{"id":2065,"date":"2019-10-15T10:50:39","date_gmt":"2019-10-15T08:50:39","guid":{"rendered":"http:\/\/vet-ecg.ddns.net\/?page_id=2065"},"modified":"2019-11-10T19:14:06","modified_gmt":"2019-11-10T18:14:06","slug":"troubles-electrolytiques","status":"publish","type":"page","link":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/","title":{"rendered":"Troubles \u00e9lectrolytiques"},"content":{"rendered":"

Les variations de la calc\u00e9mie et de la kali\u00e9mie entrainent des signes \u00e9lectrocardiographiques.<\/p>\n

L’hypercalc\u00e9mie raccourcit la phase 2 du potentiel d’action.<\/p>\n

L’ hyperkali\u00e9mie modifie d’abord la phase 3 (repolarisation).<\/p>\n

A mesure que la kali\u00e9mie s’\u00e9l\u00e8ve,  les phases 1 (d\u00e9polarisation) et 4 (potentiel de repos) sont concern\u00e9es.<\/p>\n

<\/p>\n\n\n

\"potentiel
Les phases du potentiel d’action<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n

Calc\u00e9mie<\/strong><\/h4>\n

Les hypercalc\u00e9mies<\/strong> mod\u00e9r\u00e9es passent souvent inaper\u00e7ues.<\/p>\n

Par contre, les hypercalc\u00e9mies s\u00e9v\u00e8res (my\u00e9lomes) vont sur\u00e9lever le point J (d\u00e9but du segment ST), et raccourcir drastiquement ce segment.<\/p>\n

Les hypocalc\u00e9mies<\/strong> sont tr\u00e8s rarement observ\u00e9es.<\/p>\n

Elles entrainent logiquement un allongement du segment ST et de l’intervalle QT. On les rencontre dans l’hypoparathyro\u00efdie, la t\u00e9tanie puerp\u00e9rale et l’insuffisance r\u00e9nale.<\/p>\n\n\n

<\/p>\n\n\n

Kali\u00e9mie<\/strong><\/h4>\n

L’hyperkali\u00e9mie<\/strong> se rencontre fr\u00e9quemment au cours des syndromes urologiques f\u00e9lins et de la maladie d’ Addison et, dans une moindre mesure, l’insuffisance r\u00e9nale.<\/p>\n

La prise de plusieurs m\u00e9dicaments hyperkali\u00e9miants (IEC, sartans, anti-aldost\u00e9rone) engendre g\u00e9n\u00e9ralement une \u00e9l\u00e9vation mod\u00e9r\u00e9e de celle-ci.<\/p>\n

Les signes \u00e9lectrocardiographiques sont relativement proportionnels \u00e0 la kali\u00e9mie.<\/p>\n

La premi\u00e8re modification concerne l’onde T. Celle-ci devient ample, positive, sym\u00e9trique et pointue.<\/p>\n

Lorsque l’hyperkali\u00e9mie devient s\u00e9v\u00e8re, une bradycardie s’ installe et\u00a0 peut aboutir \u00e0 une dysfonction sinusale (aplatissement, puis disparition de l’onde P)<\/p>\n

Ult\u00e9rieurement, surviennent des troubles de l’automatisme allant jusqu’\u00e0 la paralysie sinusale. Un rythme d’\u00e9chappement assure alors la contraction des ventricules.<\/p>\n

Enfin, lorsque la kali\u00e9mie est extr\u00eame,\u00a0 des troubles de la conduction s\u00e9v\u00e8res apparaissent: blocs AV ou\u00a0 intraventriculaire.\u00a0 Ceux-ci entrainent une forte augmentation de la dur\u00e9e des QRS et menacent le pronostic vital.<\/p>\n

L’ hypokali\u00e9mie<\/strong>, quant \u00e0 elle,\u00a0 fait apparaitre une onde U situ\u00e9e apr\u00e8s l’onde T.<\/p>\n

Par la suite, le segment ST se sous-d\u00e9cale, alors que l’amplitude de l’onde T s’amenuise.<\/p>\n

Les\u00a0 hypokali\u00e9mies se rencontrent au cours des pertes digestives et lors d’hyperaldost\u00e9ronisme (chat)<\/p>\n

\u00a0<\/p>","protected":false},"excerpt":{"rendered":"

