Cited by 21Cardiovascular Function and Risk FactorsCardiovascular and exercise physiologyHeart Failure Treatment and Management

Abnormal glucose metabolism is associated with reduced left ventricular contractile reserve and exercise intolerance in patients with chronic heart failure

Egstrup, M., Kistorp, C. N., Schou, M., Hofsten, D. E., Moller, J. E., Tuxen, C. D., Gustafsson, I.·2013·European Heart Journal - Cardiovascular Imaging

Abstract

AIMS: To investigate the associations between glucose metabolism, left ventricular (LV) contractile reserve, and exercise capacity in patients with chronic systolic heart failure (HF). METHODS AND RESULTS: From an outpatient HF clinic, 161 patients with systolic HF were included (mean age 70 ± 10 years, 69% male, 59% had ischaemic heart disease, mean LV ejection fraction (LVEF) 37 ± 9%). Thirty-four (21%) patients had known diabetes mellitus (DM). Oral glucose tolerance testing (OGTT) classified patients without a prior DM diagnosis as normal glucose tolerance (NGT), impaired glucose tolerance or new DM. All patients completed low-dose dobutamine echocardiography (LDDE) and 154 patients a 6-min walking distance test (6MWD). Compared with patients with NGT, patients with known DM had lower resting LVEF (33.4 vs. 39.1%, P < 0.05) and higher E/e' (13.9 vs. 11.4, P < 0.05). During LDDE, an increase in LVEF could be observed in all glycemic groups (mean 8.2% absolute increase), but the contractile reserve was lower in patients with known DM (-5.4%, P = 0.001) and new DM (-3.5%, P = 0.035) compared to patients with NGT. 6MWD was lower in known DM (349 m) and new DM (379 m) compared with NGT (467 m) (P < 0.001). Differences in clinical variables, resting echocardiographic parameters or contractile reserve, did not explain the exercise intolerance related to diabetes. CONCLUSION: Diabetes, known or newly detected by OGTT, is independently associated with reduced LV contractile reserve and exercise intolerance in outpatients with systolic HF. These findings may offer one explanation for the excess mortality related to diabetes in HF.

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Crossref · 10.1093/ehjci/jes165

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Authors
Egstrup, M., Kistorp, C. N., Schou, M., Hofsten, D. E., Moller, J. E., Tuxen, C. D., & Gustafsson, I.
Affiliations
  • Frederiksberg Hospital (DK)
  • Herlev Hospital (DK)
  • Rigshospitalet (DK)
  • Bispebjerg Hospital (DK)
Corresponding author
Egstrup, M.
Venue
European Heart Journal - Cardiovascular Imaging
Published
2012-08-16
Volume
14
Issue
4
Pages
349-357
ISSN
  • 2047-2404 (ISSN-L)
  • 2047-2412
OpenAlex
W2164075916
Cited by
21
References
36
Citations by year
2023: 1 · 2021: 1 · 2020: 4 · 2019: 4 · 2018: 1 · 2017: 2 · 2015: 1 · 2014: 4 · 2013: 3
FWCI
1.65
Type
journal article
Language
en
Open access
closed
Locations
  • European Heart Journal - Cardiovascular Imaging (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Failure Treatment and Management
Keywords
chronic systolic heart failure, diabetes mellitus, glucose metabolism, impaired glucose tolerance, left ventricular contractile reserve, exercise intolerance, oral glucose tolerance test, 6-minute walk distance, left ventricular ejection fraction, E/e' ratio
MeSH terms
Aged, Aged, 80 and over, Blood Glucose, Diabetes Mellitus, Exercise Test, Female, Humans, Male, Middle Aged, Myocardial Contraction, Prognosis, Retrospective Studies, Severity of Illness Index, Cohort Studies, Exercise Tolerance, Ventricular Dysfunction, Left, Risk Assessment, Echocardiography, Stress, Heart Failure, Systolic

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