HemodialysisHHemodialysisHemodialysisEnglishNephrologyChild (0-12 years);Teen (13-18 years)KidneysCardiovascular systemNon-drug treatmentCaregivers Adult (19+)NA2014-07-30T04:00:00ZElizabeth Piva, RN;Susan Ackerman, RN;SickKids Home Dialysis Program9.0000000000000059.0000000000000426.000000000000Health (A-Z) - ProcedureHealth A-Z<p>Learn how hemodialysis removes waste products from the blood when the kidneys fail.</p><p>Healthy <a href="https://pie.med.utoronto.ca/htbw/module.html?module=kidney-child">kidneys</a> clean the blood by removing waste products and unwanted fluid and flushing them out of the body through urine. When the kidneys fail, hemodialysis takes over the job that they can no longer do.</p><p>During hemodialysis, blood is removed from your child's body through a tube. It then goes to a mechanical kidney called a dialyzer. The dialyzer cleans the blood by removing waste products and unwanted fluid. The blood then returns to your child's body through another tube.</p><p>This type of dialysis can be done <a href="/Article?contentid=41&language=English">at home</a> or <a href="/Article?contentid=43&language=English">in the hospital</a> and is safe, efficient and usually painless. It may be done several times a week.</p> <figure> <img src="https://assets.aboutkidshealth.ca/akhassets/IMD_Hemodialysis_schematic_EN.jpg" alt="" /> <figcaption class="asset-image-caption">Simple illustration of hemodialysis</figcaption> </figure><h2>Key points</h2> <ul> <li>Hemodialysis uses a mechanical kidney, called a dialyzer, to clean the blood when the kidneys can no longer do so.</li> <li>Blood travels to and from the dialyzer through a central venous line or fistula.</li> <li>Hemodialysis can be done at home or in the hospital.</li> </ul><h2>How hemodialysis works</h2> <p>Hemodialysis works on two principles:</p> <ul> <li>osmosis</li> <li>diffusion</li> </ul> <p>Osmosis is the ability of water to pass through the wall of a cell. This wall is called a semi-permeable membrane and acts like a filter.</p> <p>Diffusion is the natural movement of particles from an area with lots of particles to an area with fewer particles.</p> <p>In hemodialysis, the dialyzer (mechanical kidney) acts as the semi-permeable membrane.</p> <ul> <li>Blood flows along one side of the membrane and a special dialysis solution called dialysate flows on the other side.</li> <li>The waste products removed from your child's body diffuse, or spread, from the blood (an area with lots of waste products) into the dialysate (an area with no waste products).</li> <li>The substances that the body needs cannot pass through the semi-permeable membrane. These stay in the blood that is returned to your child's body.</li> </ul> <h2>How hemodialysis takes blood from the body and returns it</h2> <p>Blood is taken out and returned through a <a href="/Article?contentid=52&language=English">central venous line</a> or <a href="/Article?contentid=1034&language=English">fistula</a>.</p> <p>The central venous line is a tube that is inserted in your child's body during a minor operation under general anesthetic. The tube is put into the major blood vessels leading to your child's heart and sits at the top of the right side of the heart.</p> <p>A fistula is created by sewing together an artery and a vein in the arm during surgery. Two needles are inserted into your child's arm: one sends blood to the dialyzer for cleaning and another returns the blood to your child's body. Over time, the vein becomes bigger, which creates easier access for the dialysis needles.</p>
HémodialyseHHémodialyseHemodialysisFrenchNephrologyChild (0-12 years);Teen (13-18 years)KidneysCardiovascular systemNon-drug treatmentCaregivers Adult (19+)NA2014-07-30T04:00:00ZElizabeth Piva, RN;Susan Ackerman, RN;SickKids Home Dialysis Program9.0000000000000059.0000000000000426.000000000000Health (A-Z) - ProcedureHealth A-Z<p>Découvrez comment l’hémodialyse élimine les déchets du sang en cas d’insuffisance rénale.</p><p>​​Quand les <a href="https://pie.med.utoronto.ca/htbw/module.html?module=kidney-child">reins</a> sont sains, ils épurent le sang en éliminant les déchets et le liquide superflu et en évacuant ceux-ci de l’organisme par les urines. En cas d’insuffisance rénale, l’hémodialyse prend le relais et remplit la fonction des reins défaillants.</p><p>Pendant l’hémodialyse, du sang est prélevé de l’organisme de l’enfant par un tube. Ce sang passe ensuite dans un rein mécanique appelé dialyseur. Le dialyseur nettoie le sang en éliminant les déchets et le liquide superflu. Le sang retourne ensuite dans l’organisme de l’enfant par un autre tube.</p> <figure><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_Hemodialysis_schematic_FR.jpg" alt="" /><figcaption class="asset-image-caption">Simple illustration of hemodialysis</figcaption> </figure> <p>Une dialyse de ce type peut avoir lieu <a href="/Article?contentid=41&language=French">à domicile</a> ou <a href="/Article?contentid=43&language=French">à l’hôpital</a> et est sans risque, efficace et généralement sans douleur. Elle peut être réalisée plusieurs fois par semaine.<br></p><h2>À retenir</h2> <ul><li>L’hémodialyse fait appel à un rein mécanique appelé dialyseur pour épurer le sang quand les reins ne sont plus en mesure de le faire.</li> <li>Le sang est envoyé dans le dialyseur et en revient par un cathéter veineux central ou une fistule.</li> <li>L’hémodialyse peut avoir lieu à domicile ou à l’hôpital.</li></ul><h2>Comment fonctionne l’hémodialyse?</h2> <p>L’hémodialyse s’appuie sur deux principes :</p> <ul><li>l’osmose;</li> <li>la diffusion.</li></ul> <p>L’osmose est la capacité de l’eau de traverser la paroi d’une cellule. Cette paroi est appelée membrane semi-perméable et agit comme un filtre.</p> <p>La diffusion est le mouvement naturel des particules d’une zone riche en particules vers une zone qui en contient peu.</p> <p>Dans l’hémodialyse, le dialyseur (rein mécanique) joue le rôle de la membrane semi-perméable.</p> <ul><li>Le sang circule d’un côté de la membrane et une solution spéciale de dialyse qu’on appelle dialysat circule de l’autre côté.</li> <li>Les déchets sont éliminés de l’organisme de l’enfant en se déplaçant par diffusion du sang (une zone qui contient beaucoup de déchets) au dialysat (une zone sans déchets).</li> <li>Les substances dont l’organisme a besoin ne peuvent pas traverser la membrane semi-perméable. Elles restent dans le sang qui est renvoyé dans l’organisme de l’enfant.</li></ul> <h2>Pendant l’hémodialyse, comment le sang est-il prélevé et renvoyé dans l’organisme?</h2> <p>Le sang est prélevé et renvoyé par un cathéter veineux central ou une fistule.</p> <p>Le <a href="/Article?contentid=52&language=French">cathéter veineux central​</a> est un tube inséré dans le corps de l’enfant au cours d’une opération mineure réalisée sous anesthésie générale. Le tube est placé au-dessus et à droite du cœur de l’enfant, dans les principaux vaisseaux sanguins qui vont vers le cœur.</p> <p>Une fistule est le résultat d’une intervention chirurgicale qui met en communication une artère et une veine du bras. Deux aiguilles sont insérées dans le bras de l’enfant : la première envoie du sang pour épuration au dialyseur; la seconde renvoie le sang dans le corps de l’enfant. Avec le temps, la veine grossit, ce qui facilite l’accès des aiguilles de dialyse.</p> <h2>À l'hôpital SickKids</h2><p>Si vous voulez vous renseigner davantage sur l’hémodialyse à domicile ou si vous désirez employer cette méthode, veuillez communiquer avec le Programme d’hémodialyse à domicile au 416 813-5895. Le personnel du programme se fera un plaisir de répondre à vos questions ou de vous rencontrer en personne pour déterminer.</p>

