Our findings suggest that oral and

Our findings suggest that oral and intravenous hydration of patients within the 24 h before puncture prevented PLPH. The changes of TCD parameters partially confirm the theory of PLPH pathogenesis as a consequence of cerebrospinal fluid leakage through the post-puncture opening, with subsequent vasodilatation and ICP decrease. A history of headaches, low baseline values of PI, and high Vm predispose patients to PLPH occurrence.

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Results (English) 3:

我们的发现表明，穿刺前24小时内患者的口服和静脉水化可预防PLPH。TCD参数的变化部分证实了PLPH的发病机理，即穿刺后脑脊液漏，随后血管扩张，ICP降低。有头痛史，PI基线值低，Vm高，患者易发生PLPH。