Publications by authors named "K Lachapelle"
Objective: We performed an intention-to-treat analysis of initial cannulation strategy to assess the impact on perioperative outcomes in acute type A dissection using multicenter data.
Methods: All patients undergoing surgical repair of acute type A dissection from a multicenter national registry of 9 high-volume aortic centers were analyzed. Cannulation strategies included in the analysis were axillary, femoral, direct aortic, and innominate.
Background: Traditional methods of risk assessment for thoracic aortic aneurysm (TAA) based on aneurysm size alone have been called into question as being unreliable in predicting complications. Biomechanical function of aortic tissue may be a better predictor of risk, but it is difficult to determine in vivo.
Objectives: This study investigates using a machine learning (ML) model as a correlative measure of energy loss, a measure of TAA biomechanical function.
Objectives: Traditional criterion for intervention on an asymptomatic ascending aortic aneurysm has been a maximal aortic diameter of 5.5 cm or more. The 2022 American College of Cardiology/American Heart Association aortic guidelines adopted cross-sectional aortic area/height ratio, aortic size index, and aortic height index as alternate parameters for surgical intervention.
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- The study compared outcomes of patients undergoing surgical aortic valve replacement (SAVR) based on their referral process: those evaluated by a heart team (HT) and those referred directly to surgery.
- A total of 288 patients were analyzed, showing that those referred to the heart team (both historical and contemporary) were generally younger and had better surgical risk scores compared to those not referred to the HT.
- The findings indicated that patients evaluated by the heart team before surgery had significantly lower complication rates compared to historical patients who did not have this assessment, suggesting that referral to a heart team may be influenced more by age than by the patients’ overall health risks.
Background: Malignant tumours of the aortic valve apparatus are extremely rare and difficult to diagnose. Their proximity to the coronary ostium may cause an acute coronary syndrome (ACS) either by infiltration or by embolization.
Case Summary: We report a case of primary aortic valve undifferentiated sarcoma causing recurrent episodes of ACS, and we provide a literature review for primary cardiac valve tumours.