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Biomedical subjects

F Nager

Publications and source records attributed to F Nager.

At least 19 recordsLinked to original sources
PubMed1992

[Medicine between technique and ethics].

In modern medicine technical and ethical questions develop continuously into a tension-loaded relationship. The actual controversy between technical and ethical imperative concerns primarily the fundamental dichotomy and dialectics of modern medical technology. In a second part the ethical challenge for physicians and nurses operating in our increasingly perfect hospitals is analysed. An outlook for future conditions for more harmony between medical technology and ethics is finally presented. A new medical spirit is needed to animate medical technology and to expand it to real art of healing.

Ethics, Medical↗
PubMed1992

[Therapy of chronic heart failure].

Symptoms of chronic cardiac failure depend on four determinants: The initial event concerns a decrease in contractility. The resulting complex neurohumoral regulatory mechanisms are essentially sympathicomimetic and stimulate the renin-angiotensin system. Accordingly, pre- and afterload will increase and symptoms may become aggravated by dys- or arrhythmias. Symptomatic pharmacotherapy of cardiac failure is directed to these four determinants. The actual rationale for its use is presented, putting emphasis on the renewed controversy on digitalis and on the importance of vasodilators, in particular ACE inhibitors. The relevance of diagnostic evaluation before and during treatment is indicated. The adaptation of treatment according to different causative disorders leading to cardiac failure is outlined. Finally, open questions and unsolved problems are brought up.

Angiotensin-Converting Enzyme Inhibitors↗
PubMed1991

[Goethe's struggle with depression].

Goethe was subjected during his whole life to extraordinary psychic threats and polar tensions often to the limits of destruction. For long periods of life he travelled in the mist of depression. By steady patience, constant endurance, disciplined diligence, self-control and self-denial as well as restless activity inward and outward he resisted serious depressive threats and did not get paralyzed. He rather faced his spiritual sorrow creatively and forced it into curative poetry. While being completely uncommon, his wise but old-fashioned recipes on ways to master one's depression are a psychotherapeutic bequest and remain valuable up to our days as complement to our modern concepts.

Depression↗
PubMed1991

[The clinical diagnosis of lung embolism].

The clinical classification, pathophysiology and often difficult diagnosis of acute pulmonary embolism are reviewed. The diagnostic power of subjective and objective clinical symptoms and the diagnostic procedures (electrocardiogram, chest X-ray, echocardiography, pulmonary arteriography, pulmonary scintigraphy, determination of arterial blood gases) are evaluated and an actual investigative plan outlined. Diagnostic problems and frequent pitfalls are discussed. The often non characteristic and masked course in acute and chronically recurrent pulmonary embolism is emphasized.

Diagnosis, Differential↗
PubMed1991

[Dysphagia: definition].

Dysphagia is a terminus which describes problems during the action of swallowing of fluids and/or food. The diagnosis is made by a detailed history according to a standard questionnaire, which then allows to distinguish between oropharyngeal and esophageal dysphagia.

Algorithms↗
PubMed1990

[Therapy of angina pectoris--state of the art].

A rational therapy of angina pectoris has to consider two recent pathophysiologic insights: 1. Not only in patients with instable but also with stable angina a dynamic, vasospastic component in addition to stenosis plays an important role. Stable angina is often a mixed form of disease. 2. In many patients stable angina is complicated by silent ischemia. Therapy of stable angina has 3 goals: 1. prevention or alleviation of angina; 2. reduction of silent ischemia episodes (number, extent); 3. cardioprotection i.e. prevention of instable angina, infarction and sudden death. The pharmacotherapeutic cornerstones are the nitrates, beta-blocking agents and calcium channel blockers. Their generally equivalent efficacy in short and longterm use is clinically and hemodynamically proven without doubt. Mode of action, pharmacokinetic aspects and recent as well as controversial questions regarding this group of drugs are reviewed. The pharmacotherapy of first choice should be determined for each patient individually and not according to schematic prescription. It should encompass pathogenesis of ischemia, specific indications for or adverse effects of the 3 drug classes, the question of induction of tolerance, possible cardioprotective benefit, side effects, compliance problems and finally cost of treatment. The rational aspects of combination therapy (nitrates and beta-blockers, beta-blockers and calcium antagonists) are explained and the therapeutic procedures for instable angina are outlined.

Adrenergic beta-Antagonists↗
PubMed1990

[Clinical aspects of staphylococcal endocarditis].

