{"id":3622,"date":"2025-10-08T18:51:44","date_gmt":"2025-10-08T18:51:44","guid":{"rendered":"https:\/\/cardiocases.com\/?page_id=3622"},"modified":"2026-09-21T15:24:29","modified_gmt":"2026-09-21T15:24:29","slug":"optimisation-des-delais-av-vv-abbott","status":"publish","type":"page","link":"https:\/\/cardiocases.com\/fr\/pacing-defibrillation\/devices-per-company\/abbott\/av-and-vv-delay-optimization-abbott\/","title":{"rendered":"Optimisation des d\u00e9lais AV et VV Abbott"},"content":{"rendered":"\t\t

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Abbott - AV and VV delay optimization<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\tContent\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t
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QuickOpt algorithm<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The QuickOpt\u2122 algorithm optimizes stimulated AV delay, detected AV delay, and interventricular (VV) delay based on the measurement of P wave width, estimated from the atrial EGM (AV delays), and on the measurement of interventricular delays measured in spontaneous rhythm, right ventricular pacing, and left ventricular pacing (VV delay).<\/p>
Four tests are performed automatically:<\/p>
estimation of P wave width<\/li>
measurement of the delay between right and left ventricular activation in spontaneous rhythm<\/li>
measurement of RV-LV conduction time (RV pacing)<\/li>
measurement of LV-RV conduction time (LV pacing)<\/li><\/ul>
\u00a0<\/p>
The optimal post-detection AV delay corresponds to the P wave width + 30 ms if the P wave width > 100 ms and to the P wave width + 60 ms if the P wave width < 100 ms.<\/p>
The post-pacing AV delay is equal to the post-detection AV delay + 50 ms.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t $\"\"$ \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
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Measurement of the P-wave width<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \n\t\t\t\t\t\t\t $\"\"$ \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
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The optimal VV delay is determined using the formula: Spontaneous \u0394V + (tGD \u2013 tDG) ) \/ 2<\/p>
Spontaneous \u0394V: delay between right and left activation in spontaneous rhythm;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \n\t\t\t\t\t\t\t $\"\"$ \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
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tGD: time between LV and RV during left ventricular stimulation;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \n\t\t\t\t\t\t\t $\"\"$ \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
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tDG: time between RV and LV during right ventricular pacing<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \n\t\t\t\t\t\t\t $\"\"$ \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
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Following the completion of these four tests, an optimal program is proposed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t $\"\"$ \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t
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Discover relevant cases<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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