A Simple and Effective Technique for Left Ventricular Deairing


  • Necmettin Yakut
  • Bilgin Emrecan
  • Engin Tuluko?lu
  • Ali Gürbüz




Objective. Despite careful deairing procedures, residual air has been found in the left ventricle. For this reason, we created a simple and effective left ventricular deairing technique.

Design. Forty patients with pure mitral valve disease were randomly divided into 2 groups. In group 1, deairing was done by filling the left atrium actively by a line coming from the aortic cannula line, and by venting from the antegrade cardioplegia line. In group 2, the air was removed by ventilating the lungs, and venting from the antegrade cardioplegia line, but not active filling of the left atrium. The patients were evaluated with transesophageal echocardiograpy during the procedure.

Results. According to the preoperative data, the groups were similar. After 3 minutes of deairing, 5 patients in group 2 had transesophageal echocardiographical air bubbles. In these patients, after 2 minutes, the air was removed by an active filling technique. None of the patients in group 1 had air bubbles.

Discussion. The technique described in this study seems to solve remaining air problems in the cardiac chambers. It can be applied easily, and it is safe and effective.


Bugge M, Lepore V, Dahlin A. 1997. The de-airing clamp in cardiac surgery. Eur J Cardiothorac Surg 11:189-90.nMilsom FP, Mitchell SJ. 1998. A dual-vent left heart deairing technique markedly reduces carotid artery microemboli. Ann Thorac Surg 66:785-91.nRescigno G, Riom H, Hallali P, Nottin R, Arnaud-Crozat E. 1995. Doppler analysis of the left venting line: an effective and simple technique to control heart de-airing. Cardiovasc Surg 3:65-9.nSvenarud P, Persson M, van der Linden J. 2004. Effect of CO2 insufflation on the number and behavior of air microemboli in open-heart surgery: a randomized clinical trial. Circulation 109:1127-32.nTingleff J, Joyce FS, Pettersson G. 1995. Intraoperative echocardiographic study of air embolism during cardiac operations. Ann Thorac Surg 60:673-7.nvan der Linden J, Casimir-Ahn H. 1991. When do cerebral emboli appear during open heart operations? A transcranial Doppler study. Ann Thorac Surg 51:237-41.nYilik L, Ozsoyler I, Yakut N, et al. 2004. Passive infusion: a simple delivery method for retrograde cardioplegia. Tex Heart Inst J 31:392-7.n



How to Cite

Yakut, N., Emrecan, B., Tuluko?lu, E., & Gürbüz, A. (2008). A Simple and Effective Technique for Left Ventricular Deairing. The Heart Surgery Forum, 11(1), E34-E36. https://doi.org/10.1532/HSF98.20071146