Reversible cerebral vasoconstriction syndrome following red blood cells transfusion: a case series of 7 patients
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RESEARCH
Open Access
Reversible cerebral vasoconstriction syndrome following red blood cells transfusion: a case series of 7 patients Hui Liang1, Ziqi Xu1, Zhijun Zheng2, Haiyan Lou3 and Wei Yue4*
Abstract Background: Reversible cerebral vasoconstriction syndrome (RCVS) is an infrequent disease characterized by severe headaches with or without focal neurological deficits or seizures and a reversible vasoconstriction of cerebral arteries. The Orpha number for RCVS is ORPHA284388. However, RCVS triggered by blood transfusion is rare. Here we provided the clinical, neuroimaging and outcome data of patients diagnosed with RCVS resulting from red blood cells transfusion. Methods: We retrospectively identified 7 patients presenting with RCVS after red blood cells transfusion from January 2010 to May 2014. The information on clinical features, neuroimaging and outcome were collected and analyzed. Results: All 7 patients were Chinese women, with a mean age of 42 years (38–46). All the patients had severe anemia (Hb level < 6 g/dl) caused by primary menorrhagia due to uterine myoma (n = 5) or end-stage renal disease (n = 2) and severe anemia persisted for a average period of 4 months (2–6). Each patient received packed red blood cells transfusion (average: 1580 ml) over a period of 2–5 days. Blood transfusion increased the hemoglobin level by at least 4.5 g/dL from baseline. The neurological symptoms appeared a mean of 6.3 days (2–13) after the last blood transfusion. Headache was the most frequent symptom and seizure, transient or persistent neurological disorders were observed. Neuroimaging showed cortical subarachnoid hemorrhage (n = 2), focal intracerebral hemorrhage (n = 2), localized brain edema (n = 3), cerebral infarction (n = 1), and posterior reversible encephalopathy syndrome (n = 2). Cerebral vasoconstrictions were demonstrated by magnetic resonance angiography or cerebral angiography. Arterial constriction reversed in all patients within 1 to 3 months of follow-up after disease onset and no relapse was observed up to a mean of 17.1 ± 4.8 months of follow-up. Conclusions: RCVS is a rare complication as a result of blood transfusion in patients with chronic severe anemia and should be considered in patients who show severe headache or neurologic deficits after transfusion. Keywords: Reversible cerebral vasoconstriction syndrome, Blood transfusion, Chronic anemia
Background Reversible cerebral vasoconstriction syndrome (RCVS) is an infrequent disorder characterized by severe headaches with or without focal neurological deficits or seizures and a reversible segmental and multifocal vasoconstriction of cerebral arteries [1]. The most common clinical feature of RCVS is severe acute headache, often * Correspondence: [email protected] 4 Department of Neurology, Tianjin Huanhu Hospital, qixiangtai road 122, 300060 Tianjin, China Full list of author information is available at the end of the article
presenting as a thunderclap headache [2,3]. The major complication of RCVS is ischemic or hemorrhagic stroke, which may
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