ABSTRACT
We followed up patients in the State Psychiatric Hospital Mauer-Ohling, Mauer-Ohling, Austria, who had been examined in 1982 to determine the prevalence of tardive dyskinesia (TD). Of the 861 patients examined in 1982, 270 were still in hospital 10 years later. Only these patients were included in our study. The SKAUB (Skala für abnorme unwillkürliche Bewegungen, i.e., The German version of the Abnormal Involuntary Movement Scale) was used to quantify the occurrence of TD. The prevalence rate of TD was 3.7% in 1982 and 12.7% in 1992. The 1992 prevalence rate in patients who had not shown TD symptoms in 1982 was 11.4%. The major risk factor for TD was advanced age.
Subject(s)
Dyskinesia, Drug-Induced/epidemiology , Adult , Age Factors , Aged , Antipsychotic Agents/administration & dosage , Antipsychotic Agents/adverse effects , Austria/epidemiology , Female , Follow-Up Studies , Hospitals, Psychiatric/statistics & numerical data , Humans , Male , Mental Disorders/drug therapy , Middle Aged , Prevalence , Risk FactorsABSTRACT
4 cases of acute lymphoblastic leukaemia (ALL), diagnosed as null-ALL by indirect immunofluorescence using monoclonal antibodies, were similarly investigated using a sensitive immunoperoxidase method. The Avidin-Biotin system was employed. The immunoenzymatic results were in agreement with those obtained with immunofluorescence techniques for all antigens except common-ALL (C-ALL). The C-ALL antigen, recognized by the J5 antibody, was detected only by the immunoperoxidase method on cell membranes of the 4 ALL. This paper discusses the possibility of false negative results in testing for C-ALL antigen by conventional indirect immunofluorescence as suggested by refined immunocytochemical screening. Moreover, the ability of the immunoperoxidase system to identify antigens on cell membranes, even at very low density, is discussed. The clinical significance of the presence of C-ALL antigen at weak intensity in cases of null-ALL is also considered.