No registrations found.
ID
Source
Health condition
Patients visiting outpatient clinic. Orthostatic hypotension.
Sponsors and support
Intervention
Outcome measures
Primary outcome
An absolute difference in systolic and diastolic blood pressure, in standing versus sitting postural change.
Secondary outcome
Orthostatic hypotension, orthostatic symptoms, cardiac output.
Background summary
Orthostatic hypotension is frequently seen in elderly people and defined by a drop in blood pressure after standing up. However, physicians sometimes decide to measure the blood pressure from supine to sitting because of mobility problems. Furthermore, automated sphygmomanometers are commonly used in daily practice, although interval blood pressure measurements may be less accurate to diagnose orthostatic hypotension. We will investigate if postural change from supine to standing versus supine to sitting or continuous versus interval blood pressure measurements,measurements changes the prevalence of orthostatic hypotension, blood pressure and cardiac output. Main outcomes are an absolute difference in systolic and diastolic blood pressure (in standing versus sitting postural change), prevalence of orthostatic hypotension, orthostatic complaints, and cardiac output.
Study objective
The aim of this observational study is to investigate a possible difference in systolic and diastolic blood pressure, cardiac output, and prevalence of orthostatic hypotension (OH) after changing positions from supine to standing versus supine to sitting. Secondary, we aim to investigate a possible difference in prevalence of OH between continuous versus interval blood pressure measurement.
Study design
After scheduled appointment: BP measurements.
Intervention
Blood pressure measurements (BP) on both arms of the patient with two devices: continuous blood pressure measurements by the finometer, interval blood pressure measurements by an automated sphygmomanometer.
Inclusion criteria
Patients age over >65 years old with a scheduled appointment at the outpatient clinic of internal medicine and a medical history of vascular disease, diabetes or hypertension.
Exclusion criteria
- When blood pressure measurements are contra-indicated because of medical reasons.
- Patients who are unable to stand without assistance.
- Patients with known peripheral vessel disease in one or both arms.
- Patients who need a large or small upper arm measurement bandage.
- Patients who are incapable of giving consent.
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| NTR-new | NL5400 |
| NTR-old | NTR5525 |
| Other | METC : 15.06.95 |