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Ultrasound-determined landmarks decrease pressure pain at epidural insertion site in immediate post-partum period.

Denise Wilkes1, Caroline Martinello2, Felipe A Medeiros2

  • 1Department of Anesthesiology, The University of Texas Medical Branch, Galveston, TX, USA - dwilkes@utmb.edu.

Minerva Anestesiologica
|April 13, 2017
PubMed
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This summary is machine-generated.

Ultrasound-guided epidural placement significantly reduced post-procedure pain sensitivity at the insertion site. This technique minimizes discomfort compared to traditional palpation methods, potentially improving the laboring patient experience.

Area of Science:

  • Anesthesiology
  • Obstetrics
  • Pain Management

Background:

  • Postpartum back pain is a common concern for women after childbirth.
  • Previous studies show similar chronic back pain rates in women with and without epidurals.
  • Quantitative assessment of epidural insertion site pain using pressure pain threshold (PPT) has been lacking.

Purpose of the Study:

  • To determine the effect of ultrasound-based landmarks on postpartum pressure pain threshold (PPT) at the epidural insertion site.
  • To compare pain sensitivity between ultrasound-guided and palpation-guided epidural placement.

Main Methods:

  • Randomized controlled trial comparing ultrasound guidance (US) versus palpation (sham) for epidural placement.
  • A non-randomized control group (no epidural) was included for comparison.

Related Experiment Videos

  • Pressure pain threshold (PPT) was measured using an algometer at intervertebral spaces before and after epidural insertion.

    • Main Results:

    • Epidural placement significantly decreased PPT in both the US (68%) and sham (79%) groups, and less in the control group (21%).
    • The US group experienced decreased PPT only at the insertion site.
    • The sham group showed decreased PPT at the insertion site and adjacent levels.

    Conclusions:

    • Ultrasound-guided epidural placement improves procedural accuracy.
    • This technique minimizes the area of decreased pain sensitivity around the epidural insertion site.
    • Ultrasound guidance offers a potential advantage in reducing localized postpartum pain.