• Sara Bortolani, Guido Stura, Giancarlo Ventilii, Liliana Vercelli, Enrica Rolle, Federica Ricci, Mauro Bergui, and Tiziana Mongini.
• Department of Neuroscience "Rita Levi Montalcini, University of Turin, Via Cherasco 15, 10126, Turin, Italy.
• Neuromuscul. Disord. 2019 Oct 1; 29 (10): 742-746.

AbstractSpinal deformities and surgical correction of scoliosis can make intrathecal delivery of nusinersen very challenging. We aim to evaluate the feasibility and safety of intrathecal administration of nusinersen either via interlaminar or transforaminal approach in a cohort of adult and adolescent patients with spinal muscular atrophy (SMA). Twelve patients were treated with nusinersen in our center under CT-guidance; after a CT scan of the lumbar column, we identified a safe virtual trajectory for the needle and defined patients to address to the transforaminal approach (seven patients) or the interlaminar approach (five patients). Out of 47 procedures, all injections but one were successful. There was one adverse event (post-lumbar puncture syndrome) in the interlaminar approach group (out of 20 procedures) and four adverse events in TFA group (out of 27 procedures) including one serious adverse event, a subarachnoid hemorrhage that required hospitalization. Transforaminal approach can be considered an effective option for nusinersen administration but potentially associated with serious complications, therefore it should be recommended in very selected patients.Copyright © 2019 Elsevier B.V. All rights reserved.

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