 Following successful cardioplegic arrest, a period of low flow perfusion was started and a 10-French catheter was inserted into the right atrial appendage substituting the 18-French Polystan venous cannula. 
Following successful cardioplegic arrest , a period of low flow perfusion was started and a 10 - French catheter was inserted into the right atrial appendage substituting the 18 - French Polystan venous cannula .