{"id":5403,"date":"2016-11-10T11:58:59","date_gmt":"2016-11-10T11:58:59","guid":{"rendered":"https:\/\/medicoweb.com\/main\/hera-ddd-biventricolare\/"},"modified":"2020-02-20T09:34:05","modified_gmt":"2020-02-20T08:34:05","slug":"hera-ddd-biventricolare","status":"publish","type":"page","link":"https:\/\/medicoweb.com\/main\/en\/hera-ddd-biventricolare\/","title":{"rendered":"Hera (DDD-Biventricular)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3302 size-full\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_ddd.jpg\" alt=\"\" width=\"134\" height=\"150\" \/><\/p>\n<h6 style=\"text-align: right;\">Hera (DDD-Biventricular) <a><br \/>\n<\/a><a href=\"https:\/\/medicoweb.com\/main\/en\/legenda\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" title=\"ELETTROGRAMMA INTRACAVITARIO INTEGRATO \/ INTEGRATED INTRACARDIAC ELECTROGRAM\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/iecg_icona.png\" alt=\"\" width=\"45\" height=\"28\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" title=\"IMPEDENZA TRANS VALVOLARE \/ TRANS VALVULAR IMPEDANCE\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/tvi_icona.png\" alt=\"\" width=\"45\" height=\"28\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" title=\"STIMOLAZIONE BIVENTRICOLARE \/ BIVENTRICULAR STIMULATION\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/biv_icona.png\" alt=\"BIVENTRICULAR\" width=\"45\" height=\"28\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" title=\"SENSORE ACCELEROMETRICO \/ ACCELEROMETRIC SENSOR\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/sensore_accelerometrico_icona.png\" alt=\"\" width=\"45\" height=\"28\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" title=\"TECNOLOGIA A MICROPROCESSORE \/ PROCESSOR TECHNOLOGY\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/processore_icona.png\" alt=\"\" width=\"45\" height=\"28\" \/><\/a><\/h6>\n<h3 style=\"text-align: right;\"><\/h3>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #6a7075;\">Hemodynamic optimization of cardiac resynchronization therapy <\/span><\/p>\n<hr \/>\n<h3>TVI signal display by real-time telemetry, in RV or LV configuration.<br \/>\nTVI signal processing, with waveform averaging, analysis and on-screen display<\/h3>\n<p>TVI in RV configuration is the trans-valvular impedance derived between endocardial electrodes positioned in right atrium and ventricle. The RV-TVI increases in systole and decreases in diastole, following the time-course of RV contraction and relaxation.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3317 size-full\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_vv_eng.jpg\" alt=\"\" width=\"644\" height=\"370\" srcset=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_vv_eng.jpg 644w, https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_vv_eng-300x172.jpg 300w\" sizes=\"auto, (max-width: 644px) 100vw, 644px\" \/><\/p>\n<p>TVI signal amplitude and morphology reflect the mechanical performance of the heart.<br \/>\nThe comparison of averaged TVI waveforms recorded as a function of the VV delay indicates the best stimulation timing.<br \/>\nThe LV-TVI is the impedance derived between right atrium and the cardiac vein containing the LV pacing lead. The LV-TVI decreases in systole and increases in diastole. The diastolic rise back to baseline outlines the progress of LV relaxation.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3313 size-full\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_tvi_confronto_eng.jpg\" alt=\"\" width=\"644\" height=\"370\" srcset=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_tvi_confronto_eng.jpg 644w, https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_tvi_confronto_eng-300x172.jpg 300w\" sizes=\"auto, (max-width: 644px) 100vw, 644px\" \/><\/p>\n<p>The lag between RV- and LV-TVI waveforms reflects the interventricular desynchronization. The stimulation timing should be aimed at the best synchronization of RV- and LV-TVI signals.<\/p>\n<hr \/>\n<h3>High flexibility in biventricular pacing with device autoregulation<\/h3>\n<p>Sensing and pacing parameters setting in 3 independent chambers, with the optional application of an interventricular delay and selection of the ventricle to be stimulated first. If required, pacing in the 2nd ventricle can be inhibited by electrical sensing on the corresponding channel. This allows a safety Hisian stimulation. The pacemaker is able, in fact, to provide a back-up stimulus in the right ventricle apex, in case of Hisian ineffective stimulation.