Tisdale JE, Jaynes HA, Kingery JR, et al. Development and validation of a risk score to predict QT interval prolongation in hospitalized patients. Circ Cardiovasc Qual Outcomes. 2013;6(4):479-87.

Tisdale JE, Jaynes HA, Kingery JR, Overholser BR, Mourad NA, Trujillo TN, Kovacs RJ. Effectiveness of a clinical decision support system for reducing the risk of QT interval prolongation in hospitalized patients. Circ Cardiovasc Qual Outcomes 2014;7:381-390.

Tisdale JE. Drug-induced QT interval prolongation and torsades de pointes: Role of the pharmacist in risk assessment, prevention and management. Can Pharm J (Ott). 2016;149(3):139-52.

Dr. James E. Tisdale

Tisdale Risk Score for QT Prolongation

loop

potassium

sepsis

drugs

Predicts risk of QT prolongation greater than 500 msec in hospitalized patients.

Tisdale Risk Score for QT

Graham Walker, MD, is an emergency physician practicing in San Francisco, California. Dr. Walker attended medical school at the Stanford University School of Medicine and then trained in emergency medicine at St. Luke’s-Roosevelt Hospital Center in New York City, where he was Chief Resident. He returned to the west coast as a Medical Simulation fellow and attending in Stanford’s emergency department. More relevant, of course, is that Dr. Walker is the creator and developer of MDCalc and remains active in content and calculator development, along with our many other endeavors as President of MD Aware, LLC (MDCalc’s parent company).

Graham Walker, MD

The Tisdale Risk Score for QT Prolongation predicts risk of QT prolongation >500 msec in hospitalized patients.

Corrected QT (QTc)

MuLBSTA Score

Brescia-COVID Severity Scale

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