Hans-Werner Duchna

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Studies from the USA have reported that sleep apnoea is common in congestive heart failure (CHF), with Cheyne-Stokes respiration (CSR) being the most frequent type of sleep-disordered breathing (SDB) in these patients. Within the present study, the authors sought to assess the prevalence and type of SDB among CHF patients in Germany. A total of 203 CHF(More)
The obstructive sleep apnea syndrome (OSAS) is associated with cardiovascular disease and systemic hypertension. Because systemic arterial blood pressure is proportional to venodilation and venous return to the heart, we hypothesized that altered vascular responsiveness might exist in the veins of subjects with OSAS. We therefore investigated venodilator(More)
Hinter der Bezeichnung 1zentrale Schlafapnoe“ verbergen sich verschiedene Syndrome unter− schiedlicher Genese und damit auch unter− schiedlicher klinischer Wertigkeit und Therapie− bedürftigkeit. Diese CME−Fortbildung zur zentra− len Schlafapnoe basiert auf einem Übersichtsarti− kel der Arbeitsgruppe Pathophysiologie Schlaf/ Atmung der Deutschen(More)
In 2005 the American Academy of Sleep Medicine (AASM) published a revised form of the International Classification of Sleep Disorders (ICSD-2). Goals of the ICSD-2 are: A) To describe all currently recognized sleep and arousal disorders, and to base the descriptions on scientific and clinical evidence. B) To present the sleep and arousal disorders in an(More)
BACKGROUND Respiratory disability induced by dust exposure in coal workers is assessed by pulmonary function tests and radiological evidence of pneumoconiosis. High-resolution computed tomography (HR-CT) improves the visibility of tissue changes, but the value of the findings for the clinical evaluation is controversial. OBJECTIVES It was the aim of this(More)
BACKGROUND Reports regarding long-term follow-up including quality-of-life assessment, pulmonary function, and donor-site morbidity after operative treatment for sternal osteomyelitis are rare. METHODS Data for 69 consecutive patients were acquired from patients' charts and contact with patients and general practitioners, with special reference to(More)
Approximately 25 % of all patients suffering from obstructive sleep apnea syndrome (OSAS) discontinue CPAP-therapy in long-term follow-up. This study was conducted to investigate if there are any predictors signaling low compliance prior to initiation of CPAP-therapy. We used an open label longitudinal cohort study at an University hospital in-patient Sleep(More)
INTRODUCTION Allergies caused by metallic implants are often thought to be a reason for postoperative complications like bone necrosis or loosening of the prosthesis. PATIENTS AND METHODS In a prospective study, we investigated allergic sensitivity against components of stainless steel implants, including titanium, in 112 patients shortly before surgical(More)
INTRODUCTION Patients with COPD present with impairments of their cognitive performance. The present study compares intelligence and memory performance as well as different aspects of attention in COPD patients and healthy controls. Additionally, potential factors influencing daytime performance are analyzed. PATIENTS AND METHODS Neuropsychological(More)