Related Experiment Video
Updated: Jun 18, 2026
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
11.3K
Short- and Long-term survival prediction in patients with acute type A aortic dissection undergoing open surgery
Yusanjan Matniyaz1,2, Yuan-Xi Luo3, Yi Jiang3
1Department of Cardiac Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Number 321 Zhongshan Road, Nanjing, Jiangsu, 210008, China.
Journal of Cardiothoracic Surgery
|April 2, 2024
Summary
This study identifies key preoperative factors for predicting death risk in patients with acute type A aortic dissection (ATAAD). A new nomogram model improves the accuracy of postoperative mortality prediction for ATAAD surgical patients.
Area of Science:
- Cardiovascular Surgery
- Medical Informatics
- Aortic Disease Research
Background:
- Acute Type A aortic dissection (ATAAD) presents a high mortality risk despite surgical intervention.
- Current ATAAD surgical outcomes remain suboptimal, necessitating improved risk stratification.
- Identifying predictors of postoperative mortality is crucial for optimizing patient management.
Purpose of the Study:
- To determine the correlation between preoperative data and postoperative mortality in ATAAD patients.
- To develop and validate a predictive model for in-hospital death risk in ATAAD.
- To enhance clinical decision-making for ATAAD surgical candidates.
Main Methods:
- Logistic regression analysis of preoperative laboratory and imaging data from 384 ATAAD patients.
- Cox regression analysis to construct a survival prediction model.
- Development of a nomogram to visualize and apply the predictive model.
Main Results:
- Identified independent risk factors: Marfan syndrome, prior cardiac surgery/renal dialysis, direct bilirubin, serum phosphorus, D-dimer, WBC count, multiple ruptures, and age.
- A Cox regression-based nomogram model was successfully established.
- The model demonstrated strong discrimination and improved prediction of postoperative death.
Conclusions:
- A novel survival prediction model for ATAAD was developed using preoperative clinical features.
- The model offers enhanced accuracy and discriminatory power for predicting death risk.
- This tool can aid in risk assessment for ATAAD patients undergoing open surgery.
Related Concept Videos
01:15Aortic Regurgitation I: Introduction
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
01:25Aortic Regurgitation III: Medical Management
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
01:23Peripheral Artery Disease V: Postoperative Nursing Management
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
01:26Aneurysm III: Interprofessional Care
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
01:22Aneurysm IV: Nursing Management
Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...