Observational studyIndian heart journal
Presence of myocardial fibrosis on cardiac MRI and its impact on short-term outcomes in an Asian cohort of heart failure with preserved ejection fraction (HFpEF).
Observational study in Indian heart journal. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUNDS AND
objectivesThis study aims to evaluate the presence and prognostic significance of myocardial fibrosis in subjects with and without HFpEF, using Cardiac MRI.
methodsThis was an ambidirectional observational study [mean follow-up: 25 months], selecting HFpEF patients and comparing them with an age and sex-matched control arm without HF. Late gadolinium-enhanced (LGE) imaging and T1 mapping were used to assess fibrosis.
resultsLGE (27 % vs 0 %, p = 0.005) and mid-segment (1062 ± 64 ms vs 1020±8 ms, p < 0.001) or total average (1057 ± 70 ms vs 1020±4 ms, p = 0.006) T1 values were significantly higher in HFpEF group (N = 30) compared to the control group. However, there was no significant difference in T2 values (p = 0.657). 53.3 % of our patients with HFpEF had a clinical event (HF hospitalization, stroke or all-cause mortality) during the follow-up. It was found that average mid-segment (1099 ± 67 ms vs 1019 ± 17 ms, p<0.001) and total average (1101 ± 70 ms vs 1007 ± 15 ms, p<0.001) T1 values were significantly higher in the event group compared to the no-event group. There were no differences in LGE prevalence between event and no-event groups. However, LGE negative cases had significantly increased T1 values in all segments compared to the healthy control group (p<0.001).
conclusionsHigher T1 values but not T2 values , were associated with the HFpEF group compared to the age and sex-matched control group. Focal fibrosis, as evident by LGE, was significantly more in HFpEF. Among HFpEF patients, high T1 myocardial values were associated with a higher rate of all-cause death, stroke, and HF hospitalization in short-term follow-up.
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