Abstract
To evaluate postoperative outcomes in patients with syringomyelia following arachnopathy at the craniovertebral level. A retrospective analysis included 27 patients with syringomyelia and arachnopathy within the occipital cistern for the period from 2013 to 2018. Eight patients (29.6%) underwent primary surgery. In this group, 2 patients had arachnopathy following post-traumatic subarachnoid hemorrhage, 1 - after non-traumatic subarachnoid hemorrhage in posterior cranial fossa, 2 - after bacterial meningitis, 3 - the cause was unclear. Nineteenth patients underwent redo surgery after previous procedures on posterior cranial fossa (tumor resection - 3 patients, suboccipital decompression for Chiari malformation - 16 cases). High-resolution MRI with special protocols for analysis of CSF circulation and mobility of brain structures was used to diagnose arachnopathy (phase contrast ECG-synchronized MRI, TrueFISP). Surgeries were aimed at mobilization of cerebellar tonsils and spinal cord and restoration of CSF circulation at the craniovertebral level. One year later, 13 (48.1%) patients noted improvement in their condition, 8 (29.6%) patients - clinical stabilization. In most cases, stabilization or improvement of sensory and coordination disorders. Syringomyelia symptoms progressed in 6 (22.2%) patients. Mean preoperative mJOA score was 11.86±1.24, in a year after surgery - 14.17±1.19. According to MRI data after 1 year, syringomyelia disappeared in 2 patients (7.4%), reduced in 13 (48.1%) cases, remained the same in 9 (33.3%) cases and deteriorated in 3 (11.1%) patients. Vaquero index reduced from 45.5% to 21.6 within a year after surgery. Early postoperative complications occurred in 3 (11.1%) patients: 1 (3.7%) had hydrocephalus and 2 (7.4%) had aseptic meningitis. Modern diagnostic and surgical methods for syringomyelia ensure favorable outcomes in 77.7% of cases.
Published Version
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