Long QT after Cerebral Trauma

Report:

Sinus tachycardia 103/min

Small frontal plane voltage

Diffuse T wave inversion

Prolonged QT interval

Comment:

Some of the repolarisation changes can be due to U waves merged with T waves; while it cannot be excluded, it does not matter. The potassium was 3.5 mEq/L, not a level to produce large U waves. Even so, cerebral events can cause them too.

The next day (Fig 54a) the QT is still long and the T wave can easily

be separated from the U wave in V2-V3.

These tracings can only be interpreted as due to cerebral trauma with the knowledge of the patient’s history.

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