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Related Concept Videos

Cardiac Catheterization IV: Nursing Management01:26

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Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
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Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
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Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
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Cardiac Catheterization II: Right Heart Catheterization01:21

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Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
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Anatomical Factors Influencing Catheterization Time in FEVAR Procedures (KT-FEVAR Study).

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Catheterization time during fenestrated endovascular aortic repair (FEVAR) is longer with downward-oriented target vessels (TVs) and ostial stenosis. These anatomical features, identified on CT scans, predict longer procedural times for FEVAR.

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Area of Science:

  • Vascular Surgery
  • Interventional Radiology
  • Medical Imaging

Background:

  • Catheterizing target vessels (TVs) in fenestrated endovascular aortic repair (FEVAR) is complex, increasing radiation exposure and procedure duration.
  • Anatomical variations of TVs can significantly impact procedural efficiency and safety.

Purpose of the Study:

  • To determine the correlation between anatomical features of target vessels (TVs) on computed tomography (CT) scans and catheterization time during FEVAR.
  • To identify predictive anatomical markers for prolonged catheterization in FEVAR procedures.

Main Methods:

  • A prospective, single-center study analyzed 40 patients undergoing FEVAR (excluding specific types) between May 2020 and April 2022.
  • CT scan measurements included TV diameter, aortic diameter, angulation, and ostial stenosis (>50%). Catheterization time was recorded from guidewire insertion to stent placement.
  • Univariate and multivariate analyses correlated anatomical parameters with catheterization time.

Main Results:

  • 132 TVs were analyzed; renal arteries (7 min), superior mesenteric artery (4.5 min), and celiac trunk (CT) (13 min) showed varying catheterization times.
  • Ostial stenosis was present in 16% of TVs.
  • TV angulation (downward orientation) and ostial stenosis were significant predictors of longer catheterization time in both univariate and multivariate analyses (P=0.01 and P<0.0001, respectively).

Conclusions:

  • Downward angulation and ostial stenosis of target vessels independently correlate with increased catheterization time in FEVAR.
  • These findings suggest considering alternative approaches like brachial access or steerable sheaths for challenging TV anatomies.
  • Pre-procedural planning using CT imaging can help anticipate and mitigate potential delays during FEVAR.