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Figure 34-27
Trifascicular block. The PR interval is 232 msec, and
a right bundle branch block is identified. The axis of the QRS vector is -85 degrees,
indicating a left anterior hemiblock. (Adapted from Thys DM, Kaplan JA:
The ECG in Anesthesia and Critical Care. New York, Churchill Livingstone, 1987.)
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