Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Edema shopping experience:
1. Compare - without doubt the biggest advantage that the Edema offers shoppers today is the ability to compare thousands of Edema at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.
2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about
3. Testimonials - don't know anybody that has bought a Edema? Wrong! If the Edema is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.
4. Questions - Got a question about Edema then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....
5. Reputation - Never heard of the company selling Edema? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Edema and build up a picture of their reputation for sales, returns, customer service, delivery etc.
6. Returns - still worried that even after all of the above your Edema wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.
7. Feedback - happy with your Edema then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.
8. Security - check for the yellow padlock on the Edema site before you buy, and the s after http:/ /i.e. https:// = a secure site
9. Contact - got a question about Edema, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.
10. Payment - ready to pay for your Edema, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.
{{SignSymptom infobox | Name = Edema|
Image = |
Caption = |
DiseasesDB = 9148 |
ICD10 = {{ICD10|R|60|9|r|50--> |
ICD9 = {{ICD9|782.3--> |
ICDO = |
OMIM = |
MedlinePlus = |
eMedicineSubj = |
eMedicineTopic = |
MeshName = Edema|
MeshNumber = C23.888.277 |
-->
This page is about the medical condition. For the rock band, see Adema.
Edema (
American English),
oedema or
œdema (British English), formerly known as
dropsy or
hydropsy, is the increase of
interstitial fluid in any organ — swelling. Generally, the amount of interstitial fluid is in the balance of homeostasis. Increased secretion of fluid into the interstitium or impaired removal of this fluid may cause edema.
Generation of interstitial fluid is regulated by the
Starling equation of tissue fluid which states that it depends on the balance of osmotic pressure and of
hydrostatic pressure which act in opposite directions across the semipermeable
capillary walls. Consequently, anything that increases oncotic pressure outside blood vessels (for example
inflammation), or reduces oncotic pressure in the blood (states of low blood plasma osmolality, for example
cirrhosis) will cause edema. Increased hydrostatic pressure inside the blood vessel (for example in
heart failure) will have the same effect. If the permeability of the capillary walls increases, more fluid will tend to escape out of the capillary, as can happen when there is
inflammation.
Abnormal removal of interstitial fluid is caused by obstruction of the
lymphatic system, for example due to pressure from a
cancer or enlarged lymph nodes, destruction of lymph vessels by radiotherapy, or infiltration of the lymphatics by infection such as
elephantiasis.
Peripheral edema
Edema without a modifier usually refers to
peripheral or
dependent edema, the accumulation of
fluid in the parts of the body that are most affected by
gravity. In ambulatory people these are the
legs, although in those who are bedbound the first manifestation may be sacrum edema. If severe enough, peripheral edema may progress to involve the abdominal or even thoracic wall (this may be referred to as
generalized edema or
anasarca). In particular edema states (e.g. nephrotic syndrome, see below),
periorbital edema (around the eyes) may be present.
Some phenomena may distinguish different causes of peripheral edema. Most peripheral edema is
pitting edema - pressing down will lead to a shift in the interstitial fluid and the formation of a small pit that resolves over seconds. Non-pitting edema may reflect
lymphedema, a form of edema that develops when the
lymph vessels are obstructed, or
myxedema, which occurs in hypothyroidism.
Causes of peripheral edema are:
- high hydrostatic pressure of the veins, leading to poor reabsorption of fluid
- venous obstruction, e.g. deep vein thrombosis (typically one-sided)
- congestive heart failure
- varicose veins
- asymmetric compression of thigh and leg (e.g., knee pads, tight jeans)
- low oncotic pressure
- obstruction of lymph drainage
- inflammation (active secretion of fluid into the interstitial space due to increased membrane permeability by inflammatory mediators):
- allergy conditions (e.g. angioedema)
- any other form of inflammation (tumor - or swelling - is one of the main characteristics of inflammation)
Organ-specific edema
Edema of specific organs (cerebral edema,
pulmonary edema, macular edema) may also occur, each with different specific causes to peripheral edema, but all based on the same principles.
Ascites is effectively edema within the peritoneal cavity, as pleural effusions are effectively edema in the pleural cavity. Causes of edema which are generalized to the whole body can cause edema in multiple organs and peripherally. For example, severe heart failure can cause peripheral edema, pulmonary edema, pleural effusions and ascites.
Common and usually harmless appearances of cutaneous edema are observed with mosquito bites and skin contact with certain plants (urticaria).
Edema may be found in the eyes after corrective surgery.
Edema in plants
Edema in plants is the extended swelling in plant organs caused primarily by an excessive accumulation of water.
References
External links
- Medline Encyclopedia - Swelling
{{SignSymptom infobox | Name = Edema|
Image = |
Caption = |
DiseasesDB = 9148 |
ICD10 = {{ICD10|R|60|9|r|50--> |
ICD9 = {{ICD9|782.3--> |
ICDO = |
OMIM = |
MedlinePlus = |
eMedicineSubj = |
eMedicineTopic = |
MeshName = Edema|
MeshNumber = C23.888.277 |
-->
This page is about the medical condition. For the rock band, see Adema.
