{"id":3656,"date":"2025-10-08T19:01:02","date_gmt":"2025-10-08T19:01:02","guid":{"rendered":"https:\/\/cardiocases.com\/?page_id=3656"},"modified":"2026-01-02T12:21:14","modified_gmt":"2026-01-02T12:21:14","slug":"av-delay-pmt-refractory-periods-boston-scientific","status":"publish","type":"page","link":"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/","title":{"rendered":"AV delay, PMT, refractory periods Boston Scientific"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"3656\" class=\"elementor elementor-3656\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-39e2aee e-con-full e-flex e-con e-parent\" data-id=\"39e2aee\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d3399e elementor-widget elementor-widget-heading\" data-id=\"6d3399e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span style=\"font-size: 2rem\">Boston Scientific - <\/span>D\u00e9lai AV, TRE, p\u00e9riodes r\u00e9fractaires<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-444c642 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"444c642\" 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__444c642\" 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__444c642\" 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__444c642\" 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-7db232a elementor-widget elementor-widget-heading\" data-id=\"7db232a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">P\u00e9riode r\u00e9fractaire auriculaire<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f3d310 elementor-widget elementor-widget-text-editor\" data-id=\"8f3d310\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>P\u00e9riode r\u00e9fractaire auriculaire apr\u00e8s un \u00e9v\u00e9nement d\u00e9tect\u00e9 dans l'oreillette<\/strong><\/p><p>La p\u00e9riode r\u00e9fractaire auriculaire est la p\u00e9riode de temps apr\u00e8s un \u00e9v\u00e9nement auriculaire d\u00e9tect\u00e9 pendant laquelle d'autres \u00e9v\u00e9nements auriculaires d\u00e9tect\u00e9s ne d\u00e9clenchent pas de cycles de chronom\u00e9trage ou n'inhibent pas la stimulation auriculaire.<\/p><ul><li>85 ms (30 ms de r\u00e9fraction absolue, 40 ms de fen\u00eatre de bruit, 15 ms de r\u00e9fraction absolue)<\/li><li>les \u00e9v\u00e9nements r\u00e9fractaires absolus ne sont pas d\u00e9tect\u00e9s ou marqu\u00e9s<\/li><li>les bruits sont per\u00e7us mais pas marqu\u00e9s<\/li><\/ul><p>\u00a0<\/p><p><strong>R\u00e9fractaire auriculaire apr\u00e8s un \u00e9pisode de rythme auriculaire<\/strong><\/p><p>La p\u00e9riode r\u00e9fractaire auriculaire est le laps de temps qui suit un \u00e9v\u00e9nement de stimulation auriculaire et pendant lequel d'autres \u00e9v\u00e9nements auriculaires d\u00e9tect\u00e9s ne d\u00e9clenchent pas de cycles de synchronisation ou n'inhibent pas la stimulation auriculaire.<\/p><ul><li>150 ms (110 ms de r\u00e9fraction absolue, 40 ms de fen\u00eatre de bruit)<\/li><li>Les \u00e9v\u00e9nements r\u00e9fractaires absolus ne sont pas d\u00e9tect\u00e9s ou marqu\u00e9s et les \u00e9v\u00e9nements bruyants sont marqu\u00e9s comme [AS].<\/li><\/ul><p>\u00a0<\/p><p><strong>Fen\u00eatres de suppression de l'oreillette en chambre transversale<\/strong><\/p><p>Chaque fen\u00eatre d'obturation de la chambre transversale peut \u00eatre programm\u00e9e \u00e0 une valeur fixe ou \u00e0 SMART.<\/p><p>Le SMART Blanking est con\u00e7u pour favoriser la d\u00e9tection en raccourcissant la p\u00e9riode de suppression, tout en rejetant les \u00e9v\u00e9nements inter-chambres en ajustant automatiquement la sensibilit\u00e9 de la mani\u00e8re suivante :<\/p><ul><li>raccourcissement de la p\u00e9riode de blanc \u00e0 un r\u00e9fractaire absolu (15 ms pour A-blank apr\u00e8s V-Sense, et 37,5 ms pour A-Blank apr\u00e8s V-Pace)<\/li><li>l'\u00e9limination de la partie bruit de la fen\u00eatre de suppression<\/li><li>augmentation du r\u00e9glage de l'AGC pour \u00e9viter la surd\u00e9tection en champ lointain de l'\u00e9v\u00e9nement dans la chambre oppos\u00e9e ; l'AGC est port\u00e9 \u00e0 3\/8 de la moyenne de cr\u00eate actuelle<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94573a2 elementor-widget elementor-widget-image\" data-id=\"94573a2\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"pm_19_situations_periodes_refractaires_9\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjYyMywidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNlwvMDFcL3BtXzE5X3NpdHVhdGlvbnNfcGVyaW9kZXNfcmVmcmFjdGFpcmVzXzkucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"582\" height=\"252\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png\" class=\"attachment-large size-large wp-image-6623\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png 582w, https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9-300x130.