<\/p>\n<hr \/>\n<h3>Ejection check after ventricular pacing function with automatic adjustment of pacing energy in case of capture loss<\/h3>\n<hr \/>\n<h3>Ejection check after ventricular sensing algorithm with an automatic safety pacing in case of external interferences<\/h3>\n<hr \/>\n<h3>Long-term comparison of ventricular mechanics to monitor the CRT effects on the pump function<\/h3>\n<p>In patients with heart failure is essential to monitor the resynchronization therapy effects . To this end, in case of significant decay of hemodynamic performance an appropriate warning will be visible to the user on the programmer\u2019s screen.<\/p>\n<hr \/>\n<h3>Tachyarrhythmic episodes can be correctly and exhaustively assessed thanks to the synergy between iECG (electrical information) and TVI (hemodynamic information)<\/h3>\n<p>Supraventricular and ventricular tachycardias can be easily distinguished based on the different iECG pattern.<br \/>\nTVI provides information on the presence of hemodynamic activity and the reliability of ventricular mechanic performance.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3311 size-full\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_svt_eng.jpg\" alt=\"\" width=\"644\" height=\"193\" srcset=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_svt_eng.jpg 644w, https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_svt_eng-300x90.jpg 300w\" sizes=\"auto, (max-width: 644px) 100vw, 644px\" \/><\/p>\n<p>In case of SVT, the ventricular component of the iECG is a fast waveform showing the same essential features as the signal recorded in sinus rhythm. Regular TVI fluctuation indicates that the pump function is preserved.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3315 size-full\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_vt_eng.jpg\" alt=\"\" width=\"644\" height=\"193\" srcset=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_vt_eng.jpg 644w, https:\/\/medicoweb.com\/main\/wp-content\/uploads\/hera_vt_eng-300x90.jpg 300w\" sizes=\"auto, (max-width: 644px) 100vw, 644px\" \/><\/p>\n<p>In case of VT, the iECG shows a wide ventricular complex, clearly different from the signal associated with the conduction on the His-Purkinje system. Hemodynamically tolerated VTs feature a reduced, but stable, TVI fluctuation; in contrast, the TVI signal is markedly depressed or totally absent if the pump function is not reliable.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p align=\"left\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-4629 alignleft\" src=\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/icona_supporto.png\" alt=\"\" width=\"45\" height=\"45\" \/><span style=\"color: #0575d2;\"><span style=\"font-size: 10pt;\"><em>For more information or to get technical support on our products please <\/em><\/span><a title=\"Contatti\" href=\"https:\/\/medicoweb.com\/main\/en\/contacts\"><span style=\"font-size: 10pt;\"><strong>CONTACT US<\/strong> &gt;&gt;<\/span><\/a><\/span><\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"text-align: center; font-size: 16px;\"> <a title=\"Products\" href=\"https:\/\/medicoweb.com\/main\/en\/products\"><strong>Products<\/strong><\/a> | <a title=\"Technology\" href=\"https:\/\/medicoweb.com\/main\/en\/technology\"><strong>Technology<\/strong><\/a> | <a title=\"Support\" href=\"https:\/\/medicoweb.com\/main\/en\/support\"><strong>Support<\/strong><\/a> | <a title=\"Contacts\" href=\"https:\/\/medicoweb.com\/main\/en\/contacts\"><strong>Contacts<\/strong><\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hera (DDD-Biventricular) &nbsp; &nbsp; Hemodynamic optimization of cardiac resynchronization therapy TVI signal display by real-time telemetry, in RV or LV configuration. TVI signal processing, with waveform averaging, analysis and on-screen display TVI in RV configuration is the trans-valvular impedance derived&hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5403","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hera (DDD-Biventricular) - MEDICO S.R.L.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/medicoweb.com\/main\/en\/hera-ddd-biventricolare\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hera (DDD-Biventricular) - MEDICO S.R.L.\" \/>\n<meta property=\"og:description\" content=\"Hera (DDD-Biventricular) &nbsp; &nbsp; Hemodynamic optimization of cardiac resynchronization therapy TVI signal display by real-time telemetry, in RV or LV configuration. 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