Symmetrically dotted tympanic membranes

by Christopher Seifen, Kai Helling
Published 2024-01-01

Obstructive Sleep Apnea in Patients with Head and Neck Cancer—More than Just a Comorbidity?

by Christopher Seifen, Tilman Huppertz, Christoph Matthias, Haralampos Gouveris
Published 2021-10-01

Periodic limb movements in patients with suspected obstructive sleep apnea without comorbid conditions

by Christopher Seifen, Moritz Herrmann, Johannes Pordzik, Christoph Matthias, Haralampos Gouveris
Published 2024-04-01

Heart Rate Variability as a Surrogate Marker of Severe Chronic Coronary Syndrome in Patients with Obstructive Sleep Apnea

by Christopher Seifen, Maria Zisiopoulou, Katharina Ludwig, Johannes Pordzik, Muthuraman Muthuraman, Haralampos Gouveris
Published 2023-09-01

Insomnia in Patients Undergoing Hypoglossal Nerve Stimulation Therapy for Obstructive Sleep Apnea

by Johannes Pordzik, Katharina Ludwig, Christopher Seifen, Tilman Huppertz, Katharina Bahr-Hamm, Christoph Matthias, Haralampos Gouveris
Published 2023-01-01

Serum Ferritin Levels in Severe Obstructive Sleep Apnea

by Christopher Seifen, Johannes Pordzik, Tilman Huppertz, Berit Hackenberg, Cornelia Schupp, Christoph Matthias, Perikles Simon, Haralampos Gouveris
Published 2023-03-01

Obstructive Sleep Apnea Disrupts Glycemic Control in Obese Individuals

by Christopher Seifen, Johannes Pordzik, Katharina Ludwig, Katharina Bahr, Cornelia Schupp, Christoph Matthias, Perikles Simon, Haralampos Gouveris
Published 2022-11-01

Drug-Induced Sleep Endoscopy Findings and Hypoglossal Nerve Stimulation Therapy Outcomes

by Johannes Pordzik, Christopher Seifen, Katharina Ludwig, Berit Hackenberg, Tilman Huppertz, Katharina Bahr-Hamm, Christoph Matthias, Haralampos Gouveris
Published 2023-03-01

Accumulating Comorbidities May Promote Increasing Severity of Obstructive Sleep Apnea with Aging in Males but Not in Females

by Christopher Seifen, Johannes Pordzik, Katharina Bahr, Lisa Große-Brüggemann, Katharina Ludwig, Berit Hackenberg, Christoph Matthias, Perikles Simon, Haralampos Gouveris
Published 2022-12-01

Central Apneic Event Prevalence in REM and NREM Sleep in OSA Patients: A Retrospective, Exploratory Study

by Katharina Ludwig, Sebastian Malatantis-Ewert, Tilman Huppertz, Katharina Bahr-Hamm, Christopher Seifen, Johannes Pordzik, Christoph Matthias, Perikles Simon, Haralampos Gouveris
Published 2023-02-01

The Fibrin Cleavage Product Bβ15-42 Channels Endothelial and Tubular Regeneration in the Post-acute Course During Murine Renal Ischemia Reperfusion Injury

by Dania Fischer, Christopher Seifen, Patrick Baer, Michaela Jung, Christina Mertens, Bertram Scheller, Kai Zacharowski, Rainer Hofmann, Thorsten J. Maier, Thorsten J. Maier, Anja Urbschat, Anja Urbschat
Published 2018-04-01