Comment to the article: “Consensus statement on the definition of orthostatic hypertension endorsed by the American Autonomic Society and the Japanese Society of Hypertension” by Jordan and colleagues

We welcome the initiative by Jordan et al. [1] on distinguishing and proposing uniform definitions for both an exaggerated orthostatic pressor response and orthostatic hypertension.We share the authors' view that harmonization of guidelines should be encouraged to ensure comparability of results in this research field.We have, though, some comments regarding the timeframe proposed for the assessments of the upright systolic blood pressure (SBP) measurements.The authors mentioned that SBP while standing should be measured after 1, 3, and 5 min to confirm the persistent character of the blood pressure change.However, they do not provide references to support the time intervals that they propose.While time intervals that are too short may likely not provide reliable results, time intervals that are too long may increase the total time burden of patients or study participants, as well as of study personnel.Although at first sight small differences may seem negligible, when performed daily on a routine basis, this may also increase the financial burden in clinical practice