 

 

Hemodialysis44.0000000000000HemodialysisHemodialysisHEnglishNephrologyChild (0-12 years);Teen (13-18 years)KidneysCardiovascular systemNon-drug treatmentCaregivers Adult (19+)NA2014-07-30T04:00:00ZElizabeth Piva, RN;Susan Ackerman, RN;SickKids Home Dialysis Program9.0000000000000059.0000000000000426.000000000000Health (A-Z) - ProcedureHealth A-Z<p>Learn how hemodialysis removes waste products from the blood when the kidneys fail.</p><p>Healthy <a href="https://pie.med.utoronto.ca/htbw/module.html?module=kidney-child">kidneys</a> clean the blood by removing waste products and unwanted fluid and flushing them out of the body through urine. When the kidneys fail, hemodialysis takes over the job that they can no longer do.</p><p>During hemodialysis, blood is removed from your child's body through a tube. It then goes to a mechanical kidney called a dialyzer. The dialyzer cleans the blood by removing waste products and unwanted fluid. The blood then returns to your child's body through another tube.</p><p>This type of dialysis can be done <a href="/Article?contentid=41&language=English">at home</a> or <a href="/Article?contentid=43&language=English">in the hospital</a> and is safe, efficient and usually painless. It may be done several times a week.</p> <figure> <img src="https://assets.aboutkidshealth.ca/akhassets/IMD_Hemodialysis_schematic_EN.jpg" alt="" /> <figcaption class="asset-image-caption">Simple illustration of hemodialysis</figcaption> </figure><h2>Key points</h2> <ul> <li>Hemodialysis uses a mechanical kidney, called a dialyzer, to clean the blood when the kidneys can no longer do so.</li> <li>Blood travels to and from the dialyzer through a central venous line or fistula.</li> <li>Hemodialysis can be done at home or in the hospital.</li> </ul><h2>How hemodialysis works</h2> <p>Hemodialysis works on two principles:</p> <ul> <li>osmosis</li> <li>diffusion</li> </ul> <p>Osmosis is the ability of water to pass through the wall of a cell. This wall is called a semi-permeable membrane and acts like a filter.</p> <p>Diffusion is the natural movement of particles from an area with lots of particles to an area with fewer particles.</p> <p>In hemodialysis, the dialyzer (mechanical kidney) acts as the semi-permeable membrane.</p> <ul> <li>Blood flows along one side of the membrane and a special dialysis solution called dialysate flows on the other side.</li> <li>The waste products removed from your child's body diffuse, or spread, from the blood (an area with lots of waste products) into the dialysate (an area with no waste products).</li> <li>The substances that the body needs cannot pass through the semi-permeable membrane. These stay in the blood that is returned to your child's body.</li> </ul> <h2>How hemodialysis takes blood from the body and returns it</h2> <p>Blood is taken out and returned through a <a href="/Article?contentid=52&language=English">central venous line</a> or <a href="/Article?contentid=1034&language=English">fistula</a>.</p> <p>The central venous line is a tube that is inserted in your child's body during a minor operation under general anesthetic. The tube is put into the major blood vessels leading to your child's heart and sits at the top of the right side of the heart.</p> <p>A fistula is created by sewing together an artery and a vein in the arm during surgery. Two needles are inserted into your child's arm: one sends blood to the dialyzer for cleaning and another returns the blood to your child's body. Over time, the vein becomes bigger, which creates easier access for the dialysis needles.</p>https://assets.aboutkidshealth.ca/akhassets/IMD_Hemodialysis_schematic_EN.jpgHemodialysis

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