[Effect of time elapsed from spontaneous syncope on the diagnostic performance of the head-up tilt table test].
نویسندگان
چکیده
OBJECTIVES The propensity for spontaneous and tilt-induced neurocardiogenic syncope may exhibit temporal variations. Therefore the diagnostic performance of the head-up tilt test could be improved if it were performed soon after the occurrence of spontaneous syncope. The objective of this study was to assess whether the time interval between the last syncopal episode and tilt table testing influenced the outcome of the test. PATIENTS AND METHOD Three hundred and fifteen patients undergoing diagnostic tilt table testing potentiated with nitroglycerin for suspected neurocardiogenic syncope were included in the study. The time between the last spontaneous syncope and the tilt table test was recorded and its relationship with the results of the test was analyzed. RESULTS The tilt table test was positive in 211 patients (67.0%). The time from syncope to test was similar for patients with positive and negative tilt table test results: 28 (1-500) vs 32 (2-700) days (NS). No significant relation was observed between the results of the test and the occurrence of spontaneous syncope during the week, the month or the three months previous to the procedure. However, in men and in patients older than 50 years a higher rate of positive tests was observed if the tilt test was performed within the first month after the last spontaneous syncope. CONCLUSIONS The time from the last previous spontaneous syncope to the head-up tilt test does not have a significant impact on test outcome in the overall population with suspected neurocardiogenic syncope. However, the rate of positivity might decrease in men and patients older than 50 years if the test is performed later than one month after the spontaneous syncopal episode.
منابع مشابه
DI AGNOSTIC VAL UE OF SUBL INGUAL NITROGLYCERIN TILT TEST: COMPARISON WITH THE STANDARD ISOPROTERENOL TILT TEST
Sublingual nitroglycerin (TNG) has been introduced as a promising provocative agent for tilt table testing, but it has not been compared directly with the standard isoproterenol (ISO) infusion test previously. We tried to assess the diagnostic value and safety of TNG tilt testing as compared with ISO infusion in patients with unexplained syncope. TNG and ISO tilt tests were performed in tw...
متن کاملThe Newcastle protocols for head-up tilt table testing in the diagnosis of vasovagal syncope, carotid sinus hypersensitivity, and related disorders.
Head-up tilt table testing had been used as an investigative tool in the pathophysiology of orthostatic stress for more than 50 years, before the initial demonstration of its utility in the diagnosis of unexplained syncope. The Westminster group’s landmark study found that 67% of patients with otherwise unexplained syncope demonstrated a vasovagal reaction during head-up tilt, compared to only ...
متن کاملUtility of a single-stage isoproterenol tilt table test in adults: a randomized comparison with passive head-up tilt.
OBJECTIVES This study was conducted to develop a time-efficient tilt table test. BACKGROUND Current protocols of tilt table testing are quite time-consuming. This study was designed to assess the diagnostic value, tolerance and procedural time of a single-stage isoproterenol tilt table protocol. METHODS A single-stage isoproterenol tilt table test was compared with the passive tilt table te...
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OBJECTIVE To evaluate the effect of sublingual administration of ISDN on the results of the head-up tilt table test (HUTT) in children and adolescents with vasovagal syncope. MATERIALS AND METHODS The study group consisted of 30 children, each with at least one incidence of vasovagal syncope, and the control group had 15 healthy children. The patients were tilted upright at an angle of 60° fo...
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While the investigation of the physiological and vasovagal syncope. The pathophysiology of the vasopathophysiological effects of orthostatic stress vagal response is thus central to an understanding induced by head-up tilt table testing in humans of the role of tilting in its diagnosis. began more than 50 years ago,1 it was not until 1986 Although central, higher cortical provocation of that th...
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ورودعنوان ژورنال:
- Revista espanola de cardiologia
دوره 56 8 شماره
صفحات -
تاریخ انتشار 2003