大脑后动脉区梗死三偏征的临床特点

Clinical characteristics of 3-Hemi-syndrome caused by posterior cerebral artery infarction

目的提高对大脑后动脉区梗死(PCAI)所致三偏征临床特点的认识。方法对16例伴有三偏征的PCAI患者行MRI检查,并对临床资料进行分析。结果 PCAI的三偏征患者中,偏面盲和偏身感觉障碍表现突出,治疗效果较差,但偏身运动障碍恢复快。磁共振成像(MRI)上,丘脑?中脑?颞枕叶梗死3例;颞枕叶、丘脑梗死7例;颞枕叶梗死4例;枕叶梗死2例。结论大脑后动脉(PCA)病变与颈内动脉系统病变所致三偏征不同,MRI检查有助于确定临床与解剖之间的关系。

Objective To understand the clinical features of trihmiparalysis sign（3-Hemi-syndrome） in the posterior cerebral artery infarction（PCAI）.Methods The clinical features of PCAI were analyzed in 16 patients.Results Hemiparesthesia and hemianopia appeared to be predominant with poor outcomes of treatment,but hemiplegia recovered easily.MRT showed infarction of the thalamus,midbrain and temporal occipital in 3 case,of temporal occipital and thalamus in 7 cases,of temporal 4 cases,and of occipital in 2 cases.Conclusion The trihmiparalysis sign of PCAI lessions is different from that of internal cerebral artery infarction.MRI is helpful in evaluating the relationship between clinical and anatomical features of trihmiparalysis sign.