High HbA1c Group Research Articles

Early pregnancy high normal HbA1c: a high risk group?

To determine if high normal early pregnancy HbA1c (35-40mmol/mol), in the absence of diabetes, was associated with increased risk of adverse perinatal outcomes compared to normal HbA1c (<35mmol/mol). A retrospective chart review was carried out on all singleton births in the Wellington region from 1 July 2019 to 31 December 2019. Exclusion criteria were participants domiciled outside the Wellington region, HbA1c ≥50mmol/mol, pre-existing diabetes, gestational diabetes in current pregnancy, no HbA1c performed <20 weeks or the first HbA1c was taken at ≥20 weeks. Baseline characteristics, HbA1c and pregnancy outcomes were obtained. The primary outcome was birth weight and was analysed using multiple linear regression. There were 1,067 participants in the normal HbA1c (nHbA1c) group and 186 in the high normal HbA1c (hnHbA1c) group. There was no difference in birth weight between hnHbA1c and nHbA1c. hnHbA1c had significantly lower odds of post-partum haemorrhage and composite maternal adverse outcomes compared to nHbA1c (OR 0.52, 95% CI 0.35-0.76) and (OR 0.64, 95% CI 0.46-0.89). High normal HbA1c was not associated with increased risk of adverse perinatal outcomes in pregnant people who did not develop gestational diabetes.

Preoperative Glycosylated Hemoglobin A1C Impacts Long-Term Outcomes Following Curative-Intent Resection of Nonfunctional Gastroenteropancreatic Neuroendocrine Tumors.

To investigate the impact of preoperative glycosylated hemoglobin A1C (HbA1c) among patients following curative-intent resection of nonfunctional gastroentropancreatic neuroendocrine tumors (GEP-NETs). Patients who underwent curative-intent resection for GEP-NETs from 2000 to 2020 were identified from the US Neuroendocrine Tumor Study Group (US-NETSG). Preoperative blood HbA1c levels were defined as high HbA1c (≥ 6.5%) versus low HbA1c group (< 6.5%). Impact of HbA1c level on postoperative short-term and long-term overall (OS) were investigated. A total of 130 patients with HbA1c < 6.5% and 60 patients with HbA1c ≥ 6.5% were included. Patients with HbA1c ≥ 6.5% had higher proportion of comorbidities, such as hypertension, obesity, anemia, and lower preoperative albumin levels versus patients with HbA1c < 6.5% (all p < 0.05). In addition, high level of preoperative HbA1c was associated with increased incidence of wound and infectious complications, as well as decreased long-term OS (median OS: high Hb1Ac 89.8 months vs. low Hb1Ac not reached, HR 3.487, p = 0.004) among patients with nonfunctional GEP-NETs, as well as among the subset of pancreatic NET patients (median OS: high Hb1Ac 74.3 months vs. low Hb1Ac not reached, p = 0.004), and patients with normal fasting blood glucose (< 140 mg/dL) (median OS: high Hb1Ac 75.4 months vs. low Hb1Ac not reached, p = 0.001). Hb1Ac might have value as a screening tool to identify high-risk patients following surgical resection of nonfunctional GEP-NETs for consideration of more strict postoperative surveillance and treatment of elevated Hb1Ac level.

Effect of Elevated Blood Glucose on Postoperative Complications Among Diabetic Patients After Surgical Treatment of Torsional Ankle Fracture.

This study aims to evaluate the association of elevated blood glucose and postoperative complications among diabetic patients after surgical treatment of torsional ankle fracture. This was a retrospective study of consecutive diabetic patients treated surgically for a torsional ankle injury between January 2017 and December 2021 at a large tertiary hospital. All patients who met inclusion and exclusion criteria were divided into a high-HbA1c group or a low-HbA1c group according to the HbA1c cutoff of 7.0% within 3 months of operation, then a propensity score match was performed to control potential confounding factors. The primary outcomes were postoperative complications, and secondary outcomes were unplanned secondary procedures. A matched cohort of 238 patients was finally included, with 119 patients with high HbA1c levels and 119 with low HbA1c levels. Patients with high HbA1c levels experienced more complications (31.1% vs 18.5%, P < .01) and more secondary procedures (22.7% and 8.4%, P < .01) than those with low HbA1c levels. Multivariate logistic regression indicated that patients with high HbA1c levels were significantly associated with higher proportions of any complications (OR 2.25, 95% CI 1.08-4.69; P = .03), superficial infection (OR 4.03, 95% CI 2.13-5.41; P < .01), deep infection (OR 1.42, 95% CI 1.23-2.02; P < .01), and any unplanned secondary operations (OR 3.72, 95% CI 1.62-8.52; P < .01) compared with those with low HbA1c levels after controlling for potential confounders. Multivariate linear regression showed that high HbA1c levels were significantly associated with a higher number of complications (β = 4.61, 95% CI 2.63-18.18; P < .01) and a higher number of secondary procedures (β = 4.44, 95% CI 2.79-10.87; P < .01). Patients with an HbA1c >7.0% within 3 months of operation are more likely to have a wound issue/infection and more likely to undergo a secondary procedure after surgical treatment of torsional ankle fractures in diabetic patients than patients with an HbA1c ≤7.0% within 3 months of operation.

