Superior cavoatrial junction
Updates to Article Attributes
Body
was changed:
Thesuperiorcavo-atrial junction, generally referred to as simply the cavo-atrial junction refers to(CAJ), is the junction of the right lateral border of the superior vena cava (SVC) and the superior border of the right atrium1
It is an important landmark to recognise because it marks an optiumoptimum site for central venous catheter tip placement.
Radiographic appearance
Chest radiograph
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inflectionThere are a variety of methods to estimate the position of the
lateral right atrial border with that of the SVC
cavo-atrial junction on chest radiographs:
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more reliably estimated astwo vertebral body levels below the level of the carina 2 -
intersection of bronchus intermedius with the right heart border or inflection of the right heart border with the SVC contour 3
- note: superior right heart border may not always be formed by the right atrium and may be formed by the right atrial appendage or left atrium4
- within one vertebral space either side of T5/6 4
-<p>The <strong>cavo-atrial junction</strong> refers to the junction of the right lateral border of the <a title="Superior vena cava" href="/articles/superior-vena-cava">superior vena cava</a> (SVC) and the superior border of the <a title="right atrium" href="/articles/right-atrium">right atrium</a> <sup>1</sup>. It is an important landmark to recognise because it marks an optium site for <a title="Central venous catheter" href="/articles/central-venous-catheter">central venous catheter</a> tip placement. </p><h4>Radiographic appearance</h4><h5>Chest radiograph</h5><ul>-<li>inflection of the lateral right atrial border with that of the SVC</li>-<li>more reliably estimated as two vertebral body levels below the level of the carina <sup>2</sup>- +<p>The <strong>superior</strong> <strong>cavo-atrial junction</strong>, generally referred to as simply the <strong>cavo-atrial junction</strong> (<strong>CAJ</strong>), is the junction of the right lateral border of the <a href="/articles/superior-vena-cava">superior vena cava</a> (SVC) and the superior border of the <a href="/articles/right-atrium">right atrium</a>.</p><p>It is an important landmark to recognise because it marks an optimum site for <a href="/articles/central-venous-catheter">central venous catheter</a> tip placement. </p><h4>Radiographic appearance</h4><h5>Chest radiograph</h5><p>There are a variety of methods to estimate the position of the cavo-atrial junction on <a href="/articles/chest-radiograph">chest radiographs</a>:</p><ul>
- +<li>two <a href="/articles/vertebral-body">vertebral body</a> levels below the level of the <a href="/articles/carina">carina</a> <sup>2</sup>
- +<li>intersection of <a href="/articles/bronchus-intermedius">bronchus intermedius</a> with the right <a href="/articles/normal-contours-of-the-cardiomediastinum-on-chest-radiography">heart border</a> or inflection of the right heart border with the SVC contour <sup>3</sup><ul><li>
- +<strong>note: </strong>superior right heart border may not always be formed by the right atrium and may be formed by the right atrial appendage or <a href="/articles/left-atrium">left atrium</a> <sup>4</sup>
- +</li></ul>
- +</li>
- +<li>within one vertebral space either side of T5/6 <sup>4</sup> </li>
References changed:
- 2. Baskin KM, Jimenez RM, Cahill AM et-al. Cavoatrial junction and central venous anatomy: implications for central venous access tip position. J Vasc Interv Radiol. 2008;19 (3): 359-65. <a href="http://dx.doi.org/10.1016/j.jvir.2007.09.005">doi:10.1016/j.jvir.2007.09.005</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/18295694">Pubmed citation</a><span class="auto"></span>
- 1. Venugopal AN, Koshy RC, Koshy SM. Role of chest X-ray in citing central venous catheter tip: A few case reports with a brief review of the literature. J Anaesthesiol Clin Pharmacol. 2013;29 (3): 397-400. <a href="http://dx.doi.org/10.4103/0970-9185.117114">doi:10.4103/0970-9185.117114</a> - <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3788245">Free text at pubmed</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/24106371">Pubmed citation</a><span class="auto"></span>
- 3. Ridge CA, Litmanovich D, Molinari F et-al. Radiographic evaluation of central venous catheter position: anatomic correlation using gated coronary computed tomographic angiography. J Thorac Imaging. 2013;28 (2): 129-33. <a href="http://dx.doi.org/10.1097/RTI.0b013e31825d2db9">doi:10.1097/RTI.0b013e31825d2db9</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/23426063">Pubmed citation</a><span class="auto"></span>
- 4. Totally Implantable Venous Access Devices. Springer. ISBN:8847023726. <a href="http://books.google.com/books?vid=ISBN8847023726">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/8847023726">Find it at Amazon</a><span class="auto"></span>
Sections changed:
- Anatomy
Systems changed:
- Chest
- Cardiac
Tags changed:
- chest x-ray
Images Changes:
Image 1 Annotated image (Frontal) ( create )
Caption
was added:
Figure 1: cavo-atrial junction
Updates to Synonym Attributes
Updates to Synonym Attributes
Title
was changed:
Cavoatrial junction (CAJ)
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