Central venous catheterization allows for an adequate therapy of critically ill patients during complex therapeutic interventions, especially in anesthesia, intensive care and emergency.
1. Monitoring the central venous pressure (CVP) : it reflects the right ventricular preload and is an index guiding clinical infusion (normal VALUE of CVP: 5-12cmH2O).
|
CVP |
|
BP |
Clinical significance |
Approach |
|
|
low |
low |
Hypovolemia |
Adequate fluid replacement |
|
high |
low |
Cardiac insufficiency or relatively excessive volume |
Strengthens the heart and relaxes the blood vessels |
|
high |
normal |
Volume vasoconstriction, high PVR |
Diastolic blood vessels |
|
normal |
low |
Low CO, relatively insufficient capacity |
Rehydration experiment |
2. Quickly open the large venous channel and quickly replenish fluid: central venous puncture can provide the fastest infusion speed.
|
Back of the hand and forearm veins |
< 95 ml/min |
|
Elbow and upper arm veins |
100 – 300ml/min |
|
Subclavian vein |
1 - 1.5L/min |
|
Superior vena cava |
2 - 2.5L/min |
3. Infusion of special drugs: Infusion of the following drugs has different degrees of damage and impact on peripheral veins, it is necessary to use a central venous catheter infusion instead.
l Extreme osmotic pressure ＞ 500mOsm/Kg
l ＞ 10% glucose
l Stimulating drugs, etc.
Hisern Medical’s Central Venous Catheter Features:
l Equipped with Guided Syringe or T-Type introducer.
l Sterile product and comes with single use.
l Contains scalpel, Catheter holder and clamp, indwelling catheter, injection cap, extension line clamp and other necessary consumables.
Central Venous Catheter(CVC) can be lifesaving but is associated with complication rates of approximately 15%. Operator experience, familiarity with the advantages and disadvantages of the various catheterization sites, and strict attention to detail during insertion help reduce mechanical complications associated with catheterization. Strict aseptic technique and proper catheter maintenance decrease the frequency of catheter-related infections. Routine scheduled catheter changes are not war- ranted. In all cases, central venous catheters should be removed as soon as they are no longer needed.