In-office insertion of a miniaturized insertable cardiac monitor: Results from the Reveal LINQ In-Office 2 randomized study

John D. Rogers, Prashanthan Sanders, Christopher Piorkowski, M. Rizwan Sohail, Rishi Anand, Karl Crossen, Farhat S. Khairallah, Rachelle E. Kaplon, Kurt Stromberg, Robert C. Kowal

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Background Recent miniaturization of an insertable cardiac monitor (ICM) may make it possible to move device insertion from a hospital to office setting. However, the safety of this strategy is unknown. Objectives The primary objective was to compare the safety of inserting the Reveal LINQ ICM in an office vs a hospital environment. Ancillary objectives included summarizing device- and procedure-related adverse events and responses to a physician questionnaire. Methods Five hundred twenty-one patients indicated for an ICM were randomized (1:1 ratio) to undergo ICM insertion in a hospital or office environment at 26 centers in the United States in the Reveal LINQ In-Office 2 study ( identifier NCT02395536). Patients were followed for 90 days. Results ICM insertion was successful in all 482 attempted patients (office: 251; hospital: 231). The untoward event rate (composite of unsuccessful insertion and ICM- or insertion-related complications) was 0.8% (2 of 244) in the office and 0.9% (2 of 227) in the hospital (95% confidence interval, −3.0% to 2.9%; 5% noninferiority: P < .001). In addition, adverse events occurred during 2.5% (6 of 244) of office and 4.4% (10 of 227) of hospital insertions (95% confidence interval [office minus inhospital rates], −5.8% to 1.9%; 5% noninferiority: P < .001). Physicians indicated that for procedures performed in an office vs a hospital, there were fewer delays >15 minutes (16% vs 35%; P < .001) and patient response was more often “very positive.” Physicians considered the office location “very convenient” more frequently than the hospital location (85% vs 27%; P < .001). Conclusion The safety profile for the insertion of the Reveal LINQ ICM is excellent irrespective of insertion environment. These results may expand site of service options for LINQ insertion.

Original languageEnglish (US)
Pages (from-to)218-224
Number of pages7
JournalHeart rhythm
Issue number2
StatePublished - Feb 1 2017


  • Adverse event
  • Complication
  • Insertable cardiac monitor
  • Office
  • Reveal LINQ
  • Safety

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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