MINIMALLY INVASIVE CORONARY-BYPASS SURGERY - POSTOPERATIVE PAIN MANAGEMENT USING INTERMITTENT BUPIVACAINE INFILTRATION

Minimally invasive direct coronary artery bypass grafting (MIDCAB) is becoming a popular adjunct to standard cardiac bypass surgery in selec ted patients with accessible single or double vessel disease. However, the limited anterior thoracotomy used to access the heart involves tr auma to the muscle tissue during removal of the fourth costal cartilag e and a small piece of connected rib, perhaps leading to more severe p ostoperative pain compared with patients undergoing routine sternotomy . Intrathecal opioids can be used but have limited therapeutic duratio n and there is concern regarding anticoagulation. We present a case wh ere soft tissue catheters were placed into the depths of the surgical wounds and pain was diminished greatly by intermittent regular infiltr ation with bupivacaine.