Insufficient Plasma Melatonin and Its Association With Neuropsychiatric Impairments in Patients With T2DM.

Purpose: Type 2 diabetes mellitus (T2DM) is associated with multiple neuropsychiatric impairments, including cognitive dysfunction, and melatonin (MLT) plays a crucial role in maintaining normal neuropsychiatric functions. This study is aimed at investigating the change in plasma MLT levels and its association with neuropsychiatric impairments in T2DM patients. Methods: One hundred twenty-six T2DM patients were recruited, and their demographics and clinical data were collected. Apart from the plasma glycated hemoglobin (HbA1c) levels and other routine metabolic indicators, the plasma concentrations of MLT, C-reactive protein (CRP), Interleukin 6 (IL-6), soluble myeloid triggered receptor 1 (sTREM 1), and receptor 2 (sTREM 2) were measured. Moreover, the executive function and depressive tendency were evaluated via the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) and the Epidemiological Research Center Depression Scale (CES-D), respectively. Result: Compared with the low HbA1c group, the T2DM patients in the high HbA1c group presented lower plasma MLT levels but higher plasma concentrations of inflammatory biomarker levels, together with higher scores in the BRIEF-A and CES-D scales. Moreover, results of the Pearson correlation test showed that the plasma MLT levels were negatively correlated with the BRIEF-A and CES-D scores, as well as plasma concentrations of HbA1c and inflammatory indications, indicating that MLT may mediate their neuroinflammation and neuropsychiatric impairments. Furthermore, the ROC curve results indicated that plasma MLT levels have a predictive effect on executive impairment and depressive status in T2DM patients. Conclusion: MLT levels decreased in patients with T2DM and were associated with neuropsychiatric impairments and inflammatory status, and MLT might be developed as a therapeutic agent and predictive indicator for T2DM-associated executive impairment and depression status.

Effect of pre-operative HbA1c and blood glucose level on the surgical site infection after lumbar instrumentation surgery

BackgroundThis study aims to investigate the effect of pre-operative hemoglobin A1c (HbA1c) and pre-operative blood glucose control on the rate of surgical site infection (SSI) after posterior lumbar instrumentation surgery in diabetes mellitus (DM) patients. MethodsA total of 1046 patients who had undergone posterior lumbar instrumentation surgery were reviewed. Based on pre-operative HbA1c, patients were divided into three groups: non-DM group, low HbA1c group (HbA1c < 7.0 % in DM) and high HbA1c group (≥7.0). As well, based on the status of blood glucose control in DM patients immediately before surgery, patients were divided into two groups: good control group (post-prandial blood glucose [PBG] < 200 mg/dl) and poor control group (≥200). The rate of SSI was compared among these groups. ResultsSSI occurred in 1.9 % in non-DM group, 2.4 % in low HbA1c group, and 9.3 % in high HbA1c group. Compared with non-DM group, high HbA1c group had significantly higher rate of SSI (p = 0.001). There was not statistically different between non-DM and low HbA1c groups (p = 0.550). SSI occurred in 2.2 % in good control group, and 10.2 % in poor control group. The rate of SSI was significantly lower in good control group (p = 0.013). ConclusionThis study showed that the rate of SSI after posterior lumbar instrumentation surgery tend to be higher in DM patients with high HbA1c. However, the rate might be reduced to the same level as that of non-DM group by lowering PBG to <200 mg/dl immediately before surgery.

