{"id":580,"date":"2025-07-31T13:25:32","date_gmt":"2025-07-31T13:25:32","guid":{"rendered":"https:\/\/cardiocases.com\/?page_id=580"},"modified":"2025-10-07T17:13:17","modified_gmt":"2025-10-07T17:13:17","slug":"programming-of-basic-parameters","status":"publish","type":"page","link":"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/basic-concepts\/crt\/programming-of-basic-parameters\/","title":{"rendered":"Param\u00e8tres de base"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"580\" class=\"elementor elementor-580\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4818e53 e-con-full e-flex e-con e-parent\" data-id=\"4818e53\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-ee71c65 e-con-full e-flex e-con e-child\" data-id=\"ee71c65\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-230171e elementor-widget elementor-widget-heading\" data-id=\"230171e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Param\u00e8tres de base<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d1cf01 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"0d1cf01\" data-element_type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h3&quot;,&quot;h4&quot;,&quot;h5&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;bullets&quot;,&quot;icon&quot;:{&quot;value&quot;:&quot;fas fa-circle&quot;,&quot;library&quot;:&quot;fa-solid&quot;,&quot;rendered_tag&quot;:&quot;&lt;svg class=\\&quot;e-font-icon-svg e-fas-circle\\&quot; viewBox=\\&quot;0 0 512 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;},&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tG\u00e9n\u00e9ralit\u00e9s\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__0d1cf01\" aria-expanded=\"true\" aria-label=\"Ouvrir la table des mati\u00e8res\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__0d1cf01\" aria-expanded=\"true\" aria-label=\"Fermer la table des mati\u00e8res\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__0d1cf01\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d11aea elementor-widget elementor-widget-heading\" data-id=\"4d11aea\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Informations g\u00e9n\u00e9rales<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d558a7 elementor-widget elementor-widget-text-editor\" data-id=\"5d558a7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Les principaux objectifs de la programmation des param\u00e8tres de base de la th\u00e9rapie de resynchronisation cardiaque (TRC) sont a) le maintien d'une capture BiV coh\u00e9rente et b) l'optimisation de la fonction h\u00e9modynamique. Les b\u00e9n\u00e9ficiaires de la TRC souffrent de diverses maladies sous-jacentes. Par cons\u00e9quent, l'optimisation de la TRC doit \u00eatre adapt\u00e9e aux caract\u00e9ristiques de chaque patient et prendre en compte la d\u00e9tection et le traitement de la tachyarythmie ventriculaire.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6fa17b elementor-widget elementor-widget-heading\" data-id=\"c6fa17b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Taux minimal et mode de stimulation<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f1fcc2 elementor-widget elementor-widget-text-editor\" data-id=\"1f1fcc2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Le r\u00e9glage de l'intervalle de stimulation de base influence le pourcentage de stimulation auriculaire. L'oreillette gauche est la seule chambre cardiaque qui ne peut pas \u00eatre stimul\u00e9e directement avec un syst\u00e8me CRT standard, bien que, dans les c\u0153urs d\u00e9faillants, l'oreillette gauche joue un r\u00f4le majeur dans la d\u00e9termination de la pr\u00e9charge du ventricule gauche. L'activation de l'oreillette gauche semble g\u00e9n\u00e9ralement plus longue pendant la stimulation auriculaire (latence auriculaire + d\u00e9lai inter-atrial) que pendant le rythme sinusal. Par cons\u00e9quent, le temps de remplissage de l'oreillette gauche peut \u00eatre raccourci pendant la stimulation auriculaire.\u00a0<\/p><p>En l'absence de dysfonctionnement du n\u0153ud sinusal (SND), la fr\u00e9quence cardiaque (FC) de base doit \u00eatre maintenue lente afin de limiter autant que possible le pourcentage de stimulation auriculaire, de pr\u00e9server l'activation physiologique de l'oreillette gauche et d'\u00e9pargner la batterie. Bien que les modes de stimulation VDD et DDD puissent \u00eatre programm\u00e9s, le mode DDI doit \u00eatre \u00e9vit\u00e9 en l'absence de SND. En pr\u00e9sence d'un SND au repos, qu'il soit endog\u00e8ne ou induit par des m\u00e9dicaments, la stimulation auriculaire est obligatoire. Le mode DDD avec r\u00e9ponse \u00e0 la fr\u00e9quence est pr\u00e9f\u00e9rable (en cas d'incomp\u00e9tence chronotrope) et le mode VDD doit \u00eatre \u00e9vit\u00e9.