Variation in postoperative outcomes of patients with intracranial tumors: insights from a prospective international cohort study during the COVID-19 pandemic

COVIDSurg-Cancer Neurosurgery Investigators, British Neurosurgical Trainee Research Collaborative, WFNS Young Neurosurgeons Committee, NIHR Global Health Research Group on Acquired Brain and Spine Injury, Michael T C Poon*, Rory J Piper, Nqobile Thango, D Fountain, Hani J Marcus, Laura Lippa, Franco Servadei, Ignatius N Esene, Christian F Freyschlag, Iuri S Neville, Gail Rosseau, Karl Schaller, Andreas K Demetriades, Faith C Robertson, Peter J Hutchinson, Stephen J PriceRonnie E Baticulon, James C Glasbey, Aneel Bhangu, Michael D Jenkinson, Angelos G Kolias*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Background
This study assessed the international variation in surgical neuro-oncology practice and 30-day outcomes of patients who had surgery for an intracranial tumor during the COVID-19 pandemic.

Methods
We prospectively included adults aged ≥18 years who underwent surgery for a malignant or benign intracranial tumor across 55 international hospitals from 26 countries. Each participating hospital recorded cases for 3 consecutive months from the start of the pandemic. We categorized patients’ location by World Bank income groups (high [HIC], upper-middle [UMIC], and low- and lower-middle [LLMIC]). Main outcomes were a change from routine management, SARS-CoV-2 infection, and 30-day mortality. We used a Bayesian multilevel logistic regression stratified by hospitals and adjusted for key confounders to estimate the association between income groups and mortality.

Results
Among 1016 patients, the number of patients in each income group was 765 (75.3%) in HIC, 142 (14.0%) in UMIC, and 109 (10.7%) in LLMIC. The management of 200 (19.8%) patients changed from usual care, most commonly delayed surgery. Within 30 days after surgery, 14 (1.4%) patients had a COVID-19 diagnosis and 39 (3.8%) patients died. In the multivariable model, LLMIC was associated with increased mortality (odds ratio 2.83, 95% credible interval 1.37–5.74) compared to HIC.

Conclusions
The first wave of the pandemic had a significant impact on surgical decision-making. While the incidence of SARS-CoV-2 infection within 30 days after surgery was low, there was a disparity in mortality between countries and this warrants further examination to identify any modifiable factors.
Original languageEnglish
JournalNeuro-Oncology
Early online date13 Apr 2023
DOIs
Publication statusE-pub ahead of print - 13 Apr 2023

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