tetano
Editor, Senior Moderator
Clin Exp Vaccine Res
. 2022 May;11(2):217-221.
doi: 10.7774/cevr.2022.11.2.217. Epub 2022 May 31.
Thalamic hemi-chorea: a rare complication after receiving the adenoviral vector-based COVID-19 vaccine: a case report
Hamze Shahali[SUP] 1 [/SUP], Ramin Hamidi Farahani[SUP] 2 [/SUP], Ali Asgari[SUP] 2 [/SUP], Ebrahim Hazrati[SUP] 3 [/SUP]
Affiliations
Abstract
Lacunar strokes occur when a branch of a large cerebral artery is blocked. The thalamus is often affected, causing uncontrollable motions. A 72-year-old previously healthy man presented with involuntary motions in the right limbs, which were present at rest, and exacerbated during voluntary actions. He had received the first dose of the adenoviral vector-based coronavirus disease 2019 vaccine (ChAdOx1 nCoV-19) 9 days ago. Severe thrombocytopenia and elevated levels of lactate dehydrogenase, ferritin, C-reactive protein, and D-dimer were found, without any evidence of connective tissue disease. Electromyography demonstrated typical choreiform movements, and the brain magnetic resonance imaging indicated a small high signal lesion on the left side of the thalamus. Detection of the immunoglobulin G antibodies against platelet factor 4 in the blood, negative heparin-induced platelet activation (HIPA) test, and positive modified HIPA test confirmed the thalamic stroke due to the vaccine-induced prothrombotic immune thrombocytopenia (VIPIT). He was admitted to the intensive care unit and received nadroparin, sodium ozagrel, edaravone, methylprednisolone, and haloperidol. His hemi-chorea improved gradually over 2 weeks, and he was discharged after 21 days with rehabilitation advice. VIPIT due to the ChAdOx1 nCoV-19 is a novel immune-mediated response that needs clinicians' awareness and further investigations.
Keywords: COVID-19 vaccine; Case report; Hemi-chorea; Immunoglobulin G antibodies against platelet factor 4; Lacunar stroke; SARS-CoV-2; Thrombosis.
. 2022 May;11(2):217-221.
doi: 10.7774/cevr.2022.11.2.217. Epub 2022 May 31.
Thalamic hemi-chorea: a rare complication after receiving the adenoviral vector-based COVID-19 vaccine: a case report
Hamze Shahali[SUP] 1 [/SUP], Ramin Hamidi Farahani[SUP] 2 [/SUP], Ali Asgari[SUP] 2 [/SUP], Ebrahim Hazrati[SUP] 3 [/SUP]
Affiliations
- PMID: 35799877
- PMCID: PMC9200646
- DOI: 10.7774/cevr.2022.11.2.217
Abstract
Lacunar strokes occur when a branch of a large cerebral artery is blocked. The thalamus is often affected, causing uncontrollable motions. A 72-year-old previously healthy man presented with involuntary motions in the right limbs, which were present at rest, and exacerbated during voluntary actions. He had received the first dose of the adenoviral vector-based coronavirus disease 2019 vaccine (ChAdOx1 nCoV-19) 9 days ago. Severe thrombocytopenia and elevated levels of lactate dehydrogenase, ferritin, C-reactive protein, and D-dimer were found, without any evidence of connective tissue disease. Electromyography demonstrated typical choreiform movements, and the brain magnetic resonance imaging indicated a small high signal lesion on the left side of the thalamus. Detection of the immunoglobulin G antibodies against platelet factor 4 in the blood, negative heparin-induced platelet activation (HIPA) test, and positive modified HIPA test confirmed the thalamic stroke due to the vaccine-induced prothrombotic immune thrombocytopenia (VIPIT). He was admitted to the intensive care unit and received nadroparin, sodium ozagrel, edaravone, methylprednisolone, and haloperidol. His hemi-chorea improved gradually over 2 weeks, and he was discharged after 21 days with rehabilitation advice. VIPIT due to the ChAdOx1 nCoV-19 is a novel immune-mediated response that needs clinicians' awareness and further investigations.
Keywords: COVID-19 vaccine; Case report; Hemi-chorea; Immunoglobulin G antibodies against platelet factor 4; Lacunar stroke; SARS-CoV-2; Thrombosis.