<\/p><p>Bien qu'il n'y ait pas de consensus concernant une FC minimale applicable \u00e0 tous les patients, une fr\u00e9quence de stimulation de base de 60 bpm est probablement associ\u00e9e \u00e0 un d\u00e9bit cardiaque plus \u00e9lev\u00e9 qu'une fr\u00e9quence de 40 bpm, sans augmenter la consommation d'oxyg\u00e8ne du myocarde. Une FC de repos &gt;70 bpm doit \u00eatre \u00e9vit\u00e9e, bien qu'en pr\u00e9sence d'extrasystoles ventriculaires fr\u00e9quentes ou de TV lente, une augmentation de la FC minimale puisse att\u00e9nuer la charge arythmique et augmenter le taux de stimulation de la BiV. Cependant, ces effets sont g\u00e9n\u00e9ralement temporaires ou seulement partiellement efficaces. Il est \u00e9galement possible de programmer des algorithmes pour r\u00e9duire l'incidence de la fibrillation auriculaire (FA) en augmentant la FC et en for\u00e7ant la stimulation auriculaire. Les b\u00e9n\u00e9fices conf\u00e9r\u00e9s par ces mesures chez les receveurs de syst\u00e8mes CRT restent \u00e0 d\u00e9montrer.<\/p><p>Des algorithmes ont \u00e9t\u00e9 d\u00e9velopp\u00e9s par les fabricants d'appareils pour limiter le pourcentage de stimulation ventriculaire, qui est l'inverse de l'effet recherch\u00e9 par la resynchronisation. Ils peuvent toutefois \u00eatre utiles lorsque la stimulation de la BiV doit \u00eatre interrompue, en cas de d\u00e9placement de la sonde ou chez les patients dont l'\u00e9tat s'est aggrav\u00e9 apr\u00e8s la resynchronisation. Ce type d'algorithme est programmable dans les appareils de CRT fabriqu\u00e9s par Microport CRM-Sorin (Safe-R) ou Abbott (VIP), mais pas par Biotronik (la suppression du Vp sera disponible dans les futurs appareils), Medtronic (MVP) ou Boston Scientific (Rythmiq).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b18872 elementor-widget elementor-widget-heading\" data-id=\"6b18872\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Taux de suivi sup\u00e9rieur<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fad36d elementor-widget elementor-widget-text-editor\" data-id=\"1fad36d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Les caract\u00e9ristiques d\u00e9taill\u00e9es de la fr\u00e9quence de suivi sup\u00e9rieure seront discut\u00e9es dans le paragraphe consacr\u00e9 \u00e0 la programmation pendant l'exercice. Une grande partie des b\u00e9n\u00e9ficiaires de syst\u00e8mes CRT sont en rythme sinusal, avec une conduction AV normale et une r\u00e9ponse chronotrope normale. Par cons\u00e9quent, la fr\u00e9quence de suivi sup\u00e9rieure doit \u00eatre programm\u00e9e juste au-dessus de la fr\u00e9quence sinusale maximale atteinte pendant l'exercice, ce qui permet de pr\u00e9server la stimulation du VB pendant l'exercice et d'emp\u00eacher le d\u00e9veloppement de la p\u00e9riodicit\u00e9 de Wenckebach. La programmation d'une vitesse de poursuite sup\u00e9rieure lente dans les r\u00e9cipients des syst\u00e8mes CRT est une erreur courante, qui entra\u00eene la perte de la stimulation BiV au moment du pic de l'exercice, alors qu'elle est probablement la plus n\u00e9cessaire. La fiabilit\u00e9 des commutateurs de mode actuellement disponibles dans les stimulateurs cardiaques est suffisamment \u00e9lev\u00e9e pour \u00e9liminer le risque de stimulation rapide pendant la fibrillation auriculaire. Par cons\u00e9quent, il n'y a pas de danger \u00e0 fixer la fr\u00e9quence de suivi sup\u00e9rieure \u00e0 150 bpm chez de nombreux patients, en particulier si une perte de stimulation de la BiV est observ\u00e9e pendant l'exercice.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c1617b elementor-widget elementor-widget-heading\" data-id=\"5c1617b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Taux r\u00e9actif<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8327533 elementor-widget elementor-widget-text-editor\" data-id=\"8327533\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Les principes de l'algorithme de r\u00e9ponse \u00e0 la fr\u00e9quence sont d\u00e9taill\u00e9s dans le chapitre consacr\u00e9 \u00e0 la programmation de la CRT pendant l'exercice. Une insuffisance chronotrope spontan\u00e9e ou induite par des m\u00e9dicaments est souvent observ\u00e9e chez les patients souffrant