The 9th SNSS Annual Meeting and The 10th SNSS Congress, Belgrade, Sırbistan, 30 Ekim - 03 Kasım 2023, (Yayınlanmadı)
Surgical approach to brainstem
cavernomas.
Usseli
Mİ, Çevik O, Güdük M, Bozkurt B, Özduman K, Pamir MN.
Acıbadem
Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery,
İstanbul, Turkey.
Background: Cavernous
malformations are vascular malformations with an incidence of 0,5% in general
population, comprimising 5-10% of all intracranial vascular malformations.
Brainstem cavernomas have a prevelance of 4-35% among all other intracranial cavernous
malformations. Brainstem cavernomas have distinct place among other
intracranial cavernous malformations due to peculiar location and potential
devastating events. Today, some standard surgical routes, entry zones and
microsurgical techniques are known for a relatively safe operation in the brain
stem. Our surgical experience and approach routes to brain stem cavernomas will
be shared in this presentation.
Methods: This
is a retrospective review from prospectively collected database of our clinic
practice for last 37 years. Patient charts, cranial MRIs, pathology reports,
and outpatient notes were evaluated.
Results: 55
patients with brainstem cavernous malformation were operated in our clinic in
the last 37 years. Of these 55 patients, 26 (47%) were women and 29 (53%) were
men and the mean age was 34 years (range: 18-70 years). Specfic cavernoma
locations were pineal region (3,6%), thalamus (12,7%), mesencephalon (5,5%),
pons (65,5%), and medulla oblongata (12,7%). Occipital interhemispheric,
interhemispheric transcallosal, paramedian supracerebellar,
cranioorbitozygomatic, median suboccipital, and paramedian retrosigmoid
suboccipital routes were used respectively for the approach. Mortality rate was 0%. Better or the same
clinical/neurological status could be achieved in 83,6% of the patients in the
long term follow up, which is consistent with the literature.
Conclusion: Despite
demanding surgical skills for surgical approch to brainstem cavernomas, surgery
could be accomplished safely and effectively in selected cases with appropriate
indications. The choice of the surgical route is extremely important for a
successful surgical practice in the treatment of these pathologies.