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Incidence of venous air embolism during myomectomy: the effect of patient position

 Jiwon An  ;  Seo Kyung Shin  ;  Ja-Young Kwon  ;  Ki Jun Kim 
 Yonsei Medical Journal, Vol.54(1) : 209-214, 2013 
Journal Title
 Yonsei Medical Journal 
Issue Date
PURPOSE: Venous air embolism (VAE) is characterized by the entrainment of air or exogenous gases from broken venous vasculature into the central venous system. No study exists regarding the effect of patient positioning on the incidence of VAE during abdominal myomectomy. The purpose of this study was to assess the incidence and grade of VAE during abdominal myomectomy in the supine position in comparison to those in the head-up tilt position using transesophageal echocardiography. MATERIALS AND METHODS: In this study, 84 female patients of American Society of Anesthesiologist physical status I or II who were scheduled for myomectomy under general anesthesia were included. Patients were randomly divided into two groups: supine group and head-up tilt group. Transesophageal echocardiography images were videotaped throughout the surgery. The tapes were then reviewed for VAE grading. RESULTS: In the supine group, 10% of the patients showed no VAE. Moreover, 10% of the patients were classified as grade I VAE, while 50% were categorized as grade II, 22.5% as grade III, and 7.5% as grade IV. In the head-up tilt group, no VAE was detected in 43.2% of the patients. In addition, 18.2% of the patients were classified as grade I VAE, 31.8% as grade II, and 6.8% as grade III; no patients showed grade IV. VAE grade in the head-up tilt group was significantly lower than that in the supine group (p<0.001). CONCLUSION: The incidence and grade of VAE in the head-up tilt group were significantly lower than those in the supine group during abdominal myomectomy.
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1. College of Medicine (의과대학) > Dept. of Obstetrics and Gynecology (산부인과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
권자영(Kwon, Ja Young) ORCID logo https://orcid.org/0000-0003-3009-6325
김기준(Kim, Ki Jun) ORCID logo https://orcid.org/0000-0003-1950-7998
신서경(Shin, Seokyung) ORCID logo https://orcid.org/0000-0002-2641-0070
안지원(An, Ji Won)
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