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Aortic Regurgitation I: Introduction

Aortic 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...

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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...

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...

Aneurysm I: Introduction

Aneurysm I: Introduction

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...

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Aneurysm II: Clinical Manifestations and Diagnostic Studies

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...

Aneurysm III: Interprofessional Care

Aneurysm 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...

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Updated: Jul 25, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Acute myocardial infarction caused by aortic dissection.

S Y Hu¹, C C Wang, H J Wei

¹Department of Emergency Medicine; Taichung Veterans General Hospital Taiwan, ROC. syh@vghtc.gov.tw

Zhonghua Yi Xue Za Zhi = Chinese Medical Journal; Free China Ed

|January 5, 2002

Summary

Aortic dissection can mimic acute myocardial infarction (AMI), but thrombolytic therapy is contraindicated for dissection. This rare case highlights AMI secondary to aortic dissection, requiring surgical intervention.

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An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

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Area of Science:

Cardiology
Vascular Surgery

Background:

Aortic dissection and acute myocardial infarction (AMI) share similar clinical presentations, complicating emergency diagnoses.
Accurate differentiation is critical as thrombolytic therapy for AMI is contraindicated in aortic dissection.

Observation:

A rare case of inferior wall AMI secondary to type I aortic dissection is presented.
The patient exhibited chest pain and hemiparaplegia of the right lower limb.

Findings:

AMI in this context can arise from coronary artery compression by hematoma or dissection extension.
Surgical intervention is the primary treatment for AMI caused by dissection extending into coronary arteries.

Implications:

Emphasizes the need for heightened clinical suspicion for aortic dissection in patients with AMI symptoms.
Highlights the importance of prompt diagnosis and appropriate management, particularly surgical intervention, in rare cases of dissection-induced AMI.