C Stuppäck’s research while affiliated with Paracelsus Medical University and other places

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Publications (40)


Longitudinal volumetric MRI study in first- and multiple-episode male schizophrenia patients
  • Article

January 2006

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40 Reads

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69 Citations

Psychiatry Research

Alexandra B Whitworth

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Georg Kemmler

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Michaela Honeder

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[...]

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In this longitudinal study we compared brain volume changes in first- and multiple-episode patients with schizophrenia to normal aging changes observed in healthy control subjects scanned at comparable times. Two to four years after an initial examination including MRI volumetry, we followed up 21 first episode patients, 17 patients after multiple episodes of schizophrenia, and 20 healthy controls. Volumetric measurements of left and right hemispheres, total brain volume, lateral ventricles, hippocampus and amygdala as well as a clinical evaluation were performed. Patients with schizophrenia showed significant ventricular enlargement and volume reduction of the hippocampus-amygdala complex compared with healthy control subjects both at baseline and follow-up. While there were no differences between patients and controls with respect to mean annual volume changes in the measured regions, patients with schizophrenia showed higher between-subject variability in ventricular volume change. These data are consistent with cross-sectional studies demonstrating ventricular enlargement and hippocampal volume deficits in schizophrenia. However, we were not able to demonstrate a difference in the rate of volume changes over time that distinguished patients with schizophrenia from healthy controls for any of the brain structures measured. Drawbacks of the study are that the follow-up was done after a relatively short interval and that there was a difference in time to follow-up and age between patients and controls. Our results do not support the hypothesis that schizophrenia leads to progressive volume reduction in these areas, although there may be a subset of patients with morphologically visible disease progression.


Intravenous Versus Oral Administration of Amitriptyline in Patients With Major Depression

September 2000

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148 Reads

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16 Citations

Journal of Clinical Psychopharmacology

Antidepressants can be administered by different routes. Advantages for either the oral or the intravenous administration have been suggested from pharmacokinetic as well as from clinical points of view. Controlled comparison studies of the two routes do not provide unequivocal recommendations. In this investigation, amitriptyline was studied over a 4-week period consisting of a 2-week, double-blind/double-dummy phase with either oral (150 mg/day), high-dose intravenous (150 mg/day), or medium-dose intravenous (100 mg/day) treatment and a 2-week phase of open oral treatment in 80 patients with major depression. A psychopathologic assessment was made using the Hamilton Rating Scale for Depression, the Clinical Global Impressions Scale, the von Zerssen's "Befindlichkeitsskala," an adjective checklist, and a Visual Analog Scale. No significant differences were found concerning the mean scores of the rating scales or time of onset of action in the physicians' ratings. In the patients' self-ratings, there was an earlier therapeutic effect in the high-dose intravenous group. The number of improvers after 7 days was significantly higher in the high-dose intravenous group compared with both other groups. After 14 days, no significant differences in the numbers of improvers and responders between groups were detected. The results of this study do not clearly favor one of the tested options. The main differences found in this study seem to be dose-related rather than differentiating between oral and intravenous routes of administration.


Hippocampal volume reduction in male schizophrenic patients

June 1998

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19 Reads

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67 Citations

Schizophrenia Research

Using magnetic resonance imaging of the brain, we examined volumetric measurements of total brain, hemispheres, lateral ventricles and the hippocampus/amygdala complex in male subjects (41 first-episode schizophrenics, 30 chronic schizophrenic patients and 32 healthy controls). We found significantly smaller total brain size in the chronic schizophrenic group, significantly larger lateral ventricles in both patient groups and hippocampal volume reduction bilaterally in first-episode patients (-13.2% left, -12.05% right) and chronic patients (-10.6% left, -10.5% right) compared to controls--irrespective of diagnostic subtype, family history for psychiatric diseases, psychopathology, duration of illness or age at onset.






