Highlights
- Telemedicine follow-up within 14 days of emergency department (ED) discharge is associated with a safety profile comparable to in-person care.
- Utilization of telemedicine for post-ED transitions remains low (2.8%) compared to in-person follow-up (23.6%) among patients with commercial or Medicare Advantage insurance.
- Higher telemedicine adoption is observed among younger patients, women, and those with a higher burden of comorbidities or more complex ED visits.
- There is no statistically significant increase in the risk of return hospitalization for patients utilizing telemedicine versus in-person follow-up for high-risk chronic conditions.
Background
The transition from the emergency department (ED) to the outpatient setting represents a vulnerable period in the patient care continuum. For patients with chronic conditions—such as congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), diabetes, and asthma—the post-ED period is fraught with the risk of medical errors, medication non-adherence, and rapid clinical deterioration. Historically, the “gold standard” for mitigating these risks has been a rapid in-person follow-up visit within 7 to 14 days. However, logistical barriers including transportation, physical mobility limitations, and clinic scheduling constraints often impede timely care.
The COVID-19 pandemic catalyzed a paradigm shift in healthcare delivery, leading to the rapid expansion of digital health infrastructure. Telemedicine emerged as a potential solution to bridge the gap in post-acute care. Despite its proliferation, concerns have persisted among clinicians and policy experts regarding its clinical equivalence to in-person assessment, particularly for recently discharged patients who may require physical examination or diagnostic testing. This review synthesizes recent evidence, specifically focusing on the findings of Kilaru et al. (2026), to evaluate the utilization patterns and clinical outcomes of telemedicine in the post-ED setting between 2020 and 2022.
Key Content
Study Methodology and Population Synthesis
The evidence is derived from a large-scale retrospective cohort study utilizing administrative claims data from a diverse population of over 147,000 adults. The cohort specifically targeted patients discharged from the ED with a primary diagnosis of CHF, diabetes, COPD, or asthma—conditions known for high readmission rates and a high requirement for coordinated follow-up. The study period (2020-2022) captures the evolving landscape of healthcare access following the initial pandemic surge.
The primary analysis focused on the modality of the first outpatient visit occurring within 14 days of ED discharge. By utilizing multivariable logistic regression and time-to-event methods, researchers were able to adjust for confounding variables including age, sex, insurance type, and baseline comorbidity scores (e.g., Elixhauser Comorbidity Index).
Trends in Telemedicine Utilization (2020-2022)
Despite the technological advancements of the last several years, the utilization of telemedicine for post-ED follow-up remains remarkably low. In the analyzed cohort, only 2.8% of patients accessed telemedicine, whereas 23.6% utilized in-person follow-up. This indicates that the vast majority of patients and providers still rely on traditional face-to-face interactions for post-acute transitions.
Interestingly, the data reveals specific demographic and clinical phenotypes associated with telemedicine use. Users tended to be younger and female. Furthermore, patients with a higher number of comorbidities and those whose ED visits were characterized by higher complexity were more likely to use telemedicine. This suggests that for complex patients—for whom physical travel to a clinic may be particularly burdensome—telemedicine serves as a critical accessibility tool rather than just a convenience for the healthy.
Clinical Outcomes: The Safety of Virtual Follow-up
A primary concern for emergency physicians and primary care providers is whether a virtual visit can adequately identify early signs of decompensation compared to a physical exam. The findings from 2020-2022 offer significant reassurance: telemedicine was not associated with a greater risk of return hospitalization compared with in-person care. This lack of difference in return hospitalizations suggests that for the management of chronic conditions, the “verbal and visual” assessment provided by telemedicine may be sufficient for early post-discharge stabilization.
However, the study also highlighted a critical “gap in care”: 5.1% of the cohort was hospitalized before they could even attend any follow-up visit. This underscores that the speed of follow-up may be more critical than the modality itself. If telemedicine can be deployed more rapidly than an in-person appointment can be scheduled, it may prevent some of these early return hospitalizations.
Condition-Specific Variations
The effectiveness and use of telemedicine varied slightly across the four chronic conditions studied. Patients with asthma and diabetes showed slightly higher rates of virtual engagement compared to those with CHF. This may reflect the differences in physical assessment needs; for example, the necessity of assessing peripheral edema or performing detailed lung auscultation in CHF and COPD patients might lead some clinicians to prioritize in-person visits.
Expert Commentary
From a clinical and health policy perspective, these findings suggest that telemedicine is an underutilized resource in the post-ED period. The data indicates that the safety profile is robust, yet the adoption rate of 2.8% reflects a missed opportunity. One of the most compelling aspects of this research is the finding that higher-complexity patients are more likely to use telemedicine. This contradicts the early-pandemic assumption that digital health would primarily serve low-acuity, “worried well” populations.
However, several limitations must be considered. First, administrative claims data lacks granular clinical details, such as the quality of the video connection or the specific clinical reasoning behind choosing one modality over another. Second, the study focused on patients with commercial insurance or Medicare Advantage; therefore, the findings may not be fully generalizable to the Medicaid or uninsured populations, where the “digital divide” (access to high-speed internet and devices) may be more pronounced.
Clinicians should view telemedicine not as a replacement for in-person care, but as a triage and stabilization tool. For a patient with COPD who is struggling with transportation, a telemedicine visit on day 3 post-discharge is infinitely more valuable than an in-person visit on day 20. The goal should be to minimize the 5.1% of patients who fall through the cracks and are re-hospitalized before any follow-up occurs.
Conclusion
The period between 2020 and 2022 demonstrated that telemedicine is a safe and viable modality for post-ED follow-up in patients with chronic medical conditions. While utilization rates remain low, the lack of increased hospitalization risk provides a strong argument for integrating telemedicine more deeply into ED discharge protocols. Future efforts should focus on “focused interventions”—such as scheduling virtual follow-ups before the patient even leaves the ED—to expand access and close the gap in care for high-risk patients. Research must continue to explore how telemedicine can be optimized for specific socio-economic groups to ensure that the transition to digital health does not exacerbate existing health disparities.
References
- Kilaru AS, Mondal A, Jesteen S, Geng Z, Isenberg D, Zikry HE, Meisel ZF. Telemedicine Use and Outcomes Following Discharge From the Emergency Department, 2020-2022. Annals of Emergency Medicine. 2026-03-11. PMID: 41817487.
- Verma S. Early Lessons From The Expansion Of Telehealth In Response To COVID-19. Health Affairs. 2020.
- Hwang U, et al. The Transition of Care from the Emergency Department to Home. Clinics in Geriatric Medicine. 2018.
