International journal of stroke : official journal of the International Stroke Society · 2026
Long-term outcomes and complications of cerebral venous sinus thrombosis: Findings from the Vellore CVT registry.
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Aaron Sanjith, Miraclin T Angel, Sulthana Mubasheera, Gowri Mahasampath, Asokan Premkumar, Bal Deepti, Ninan George Abraham, Selvaganesan Selvakumar, Jasper Anitha, Vanjare Harshad Arvind, Mannam Pavithra, Babu K B Santhosh, Keshava Nidugala Shyamkumar, Nair Shalini, Abhilash Kundavaram Paul P, Nair Aditya V, Mani Arun Mathai, Iqbal Ahmed Shaikh Atif, Benjamin Rohit Ninan, Mathew Vivek, At Prabhakar, Sivadasan Ajith
Аннотация
BACKGROUND: Although short-term outcomes are generally favorable in Cerebral venous sinus thrombosis (CVT), there are limited data on long-term complications and sequelae.
METHODS: This ambispective study is from the Vellore CVT Registry, the largest single-center CVT registry in the world. Two thousand four hundred and eighty-four adults with CVT enrolled between 2000 and 2024 were analyzed for functional status and complications with follow-up up to 12 years.
RESULTS: Of 2484 patients, 2380 (95.8%) survived the acute phase, with a mean follow-up of 3.2 years (range, 0-12 years). During follow-up, 41 patients (1.7%) died, the majority being within 1 year. Excellent functional outcomes (mRS ⩽ 2) were achieved by 92% of patients within 2 years. Complications were observed in 799 (33.5%) at follow-up, of whom 405 (50.6%) required rehospitalization. More than half (55.1%) of these complications occurred more than 2 years after the initial diagnosis of CVT. Common complications were seizures (9.6%) and headaches (7.7%). Bleeding events occurred in 3.9% of cases, predominantly due to anticoagulant use. Recurrent CVT developed in 1.3%, and other thrombotic events in 2.4%. Occurrences of malignancies (1%) and secondary dural arteriovenous fistulas (dAVFs) (0.6%) were significant complications that occurred after 2 years. Of the 108 pregnancies that occurred during follow-up, thrombotic events occurred in 2.7% in the absence of antithrombotic prophylaxis.
CONCLUSIONS: Most patients with CVT achieve long-term functional independence, yet one-third develop delayed complications. These findings underscore the importance of long-term surveillance in CVT survivors and give important insights into the natural history of CVT.
METHODS: This ambispective study is from the Vellore CVT Registry, the largest single-center CVT registry in the world. Two thousand four hundred and eighty-four adults with CVT enrolled between 2000 and 2024 were analyzed for functional status and complications with follow-up up to 12 years.
RESULTS: Of 2484 patients, 2380 (95.8%) survived the acute phase, with a mean follow-up of 3.2 years (range, 0-12 years). During follow-up, 41 patients (1.7%) died, the majority being within 1 year. Excellent functional outcomes (mRS ⩽ 2) were achieved by 92% of patients within 2 years. Complications were observed in 799 (33.5%) at follow-up, of whom 405 (50.6%) required rehospitalization. More than half (55.1%) of these complications occurred more than 2 years after the initial diagnosis of CVT. Common complications were seizures (9.6%) and headaches (7.7%). Bleeding events occurred in 3.9% of cases, predominantly due to anticoagulant use. Recurrent CVT developed in 1.3%, and other thrombotic events in 2.4%. Occurrences of malignancies (1%) and secondary dural arteriovenous fistulas (dAVFs) (0.6%) were significant complications that occurred after 2 years. Of the 108 pregnancies that occurred during follow-up, thrombotic events occurred in 2.7% in the absence of antithrombotic prophylaxis.
CONCLUSIONS: Most patients with CVT achieve long-term functional independence, yet one-third develop delayed complications. These findings underscore the importance of long-term surveillance in CVT survivors and give important insights into the natural history of CVT.