Indications, methodology, and classification of results of tilt-table testing

Tilt-table testing has become an important part of the evaluation of patien ts with unexplained syncope, although nor every patient with vasovagal sync ope requires it. Studies have attested to the effectiveness of the techniqu e for providing direct diagnostic evidence of a patient's susceptibility to vasovagal syncope. This article reviews the need for tilt-table testing an d the recommended methods for performing a test, In addition, a detailed cl assification of the hemodynamic patterns of collapse displayed over the cou rse of a tilt-table study is provided. These distinctive collapse patterns document the evolution of a syncopal event and are particularly important t o identify because they can influence the selection of therapy, (C) 1999 by Excerpta Medico, Inc.