• Cezmi Çağrı Türk, Tolga Gediz, Umut Ogün Mutlucan, Yusuf Konak, Zeynep Nur Duman, and Tayfun Sügür.
• Department of Neurosurgery, University of Health Sciences, Istanbul, Turkey; Antalya Training and Research Hospital, Neurosurgery Clinic, Antalya, Turkey. Electronic address: drcezmiturk@gmail.com.
• World Neurosurg. 2023 Jul 1; 175: e1277e1282e1277-e1282.

BackgroundAlthough spinal surgery can offer pain relief and functional improvements in daily life, it is often associated with various perioperative complications. The incidence of cardiac complications associated with spinal surgery is relatively low. We evaluated frequency and causes for bradycardia incidents in posterior thorocolumbar spinal surgeries.MethodsWe retrospectively evaluated posterior thoracolumbar spinal surgeries between 2018-2022 for bradycardic events in our tertiary general hospital. Patients operated for degenerative changes or disk herniations are included, other cases for tumors, trauma, arteriovenous (AV) fistulae or previously operated are excluded.ResultsThe study reached 6 eligible patients (4 female and 2 male) aged between 45-75 years (mean: 63.3) among 550 patients operated between 2018-2022. The rate of bradycardia was 1.09%. Of these, 5 patients (lumbar discectomy: one; posterior stabilization:4) exhibited it following L2 and L3 root manipulation and one presented it following L4-5 discectomy. In each of these cases, bradycardia occurred during surgical manipulation and ceased upon removal of the insult. None of the cases exhibited accompanying hypotension. The patient's heart rates were seen to drop to lowest the of 30 beats/min, and all patients exhibited favorable outcomes and no postoperative cardiac complications over a mean follow-up period of 20 months (range: 10-40 months).ConclusionsThe current study examines the occurrence of unexpected bradycardia events associated with thoracolumbar spinal surgery during surgical handling of the dura mater. Awareness of such incidents among surgeons and anesthesiologists can help prevent catastrophic outcomes caused by adverse cardiac events.Copyright © 2023 Elsevier Inc. All rights reserved.

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