Head-up tilt testing for detecting orthostatic hypotension: how long do we need to wait?
| Autor: | Tanya Gurevich, Nir Giladi, Chava Peretz, Hanadi Machmid, Adi Ezra, Dina Klepikov |
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| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Time Factors Epidemiology Posture Blood Pressure Tilt table test Orthostatic vital signs Hypotension Orthostatic Young Adult Older patients Tilt-Table Test medicine Humans Survival analysis Aged medicine.diagnostic_test business.industry Minimum time Head up tilt Middle Aged Blood pressure Anesthesia Female Neurology (clinical) Older people business |
| Zdroj: | Neuroepidemiology. 43(3-4) |
| ISSN: | 1423-0208 |
| Popis: | Background: Orthostatic hypotension (OH) is a common underdiagnosed condition characterized by a fall in systolic or diastolic blood pressure (BP). There is some uncertainty about the minimum duration needed to detect OH beyond 3 min (delayed OH). We aimed to define a minimum time range for measurement of delayed OH in subjects referred to as tilt testing. Methods: A repeated measurements study Tel-Aviv Medical Center, on 692 subjects who underwent prolonged (40 min, vertical position) drug-free tilt testing. Survival curves were used to study time to an OH event; logistic regression to study factors associated with delayed OH and mixed models to study the pattern of repeated BP measures. Results: In our sample, 17% had OH within 3 min, 35% within 30 min, and 40% within 40 min. Among the 270 OH patients, 43 and 91% were identified within 3 and 30 min, respectively. Delayed OH was associated with female gender (OR = 1.95, 1.16-3.27) and age Conclusion: Tilt testing for 30 min identifies most cases of delayed OH in older patients, while those younger than 65 years need 10 min longer. |
| Databáze: | OpenAIRE |
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