Treatment resistant schizophrenia in Slovenian population

  • Tea Terzić University Psychiatric Hospital Ljubljana Studenec 48 1260 Ljubljana Polje Slovenia
  • Vita Dolžan University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Ljubljana, Slovenia
  • Matej Kastelic University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Ljubljana, Slovenia
  • Blanka Kores Plesničar University Psychiatric Hospital Ljubljana Studenec 48 1260 Ljubljana Polje Slovenia
Keywords: schizophrenia, antipsychotics, treatment resistant schizophrenia, treatment responsive schizophrenia, clozapine

Abstract

 

Abstract

Background. Approximately 30 % of patients with schizophrenia do not achieve remission upon antipsychotic treatment. The purpose of this article is to present the differences between treatment resistant and treatment responsive patients in Slovenian population.

Methods. The prospective study included 138 patients diagnosed with schizophrenia according to DSM IV. They were divided in the treatment responsive (94 patients) and resistant group (44 patients). Groups were compared regarding the basic demographic and treatment related data.

Results. Our results showed gender-related differences; the treatment resistant group included more men than women (p = 0.021), and men were younger than women (p = 0.019). In the treatment resistant group  the first psychotic episode occurred at a younger age (p = 0.005), on average it occured 3.86 years earlier than in the treatment responsive group. Treatment resistant patients had more hospitalizations (p = 0.001) and received higher doses of antipsychotic therapy in the past (p = 0.030) and present (p = 0.001). They were also prescribed clozapine earlier than the responsive group (p = 0.001). Regardless of the treatment response, patients living in a relationship had lower levels of total PANSS positive symptoms (p = 0.013) and total general symptoms (p = 0.050) than single and widowed patients.

Conclusions. We made a comparative study of a group of treatment resistant and treatment responsive schizophrenia patients in slovenian population for the first time. An early onset of the disease, male gender, more pronounced psychopathological symptoms and low global functioning can indicate increased risk for unfavourable disease progress. It is important that these patients are recognised early to ensure optimal treatment.

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Author Biographies

Tea Terzić, University Psychiatric Hospital Ljubljana Studenec 48 1260 Ljubljana Polje Slovenia
Center for clinical psychiatry
Vita Dolžan, University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Ljubljana, Slovenia

Inštitut za biokemijo Medicinske fakultete v Ljubljani, Vrazov trg 2, 1000 Ljubljana

 

prof.dr.

Matej Kastelic, University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Ljubljana, Slovenia
Inštitut za biokemijo Medicinske fakultete v Ljubljani, Vrazov trg 2, 1000 Ljubljana
Blanka Kores Plesničar, University Psychiatric Hospital Ljubljana Studenec 48 1260 Ljubljana Polje Slovenia

Psihiatrična klinika Ljubljana
Studenec 48
1260 Ljubljana Polje

 

prof.dr.

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Published
2014-10-19
How to Cite
1.
Terzić T, Dolžan V, Kastelic M, Kores Plesničar B. Treatment resistant schizophrenia in Slovenian population. TEST ZdravVestn [Internet]. 19Oct.2014 [cited 5Aug.2024];83(9). Available from: http://vestnik-dev.szd.si/index.php/ZdravVest/article/view/96
Section
Original article