Evidence map›Paper›PMID 36177850›Full record

Trial reportThe Journal of international medical research2022

Effect of direct stenting on microvascular dysfunction during percutaneous coronary intervention in acute myocardial infarction: a randomized pilot study.

Byung Gyu Kim, Sung Woo Cho, Jongkwon Seo, Gwang Sil Kim, Moo-Nyun Jin, Hye Young Lee, Young Sup Byun, Byung Ok Kim

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of international medical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Observational
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

8 authors.

Byung Gyu KimDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.
Sung Woo ChoDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, Korea.
Jongkwon SeoDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.
Gwang Sil KimDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.
Moo-Nyun JinDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.
Hye Young LeeDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.
Young Sup ByunDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.
Byung Ok KimDivision of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Sanggye Paik Hospital, Seoul, Korea.ORCID 0000-0002-7920-2750

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWhether direct stenting (DS) without predilatation during primary percutaneous coronary intervention (PPCI) reduces microvascular dysfunction in patients with ST-elevation myocardial infarction is unclear. We performed a randomized study to assess the effect of DS on microvascular reperfusion.

methodsSeventy-two patients undergoing PPCI were randomly assigned to the DS or conventional stenting (CS) with predilatation groups. The primary endpoint was the post-PPCI index of microcirculatory resistance (IMR). We compared thrombolysis in myocardial infarction myocardial perfusion (TMP) grades, ST-segment resolution, and long-term clinical outcomes between the groups.

resultsMicrovascular reperfusion parameters immediately after PPCI (e.g., the IMR, TMP grade, and ST-segment resolution) were not different between the groups. However, significantly fewer patients in the DS group had the IMR measured because of no-reflow or cardiogenic shock during PPCI than those in the CS group. No differences were found in left ventricular functional recovery or clinical outcomes between the groups.

conclusionsThis trial showed no effect of DS on the IMR. However, our finding should be interpreted with caution because the number of patients who could not have the IMR measured was higher in the CS group than in the DS group. A larger randomized trial is required (Research Registry number: 8079).

Indexed as

Myocardial InfarctionPercutaneous Coronary InterventionST Elevation Myocardial InfarctionHumansMicrocirculationPilot ProjectsProspective StudiesTreatment Outcomedirect stentingindex of microcirculatory resistanceMicrocirculationpercutaneous coronary interventionpredilatationST-elevation myocardial infarction

Identifiers

PMID36177850
PMCPMC9528029

What OpenQuestion holds

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Registered trials

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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.