Biomedical subjects
K M Unger
Publications and source records attributed to K M Unger.
An intravenous radionuclide method for repeated shunt determinations.
Using a subtraction technique, repeated shunt determinations were successfully performed on 25 patients with a high degree of correlation.
Systemic air embolism following induction of artificial pneumothorax under anaesthesia, with successful management.
Systemic air embolism occurred in a patient during general anaesthesia, with positive pressure ventilation, following induction of artificial pneumothorax to assist in the diagnosis of a mediastinal mass. A sudden change in vital signs together with neurological abnormalities suggested involvement of both coronary and cerebral arteries. A trace of blood was noticed in the syringe which the surgeon had used to create the artificial pneumothorax. The patient was treated with hyperbaric oxygen and recovered satisfactorily, despite a 10-h interval between the air embolus and the institution of definitive therapy.
Pulmonary malignant fibrous histiocytoma. Light and electron microscopic studies of one case.
A malignant fibrous histiocytoma (MFH) arising in the lungs of a 51-year-old man was studied by light and electron microscopy. Features observed were identical to those of MFHs which occur in the skin and subcutaneous tissue and less commonly in other deep locations. By light microscopy, a storiform pattern with admixture of fibroblasts and histiocytes, as well as xanthomatous and giant cells, was noted. Undifferentiated tumor cells along with fibroblasts and histiocytes in different degrees of differentiation were identified ultrastructurally. These findings lend support to the concept that MFH is a sarcoma of primitive mesenchymal cell origin. The addition of the lung as another primary site for the development of this tumor is consistent with the view that MFHs may potentially arise in any part of the body.
Sputum or spit?
Explore the source record for details and available documents.
Detection of left ventricular failure in patients with adult respiratory distress syndrome.
Fourteen patients with adult respiratory distress syndrome were admitted to the medical intensive care unit and received bedside heart catheterization with the use of a balloon-tipped, flow directed catheter. Four of the 14 (29 percent) were found to have left ventricular failure (LVF), defined as a pulmonary artery wedge pressure greater than 12 mm Hg. Analysis of the standard clinical and laboratory data demonstrated no criteria which could differentiate those patients with LVF from those without. Three of the four patients indentified as having LVF responded to therapy directed toward LVF with substantial clinical improvement.