Edema (American English),
oedema or
œdema (British English), formerly known as
dropsy or
hydropsy, is the increase of
interstitial fluid in any organ — swelling. Generally, the amount of interstitial fluid is in the balance of homeostasis. Increased secretion of fluid into the interstitium or impaired removal of this fluid may cause edema.
Generation of
interstitial fluid is regulated by the Starling equation of tissue fluid which states that it depends on the balance of osmotic pressure and of hydrostatic pressure which act in opposite directions across the semipermeable
capillary walls. Consequently, anything that increases oncotic pressure outside blood vessels (for example inflammation), or reduces oncotic pressure in the blood (states of low
blood plasma osmolality, for example cirrhosis) will cause edema. Increased hydrostatic pressure inside the blood vessel (for example in heart failure) will have the same effect. If the permeability of the capillary walls increases, more fluid will tend to escape out of the capillary, as can happen when there is inflammation.
Abnormal removal of interstitial fluid is caused by obstruction of the lymphatic system, for example due to pressure from a cancer or enlarged lymph nodes, destruction of lymph vessels by radiotherapy, or infiltration of the lymphatics by infection such as
elephantiasis.
Peripheral edema
Edema without a modifier usually refers to
peripheral or
dependent edema, the accumulation of
fluid in the parts of the body that are most affected by gravity. In ambulatory people these are the
legs, although in those who are bedbound the first manifestation may be sacrum edema. If severe enough, peripheral edema may progress to involve the abdominal or even thoracic wall (this may be referred to as
generalized edema or
anasarca). In particular edema states (e.g. nephrotic syndrome, see below),
periorbital edema (around the eyes) may be present.
Some phenomena may distinguish different causes of peripheral edema. Most peripheral edema is
pitting edema - pressing down will lead to a shift in the interstitial fluid and the formation of a small pit that resolves over seconds. Non-pitting edema may reflect
lymphedema, a form of edema that develops when the
lymph vessels are obstructed, or
myxedema, which occurs in hypothyroidism.
Causes of peripheral edema are:
- high hydrostatic pressure of the veins, leading to poor reabsorption of fluid
- low oncotic pressure
- obstruction of lymph drainage
- inflammation (active secretion of fluid into the interstitial space due to increased membrane permeability by inflammatory mediators):
- allergy conditions (e.g. angioedema)
- any other form of inflammation (tumor - or swelling - is one of the main characteristics of inflammation)
Organ-specific edema
Edema of specific organs (
cerebral edema, pulmonary edema,
macular edema) may also occur, each with different specific causes to peripheral edema, but all based on the same principles. Ascites is effectively edema within the peritoneal cavity, as pleural effusions are effectively edema in the
pleural cavity. Causes of edema which are generalized to the whole body can cause edema in multiple organs and peripherally. For example, severe heart failure can cause peripheral edema, pulmonary edema, pleural effusions and ascites.
Common and usually harmless appearances of cutaneous edema are observed with
mosquito bites and skin contact with certain plants (
urticaria).
Edema may be found in the eyes after corrective surgery.
Edema in plants
Edema in plants is the extended swelling in plant organs caused primarily by an excessive accumulation of water.
References
External links
- Medline Encyclopedia - Swelling
Edema - Wikipedia, the free encyclopedia
Edema (American English), or oedema (British English), formerly known as dropsy or hydropsy, is the increase of interstitial fluid in any organ — swelling.
MedlinePlus: Edema
Edema ... Edema means swelling caused by fluid in your body's tissues. It usually occurs in the feet, ankles and legs, but it can involve your entire body.
Definition: oedema from Online Medical Dictionary
edema -->
edema - definition of edema by the Free Online Dictionary, Thesaurus ...
e·de·ma also oe·de·ma (-d m) n. pl. e·de·mas or e·de·ma·ta (-m-t) 1. Pathology An excessive accumulation of serous fluid in tissue spaces or a body cavity.
Edema (Pitting and Non-Pitting Edema) Causes, Diagnosis, Symptoms, and ...
Read about edema, an observable swelling in certain parts of the body. Edema may fall into one of two categories: pitting and non-pitting edema. When applying pressure to the ...
edema - Hutchinson encyclopedia article about edema
oedema. Any abnormal accumulation of fluid in tissues or cavities of the body; waterlogging of the tissues due to excessive loss of plasma through the capillary walls.
edema definition of edema in the Free Online Encyclopedia.
edema (ĭdē`mə), abnormal accumulation of fluid in the body tissues or in the body cavities causing swelling or distention of the affected parts.
Edema and Pregnancy - Foot Care Tips
Edema is a term used in reference to swollen feet that usually occurs during the last few months of a woman's pregnancy. This page explores foot pain associated with pregnancy and ...
MedlinePlus Medical Encyclopedia: Swelling
Alternative Names Return to top. Edema; Anasarca. Definition Return to top. Swelling is the enlargement of organs, skin, or other body parts.
Cerebral edema - Wikipedia, the free encyclopedia
Cerebral edema (cerebral oedema in British English) is an excess accumulation of water in the intracellular and/or extracellular spaces of the brain.
