Objective The true incidence of perioperative coronavirus disease 2019 (COVID-19) has not been well elucidated in neurosurgical studies. We reviewed the effects of the pandemic on the neurosurgical case volume to study the incidence of COVID-19 in patients undergoing these procedures during the perioperative period and compared the characteristics and outcomes of this group to those of patients without COVID-19. Methods The neurosurgical and neurointerventional procedures at 2 tertiary care centers during the pandemic were reviewed. The case volume, type, and acuity were compared to those during the same period in 2019. The perioperative COVID-19 tests and results were evaluated to obtain the incidence. The baseline characteristics, including a modified Medically Necessary Time Sensitive (mMeNTS) score, and outcome measures were compared between those with and without COVID-19. Results A total of 405 cases were reviewed, and a significant decrease was found in total spine, cervical spine, lumbar spine, and functional/pain cases. No significant differences were found in the number of cranial or neurointerventional cases. Of the 334 patients tested, 18 (5.4%) had tested positive for COVID-19. Five of these patients were diagnosed postoperatively. The mMeNTS score, complications, and case acuity were significantly different between the patients with and without COVID-19. Conclusion A small, but real, risk exists of perioperative COVID-19 in neurosurgical patients, and those patients have tended to have a greater complication rate. Use of the mMeNTS score might play a role in decision making for scheduling elective cases. Further studies are warranted to develop risk stratification and validate the incidence.

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Objective Coronavirus disease 2019 (COVID-19) continues to affect all aspects of healthcare delivery and neurosurgical practices are not immune to its impact. We aim to evaluate neurosurgical practice patterns as well as perioperative incidence of COVID-19 in neurosurgical patients and their outcomes. Methods A retrospective review of neurosurgical and neurointerventional cases at two tertiary centers during the first three months of the first peak of COVID-19 pandemic (March 8-June 8) as well as following three months (post-peak pandemic; June 9-September 9) was performed. Baseline characteristics, perioperative COVID-19 test results, modified Medically Necessary Time Sensitive (mMeNTS) score, and outcome measures were compared between COVID-19 positive and negative patients through bivariate and multivariate analysis. Results 652 neurosurgical and 217 neurointerventional cases were performed during post-peak pandemic period. Cervical spine, lumbar spine, functional/pain, cranioplasty, and cerebral angiogram cases were significantly increased in the post-pandemic period. There was a 2.9% (35/1,197) positivity rate for COVID-19 testing overall and 3.6% (13/363) positivity rate postoperatively. Age, mMeNTS score, complications, length of stay, case acuity, ASA status, length of stay, and disposition were significantly different between COVID-19 positive and negative patients. Conclusion A significant increase in elective case volume during the post-peak pandemic period is feasible with low and acceptable incidence of COVID-19 in neurosurgical patients. COVID-19 positive patients were younger, less likely to undergo elective procedures, had increased length of stay, had more complications, and were discharged to a location other than home. The mMeNTS score plays a role in decision making for scheduling elective cases.

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