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Biomedical subjects

H Halweg

Publications and source records attributed to H Halweg.

At least 19 recordsLinked to original sources
PubMed1991

[Symptoms and functional disorders of the respiratory system caused by exposure to tea dust].

A case report is presented of a female worker of a tee packing factory, with a 5 years history of tea dust exposition and symptoms of reversible airway obstruction and early allergic alveolitis. The results of spirometric and lung mechanics demonstrated reversible airway obstruction with co-existent restrictive changes, lowering of CO diffusing capacity (DLc0). Bronchial provocation tests with tea dust were carried out thrice and all were positive. The authors believe that the etiological factor of above mentioned changes were Aspergillus niger spores found in tea dust. Tea dust and the patient's sputum cultured for fungi revealed massive growth of A. niger. Serological tests revealed additionally, antibodies to A. niger and tea dust extracts. The authors discuss the possible mechanisms of airway disturbances in this patient.

Adult↗
PubMed1990

[Pulmonary aspergilloma caused by Aspergillus niger].

The authors present a case report of a 66 year old male that was admitted due to pulmonary lesions with cavitation localized in the upper left lobe. In the cavity an abnormal mass could be seen. In the differential diagnosis malignancy and tuberculosis were excluded. Fungi were cultured from the bronchial washings and sputum. Their morphological characteristics allowed them to be typed as Aspergillus niger. Slides from the thick, mucoid, black sputum demonstrated typical forms of the fungus. Polarized microscopy demonstrated calcium oxalate crystals. The final diagnosis was pulmonary aspergilloma caused by A.niger complicating a pulmonary abscess in the course of a pneumonia.

Aged↗
PubMed1989

[Further studies on the occurrence of mycoses in the bronchial stump and bronchial anastomosis or trachea].

In the years 1980-1985 sutures were removed endoscopically from stumps and anastomoses in 52 patients operated in the years 1969-1985. The total number of bronchoscopies was 154, in 88 protruding threads into the airway lumen were removed. Interval between removal of first suture and date of surgery ranged from 0.5 to 192 months. Mycotic infection was diagnosed in 5 cases (9.6%). The causative agents being Aspergillus fumigatus and Candida albicans. In all cases removal of protruding threads lead to a complete cure. It was found that incidence of such mycotic infections decreased from 20.2% observed during the years 1962-1979 to 9.6% in the years 1980-1985.

Adult↗
PubMed1989

[Bacterial infections in pulmonary aspergilloma].

28 cavernoscopies were carried out in 26 patients. Complete or partial removal of mycetomas was achieved in 18 patients with 20 caverns. Under aerobic conditions Aspergillus fumigatus was cultured from the 28 removed mycetomas in 22 cases (78.6%) and bacterial organisms in 20 (71.4%). Bacteria were isolated from mycetomas that had demonstrable A. fumigatus organisms as well as from those that did not have them. In all infected mycetomas Gram negative rods were cultured, in only 4 cases Gram (+) cocci were found. Only in two cases of mycetomas under anaerobic conditions Gram (+) cocci were cultured. In most patients the organism could be demonstrated in sputum as well as in mycetomas. In 18 patients the pathogenic organism disappeared from sputum after removal of mycetomas. Also following removal of aspergillomas a decrease of sputum production was noted and it changed its character from purulent to mucoid.

Aspergillosis↗