Results: From a total of 1452 consecutive HUTs, we identified 730 with pre-test measures of sitting and standing BP. Both tests happened within 5 min of each other and patients underwent no intervention between tests. The results of sit-stand testing were compared with HUT testing as a reference standard. Standing BP was measured within 30 s of assuming the upright posture. Sitting blood pressure (BP) was measured following 3 min rest. A 3 min 70° HUT was performed following 5 min supine. HUT testing was performed using an automated tilt table with Finometer monitoring. Methods: This was a retrospective study performed using a database maintained by a busy syncope unit. Our objective was to assess the accuracy of sit-stand testing with semi-automatic sphygmomanometry for the diagnosis of OH.ĭesign: Retrospective test of diagnostic accuracy. The current reference standard for its diagnosis is head-up tilt (HUT) testing with continuous beat-to-beat plethysmography. It is treatable and deserving of accurate diagnosis. Introduction: Orthostatic hypotension (OH) is associated with troublesome symptoms and increased mortality.
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