Cited by 89Cardiac electrophysiology and arrhythmiasDiabetes Management and ResearchDiabetes Treatment and Management

Effects of controlled hypoglycaemia on cardiac repolarisation in patients with type 1 diabetes

Open access
Koivikko, M. L., Karsikas, M., Salmela, P. I., Tapanainen, J. S., Ruokonen, A., Seppänen, T., Huikuri, H. V., Perkiömäki, J. S.·2008·Diabetologia

Abstract

Aims/hypothesis Nocturnal hypoglycaemia may contribute to sudden death in diabetic patients. However, it is not well known why hypoglycaemia makes these patients prone to death.Methods We assessed the effects of controlled hypoglycaemia on cardiac repolarisation using novel electrocardiographic descriptors of T-wave and QRS complex morphology in 16 type 1 diabetic patients and eight healthy counterparts. Several electrocardiographic variables characterising repolarisation were analysed from digitised 12-lead electrocardiograms during a euglycaemic and a hypoglycaemic clamp.Results Hypoglycaemia did not result in significant changes either in the QT interval corrected for heart rate by the nomogram method or in QT dispersion. However, the morphology of the T-wave changed significantly during hypoglycaemia. The T-wave amplitude and area in precordial leads decreased significantly in both groups (p<0.05 to p<0.001). The spatial QRS-T angle (total cosine R to T) (p<0.05) and the height and the width of the T-wave loop (p<0.05 and p<0.01, respectively) were also reduced in the diabetic patients. The changes in the repolarisation parameters did not exhibit any significant association with changes in catecholamine levels or in heart rate variability in either group.Conclusions/interpretation Hypoglycaemia results in distinct alterations in cardiac repolarisation, which may increase the vulnerability to arrhythmic events.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1007/s00125-007-0902-y

Cites

28 of 28 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Hypoglycemia is associated with increased heart rate, systolic blood pressure, myocardial contractility, stroke volume and cardiac output, and can induce ST- and T-wave changes with a lengthening of the QT interval, which may increase the risk of arrhythmias.

    “Hypoglycemia is associated with increased heart rate, systolic blood pressure (BP), myocardial contractility, stroke volume and cardiac output, and can induce ST-and T-wave changes with a lengthening of the QT interval (slower repolarization), which may increase the risk of arrhythmias (67)(68)(69)(70)(71).”

    From Hypoglycemia (2018) · cites this paper as [67]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 29 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Koivikko, M. L., Karsikas, M., Salmela, P. I., Tapanainen, J. S., Ruokonen, A., Seppänen, T., Huikuri, H. V., & Perkiömäki, J. S.
Affiliations
University of Oulu (FI)
Corresponding author
Perkiömäki, J. S.
Venue
Diabetologia
Published
2007-12-19
Volume
51
Issue
3
Pages
426-435
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W2043475354
Cited by
89
References
29
Citations by year
2024: 3 · 2023: 5 · 2022: 1 · 2021: 4 · 2020: 10 · 2019: 1 · 2018: 3 · 2017: 2 · 2016: 8 · 2015: 12 · 2014: 5 · 2013: 8 · 2012: 3
FWCI
3.74
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • F. Hoffmann-La Roche
  • Diabetestutkimussäätiö
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
nocturnal hypoglycemia, type 1 diabetes, cardiac repolarization, T-wave morphology, QT interval, QT dispersion, QRS-T angle, sudden cardiac death, catecholamines, heart rate variability, arrhythmia risk
MeSH terms
Adolescent, Adult, Blood Glucose, Diabetes Mellitus, Type 1, Electrocardiography, Epinephrine, Female, Heart, Heart Rate, Humans, Hypoglycemia, Male, Middle Aged, Norepinephrine, Potassium, Glucose Clamp Technique, Age of Onset

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review