Evidence map›Paper›PMID 25142437›Full record

ArticleCardiovascular diabetology2014

Does glycemic control reverse dispersion of ventricular repolarization in type 2 diabetes?

Takayuki Miki, Toshiyuki Tobisawa, Tatsuya Sato, Masaya Tanno, Toshiyuki Yano, Hiroshi Akasaka, Atsushi Kuno, Makoto Ogasawara, Hiromichi Murase, Shigeyuki Saitoh and 1 more

Abstract read
In one paragraph

Article in Cardiovascular diabetology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Trial
  2. The impact of diabetes on giant negative T-wave amplitude in apical hypertrophic cardiomyopathy patients.American heart journal plus : cardiology research and practice · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Observational
  9. Article
  10. Hyperglycemia induces defective Ca2+ homeostasis in cardiomyocytes.American journal of physiology. Heart and circulatory physiology · 2017
    Article
  11. Article
  12. Article
  13. 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

11 authors.

Takayuki Miki
Toshiyuki Tobisawa
Tatsuya Sato
Masaya Tanno
Toshiyuki Yano
Hiroshi Akasaka
Atsushi Kuno
Makoto Ogasawara
Hiromichi Murase
Shigeyuki Saitoh
Tetsuji MiuraDepartment of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1 West-16, Sapporo 060-8543, Chuo-ku, Japan. miura@sapmed.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAbnormal ventricular repolarization is a predictor of cardiovascular mortality. In this study, we tested the hypothesis that glycemic control reverses abnormal ventricular repolarization in patients with type 2 diabetes.

methodsWe analyzed longitudinal changes in repolarization indices of electrocardiograms in retrospectively enrolled 44 patients with type 2 diabetes and 44 age-matched healthy subjects.

resultsIn the diabetic group, BMI was greater, levels of HbA1c (10.0 ± 1.6 vs. 5.6 ± 0.3%) and triglyceride were higher and level of HDL cholesterol was lower than those in the control group. Although mean QTc intervals were similar (413.6 ± 18.5 vs. 408.3 ± 22.7 ms), QT dispersion (41.8 ± 15.4 vs. 28.7 ± 7.7 ms) and Tpeak-Tend in lead V5 (83.6 ± 13.6 vs. 71.3 ± 10.3 ms) were significantly longer in the diabetic group than in the control group, indicating increased heterogeneity of ventricular repolarization in type 2 diabetes. During follow-up of 36 patients in the diabetic group for 787 ± 301 days, HbA1c level decreased to 7.3 ± 1.6%, while BMI did not significantly change. In contrast to HbA1c, QT dispersion (45.8 ± 15.0 ms) and Tpeak-Tend in lead V5 (83.6 ± 10.6 ms) were not significantly reduced during the follow-up period. There was no correlation between the change in HbA1c and the change in QT dispersion or Tpeak-Tend.

conclusionsIncreased heterogeneity of ventricular repolarization in type 2 diabetic patients was not reduced during the relatively short follow-up period despite significantly improved glycemic control.

Indexed as

AgedBlood GlucoseDiabetes Mellitus, Type 2ElectrocardiographyFemaleFollow-Up StudiesGlycemic IndexHumansLongitudinal StudiesMaleMiddle AgedRetrospective StudiesVentricular DysfunctionBlood Glucose

Identifiers

PMID25142437
PMCPMC4243814

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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.