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Acute drug intoxication is a medical emergency considering its potential interference with vital functions. All 157 cases with drug overdose admitted to the emergency department of the "Inselspital" in Berne over 183 days between July 1989 and June 1990 were analyzed retrospectively. In the vast majority of cases heroin overdose was involved. In mixed poisonings with heroin mostly flunitrazepam and alcohol contributed to the clinical picture, less commonly cocaine. There were very few intoxications with cocaine alone. A practical approach to the management of patients with certain or suspected drug intoxication presenting with coma and depressed respiration is proposed. In the therapy of acute intoxications with opiates and benzodiazepines there are specific antagonists available. In contrast, therapy of cocaine overdose remains symptomatic. The medical complications of acute heroin and cocaine intoxications are discussed separately.

Malignant pericardial effusion (MPE) resulting in cardiac tamponade is a rare complication in neoplastic disease. From January 1975 to December 1984 the authors observed 22 patients with cytologically verified malignant pericardial effusion. The most frequent primary tumors were non-small cell lung cancer (6), breast cancer (5), non-Hodgkin lymphoma (4) and mesothelioma (4). 50% of the patients presented with MPE as the initial manifestation of the tumor. In the other group of patients MPE appeared after an average of 11 months following the diagnosis of malignant disease. The most frequent symptoms and clinical findings were dyspnea (100%), jugular venous distention (91%), and tachycardia (82%). During the first 24 hours after pericardiocentesis a median volume of 675 ml of predominantly serosanguinous effusion was drained. Besides intrapericardial drug instillation, patients also received local radiotherapy and systemic chemotherapy. At the time when MPE was diagnosed 77% of the patients exhibited advanced malignant disease. Mean survival time was 140 days. Malignant pericardial effusion is therefore regarded as an unfavorable prognostic factor.

In a clinical study the tolerance and efficacy of a gamma-globulin, treated at pH 4, has been studied. This preparation manufactured by the "Zentrallaboratorium des Blutspendedienstes SRK" can be given intravenously without any risk of untoward reactions. It has been applied in high dosages up to 99 g per week. In 15 cases with primary humoral immunodeficiency, the frequency and the severity of acute bacterial infections were markedly reduced or completely absent. In 16 patients without antibody deficiency but suffering from severe septic-toxic infections, results with Immunglobulin SRK were encouraging and warrant further controlled studies.