5 天之前 · The superior vena cava (SVC) is a large, valveless vein that conveys venous blood from the upper half of the body and returns it to the right atrium. In this article, we will look at the anatomy of the superior vena cava – its position, tributaries, and clinical correlations.

The superior vena cava is a large (measures .78 inches in diameter and 2.7 inches in length.), significant vein responsible for returning deoxygenated blood collected from the body back into the heart. The superior vena cava starts at the lower border of the first costal cartilage.

2024年8月1日 · Where Is the Vena Cava Located? The superior vena cava begins behind the sternum (breast bone) near the right first rib. It travels down and drains into the right atrium at the level of...

2021年9月15日 · The superior vena cava begins behind the lower border of the first right costal cartilage and descends vertically behind the first and second intercostal spaces to drain into the right atrium at the superior cavoatrial junction (at the level of the third costal cartilage). Its lower half is covered by the fibrous pericardium, which it pierces ...

PICC tip was placed under ultrasound guidance in lower third of superior vena cava in the RTUS group. In 'CL' group, PICC was inserted as calculated by anatomical landmarks. Results: The birth weight (1286 (926, 1662) vs. 1061 (889, 1636) g) and gestation (31.12 (3.1) vs. 31.4 (3.6) wks) were comparable among the groups.

2014年10月22日 · Recently there has been an increase in evidence that the tip position of a peripherally inserted central catheter (PICC) needs to be accurately placed in the lower third of the superior vena cava at the junction with the right atrium in order to minimise potential complications ( Royal College of Nu …

2021年6月15日 · Position the tip of the central vascular access device in the lower third of the superior vena cava at or near the Cavo atrial junction for adults and children. For upper body insertion sites, respiratory variation, arm movement, and changes in body position will cause the CVAD tip to move above or below the cavo atrial junction, indicating ...

2023年5月1日 · The SVC is imaged on TEE from the midesophageal and transgastric windows, 11 providing excellent visualization of the lower third to lower half of the SVC and allowing accurate measurement of its diameter and cross-sectional area. The upper SVC cannot be imaged on TEE, because of interposition of the trachea.

2018年8月8日 · The superior vena cava is composed at the lower border of the right 1st costal cartilage by the union of left and right brachiocephalic (innominate) veins. It enters vertically downwards behind the right border of the sternum and pierces the pericardium in the level of the right 2nd costal cartilage, and opens/ends into the upper part of the ...

A review of 50 years of research on catheter tip placement indicates an overwhelming preference for the lower third of the superior vena cava as the appropriate tip location. Despite this evidence, there are still practitioners, physicians, and nurses who advocate tip …