Evidence map›Paper›PMID 33221855›Full record

ArticleEuropean heart journal2020

Prognostic importance of the transmitral pressure gradient in mitral annular calcification with associated mitral valve dysfunction.

Philippe B Bertrand, Timothy W Churchill, Evin Yucel, Mayooran Namasivayam, Samuel Bernard, Yasufumi Nagata, Wei He, Carl T Andrews, Michael H Picard, Arthur E Weyman and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in European heart journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.3field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Continuous-wave Doppler interrogation in valvular heart disease: pearls and pitfalls.European heart journal. Imaging methods and practice · 2026
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Mitral Annular Calcification: Understanding the Disease and Treatment Options.Structural heart : the journal of the Heart Team · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Right Ventricular-Pulmonary Arterial Coupling and All-Cause Mortality in Patients with Mitral Annular Calcification-Related Mitral Valve Dysfunction.Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography · 2024
    Article
  18. Review
  19. Article
  20. Risk Factors and Outcomes With Progressive Mitral Annular Calcification.Journal of the American Heart Association · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 1 institution in 1 country.

Philippe B BertrandDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Timothy W ChurchillDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Evin YucelDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Mayooran NamasivayamDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Samuel BernardDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Yasufumi NagataDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Wei HeDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Carl T AndrewsDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Michael H PicardDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Arthur E WeymanDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Robert A LevineDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Judy HungDivision of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St Boston, MA 02114, USA.
Harvard University · US

Funding

Improving Mitral Compensation In Ischemic RegurgitationR01HL141917 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI AIKAWA, ELENA, BISCHOFF, JOYCE E. · 2018 to 2021
$5.6M
Improving Mitral Compensation in Ischemic RegurgitationR01HL109506 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI AIKAWA, ELENA, BISCHOFF, JOYCE E. · 2012 to 2015
$3.3M
Treating Ventricle and Valve: New Synergies for Ischemic LV Remodeling with MRR01HL128099 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI AKAR, FADI GABRIEL, LEVINE, ROBERT A · 2016 to 2019
$2.8M
NHLBI NIH HHS R01 HL109506NHLBI NIH HHS R01 HL128099NHLBI NIH HHS R01 HL141917
6 · The paper itself

Abstract

aimsThe aim of this study was to define the natural history of patients with mitral annular calcification (MAC)-related mitral valve dysfunction and to assess the prognostic importance of mean transmitral pressure gradient (MG) and impact of concomitant mitral regurgitation (MR). METHODS AND

resultsThe institutional echocardiography database was examined from 2001 to 2019 for all patients with MAC and MG ≥3 mmHg. A total of 5754 patients were stratified by MG in low (3-5 mmHg, n = 3927), mid (5-10 mmHg, n = 1476), and high (≥10 mmHg, n = 351) gradient. The mean age was 78 ± 11 years, and 67% were female. MR was none/trace in 32%, mild in 42%, moderate in 23%, and severe in 3%. Primary outcome was all-cause mortality, and outcome models were adjusted for age, sex, and MAC-related risk factors (hypertension, diabetes, coronary artery disease, chronic kidney disease). Survival at 1, 5, and 10 years was 77%, 42%, and 18% in the low-gradient group; 73%, 38%, and 17% in the mid-gradient group; and 67%, 25%, and 11% in the high-gradient group, respectively (log-rank P < 0.001 between groups). MG was independently associated with mortality (adjusted HR 1.064 per 1 mmHg increase, 95% CI 1.049-1.080). MR severity was associated with mortality at low gradients (P < 0.001) but not at higher gradients (P = 0.166 and 0.372 in the mid- and high-gradient groups, respectively).

conclusionIn MAC-related mitral valve dysfunction, mean transmitral gradient is associated with increased mortality after adjustment for age, sex, and MAC-related risk factors. Concomitant MR is associated with excess mortality in low-gradient ranges (3-5 mmHg) but gradually loses prognostic importance at higher gradients, indicating prognostic utility of transmitral gradient in MAC regardless of MR severity.

Indexed as

CalcinosisHeart Valve DiseasesMitral Valve InsufficiencyAgedAged, 80 and overFemaleHumansMaleMitral ValvePrognosisTreatment OutcomeEchocardiographyMitral annular calcificationMitral regurgitationMitral stenosisMitral valve gradient

Identifiers

PMID33221855
PMCPMC7735814
OpenAlexW3106959934

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.