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脑血管意外(包括脑溢血、蛛网膜下腔出血、脑栓塞、脑血管血栓形成等)时,由于电解质紊乱、酸中毒、心肌内肾上腺素含量骤然增高、低血压、血循环障碍、新陈代谢和内分泌紊乱等因素,可引起心电图的改变。一般表现为Q-T间期延长、明显U波及直立高大或深而倒置的T波。这些变化多见于aVF、aVL及V_(4,6)导联,此外,尚可有ST段偏移,有时甚至出现酷似急性心肌梗塞的图型,造成误诊或延误合理治疗。上述心电图改变,多见于蛛网膜下腔出血,其次为急性脑栓塞,但是这些改变持续时间短暂,通常于发病后7～10天内原有变化回复正常或趋向正常。这些特点可与急性心肌梗塞的图型加以区别。一般认为,脑血管意外时,
Cerebrovascular accident (including cerebral hemorrhage, subarachnoid hemorrhage, cerebral embolism, cerebrovascular thrombosis, etc.), due to electrolyte imbalance, acidosis, sudden increase in myocardial adrenergic content, hypotension, circulatory disorders, metabolism and endocrine disorders Factors that can cause changes in the ECG. The general performance of the Q-T interval prolongation, obviously U wave and upright tall or deep and inverted T wave. These changes are more common in aVF, aVL and V_ (4,6) lead, in addition, there may still be ST segment offset, and sometimes even resembles acute myocardial infarction pattern, resulting in misdiagnosis or delay in the rational treatment. The ECG changes, more common in subarachnoid hemorrhage, followed by acute cerebral embolism, but these changes lasting short, usually 7 to 10 days after the onset of the original changes back to normal or normal. These characteristics can be distinguished from the pattern of acute myocardial infarction. Generally believed that cerebrovascular accident,