{"id":736,"date":"2025-07-31T14:14:18","date_gmt":"2025-07-31T14:14:18","guid":{"rendered":"https:\/\/cardiocases.com\/?page_id=736"},"modified":"2025-11-08T17:00:35","modified_gmt":"2025-11-08T17:00:35","slug":"discrimination-medtronic","status":"publish","type":"page","link":"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/medtronic\/discrimination-medtronic\/","title":{"rendered":"Discrimination Medtronic"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"736\" class=\"elementor elementor-736\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc3151b e-con-full e-flex e-con e-parent\" data-id=\"fc3151b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-fac849a e-con-full e-flex e-con e-child\" data-id=\"fac849a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0b95521 elementor-widget elementor-widget-heading\" data-id=\"0b95521\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Medtronic - Discrimination<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-867beee elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"867beee\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h3&quot;,&quot;h4&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\tContent\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__867beee\" 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__867beee\" 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__867beee\" 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-61e60bd elementor-widget elementor-widget-heading\" data-id=\"61e60bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Introduction<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-345553a elementor-widget elementor-widget-text-editor\" data-id=\"345553a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>When programming an ICD, particular attention should be paid to the risk of inappropriate therapies. Modern ICD offer several advanced criteria, which, alone or combined, can discriminate VT from SVT. The \u201cheart rate\u201d criterion cannot be used safely alone, as its specificity for the diagnosis of ventricular tachyarrhythmias is only 60%, while its sensitivity can be easily increased to 100%. Moreover, the lower the programmed VT zone, the lower its specificity. Without other discrimination criteria, the therapy will be delivered irrespective of the origin of the tachycardia. The VF zone is typically reserved for very high rate and left without other intervening criteria, which are used only in the VT zone for patients susceptible of developing very rapid ventricular rates during SVT. These criteria should be deactivated in patients with fixed complete AV block.\u00a0\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-015d46a elementor-widget elementor-widget-heading\" data-id=\"015d46a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Discrimination in single chamber<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bf2749 elementor-widget elementor-widget-text-editor\" data-id=\"7bf2749\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The discriminating criteria offered by single chamber ICD include sudden onset, stability of the tachycardia cycle length and morphology of the ventricular EGM.<\/p><p>The \u00ab sudden onset \u00bb criterion withholds therapies for tachycardia of gradual onset, and is typically used to prevent inappropriate therapies for sinus tachycardia. The \u00ab stability \u00bb criterion limits the delivery of therapy for irregular tachyarrhythmias in the VT zone and is often used to prevent inappropriate therapy for atrial fibrillation with a rapid ventricular rate, which is usually irregular, whereas it is usually regular during VT. \u201cMorphology\u201d is a matching criterion that compares the EGM during tachycardia with that previously recorded during intrinsic rhythm. It is based on the principle that the ventricular EGM should be identical during a rapidly conducted SVT and during sinus rhythm. It compares dynamically ventricular EGM recorded during all episodes of tachycardia in the VT zone with a template previously recorded. If both EGM are classified as similar, the arrhythmia is diagnosed as \u201csupraventricular\u201d.<\/p><p>\u00a0<\/p><p><strong>Onset<\/strong><\/p><p>Operating details : comparison of an average of the 4 most recent with the average of the 4 previous\u00a0intervals. As long as the onset is classified as gradual, detection is postponed and the event is marked\u00a0as VS.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1de8986 elementor-widget elementor-widget-image\" data-id=\"1de8986\" data-element_type=\"widget\" data-e-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\/2025\/11\/mdtdiscr1.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"mdtdiscr1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0MywidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL21kdGRpc2NyMS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"210\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr1.png\" class=\"attachment-large size-large wp-image-4143\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr1.png 851w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr1-300x79.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr1-768x201.png 768w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr1-18x5.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-6357315 elementor-widget elementor-widget-text-editor\" data-id=\"6357315\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Onset monitor : the device performs all the calculations associated with \u201conset\u201d though does not\u00a0delay the detection.