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Air embolism during trans-sphenoidal pituitary operations
Neurosurgery
|January 1, 1978
Summary
Venous air embolism can occur during trans-sphenoidal pituitary surgery. Early Doppler diagnosis and prompt intervention are crucial for patient safety and preventing serious complications.
Area of Science:
- Neurosurgery
- Cardiovascular Monitoring
- Anesthesiology
Background:
- Trans-sphenoidal pituitary surgery is frequently performed in the semi-sitting position.
- Venous air embolism (VAE) is a potential complication during surgical procedures where a pressure gradient exists between the surgical site and the right heart.
Observation:
- Doppler ultrasonic monitoring identified venous air embolism in 3 of 31 patients undergoing trans-sphenoidal pituitary operations.
- Potential entry points for air include intrasellar venous connections, bone channels, subnasal vessels, and vascularized tumor tissue.
Findings:
- The study highlights the occurrence of VAE during these specific neurosurgical procedures.
- A case presentation details the clinical scenario and diagnosis of VAE.
Implications:
- Rapid diagnosis using Doppler ultrasound is essential for prompt management of VAE.
- Effective treatments include air aspiration, oxygen administration, Valsalva maneuver, wound irrigation, and hemostasis.
- Technetium-macroaggregated albumin (TEMAA) lung scans can aid in postoperative VAE verification.