Abstract
BackgroundHand knob stroke is a rare clinical disorder frequently misdiagnosed as peripheral neuropathy. The purpose of this study is to recognize this particular type of stroke by analyzing clinical features, etiology, and prognosis.MethodsWe enrolled 19 patients with acute hand knob stroke in the Department of Neurology of the Beijing Geriatric Hospital from January 2018 to January 2022, and the clinical and imaging data of the patients during hospitalization and follow-up were collected and summarized.ResultsAcute hand knob stroke accounted for 0.9% of all acute stroke, and ischemic stroke (17 cases, 89.5%) was more than hemorrhagic stroke (2 cases, 10.5%). All patients presented sudden contralateral hand paresis, 12 (63.2%) of them had only isolated hand paralysis, and the location of the lesion corresponded to different finger weakness. The cause of hand knob hemorrhage was hypertension, while the causes of hand knob infarction were mainly small-vessel occlusion (SVO) (35.3%) and large-artery atherosclerosis (LAA) (35.3%), and the rare causes include carotid artery dissection and carotid body tumor. After a median follow-up 13.5 months, the prognosis of 94.7% patients was good, and one patient (5.3%) had recurrent stroke.ConclusionsHand knob stroke is a rare stroke with a good prognosis and a low stroke recurrence rate. Ischemic stroke is the predominant type and the main clinical manifestation is hand paresis. The cause of hand knob hemorrhage is hypertensive, while SVO and LAA are the main causes of hand knob infarction, but there are some rare etiologies.
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