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9-18x8.png 18w\" sizes=\"(max-width: 582px) 100vw, 582px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e48b0d elementor-widget elementor-widget-text-editor\" data-id=\"6e48b0d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>La p\u00e9riode r\u00e9fractaire atriale post-ventriculaire (PRAPV<\/strong><\/p><p>La PVARP est une p\u00e9riode programmable apr\u00e8s un \u00e9v\u00e9nement ventriculaire stimul\u00e9 ou d\u00e9tect\u00e9 pendant laquelle les \u00e9v\u00e9nements auriculaires d\u00e9tect\u00e9s ne d\u00e9clenchent pas de cycles de synchronisation ou n'inhibent pas la stimulation auriculaire. La PVARP peut emp\u00eacher le suivi d'\u00e9v\u00e9nements auriculaires r\u00e9trogrades initi\u00e9s dans le ventricule qui pourraient d\u00e9clencher la PMT dans un dispositif \u00e0 double chambre programm\u00e9 en mode de suivi.<\/p><ul><li>la section initiale de la PVARP est la p\u00e9riode de suppression crois\u00e9e (compos\u00e9e d'une fen\u00eatre r\u00e9fractaire absolue et d'une fen\u00eatre de bruit), suivie de la p\u00e9riode r\u00e9fractaire fixe<\/li><li>les \u00e9v\u00e9nements qui tombent dans la fen\u00eatre r\u00e9fractaire absolue du blanking de la chambre transversale ne sont pas d\u00e9tect\u00e9s ou marqu\u00e9s<\/li><li>les \u00e9v\u00e9nements qui tombent dans la fen\u00eatre de bruit sont marqu\u00e9s comme [AS] ; il n'y a pas de fen\u00eatre de bruit pour la suppression SMART<\/li><li>les \u00e9v\u00e9nements dans les cas r\u00e9fractaires fixes sont marqu\u00e9s comme (AS), (AF), ou (PAC)<\/li><li>bien que les \u00e9v\u00e9nements d\u00e9tect\u00e9s dans la fen\u00eatre r\u00e9fractaire fixe du PVARP ne d\u00e9clenchent pas de cycles de chronom\u00e9trage, ils sont pris en compte dans les comptes d'entr\u00e9e de l'ATR, AFR, et sont inclus dans les compteurs\/histogrammes<\/li><\/ul><p>\u00a0<\/p><p><strong>PVARP dynamique<\/strong><\/p><p>La programmation de la PVARP dynamique ne raccourcit pas la p\u00e9riode de suppression de la chambre transversale, mais seulement la p\u00e9riode r\u00e9fractaire fixe. La PVARP diminue de fa\u00e7on lin\u00e9aire entre la limite inf\u00e9rieure de la vitesse et la vitesse maximale de suivi, sur la base d'une moyenne mobile des quatre derniers intervalles V-V.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-722d749 elementor-widget elementor-widget-heading\" data-id=\"722d749\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">P\u00e9riode r\u00e9fractaire ventriculaire<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14bb0f8 elementor-widget elementor-widget-text-editor\" data-id=\"14bb0f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>RV r\u00e9fractaire apr\u00e8s un \u00e9v\u00e9nement d\u00e9tect\u00e9 par le RV<\/strong><\/p><p>Le temps r\u00e9fractaire RV est la p\u00e9riode de temps apr\u00e8s un \u00e9v\u00e9nement d\u00e9tect\u00e9 RV pendant laquelle des \u00e9v\u00e9nements RV d\u00e9tect\u00e9s suppl\u00e9mentaires ne d\u00e9clenchent pas de cycles de chronom\u00e9trage ou n'inhibent pas la stimulation ventriculaire et ne sont pas inclus dans les compteurs.<\/p><ul><li>135 ms (50 ms r\u00e9fractaire absolu, 40 ms fen\u00eatre de bruit, 45 ms r\u00e9fractaire absolu)<\/li><li>les \u00e9v\u00e9nements r\u00e9fractaires absolus ne sont pas d\u00e9tect\u00e9s ou marqu\u00e9s et les \u00e9v\u00e9nements bruyants sont d\u00e9tect\u00e9s<\/li><\/ul><p>\u00a0<\/p><p><strong>RV r\u00e9fractaire apr\u00e8s un \u00e9v\u00e9nement RV-paced<\/strong><\/p><p>RVRP est une p\u00e9riode programmable pendant laquelle les \u00e9v\u00e9nements ventriculaires droits qui suivent les \u00e9v\u00e9nements rythm\u00e9s par le ventricule droit ne d\u00e9clenchent pas de cycle de chronom\u00e9trage, n'inhibent pas la stimulation ventriculaire et ne sont pas pris en compte dans les compteurs.<\/p><ul><li>la section initiale du RVRP est r\u00e9fractaire fixe, suivie d'une fen\u00eatre de bruit de 40 ms<\/li><li>les \u00e9v\u00e9nements dans le r\u00e9fractaire fixe ne sont pas d\u00e9tect\u00e9s ou marqu\u00e9s et les \u00e9v\u00e9nements de bruit sont marqu\u00e9s comme [RVS].