European Journal of Cardio-Thoracic Surgery, Vol 11, 189-190, Copyright © 1997 by European Association for Cardio-thoracic Surgery
The de-airing clamp in cardiac surgery
M Bugge, V Lepore and A Dahlin
Department of Cardiovascular Surgery, Sahlgrenska Hospital, Gothenburg University, Sweden.
De-airing of the heart in open heart surgery is a necessary routine. Most
of the air is evacuated from the heart before the aortic cross clamp is
removed, but the de-airing may be continued even after declamping. One way
to continue de-airing is to partially clamp the ascending aorta, proximally
to the aortic cannula, in order to create a pocket for trapping residual
air coming from the left ventricle. This paper describes a clamp specially
designed and developed for this purpose. It has been used in our center
since 1990 and our experience is reported. The clamp has been used on 250
patients and in 50% ultrasonography has been used to examine the heart
being free from air bubbles within 20 min from releasing the aortic cross
clamp.