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Biomedical subjects

D Kleinhans

Publications and source records attributed to D Kleinhans.

At least 19 recordsLinked to original sources

[Successful induction of tolerance in an epilepsy patient with phenobarbital allergy].

We report on a 32-year-old female patient who had had a history of complex partial seizures since the age of 14. Phenobarbital was the most effective anticonvulsant drug in this patient. However, the drug treatment was complicated by a phenobarbital-induced exanthematous eruption. Reintroduction of the phenobarbital some years later resulted in a skin rash again; therefore, treatment with this substance had to be discontinued a second time. Because of the satisfactory antiepileptic efficacy, phenobarbital was introduced a third time using a desensitization procedure with increased oral doses, starting with a dose of 1 mg. After a daily dose of 90 mg phenobarbital, on day 6 an exanthematous eruption appeared. The exanthem disappeared parallel to a dose reduction of phenobarbital and with a gradually increasing dosage up to a maintenance dose of 200 mg. Tolerance to the allergic effect of phenobarbital was preserved and the seizure frequency was significantly reduced by phenobarbital monotherapy with a daily dose of 200-175 mg.

Adult↗

Latex-specific proteins causing immediate-type cutaneous, nasal, bronchial, and systemic reactions.

We examined 70 patients reporting hypersensitivity reactions caused by latex articles. All patients suffered from urticaria, 36 from rhinitis, 31 from conjunctivitis, 22 from dyspnea, and 17 from systemic reactions, and four patients developed severe systemic complications during surgery. By means of inhalative challenge tests with powdered latex gloves, it could be demonstrated that the glove powder (cornstarch) obviously functions as a carrier for latex allergens, which then become airborne. Five of 18 patients undergoing such challenge tests demonstrated a significant increase of specific airway resistance; 17, acute rhinitis and/or conjunctivitis; and two, a systemic reaction. Sixty-two percent of the patients demonstrated specific IgE antibodies to natural latex, 58% to an irradiatively cross-linked, so-called, "hypoallergenic" latex preparation, and 46% to commercial-latex RAST disks (Pharmacia). No specific antibodies to cornstarch or a mixture of rubber chemicals were found. A good correlation (82%) exists between latex IgE RAST and latex skin prick test, as revealed in a subgroup of 45 subjects. By means of sodium dodecyl sulfate-polyacrylamide gel electrophoresis, the latex allergen appears to be a mixture of proteins in a molecular weight range from 10 to 67 kd.

Adult↗

IgE-mediated allergic reactions to fruit gums and investigation of cross-reactivity between gelatine and modified gelatine-containing products.

A 32-year-old female reacted with a contact urticaria syndrome after eating 'gummy bears' (fruit gums). The reaction began in the oral mucosa and led to treatment on an inpatient basis. RAST measurements with allergen discs produced with gelatine and gelatine-containing products (among them 'gummy bears') demonstrated the presence of IgE antibodies in the serum of this patient. Proteins with molecular weights in the range of 40-120 kD were identified as the allergens in gelatine by using Western blot analysis. RAST inhibition showed cross-reactivity between gelatine, gelatine-containing products and the modified gelatine used in some plasma substitutes. Allergic reactions towards coloured fruit candies and 'gummy bears' may result from an IgE-mediated hypersensitivity towards gelatine. The long-known anaphylactoid reactions towards gelatine-containing plasma substitutes may, at least in part, be of an allergic nature.

Adult↗

[Heat-contact urticaria and cold-contact urticaria (case report)].

A 40-year-old female patient has been suffering from localized heat urticaria for 8 years and, in addition, from localized cold urticaria for 1 year. Both diseases could be proved by adequate physical tests. Exposition to localized heat provoked decreased serum complement, suggesting activation of the alternative pathway.

Adult↗

[Immunocytoma with acquired C1-esterase inhibitor deficiency and recurrent angioneurotic edema].

Four attacks of mucosal angioneurotic oedema occurred in a 57-year-old woman, requiring tracheotomy for one episode. Decreased or non-measurable levels of complement components C1q, C-1-INH and C4 pointed to a complement consumption. The basic disease was a pleomorphic immunocytoma with the production of monoclonal IgM. Treatment with danazol, 600 mg daily, raised the serum level of C-1-INH, but not of C4.

Angioedema↗

[Contact urticaria].

The paper summarizes the known data about contact urticaria, its clinical manifestations and pathogenetic mechanisms; together with examples from the literature and own case reports (not yet reported: contact urticaria provoked by roses). Eczematous dermatitis in contact urticaria patients is regarded as so-called late phase reaction. Further, an updated listing of causative agents is given.

Adult↗

[Pemphigus herpetiformis].

A 17-year-old female patient suffered from bullous dermatitis of the oral mucosa, followed by skin lesions about one year after first manifestation of the disease. Clinical picture, histopathology, as well as immunofluorescent findings proved herpetiform pemphigus. Here we discuss the typical characteristics of the disease.

Adolescent↗

[Burns caused by cement mortar (based on expert opinion)].

A 35-year-old farmer with scars on his right arm, following erosion obviously due to wet cement (case of an expert opinion), was examined. Cement water had continuously soaked his shirt while he was planing a freshly applied wet cement ceiling with his right arm upwards. The cement did not contain special additives, so the normal alkalinity of wet cement and occlusion effects caused the erosion. The farmer sued the manufacturer of the cement for damages because of missing warning notices. The court decided in his favor.

Adult↗