<br \/>Note : the onset criterion applies to VT and FVT via VT during the initial detection ONLY, and NOT in\u00a0redetections.<\/p><p>At onset in the VT zone, the device measures each interval. If the onset is detected as gradual, a) the intervals are classified as VS, b) a \u201cgradual onset\u201d notation appears, and c) the detection is withheld.<\/p><p>\u00a0<\/p><p><strong>Stability<\/strong><\/p><p>Operating details:\u00a0Stability intervenes when the VT event count reaches 3; an interval is classified as unstable if its length\u00a0varies from the 3 previous intervals by a difference greater than the programmed stability interval. If\u00a0the device detects an unstable interval, SVT is detected and the VT event counter is reset to 0.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6557c3e elementor-widget elementor-widget-image\" data-id=\"6557c3e\" data-element_type=\"widget\" data-e-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\/2025\/11\/mdtdiscr4.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"mdtdiscr4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0NCwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL21kdGRpc2NyNC5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"239\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr4.png\" class=\"attachment-large size-large wp-image-4144\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr4.png 885w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr4-300x89.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr4-768x229.png 768w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr4-18x5.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-709b56e elementor-widget elementor-widget-text-editor\" data-id=\"709b56e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Note: the stability criterion applies to VT and FVT via VT during initial detection and\u00a0redetection.<br \/>When the VT event counter reaches 3, the stability criterion is fulfilled.<\/p><p>If the event is classified unstable, a) it is marked as a normal sensed event (VS), b) the VT event counter\u00a0is reset to 0 and starts \u2018Re-Counting\u2019, and c) a &#8220;Stability&#8221; notation appears.<\/p><p>\u00a0<\/p><p><strong>Wavelet<\/strong><\/p><p>Operating details : compares the 8 QRS preceding the detection of a tachycardia with a stored template (reference morphology).<\/p><p>If \u22656 of the last 8 QRS do not match the stored template, VT is detected; if \u22653 of the last 8 QRS match\u00a0the stored template, the VT event counter is reset to 0 and therapy is withheld.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a42f236 elementor-widget elementor-widget-image\" data-id=\"a42f236\" data-element_type=\"widget\" data-e-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\/2025\/11\/mdtdiscr5.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"mdtdiscr5\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0NSwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL21kdGRpc2NyNS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"239\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr5.png\" class=\"attachment-large size-large wp-image-4145\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr5.png 869w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr5-300x90.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr5-768x230.png 768w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr5-18x5.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-4ad291a elementor-widget elementor-widget-text-editor\" data-id=\"4ad291a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Programmable settings : On, Off, Monitor<br \/>Match threshold : 40, 43, \u2026, 70, \u2026, 97%<br \/>Auto sampling : On (sampling every 17 min), Off<\/p><p>Wavelet rules :<\/p><ol><li>Template sampling and conditions<br \/>The template can be automatically sampled:<\/li><\/ol><ul><li style=\"list-style-type: none;\"><ul><li>Sampling of 6 normal sinus rhythm complexes and creation of a template based on their\u00a0average. The automatic template is validated by a comparison of the 6 waveforms among\u00a0each other (at least 4 out of 6 must match)<\/li><li>Template confirmation : one waveform is sampled every 10 s and compared to the stored\u00a0template over 700 s. If \u226570 out of 100 waveforms match the template, it is confirmed.<\/li><li>Regular verification of the template quality : samples a waveform every 17 min (~1000 s)\u00a0and compares to the stored template.<\/li><\/ul><\/li><\/ul><ol start=\"2\"><li>Wavelet sampling trigger<br \/>Wavelet starts to sample if:<\/li><\/ol><ul><li style=\"list-style-type: none;\"><ul><li>The VT event count = 2<\/li><li>The VF event count = 3<br \/>Wavelet begins its comparison with the stored template 2 events later.<\/li><\/ul><\/li><\/ul><ol start=\"3\"><li>Wavelet interruption<br \/>Episode detection:<\/li><\/ol><ul><li style=\"list-style-type: none;\"><ul><li>\u00a0\u22656 of the last 8 waveforms do not match to the stored template<\/li><li>High rate time out<br \/>Episode end : rate &gt;VT interval<\/li><\/ul><\/li><\/ul><p>\u00a0<\/p><p>Wavelet applies only when the median V-V interval is \u2265SVT limit. Wavelet uses EGM 2 : HVA to HVB\u00a0(Can to RV coil) source. If the printed peak-to-peak amplitude of the R wave is &lt;3 mV, a different EGM\u00a02 source must be chosen. If the base-to-peak amplitude is &gt;6 mV, consider increasing the EGM 2 range.