Recent experience with major sternal wound complications
T L Demmy1, S B Park, G A Liebler
1Division of Thoracic Surgery, Allegheny General Hospital, Pittsburgh, PA 15212.
Abstract:
During a recent 1-year period, 31 patients sustained a major sternal wound infection and sternal dehiscence developed in 6 patients. Multiple potential risk factors were tabulated in these patients and in a control group selected from 1,521 patients undergoing sternotomy during the same time period. The overall infection rate was 2.1%, and the mortality rate in the patients with sternal infection or dehiscence was 16.2%. Chronic obstructive pulmonary disease, prolonged intensive care unit stay, respiratory failure, connective tissue disease, and male sex were significantly higher in the group with sternal infection or dehiscence (p less than 0.05). Advanced age and low cardiac output episodes were more frequent in this group, but only approached statistical significance. Although several risk factors may have been interrelated, male sex and the presence of pulmonary disease were statistically independent predictors of sternal wound infection. Risk factors may be helpful in identifying high-risk patients for additional prophylactic measures.
Insights
Male sex and pulmonary disease independently predict sternal wound infections after cardiac surgery. Identifying these risk factors helps target prophylactic measures to reduce infection rates and improve patient outcomes.
Area of Science:
- Cardiology
- Thoracic Surgery
- Infectious Disease
Background:
- Sternal wound infection and dehiscence are serious complications following sternotomy.
- These complications are associated with significant morbidity and mortality.
Purpose of the Study:
- To identify independent risk factors for major sternal wound infection and dehiscence after sternotomy.
- To inform targeted prophylactic strategies for high-risk patients.
Main Methods:
- Retrospective case-control study analyzing 31 patients with sternal wound infection/dehiscence and a control group of 1,521 patients.
- Data collected included patient demographics, comorbidities, and perioperative variables.
- Statistical analysis identified significant predictors of sternal complications.
Main Results:
- The overall sternal infection rate was 2.1%, with a 16.2% mortality rate in affected patients.
- Independent predictors of sternal wound infection were male sex and pulmonary disease (e.g., chronic obstructive pulmonary disease).
- Other factors like prolonged ICU stay, respiratory failure, and connective tissue disease were also associated with higher infection rates.
Conclusions:
- Male sex and pulmonary disease are significant, independent risk factors for sternal wound infection post-sternotomy.
- Identifying patients with these risk factors is crucial for implementing enhanced prophylactic measures.
- Further research may explore the interplay of various risk factors to optimize patient care.
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