Treatment of Patients With Tardive Dystonia With Olanzapine
Why this work is in the frame
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Bibliographic record
Abstract
Tardive dystonia represents a complication of long-term use of neuroleptics and its treatment is often unsatisfactory. Atypical neuroleptics appear to improve tardive dystonia, and cases of tardive dystonia successfully managed with clozapine have been reported. The aim of this open-label video-blinded study was to evaluate the antidystonic efficacy of olanzapine, a new atypical neuroleptic with a low risk of agranulocytosis, in a group of four patients (one man and three women) with tardive cervical dystonia. They developed severe dystonia after several years of neuroleptic treatment. Extensive laboratory evaluations, as well as neurophysiologic and neuroradiologic investigations, were negative. Olanzapine was started at a dose of 5 mg/d and increased up to 7.5 mg/d. All patients were evaluated at baseline and after 2, 4, 8, and 12 weeks of treatment, using the Toronto Western Spasmodic Torticollis Rating Scale, and videotaped. At the end of the trial, the videotapes were reviewed and scored by a blind observer. A self-rating visual analog scale completed the disability evaluation.A moderate to marked improvement in dystonia was observed in all patients, and significant differences were observed in Toronto Western Spasmodic Torticollis Rating Scale scores and videotape ratings after 8 and 12 weeks of treatment compared with the basal values (p < 0.05). The average percentage of improvement in Toronto Western Spasmodic Torticollis Rating Scale score and visual analog scale was 26.4% and 42.6%, respectively. No serious side effects were reported at the maximum dosage reached (7.5 mg/d). This study warrants a larger controlled study to conclusively demonstrate the efficacy of olanzapine in tardive dystonia.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it