TY - JOUR
T1 - Hemorrhage due to a pseudoaneurysm on a dural-pial anastomosis after decompression for Chiari malformation type I
T2 - case report
AU - Dahl, Rasmus Holmboe
AU - Kelsen, Jesper
AU - Hansen, Klaus
AU - Hauerberg, John
AU - Benndorf, Goetz
N1 - © 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.
PY - 2022/12
Y1 - 2022/12
N2 - While intracranial aneurysms rarely develop after neurosurgical procedures, delayed pseudoaneurysm formation after foramen magnum decompression (FMD) has never been reported. A 52-year-old woman presented with an atypical subarachnoid hemorrhage in the posterior fossa 12 years after a FMD for symptomatic Chiari malformation type I was performed. A pseudoaneurysm on a dural-pial anastomosis was identified as the bleeding source and successfully occluded by endovascular means with full clinical recovery of the patient. Injury to the distal posterior inferior cerebellar artery related to surgery and postoperative infection likely caused formation of a dural-pial anastomosis. Additionally, hemodynamic stress or dissection may have contributed to delayed pseudoaneurysm formation and rupture.
AB - While intracranial aneurysms rarely develop after neurosurgical procedures, delayed pseudoaneurysm formation after foramen magnum decompression (FMD) has never been reported. A 52-year-old woman presented with an atypical subarachnoid hemorrhage in the posterior fossa 12 years after a FMD for symptomatic Chiari malformation type I was performed. A pseudoaneurysm on a dural-pial anastomosis was identified as the bleeding source and successfully occluded by endovascular means with full clinical recovery of the patient. Injury to the distal posterior inferior cerebellar artery related to surgery and postoperative infection likely caused formation of a dural-pial anastomosis. Additionally, hemodynamic stress or dissection may have contributed to delayed pseudoaneurysm formation and rupture.
KW - Anastomosis, Surgical
KW - Aneurysm, False/diagnostic imaging
KW - Arnold-Chiari Malformation/complications
KW - Decompression, Surgical/adverse effects
KW - Female
KW - Foramen Magnum/surgery
KW - Humans
KW - Magnetic Resonance Imaging
KW - Middle Aged
KW - Subarachnoid Hemorrhage/diagnostic imaging
UR - http://www.scopus.com/inward/record.url?scp=85137592109&partnerID=8YFLogxK
U2 - 10.1007/s00701-022-05341-4
DO - 10.1007/s00701-022-05341-4
M3 - Journal article
C2 - 36063230
SN - 0001-6268
VL - 164
SP - 3215
EP - 3219
JO - Acta Neurochirurgica
JF - Acta Neurochirurgica
IS - 12
ER -