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Related Concept Videos

Aneurysm IV: Nursing Management01:22

Aneurysm 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...
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 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...
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...
Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

Cardiomyopathy VII: Pre and Post Operative Nursing Management

Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...

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Related Experiment Video

Updated: Jul 2, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
12:17

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

Outcomes after elective total aortic arch replacement: Does obesity matter?

Vicente Orozco-Sevilla1,2,3, Michael Tyler Guinn1,4, Ivan Murrieta-Alvarez1,5

  • 1Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex.

JTCVS Open
|July 1, 2026
PubMed
Summary

Obesity does not increase operative mortality or adverse events in patients undergoing total aortic arch replacement (TAR). Patients with obesity should not be excluded from TAR solely based on their weight.

Keywords:
aortic archbody mass indexcardiovascular surgical proceduresobesitypostoperative complications

Related Experiment Videos

Last Updated: Jul 2, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
12:17

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

Area of Science:

  • Cardiovascular Surgery
  • Surgical Outcomes
  • Obesity Research

Background:

  • Obesity is a known risk factor for mortality and morbidity in cardiac procedures.
  • The specific impact of obesity on outcomes following total aortic arch replacement (TAR) is not well-established.
  • Understanding perioperative risks associated with obesity in TAR is crucial for patient management.

Purpose of the Study:

  • To investigate the association between obesity and perioperative risk in patients undergoing total aortic arch replacement (TAR).
  • To determine if body mass index (BMI) is a predictor of adverse outcomes after TAR.

Main Methods:

  • Retrospective analysis of 521 patients who underwent TAR between 1990 and 2023, excluding those with missing BMI, non-elective procedures, or underweight status.
  • Patients were categorized based on BMI: normal weight (18.5–29.9 kg/m²) versus obesity (≥30 kg/m²).
  • Multivariable logistic regression and Kaplan-Meier survival analysis were used to compare preoperative and perioperative variables and long-term survival.

Main Results:

  • Patients with obesity exhibited higher rates of obstructive sleep apnea, transient spinal cord deficit, and acute renal dysfunction.
  • Operative mortality and overall adverse events did not significantly differ between obese and normal-weight patients.
  • Factors predicting operative mortality included chronic kidney disease, pulmonary disease, longer aortic clamp time, and prolonged antegrade cerebral perfusion time (>30 minutes).

Conclusions:

  • Obesity is not independently associated with increased operative mortality or adverse events after total aortic arch replacement.
  • Body mass index alone should not be a criterion for excluding patients from undergoing TAR.
  • Further research may explore specific management strategies for obese patients undergoing complex aortic procedures.