L. Zhou , C. Chen , W. Gong , L. Shang , L. Liu , W. Duan , M. Zheng
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引用次数: 0
Abstract
Objectives
To develop and validate a risk stratification model for 60-day mortality in acute aortic dissection by integrating computed tomography angiography and echocardiographic findings, with particular emphasis on aortic branch vessel involvement and surgical timing outcomes.
Methods
This retrospective cohort study analyzed 1,464 acute aortic dissection patients (development cohort) and two validation cohorts (temporal: n=340; geographical: n=421) between 2007-2019. Risk factors were assessed through CT angiography and echocardiography. Multivariable logistic regression and LASSO analyses identified independent predictors of 60-day mortality. Model performance was evaluated using AUC-ROC analysis and calibration plots.
Results
The 60-day mortality rate was 14.3% (210/1,464 patients). Independent predictors included age (adjusted OR 1.28, 95% CI 1.06–1.54), Stanford Type A (adjusted OR 1.85, 95% CI 1.42–2.41), innominate artery involvement (adjusted OR 1.45, 95% CI 1.15–1.83), left atrial enlargement (adjusted OR 1.32, 95% CI 1.04–1.67), and elevated FDP (adjusted OR 1.35, 95% CI 1.01–1.80). Combined risk factors showed the highest mortality, particularly pericardial effusion plus aortic regurgitation (42.3% in Type A). Mortality increased with delayed intervention from 15.2% (≤6 hours) to 35.8% (>24 hours) in Type A dissections. The model demonstrated robust performance in the temporal (AUC 0.77) and geographical (AUC 0.78) validation cohorts.
Conclusions
Integration of imaging parameters with clinical factors provides reliable mortality prediction in acute aortic dissection. Upper aortic branch involvement and cardiac imaging markers are significant predictors of mortality. Early intervention, particularly within 6 hours, is associated with improved survival. This risk stratification model may guide clinical decision-making regarding intervention timing and treatment strategy selection.
期刊介绍:
Clinical Radiology is published by Elsevier on behalf of The Royal College of Radiologists. Clinical Radiology is an International Journal bringing you original research, editorials and review articles on all aspects of diagnostic imaging, including:
• Computed tomography
• Magnetic resonance imaging
• Ultrasonography
• Digital radiology
• Interventional radiology
• Radiography
• Nuclear medicine
Papers on radiological protection, quality assurance, audit in radiology and matters relating to radiological training and education are also included. In addition, each issue contains correspondence, book reviews and notices of forthcoming events.