What are the risk factors for postoperative mediastinitis due to methicillin-resistant Staphylococcus aureus?
Risk factors for postoperative mediastinitis due to methicillin-resistant Staphylococcus aureus include extended duration of surgery, prolonged intubation time, reoperation for bleeding, use of systemic heparin, increased age, and the presence of comorbidities such as diabetes, obesity, and renal failure. Additionally, there is an increased risk of postoperative mediastinitis due to methicillin-resistant Staphylococcus aureus in patients undergoing valve surgery as opposed to coronary artery bypass grafting. 