尽管植入式心脏监测器尺寸大幅减小，但仍保持准确的长期传感能力。
Maintaining Accurate Long-Term Sensing Ability Despite Significant Size Reduction of Implantable Cardiac Monitors.
作者信息
Lortz Julia, Varnavas Varnavas, WEIßENBERGER Wilko, Erbel Raimund, Reinsch Nico
机构信息
Department of Cardiology, West-German Heart and Vascular Center, University Hospital Essen, Essen, Germany.
Department of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center, University Hospital Essen, Essen, Germany.
出版信息
Pacing Clin Electrophysiol. 2016 Dec;39(12):1344-1350. doi: 10.1111/pace.12977. Epub 2016 Dec 7.
BACKGROUND
The Reveal LINQ™ implantable cardiac monitor (ICM; Medtronic, Minneapolis, MN, USA) is obviously smaller than its precursor (the Reveal XT™), but little is known about its long-term safety. Here, we investigated the long-term R-wave sensing reliability of the Reveal LINQ™ ICM.
METHODS
We analyzed the sensing quality of the Reveal LINQ™ ICM over time between March 2014 and January 2015.
RESULTS
A total of 30 patients underwent Reveal LINQ™ implantation. The main reason for implantation was unexplained syncope (60%). We evaluated a total of 305.8 patient-months (median, 10.7 months) of R-wave sensing quality. A comparison of baseline and follow-up R-wave sensing values revealed no difference (0.401 mV ± 0.244 mV vs 0.447 mV ± 0.323 mV; P = 0.225).
CONCLUSIONS
The consistent detection of events is an important safety feature of an ICM and linked to secure R-wave sensing. Despite the noticeable size reduction, the Reveal LINQ™ ICM retains reliable sensing quality over time.
背景
Reveal LINQ™植入式心脏监测器（ICM；美敦力公司，美国明尼阿波利斯）明显小于其前身（Reveal XT™），但其长期安全性鲜为人知。在此，我们研究了Reveal LINQ™ ICM的长期R波感知可靠性。
方法
我们分析了2014年3月至2015年1月期间Reveal LINQ™ ICM随时间变化的感知质量。
结果
共有30例患者接受了Reveal LINQ™植入。植入的主要原因是不明原因晕厥（60%）。我们总共评估了305.8患者-月（中位数为10.7个月）的R波感知质量。基线和随访R波感知值的比较显示无差异（0.401 mV±0.244 mV对0.447 mV±0.323 mV；P = 0.225）。
结论
事件的持续检测是ICM的一项重要安全特性，与可靠的R波感知相关。尽管尺寸显著减小，但Reveal LINQ™ ICM随时间推移仍保持可靠的感知质量。
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