INTRODUCTION: It is possible to detect venous gas bubbles by listening to ... axis that estimates the duration of the embolic event. Subclavian Doppler audio recordings obtained from a high ...

a patient may not have an accessible peripheral vein, even when ultrasound is used. This patient will require a different type of central catheter. The presence of upper extremity or subclavian ...

Three to four percent of cases of TOS are due to obstruction or clotting of the main vein to the arm - the subclavian vein - a condition called venous TOS. Venous TOS is commonly due to strenuous use ...