Lower HbA1C of glycemic control is associated with higher risk of depressive symptoms in elderly with type 2 diabetes mellitus–A Nationwide Community-based study

ObjectiveWe investigated the correlation between glycemic control status and depressive symptoms in type 2 diabetes elderly. MethodsA total of 1527 participants with type 2 diabetes aged 55 years and older from the Healthy Aging Longitudinal Study in Taiwan study were included in this cross-sectional study. The Center for Epidemiologic Studies Depression Scale (CESD) (20 items) score of ≥16 was indicative of depressive symptoms. The participants were divided into HbA1c ≥ 6.5% and < 6.5% representing the glycemic control. Multiple logistic regression (MLR) and Generalized linear model (GLM) were used. ResultsThe MLR analysis showed that the low HbA1c group had significant two-fold increased odds of depressive symptoms compared to the high HbA1c group (OR 1.89, 95% CI 1.17–3.05). The risk of depressive symptoms was lower among males (OR 0.49, 95% CI 0.30–0.80) and those with higher BMI (OR 0.93, 95% CI 0.86–1.00); whereas the risk was higher among those who lived alone (OR 2.37, 95% CI 1.31–4.27) and with ADL disability (OR 3.01, 95% CI 1.85–4.89). The GLM showed that the dimension of depressive affect reached statistical significance with lower HbA1c. ConclusionThis nationwide community-based study shows that depressive symptoms are associated with lower HbA1C, reminding us that more attention should be paid to the presence of depressive symptoms in those with lower HbA1C. Further research is needed to clarify the causal relationship.

Acceptance of encapsulated porcine islet xenotransplantation by patients and doctors in the US

AbstractIntroductionPreviously, we performed encapsulated porcine islet xenotransplantation for the treatment of unstable type 1 diabetic patients and demonstrated the clinical benefit and safety in New Zealand and Argentina. Conversely, the treatment of type 1 diabetes differs from country to country; therefore, understanding the acceptance of the new treatment by patients and medical doctors in each country is important. In this study, a survey study of the acceptance of the encapsulated porcine islet xenotransplantation by the type 1 diabetic patients and medical doctors in the US was conducted.MethodsThe questionnaires consisted of the acceptance of the encapsulated porcine islet xenotransplantation without immunosuppression, and the reasons for selecting and not selecting. Moreover, we conducted a sub‐analysis among patient groups regarding severe hypoglycemia and HbA1c levels.ResultsThe majority of patients and doctors (patients, 63.8%; doctors, 70.0%) had a positive opinion to accept this treatment. A significantly high number of doctors selected no immunosuppression for selecting this treatment (patients, 35.5%; doctors, 53.6%; p &lt; 0.001), and a significantly high number of patients selected not insulin free for not selecting this treatment (patients 20.4%, doctors 12.4%, p &lt; 0.05). The high HbA1c group had the highest ‘definitely’ accept rate, which was significantly higher than those of the other HbA1c groups (High HbA1c group, 50.0%; other HbA1c groups, 22.2%; p &lt; 0.05).ConclusionIn conclusion, the majority of US patients and doctors had positive opinions to accept the encapsulated porcine islet xenotransplantation. Type 1 diabetic patients with high HbA1c levels had the highest ‘definitely’ acceptance rates.

Combining HbA1c and insulin resistance to assess the risk of gestational diabetes mellitus: A prospective cohort study

ObjectiveTo investigate the association of glycated hemoglobin (HbA1c) and homeostasis model assessment insulin resistance (HOMA-IR) with gestational diabetes mellitus (GDM) risk. MethodsData for this study were from a prospective cohort in Hangzhou, China. We included pregnant women with HbA1c, fasting insulin, and fasting glucose (FG) measured at 15–20 weeks of gestation and underwent oral glucose tolerance test (OGTT) at 24–28 weeks. Based on HbA1c and HOMA-IR, participants were divided into four groups. We estimated the odds ratios (OR) with 95% confidence intervals (CI) to assess the associations of HbA1c and HOMA-IR with GDM occurrence. Finally, we the potential additive interaction between HbA1c and HOMA-IR by calculating relative excess risk due to interaction (RERI) and the attributable proportion due to interaction (AP). Result462 pregnant women were included, of whom 136 (29.44%) developed GDM. Based on HbA1c and HOMA-IR, the study population was divided into four groups, with the percentages of each group being 51.30%, 15.58%, 20.56%, and 12.55%, respectively. The incidence of GDM increased with the increase of HOMA-IR and HbA1c, respectively, and the risk of GDM was significantly increased when both HOMA-IR and HbA1c were elevated. However, no such risk was observed in pregnant women < 35 years. Finally, we found significantly higher FG at 24–28 weeks in the high HOMA-IR and HbA1c group among GDM-positive pregnant women. ConclusionsThe incidence of GDM increased with increasing HbA1c and HOMA-IR, and the risk of GDM was significantly increased when both HbA1c and HOMA-IR were elevated. This finding may help to identify high-risk women for GDM early in pregnancy and provide timely interventions.