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad22d1a elementor-widget elementor-widget-heading\" data-id=\"ad22d1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Discrimination in double\/triple chamber<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e092df elementor-widget elementor-widget-text-editor\" data-id=\"2e092df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Operating details:<\/strong><\/p><p>PERMANENT and SIMULTANEOUS scrutiny of 6 criteria. When the number of intervals (NID) to detect VT or VF is reached, the following diagnostic rules are applied.<\/p><p>PR Logic operates only on initial detection and not on redetection.<\/p><p>PR Logic operates only for rates below the programmed SVT limit.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0a7354 elementor-widget elementor-widget-image\" data-id=\"b0a7354\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt1.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDEzNCwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0MS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"619\" height=\"319\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt1.png\" class=\"attachment-large size-large wp-image-4134\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt1.png 619w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt1-300x155.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt1-18x9.png 18w\" sizes=\"(max-width: 619px) 100vw, 619px\" \/>\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-f586d77 elementor-widget elementor-widget-image\" data-id=\"f586d77\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt2.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDEzNSwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0Mi5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"471\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt2.png\" class=\"attachment-large size-large wp-image-4135\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt2.png 616w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt2-300x229.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt2-16x12.png 16w\" sizes=\"(max-width: 616px) 100vw, 616px\" \/>\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-061c4a5 elementor-widget elementor-widget-text-editor\" data-id=\"061c4a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Pattern\u00a0<\/strong><\/p><p>Operating details : PR Logic:<\/p><ul><li>Analyzes beat-to-beat in real time<\/li><li>Looks for the position and sequence of P waves among 3 consecutives R waves<\/li><li>Assigns a code to each observed sequence<\/li><li>Compares the codes with 19 different pre-stored patterns to identify a potential SVT<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cd0750 elementor-widget elementor-widget-image\" data-id=\"6cd0750\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt3.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt3\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDEzNiwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0My5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"678\" height=\"176\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt3.png\" class=\"attachment-large size-large wp-image-4136\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt3.png 678w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt3-300x78.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt3-18x5.png 18w\" sizes=\"(max-width: 678px) 100vw, 678px\" \/>\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-3657f90 elementor-widget elementor-widget-image\" data-id=\"3657f90\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt4.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDEzNywidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0NC5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"528\" height=\"224\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt4.png\" class=\"attachment-large size-large wp-image-4137\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt4.png 528w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt4-300x127.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt4-18x8.png 18w\" sizes=\"(max-width: 528px) 100vw, 528px\" \/>\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-b77e1ef elementor-widget elementor-widget-text-editor\" data-id=\"b77e1ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>AF Detection<\/strong><\/p><p>Goal: identify atrial fibrillation or dual-chamber tachycardia.<br \/>Algorithm:<\/p><ul><li>\u22652 atrial signals within 1 RR interval =&gt; Counter +1<\/li><li>No atrial signal within 1 RR interval =&gt; Counter \u20131<\/li><li>1 atrial signal within 1 RR interval =&gt; Counter \u20131 if RR stable<br \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 =&gt; Counter +0 if RR unstable<\/li><\/ul><p>The AF criterion is initially satisfied when the AF counter is \u22656. If the AF criterion is satisfied the therapy\u00a0is not delivered as long as the counter remains \u22655. The AF counter is limited to a maximal value of 10.<br \/><br \/>The AF evidence counter analysis determines that an atrial tachyarrhythmia is present if the counter\u00a0reaches a predefined threshold. Satisfied first at 6, remains satisfied at \u22655, max 10, min 0.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cbc730 elementor-widget elementor-widget-image\" data-id=\"6cbc730\" data-element_type=\"widget\" data-e-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\/2025\/11\/mdtdiscr9.