Wr. Lewis et Md. Carlson, SYSTOLIC BLOOD-PRESSURE AT REST, NOT THE DEGREE OF BETA-BLOCKADE, PREDICTS THE RESULT OF FOLLOW-UP TILT-TABLE TESTING FOR VASOVAGAL SYNCOPE, The American journal of cardiology, 80(3), 1997, pp. 351
Tilt-table testing after therapy with beta blockade is frequently used
to predict clinical success. This study found that heart rate and blo
od pressure reductions after beta-blocker therapy did not predict the
results of follow-up tilt-table test, but low blood pressure at rest b
efore the initial test predicts failure of this therapy.