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Acetylcholinesterase--a specific marker for cerebrospinal fluid.

¹Sir Humphry Davy Department of Anaesthesia, Bristol Road Infirmary.

|April 1, 1988

Summary

Clear fluid leakage after epidural analgesia in a pre-eclamptic patient was investigated. Testing confirmed the fluid was not cerebrospinal fluid, ruling out a dural puncture complication.

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Area of Science:

Obstetrics and Gynecology
Neurology
Clinical Chemistry

Background:

Pre-eclampsia is a serious condition characterized by high blood pressure during pregnancy.
Lumbar epidural analgesia is commonly used for pain management during labor.
Complications such as dural puncture can occur during epidural procedures.

Observation:

A patient with pre-eclampsia experienced clear fluid leakage from the epidural puncture site for four days post-procedure.
The leaked fluid was analyzed for specific biochemical markers to determine its origin.

Findings:

Protein electrophoresis was used to analyze cholinesterase enzymes in the leaked fluid.
The specific form of acetylcholinesterase, indicative of cerebrospinal fluid, was absent in the leaked fluid.
Sensitivity testing confirmed the diagnostic accuracy of the acetylcholinesterase assay.

Implications:

This finding helps differentiate between wound leakage and potential cerebrospinal fluid leakage after epidural procedures.
Accurate diagnosis is crucial for appropriate patient management and preventing complications.
The study validates the use of acetylcholinesterase testing in diagnosing cerebrospinal fluid leaks.

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