Effect of passive tilting duration on the outcome of head-up tilt testing.


OBJECTIVE We sought to compare the results of head-up tilt test (HUT) using the most common protocols, namely the Italian and Westminster prolonged by nitroglycerin (modified Westminster) protocols. We also investigated the role of passive tilting duration on HUT outcome. METHODS AND RESULTS From 478 syncopal patients 306 (64%) individuals showed positive… (More)


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