What is a subclavian ultrasound?
Ultrasound-guided cannulation of the subclavian vein uses real-time (dynamic) ultrasound to guide venipuncture and a guidewire (Seldinger technique) to thread a central venous catheter through the subclavian vein and into the superior vena cava.
How do you Cannulate subclavian veins?
The puncture needle is then advanced through the skin beneath the thumb and angled toward the sternal notch. A syringe is placed on gentle suction while attempting to cannulate the vein. The thumb is used to help guide the needle below the clavicle between the clavicle and the first rib.
What drains into the subclavian veins?
The subclavian vein is a paired large vein, one on either side of the body, that is responsible for draining blood from the upper extremities, allowing this blood to return to the heart….
| Subclavian vein | |
|---|---|
| Source | axillary vein, external jugular vein |
| Drains to | brachiocephalic vein |
| Artery | subclavian artery |
| Identifiers |
How do you find the subclavian vein?
The subclavian vein (SCV) is a deep central vein that is an extension of the axillary vein as it courses beneath the clavicle starting at the lateral border of the first rib before joining the internal jugular vein (IJV) medially under the clavicle.
How long can a subclavian central line last?
A central venous catheter can remain for weeks or months, and some patients receive treatment through the line several times a day.
What are the subclavian veins for?
The primary function of the subclavian vein is to drain deoxygenated blood from the upper region of the body—including the arms and the shoulder areas—and transport it back to the heart. 6 Another important function of the subclavian is to collect lymph fluid from the lymphatic system from the internal jugular vein.
Where is the subclavian vein ultrasound?
Anatomically, the subclavian vein can be accessed utilizing a supraclavicular or infraclavicular approach. To cannulate the vein in the supraclavicular approach, stand at the head of the bed as if placing an internal jugular line. Place the probe above the clavicle and visualize the vein.
What happens if the subclavian vein is blocked?
This tissue causes the vein to narrow and restrict blood flow, leading to the formation of blood clots. Left untreated, axillo-subclavian vein thrombosis can cause: Arm pain and fatigue. Arm swelling.
What is the function of subclavian vein?