{"id":3334,"date":"2022-04-07T17:52:45","date_gmt":"2022-04-07T15:52:45","guid":{"rendered":"http:\/\/vet-ecg.ddns.net\/?page_id=3334"},"modified":"2022-04-07T18:36:34","modified_gmt":"2022-04-07T16:36:34","slug":"faisceau-accessoire","status":"publish","type":"page","link":"http:\/\/vet-ecg.ddns.net\/index.php\/faisceau-accessoire\/","title":{"rendered":"Faisceau accessoire"},"content":{"rendered":"\n
\"Tachycardie
Tachycardie supraventriculaire chez un jeune golden retriever<\/figcaption><\/figure>\n\n\n

A l’occasion de la consultation vaccinale d’ un golden retriever de 18 mois en bon \u00e9tat g\u00e9n\u00e9ral, une tachycardie est d\u00e9tect\u00e9e au st\u00e9thoscope\u00a0 et donne lieu \u00e0 un enregistrement \u00e9lectrocardiographique et ult\u00e9rieurement \u00e0 une \u00e9chocardiographie.<\/p>\n

On note plusieurs anomalies sur ce trac\u00e9: tout d’abord une amplitude consid\u00e9rable des QRS (R = 4,6 mV en D2 mais l’amplitude de toutes les d\u00e9flexions est augment\u00e9e, P = 0,77 mV et T = 2 mV).<\/p>\n

Les QRS sont fins, les intervalles RR sont r\u00e9guliers (400 ms, correspondant \u00e0 une fr\u00e9quence d’environ 150 bpm). L’arythmie respiratoire n’est plus perceptible.<\/p>\n

La morphologie des QRS pr\u00e9sente un aspect inhabituel (rR’) en AVF.<\/p>\n

L’intervalle PQ est court, environ 55 ms, ce qui n’est gu\u00e8re compatible avec un influx d’origine sinusale.<\/p>\n

Par ailleurs, le segment PQ (qui d\u00e9bute \u00e0 la fin de l’onde P et se termine au d\u00e9but de l’onde Q) est oblique quasi inexistant.<\/p>\n

Ce trac\u00e9 \u00e9voque une tachycardie jonctionnelle. Celle-ci est bien tol\u00e9r\u00e9e.<\/p>\n

L’\u00e9chographie n’a mis aucune anomalie cardiaque en \u00e9vidence.<\/p>\n

Un deuxi\u00e8me ECG est propos\u00e9 une dizaine de jours plus tard:<\/p>\n

\u00a0<\/p>\n\n\n

\"Onde
Onde delta sur un rythme jonctionnel<\/figcaption><\/figure>\n\n\n

Cette fois, l’animal n’est plus en tachycardie au moment de l’enregistrement. La fr\u00e9quence cardiaque est de 105 bpm. On note cependant toujours un hypervoltage des QRS (trac\u00e9 enregistr\u00e9 en 5 mm\/mV).<\/p>\n

L’intervalle PR est court et le pied de la branche ascendante de l’onde R est emp\u00e2t\u00e9 (bien visible en D2).<\/p>\n

Cet emp\u00e2tement de la base de l’onde R correspond \u00e0 l’onde delta qui est l’expression de la portion de ventricule d\u00e9polaris\u00e9 par le faisceau de fibres. La suite de la d\u00e9polarisation ventriculaire se fait par les voies de conduction habituelles.<\/p>\n

Quelques minutes apr\u00e8s cet enregistrement, l’animal \u00e9tait de nouveau  en tachycardie.<\/p>\n

Ces tachycardies paroxystiques associ\u00e9es \u00e0 un faisceau de conduction r\u00e9alise un syndrome de Wolff-Parkinson-White.<\/p>\n

<\/p>\n

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

A l’occasion de la consultation vaccinale d’ un golden retriever de 18 mois en bon \u00e9tat g\u00e9n\u00e9ral, une tachycardie est d\u00e9tect\u00e9e au st\u00e9thoscope\u00a0 et donne lieu \u00e0 un enregistrement \u00e9lectrocardiographique et ult\u00e9rieurement \u00e0 une \u00e9chocardiographie. On note plusieurs anomalies sur ce trac\u00e9: tout d’abord une amplitude consid\u00e9rable des QRS (R = 4,6 mV en D2 … Continuer la lecture de Faisceau accessoire<\/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-3334","page","type-page","status-publish","hentry"],"yoast_head":"\nFaisceau accessoire - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire<\/title>\n<meta name=\"description\" content=\"Tachycardie supraventriculaire paroxystique \u00e0 PR court et emp\u00e2tement de la partie initiale de l'onde R (onde delta)\" \/>\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\/faisceau-accessoire\/\" \/>\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\\\/faisceau-accessoire\\\/\",\"url\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/\",\"name\":\"Faisceau accessoire - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/faisceau-1-999x1024.jpg\",\"datePublished\":\"2022-04-07T15:52:45+00:00\",\"dateModified\":\"2022-04-07T16:36:34+00:00\",\"description\":\"Tachycardie supraventriculaire paroxystique \u00e0 PR court et emp\u00e2tement de la partie initiale de l'onde R (onde delta)\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/#primaryimage\",\"url\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/faisceau-1.jpg\",\"contentUrl\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/wp-content\\\/uploads\\\/faisceau-1.jpg\",\"width\":2000,\"height\":2051},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/index.php\\\/faisceau-accessoire\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"http:\\\/\\\/vet-ecg.ddns.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Faisceau accessoire\"}]},{\"@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. 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