Patients with staphylococcus endocarditis hospitalized at the Cantonal Hospital Lucerne from 1971 to 1988 are reviewed. A total of 50 patients fulfilled the diagnostic criteria (in 60% of the cases the diagnosis was definite, in 26% probable, and in 14% possible). These 50 patients with staphylococcus infection account for 29% of all patients with infective endocarditis seen during this time interval. Staphylococcus endocarditis affected the mitral valve in 48%, the aortic valve in 36% and--unexpectedly often--the tricuspid valve in 30%. In 54% previously normal valves were infected. Diminished host defence (predominantly intravenous drug addiction and diabetes) was a predisposing feature in 52% of the patients. The average duration of symptoms before diagnosis was 11 days, and in patients with right heart endocarditis it was 21 days. In 20% the condition was not diagnosed before autopsy. The clinical picture was relatively nonspecific: 50% of patients had no diagnostic heart murmur and 10% had no fever. The dominant--often misleading--symptoms were due to embolic complications. Two thirds of the cases with right heart endocarditis had pulmonary emboli. In 38% of the patients endocarditis resulted in heart failure. Overall mortality was 51% and correlated with age and the presence of heart failure, uncontrolled infection or cerebral embolism. In contrast to the high mortality in patients with mitral valve infection (61%), only one of the 11 patients with isolated right heart endocarditis died.

Endocarditis, Bacterial↗
PubMed1979

[Atenolol in the treatment of angina pectoris].

18 patients with angina pectoris participated in a double blind trial with atenolol (100 mg and 200 mg once daily, or 100 mg twice daily) and propranolol (80 mg twice daily). The number of anginal attacks (NAP), the number of days free of pain (NAFT), consumption of sublingual nitroglycerin (NNT) and bicycle ergometry data (EFE) were recorded. Atenolol given in a dose of 100 g twice daily significantly reduced NAP and NNT as compared with the other dose schedules for atenolol and propranolol. There was, however, no difference between NAFT and EFE under any of the treatment schedules mentioned above. Only with 100 mg atenolol twice daily was it possible to reduce heart rate at rest and immediately after exercise testing, and also diastolic blood pressure (at rest, upright and after stress testing). In spite of the long plasma T 1/2 (= 24 hours) reported by others, atenolol given twice daily seems to be the most effective schedule. It is concluded that atenolol (100 mg twice daily) has a more potent anti-anginal effect than propranolol (80 mg twice daily). In addition, atenolol has the advantage of being cardioselective.

Aged↗
PubMed1978

[Atenelol and bendrofluazide in the treatment of medium and severe hypertension (preliminary report)].

In 15 patients with moderate to severe hypertension (WHO II--III) atenolol was evaluated against a thiazide diuretic (bendrofluazide) in a single blind crossover study. Systolic blood pressure values were lowered more efficiently by the diuretic, while diastolic pressure values were significantly better controlled by atenolol. Atenolol and bendrofluazide, by mere addition of the pressure effects of the single components, clearly afforded the best pressure control. Side effects of atenolol were frequent but mild, never causing major concern with the patients or a dropout from the study. Although the pressure response to atenolol was significantly better in the normal and high renin group of patients, there was no statistically significant correlation between the reduction in plasma renin and blood pressure induced by atenolol. In turn, the pressure response to the diuretic was significantly better in low renin than in normal and high renin patients.

Atenolol↗
PubMed1977

[The diagnosis of the sinus node syndrome].

The "specific" investigations for sinus node syndrome (SNS) in 22 patients are analyzed. SNS was defined as sinusbradycardia below 40/min and sinus-standstill over 2 sec. Atropin (1 mg i.v.), exercise test and carotid pressure were of little help in establishing the diagnosis, while Holter monitoring and sinus-node recovery time were significantly abnormal in all patients investigated.

Aged↗
PubMed1976

[Cardiac syncope].

Clinical cases are presented on the general theme of cardiovascular syncope. A case is cited to illustrate the clinical picture of idiopathic hypertrophic obstructive cardiomyopathy, a frequently disguised and misinterpreted cause of syncope. Chief attention is focused on the concept of fascicular heart block causing syncope. In the light of 3 patients, the various possibilities with respect to etiology, evolution, clinical picture and prognosis of fascicular heart block are outlined. In this context the diagnostic, prognostic and therapeutic significance of His bundle electrocardiography is discussed. Finally, 2 cases are cited to illustrate the sick sinus syndrome as a major cause of syncope. The diagnostic procedure in patients with suspected lazy sinus node is discussed and the results are presented of 16 personally observed cases with this disorder.

Adult↗