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Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

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In pharmacokinetics, the elimination rate of a drug following a capacity-limited model is primarily controlled by two parameters: Vmax and KM. These parameters are crucial in how the drug behaves inside the body after administration.
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Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
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Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices01:28

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Updated: Feb 16, 2026

Non-restraining EEG Radiotelemetry: Epidural and Deep Intracerebral Stereotaxic EEG Electrode Placement
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Pneumocephalus after Epidural Injection.

Jerel Chacko1, Kelly Levis1, Barry Hahn1

  • 1Department of Emergency Medicine, Staten Island University Hospital, Staten Island, New York.

The Journal of Emergency Medicine
|January 4, 2018
PubMed
Summary
This summary is machine-generated.

Pneumocephalus, or air in the head, is a rare complication of epidural injections. This case highlights the importance of considering this serious condition in patients with headaches after epidural anesthesia.

Keywords:
epiduralpneumocephalusprocedural complications

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Area of Science:

  • Neurology
  • Radiology
  • Anesthesiology

Background:

  • Pneumocephalus, characterized by intracranial air, typically follows trauma or surgery.
  • Epidural injections are routine in obstetrics and pain management, with complications like hemorrhage, CSF leak, and infection being uncommon.
  • Pneumocephalus is a rare complication of epidural anesthesia, with limited case reports.

Observation:

  • A 34-year-old woman presented with a generalized headache six days post-vaginal delivery.
  • The patient had received an epidural injection during the delivery, which was otherwise unremarkable.
  • A noncontrast head CT scan confirmed pneumocephalus attributed to the epidural injection.

Findings:

  • The case report details a rare instance of pneumocephalus.
  • The diagnosis was confirmed via noncontrast computed tomography.
  • The pneumocephalus was a direct consequence of the epidural injection procedure.

Implications:

  • Emergency physicians must recognize pneumocephalus as a potential complication of epidural procedures.
  • Maintaining awareness of this rare but serious condition is crucial for accurate differential diagnosis.
  • Prompt identification and management are essential to mitigate potential patient morbidity.