Evidence map›Paper›PMID 42422487›Full record

ArticleEuropean heart journal open2026

Pathology-validated prevalence and clinical characteristics of coronary medial arterial calcification.

Yuki Matsumoto, Sho Torii, Kazuki Aihara, Yuto Ono, Yu Sato, Norihito Nakamura, Manabu Shiozaki, Tsukasa Kato, Masataka Nakano, Tomoya Onodera and 9 more

Abstract read
In one paragraph

Article in European heart journal open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Yuki MatsumotoDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.ORCID https://orcid.org/0000-0002-8107-7848
Sho ToriiDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.ORCID https://orcid.org/0000-0002-5934-0427
Kazuki AiharaDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Yuto OnoDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Yu SatoDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Norihito NakamuraDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Manabu ShiozakiDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Tsukasa KatoDepartment of Cardiology, Akita University School of Medicine, 1-1-1 Hondo, Akita, Akita 010-8543, Japan.
Masataka NakanoDepartment of Cardiology, Ageo Central General Hospital, 1-10-10 Kashiwaza, Ageo, Saitama 362-8588, Japan.
Tomoya OnoderaDepartment of Cardiology, Shizuoka City Shizuoka Hospital, 10-93 Ote-machi, Aoi-ku, Shizuoka, 420-8630, Japan.ORCID https://orcid.org/0000-0003-3924-3256
Yuki EgawaDepartment of Cardiology, Shizuoka City Shizuoka Hospital, 10-93 Ote-machi, Aoi-ku, Shizuoka, 420-8630, Japan.
Shingo ItoDepartment of Cardiovascular Medicine, St.Marianna University Hospital, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511, Japan.
Kaho HashimotoDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Ryosuke OmuraDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Daiki SuzukiDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Yohei MasugiDepartment of Pathology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Yoshihiro MorinoDivision of Cardiology, Department of Internal Medicine, Iwate Medical University, 2-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan.
Yuji IkariDepartment of Cardiology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
Gaku NakazawaDepartment of Cardiology, Kindai University School of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, Japan.ORCID https://orcid.org/0000-0002-6721-1342

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aims: Medial arterial calcification (MAC) is well characterized in peripheral arteries, but its pathology-validated prevalence in the coronary circulation remains uncertain. Because intravascular imaging cannot routinely delineate the elastic laminae in advanced atherosclerotic lesions, deep intimal calcification (DIC) accumulating adjacent to the internal elastic lamina (IEL) may fundamentally mimic MAC. This study aimed to determine the strict pathology-validated prevalence of true coronary MAC and morphologically characterize DIC as a potential imaging mimic using a large-scale autopsy registry. Methods and results: We evaluated 4508 histologic sections from 327 coronary arteries in 112 autopsy cases. To ensure accurate layer-specific differentiation, the IEL and external elastic lamina were precisely identified using Movat Pentachrome and EVG stains. The cohort was high-risk, featuring 85% cardiac deaths. Pathology-confirmed MAC was remarkably rare, present in only 1.0% of sections and 3.6% of patients. Strikingly, coronary MAC presented in two distinct morphological phenotypes. Three patients exhibited nodular MAC strictly co-existing with intimal nodules in severely stenotic segments, representing secondary mechanical protrusion from the intima. Conversely, only one patient exhibited isolated medial sheet calcification with minimal intimal narrowing, representing true primary medial disease. Notably, the IEL-overriding pattern occasionally seen in peripheral MAC was entirely absent. Meanwhile, DIC was significantly more prevalent, identified in 35.7% of patients. Conclusion: True primary coronary MAC is exceptionally rare. Because dense acoustic shadowing clinically conceals secondary medial nodular protrusions

Identifiers

PMID42422487
PMCPMC13344422

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