ANESTHESIA AND RESUSCITATION FOR PATIENTS WITH PROLONGATION OF QT INTERVAL

Phạm Quang Minh1,
1 Hanoi Medical University

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Abstract

Prolongation of QT interval is defined as: QTc > 480ms for women and > 470ms for men, where QTc is the corrected QT that is measured on the electrocardiogram. Long QT interval is divided into 2 groups: congenital long QT syndrome and acquired prolongation of QT interval. Both types can lead to the dangerous arrhythmia - torsades de pointes whenever favorable conditions. If a patient with this arrhythmia requires anesthesia for sugery, the risk of torsade de pointes is very high. There are currently no specific recommendations for general anesthesia for kind of patients. On the basis of the pathophysiology of the syndrome, the mechanism of action of drugs used in anesthesia, the impact of anesthesia methods on myocardial conduction, and also reviewing the literature, we would like to analyze and give some recommendations on the use of drugs, specifically notes in the peri-operation to ensure optimal safety for these kind of patients.

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References

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