Is left ventricular decompression necessary during coronary arter surgery?

The use of the "no-vent technique" was studied prospectively in 91 consecutive patients undergoing coronary artery surgery. Analysis of the results indicates that left ventricular distension will not occur if cardioplegic arrest is effected, if the venous line is positioned in the right atrium and if left-sided pressures are monitored. The no-vent technique has shortened the operating time, simplified the pump layout and eliminated the hazards associated with venting.