<\/li><\/ul><p>\u00a0<\/p><p><strong>RVRP dynamique<\/strong><\/p><p>L'utilisation du RVRP dynamique permet de maintenir la fen\u00eatre de d\u00e9tection puisque le RVRP se raccourcit lorsque la fr\u00e9quence ventriculaire augmente en raison du suivi de l'oreillette ou de la stimulation par capteur. Le RVRP diminuera de fa\u00e7on lin\u00e9aire \u00e0 mesure que la fr\u00e9quence augmente, de la limite inf\u00e9rieure de la fr\u00e9quence \u00e0 la fr\u00e9quence maximale de suivi, et il est bas\u00e9 sur l'intervalle V-V pr\u00e9c\u00e9dent.<\/p><p>\u00a0<\/p><p><strong>Vide RV apr\u00e8s stimulation A<\/strong><\/p><ul><li>r\u00e9glage nominal : 65 ms (les 40 derni\u00e8res ms constituent la fen\u00eatre de bruit)<\/li><\/ul><p>Il n'y a pas de suppression de la chambre transversale ventriculaire pour un \u00e9v\u00e9nement d\u00e9tect\u00e9 au niveau auriculaire.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06d269d elementor-widget elementor-widget-image\" data-id=\"06d269d\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_6.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"pm_19_situations_periodes_refractaires_v_6\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjYyMCwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNlwvMDFcL3BtXzE5X3NpdHVhdGlvbnNfcGVyaW9kZXNfcmVmcmFjdGFpcmVzX3ZfNi5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"332\" height=\"109\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_6.png\" class=\"attachment-large size-large wp-image-6620\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_6.png 332w, https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_6-300x98.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_6-18x6.png 18w\" sizes=\"(max-width: 332px) 100vw, 332px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97359ba elementor-widget elementor-widget-text-editor\" data-id=\"97359ba\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Fen\u00eatre de bruit ventriculaire apr\u00e8s stimulation auriculaire<\/strong><\/p><p>Il n'y a pas de fen\u00eatre de stimulation de s\u00e9curit\u00e9 apr\u00e8s la suppression ventriculaire dans les appareils Boston Scientific, mais il y a une fen\u00eatre de bruit qui peut \u00eatre red\u00e9clench\u00e9e.<\/p><ul><li>lorsqu'un \u00e9v\u00e9nement est d\u00e9tect\u00e9 dans la partie bruit d'une fen\u00eatre de suppression, l'\u00e9v\u00e9nement n'est pas utilis\u00e9 pour la synchronisation ou la d\u00e9tection<\/li><li>est marqu\u00e9 par un marqueur entre parenth\u00e8ses [VS] et n'a g\u00e9n\u00e9ralement pas de valeur d'intervalle.<\/li><li>si le signal bruyant est continu, la fen\u00eatre de bruit sera red\u00e9clench\u00e9e tant que le signal bruyant est pr\u00e9sent (ou jusqu'\u00e0 ce que l'intervalle de stimulation s'arr\u00eate) pour aider \u00e0 supprimer toute nouvelle d\u00e9tection du bruit.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92e7385 elementor-widget elementor-widget-image\" data-id=\"92e7385\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_7.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"pm_19_situations_periodes_refractaires_v_7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjYxOSwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNlwvMDFcL3BtXzE5X3NpdHVhdGlvbnNfcGVyaW9kZXNfcmVmcmFjdGFpcmVzX3ZfNy5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"671\" height=\"264\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_7.png\" class=\"attachment-large size-large wp-image-6619\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_7.png 671w, https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_7-300x118.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_v_7-18x7.png 18w\" sizes=\"(max-width: 671px) 100vw, 671px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a914b44 elementor-widget elementor-widget-heading\" data-id=\"a914b44\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">La tachycardie r\u00e9entrante \u00e9lectronique (TRE)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bae3298 elementor-widget elementor-widget-text-editor\" data-id=\"bae3298\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>PVARP apr\u00e8s PVC prolonge automatiquement la PVARP programm\u00e9e pendant un cycle cardiaque apr\u00e8s un PVC.<\/li><li>les \u00e9v\u00e9nements auriculaires d\u00e9tect\u00e9s au cours de ce PVARP seront d\u00e9tect\u00e9s mais ne d\u00e9clencheront pas un cycle de synchronisation ou n'inhiberont pas la stimulation auriculaire.<\/li><li>La PVC est d\u00e9finie comme un \u00e9v\u00e9nement d\u00e9tect\u00e9 par la VR qui suit un \u00e9v\u00e9nement rythm\u00e9 ou d\u00e9tect\u00e9 par la VR sans \u00e9v\u00e9nement auriculaire interm\u00e9diaire.