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Biomedical subjects

J Buss

Publications and source records attributed to J Buss.

12 recordsLinked to original sources
PubMed1992

[Patent foramen ovale and platypnea after pneumonectomy].

Six months after a pneumonectomy for myeloma, which had preoperatively been indistinguishable from bronchial carcinoma, a 50-year-old man presented with shortage of breath, cyanosis and episodes of syncope on standing or walking, symptoms which improved on lying down (platypnea). On one occasion these symptoms necessitated controlled artificial ventilation, but even at an inspiratory oxygen saturation of 100%, blood gases only partially improved (pCO2 27 mm Hg, pO2 67 mm Hg, O2 saturation 93%). Right heart catheterization in recumbency revealed a right to left shunt at atrial level of 37% of systemic flow. Contrast medium injection into the inferior vena cava near the heart demonstrated cardiac displacement and rotation. Part of the inferior vena cava flow passed into the left atrium via a patent foramen ovale: it is likely that this shunt increased in the upright position. After surgical closure of the patent foramen ovale and partial relocation of the heart (with a vicryl net) the patient has now remained free of symptoms for 5 years.

Dyspnea↗
PubMed1990

[Conjunctival oxygen partial pressure, hemorheology and circulatory parameters in acute cerebral infarct before and following infusion of 6 percent low molecular hydroxyethyl starch].

A prospective clinical trial was performed on the effects of a three hour infusion of 500 ml 6% low-molecular-weight hydroxyethyl starch in patients with acute ischemic stroke. Hemorheology and conjunctival oxygen tension were found to be disturbed prior to treatment. After the infusion there was a marked improvement of the pertinent parameters, indicative of an increase in cerebral microcirculation and oxygen supply. Even 3 h later persistent significant effects were observed. The infusion was well tolerated. Blood pressure and cardiac index remained unchanged.

Blood Viscosity↗
PubMed1978

Sleep patterns in cat induced by gammahydroxybutyric acid.

Intravenous injections of gammahydroxybutyric acid (GHBA) (150-200 mg/kg) induce desynchronized sleep (DS) in the cat. This was shown by recording the EEG, eye-movements, the neck EMG, heart-rate and arterial pressure. The decreases in arterial pressure were not different from those recorded during naturally occurring DS. GHBA, given at doses above 200 mg/kg induced anaesthesia, during which arterial pressure was elevated. At the end of GHBA-induced sleep or anaesthesia there was a stage during which the animals were ataxic. The EEG showed a hypersynchronous spike pattern and arterial pressure was markedly elevated.

Animals↗
PubMed1976

Sarcoidosis in Europe: a cooperative study.

The data on the epidemiologic situation of sarcoidosis from 24 countries of Europe have been reviewed. The new facts seem to demonstrate that the differences between the frequency of this disease in the north and south are not real. The actual situation is dependent on the general knowledge of this disease and on the extent and intensity of the active detection of its asymptomatic stage. A new prospective cooperative study of the yearly incidence of all forms of sarcoidosis in the total population of at least some European countries would be desirable.

Adult↗