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Relations of electrocardiographic signs of autonomic balance to 5-year outcome in first-episode schizophrenia
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, Ulleråker, University Hospital.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, Ulleråker, University Hospital.
Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest university, North Carolina.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
(English)Manuscript (preprint) (Other academic)
Keyword [en]
Electrocardiography, First-episode, Psychosis, Remission, Autonomic balance, Prediction
National Category
Psychiatry
Research subject
Psychiatry
Identifiers
URN: urn:nbn:se:uu:diva-113776OAI: oai:DiVA.org:uu-113776DiVA: diva2:291930
Available from: 2010-02-04 Created: 2010-02-04 Last updated: 2010-02-08
In thesis
1. Prognostic Factors in First-Episode Schizophrenia: Five-year Outcome of Symptoms, Function and Obesity
Open this publication in new window or tab >>Prognostic Factors in First-Episode Schizophrenia: Five-year Outcome of Symptoms, Function and Obesity
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Our knowledge of prognostic factors and optimal treatment organisation in schizophrenia is incomplete. The disparity of outcome measures used has been a major obstacle for research. Increasing evidence has shown that schizophrenia is associated with increased cardiovascular mortality, development of obesity and autonomic nervous system imbalance. Assertive community treatment (ACT) has been suggested as a promising direction for organising treatment services for first-episode schizophrenia, but its long-term effect has not been evaluated.

One aim of the present thesis was to investigate prognostic factors for 5-year symptomatic and functional outcome and obesity development. A further aim was to evaluate a recently proposed definition of remission and examine the long-term effects of introducing a modified ACT programme (mACT). Thus, we performed a follow-up study of all consecutive first-episode psychosis patients in Uppsala County, Sweden during 1995-2000 (n=144).

In the first study we investigated the changes in a broad 5-year outcome of symptoms and function among patients presenting first time ever to psychiatric health care during 3 years before and during 3 years after the implementation of mACT. This change in the psychiatric service, however, was not followed by any long-term clinical benefits.

In the second study, we examined the association between remission of eight core schizophrenia symptoms and functional outcome. Remission was strongly associated with having good function and having a higher self-rated satisfaction with life.

In the third study, we explored a set of biochemical markers as predictors of weight gain and development of obesity. Haemoglobin, red blood cell count, hematocrit, γ-glutamyltransferase and creatinine were associated with the development of obesity in first-episode schizophrenia.

In the fourth and final study, we tested electrocardiographic measures of autonomic imbalance as predictors of symptomatic remission. Higher heart rate and high ST and T-wave amplitudes were related to symptomatic remission, indicating that cardiac autonomic imbalance at baseline may have a prognostic value in first-episode schizophrenia.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2010. 63 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 521
Keyword
First-episode, psychosis, schizophrenia, community mental health services, remission, functional outcome, biochemistry, obesity, weight-gain, prediction, autonomic balance, electrocardiography
National Category
Psychiatry
Research subject
Psychiatry
Identifiers
urn:nbn:se:uu:diva-113797 (URN)978-91-554-7719-6 (ISBN)
Public defence
2010-03-26, Sal X, Universitetshuset, Övre Slottsgatan, Uppsala, 09:15 (Swedish)
Opponent
Supervisors
Available from: 2010-03-05 Created: 2010-02-04 Last updated: 2010-03-05Bibliographically approved

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CiteExportLink to record
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Citation style
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