Aortic Reconstruction and Arterial Catheter Placement

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Questions and Answers

What was the primary purpose of the cardiac catheterization performed on 1000 patients?

  • To assess the effectiveness of cardiac medications
  • To monitor cardiac function during surgery
  • To diagnose coronary artery disease
  • To prepare patients for peripheral vascular surgery (correct)

How were the patients' coronary arteries classified in the study?

  • Based on the type of peripheral vascular surgery required
  • Based on the presence of aortic aneurysms
  • Based on the patient's medical history and symptoms
  • Based on the severity of CAD and collateral circulation (correct)

What percentage of patients had no suspected CAD?

  • 21% (correct)
  • 14%
  • 85%
  • 49%

What was the definition of severe, correctable CAD in the study?

<p>Greater than 70% stenosis in one or more coronary arteries (D)</p> Signup and view all the answers

How many patients had severe, inoperable CAD?

<p>58 (D)</p> Signup and view all the answers

What was the name of the journal where the study was published?

<p>Annals of Surgery (A)</p> Signup and view all the answers

What is the primary reason for selecting the radial artery for cannulation?

<p>It is superficial and easily accessible (D)</p> Signup and view all the answers

Why is a noninvasive blood pressure cuff placed on the arm contralateral to the arterial catheter?

<p>In the event of catheter malfunction (D)</p> Signup and view all the answers

What is the primary purpose of a central venous catheter in open aortic procedures?

<p>To monitor CVP and administer drugs directly into the central circulation (C)</p> Signup and view all the answers

In what patients is the routine use of pulmonary artery catheter monitoring recommended?

<p>Patients with severely limited cardiopulmonary function (A)</p> Signup and view all the answers

What is the correlation between CVP and left ventricular filling pressure in patients with good left ventricular and pulmonary function?

<p>There is a strong correlation (D)</p> Signup and view all the answers

When can invasive monitoring catheters be placed?

<p>Either before or after induction of general anesthesia (A)</p> Signup and view all the answers

What is the main advantage of placing a pulmonary artery catheter before induction?

<p>It enables the assessment of the patient's awake cardiovascular status (B)</p> Signup and view all the answers

In what type of patients may pulmonary artery catheter monitoring be beneficial?

<p>High-risk patients undergoing complex aortic reconstruction (C)</p> Signup and view all the answers

What has been the outcome of clinical studies on the clinical value of pulmonary artery catheter monitoring in high-risk patients?

<p>Conflicting and variable results, including both increases and decreases in mortality (C)</p> Signup and view all the answers

What was the conclusion of the large prospective, randomized trial sponsored by the National Heart, Lung and Blood Institute and the FDA?

<p>Treatment guided by a pulmonary artery catheter had no benefit compared to standard care (B)</p> Signup and view all the answers

What is the primary function of transesophageal echocardiography (TEE) during surgery?

<p>To assess global ventricular function and guide intravascular fluid therapy (B)</p> Signup and view all the answers

What is the purpose of correcting significant abnormalities in cardiac filling and function before induction?

<p>To optimize the patient's cardiovascular status for surgery (D)</p> Signup and view all the answers

What type of aortic dissection requires immediate surgical intervention?

<p>Dissections involving the ascending aorta (D)</p> Signup and view all the answers

What percentage of patients with chronic aortic dissection will develop significant aneurysmal dilatation?

<p>20% to 40% (D)</p> Signup and view all the answers

What is the primary reason for early surgical intervention in patients with acute aortic dissection?

<p>All of the above (D)</p> Signup and view all the answers

Which type of aortic dissection has an intimal tear in the proximal descending thoracic aorta?

<p>Type III (B)</p> Signup and view all the answers

What is the primary treatment approach for acute dissections involving the descending aorta?

<p>Conservative management (A)</p> Signup and view all the answers

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