Venous air embolism (VAE) is a rare but potentially fatal complication of hysteroscopic myomectomy. The symptoms of VAE range from mild and clinically insignificant to complete cardiovascular collapse during surgery. Anesthesiologists and surgeons should be aware of the clinical characteristics and predisposing factors of this possible adverse event. This report analyzes 7 cases of VAE, which occurred at the University Hospitals Leuven, in patients undergoing hysteroscopic myomectomy from April 2009 to April 2011. Patient and myoma characteristics were compared to a control group of 27 patients who underwent uneventful hysteroscopic myomectomy during the same period of time. Analysis of baseline data including myoma size failed to identify predisposing factors. Clinical events in this series were classified according to their severity as minor (causing respiratory symptoms in 2 cases), moderate (accompanied by hemodynamic instability in 5 cases), or severe (requiring resuscitation in no cases). Case characteristics and therapeutic strategies in all cases were compared to reports from recent literature.
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