ABSTRACT
Objective To analyze the classification of etiology in 48 patients with acute isolated pontine infarction (IPI),a special subtype of ischemic stroke,according to the characteristics of Chinese ischemic stroke subclassification (CISS) and Kumral ischemic stroke subclassification.Methods The basic characteristics,risk factors,clinical manifestations of 48 acute IPI patients were analyzed according to the CISS and Kumral ischemic stroke subclassification.Results Hypertension (70.83 ％),smoking (64.58 ％),hyperlipidemia (50.00 ％),and abnormal glucose metabolism (37.50％) were the major risk factors for acute IPI.Of the 48 acute IPI patients,38 (79.17％) manifestated as hemiplegia and 15 (31.25％) manifestated as dizziness,33 (68.75％) were diagnosed as paramedian pontine infarction,a most common location of IPI,16 (33.33％) were diagnosed as large artery occlusion,a major subtype of IPI,according to the Kumral ischemic stroke subclassification,17 (35.42％) were diagnosed as intracranial and extracranial large artery atherosclerosis according to the CISS (P=0.830).Conclusion IPI is mainly manifested as paramedian pontine infarction.Large artery occlusion according to the Kumral ischemic stroke subclassification and intracranial and extracranial large artery atherosclerosis according to the CISS are the major subtypes of IPI.IPI is diagnosed when a large part of brainstem is involved.
ABSTRACT
Objective To analyze the classification of etiology in 48 patients with acute isolated pontine infarction (IPI),a special subtype of ischemic stroke,according to the characteristics of Chinese ischemic stroke subclassification (CISS) and Kumral ischemic stroke subclassification.Methods The basic characteristics,risk factors,clinical manifestations of 48 acute IPI patients were analyzed according to the CISS and Kumral ischemic stroke subclassification.Results Hypertension (70.83 ％),smoking (64.58 ％),hyperlipidemia (50.00 ％),and abnormal glucose metabolism (37.50％) were the major risk factors for acute IPI.Of the 48 acute IPI patients,38 (79.17％) manifestated as hemiplegia and 15 (31.25％) manifestated as dizziness,33 (68.75％) were diagnosed as paramedian pontine infarction,a most common location of IPI,16 (33.33％) were diagnosed as large artery occlusion,a major subtype of IPI,according to the Kumral ischemic stroke subclassification,17 (35.42％) were diagnosed as intracranial and extracranial large artery atherosclerosis according to the CISS (P=0.830).Conclusion IPI is mainly manifested as paramedian pontine infarction.Large artery occlusion according to the Kumral ischemic stroke subclassification and intracranial and extracranial large artery atherosclerosis according to the CISS are the major subtypes of IPI.IPI is diagnosed when a large part of brainstem is involved.