 The chest tube had been removed and initially a blunt dissection was carried out through the old chest tube tract, but then it was necessary to enlarge it slightly in order to get the Thoracoport in place and this was done and as mentioned above we could not achieve the satisfactory visualization through this. 
The chest tube had been removed and initially a blunt dissection was carried out through the old chest tube tract , but then it was necessary to enlarge it slightly in order to get the Thoracoport in place and this was done and as mentioned above we could not achieve the satisfactory visualization through this .