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The characteristics of increased rCBF in forebrain regions and decreased rCBF in posterior brain regions before treatment of OCD patients was a potentially predictor of treatment response to guide treatment options.
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In cases of NMS, clinicians previously believed that the risk for developing severe adverse effects such as EPS was lower with atypical versus typical antipsychotics. We identified 13 cases of NMS secondary to quetiapine in the literature via a search of MEDLINE/PubMed (1950-2008), and Iowa Drug Information Service (1966-2008). Seventy-five percent of previous reports of NMS secondary to quetiapine had reactions that included EPS. Common patient characteristics in our report and others included male sex, history of mental retardation, and treatment modalities used in NMS. Unique characteristics in this case included length of therapy without dosage change or titration and no known history of drug-related EPS. The Naranjo probability scale indicated a probable relationship between the development of NMS and quetiapine.
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Growing evidence suggests that immune dysfunction may be involved in the physiopathology of bipolar disorders, with typical first-line treatment using lithium and quetiapine serving to restore pro-inflammation status. This study aimed to explore the relationship between inflammatory cytokines-especially regulatory factors and the effect of combination treatment-with quetiapine and lithium in manic patients.
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Priapism is a "persistent erection not accompanied by sexual desire or stimulation, usually lasting more than six hours and typically involving only the corpora cavernosa." Here we report on a gay male patient from our HIV/AIDS mental health clinic who developed serious priapism on quetiapine and recreational amphetamine. Gay men are at high risk for amphetamine use, and as such, this potential association between priapism, quetiapine, and amphetamine use should be considered in making prescription decisions with these patients.
One group of antipsychotics (haloperidol, fluphenazine, risperidone, sulpirid) was not found to influence seizure activity: there was no significant difference in EEG and EMG registered seizure duration or in stimulus intensity between the treated and non-treated group. However, significant difference was found between the next treated and non-treated groups in 40% of the sessions in case of olanzapine, in 50% of the sessions in case of clozapine and in 57% of the sessions in case of zuclopenthixol in EEG or EMG registered seizure duration as well as in stimulus intensity. In the third group (quetiapine) there was a significant difference in each session (2nd session: EMG, p=0.02; 5th session: EEG, p=0.05, EMG, p=0.04). Most of the antipsychotics (olanzapine, clozapine, zuclopenthixol) have been shown to possess epileptogenic properties; only quetiapine reduces seizure activity.
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The patient was administered 200 mg/day topiramate, 600 mg/day quetiapine, 1000 mg/day valproate, 1200 mg/day gabapentin and 800 mg/day carbamazepine.
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"Atypical anti-psychotics" are substances of choice in treating drug-induced psychosis (DP) in Parkinson's disease (PD). We report on four patients with DP who received treatment with ziprasidone after previously applied clozapine and quetiapine had failed. Three patients showed a significant improvement of DP, without deterioration of motor function. In one case, ziprasidone considerably increased decline in off-periods. Two patients developed pathological laughing as a possible side-effect of ziprasidone. Ziprasidone may serve as an additional "atypical anti-psychotic" for the treatment of DP in PD but can also induce deterioration of motor function.
Both quetiapine and haloperidol produced a clear reduction in the Positive and Negative Syndrome Scale (PANSS) scores and Clinical Global Impression (CGI) Severity of Illness and Global Improvement scores. At day 42, the PANSS total score was reduced by -18.7+/-1.63 in the quetiapine group, and -22.1+/-1.63 in the haloperidol group (P = 0.13, between-treatment). Quetiapine was better tolerated than haloperidol in terms of EPS as demonstrated by the significant differences in the Simpson Scale and Abnormal Involuntary Movement Scale scores (P < 0.05). Although patients in both groups had elevated serum prolactin concentrations at baseline, mean serum prolactin concentration decreased (by 16.5 microg/l) in quetiapine-treated patients, yet increased (by 5.9 microg/l) in patients treated with haloperidol.