Low 1,5-anhydroglucitol levels are associated with long-term cardiac mortality in acute coronary syndrome patients with hemoglobin A1c levels less than 7.0.

Abstract

BACKGROUND:

Diabetes mellitus is considered an important risk factor for cardiovascular diseases. High hemoglobin A1c (HbA1c) levels, which indicate poor glycemic control, have been associated with occurrence of cardiovascular diseases. There are few parameters which can predict cardiovascular risk in patients with well-controlled diabetes. Low 1,5-anhydroglucitol (1,5-AG) levels are considered a clinical marker of postprandial hyperglycemia. We hypothesized that low 1,5-AG levels could predict long-term mortality in acute coronary syndrome (ACS) patients with relatively low HbA1c levels.

METHODS:

The present study followed a retrospective observational study design. We enrolled 388 consecutive patients with ACS admitted to the cardiac intensive care unit at the Juntendo University Hospital from January 2011 to December 2013. Levels of 1,5-AG were measured immediately before emergency coronary angiography. Patients with early stent thrombosis, no significant coronary artery stenosis, malignancy, liver cirrhosis, a history of gastrectomy, current steroid treatment, moderately to severely reduced kidney function (estimated glomerular filtration rate < 45 ml/min/1.73 m2; chronic kidney disease stage 3B, 4, and 5), HbA1c levels ≥ 7.0%, and those who received sodium glucose co-transporter 2 inhibitor therapy were excluded.

RESULTS:

During the 46.9-month mean follow-up period, nine patients (4.5%) died of cardiovascular disease. The 1,5-AG level was significantly lower in the cardiac death group compared with that in the survivor group (12.3 ± 5.3 vs. 19.2 ± 7.7 µg/ml, p < 0.01). Kaplan-Meier survival analysis showed that low 1,5-AG levels were associated with cardiac mortality (p = 0.02). Multivariable Cox regression analysis showed that 1,5-AG levels were an independent predictor of cardiac mortality (hazard ratio 0.76; 95% confidence interval 0.41-0.98; p = 0.03).

CONCLUSION:

Low 1,5-AG levels, which indicate postprandial hyperglycemia, predict long-term cardiac mortality even in ACS patients with HbA1c levels < 7.0%.

• Authors: Shohei Ouchi, Kazunori Shimada, Tetsuro Miyazaki, Shuhei Takahashi, Yurina Sugita, Megumi Shimizu, Azusa Murata, Tomoyasu Kadoguchi, Takao Kato, Tatsuro Aikawa, Shoko Suda, Eiryu Sai, Masaru Hiki, Hiroshi Iwata, Takatoshi Kasai, Katsumi Miyauchi, Hiroyuki Daida
• Journal: Cardiovascular diabetology (Cardiovasc Diabetol) Vol. 16 Issue 1 Pg. 151 (11 21 2017) ISSN: 1475-2840 [Electronic] England
• PMID: 29157245 (Publication Type: Journal Article, Observational Study, Research Support, Non-U.S. Gov't)

Chemical References

• Biomarkers
• Blood Glucose
• Glycated Hemoglobin A
• hemoglobin A1c protein, human
• 1,5-anhydroglucitol
• Deoxyglucose

Topics

• Acute Coronary Syndrome (blood, diagnostic imaging, mortality)
• Aged
• Aged, 80 and over
• Biomarkers (blood)
• Blood Glucose (metabolism)
• Cause of Death
• Chi-Square Distribution
• Coronary Angiography
• Deoxyglucose (blood)
• Disease-Free Survival
• Down-Regulation
• Female
• Glycated Hemoglobin (metabolism)
• Hospitals, University
• Humans
• Hyperglycemia (blood, diagnosis, mortality)
• Japan
• Kaplan-Meier Estimate
• Male
• Middle Aged
• Multivariate Analysis
• Postprandial Period
• Proportional Hazards Models
• Retrospective Studies
• Risk Factors
• Time Factors