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Postoperative Cerebrospinal Fluid-Related Complications After Posterior Fossa and Posterolateral Skull Base
Travis J Atchley1, Evan G Gross2, Yasaman Alam1
1Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA.
World Neurosurgery
|December 17, 2023
Summary
A new risk score identifies patients at high risk for cerebrospinal fluid (CSF) leaks and pseudomeningocele after posterior fossa surgery. This tool aids in perioperative management and patient counseling.
Area of Science:
- Neurosurgery
- Surgical Complications
- Clinical Risk Assessment
Background:
- Postoperative pseudomeningocele (PMC) and cerebrospinal fluid (CSF) leak are frequent complications after posterior fossa and posterolateral skull base surgeries.
- Identifying at-risk patients is crucial for effective management and improved patient outcomes.
Purpose of the Study:
- To determine the incidence of CSF-related complications following specific neurosurgical procedures.
- To develop a predictive perioperative model and risk score for identifying high-risk patients.
Main Methods:
- Retrospective analysis of 450 patients undergoing posterior fossa/posterolateral skull base surgery (2016-2020).
- Logistic regression models were used to identify predictors of CSF complications.
- A clinical risk score (POCC score) was derived and internally validated using cross-validation and bootstrapping.
Main Results:
- A total of 115 patients (25.6%) experienced PMC and/or CSF leakage.
- Predictors associated with CSF complications included age >55 years, BMI >30 kg/m², and postoperative CSF diversion.
- The derived POCC score demonstrated good predictive performance (AUC 0.761) and high specificity (96.1%).
Conclusions:
- The developed POCC score is the first generalizable and predictive tool for identifying patients at risk of CSF-related complications.
- This risk score can enhance patient surveillance, guide surgical risk discussions, and inform perioperative management strategies.
