1. Volume 14, Issue 7, Pages e55-e96 (July 2017)
2017 ISHNE-HRS expert consensus statement on ambulatory ECG and external cardiac monitoring/telemetry 
Jonathan S. Steinberg, MD, Niraj Varma, MD, PhD, Iwona Cygankiewicz, MD, PhD, Peter Aziz, MD, Paweł Balsam, MD, Adrian Baranchuk, MD, Daniel J. Cantillon, MD, Polychronis Dilaveris, MD, PhD, Sergio J. Dubner, MD, Nabil El-Sherif, MD, Jaroslaw Krol, MD, Malgorzata Kurpesa, MD, PhD, Maria Teresa La Rovere, MD, Suave S. Lobodzinski, PhD, DrSc, Emanuela T. Locati, MD, PhD, Suneet Mittal, MD, Brian Olshansky, MD, Ewa Piotrowicz, MD, PhD, Leslie Saxon, MD, Peter H. Stone, MD, Larisa Tereshchenko, MD, PhD, Gioia Turitto, MD, Neil J. Wimmer, MD, Richard L. Verrier, PhD, Wojciech Zareba, MD, PhD, Ryszard Piotrowicz, MD, PhD 
Heart Rhythm 
Volume 14, Issue 7, Pages e55-e96 (July 2017)
DOI: /j.hrthm
Copyright © 2017 International Society for Holter and Noninvasive Electrocardiology, Heart Rhythm Society, and Wiley Periodicals, Inc. Terms and Conditions

2. Figure 1
Types of AECG monitors currently available in clinical practice. (A) Holter, event, and loop monitoring; (B) patch-type extended Holter and ambulatory telemetry monitoring AECG, ambulatory external electrocardiographic; ECG, electrocardiographic. Figure illustration by Craig Skaggs.
Reproduced with permission from Mittal et al. (2011).
Heart Rhythm  , e55-e96DOI: ( /j.hrthm )
Copyright © 2017 International Society for Holter and Noninvasive Electrocardiology, Heart Rhythm Society, and Wiley Periodicals, Inc. Terms and Conditions

3. Figure 2
Holter lead configurations. (A) Mason-Likar 12-lead system for continuous ECG monitoring. Electrode placements are as follows: RA: 2nd intercostal space right side midclavicular, LA 2nd intercostal space left side midclavicular, LL below 8th intercostal left side midclavicular line, RL: upper sternum, V1: 4th right intercostal space at the sternal border, V2: 4th left intercostal space at the sternal border, V3: between V2 and V4, V4: 5th left intercostal space at the midclavicular line, V5: 5th left intercostal space at the anterior axillary line, V6: 5th left intercostal space at the midaxillary line; (B) EASI reduced leads system. EASI is a reduced lead system suitable for continuous ECG monitoring. It is an alternative to both the commonly used 5-electrode monitoring system and the traditional 10-electrode Mason-Likar 12-lead ECG system. The EASI lead configuration enables continuous reconstructed 12-lead ECG ambulatory monitoring using only five electrodes. The EASI 12-lead ECG is derived from a set of four recording electrodes and one reference electrode. The placement of these leads is as follows: E: lower extreme of the sternum, A: left mid-axillary line, same transverse line as E, S: sternal manubrium, I: right mid-axillary line, same transverse line as E, R: fifth electrode is the body potential reference and can be placed anywhere on the torso.
Heart Rhythm  , e55-e96DOI: ( /j.hrthm )
Copyright © 2017 International Society for Holter and Noninvasive Electrocardiology, Heart Rhythm Society, and Wiley Periodicals, Inc. Terms and Conditions

4. Figure 3
Examples of ECG artifacts (A) The bottom channel shows recording artifact that may simulate atrial flutter/fibrillation. However, careful analysis of the upper channel shows sinus rhythm with clear P waves. The presence of an irregular rhythm secondary to both sinus arrhythmia and occasional premature atrial beats adds to difficulty in making the correct diagnosis from the recording in the bottom channel alone. Figures (B and C) are two distinct examples of artifacts from the same Holter recording that may simulate ventricular tachyarrhythmia. In both tracings, the artifacts are more prominent in one of the two illustrated channels but not the other, making correct interpretation feasible. Normal QRS complexes are marked by arrows at the channel with prominent artifacts.
Reproduced with permission from El-Sherif & Turitto (2015).
Heart Rhythm  , e55-e96DOI: ( /j.hrthm )
Copyright © 2017 International Society for Holter and Noninvasive Electrocardiology, Heart Rhythm Society, and Wiley Periodicals, Inc. Terms and Conditions

5. Figure 4
Electronic Health Record (EHR) integration workflow. The EHR contains information about the patient, which is captured at registration. In this example, the practice is using a third-party provider for ambulatory electrocardiographic monitoring. The EHRPipe is an interface of interrogation engine that serves as a bidirectional bridge between this provider and the EHR system (courtesy of ScottCare, Inc.).
Heart Rhythm  , e55-e96DOI: ( /j.hrthm )
Copyright © 2017 International Society for Holter and Noninvasive Electrocardiology, Heart Rhythm Society, and Wiley Periodicals, Inc. Terms and Conditions