How to calculate qtc manually5/23/2023 ![]() Implementation of a protocol aimed at preventing QT interval prolongation and the complications associated to is also necessary. The reduction of the incidence of QT interval prolongation at hospital level requires pharmacotherapeutic and electrocardiographic monitoring and an assessment of the risk factors presented by each patient. When a prolonged QT interval is detected, the patient must be evaluated and all the medicines in their drug regimen able to prolong the QT interval must be discontinued 6- 8. Several procedures have been developed to prevent QT interval prolongation, which are based on drug therapy, potentially correctable factors and structural diseases or hereditary genetic arrhythmias 6, 7. Moreover, many drugs are available which are able to prolong the QT interval and increase the risk of torsade de pointes (TdP) tachycardia, particularly if they are used in patients with additional risk factors 2, 4, 5. QT interval prolongation may result in a lengthening of the patients' hospital stay and in an increase in morbidity and mortality 1- 3.
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