Gerhard Stark

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BACKGROUND Telemonitoring of patients with chronic heart failure (CHF) is an emerging concept to detect early warning signs of impending acute decompensation in order to prevent hospitalization. OBJECTIVE The goal of the MOBIle TELemonitoring in Heart Failure Patients Study (MOBITEL) was to evaluate the impact of home-based telemonitoring using Internet(More)
Propafenone is a class 1c antiarrhythmic agent with moderate beta-blocking activity as a result of a structural similarity to beta-adrenoceptor antagonists. In a randomized, double-blind crossover exercise study, eight healthy volunteers were examined before and 2 1/2 hours after oral administration of 300 mg (R,S)-, 150 mg (R)-, and 150 mg (S)-propafenone(More)
To report the initial experience with a new catheter system (The Outback catheter) designed to allow fluoroscopically controlled re-entry of the true arterial lumen after subintimal guidewire passage during recanalization procedures of arterial occlusions. The catheter was used in 10 patients with intermittent claudication caused by chronic segmental(More)
The so-called hypothenar hammer syndrome is a rare entity caused by lesions of the ulnar artery secondary to repetitive trauma to the hypothenar eminence, typically found in persons working with vibrating tools. Its clinical symptoms are pain, stiffness and whitening of the smitten fingers, sometimes in combination with Raynaud's syndrome. Angiographic(More)
The assessment of the effects on the conduction of the cardiac impulse and of refractoriness simultaneously from multiple cardiac structures is important to evaluate the mode of action of new compounds, as well as to investigate undesired cardiac side effects. The measurements of intracardiac electrical activities of special structures have required(More)
PURPOSE To present a rare case of abscess formation around a covered stent in the superficial femoral artery. METHODS AND RESULTS Two weeks after balloon dilation of a left superficial femoral artery (SFA) occlusion, during which a Hemobahn covered stent had been placed to treat dissection, a 77-year-old nondiabetic male developed intolerable pain and(More)
This study was performed to evaluate the direct effects of magnesium ions on cardiac conduction velocities and on refractoriness using a modified Langendorff perfusion system and a special ECG recording and stimulation technique. An increase of the MG2+ concentration to 2.3 mM had no detectable effects. Higher concentrations of up to 4.6 mM decreased the(More)
OBJECTIVE To evaluate nonsurgical alternatives in reopening chronically occluded aortic bifurcation. DESIGN Uncontrolled randomized study. SETTING University-affiliated referral center for vascular diseases. PATIENTS Twenty-five of 39 consecutive patients with chronic aortoiliac disease including a totally occluded aortic bifurcation were found to be(More)
Cystical adventitial degeneration of the popliteal artery is a disorder which is difficult to diagnose, due to the similarity of the symptoms of people presenting with peripheral arterial occlusive disease (PAOD) or popliteal entrapment syndrome. The only thing that differs from patients suffering from PAOD is the lack of typical risk factors for(More)