Emotional stress as a cause of syncope and torsade de pointes in patients with long QT syndrome
| Autor: | Irena Tomašević Vukmirović, Filip Vukmirovic, Mihailo Vukmirović, Lazar Angelkov |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
medicine.medical_specialty medicine.medical_treatment Long QT syndrome electrophysiologic techniques cardiac Context (language use) Cardioversion Ventricular tachycardia QT interval Sudden death Syncope Sudden cardiac death Electrocardiography torasades de pointes Torsades de Pointes Internal medicine medicine Humans Pharmacology (medical) cardiovascular diseases lcsh:R5-920 medicine.diagnostic_test business.industry medicine.disease drug therapy Long QT Syndrome Anesthesia Cardiology cardiovascular system Female business lcsh:Medicine (General) Stress Psychological |
| Zdroj: | Vojnosanitetski Pregled, Vol 72, Iss 2, Pp 192-195 (2015) |
| ISSN: | 0042-8450 |
| Popis: | Introduction. Long QT syndrome (LQTS) is a disorder of myocardial repolarization characterized by the prolongation of QT interval and high risk propensity of torsade de pointes (TdP) that can lead to syncope, cardiac arrest and sudden death. Episodes may be provoked by various stimuli depending on the type of the condition. Case report. A 25- year-old famele patient was hospitalized due to syncope that occurred immediately after her solo concert, first time in her life. The patient studied solo singing and after intensive preparations the first solo concert was organized. Electrocardiography (ECG) on admission registered frequent ventricular premature beats (VES), followed by polymorphic ventricular tachycardia - TdP that degenerated into ventricular fibrilation (VF). After immediate cardioversion magnesium and beta-blockers were administered. TdP was registered again several times preceded by VES. The corrected QT interval (QTc) was 516 msec. For secondary prevention of sudden cardiac death, a cardioverter defibrillator was implanted, and beta-blockers continued. After a 1-year follow-up there were no recurrent episodes of TdP, and measured QTc was reduced to 484 msec. Conclusion. Patients with syncope following intensive emotional stress should be evaluated for malignant arrhythmias in the context of LQTS. |
| Databáze: | OpenAIRE |
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