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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

922
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
922
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

239
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
239

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Related Experiment Video

Updated: Sep 6, 2025

Measuring Cardiac Autonomic Nervous System ANS Activity in Children
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A Single-center Experience Comparing First- Versus Second-generation Insertable Cardiac Monitors in Pediatric

Nathan Miller1, Lisa Roelle2, Dean Lorimer2

  • 1Electrophysiology Laboratory, St. Louis Children's Hospital, St. Louis, MO, USA.

The Journal of Innovations in Cardiac Rhythm Management
|June 29, 2022
PubMed
Summary

Advancements in insertable cardiac monitors (ICMs) show second-generation devices are increasingly used in pediatric patients. While first-generation ICMs offered quicker diagnosis, newer devices expand monitoring for inherited arrhythmia syndromes.

Keywords:
Arrhythmiasinherited arrhythmia syndromesinsertable cardiac monitorpalpitationspediatric electrophysiologysyncope

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Area of Science:

  • Cardiology
  • Pediatric Electrophysiology
  • Medical Device Technology

Background:

  • Insertable cardiac monitors (ICMs) have evolved, with second-generation devices offering less invasive implantation.
  • Understanding the differences between first- and second-generation ICMs in pediatric populations is crucial for optimizing patient care.
  • Previous studies have not comprehensively compared pediatric ICM implant characteristics, indications, and diagnostic timelines.

Purpose of the Study:

  • To compare first- and second-generation insertable cardiac monitors (ICMs) in pediatric patients.
  • To analyze differences in implant indications and time to diagnosis between the two ICM generations.
  • To evaluate the evolving role of ICMs in pediatric long-term cardiac monitoring.

Main Methods:

  • Retrospective, single-center chart review of pediatric patients who underwent ICM implantation between 2009 and 2019.
  • Data collected included patient demographics, medical history, implant indications, and time to diagnosis.
  • Comparison between first-generation (surgical pocket) and second-generation (tool-assisted insertion) ICMs.

Main Results:

  • A total of 208 pediatric patients were analyzed; 18% received first-generation ICMs and 82% received second-generation ICMs.
  • Second-generation ICMs showed expanded indications, notably for inherited arrhythmia syndrome (IAS) management (40%) compared to first-generation (5%).
  • Average time to diagnosis was shorter for first-generation ICMs (38 weeks) versus second-generation ICMs (55 weeks).

Conclusions:

  • Second-generation ICMs are increasingly utilized in pediatric patients, reflecting technological advancements and broader application.
  • While first-generation ICMs demonstrated a faster time to diagnosis, second-generation devices facilitate management of complex conditions like IAS.
  • Innovations in ICM technology are expanding their utility for long-term remote monitoring in pediatric cardiology.