Symptomatic response to antipsychotics differs between recent onset and recurrent chronic schizophrenic patients

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Schizophrenia treatment response varies significantly among patients.
• Negative symptoms, such as withdrawal and retardation, can be persistent challenges in schizophrenia management.
• Understanding treatment response differences based on illness duration and admission history is crucial for prognosis.

Purpose of the Study:

• To assess the symptomatic response to standard antipsychotic treatment in patients with schizophrenia over the initial 4 weeks of hospitalization.
• To compare treatment response, particularly negative symptoms, between first-admission patients with recent-onset schizophrenia and those with recurrent illness of longer duration.

Main Methods:

• Utilized the Brief Psychiatric Rating Scale (BPRS) to evaluate 39 patients diagnosed with DSM-III schizophrenia in the active phase.
• Compared symptom changes, focusing on the withdrawal-retardation factor, between patients with first-time admissions and those with multiple admissions and longer illness duration.

Main Results:

• Overall significant symptomatic improvement was observed, yet 36% of patients showed no improvement or worsened.
• The withdrawal-retardation factor of the BPRS did not decrease in patients with recent-onset schizophrenia.
• Patients with multiple admissions and longer illness duration demonstrated significant improvement in withdrawal-retardation scores, unlike first-admission patients.

Conclusions:

• Standard antipsychotic treatment may have differential effects on negative symptoms based on illness chronicity and admission history.
• First-admission patients with recent-onset schizophrenia and deficit manifestations may have a poorer prognosis regarding negative symptoms.
• Longstanding illness may be associated with greater responsiveness of negative symptoms to antipsychotic treatment.