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首发精神分裂症:药物治疗与心理社会干预

[First-episode schizophrenia: Pharmacotherapy and psychosocial interventions].

作者信息

Garyfallos G

机构信息

2nd University Department of Psychiatry, Aristotle University of Thessaloniki, Greece.

出版信息

Psychiatriki. 2007 Jan;18(1):29-46.

Abstract

The first episode of schizophrenia is a field of great interest from both clinical and research perspectives. Most clinical and psychosocial deterioration in schizophrenia occurs within the first 5 years of the onset of the illness, suggesting that this is a critical period for treatment initiation. Therefore, early detection and subsequent effective therapeutic intervention are vital for the patient, as they significantly determine the course and the long term outcome of the disease. Pharmacotherapy is the cornerstone of the whole therapeutic approach. Patients with first-episode psychosis are comparatively more treatment responsive than patients with multiple episodes. They need lower doses of antipsychotic medication but at the same time are quite sensitive to side effects mainly to extrapyramidal symptoms and signs. All current guidelines consider second generation antipsychotics as first choice drug for first episode schizophrenics. Data from few double blind randomized clinical trials indicate that the newer agents show equal or even better efficacy than the neuroleptics and to a certain extend fewer side effects, mainly extrapyramidal symptoms. Despite initial symptom reduction, achievement of full remission -particularly if it is defined according to strict criteria- and even more, achievement of full recovery remains unsatisfactory. Predictors of poor short term and long term outcome include male gender, low educational level, "soft" neurological signs, severe positive symptoms at baseline, cognitive deficits at intake, poor premorbid functioning especially during adolescence, prefrontal neuronal dysfunction, extrapyramidal symptoms and tardive dyskinesia early in treatment, long duration of untreated psychosis or untreated illness. Although published guidelines do not make definitive recommendations about the duration of maintenance treatment after the first episode, recent data suggest that 1 or 2 years might not be adequate. Medication adherence is problematic in first episode schizophrenics even within the first six months. Poor adherence is predicted by male gender, younger age, poor insight after discharge, severe positive symptoms at baseline, alcohol and drug abuse, inadequate family involvement, lower occupational status, not positive relationship with the psychiatrist, bad admission experience and medication side effects. Adjunctive psychosocial interventions may be beneficial across a variety of domains and can assist with symptomatic and functional recovery. Cognitive-behavior therapy has shown modest efficacy in reducing symptoms and assisting patients in adjusting to their illness but has shown minimal efficacy in reducing relapse. Some reports support the benefits of family interventions, while there is a paucity of data evaluating group inter ventions. Comprehensive (i.e. multi element) treatment approaches show promise in reducing symptoms and hospital readmissions as well as improving functional outcomes. More randomized controlled trials are needed to evaluate the ef fectiveness of psychosocial interventions, in general, in first-episode psychosis patients.

摘要

精神分裂症的首发阶段在临床和研究视角上都是一个备受关注的领域。精神分裂症的多数临床和社会心理衰退都发生在疾病发作的头5年内,这表明这是开始治疗的关键时期。因此,早期发现及后续有效的治疗干预对患者至关重要,因为它们显著决定了疾病的进程和长期预后。药物治疗是整个治疗方法的基石。首发精神病患者相较于多次发作的患者对治疗的反应相对更好。他们需要较低剂量的抗精神病药物,但同时对副作用(主要是锥体外系症状和体征)相当敏感。所有现行指南都将第二代抗精神病药物视为首发精神分裂症患者的首选药物。少数双盲随机临床试验的数据表明,新型药物显示出与抗精神病药物同等甚至更好的疗效,并且在一定程度上副作用更少,主要是锥体外系症状。尽管初始症状有所减轻,但实现完全缓解——尤其是如果根据严格标准定义——甚至更难的是实现完全康复,情况仍不尽人意。短期和长期预后不良的预测因素包括男性、低教育水平、“软性”神经体征、基线时严重的阳性症状、入院时的认知缺陷、病前功能不佳(尤其是在青少年期)、前额叶神经元功能障碍、治疗早期的锥体外系症状和迟发性运动障碍、未治疗的精神病或疾病的持续时间长。尽管已发表的指南未就首发后维持治疗的持续时间做出明确建议,但最近的数据表明1年或2年可能并不足够。首发精神分裂症患者即使在头6个月内药物依从性也存在问题。男性、年龄较小、出院后洞察力差、基线时严重的阳性症状、酒精和药物滥用、家庭参与不足、职业地位较低、与精神科医生关系不积极、入院体验不佳以及药物副作用可预测依从性差。辅助性社会心理干预可能在多个领域有益,并有助于症状和功能恢复。认知行为疗法在减轻症状和帮助患者适应疾病方面已显示出一定疗效,但在减少复发方面疗效甚微。一些报告支持家庭干预的益处,而评估团体干预的数据则很少。综合性(即多要素)治疗方法在减轻症状、减少再次入院以及改善功能结局方面显示出前景。总体而言,需要更多随机对照试验来评估社会心理干预对首发精神病患者的有效性。

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