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Record W7131272940 · doi:10.31579/2692-9759/167

Arrhythmia Mechanism in Hypertensive Hearts

2025· article· W7131272940 on OpenAlexfundno aff
Rehan Haider *, Hina Abbas, Mehak Shaikh

Bibliographic record

VenueCardiology Research and Reports · 2025
Typearticle
Language
FieldMedicine
TopicCardiac electrophysiology and arrhythmias
Canadian institutionsnot available
FundersUniversity of KarachiUniversity of Calgary
KeywordsAtrial fibrillationElectrophysiologySudden cardiac deathPathologicalMechanism (biology)DiastoleBlood pressureBaroreflexSympathetic activity

Abstract

fetched live from OpenAlex

Hypertension is a major modifiable risk factor contributing to the development of cardiovascular diseases, including arrhythmias. Chronic elevated blood pressure induces structural and electrophysiological remodeling of the heart, creating a substrate conducive to arrhythmic events. In hypertensive hearts, left ventricular hypertrophy, myocardial fibrosis, and altered ion channel expression disrupt normal conduction pathways, predisposing patients to both atrial and ventricular arrhythmias. Additionally, elevated sympathetic activity, impaired baroreflex sensitivity, and neurohormonal activation, particularly involving the renin-angiotensin-aldosterone system (RAAS), further exacerbate arrhythmogenic risk. These pathological changes increase heterogeneity in action potential duration, enhance automaticity, and promote triggered activity through early and delayed afterdepolarizations. Atrial fibrillation is particularly prevalent in hypertensive individuals due to atrial enlargement and interstitial fibrosis, which interfere with atrial conduction. Ventricular arrhythmias, though less common, may arise from ischemia, myocardial hypertrophy, and abnormal repolarization, leading to life-threatening complications such as sudden cardiac death. The interplay between hypertension-induced structural changes and electrophysiological dysfunction creates a vicious cycle that increases cardiac vulnerability. Understanding the underlying mechanisms of arrhythmogenesis in hypertensive hearts is crucial for risk stratification, early detection, and the development of targeted therapeutic strategies. Antihypertensive treatments, especially those modulating RAAS and sympathetic activity, have shown efficacy in reducing arrhythmic burden. Furthermore, advancements in imaging and electrophysiological mapping can aid in identifying high-risk patients and guiding interventional approaches. This review underscores the importance of integrating hypertension management with arrhythmia prevention in clinical practice, highlighting a multidisciplinary approach to improving cardiovascular outcomes.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.004
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Research integrity
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Case report · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.562
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0040.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0020.000
Bibliometrics0.0010.001
Science and technology studies0.0010.002
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.003
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.029
GPT teacher head0.346
Teacher spread0.317 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designCase report
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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