在使用1分钟LT3抑制测试 (LT3s-RIT) 进行I放射性治疗后,在患有甲状腺单焦自主性和基线可检测TSH的患者中延长正常甲状腺功能
Jérôme Clerc1, Paul Bodin-Cufi2, Louise Giraud1
1Department of Nuclear Medicine, Cochin Hospital, Assistance Publique Hôpitaux de Paris, University Paris Cité, DMU Imagina, 75014 Paris, France.
Journal of clinical medicine
|November 13, 2025
概括
在放射性治疗 (I-RIT) 之前使用LT3的短期TSH抑制有效地治疗甲状腺单焦自主症 (UFA) 患者的亚临床甲状腺功能升高1级 (SCH G1). 这种方法促进了长期的甲状腺功能减弱症,并减少了与治疗相关的风险.
科学领域:
- 内分泌学 在内分泌学.
- 核医学就是核医学.
- 甲状腺学 甲状腺学
背景情况:
- 亚临床甲状腺功能增高1级 (SCH G1) 在甲状腺单焦自主性 (UFA) 中普遍存在,并与心血管风险有关.
- 放射性治疗 (I-RIT) 对UFA是有效的,但由于TSH刺激的额外结节吸收剂量 (AD) 可能导致甲状腺功能低下.
- 剩余的TSH刺激可以增加对非目标甲状腺组织的吸收剂量,从而导致治疗后的甲状腺功能低下症.
研究的目的:
- 调查在I-RIT期间短期的LT3诱导的TSH抑制是否会导致SCH G1.1的UFA患者长期的甲状腺功能减退症.
- 评估LT3抑制对TSH水平,甲状腺吸收和吸收剂量分布的影响.
- 评估这种治疗策略的长期临床结果.
主要方法:
- 在95名UFA患者的回顾性研究中,SCH G1患者于2001年至2024年期间接受治疗.
- 在I-RIT之前进行的基线和LT3后的甲状腺扫描与个性化剂量测量.
- 长期生物临床随访以监测甲状腺功能和治疗结果.
主要成果:
- 短期的LT3管理安全地降低了TSH水平,并显著降低了整个腺体和额外结节的I吸收 (p < 0.0001).
- 抑制LT3集中在UFA上的活动,保持UFA吸收剂量,同时显著减少额外结节性AD (61至37 Gy,p < 0.0001).
- 在88个月的随访中,93%的患者实现了正常的甲状腺功能,只有少数患者经历了持续的SCH G1或需要Levothyroxine (LT4) 治疗.
结论:
- 结合短暂的LT3诱导TSH抑制的I-RIT是一种有效的策略,可以在SCH G1的UFA患者中实现持续的甲状腺功能减退.
- 这种方法简化了辐射保护措施,并保证了对潜在的心血管益处的进一步调查.
- 该方法显示出有利的安全性和高效性,用于管理与UFA相关的SCH G1.
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