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- Q5055192 subject Q6866557.
- Q5055192 subject Q7011143.
- Q5055192 abstract "The cavoatrial junction (CAJ) is the point at which the superior vena cava meets and melds into the superior wall of the cardiac right atrium. Both the superior and inferior vena cavae enter the right atrium, but only the superior entry is called the cavoatrial junction. This junction marks the inferior end of the superior vena cava, the continuation below that point being considered part of the heart.For purposes of radiographic visualization, the most reliable indicator of junction location is to find the carina, then observe the vertebrae it overlies. The junction will lie two vertebral body units (VBUs) below the carina, counting the single intervertebral disc between them, but not the disc below them. It has been demonstrated that the more ordinary method of looking for the "bulge" in the cardiac outline is unreliable, since cardiac or other thoracic pathology can shift the apparent position of that landmark.Hospitalized patients may need to receive solutions and medications that, if given through an ordinary intravenous therapy catheter, would severely damage both blood cells and the vascular system. In these cases, it is common to insert a central venous catheter. All such catheters placed for the purpose of venous access and being inserted in the upper body will ideally have the tip placed within the superior vena cava at or just above the cavoatrial junction. Passing the line through the junction and into the atrium is to be avoided, as the result may be cardiac arrythmias and even cardiac tamponade, a potentially fatal outcome. For this reason, all placements should be verified by a chest X-ray before the line can be used.".
- Q5055192 thumbnail Diagram_of_the_human_heart_(cropped).svg?width=300.
- Q5055192 wikiPageWikiLink Q1072.
- Q5055192 wikiPageWikiLink Q1074839.
- Q5055192 wikiPageWikiLink Q180323.
- Q5055192 wikiPageWikiLink Q189331.
- Q5055192 wikiPageWikiLink Q190404.
- Q5055192 wikiPageWikiLink Q2298243.
- Q5055192 wikiPageWikiLink Q245341.
- Q5055192 wikiPageWikiLink Q488415.
- Q5055192 wikiPageWikiLink Q502781.
- Q5055192 wikiPageWikiLink Q592177.
- Q5055192 wikiPageWikiLink Q640448.
- Q5055192 wikiPageWikiLink Q6866557.
- Q5055192 wikiPageWikiLink Q7011143.
- Q5055192 wikiPageWikiLink Q736995.
- Q5055192 wikiPageWikiLink Q745438.
- Q5055192 wikiPageWikiLink Q929313.
- Q5055192 comment "The cavoatrial junction (CAJ) is the point at which the superior vena cava meets and melds into the superior wall of the cardiac right atrium. Both the superior and inferior vena cavae enter the right atrium, but only the superior entry is called the cavoatrial junction.".
- Q5055192 label "Cavoatrial junction".
- Q5055192 depiction Diagram_of_the_human_heart_(cropped).svg.