Key result
Sitting position during neurosurgery is linked to a 25% rate of venous air embolism.
Why the study?
What is the incidence of venous air embolism detected by Doppler ultrasound and right atrial catheter aspiration during neurosurgical procedures in various patient positions?
Observational (n=518)
What is the incidence of venous air embolism detected by Doppler ultrasound and right atrial catheter aspiration during neurosurgical procedures in various patient positions?
Answers are grounded in this paper and cite their sources.
Doppler ultrasonic air bubble detection and right atrial catheter aspiration are critical for diagnosing and treating venous air embolism during neurosurgical procedures.
Venous air embolism during neurosurgical procedures (detected by Doppler Ultrasound and aspiration via a right atrial catheter) was noted in 100 of 400 patients in the sitting position, 5 of 60 patients in the lateral position, 7 of 48 patients in the supine position, and 1 of 10 individuals monitored in the prone position. We confirmed venous air embolism in many of these cases by using serial technetium-macroaggregated albumin lung scans. Gravitational gradients from the venous portal of entrance to the right side of the heart were as small as 5.0 cm, with aspiration of 200 ml of air occurring. Doppler ultrasonic air bubble detection and aspiration through a previously inserted right atrial catheter are critical factors in the diagnosis and treatment of this condition.
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Albin et al. (1978) conducted an observational in Venous air embolism during neurosurgical procedures (n=518). Surgical position (sitting, lateral, supine, prone) was evaluated on Venous air embolism. Venous air embolism during neurosurgical procedures occurred in 25% of patients in the sitting position, 8.3% in lateral, 14.6% in supine, and 10% in prone positions.
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