An Engineering Perspective of External Cardiac Loop Recorder: A Systematic Review

Table 2

ILR & ELR products available.

Device/company	Mode	Expected monitoring duration	Max continuous recording period
Reveal Plus 9526/Medtronic	Implantable	14 months	—
Reveal DX/Medtronic	Implantable	3 years	42 min
Reveal XT/Medtronic	Implantable	3 years	42 min
Reveal LINQ/Medtronic	Implantable	3 years	—
Sleuth/Transoma	Implantable	28 months	630 min
Confirm DM2100/St. Jude	Implantable	3 years	48 min (147 episodes)
Confirm DM 2102/St. Jude	Implantable	3 years	48 min (147 episodes)
MCOT/CardioNet	External	Few weeks	21-day continuous monitoring
LifeStar ACT/LifeWatch	External	Few weeks	21-day retrievable monitoring
LifeStar/LifeWatch	External	Few weeks	10 min
eVolution/eCardio	External	Few weeks	30 min
3300 BT/Vitaphone	External	Few weeks	20 min
V-PATCH/Medical System	External	Few weeks	30 h
King of the Heart/Instrumedics	External	Few weeks	6 min
SpiderFlash/Sorin	External	Few weeks	Several hours
Cardiocall/Reynolds Esaote	External	Few weeks	18 min
Super/I-Cardia	External	Depends on patient compliance	2 recordings
Cardio PAL/Medicomp	External	Depends on patient compliance	—
SEEQ MCT/Medtronics	External	30 days	—
Piix NUVANT MCT/Corventis	External	7 days	—
HCG801/Omron	External	30 seconds can be made when symptoms occur	30 sec window indication, 125 MB memory required
SEER 1000/GE Healthcare	External	24 h or 48 h or 3 days (three modes are available)	Nonremovable digital memory
SEER Light/GE Healthcare	External	24 h (48 h for SEER Light extent)	32 MB memory required