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J S Bleck

Publications and source records attributed to J S Bleck.

41 records · Page 3Linked to original sources
PubMed1987

[Viral pneumonias: typical and atypical findings].

The clinical and radiological features of viral pneumonias are summarized and discussed. Although viral infections of the lung belong to atypical pneumonias they do not demonstrate always the radiographic pattern of an interstitial pneumonia. Characteristic radiographic findings are quite rare. In most cases the microbial etiology cannot be predicted from chest radiographs. The appearance varies depending on the virulence of the organism and the resistance of the host. In this regard knowledge of epidemiological data as well as patient condition and underlying disease is of utmost importance. Differentiation between community- and hospital-acquired infections may be very helpful.

Diagnosis, Differential↗
PubMedDate not supplied

The adverse effects of angiographic radiocontrast media.

Radiographic procedures which require the intravascular administration of water-soluble radiocontrast media are performed with increasing frequency. Each examination carries risks that are related either to the technique itself or to the opaque medium chosen. The pathogenesis of radiocontrast media-related adverse effects cannot be explained by a unique theory. The major factors implicated are direct chemotoxic effects and the physicochemical properties of contrast media, the latter being the basis for development of new contrast agents. With nonionic opaque media cardiovascular adverse effects, heat sensation and local pain are observed less frequently. However, it remains unclear whether the incidence of organ dysfunction or anaphylactic reactions with nonionic contrast media currently used can be reduced. This review compares ionic and nonionic contrast media, and current thoughts on the pathophysiology and treatment of adverse reactions are presented.

Angiography↗