Nosocomial outbreak of legionellosis in a rehabilitation center. Demonstration of potable water as a source.

Ten patients from a rehabilitation center were admitted to hospital with serious respiratory infections within ten weeks. An outbreak of Legionnaire's disease was suspected based on the epidemic and atypical manifestation of pneumonia and could be proven microbiologically. Pulmonary and extrapulmonary complications included respiratory failure, lung abscess, transitory renal impairment in five patients and acute renal failure requiring dialysis in one, tetraparesis caused by peripheral neuropathy and acute psychosis. Three patients died despite immediate institution of therapy with erythromycin. Legionella pneumophila serogroup 1 subtype Pontiac was isolated from a bronchial lavage sample of one patient and from the water supply of the rehabilitation center. Monoclonal antibody subtyping and restriction endonuclease analysis were performed on both environmental and patient isolates. Potable water was identified as the source of the outbreak based on identical patterns on restriction endonuclease analysis. Despite thermic and chemical disinfection with chlorination (up to 15 ppm) in the rehabilitation clinic, an eleventh case of Legionnaire's disease was detected 11 months later.

[The therapy of the heparin-induced thrombosis-thrombocytopenia syndrome with immunoglobulins]. / Therapie des Heparin-induzierten Thrombose-Thrombozytopenie-Syndroms mit Immunglobulinen.

A 51-year-old obese woman who had just undergone a second osteotomy for arthrosis of the hip joint was given unfractionated heparin, 7,500 IU subcutaneously three times daily, as thrombosis prophylaxis. Signs of fulminant pulmonary embolism occurred on the 16th postoperative day with a platelet count of 33,000/microliters. Suspected heparin-induced thrombocytopenia and thrombosis (HITT) was confirmed by platelet tests. When heparin had been discontinued immunoglobulin G was administered, seven times 5 g intravenously, in view of the immunological genesis of HITT. In addition thrombolysis treatment with streptokinase combined with phenprocoumon was undertaken, until satisfactory anticoagulation was achieved after 4 days. Platelet count rose to 136,000/microliters within 20 hours of the first immunoglobulin dose. Complete clinical normality was restored, scintigraphy showed no perfusion deficit in the lungs.

[Fulminant venous and arterial thromboses under heparin therapy]. / Fulminante venöse und arterielle Thrombosen unter Heparintherapie.

A deep-vein thrombosis developed in a 71-year-old patient on the eleventh day of heparin treatment (25,000 U intravenously over 24 hours) given because of a nontransmural anterior-wall infarct. Subsequently there occurred a unilateral and then bilateral thrombotic occlusion of the femoral arteries and thrombosis of the infrarenal artery with occlusion of the right renal artery which necessitated operative thrombectomy. Platelet count, initially 370,000/microliters, fell to 34,000/microliters. No source of emboli was found either echocardiographically or by thoracic and abdominal computed tomography. After heparin administration had been discontinued on the 15th day, platelet count quickly returned to normal. Rapidly progressing demarcation necessitated amputation of both legs. The patient died on the 23rd hospital day. The reported findings indicate a heparin-induced thrombosis-thrombocytopenia syndrome.

[Value of small bowel double contrast enema in clinical interventions]. / Die Wertigkeit des Dünndarmdoppelkontrasteinlaufes im klinischen Einsatz.

The double contrast enema is the most effective morphological screening method for the evaluation of the whole small bowel. Its sensitivity is 85%, its specifity 96.7%. In specific clinical problems the number of pathological roentgen findings rises: from 34.4% when all indications are taken into consideration to 58% in indications specific to the small intestine such as Morbus Crohn or the malabsorption syndrome. Search for tumours and the double contrast of the small bowel in unclear gastro-intestinal bleeding are unproductive. The weak point of this screening method is the lower part of the small intestine. Therefore, the selective peroral or retrograde analysis of the terminal ileum supplement the contrast method. A precondition for good results is an adequate technical standard. Besides the clinical results some technical results are therefore discussed such as contrast medium quantities, examination and X-ray time, radiation exposure and influences on the image quality.