Patient-controlled analgesia after coronary artery bypass grafting
Analgesia following any thoracic surgery is important to reduce the risk of pulmonary and cardiovascular complications. Research shows that patients with higher pain scores have significantly higher levels of atelectasis (failure of the lungs to expand properly), cardiac ischemia and arrhythmia (Tsang and Brush, 1999; Watt-Watson and Stevens, 1998; Gravlee and Rauck, 1993), so optimal analgesia is essential.
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