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With the view again changed to looking from the back a 1/8th inch Redivac has been placed in the extrapleural tunnel. It can be brought out through the thoracotomy or through a separate stab incision and connected to a Luer lock. An infusion of Chirocaine 0.5% is then run at 5mls per hour. It usually remains in place till the drains are removed. It can be supplemented by the use of a narcotic PCA (patient controlled analgesia) system.