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一名智力障碍成人可能与硫利达嗪相关的不对称性虹膜色素沉着:一例认识不足的精神药物不良反应

POSSIBLE THIORIDAZINE-ASSOCIATED ASYMMETRIC IRIS HYPERPIGMENTATION IN AN ADULT WITH INTELLECTUAL DISABILITY: AN UNDER-RECOGNIZED PSYCHOPHARMACOLOGIC ADVERSE-EFFECT CASE

Sunan: Erdem Ketta\u015f

Ülke: Turkey

Kurum: Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital, Dept. of Psychiatry

对于症状报告能力受限的患者,罕见不良反应的发现依赖于主动检查;可与黑色素结合的吩噻嗪类药物即使停用多年后,仍可能与色素沉着有关。

本研究旨在排除常见继发性原因后,评估既往硫利达嗪暴露能否解释不对称性虹膜色素沉着。患者为一名50岁女性,终生存在智力障碍及癫痫,曾连续14年服用硫利达嗪,剂量最高达600 mg/日,约8年前停药;合用的精神药物为卡马西平800 mg/日和喹硫平300 mg/日。临床医生在常规随访中偶然发现患者双侧虹膜色素沉着,右侧更为明显;向患者身边人员了解情况时,未获知任何视力相关主诉。随后请眼科会诊,系统排除继发性原因,未发现特定的眼科病因。文献指出,吩噻嗪类药物可与黑色素高亲和力结合并蓄积于葡萄膜组织,硫利达嗪证据最充分的眼毒性为色素性视网膜病变,且100例长期用药者中有73例出现眼部色素沉着。在因果关系评估中,较高的累积剂量、缺乏更有说服力的其他病因,以及与迟发性眼毒性相符的黑色素亲和力,均支持其可能与硫利达嗪相关;8年的停药间隔仍处于文献报道的组织持留时间范围内(有报道在停药后13至28年出现视网膜改变),但针对虹膜的证据仅来自氯丙嗪和丙米嗪的类比,属于间接支持,因此依据WHO-UMC(世界卫生组织乌普萨拉监测中心)因果关系评价标准,未将其因果关系评定为高于“可能”的等级。患者虹膜呈深绿色,且因大部分时间居家生活而日晒有限,使光毒性因素参与的可能性较低。作者指出,当患者无法自行报告症状时,不良反应的发现依赖于主动检查及及时转诊;对长期使用精神药物的智力障碍成人,应持续开展多维度随访,而因果关系证据有限的病例报告同样有助于形成药物警戒信号。本文发表已获得患者法定代理人的书面知情同意。

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APA 7: Ketta\u015f, E., et al. (2026, September 23-26). Possible thioridazine-associated asymmetric iris hyperpigmentation in an adult with intellectual disability: an under-recognized psychopharmacologic adverse-effect case [E-poster]. 26th WPA World Congress of Psychiatry (WCP 2026), Stockholm, Sweden. https://cslide.ctimeetingtech.com/wcp26/attendee/eposter/file/973

Vancouver: Ketta\u015f E, et al. Possible thioridazine-associated asymmetric iris hyperpigmentation in an adult with intellectual disability: an under-recognized psychopharmacologic adverse-effect case [e-poster]. 26th WPA World Congress of Psychiatry (WCP 2026); 2026 Sep 23-26; Stockholm, Sweden. Available from: https://cslide.ctimeetingtech.com/wcp26/attendee/eposter/file/973

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Sitenin son güncellemesi: 8 Kasım 2026 · Site editörü: Doç. Dr. Alişan Burak Yaşar, info@alisanburak.com