[Spinal Cerebrospinal Fluid Leak: Current Concepts and Management Policies]

Area of Science:

• Neurology
• Radiology
• Neurosurgery

Background:

• Spinal cerebrospinal fluid (CSF) leaks encompass a wider range of clinical presentations than previously understood.
• Classical spontaneous intracranial hypotension (SIH) is now recognized alongside conditions like whiplash-associated disorder (WAD) and pediatric orthostatic dysregulation.
• A simplistic definition based solely on low CSF pressure is insufficient for accurate diagnosis.

Purpose of the Study:

• To provide an update on recent advancements in the diagnosis and treatment of spinal CSF leaks.
• To highlight evolving clinical presentations and diagnostic methodologies.
• To introduce a newly identified site of CSF leakage.

Main Methods:

• Utilizing fat-suppressed T2-weighted magnetic resonance imaging (MRI) for enhanced visualization.
• Employing continuous epidural fluid infusion as a diagnostic and therapeutic tool.
• Accurate localization of the leak site is crucial for effective treatment.

Main Results:

• Fat-suppressed T2-weighted MRI and epidural fluid infusion improve diagnostic accuracy.
• Targeted epidural blood patching (EBP) significantly enhances patient outcomes.
• A novel CSF leak site at the craniovertebral junction, specifically the dural entry point of the vertebral artery (VA), has been identified.

Conclusions:

• The diagnosis and treatment of spinal CSF leaks have evolved significantly.
• Comprehensive diagnostic approaches are necessary due to varied clinical presentations.
• Effective management involves precise leak localization and targeted interventions like EBP, with new leak sites being discovered.