What is Lymphedema?
UNDERSTANDING THE LYMPHATIC SYSTEM
Your lymphatic system runs throughout your body and is parallel to your venous system. However, unlike your veins, the lymphatic system is not a closed system and has no central pump (i.e. your heart). It is made up of hundreds of lymph nodes, lymph vessels, and lymphatic capillaries spread throughout the body. The lymph vessels generally parallel your body’s arteries and veins. The lymph vessels collect and return excess fluid from all over the body, filter and concentrate it, and then return it back into the blood circulation.
Lymph nodes help filter bacteria and other toxins from your body by trapping harmful organisms and using specialized white blood cells to destroy them. These lymph vessels are equipped with valves that make sure fluid can be easily transported. Lymph fluid transport is aided by:
- Breathing (diaphragm)
- Muscle contractions
- Vasomotion (pulsation of arteries)
- External compression
- Manual lymphatic drainage
- Short stretch bandages
- Gradient compression garments
WHAT DOES THE LYMPHATIC SYSTEM DO?
The lymphatic system transports a watery clear fluid full of proteins and lymphocytes. Lymphocytes are infection-fighting cells. Lymph fluid is clearish yellow to milkly white in color, depending on where it is in the lymph system and how concentrated the lymph fluid is.
LIPID (FAT) ABSORPTION:
The lymphatic system also absorbs lipids from the intestine and transports them to the blood.
DRAIN EXCESS FLUID:
As the blood circulates through the body’s tissues, it leaves behind waste products such as proteins and fluids. Excess fluid is drained through capillaries and into the lymphatic system where it is filtered and returned to the blood.
THE DISRUPTED LYMPHATIC SYSTEM
Lymphedema occurs when lymph vessels, lymph collectors, or lymph nodes are damaged, and disrupt the normal flow of lymph fluid. When this damage occurs, the vessels start to swell and block fluid flow. Lymphedema can be in any part of the body, most often in the arms and legs, but also the breast or chest wall, head and neck, or genitals.
Lymphedema is a chronic condition caused by disruption of the lymphatic system. This disruption can lead to swelling, which causes damage to the tissues around the affected area. The body’s natural reaction is to send defense cells to the damaged area, which leads to further disruption, inhibiting fluid flow.
Everything you need to know about lymphedema
Lymphedema and/or chronic edema affects up to 1 million Canadians and occurs when the body cannot effectively transport lymph fluid. When transport is disrupted and lymph fluid cannot drain properly, swelling occurs. This swelling can be in any part of the body, most often in the arms and legs, but also the breast or chest wall, head and neck, or genitals.
Lymphedema has no known cure, but its symptoms can be managed. It’s important to know as much as needed about the condition so you can manage your lymphedema as effectively as possible.
A disease impacting millions, known by a few
Lymphedema [lim-fa-dee-mah] is a chronic condition where a protein rich fluid called lymph or lymphatic fluid collects in the tissues just below the skin causing swelling. Your lymphatic system runs throughout your body and is like a plumbing system for your lymph fluid.
When this system does not work properly, whether it was poorly developed from birth, or damaged from surgery, radiation, or a trauma, your body cannot effectively transport lymph fluid. When transport is interrupted and lymph fluid cannot drain properly, it causes swelling where the drainage is disrupted. This swelling can be in any part of the body, most often in the arms and legs, but also the breast or chest wall, head and neck, or genitals.
When the fluid remains stagnant in the tissue, the body recognizes this excess protein as “foreign” and wants to “wall off” this area to protect it. This can cause a state of inflammation, which then causes fibrosis (scar tissue). That fibrosis can feel hard and tight, and makes it more difficult for the fluid to move out of the area. It also puts patients at higher risk of wounds healing slowly and infections called cellulitis or lymphangitis. (You can read more about infections below.)
Would you like to receive tips on lymphedema?
Join the JOBST® community today!
Source : http://canadalymph.ca/what-is-it/