與嚴重程度的關聯是重要的臨床特徵。合併Terson症候群的SAH患者死亡率顯著高於未合併者,系統性回顧報告為43% vs 9%(勝算比4.8)1),另一報告為28.6% vs 2.0%2),與ICP相關的研究報告勝算比為45.03)。格拉斯哥昏迷量表(GCS)分數越低,Hunt和Hess分級及Fisher分級越高,越容易合併Terson症候群2,3)。
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