Evidence map›Paper›PMID 33123936›Full record

Observational studyThe international journal of cardiovascular imaging2021

Clinical impact of a new optical coherence tomography-derived volumetric method for evaluating stent expansion.

Akito Kawamura, Daisuke Nakamura, Ryu Shutta, Hitoshi Nakamura, Yutaka Matsuhiro, Naotaka Okamoto, Yasuyuki Egami, Yasushi Sakata, Masami Nishino, Jun Tanouchi

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in The international journal of cardiovascular imaging, 2021. 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
0.2field-weighted citation impact, top 43% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. 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

10 authors at 2 institutions in 1 country.

Akito KawamuraDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Daisuke NakamuraDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan.
Ryu ShuttaDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Hitoshi NakamuraDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Yutaka MatsuhiroDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Naotaka OkamotoDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Yasuyuki EgamiDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Yasushi SakataDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan.
Masami NishinoDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan. mnishino@osakah.johas.go.jp.ORCID http://orcid.org/0000-0003-0309-7023
Jun TanouchiDivision of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Sakai-city, Osaka, 591-8025, Japan.
Osaka Rosai Hospital · JPThe University of Osaka · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to investigate the impact of a new optical coherence tomography (OCT)-derived volumetric method for stent expansion (new-OCT method) to predict the target lesion revascularization (TLR) and compare the expansion findings between this new method and the conventional method because, in the real world, there are few clinical data on the new-OCT-method for stent expansion. One hundred forty lesions in 135 patients who underwent OCT-guided percutaneous coronary intervention were enrolled. We compared the new-OCT-method and conventional method to predict the TLR at 1 year. A total of 7 lesions (5.0% of treated lesions) in 6 patients experienced TLR during 1 year of follow up. The minimum expansion index (MEI) using the new-OCT method was significantly lower in the TLR group than non-TLR (60.0% vs. 77.0%; p < 0.001) while the conventional method for assessing stent expansion did not show a statistically significant difference between the two groups (71.3% and 79.7%; p = 0.118). The univariate analysis showed that the stent length, minimum stent area, minimum lumen area, MEI, and renal insufficiency/failure, were significant predictors of a 1-year TLR. The multivariate model identified the stent length, MEI, and renal insufficiency/failure as the independent predictors of TLR and the value of the MEI was the only predictor in the OCT findings. The new OCT-derived volumetric method for stent expansion is superior to the conventional method for predicting the TLR at 1 year. The MEI may be the most practical and efficient way to estimate stent under-expansion.

Indexed as

StentsTomography, Optical CoherenceAgedCoronary Artery DiseaseCoronary VesselsFemaleHumansImage Processing, Computer-AssistedMalePercutaneous Coronary InterventionPredictive Value of TestsRetrospective StudiesTime FactorsTreatment OutcomeOptical coherence tomographyRestenosisStent expansion

Identifiers

PMID33123936
OpenAlexW3096942336

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.