Les variations de la calc\u00e9mie et de la kali\u00e9mie entrainent des signes \u00e9lectrocardiographiques. L’hypercalc\u00e9mie raccourcit la phase 2 du potentiel d’action. L’ hyperkali\u00e9mie modifie d’abord la phase 3 (repolarisation). A mesure que la kali\u00e9mie s’\u00e9l\u00e8ve,  les phases 1 (d\u00e9polarisation) et 4 (potentiel de repos) sont concern\u00e9es. Calc\u00e9mie Les hypercalc\u00e9mies mod\u00e9r\u00e9es passent souvent inaper\u00e7ues. Par contre, … Continuer la lecture de Troubles \u00e9lectrolytiques<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2065","page","type-page","status-publish","hentry"],"yoast_head":"\nTroubles \u00e9lectrolytiques - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire<\/title>\n<meta name=\"description\" content=\"Troubles \u00e9lectrolytiques et r\u00e9percussions sur l'ECG. Dyskali\u00e9mie et dyscalc\u00e9mie rencontr\u00e9es en pratique sur les chiens et les chats\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/\",\"url\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/\",\"name\":\"Troubles \u00e9lectrolytiques - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/potentiel-action-1.jpg\",\"datePublished\":\"2019-10-15T08:50:39+00:00\",\"dateModified\":\"2019-11-10T18:14:06+00:00\",\"description\":\"Troubles \u00e9lectrolytiques et r\u00e9percussions sur l'ECG. Dyskali\u00e9mie et dyscalc\u00e9mie rencontr\u00e9es en pratique sur les chiens et les chats\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/#primaryimage\",\"url\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/potentiel-action-1.jpg\",\"contentUrl\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/potentiel-action-1.jpg\",\"width\":319,\"height\":299,\"caption\":\"Les phases du potentiel d'action\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/troubles-electrolytiques\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Troubles \u00e9lectrolytiques\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/#website\",\"url\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/\",\"name\":\"Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire\",\"description\":\"recueil d'ECG de chiens et de chats\",\"publisher\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/#\\\/schema\\\/person\\\/fec4070a47e235fed904fab73cae00b4\"},\"alternateName\":\"\u00e9lectrocardiographie v\u00e9t\u00e9rinaire\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/#\\\/schema\\\/person\\\/fec4070a47e235fed904fab73cae00b4\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/2018\\\/04\\\/Zelda-2-ECG-248.jpg\",\"url\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/2018\\\/04\\\/Zelda-2-ECG-248.jpg\",\"contentUrl\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/2018\\\/04\\\/Zelda-2-ECG-248.jpg\",\"width\":248,\"height\":248,\"caption\":\"admin\"},\"logo\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/2018\\\/04\\\/Zelda-2-ECG-248.jpg\"},\"description\":\"Les trac\u00e9s publi\u00e9s sur ce site sont issus de diff\u00e9rentes cliniques v\u00e9t\u00e9rinaires de Paris et de sa banlieue durant les 10 derni\u00e8res ann\u00e9es. Les ECG r\u00e9alis\u00e9s ont \u00e9t\u00e9 r\u00e9alis\u00e9s sur des chiens et des chats qui ont tous b\u00e9n\u00e9fici\u00e9 d'une \u00e9chocardiographie.\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Troubles \u00e9lectrolytiques - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire","description":"Troubles \u00e9lectrolytiques et r\u00e9percussions sur l'ECG. Dyskali\u00e9mie et dyscalc\u00e9mie rencontr\u00e9es en pratique sur les chiens et les chats","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/","url":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/","name":"Troubles \u00e9lectrolytiques - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire","isPartOf":{"@id":"http:\/\/vet-ecg.ddns.net\/#website"},"primaryImageOfPage":{"@id":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/#primaryimage"},"image":{"@id":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/#primaryimage"},"thumbnailUrl":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/potentiel-action-1.jpg","datePublished":"2019-10-15T08:50:39+00:00","dateModified":"2019-11-10T18:14:06+00:00","description":"Troubles \u00e9lectrolytiques et r\u00e9percussions sur l'ECG. Dyskali\u00e9mie et dyscalc\u00e9mie rencontr\u00e9es en pratique sur les chiens et les chats","breadcrumb":{"@id":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/#primaryimage","url":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/potentiel-action-1.jpg","contentUrl":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/potentiel-action-1.jpg","width":319,"height":299,"caption":"Les phases du potentiel d'action"},{"@type":"BreadcrumbList","@id":"http:\/\/vet-ecg.ddns.net\/index.php\/troubles-electrolytiques\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"http:\/\/vet-ecg.ddns.net\/"},{"@type":"ListItem","position":2,"name":"Troubles \u00e9lectrolytiques"}]},{"@type":"WebSite","@id":"http:\/\/vet-ecg.ddns.net\/#website","url":"http:\/\/vet-ecg.ddns.net\/","name":"Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire","description":"recueil d'ECG de chiens et de chats","publisher":{"@id":"http:\/\/vet-ecg.ddns.net\/#\/schema\/person\/fec4070a47e235fed904fab73cae00b4"},"alternateName":"\u00e9lectrocardiographie v\u00e9t\u00e9rinaire","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"http:\/\/vet-ecg.ddns.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":["Person","Organization"],"@id":"http:\/\/vet-ecg.ddns.net\/#\/schema\/person\/fec4070a47e235fed904fab73cae00b4","name":"admin","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/2018\/04\/Zelda-2-ECG-248.jpg","url":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/2018\/04\/Zelda-2-ECG-248.jpg","contentUrl":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/2018\/04\/Zelda-2-ECG-248.jpg","width":248,"height":248,"caption":"admin"},"logo":{"@id":"http:\/\/vet-ecg.ddns.net\/wp-content\/uploads\/2018\/04\/Zelda-2-ECG-248.jpg"},"description":"Les trac\u00e9s publi\u00e9s sur ce site sont issus de diff\u00e9rentes cliniques v\u00e9t\u00e9rinaires de Paris et de sa banlieue durant les 10 derni\u00e8res ann\u00e9es. Les ECG r\u00e9alis\u00e9s ont \u00e9t\u00e9 r\u00e9alis\u00e9s sur des chiens et des chats qui ont tous b\u00e9n\u00e9fici\u00e9 d'une \u00e9chocardiographie."}]}},"_links":{"self":[{"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/pages\/2065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/comments?post=2065"}],"version-history":[{"count":0,"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/pages\/2065\/revisions"}],"wp:attachment":[{"href":"http:\/\/vet-ecg.ddns.net\/index.php\/wp-json\/wp\/v2\/media?parent=2065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}