Posttraumatic stress disorder (PTSD) is linked to a specific event, providing the opportunity to intervene in the immediate aftermath of trauma to prevent the development of this disorder. A previous trial demonstrated that trauma survivors who received three sessions of modified prolonged exposure therapy demonstrated decreased PTSD and depression prospectively compared to assessment only. The present study investigated the optimal dosing of this early intervention to test one versus three sessions of exposure therapy in the immediate aftermath of trauma.

中文翻译：

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研究早期干预以预防创伤后应激障碍的最佳剂量：一项多组随机试验，包括一期和三期改良长期暴露。

创伤后应激障碍 (PTSD) 与特定事件有关，提供了在创伤后立即进行干预以防止这种疾病发展的机会。先前的一项试验表明，与仅进行评估相比，接受三期改良长期暴露疗法的创伤幸存者前瞻性地证明了 PTSD 和抑郁症的减少。本研究调查了这种早期干预的最佳剂量，以测试在创伤后立即进行一次与三次暴露治疗。