title: A descriptive retrospective study of the treatment and outpatient service use in a clinical group of delusional disorder patients.
abstract: BACKGROUND
  Gender differences in attendance rates for appointments in delusional disorder have been poorly studied. Furthermore, delusional disorder is traditionally considered a treatment-resistant disorder.
  
  
  METHODS
  We conducted a longitudinal retrospective study with a one-year follow-up, including 78 delusional disorder patients (DSM-IV-TR), consecutively admitted over a period of 10 years. We performed a follow-up for one year in order to describe demographic and clinical variables, and to compare the therapeutic effectiveness. In this study, due to the non-interventional nature of this study, indirect measures were used to measure treatment effectiveness. The sample was divided into three groups according to the antipsychotic received at the first admission.
  
  
  RESULTS
  Twenty-three patients received Risperidone Long-Acting Injection (RILD), 30 oral risperidone, and 25 patients received other oral atypical antipsychotics. Delusional disorder women had a later age at onset and needed a longer duration of hospitalization. No statistically significant differences were found between the three treatment groups as regards demographic data, social and personal functioning, and psychopathology at admission. The RILD group showed higher maintenance rates at the end of the follow-up period. Furthermore, the RILD group required treatment with antidepressants and benzodiazepines less often.
  
  
  CONCLUSIONS
  We concluded that treatment with RLAI may increase maintenance rates at follow-up in DD patients when compared with other oral atypical antipsychotics.
authors.affiliation: Servicio de Psiquiatría, Hospital Clínic de Barcelona, Barcelona, España. Electronic address: alexgonzalezrguez@gmail.com.
authors.forename: Alexandre
authors.initials: A
authors.lastname: González-Rodríguez
authors.affiliation: Servicio de Psiquiatría, Hospital Universitari Mútua de Terrassa, Terrassa, España.
authors.forename: Oriol
authors.initials: O
authors.lastname: Molina-Andreu
authors.affiliation: Servicio de Psiquiatría, Hospital Clínic de Barcelona, Barcelona, España.
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Imaz Gurrutxaga
authors.affiliation: Servicio de Psiquiatría, Hospital Clínic de Barcelona, Barcelona, España; Unidad de Esquizofrenia, Instituto Clínico de Neurociencias, Hospital Clínic de Barcelona, Barcelona, España.
authors.forename: Rosa
authors.initials: R
authors.lastname: Catalán Campos
authors.affiliation: Servicio de Psiquiatría, Hospital Clínic de Barcelona, Barcelona, España; Unidad de Esquizofrenia, Instituto Clínico de Neurociencias, Hospital Clínic de Barcelona, Barcelona, España; Departamento de Psiquiatría y Psicobiologia Clínica, Universitat de Barcelona, Barcelona, España; Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, España; Centro de Investigación Biomèdica en Red de Salud Mental (CIBERSAM), España.
authors.forename: Miquel Bernardo
authors.initials: MB
authors.lastname: Arroyo
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000553:Ambulatory Care / Q000706:statistics & numerical data*; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D003692:Delayed-Action Preparations; D005260:Female; D005500:Follow-Up Studies; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007267:Injections; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018967:Risperidone / Q000627:therapeutic use*; D012563:Schizophrenia, Paranoid / Q000188:drug therapy*; D012737:Sex Factors; D016896:Treatment Outcome
chemical_list: D014150:Antipsychotic Agents; D003692:Delayed-Action Preparations; D018967:Risperidone
keywords: Delusional disorder; Efectividad terapéutica; Gender; Género; Paranoid disorders; Trastorno delirante; Trastornos paranoides; Treatment effectiveness