Electroencephalographic findings in consecutive emergency department patients with altered mental status: a preliminary report.
Electroencephalographic findings in consecutive emergency department patients with altered mental status: a preliminary report.
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连续急诊科精神状态改变患者的脑电图结果：初步报告。
DOI：
10.1097/mej.0b013e32835473b1
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Grant,ArthurC
中科院分区：
文献类型：
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作者：
Zehtabchi,Shahriar;AbdelBaki,SamahG;Grant,ArthurC
脑电图 (EEG) 可以帮助缩小精神状态改变 (AMS) 的鉴别诊断范围，并且对于诊断非惊厥性癫痫发作 (NCS) 是必要的。这项前瞻性观察性研究的目的是确定急诊科 AMS 患者脑电图异常的患病率。年龄至少 13 岁的 AMS 患者被纳入研究，而那些具有容易识别的 AMS 原因（例如低血糖）的患者被排除在外。 AMS 的原因很容易识别（例如低血糖）。使用标准 19 个电极对每位患者进行 30 分钟的脑电图检查。描述性统计数据（%，95% 置信区间）用于报告前 50 名入组患者的脑电图结果。 35 例脑电图（70%、57-81%）异常。最常见的异常是背景活动减慢（46%、33-60%），反映了潜在的脑病。 3 例（6%、1-17%）被诊断为 NCS，其中包括 1 例非惊厥性癫痫持续状态患者。 9 名患者（18%、10-31%）有发作间期癫痫样异常，表明自发性癫痫发作的风险增加。因 AMS 到急诊科就诊的患者脑电图异常（包括 NCS）的患病率很高。
Electroencephalography (EEG) can help narrow the differential diagnosis of altered mental status (AMS) and is necessary to diagnose nonconvulsive seizure (NCS). The objective of this prospective observational study is to identify the prevalence of EEG abnormalities in emergency department patients with AMS. Patients of at least 13 years of age with AMS were enrolled, whereas those with an easily identifiable cause (eg hypoglycemia) underlying their AMS were excluded. Easily identifiable cause of AMS (eg hypoglycemia). A 30-min EEG with the standard 19 electrodes was performed on each patient. Descriptive statistics (%, 95% confidence interval) are used to report EEG findings of the first 50 enrolled patients. Thirty-five EEGs (70%, 57–81%) were abnormal. The most common abnormality was slowing of background activities (46%, 33–60%), reflecting an underlying encephalopathy. NCS was diagnosed in three (6%, 1–17%), including one patient in nonconvulsive status epilepticus. Nine patients (18%, 10–31%) had interictal epileptiform abnormalities, indicating an increased risk of spontaneous seizure. Patients presenting to the emergency department with AMS have a high prevalence of EEG abnormalities, including NCS.