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The time of presentation of wound infection after cardiac surgery
J C Hall1, J L Hall, M G Edwards
1University Department of Surgery, Royal Perth Hospital, Western Australia.
Insights
Many cardiac surgery wound infections appear late, often after hospital discharge. Careful patient follow-up for six weeks post-surgery is crucial for reliable infection detection.
Area of Science:
- Cardiology
- Infectious Diseases
- Surgical Outcomes
Background:
- Wound infections following cardiac surgery frequently present late.
- The timing of wound infection presentation impacts its utility as a clinical indicator.
Purpose of the Study:
- To analyze the timing of wound infection presentation after cardiac surgery.
- To identify factors associated with late wound infection presentation.
Main Methods:
- Retrospective analysis of a database of 1000 cardiac surgery patients.
- Data collection included patient characteristics, surgery type, and wound infection presentation time.
Main Results:
- Overall wound infection incidence was 5.9%.
- Only 36% of infections presented during hospitalization.
- Diabetic patients showed a significantly higher likelihood of late wound infection presentation (median >17 days).
Conclusions:
- Cardiac surgery wound infections often present late, beyond the typical hospitalization period.
- Diabetics are at increased risk for delayed wound infections.
- Extended post-operative surveillance (6 weeks) is necessary for reliable wound infection assessment in cardiac surgery patients.
Abstract:
Clinical experience indicates that many wound infections present relatively late after cardiac surgery. Hence, timing may be an important issue in using this outcome as a clinical indicator. A database of 1000 patients who underwent cardiac surgery was accessed to ascertain baseline characteristics, the type of surgery, and the time of presentation of wound infections. The overall incidence of wound infection was 5.9% (59/1000). Only 36% (21/59) of the wound infections presented while the patient was in hospital. Diabetics were more likely to have a late presentation of a wound infection (the median time of presentation of wound infections (more than 17 days), i.e. 10/29 (33.4%) versus 98/971 (10.1%), Fisher's exact test P < 0.01). Wound infection can only be regarded as a reliable clinical indicator after cardiac surgery if patients are reviewed with care for 6 weeks after surgery.