Comparison of Oxygen Saturation of Blood in Azygos Vein and Superior Vena Cava

Comparison of oxygen saturation of blood in azygos vein and superior vena cava.

Blood samples from the superior vena cava (SVC) are usually considered an acceptable representation of mixed systemic venous return in identifying and quantifying left-to-right atrial shunts. However, if during sampling from the SVC unrecognized entrance of the catheter into the azygos vein takes place, diagnostic errors may result. Blood samples from the azygos vein were collected from 60 chil...

Left superior vena cava with left azygos vein.

An incidence of a left superior vena cava with a left azygos vein was found in a cadaver during an Osaka Dental University student's dissection practice session in 2002. The left superior vena cava began from the confluence between the right and left brachiocephalic veins, and extended directly into the left superior edge of the coronary sinus. No right superior vena cava was observed. The left...

The efficacy of inferior vena cava diameters and the jugular vein in assessing fluid resuscitation

Objective: Fluid resuscitation is necessary in almost all critical patients. The central venous pressure (CVP) is a well-established method of assessing resuscitation. Recently, there have been attempts to investigate less invasive methods like the diameters of inferior vena cava (IVC) or the jugular vein. We aimed to investigate this method in our research.Methods: Seventy eight critical...

Askin Tumor Presenting as Superior Vena Cava Syndrome

Comparison of superior vena cava and femoroiliac vein pressure according to intra-abdominal pressure

BACKGROUND Previous studies have shown a good agreement between central venous pressure (CVP) measurements from catheters placed in superior vena cava and catheters placed in the abdominal cava/common iliac vein. However, the influence of intra-abdominal pressure on such measurements remains unknown. METHODS We conducted a prospective, observational study in a tertiary teaching hospital. We e...