Low cerebrospinal fluid pressure syndromes.

Area of Science:

• Neurology
• Radiology
• Neurosurgery

Background:

• Pachymeningeal gadolinium enhancement in low-pressure headaches was first reported only 12 years ago.
• Magnetic Resonance Imaging (MRI) has profoundly impacted the diagnosis and understanding of spontaneous intracranial hypotension (SIH).
• The clinical and imaging spectrum of SIH is now recognized as much broader, leading to increased diagnoses.

Purpose of the Study:

• To review the significant advancements in understanding spontaneous intracranial hypotension (SIH) over the past decade.
• To highlight the role of MRI in diagnosing SIH and associated cerebrospinal fluid (CSF) dynamics.
• To discuss the evolving concepts and novel observations in the field of SIH.

Main Methods:

• Literature review of studies on spontaneous intracranial hypotension and pachymeningeal gadolinium enhancement.
• Analysis of the impact of MRI on the diagnosis and characterization of SIH.
• Discussion of cerebrospinal fluid (CSF) dynamics in the context of low-pressure headaches.

Main Results:

• MRI has dramatically increased the recognition and diagnosis of SIH.
• A wider spectrum of clinical presentations and imaging findings for SIH is now understood.
• Significant progress has been made in comprehending the disorder and its associated CSF dynamics.

Conclusions:

• The past decade has seen remarkable progress in the understanding of spontaneous intracranial hypotension.
• MRI has become an indispensable tool for diagnosing and managing SIH.
• Research continues to challenge older concepts and reveal new insights into SIH and CSF dynamics.