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"mdtdiscr9\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0NiwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL21kdGRpc2NyOS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"796\" height=\"230\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr9.png\" class=\"attachment-large size-large wp-image-4146\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr9.png 796w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr9-300x87.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr9-768x222.png 768w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr9-18x5.png 18w\" sizes=\"(max-width: 796px) 100vw, 796px\" \/>\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-cb29cbd elementor-widget elementor-widget-text-editor\" data-id=\"cb29cbd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Far-field R wave detection<\/strong><\/p><p>Operating details: PR Logic identifies a far-field R wave (FFRW) if it simultaneously detects:<\/p><ul style=\"font-size: 16px;\"><li>Successive sequences of &#8220;short-long&#8221; AA intervals with \u226530 ms differences<\/li><li>A &lt;60 ms AV OR &lt;160 ms VA interval<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1040d93 elementor-widget elementor-widget-image\" data-id=\"1040d93\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt5.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt5\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDEzOCwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0NS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"428\" height=\"146\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt5.png\" class=\"attachment-large size-large wp-image-4138\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt5.png 428w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt5-300x102.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt5-18x6.png 18w\" sizes=\"(max-width: 428px) 100vw, 428px\" \/>\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-912739d elementor-widget elementor-widget-text-editor\" data-id=\"912739d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In order to recognize a rhythm as ST with FFRW, it has to be present:<\/p><ul><li>in 10 of the last 12 intervals in Gem DR devices<\/li><li>Starting with Gem III DR and later models, it was decreased to 4 of the last 12 intervals<\/li><\/ul><p>\u00a0<\/p><p><strong>AV dissociation<\/strong><\/p><p>Operating details: AV-dissociation is confirmed if 1 of the following is present in \u22654 of the last 8\u00a0V-V intervals:<\/p><ul><li>No atrium<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ca3094 elementor-widget elementor-widget-image\" data-id=\"3ca3094\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt6.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt6\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDEzOSwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0Ni5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"586\" height=\"258\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt6.png\" class=\"attachment-large size-large wp-image-4139\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt6.png 586w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt6-300x132.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt6-18x8.png 18w\" sizes=\"(max-width: 586px) 100vw, 586px\" \/>\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-4a1c7ae elementor-widget elementor-widget-text-editor\" data-id=\"4a1c7ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Ventricular regularity<\/strong><\/p><p>Purpose: Identification of atrial fibrillation.<br \/>Conducted AF =&gt; Irregular ventricular rhythm<br \/>Ventricular Tachycardia =&gt; Regular rhythm<br \/><br \/>Operating details:<br \/>Calculates the proportion of the 2 most common intervals within the last 18 V-V intervals.<\/p><ul><li>Regularity &gt;75% = regular rhythm<\/li><li>Regularity \u226450% = irregular rhythm<\/li><\/ul><p>Note: Only intervals \u2265240 ms in duration are used in this analysis.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d57cee9 elementor-widget elementor-widget-image\" data-id=\"d57cee9\" data-element_type=\"widget\" data-e-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\/2025\/11\/mdtdiscr12.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"mdtdiscr12\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0NywidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL21kdGRpc2NyMTIucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"313\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr12.png\" class=\"attachment-large size-large wp-image-4147\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr12.png 864w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr12-300x117.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr12-768x300.png 768w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr12-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-34ed434 elementor-widget elementor-widget-text-editor\" data-id=\"34ed434\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dual chamber algorithms interaction for an initial detection in the VT zone<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b3735b elementor-widget elementor-widget-image\" data-id=\"3b3735b\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt7.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0MCwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0Ny5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"685\" height=\"506\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt7.png\" class=\"attachment-large size-large wp-image-4140\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt7.png 685w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt7-300x222.