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[Risk factors for mortality in abdominal aortic surgery]
D Eyraud1, M Bertrand, M H Fléron
1Département d'anesthésie-réanimation, hôpital Pitié-Salpêtrière, Paris, France.
Annales Francaises D'Anesthesie Et De Reanimation
|August 15, 2000
Summary
Angina pectoris and chronic obstructive bronchopulmonary disease (COPD) are key predictors of mortality after abdominal aortic surgery. Longer surgery duration also increases mortality risk, while blood loss is not a significant factor.
Area of Science:
- Cardiovascular Surgery
- Vascular Surgery
- Surgical Outcomes Research
Background:
- Abdominal aortic surgery carries significant mortality risks.
- Identifying predictive factors for mortality is crucial for patient management and risk stratification.
Purpose of the Study:
- To identify pre- and peroperative variables that predict mortality following abdominal aortic surgery.
Main Methods:
- A prospective study included 658 patients undergoing abdominal aortic surgery between 1993 and 1997.
- Preoperative variables included patient demographics, medical history, and medication use.
- Peroperative variables included type of aortic disease, surgery duration, blood loss, and laparotomy type.
Main Results:
- The overall mortality rate was 5% (33 patients).
- Independent predictors of mortality identified via multivariate analysis were angina pectoris (OR=5.47), chronic obstructive bronchopulmonary disease (COPD) (OR=2.27), and duration of surgery (OR=1.60).
- Age and blood loss were predictive only in univariate analysis.
Conclusions:
- Angina pectoris and COPD are significant independent preoperative predictors of mortality.
- Surgery duration is the sole independent peroperative predictor of mortality.
- Careful monitoring of blood loss did not identify it as a predictive factor.