Evidence map›Paper›PMID 15791442›Full record

Trial reportEuropean journal of nuclear medicine and molecular imaging2005

Effects of nicorandil on cardiac sympathetic nerve activity after reperfusion therapy in patients with first anterior acute myocardial infarction.

Shu Kasama, Takuji Toyama, Hisao Kumakura, Yoshiaki Takayama, Shuichi Ichikawa, Tadashi Suzuki, Masahiko Kurabayashi

Registry-linked trialAbstract readClinical TrialRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of nuclear medicine and molecular imaging, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04826497 (Effects of Nicorandil on Cardiac Sympathetic Nerve Activity and Distribution in Patients With Acute Myocardial Infarction Treated With Primary Percutaneous Coronary Intervention), which is not on this map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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.

NCT04826497 phase4unknown statusnot on this mapstarted 2021, after this paper: background citation

Effects of Nicorandil on Cardiac Sympathetic Nerve Activity and Distribution in Patients With Acute Myocardial Infarction Treated With Primary Percutaneous Coronary Intervention

TypeinterventionalSponsorXuzhou Central HospitalRan2021 to 2022Enrolled80ConditionsCoronary Heart DiseaseArmsnicorandil, Placebo(normal saline)
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Review
  7. Comparison ofMolecular imaging and biology · 2022
    Article
  8. Article
  9. Does lipid-lowering medication improve cardiac sympathetic nerve integrity?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  10. Article
  11. Review
  12. Imaging cardiac neuronal function and dysfunction.Current cardiology reports · 2006
    Review
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

7 authors at 2 institutions in 1 country.

Shu KasamaDepartment of Cardiovascular Medicine, Gunma University School of Medicine, 3-39-15, Showa-machi, Maebashi, 371-0034, Japan. s-kasama@bay.wind.ne.jp
Takuji Toyama
Hisao Kumakura
Yoshiaki Takayama
Shuichi Ichikawa
Tadashi Suzuki
Masahiko Kurabayashi
Gunma University · JPGunma University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIschaemic preconditioning (PC) is a cardioprotective phenomenon in which short periods of myocardial ischaemia result in resistance to decreased contractile dysfunction during a subsequent period of sustained ischaemia. Nicorandil, an ATP-sensitive potassium channel opener, can induce PC effects on sympathetic nerves during myocardial ischaemia. However, its effects on cardiac sympathetic nerve activity (CSNA) and left ventricular remodelling have not been determined. In this study, we sought to determine whether nicorandil administration improves CSNA in patients with acute myocardial infarction (AMI).

methodsWe studied 58 patients with first anterior AMI, who were randomly assigned to receive nicorandil (group A) or isosorbide dinitrate (group B) after primary coronary angioplasty. The nicorandil or isosorbide dinitrate was continuously infused for >48 h. The extent score (ES) was determined from 99mTc-pyrophosphate scintigraphy, and the total defect score (TDS) was determined from 201Tl scintigraphy 3-5 days after primary angioplasty. The left ventricular end-diastolic volume (LVEDV) and left ventricular ejection fraction (LVEF) were determined by left ventriculography 2 weeks later. The delayed heart/mediastinum count (H/M) ratio, delayed TDS and washout rate (WR) were determined from 123I-meta-iodobenzylguanidine (MIBG) images 3 weeks later. The left ventriculography results were re-examined 6 months after treatment.

resultsFifty patients originally enrolled in the trial completed the entire protocol. After treatment, no significant differences were observed in ES or left ventricular parameters between the two groups. However, in group A (n=25), the TDSs determined from 201Tl and 123I-MIBG were significantly lower (26+/-6 vs 30+/-5, P<0.01, and 32+/-8 vs 40+/-6, P<0.0001, respectively), the H/M ratio significantly higher (1.99+/-0.16 vs 1.77+/-0.30, P<0.005) and the WR significantly lower (36%+/-8% vs 44%+/-12%, P<0.005) than in group B (n=25). Moreover, 6 months after treatment, LVEDV and LVEF were better in group A than in group B.

conclusionThese findings indicate that nicorandil can have beneficial effects on CSNA and left ventricular remodelling in patients with first anterior AMI.

Indexed as

3-IodobenzylguanidineAngioplasty, Balloon, CoronaryFemaleHumansIsosorbide DinitrateMaleMiddle AgedMyocardial InfarctionNicorandilPrognosisRadionuclide ImagingRadiopharmaceuticalsSympathetic Nervous SystemTreatment OutcomeVasodilator AgentsVentricular Dysfunction, Left3-IodobenzylguanidineIsosorbide DinitrateNicorandilRadiopharmaceuticalsVasodilator Agents

Identifiers

PMID15791442
OpenAlexW1979646069

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.