Outcome and Prognosis
The development of mediastinitis dramatically raises the chance of mortality and lengthens the hospital stay. One study showed that postoperatively, a patient's chance of dying doubled to 12% when mediastinitis developed compared with 6% for those without the condition. Some studies report death rates as high as 47%. Mediastinitis also raises the 2-year mortality rate from 2% to 8% following coronary bypass grafting. Patients with postoperative mediastinitis stay in the hospital 6-7 times longer than those without the condition, and total costs may triple.23
Future and Controversies
Fortunately, mediastinitis is fairly uncommon in relation to the hundreds of thousands of cardiac surgeries performed each year in the United States. However, when it occurs, the results are often devastating and the costs of care increase substantially.
Future directions for research should focus on prevention, including timely antibiotic administration, sterile technique, prophylactic measures such as topical bacitracin, and meticulous hemostasis. Focus should also include more accurate methods of diagnosis during the first 14 days after surgery, when CT scan findings are not reliable. However, the key to successful management remains early recognition and aggressive treatment, including sternal reopening and debridement.
Further research should also focus on the optimal timing and method of wound closure and the duration of antibiotic therapy required for optimal treatment.
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References
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Further Reading
Keywords
mediastinitis, cardiac surgery, heart transplant, surgical complication, operative complication, surgery, postoperative complications, esophageal perforation, postoperative infection, tracheobronchial perforation, progressive odontogenic infection, Ludwig angina, lung infection, chronic fibrosing mediastinitis, granulomatous infections, Staphylococcus aureus, S aureus, Staphylococcus epidermidis, S epidermidis, Candida, Histoplasma capsulatum, H capsulatum, Mycobacterium tuberculosis, M tuberculosis, gram-positive cocci, mediastinal disease, mediastinum disease, open heart surgery, open heart operations, open-heart surgery, open-heart operations
Follow-up: Mediastinitis