Clozapin in der Schwangerschaft: Medikamentenkonzentrationen in mütterlichem und fötalem Plasma, Fruchtwasser und Muttermilch

January 1996

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27 Reads

Es wird über die Schwangerschaft einer 31 jährigen Patientin, die seit ihrem 24 Lebensjahr an Schizophrenie erkrankt ist, berichtet. Die Patientin steht unter Clozapin-Dauermedikation, herkömmliche Neuroleptika wurden nicht toleriert. Mit einer Tagesdosis von 100mg war die Patientin die letzten 5 Jahre vor ihrer Schwangerschaft symptomfrei. Wegen Kinderwunsch versuchte die Patientin Clozapin vor einer geplanten Schwangerschaft abzusetzen, das Wiederauftreten von Halluzinationen zwang jedoch zur Beibehaltung der Medikation. Nach eingehender medizinischer Beratung entschloß sich die Patientin zur Schwangerschaft unter Clozapin-Medikation.


Multicentre double blind study of paroxetine and amitriptyline in elderly depressed patients

July 1995

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17 Reads

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70 Citations

Psychopharmacology

Paroxetine is a phenylpiperidine compound which is a selective serotonin reuptake inhibitor (SSRI). Ninety-one hospitalised patients with a major depression (DSM-III) aged 65 and over from six Austrian and one German center were entered into the study, which compared the efficacy and tolerability of paroxetine versus amitriptyline. After 6 weeks both groups showed similarly good therapeutic results. In the paroxetine group, 64.3% of the patients had a 50% or more reduction of the HAMD total score compared to 58.1% in the amitriptyline group. Side effects were distributed similarly in both groups. Patients in the paroxetine group showed a higher incidence of anxiety and agitation; anticholinergic side effects were registered more often in the amitriptyline group.



Citations (20)


... Clozapine and zotepine were again very similar in both time course of improvement and level of symptom reduction attained. This result is in accordance with previous reports demonstrating better efficacy of clozapine ( Kane et al., 1988) and zotepine ( Barnas et al.. 1991, 1992: Dieterle et al.. 1987. 1988) in reduction of negative symptoms when compared to conventional antipsychotics. ...

Reference:

Improvement of Cognitive Function in Schizophrenic Patients Receiving Clozapine or Zotepine: Results from a Double-Blind Study
Zotepin: Die Behandlung schizophrener Patienten mit vorherrschender Negativsymptomatik. Eine Doppelblindstudie vs. Haloperidol
  • Citing Article
  • September 1991

Fortschritte der Neurologie · Psychiatrie

... The substituted dibenzothiepine zotepine has been used in Germany as an atypical antipsychotic since 1990.While double-blind trials have demonstrated that the substance induces less extrapyramidal side-effects than typical neuroleptics ( Fleischhacker et al.. 1991;Klieser et al., 1991) and improves negative symptoms significantly better ( Bomas et al.. 1991, 1992: Dieterle et al., 1987, 1988, no studies are available that investigate the effect of zotepine on cognitive dysfunction in schizophrenia. We report results from a double-blind trial i n which zotepine was tested against clozapine. ...

Zotepin vs. Haloperidol bei paranoider Schizophrenie: eine Doppelblindstudie
  • Citing Article
  • September 1991

Fortschritte der Neurologie · Psychiatrie

... Indeed, the receptor-binding profile of ZTP displays antagonism of the dopamine D2 and serotonin 5-HT2A receptors, similar to other atypical antipsychotics [4,5]. ZTP is effective in managing positive and negative symptoms of schizophrenia with low extrapyramidal symptom liability [6][7][8][9]. Furthermore, several clinical studies have reported the effectiveness of ZTP in treating bipolar disorder [10][11][12][13]. ...

