Silveira J M, Seeman M V
Department of Psychiatry, University of Toronto, Ontario.
Can J Psychiatry. 1995 Sep;40(7):389-95.
To search the literature to reassess the concept of shared psychotic disorder (SPD) using modern nosology and current biopsychosocial formulation.
Analyzing published case reports from 1942 through to 1993 that meet DSM-IV criteria for SPD according to patient age, sex, nature and duration of the relationship with the "primary", length of exposure to primary's psychosis, family psychiatric history, comorbidity, social isolation of the dyad, presence of hallucinations, delusional type, and the diagnosis of the primary.
Findings revealed: 1. males and females were affected with equal frequency; 2. there was equal prevalence in younger and older patients; 3. the majority of shared psychoses (90.2%) were equally distributed among married couples, siblings, and parent-child dyads; 4. comorbid dementia, depression, and mental retardation were common; 5. hallucinations were common; 6. the majority of dyads (67.3%) were socially isolated.
SPD probably occurs in premorbidly disposed individuals in the context of social isolation which is shared with a psychotic person.
检索文献，运用现代疾病分类学和当前的生物心理社会模式重新评估共享性精神病性障碍（SPD）的概念。
分析1942年至1993年发表的符合SPD的DSM-IV标准的病例报告，依据患者的年龄、性别、与“原发者”关系的性质和持续时间、接触原发者精神病的时长、家族精神病史、共病情况、二元组的社会隔离情况、幻觉的存在、妄想类型以及原发者的诊断。
研究结果显示：1. 男性和女性受影响的频率相同；2. 年轻患者和老年患者的患病率相同；3. 大多数共享性精神病（90.2%）在已婚夫妇、兄弟姐妹和亲子二元组中分布均匀；4. 共病痴呆、抑郁和智力障碍很常见；5. 幻觉很常见；6. 大多数二元组（67.3%）处于社会隔离状态。
SPD可能发生在与精神病患者共享社会隔离状态的病前易患个体中。
