{"id":3320,"date":"2022-03-15T13:19:34","date_gmt":"2022-03-15T12:19:34","guid":{"rendered":"http:\/\/vet-ecg.ddns.net\/?page_id=3320"},"modified":"2022-03-15T13:19:36","modified_gmt":"2022-03-15T12:19:36","slug":"evolution-rythmique","status":"publish","type":"page","link":"http:\/\/vet-ecg.ddns.net\/index.php\/evolution-rythmique\/","title":{"rendered":"Evolution rythmique"},"content":{"rendered":"

Ce chat pr\u00e9sente \u00e0 l’\u00e9chocardiographie une cardiomyopathie hypertrophique s\u00e9v\u00e8re avec une atrium gauche tr\u00e8s dilat\u00e9 dans lequel sont visualis\u00e9es des volutes de pr\u00e9-thrombose. L’animal , en oed\u00e8me pulmonaire au moment de l’examen, est amaigri et pr\u00e9sente des \u00e9pisodes de lipothymie.<\/p>\n\n\n

\"Tachycardie
Tachycardie sinusale, extra-systole atriale, QRS larges<\/figcaption><\/figure>\n\n\n

Les QRS sont larges et hypervolt\u00e9s avec des ondes T de sens oppos\u00e9 \u00e0 celui des QRS. Une lecture trop rapide pourrait faire penser \u00e0 une tachycardie ventriculaire \u00e0 195 bpm.<\/p>\n

En y regardant de plus pr\u00e8s, et plus particuli\u00e8rement la d\u00e9rivation AVF, on visualise des ondes P d’origine sinusale. De plus, sur la partie gauche du trac\u00e9, on remarque une extra-systole atriale (3e systole en partant de la fin).<\/p>\n

La dur\u00e9e des QRS avoisine les 70 ms, On peut donc conclure qu’il s’agit d’une tachycardie sinusale avec bloc de branche gauche (\u00c2QRS: environ 25\u00b0).<\/p>\n

\u00a0<\/p>\n

\u00a0<\/p>\n

\u00a0<\/p>\n\n

12 heures plus tard, un nouvel ECG est pratiqu\u00e9 et montre cette fois une fibrillation atriale<\/p>\n\n\n

\"Fibrillation
Fibrillation atriale au cours d’une cardiomyopathie hypertrophique<\/figcaption><\/figure>\n\n\n\n\n

La tachycardie sinusale avec bloc de branche gauche s’est transform\u00e9e en fibrillation atriale et le bloc de branche \u00e0 disparu: la largeur des QRS est moinde, leur dur\u00e9e est d’environ 50 ms, ce qui correspond \u00e0 un myocarde tr\u00e8s remodel\u00e9.<\/p>","protected":false},"excerpt":{"rendered":"

Ce chat pr\u00e9sente \u00e0 l’\u00e9chocardiographie une cardiomyopathie hypertrophique s\u00e9v\u00e8re avec une atrium gauche tr\u00e8s dilat\u00e9 dans lequel sont visualis\u00e9es des volutes de pr\u00e9-thrombose. L’animal , en oed\u00e8me pulmonaire au moment de l’examen, est amaigri et pr\u00e9sente des \u00e9pisodes de lipothymie. Les QRS sont larges et hypervolt\u00e9s avec des ondes T de sens oppos\u00e9 \u00e0 celui … Continuer la lecture de Evolution rythmique<\/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-3320","page","type-page","status-publish","hentry"],"yoast_head":"\nEvolution rythmique - Blog d'\u00e9lectrocardiographie v\u00e9t\u00e9rinaire<\/title>\n<meta name=\"description\" content=\"Evolution rythmique chez un chat atteint de cardiomyopathie hypertrophique s\u00e9v\u00e8re. 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