracings were analysed using a standard set of criteria to define the different ECG intervals. Previously proposed diagnostic indices were validated using a control group of previously published long-coupled torsades de pointes cases. Results: Validation of the ECG indices revealed that a coupling interval < 400 ms was the most reliable measurement (sensitivity 100%, specificity 97%), followed by a coupling interval/QT < 1 (sensitivity 96%, specificity 100%). Conclusion: Idiopathic short-coupled ventricular tachyarrhythmias encompass all previous descriptions of this tachyarrhythmia including idiopathic ventricular fibrillation, short-coupled torsades de pointes, Purkinje-related torsades de pointes and idiopathic polymorphic ventricular tachycardia. This arrhythmia can be diagnosed by newly proposed criteria with high sensitivity and specificity. |
| Databáze: | MEDLINE |
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