CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-18. AI was used for research and drafting; the existence of all 1 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 2783 · Search date 2026-08-18 · Methodology v1.0

Mobile integrated care pathway,
does it really help with Reduced composite thromboembolism, death, and rehospitalization in atrial fibrillation?

30-Second Summary
B
Evidence Grade B · 70 · Safety caution
Mobile-supported ABC integrated care reduced the composite outcome, driven mainly by fewer rehospitalizations
Intracranial bleeding occurred in 0 versus 2 participants and extracranial bleeding in 31/1,646 (1.9%) versus 36/1,678 (2.1%), with no signal of increased bleeding. Anticoagulation and comorbidity medication adjustment require clinical supervision.
What the
research shows
The grade is B. In all 3,324 mAFA-II participants, the composite of ischemic stroke or systemic thromboembolism, all-cause death, and rehospitalization occurred in 32/1,646 (1.9%) versus 101/1,678 (6.0%), HR 0.39 (95% CI 0.22-0.67). The absolute difference was -4.1 points, about one event per 24 treated, but rehospitalization drove most of the effect; this was one open cluster trial and allocation concealment was not described, giving B with 70 points.
What the
ads claim
The trial did not show that a smartphone alone prevents events. The app operationalized anticoagulation, symptom control, and comorbidity management as one care pathway.
*

Useful facts when choosing a product

  • The intervention combined anticoagulation, symptom control, and comorbidity management in the ABC pathway.
  • Huawei-related photoplethysmography was rhythm-assessment technology, distinguished from the integrated-care intervention.
  • Follow-up and subgroup reports from the same registration were not counted as new trials.
ID

Chamgap Semantic Classification Code

Candidate index · review held

UNK.mobile-health-supported-abc-integrated-care-pathway.UNK.composite-thromboembolism-death-and-rehospitalization-in-atrial-fibrillation.reduce.UNK

Unknown > Mobile health-supported ABC integrated care pathway > Unknown > composite thromboembolism, death, and rehospitalization in atrial fibrillation > Reduction claim > Unknown

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 2783 · B 70
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

Forty Chinese hospitals were cluster randomized, with all 1,646 versus 1,678 allocated participants analyzed. The report states, "Randomization was done using a computer-generated randomisation list," but did not adequately describe allocation concealment, and investigators and site personnel were not masked. The registry and publication used the same primary composite. Enrollment was 3,324 rather than the protocol target of 3,660, but this was not stopping at an efficacy or harm boundary. Funding came from the National Natural Science Foundation of China, the National Key Research and Development Project of China, the Heilongjiang health commission, and the UK NIHR, while the Huawei research team provided photoplethysmography-based rhythm monitoring as a component of the intervention. Public research funding and company technical support in kind were mixed. Relevant consulting, speaking, and institutional research disclosures by Lip and Lane were also reported.

02

Why this is classified as B (70)

A 3,324-person hard-outcome trial mixing public research funding with company technical support in kind found a large absolute difference, but no independent replication and unreported allocation concealment give B with 70 points.

Counterpoint. Cluster imbalance, open treatment, and a composite driven mainly by rehospitalization temper interpretation.

Rejudgment record. Cross-check applied — Cross-checked the main article, protocol, and same-trial follow-up for the all-3,324 analysis, composite and absolute results, cluster randomization, allocation-concealment reporting, funding, and Huawei's role

Stored scoring profile
EndpointHHard endpoint - actual events such as death
ReplicationR1Single confirmatory trial
IndependenceI1Mixed funding sources
Effect sizeE+Meets the clinically important threshold

Stored derived and displayed grades match; this is not a current recalculation or validity check (B).

▦

Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Reduced composite clinical eventsBThe absolute difference was -4.1 points and HR 0.39.
No increase in bleedingBExtracranial bleeding was 1.9% versus 2.1%.
✓

Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Guo Y et al. 2020 mAFA-IIOpen cluster-randomized trial across 40 Chinese hospitals3,324 randomized and analyzed by intention to treat, 1,646/1,678Chinese national and provincial public grants plus UK NIHR; Huawei provided rhythm monitoring as an intervention component - mixed public funding and company support in kindComposite of ischemic stroke or systemic thromboembolism, all-cause death, and rehospitalization32/1,646 (1.9%) versus 101/1,678 (6.0%), HR 0.39 (95% CI 0.22-0.67), absolute difference -4.1 pointsLarge publicly funded single hard-outcome trial
§

Receipt — 1 References

All 1 cited sources were verified for existence at the original page (as of 2026-08-18).

Guo Y, Lane DA, Wang L, et al. Mobile Health Technology to Improve Care for Patients With Atrial Fibrillation. J Am Coll Cardiol. 2020;75(13):1523-1534. PMID: 32241367. DOI: 10.1016/j.jacc.2020.01.052. ChiCTR-OOC-17014138.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-18 · Corrections: none
↗

Cite this verdict

Mobile integrated care pathway x atrial fibrillation Evidence Grade B card
[Chamgap] Mobile integrated care pathway x atrial fibrillation — Evidence Grade B·70. 1 cited sources checked. Source: https://chamgap.com/en/verdicts/heart/mobile-integrated-care-pathway-atrial-fibrillation-clinical-events/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

!

What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.
↑