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt7-16x12.png 16w\" sizes=\"(max-width: 685px) 100vw, 685px\" \/>\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-0231e96 elementor-widget elementor-widget-text-editor\" data-id=\"0231e96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Single chamber algorithms interaction for an initial detection in the VT zone<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2af895e elementor-widget elementor-widget-image\" data-id=\"2af895e\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt8.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt8\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0MSwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0OC5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"414\" height=\"553\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt8.png\" class=\"attachment-large size-large wp-image-4141\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt8.png 414w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt8-225x300.png 225w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt8-9x12.png 9w\" sizes=\"(max-width: 414px) 100vw, 414px\" \/>\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-0bcd551 elementor-widget elementor-widget-heading\" data-id=\"0bcd551\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Discrimination smart-shock<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0549b6f elementor-widget elementor-widget-text-editor\" data-id=\"0549b6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Smart-Shock was implemented in the latest generation devices and includes the algorithms T-wave discrimination, RV lead noise discrimination, LIA combined PR Logic + wavelet and discrimination +.<\/p><p><strong>Combined PR Logic and\u00a0Wavelet<\/strong><\/p><p>Purpose: combines morphology and A-V pattern recognition to better discriminate all SVT in dual\u00a0and triple chambers devices.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca6996c elementor-widget elementor-widget-image\" data-id=\"ca6996c\" data-element_type=\"widget\" data-e-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\/2025\/11\/mdtdiscr26.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"mdtdiscr26\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0OCwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL21kdGRpc2NyMjYucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"485\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr26.png\" class=\"attachment-large size-large wp-image-4148\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr26.png 904w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr26-300x182.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr26-768x466.png 768w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/mdtdiscr26-18x12.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-0d1ac5e elementor-widget elementor-widget-text-editor\" data-id=\"0d1ac5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Confirmation +<\/strong><\/p><p>This algorithm:<\/p><ol><li>Confirms the heart rhythm remains fast immediately after the delivery of ATP or before a first shock.<\/li><li>Diverts a non-committed therapy before completion of the capacitor charge if the tachycardia ends\u00a0spontaneously only for the first shock.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a906ee elementor-widget elementor-widget-image\" data-id=\"8a906ee\" data-element_type=\"widget\" data-e-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\/2025\/11\/icd_discrimination_medt10.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"icd_discrimination_medt10\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDE0MiwidXJsIjoiaHR0cHM6XC9cL2NhcmRpb2Nhc2VzLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ljZF9kaXNjcmltaW5hdGlvbl9tZWR0MTAucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"590\" height=\"240\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt10.png\" class=\"attachment-large size-large wp-image-4142\" alt=\"\" srcset=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt10.png 590w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt10-300x122.png 300w, https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/11\/icd_discrimination_medt10-18x7.png 18w\" sizes=\"(max-width: 590px) 100vw, 590px\" \/>\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>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Medtronic &#8211; Discrimination Content Introduction When programming an ICD, particular attention should be paid to the risk of inappropriate therapies. Modern ICD offer several advanced criteria, which, alone or combined, can discriminate VT from SVT. The \u201cheart rate\u201d criterion cannot be used safely alone, as its specificity for the diagnosis of ventricular tachyarrhythmias is only [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":49,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-736","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Medtronic ICD SVT\/VT Discrimination | Cardiocases<\/title>\n<meta name=\"description\" content=\"Medtronic ICD discrimination \u2014 PR Logic, Wavelet, morphology &amp; real ECG tracings. For electrophysiologists.\" \/>\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\/medtronic\/discrimination-medtronic\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Medtronic ICD SVT\/VT Discrimination | Cardiocases\" \/>\n<meta property=\"og:description\" content=\"Medtronic ICD discrimination \u2014 PR Logic, Wavelet, morphology &amp; real ECG tracings. 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