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[Venous gas embolisms]

J M Appel1, J Bonde, J Madsen

  • 1Medicinsk Fysiologisk Institut, Københavns Universitet.

Ugeskrift for Laeger
|November 14, 1994
PubMed
Summary
This summary is machine-generated.

Venous gas embolism (VGE) risk is high during specific surgeries. Monitoring with capnography (ETCO2) and recognizing clinical signs are crucial for early VGE detection and management.

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Area of Science:

  • Anesthesiology
  • Surgical Safety
  • Critical Care Medicine

Context:

  • Surgical procedures in venous pressure below atmospheric conditions pose a risk of venous gas embolism (VGE).
  • Nitrous oxide (N2O) anesthesia should be avoided in high-risk VGE scenarios.
  • Effective patient monitoring is essential for detecting VGE during surgery.

Purpose:

  • To highlight the risks associated with venous gas embolism (VGE) during surgical procedures.
  • To recommend specific monitoring techniques and clinical signs for VGE detection.
  • To outline immediate management strategies for confirmed VGE cases.

Summary:

  • Venous gas embolism (VGE) can occur when surgical venous pressures are sub-atmospheric or insufflation gas pressure exceeds venous pressure.

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  • Recommended monitoring includes Doppler, echocardiography (ECHO), end-tidal carbon dioxide (ETCO2), and pulmonary artery pressure (PAP) measurements, with ETCO2 monitoring being highly advisable.
  • Clinical signs such as tachypnea, tachycardia, hypotension, arrhythmias, and "mill wheel" murmurs warrant attention. Management involves oxygen inhalation, aspiration via central venous line, and specific patient positioning (Durant's and Trendelenburg's, or anti-Trendelenburg's during cesarean section). Hyperbaric oxygen therapy is considered for arterial gas embolism.

    • Impact:

    • Improved patient safety through enhanced VGE risk awareness and monitoring protocols.
    • Timely diagnosis and intervention for VGE, potentially reducing morbidity and mortality.
    • Guidance for anesthesiologists and surgeons on managing a critical intraoperative complication.