<\/li><li>les \u00e9v\u00e9nements auriculaires d\u00e9tect\u00e9s et stimul\u00e9s ainsi que les \u00e9v\u00e9nements auriculaires r\u00e9fractaires sont accept\u00e9s en tant qu'\u00e9v\u00e9nements auriculaires interm\u00e9diaires<\/li><li>La PVARP apr\u00e8s un PVC ne se produira pas plus fr\u00e9quemment que tous les autres cycles cardiaques, puisque les cycles de synchronisation sont r\u00e9initialis\u00e9s apr\u00e8s un PVC.<\/li><\/ul><p>\u00a0<\/p><p><strong>Algorithme de terminaison PMT<\/strong><\/p><p>L'algorithme PMT est appliqu\u00e9 si<\/p><ul><li>16 cycles VP-AS cons\u00e9cutifs se produisent \u00e0 la vitesse de poursuite maximale (VPMT-AS)<\/li><li>les intervalles V-A associ\u00e9s ne varient pas de plus de 32 ms ; l'intervalle V-A de chaque \u00e9v\u00e9nement est compar\u00e9 au premier intervalle V-A de 16 intervalles ; si l'un des 15 intervalles V-A suivants diff\u00e8re de plus de 32 ms du premier intervalle V-A, le dispositif remet le compte \u00e0 z\u00e9ro et continue \u00e0 surveiller la PMT<\/li><\/ul><p>Lorsque la PMT est d\u00e9clar\u00e9e, la PVARP est \u00e9tendue \u00e0 500 ms pendant un cycle suivant le 16e rythme ventriculaire. Une EGM est enregistr\u00e9e dans le journal des arythmies lorsque la PMT est activ\u00e9e et qu'un \u00e9pisode de PMT est d\u00e9clar\u00e9.<\/p><ul><li>bien qu'il n'y ait pas de v\u00e9ritable compteur PMT, le nombre d'\u00e9v\u00e9nements PMT peut \u00eatre \u00e9valu\u00e9 par le nombre associ\u00e9 aux \u00e9pisodes PMT dans le journal d'arythmie.<\/li><li>les num\u00e9ros d'\u00e9v\u00e9nements s'incr\u00e9mentent continuellement m\u00eame si les \u00e9v\u00e9nements ne restent pas en m\u00e9moire<\/li><li>jusqu'\u00e0 trois \u00e9pisodes d\u00e9taill\u00e9s peuvent \u00eatre stock\u00e9s avec les EGM associ\u00e9es<\/li><li>jusqu'\u00e0 cinq \u00e9v\u00e9nements PMT au total peuvent \u00eatre r\u00e9pertori\u00e9s<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Boston Scientific &#8211; AV delay, PMT, refractory periods Content Atrial refractory period Atrial Refractory Period after Atrial-sensed Event Atrial refractory is the time period after an atrial-sensed event when additional sensed-atrial events do not initiate timing cycles or inhibit atrial pacing. 85 ms (30 ms absolute refractory, 40 ms noise window, 15 ms absolute refractory) [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":51,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-3656","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>Boston Scientific AV Delay PMT &amp; Refractory | Cardiocases<\/title>\n<meta name=\"description\" content=\"Boston Scientific pacemaker AV delays, PMT prevention &amp; refractory periods \u2014 programming with ECG tracings.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Boston Scientific AV Delay PMT &amp; Refractory | Cardiocases\" \/>\n<meta property=\"og:description\" content=\"Boston Scientific pacemaker AV delays, PMT prevention &amp; refractory periods \u2014 programming with ECG tracings.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/\" \/>\n<meta property=\"og:site_name\" content=\"Cardiocases\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-02T12:21:14+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/\",\"url\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/\",\"name\":\"Boston Scientific AV Delay PMT & Refractory | Cardiocases\",\"isPartOf\":{\"@id\":\"https:\/\/cardiocases.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png\",\"datePublished\":\"2025-10-08T19:01:02+00:00\",\"dateModified\":\"2026-01-02T12:21:14+00:00\",\"description\":\"Boston Scientific pacemaker AV delays, PMT prevention & refractory periods \u2014 programming with ECG tracings.\",\"breadcrumb\":{\"@id\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#primaryimage\",\"url\":\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png\",\"contentUrl\":\"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/cardiocases.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pacing &amp; Defibrillation\",\"item\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Devices per company\",\"item\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Boston Scientific\",\"item\":\"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"AV delay, PMT, refractory periods Boston Scientific\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/cardiocases.com\/#website\",\"url\":\"https:\/\/cardiocases.com\/\",\"name\":\"Cardiocases\",\"description\":\"Real cardiac device traces, pacemaker &amp; ICD learning \u2014 built by electrophysiologists\",\"publisher\":{\"@id\":\"https:\/\/cardiocases.