Digital Tracking of Physical Activity, Heart Rate, and Inhalation Behavior in Patients With Pulmonary Arterial Hypertension Treated With Inhaled Iloprost: Observational Study (VENTASTEP)

Barbara Stollfuss   ¹ , MD, PhD ;   Manuel Richter   ² , MD ;   Daniel Drömann   ³ , MD ;   Hans Klose   ⁴ , MD ;   Martin Schwaiblmair   ⁵ , MD ;   Ekkehard Gruenig   ⁶ , MD ;   Ralf Ewert   ⁷ , MD ;   Martin C Kirchner   ¹ , Dipl-Biol ;   Frank Kleinjung   ⁸ , PhD ;   Valeska Irrgang   ¹ , MD ;   Christian Mueller   ¹ , PhD

¹ Bayer Vital GmbH, Leverkusen, Germany

² Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research, Giessen, Germany

³ Department of Pneumology, Universitätsklinikum Schleswig-Holstein, Member of the German Center for Lung Research, Lübeck, Germany

⁴ Department of Pneumology, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany

⁵ Department of Pneumology, I. Medizinische Klinik, Universitätsklinikum Augsburg, Augsburg, Germany

⁶ Centre for Pulmonary Hypertension, Thoraxclinic Heidelberg GmbH at Heidelberg University Hospital and German Centre for Lung Research, Heidelberg, Germany

⁷ Department of Internal Medicine, Universitätsmedizin Greifswald, Greifswald, Germany

⁸ Bayer AG, Berlin, Germany