![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/pm_iris_vdd_mr.jpg\")
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![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/iecg_icona.png\" "\\"ELETTROGRAMMA")
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/tvi_icona.png\" "\\"IMPEDENZA")
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/vdd_icona.png\" "\\"STIMOLAZIONE")
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/processore_icona.png\" "\\"TECNOLOGIA")
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/sensore_accelerometrico_icona.png\" "\\"SENSORE")
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/ermes_deo_icona.png\" "\\"CONTROLLO")
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/mri_icona.png\" "\\"MR")
<\/a><\/h6>\n<\/p>\n
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When atrio-ventricular conduction is lost, unstable or too slow, restoring the physiologic relationship between the activity of the two chambers is the therapeutic goal. The pacemaker must detect the intrinsic atrial depolarization and pace the ventricle with the proper delay after each sensing event.<\/p>\n If the pathology does not require atrial stimulation, the implantation of a single-pass AV lead is the most convenient solution. The lead is endowed with a ventricular dipole at the distal <\/p>\n Medico has been devoted to the development and optimization of single-lead VDD systems since the \u201880s, when this stimulation technique was introduced in the clinical practice, playing an important role in the diffusion of VDD pacing all around the world. The main and exclusive feature of all single-pass lead models manufactured by Medico is the 30 mm wide atrial dipole, which has proved a superior tool in floating sensing.<\/p>\n When the floating dipole is found along the central axis of the atrium, at maximum distance from any wall, two electrodes spaced The atrial signal of PHYMOS single-pass leads is remarkably stable even in the most challenging conditions. At 5 years follow-up, regular VDD pacing is maintained in over 95% of patients, with 95% mean AV synchronization <\/p><\/blockquote>\n The VDD system by Medico includes the PHYMOS 44 MRI tetrapolar single-pass lead and the pacemaker Iris VDD MR, ensuring an advanced pacing therapy thanks to many special functions.<\/p>\n ATRIAL TACHYARRHYTHMIA RECOGNITION:<\/strong> EJECTION CONFIRMATION AFTER VENTRICULAR PACING OR SENSING:<\/strong> VENTRICULAR PACING REDUCTION:<\/strong> REMOTE CONTROL BY MEANS OF \u201cERMES\u201d COMMUNICATING SYSTEM:<\/strong> SURVEILLANCE OF HEMODYNAMIC STABILITY:<\/strong> <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n Products<\/strong><\/a>\u00a0|\u00a0Technology<\/strong><\/a>\u00a0|\u00a0Support<\/strong><\/a>\u00a0|\u00a0Contacts<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Iris VDD MR (VDDR) OVER 30 YEAR SUCCESS IN THE THERAPY OF CONDUCTION BLOCK THE FIRST VDD MRI SYSTEM AVAILABLE FOR CLINICAL USE LEARN MORE ABOUT: Single Lead VDD Pacing|Integrated intracardiac electrogram Trans Valvular Impedance |MRI |Mobile remote… <\/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-7272","page","type-page","status-publish","hentry"],"yoast_head":"\n![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/pacing_vdd_icona.png\")
Single Lead VDD Pacing<\/a><\/strong>|Integrated intracardiac electrogram<\/a><\/strong>
\nTrans Valvular Impedance<\/a><\/strong> |MRI<\/a><\/strong> |Mobile remote monitoring<\/a><\/strong><\/p>\n
\nWHY JUST ONE LEAD ?<\/h3>\n
AVB with sinus rhythm and chronotropic competence >>> VDD or DDD pacing<\/h5>\n
\nend and a \u201cfloating\u201d proximal dipole, performing atrial sensing at a distance from the myocardium (single-lead VDD pacing).<\/p>\n\n
A single-pass AV lead is the most convenient solution<\/span>
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/tracciato.jpg\")
<\/h3>\n<\/blockquote>\nAdvantages of the single-pass AV lead vs. a DDD system<\/h4>\n
\n
Advantages vs. a VVI system<\/h4>\n
\n
\nVDD SYSTEMS ARE NOT ALL THE SAME<\/h3>\n
\nThe specific commitment to VDD technology and the experience acquired with more than 100,000 implants, many of which with very long follow-up, make Medico an established leader in this field.<\/p>\n\n
More than 100.000 implants<\/span><\/h3>\n<\/blockquote>\n
\nFLOATING SENSING WITH PHYMOS SINGLE-PASS LEADS<\/h3>\n
![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/dipolo_atriale_30mm_ita.jpg\")
<\/p>\n\n
atrial dipole of 30 mm<\/span><\/h3>\n<\/blockquote>\n
\nby 30 mm simultaneously record the negative and positive peaks of their unipolar electrograms, resulting in the best possible differential signal.<\/em><\/p>\n
\nThis largely explains the clinical success well documented by several scientific publications.<\/p>\n
\nLONG-TERM GLOBAL SAFETY<\/h3>\n
\nratio. The low pacing threshold and reduced rheobase and chronaxie featured by chronic
\nimplants show the high efficiency of ventricular stimulation.<\/p>\n\n
5 YEARS Follow-up duration
\n95% OF IMPLANTS regular VDD
\n95% OF PLACED CYCLES atrium-driven stimulation<\/span><\/h3>\n
\nINNOVATION WITH CONSISTENCY<\/h3>\n
\nquick reaction to PACs, upper-rate with pseudo-Wenckebach algorithm, mode switch to VVI or VVIR in the presence of persistent high atrial rate, with automatic tachyarrhythmia recording through a special electrogram (iECG), which can discriminate supraventricular from ventricular tachycardias.<\/p>\n
\nbased on the assessment of transvalvular impedance (TVI), which increases in systole if ventricular volume decreases.
\nIt allows autoregulation of pacing energy and prevention of false-inhibition induced by electromagnetic interference or myopotentials.<\/p>\n![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/tracciato_iecg_tvi_registrato.jpg\")
iECG and TVI recorded during atrial tachycardia. The arrows indicate the P waves.
\nTVI fluctuation demonstrates effective hemodynamics.<\/em><\/p>\n
\nin case of paroxysmal AVB or 2nd degree blocks with tolerated conduction ratio, the pacemaker can stop ventricular stimulation as long as the intrinsic rhythm\u00a0is present and stable.<\/p>\n
\na pocket telemetric device connected to internet through a smartphone or a PC; it can be used with Iris pacemaker only.<\/p>\n
\nthe TVI signal averaged over a programmable number of cardiac cycles is stored and compared along the time.
\nRelevant waveform modifications can indicate a change in ventricular mechanics.<\/p>\n
\n![\"\"](\"https:\/\/medicoweb.com\/main\/wp-content\/uploads\/icona_supporto.png\")
The products shown on this site are those currently in production. For more information or to get technical support on our products please\u00a0CONTACT US<\/strong> >><\/a><\/em><\/span><\/span><\/p>\n
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