1 / 23

Edema

Edema. Zhao Mingyao.ZZU. Nuo Ya square boat. Dayu. 1.Concept. A large amount of body fluid accumulates in the interstitial space (interstitial fluid↑). fluid. blood vessel. Cell. interstitial space. 60% of body weight). Edema.

bradleymoreno
Download Presentation

Edema

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Edema Zhao Mingyao.ZZU

  2. Nuo Ya square boat Dayu

  3. 1.Concept A large amount of body fluid accumulates in the interstitial space (interstitial fluid↑) fluid blood vessel Cell interstitial space 60% of body weight)

  4. Edema Soft tissue swelling due to expansion of the interstitial volume A large amount of body fluid accumulates in the interstitial space (interstitial fluid↑)

  5. Distinguish concepts • Edema • Hydrops • Cellular edema

  6. Edema Cause, site, type, formation, feature, impact, treatment

  7. Does the body weight certainly increase in all type of edema?

  8. 2.Pathogenesis (1)Disturbance of Transcapillary Fluid Exchange (2)Sodium and Water Retention

  9. Formation of interstitial fluid review back-flow

  10. (1)Disturbance of Transcapillary Fluid Exchange Formation > back-flow(for interstitial fluid ) 1. Capillary blood pressure↑ 2. Plasma colloid osmotic pressure↓ 3. Capillary wall permeability↑ 4. Obstruction of lymphatic flow

  11. ↑Capillary Hydrostatic Pressure Filariasis

  12. (2) Sodium and Water Retention ①GFR↓ ②Reabsorption↑ of renal tubule Reabsorption of salt

  13. afferent arteriole proximal tubule Renal glomerulu Bowman's space efferent arteriole ①Glomerular filtration rate (GFR) ↓ Primary ↓: renal failure Second ↓: ECBV ↓

  14. ②Reabsorption↑of Na+ and H2O ⅰ. ADS ↑& ADH ↑ ⅱ. ANF、kinin、PGE↓ ⅲ. Redistribution of renal blood flow ⅳ. Filtration fraction↑ Atrial natriuretic factor

  15. Redistribution of renal blood flow Cortical nephrons proximal medullary nephrons Collecting tubules

  16. Reabsorption ↑ sympathetic nerve excitation ↑

  17. afferent arteriole proximal tubule Renal glomerulu Bowman's space efferent arteriole Filtration fraction↑ FF = GFR/ renal plasma flow efferent arteriole contraction > afferent arteriole contraction

  18. 3. Treatment of edema neither begin nor end with the administration of diuretics. ① First, treat the underlying disease ②Decrease Na+ intake, either dietary or intravenous ③Increase excretion of sodium and water a. Diuretics - remember, these are palliative, not curative. b. Bed rest, local pressure

  19. Question • Why , sometimes, can`t we get satisfied effects when treat some systemic edema (anasarca)with diuretics, but use albumin to get well result?

  20. Thanks

More Related