Related Experiment Video

Updated: Aug 16, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Aortic dissection

L Michael Prisant1, V R Prasad Nalamolu

  • 1Hypertension and Clinical Pharmacology, Medical College of Georgia, Augusta, GA 30912, USA. mprisant@mail.mcg.edu

Journal of Clinical Hypertension (Greenwich, Conn.)
|August 10, 2005
PubMed

Insights

Aortic dissection, a serious complication of hypertension, often presents with sudden chest pain and may be detected incidentally. Early diagnosis via imaging is crucial, as mortality rates vary significantly between Type A and Type B dissections.

Area of Science:

  • Cardiovascular Medicine
  • Radiology
  • Hypertension Research

Background:

  • Aortic root enlargement is often asymptomatic, discovered incidentally via imaging like chest X-rays or CT scans.
  • Aortic dissection is a critical complication associated with hypertension, though blood pressure thresholds for presentation vary by type.

Purpose of the Study:

  • To summarize key clinical presentations, diagnostic findings, and mortality rates associated with aortic dissection.

Main Methods:

  • Review of clinical data including patient history, blood pressure measurements, symptom presentation, and physical examination findings.
  • Analysis of imaging modalities such as chest X-ray, contrast-enhanced computerized tomography, and transesophageal echocardiography for diagnosis.
  • Inclusion of data from the International Registry of Acute Aortic Dissection for specific findings.

Main Results:

  • Hypertension is a common comorbidity, but systolic blood pressure can be below 150 mm Hg in 64% of Type A dissections.
  • 71% of Type B dissections present with systolic blood pressure ≥150 mm Hg.
  • Widened mediastinum on chest X-ray is observed in over 56% of dissections; pulse deficits occur in 30% and predict high mortality.
  • In-house mortality is 32.5% for Type A and 13% for Type B dissections.

Conclusions:

  • Aortic dissection diagnosis relies on clinical suspicion and advanced imaging, with distinct presentation patterns and mortality rates for Type A and Type B.
  • Prompt diagnosis and management are essential given the significant in-house mortality associated with aortic dissections.

More Related Videos

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta07:12

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

Published on: September 8, 2023

Related Concept Videos

Aneurysm I: Introduction01:30

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 Studies01:21

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 Care01:26

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...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

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...
Aortic Regurgitation I: Introduction01:15

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 III: Medical Management01:25

Aortic 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...