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/cardiocases.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/cardiocases.com\/#organization\",\"name\":\"Cardiocases\",\"url\":\"https:\/\/cardiocases.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/cardiocases.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/07\/cardiocases_logo.png\",\"contentUrl\":\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/07\/cardiocases_logo.png\",\"width\":1755,\"height\":499,\"caption\":\"Cardiocases\"},\"image\":{\"@id\":\"https:\/\/cardiocases.com\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.linkedin.com\/company\/cardiocases\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Boston Scientific AV Delay PMT & Refractory | Cardiocases","description":"Boston Scientific pacemaker AV delays, PMT prevention & refractory periods \u2014 programming with ECG tracings.","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":"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/","og_locale":"fr_FR","og_type":"article","og_title":"Boston Scientific AV Delay PMT & Refractory | Cardiocases","og_description":"Boston Scientific pacemaker AV delays, PMT prevention & refractory periods \u2014 programming with ECG tracings.","og_url":"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/","og_site_name":"Cardiocases","article_modified_time":"2026-01-02T12:21:14+00:00","og_image":[{"url":"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/","url":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/","name":"Boston Scientific AV Delay PMT & Refractory | Cardiocases","isPartOf":{"@id":"https:\/\/cardiocases.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#primaryimage"},"image":{"@id":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#primaryimage"},"thumbnailUrl":"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png","datePublished":"2025-10-08T19:01:02+00:00","dateModified":"2026-01-02T12:21:14+00:00","description":"Boston Scientific pacemaker AV delays, PMT prevention & refractory periods \u2014 programming with ECG tracings.","breadcrumb":{"@id":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#primaryimage","url":"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png","contentUrl":"http:\/\/cardiocases.com\/wp-content\/uploads\/2026\/01\/pm_19_situations_periodes_refractaires_9.png"},{"@type":"BreadcrumbList","@id":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/av-delay-pmt-refractory-periods-boston-scientific\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/cardiocases.com\/"},{"@type":"ListItem","position":2,"name":"Pacing &amp; Defibrillation","item":"https:\/\/cardiocases.com\/pacing-defibrillation\/"},{"@type":"ListItem","position":3,"name":"Devices per company","item":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/"},{"@type":"ListItem","position":4,"name":"Boston Scientific","item":"https:\/\/cardiocases.com\/pacing-defibrillation\/devices-per-company\/boston-scientific\/"},{"@type":"ListItem","position":5,"name":"AV delay, PMT, refractory periods Boston Scientific"}]},{"@type":"WebSite","@id":"https:\/\/cardiocases.com\/#website","url":"https:\/\/cardiocases.com\/","name":"Cardiocases","description":"Real cardiac device traces, pacemaker &amp; ICD learning \u2014 built by electrophysiologists","publisher":{"@id":"https:\/\/cardiocases.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cardiocases.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/cardiocases.com\/#organization","name":"Cardiocases","url":"https:\/\/cardiocases.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cardiocases.com\/#\/schema\/logo\/image\/","url":"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/07\/cardiocases_logo.png","contentUrl":"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/07\/cardiocases_logo.png","width":1755,"height":499,"caption":"Cardiocases"},"image":{"@id":"https:\/\/cardiocases.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/company\/cardiocases\/"]}]}},"_links":{"self":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/pages\/3656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/comments?post=3656"}],"version-history":[{"count":0,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/pages\/3656\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/pages\/51"}],"wp:attachment":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/media?parent=3656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}