Electrocardiographic monitoring, commonly termed telemetry, is continuous remote monitoring of cardiac rhythm used for inpatients. Telemetry can identify arrhythmias, abnormal QT intervals and electrocardiographic changes that suggest myocardial ischemia. Despite these capabilities, studies have found substantial overuse: between 30% and 90% of telemetry use outside critical care settings is either inappropriate or continued longer than recommended. Many patients monitored without an appropriate indication rarely have arrhythmias detected that lead to changes in management.
Telemetry is recommended for patients at elevated risk of clinically important arrhythmia. Principal appropriate indications described in the source include:
The source emphasizes that monitoring chronic, stable conditions—such as chronic, stable atrial fibrillation or asymptomatic, hemodynamically stable sinus bradycardia—is generally not indicated because such patients infrequently have management-changing events detected by telemetry.
For inpatients with moderate to high risk of acute coronary syndrome, the recommended monitoring period is 24 to 48 hours. Telemetry should be continued until there is no evidence of modifiable ischemia or electrical instability.
When cardiac syncope is suspected and clinical decision tools point toward an arrhythmic etiology, a minimum of 24 hours of monitoring is warranted while the cause is sought and treatment is planned.
The source does not report additional specific timing recommendations for other indications beyond these examples.
Telemetry is not a neutral intervention. Potential downsides discussed include:
These harms underline that telemetry should be used selectively and discontinued as soon as it is no longer indicated.
The American Heart Association’s Practice Standards for electrocardiographic monitoring are referenced; these standards acknowledge that there is no Level A evidence demonstrating a benefit of inpatient telemetry. Observational and quality-improvement studies cited in the source document the high prevalence of inappropriate telemetry use and the safety of interventions to reduce overuse, but the source does not provide randomized trial evidence establishing hard clinical outcome benefits for telemetry in all indications.
Several evidence-based interventions have been described to reduce inappropriate telemetry ordering and prolongation:
Require clinicians to select a Practice Standards–based indication when placing a telemetry order. This requirement, coupled with education about appropriate indications, has led to substantial reductions in inappropriate orders without increases in mortality, code blue events or critical-care outreach activations.
Provide targeted staff education on when telemetry is and is not indicated.
Embed expiration times into telemetry orders so monitoring discontinues automatically unless actively renewed.
Review telemetry use on a daily basis to facilitate timely discontinuation when it is no longer needed.
Quality-improvement initiatives that standardize discontinuation processes and hardwire guideline-based practices can safely and sustainably reduce the duration of inappropriate telemetry monitoring. Examples in the source include embedding guideline selection into ordering workflows and building expiration defaults into orders. These interventions aim to shift telemetry from an open-ended default to a time-limited, indication-driven intervention.
The authors reported competing interests: one author received research grants from the United States Department of Veterans Affairs and Arnold Ventures; another reported receiving a stipend for leadership in a resource stewardship student and trainee group associated with Choosing Wisely Canada. No other competing interests were declared.
References cited in the source include observational and implementation studies on reducing telemetry overuse and the American Heart Association practice standards. The source notes that the AHA practice standards do not assert Level A evidence for benefit of telemetry in hospitalized patients.