Impaired Exercise Capacity in High-Risk Diabetic Cardiomyopathy: The ARISE-HF Cardiopulmonary Exercise Testing Subanalysis
Bibliographic record
Abstract
BACKGROUND: Objective indices of functional capacity in patients with diabetic cardiomyopathy and stage B heart failure (HF) have not been comprehensively defined. We sought to characterize the cardiopulmonary exercise characteristics of individuals with diabetic cardiomyopathy at high risk for overt HF. METHODS: The relationships from cardiopulmonary exercise testing with clinical and laboratory characteristics of participants with diabetic cardiomyopathy were evaluated using baseline data from the ARISE-HF trial (Aldose Reductase Inhibition for Stabilization of Exercise Capacity in Heart Failure). Cluster phenogroups with different comorbidities and their corresponding functional capacity profiles were identified. RESULTS: Among study participants (n=689), the median (Q1, Q3) peak oxygen uptake and ventilatory efficiency (slope of the ratio of minute ventilation/carbon dioxide production) were 15.7 (interquartile range, 13.0-18.0) mL/kg per minute and 31.2 (interquartile range, 27.2-34.1), respectively. Lower peak oxygen uptake was associated with older age, female sex, higher body mass index, higher N-terminal pro-B-type natriuretic peptide, and an increasing burden of noncardiac comorbid conditions but was not associated with cardiac troponin T or echocardiogram-derived strain, left atrial volume index, E/e', or right ventricular systolic pressure. Elevated left ventricular mass index was the only echocardiographic abnormality associated with lower peak oxygen uptake. Multivariable analysis revealed that female sex, higher body mass index, and no history of dyslipidemia were independently associated with lower baseline peak oxygen uptake. Cluster analysis revealed 3 clusters with profiles of different cardiovascular/exercise parameters and health status profiles. CONCLUSIONS: Baseline cardiopulmonary exercise testing data from the ARISE-HF trial highlight predominant associations of extracardiac clinical and demographic variables with significant impairment in exercise capacity despite strict fulfillment of diagnostic criteria for stage B HF. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04083339.
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 imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".