Zotepine in the treatment of schizophrenic patients with prevailingly negative symptoms. A double-blind trial vs. Haloperidol
  • Citing Article
  • February 1992

International Clinical Psychopharmacology

... [6]. Aus- trijoje, kaip ir pas mus, daugiausia receptus išrašo šeimos gydytojai (atitinkamai 60% ir 71,2%) [7]. Panašus pirmojo paskyrusio benzodiazepinus gydytojų procentas LSMUL KK Šeimos medicinos klinikoje: šeimos gydytojas skyrė 65,31 % atvejų, psichiatras -24,49 %; bei Italijos tyrime: šeimos gydytojas -70,0 %, neurologas ar psichiatras -9,7% [5]. ...

Characteristics of benzodiazepine long-term users: investigation of benzodiazepine consumers among pharmacy customers
  • Citing Article
  • February 1991

Psychopharmacology

... Lithium (up to 0.6 mmol/l) and carbamazepine (up to 40 mmol/l) were also found to have comparable long-term efficacy in bipolar and unipolar patients in three open-label studies ranging from 1.2 to 2.0 yr duration (Bellaire et al., 1990 ;Cabrera et al., 1987 ;Simhandl et al., 1993). Furthermore, Stuppaeck et al. (1990) found that 20 out of 24 (83 %) bipolar and unipolar depressive patients treated for 20.2 months with carbamazepine (mean dose 600-800 mg/d) could be judged to have experienced 'substantial benefit '. Overall, these lithium-refractory patients showed a significant reduction from 2.27 to 0.75 in yearly depressive episodes (p<0.0001). ...

Carbamazepine in the Prophylaxis of Mood Disorders
  • Citing Article
  • March 1990

Journal of Clinical Psychopharmacology

... Gomparaison des résultats ll est difficile de comparer nos résultats à ceux de la littérature, chaque étude, chaque structure hospitalière ayant ses particularités. Cependant, le travail de Fleischhacker (7), par son protocole de recueil de données, présente des similitudes avec le nôtre. Une partie des résultats sont proches des nôtres : les services de psychiatrie et de radiothérapie sont chaque fois classés parmi les gros consomma- dans les deux villes, les résultats confirment la plus grande utilisation des BZD par les femmes que par les hommes. ...

Benzodiazepines: Utilization and Patterns of Use in a University Hospital
  • Citing Article
  • June 1989

Pharmacopsychiatry

... For these reasons, in clinical settings, ZTP has been reported to show not only antipsychotic but also antidepressive and anxiolytic effects in patients with schizophrenia [200,201]. Furthermore, ZTP is also known to exert a rapid anti-manic effect without inducing depression in patients with severe mania [202]. ...

Zotepine vs. haloperidol in paranoid schizophrenia: A double-blind trial
  • Citing Article
  • February 1989

Psychopharmacology Bulletin

... Barnas et al. (1992) demonstrated superiority over haloperidol in residual patients with prevailing negative symptoms, but only used a high SANS score (N50) at intake and did not consider secondary negative symptoms; EPS were also significantly higher in the haloperidol group. Another study found a positive effect in outpatients who had prominent negative symptoms with no acute exacerbation for at least 5 months (Fleischhacker et al., 1987). Möller et al. (2004) found a pronounced improvement in primary negative symptoms after controlling for positive symptoms, depression and EPS, but no statistical difference compared with placebo. ...

Zotepine in the Treatment of Negative Symptoms in Chronic Schizophrenia
  • Citing Article
  • March 1987

Pharmacopsychiatry

... In fact, in the elderly population the evidence showing that SSRIs are safer than TCAs is not striking and there are many conflicting reports (Livingston and Livingston, 1999). Indeed, while some studies have reported that sertraline (Cohn et al., 1990), fluoxetine (Altamura et al., 1989) and paroxetine (Hutchinson et al., 1992) cause fewer side effects than TCAs, others have described similar safety profiles between sertraline (Bondareff et al., 2000;Forlenza et al., 2000), fluoxetine (Wehmeier et al., 2005), paroxetine (Geretsegger et al., 1995) and TCAs. ...

Multicentre double blind study of paroxetine and amitriptyline in elderly depressed patients
  • Citing Article
  • July 1995

Psychopharmacology