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mHealth-supported remote cardiac rehabilitation improved exercise capacity in heart failure, with limited certainty

JMIR mHealth and uHealth (PubMed)Jul 21, 2026

AI-summarized from the linked source. Educational brief, not medical advice.

Brief summary

A meta-analysis of eight randomized trials involving 1,368 patients with heart failure found that structured remote, virtual, or hybrid cardiac rehabilitation supported by mobile health improved selected exercise-capacity outcomes versus usual or center-based care, but evidence certainty was low to moderate.

What NurseJet pulled from the source

The review compared exercise-focused mobile health cardiac rehabilitation with usual care or center-based rehabilitation. Against usual care, remote, virtual, or hybrid programs improved six-minute walk distance by a pooled mean of 22.99 meters. Against center-based rehabilitation, peak oxygen uptake improved by 0.82 mL/kg/min, although this estimate came from few trials. No intervention-related deaths or serious adverse events were reported, but sparse events and short follow-up prevented firm safety conclusions or a claim that remote programs are equivalent or superior to center-based care.

Why this matters for nurses

Cardiology and medical-surgical nurses help assess readiness for activity, reinforce heart-failure self-management, coordinate discharge referrals, and identify symptoms that require escalation. The review suggests that structured mobile health delivery can extend rehabilitation access while underscoring that it is not interchangeable with every center-based program.

Bedside takeaway

Mobile health-supported cardiac rehabilitation improved selected exercise measures, but programs still require individualized referral, monitoring, and escalation plans.

How This Applies in Practice

Use this when: Preparing or following up with a patient with heart failure who has been referred to a structured remote, virtual, or hybrid cardiac rehabilitation program.

On your shift

Confirm the rehabilitation referral, prescribed activity parameters, monitoring plan, and the patient's ability to use the required technology.
Reinforce the program's symptom, weight, and activity tracking instructions and verify that the patient knows whom to contact for concerning changes.
Escalate worsening dyspnea, edema, dizziness, chest symptoms, or reduced exercise tolerance through the heart-failure team.

Keep in mind: Do not substitute a consumer exercise app for a clinician-directed rehabilitation plan or infer equivalence to center-based care. Follow the cardiac rehabilitation protocol, facility policy, and patient-specific provider orders.

Key takeaways

Eight randomized trials with 1,368 participants evaluated structured mobile health-supported cardiac rehabilitation.
Compared with usual care, six-minute walk distance improved by a pooled mean of 22.99 meters.
Peak oxygen uptake improved modestly versus center-based rehabilitation, but the comparison included few trials.
Evidence certainty was low to moderate, and sparse safety events and short follow-up limited safety conclusions.

Practice implications

Confirm that a remote rehabilitation plan is clinician-directed and matches the patient's functional status, technology access, and monitoring needs. Reinforce prescribed symptom and activity tracking, review escalation instructions, and communicate worsening dyspnea, edema, dizziness, chest symptoms, or exercise intolerance through the heart-failure team.

Limitations & cautions

Only eight trials were included, comparator types and program designs differed, and some estimates came from single studies or few trials. Evidence certainty ranged from low to moderate, follow-up was generally short, and sparse adverse events do not establish long-term safety, equivalence, or noninferiority to center-based rehabilitation.
AI-summarized from the linked source. Review the original article before applying to practice.

Citations

Exact source links

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JMIR mHealth and uHealth (PubMed)

JMIR mHealth and uHealth (PubMed). Effects of Remote, Virtual, or Hybrid Cardiac Rehabilitation Supported by mHealth in Patients With Heart Failure: Systematic Review and Meta-Analysis.

Open original source

https://pubmed.ncbi.nlm.nih.gov/42480049/

Professional education only

This summary does not replace clinical judgment, facility policy, provider orders, or official guidelines. Verify practice changes against the original source and local protocol.

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In the 149 hospitalizations with a demonstrable creatinine change, 33 cases (22.1%) were undocumented.
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Why this matters on shift

A smaller creatinine rise may receive less attention even when it meets the study's laboratory definition of acute kidney injury, which can affect how renal risk is communicated across the inpatient team.

Bedside takeaway

Trend ordered renal-function results and communicate clinically important changes through local escalation and documentation workflows.

Nursing implications

Trend ordered renal-function results and communicate clinically important changes through the care team according to local escalation and documentation workflows.

Limitations & cautions

Abstract-only summary. This was a retrospective, single-center study of 161 hospitalizations; urine-output criteria and reliable preadmission creatinine values were unavailable, and the reference creatinine method may affect case classification.
AI-summarized from the linked source. Review the original article before applying to practice.

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Renal failure (PubMed). Underdocumentation of laboratory-defined acute kidney injury in internal medicine wards: a retrospective cohort study.

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AI-summarized from the linked source. Review the original article before applying to practice.

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Among 630 participants followed for an average of 4.2 years, major cardiovascular events occurred in 15.7% with targeted vitamin D management and 18.4% with usual care (hazard ratio 0.85, 95% CI 0.58 to 1.24; P=0.40).

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At baseline, 87% of participants had a 25-hydroxyvitamin D level of 40 ng/mL or lower.
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The trial cautions against presenting targeted vitamin D supplementation as a proven strategy for reducing major cardiovascular events after myocardial infarction.

Bedside takeaway

Present vitamin D as prescribed supplementation, not as a replacement for established post-MI secondary prevention.

Nursing implications

Reinforce the prescribed secondary-prevention plan and avoid implying that vitamin D replaces therapies with established post-MI benefit.

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Abstract-only summary. The trial included 630 participants, 78.1% were men, the primary confidence interval included benefit and no benefit, and individual secondary outcomes were not the primary endpoint.
AI-summarized from the linked source. Review the original article before applying to practice.

Citations · exact source links

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Abstract-only summary. This was a study-level meta-analysis of heterogeneous observational survival reports; the ventilated and non-ventilated groups were not randomized, so associations should not be interpreted as treatment effects.
AI-summarized from the linked source. Review the original article before applying to practice.

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How This Applies in Practice

Key takeaways

Practice implications

Limitations & cautions

Exact source links

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