d'insuffisance cardiaque. La programmation d'une fonction sensible \u00e0 la fr\u00e9quence dans ces cas augmente la capacit\u00e9 d'exercice du patient et am\u00e9liore sa qualit\u00e9 de vie. Le mode de stimulation DDDR doit \u00eatre privil\u00e9gi\u00e9 chez les patients dont la fr\u00e9quence cardiaque au pic de l'exercice est &lt;70% du maximum pr\u00e9dit. En revanche, en pr\u00e9sence d&#039;une fonction chronotrope normale, un algorithme sensible \u00e0 la fr\u00e9quence doit \u00eatre \u00e9vit\u00e9, car il peut augmenter inutilement la fr\u00e9quence de stimulation auriculaire, accro\u00eetre la consommation d&#039;oxyg\u00e8ne du myocarde et perturber la fonction h\u00e9modynamique.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc88a47 elementor-widget elementor-widget-heading\" data-id=\"fc88a47\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Commutateur de mode<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a9c923 elementor-widget elementor-widget-text-editor\" data-id=\"0a9c923\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Les patients souffrant d'insuffisance cardiaque pr\u00e9sentent un risque \u00e9lev\u00e9 de d\u00e9velopper des \u00e9pisodes de fibrillation auriculaire. C'est pourquoi une fonction de commutation de mode devrait \u00eatre syst\u00e9matiquement programm\u00e9e. Si le patient est en fibrillation auriculaire, une l\u00e9g\u00e8re augmentation de la fr\u00e9quence cardiaque au repos (70 bpm par exemple) ainsi qu'une r\u00e9activit\u00e9 \u00e0 la fr\u00e9quence augmentent le pourcentage de stimulation de la BiV.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44f5b51 elementor-widget elementor-widget-heading\" data-id=\"44f5b51\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">D\u00e9tection auriculaire et ventriculaire<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53e76e8 elementor-widget elementor-widget-text-editor\" data-id=\"53e76e8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>L'objectif principal de la programmation de l'appareil est d'obtenir un pourcentage de stimulation de la BiV proche de 100%. Par cons\u00e9quent, toute surd\u00e9tection ventriculaire inhibant la stimulation de la BiV doit \u00eatre soigneusement \u00e9limin\u00e9e. La d\u00e9tection ventriculaire doit \u00eatre programm\u00e9e pour \u00e9viter la d\u00e9tection des ondes P et T, ainsi que le double comptage ventriculaire, qui est fr\u00e9quent chez ces patients chez qui les troubles de la conduction sont importants, tout en pr\u00e9servant une d\u00e9tection fiable des \u00e9lectrogrammes ventriculaires, cl\u00e9 du fonctionnement irr\u00e9prochable d'un d\u00e9fibrillateur.<\/p><p>La sous-d\u00e9tection auriculaire peut \u00e9galement r\u00e9duire le pourcentage de stimulation BiV. L'exercice et l'augmentation des mouvements respiratoires sont souvent \u00e0 l'origine d'une d\u00e9tection auriculaire peu fiable. Par cons\u00e9quent, une marge de s\u00e9curit\u00e9 plus importante doit \u00eatre programm\u00e9e que pour la d\u00e9tection dans des conditions de repos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44b0835 elementor-widget elementor-widget-heading\" data-id=\"44b0835\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">D\u00e9tection de la pression ventriculaire gauche dans un d\u00e9fibrillateur<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f0f098 elementor-widget elementor-widget-text-editor\" data-id=\"1f0f098\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>La d\u00e9tection LV n'est pas disponible avec les d\u00e9fibrillateurs Medtronic, Abbott et Microport CRM-Sorin.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Programming of basic parameters Content General information The main objectives of programming the basic settings of cardiac resynchronization therapy (CRT) are a) the maintenance of consistent BiV capture, and b) the optimization of hemodynamic function. CRT recipients suffer from a variety of underlying diseases. Therefore, the optimization of CRT must be tailored to each patient\u2019s [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":23,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-580","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CRT Basic Parameter Programming | Cardiocases<\/title>\n<meta name=\"description\" content=\"CRT basic programming parameters \u2014 LV output, pacing mode, rate response &amp; ECG tracings. 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