Kulkarni Vidya P, Lin Kaiwen, Benbadis Selim R
University of South Florida and Tampa General Hospital, Tampa, FL 33606, USA.
J Clin Neurophysiol. 2007 Dec;24(6):433-7. doi: 10.1097/WNP.0b013e31815c2810.
The definition of the persistent vegetative state (PVS) is relatively straightforward, but its diagnosis can be challenging. We reviewed a series of EEG performed in patients with PVS to assess the diagnostic value of EEG. We reviewed records of all hospital patients with a diagnosis of persistent vegetative PVS. EEG findings included normal, continuous generalized slowing, intermittent generalized slowing, background slowing, background suppression, alpha, generalized periodic pattern, PLEDS, and triphasic waves. EEG findings had no association with etiology and varied from one pattern to another in the same patients' EEGs obtained at different times (see table). We conclude that EEG findings in PVS are heterogeneous and too variable to be of diagnostic value.
持续性植物状态（PVS）的定义相对简单明了，但其诊断可能具有挑战性。我们回顾了一系列在PVS患者中进行的脑电图（EEG）检查，以评估EEG的诊断价值。我们查阅了所有被诊断为持续性植物状态（PVS）的住院患者的记录。EEG结果包括正常、持续性广泛性慢波、间歇性广泛性慢波、背景性慢波、背景性抑制、α波、广泛性周期性模式、周期性局灶性癫痫样放电（PLEDS）和三相波。EEG结果与病因无关，并且在同一患者不同时间获得的脑电图中，结果从一种模式到另一种模式有所不同（见表）。我们得出结论，PVS患者的EEG结果具有异质性且变化太大，无法具有诊断价值。
