Progressive quadriparesis in a young woman due to a spinal perimedullary arteriovenous fistula (PMAVF type IVa) successfully treated with endovascular therapy: A case report

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Názov: Progressive quadriparesis in a young woman due to a spinal perimedullary arteriovenous fistula (PMAVF type IVa) successfully treated with endovascular therapy: A case report
Autori: Fitri Damayanti, Ashari Bahar, Wijoyo Halim
Zdroj: Radiol Case Rep
Radiology Case Reports, Vol 20, Iss 9, Pp 4168-4174 (2025)
Informácie o vydavateľovi: Elsevier BV, 2025.
Rok vydania: 2025
Predmety: Medical physics. Medical radiology. Nuclear medicine, Transarterial embolization, Myelopathy, Case report, R895-920, Peri-medullary arteriovenous fistula, Case Report, Neurointervention
Popis: A perimedullary arteriovenous fistula (PMAVF) is a rare spinal vascular malformation that can lead to progressive neurologic deficits. We report a case of a 23-year-old woman presenting with progressive quadriparesis over 6 months. Initial spinal MRI revealed serpiginous flow voids from the cervical to the lumbar region, indicating abnormal vessels. Subsequent spinal angiography confirmed a PMAVF type IVa arising from the anterior radiculomedullary artery at the tenth thoracal (T10) level, shunting directly into a dilated perimedullary venous system. Transarterial embolization using ethylene-vinyl alcohol copolymer (Onyx) successfully occluded the fistula without compromising normal arterial flow. The patient showed marked neurologic recovery, achieving near-complete motor improvement by the seventh day postprocedure. PMAVF is classified as a type IV spinal vascular malformation and may cause severe neurologic symptoms due to venous hypertension, congestion, or hemorrhage. Early diagnosis is crucial, as endovascular embolization offers a minimally invasive treatment option with a favorable safety profile. This case illustrates the importance of timely recognition and intervention in PMAVF, underscoring the potential for significant functional improvement following endovascular therapy.
Druh dokumentu: Article
Other literature type
Jazyk: English
ISSN: 1930-0433
DOI: 10.1016/j.radcr.2025.05.027
Prístupová URL adresa: https://doaj.org/article/f7fbf8a08cb34781b7c5e148b1d7c3eb
Rights: CC BY
Prístupové číslo: edsair.doi.dedup.....cd58dba8431b5abf6ac815b3885eb9c8
Databáza: OpenAIRE
Popis
Abstrakt:A perimedullary arteriovenous fistula (PMAVF) is a rare spinal vascular malformation that can lead to progressive neurologic deficits. We report a case of a 23-year-old woman presenting with progressive quadriparesis over 6 months. Initial spinal MRI revealed serpiginous flow voids from the cervical to the lumbar region, indicating abnormal vessels. Subsequent spinal angiography confirmed a PMAVF type IVa arising from the anterior radiculomedullary artery at the tenth thoracal (T10) level, shunting directly into a dilated perimedullary venous system. Transarterial embolization using ethylene-vinyl alcohol copolymer (Onyx) successfully occluded the fistula without compromising normal arterial flow. The patient showed marked neurologic recovery, achieving near-complete motor improvement by the seventh day postprocedure. PMAVF is classified as a type IV spinal vascular malformation and may cause severe neurologic symptoms due to venous hypertension, congestion, or hemorrhage. Early diagnosis is crucial, as endovascular embolization offers a minimally invasive treatment option with a favorable safety profile. This case illustrates the importance of timely recognition and intervention in PMAVF, underscoring the potential for significant functional improvement following endovascular therapy.
ISSN:19300433
DOI:10.1016/j.radcr.2025.05.027