Related Experiment Video
Updated: Jan 15, 2026
04:56
Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
471
Y-Incision Aortic Annular Enlargement in Patients With Anomalous Left Circumflex Artery
Kanhua Yin1, Marc Titsworth1, Bo Yang1
1Department of Cardiac Surgery, University of Michigan, Ann Arbor, MI 48109, United States.
Summary
Y-incision aortic annular enlargement (Y-AAE) safely accommodates larger aortic valve prostheses, even with anomalous left circumflex arteries (LCx). This technique allows for optimal valve sizing while preserving coronary artery anatomy.
Area of Science:
- Cardiovascular Surgery
- Cardiac Anesthesia
- Thoracic Surgery
Background:
- Y-incision aortic annular enlargement (Y-AAE) is a crucial technique for aortic valve upsizing.
- Anomalous origin of the left circumflex artery (LCx) from the right coronary sinus presents unique surgical challenges during aortic valve procedures.
- Optimal prosthesis sizing is essential for favorable long-term outcomes in aortic valve replacement.
Purpose of the Study:
- To evaluate the safety and efficacy of Y-AAE in patients with aortic annular hypoplasia and an anomalous LCx.
- To demonstrate the feasibility of achieving significant aortic annular upsizing in the presence of complex coronary anatomy.
- To report outcomes of Y-AAE with aortic valve replacement in a patient with an anomalous LCx.
Main Methods:
- A case report of Y-AAE with aortic valve replacement in a patient with an anomalous LCx originating from the right coronary sinus.
- Surgical technique involved careful dissection and preservation of the anomalous LCx.
- Review of four institutional cases of Y-AAE involving significant valve upsizing (≥3 sizes or to size 29).
Main Results:
- Successful aortic annular enlargement from 25 mm to accommodate a size 29 prosthesis.
- The anomalous LCx was successfully dissected and preserved, with no postoperative myocardial ischemia.
- In the reviewed cases, one patient required primary repair of an LCx injury; no patient developed myocardial ischemia during up to 3 years of follow-up.
Conclusions:
- Y-incision aortic annular enlargement is a safe and effective procedure for aortic valve upsizing, even in the presence of an anomalous left circumflex artery.
- Careful surgical technique allows for the preservation of coronary anatomy, minimizing the risk of myocardial ischemia.
- Y-AAE facilitates optimal prosthesis selection, potentially improving patient outcomes in complex aortic valve replacement scenarios.
More Related Videos
Related Concept Videos
01:26Aneurysm III: Interprofessional Care
254
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...
254
01:30Aneurysm I: Introduction
363
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
363
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
402
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
402
01:25Abdominal Aorta
2.1K
Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
The celiac trunk, a singular artery, divides into the left gastric artery, which...
2.1K
01:15Aortic Regurgitation I: Introduction
472
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...
472
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
288
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
288