“…The incidence of SWI in tracheostomy cases after cardiac surgery is larger than the general cardiac surgical population, which has been reported to range from 0.7% to 3.2%. [23][24][25] The increased incidence of SWI may be partially explained by several other risk factors present in postoperative tracheostomy cases. For example, in this meta-analysis of more than 10,000 patients, there was a high incidence of diabetic patients, elderly patients, patients with chronic obstructive lung disease, and patients undergoing reoperative surgery.…”