Key result
Thoracic aortic surgery linked to ~272% higher stroke risk after cardiac surgery.
Why the study?
Cerebrovascular accident is a multidimensional and ominous complication after cardiac surgery, prompting an evaluation of major demographic, clinical, and procedural risk factors.
What are the major demographic, clinical, and surgical risk factors for stroke after cardiac surgery?
Cohort (n=580,117)
Yes
What are the major demographic, clinical, and surgical risk factors for stroke after cardiac surgery?
In a large UK national cohort, specific clinical factors including insulin-treated diabetes, prior cerebrovascular events, and thoracic aortic surgery were identified as strong predictors of stroke following cardiac surgery, aiding in preoperative risk stratification.
Answers are grounded in this paper and cite their sources.
Informs preoperative risk assessment in cardiac surgery; leaves open whether modifying identified factors reduces stroke incidence.
Cerebrovascular accident is the most ominous complication observed after cardiac surgery, carrying an increased risk of morbidity and mortality. Analysis of the problem shows its multidimensional nature. In this study, we aimed to identify major determinants among classic variables, either demographic, clinical or type of surgical procedure, based on the analysis of a large dataset of 580,117 patients from the UK National Adult Cardiac Surgical Audit (NACSA). For this purpose, univariate and multivariate logistic regression models were utilized to determine associations between predictors and dependent variable (Stroke after cardiac surgery). Odds ratios (ORs) and 95% confidence intervals (CIs) were constructed for each independent variable. Statistical analysis allows us to confirm with greater certainty the predictive value of some variables such as age, gender, diabetes mellitus (diabetes treated with insulin OR = 1.37, 95%CI = 1.23-1.53), and systemic arterial hypertension (OR = 1.11, 95%CI = 1.05-1.16);, to emphasize the role of preoperative atrial fibrillation (OR = 1.10, 95%CI = 1.03-1.16) extracardiac arteriopathy (OR = 1.70, 95%CI = 1.58-1.82), and previous cerebral vascular accident (OR 1.71, 95%CI = 1.6-1.9), and to reappraise others like smoking status (crude OR = 1.00, 95%CI = 0.93-1.07 for current smokers) or BMI (OR = 0.98, 95%CI = 0.97-0.98). This could allow for better preoperative risk stratification. In addition, identifying those surgical procedures (for example thoracic aortic surgery associated with a crude OR of 3.72 and 95%CI = 3.53-3.93) burdened by a high risk of neurological complications may help broaden the field of preventive and protective techniques.
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Asta et al. (2024) conducted a cohort in Stroke after cardiac surgery (n=580,117). Thoracic aortic surgery, prior stroke, and extracardiac arteriopathy were identified as major risk factors for stroke after cardiac surgery.
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