Association of socioeconomic status with glycated haemoglobin level and risk factors for diabetic retinopathy: a cross-sectional study in Sichuan, western China

ObjectiveDiabetes affects 1 in 10 adults in China. Diabetic retinopathy (DR) is a diabetes-related complication that, if untreated, impairs vision and causes blindness. Evidence on DR diagnosis and risk factors...

Evaluation of the Glycosylated Haemoglobin as a Predictor of Severity of Coronary Artery Disease in Non-diabetic NSTEMI Patients

Background: Glycated hemoglobin (HbA1c) values reflect two to three months average endogenous exposure haemoglobin to glucose including postprandial spikes and have low intra-individual variability particularly in non-diabetic patients. Elevated HbA1c is regarded as an independent risk factor for coronary artery disease (CAD) in patients with or without diabetes mellitus (DM). The purpose of this study is to determine the correlation between the level of HbA1c and the severity of coronary artery disease in non-diabetic non ST elevation myocardial infarction (NSTEMI) patients. Methods: This observational study was carried out with total of 64 non-diabetic patients with a history of NSTEMI. Patients were divided into 2 groups based on HbA1c - one group having HbA1c ³5.7 – 6.4% (High risk group) and another group with HbA1c &lt; 5.7% (Low risk group). Severity of CAD was assessed using Gensini score derived from coronary angiographic data. Gensini score &lt; 36 points was regarded as mild coronary artery disease and Gensini score 36 points as moderate to severe coronary artery disease. Then patients with high and low risk HbA1C groups were correlated with severity of CAD. Results: Over 55.5% patients with HbA1c in high-risk group (5.7 – 6.4%) had severe CAD as opposed to 28.6% patients with HbA1c in low-Risk group (&lt;5.7%). The individuals with high-risk group of HbA1c was 3.1 (95% of CI = 1.1 – 8.9) times more likely to have severe CAD than those with HbA1c &lt; 5.7% (p = 0.031). Spearman correlation between HbA1c and Gensini score depicted that the two variables exhibit a linear relationship indicating that Gensini score rises parallel with the rise of HbA1c (r = 0.289, p = 0.021). Conclusion: The study concluded that over half of the non-diabetic, NSTEMI patients with high-risk range HbA1c are likely to have severe CAD than those with HBA1c within normal range. Cardiovasc j 2022; 15(1): 26-35

Chronic hyperglycemia is an adverse prognostic factor for locoregional recurrence-free survival in small cell lung cancer patients treated with radical radiotherapy.

BackgroundPlasma glucose levels might be associated with the severity of tumor hypoxia in patients with cancer. In our previous study, we found that chronic hyperglycemia significantly increased the risk of locoregional recurrence in patients with non‐small cell lung cancer treated with radical radiotherapy (RT). Here, we evaluated the association between plasma glucose levels in terms of hemoglobin A1c (HbA1c) and locoregional recurrence‐free survival in patients with limited‐stage small cell lung cancer treated with radical RT.MethodsWe retrospectively analyzed the clinical data of 59 patients with small cell lung cancer. HbA1c levels were measured 1 week before the start of RT. Survival outcomes were analyzed according to HbA1c levels. Multivariable analysis was conducted to identify whether HbA1c level was a significant prognostic factor for survival.ResultsThe 1‐, 2‐, and 3‐year locoregional recurrence‐free survival rates were 90.9, 86.1, and 78.9%, respectively, in the low HbA1c group, and 45.1, 27.1, and 20.3%, respectively, in the high HbA1c group (p < 0.001). The 1‐, 2‐, and 3‐year distant metastasis‐free survival rates were 67.2, 57, and 57%, respectively, in the low HbA1c group, while it was 56.6, 24.9, and 24.9%, respectively, in the high HbA1c group (p = 0.024). HbA1c level remained a significant prognostic factor for locoregional recurrence‐free survival in the multivariable analysis (p = 0.010).ConclusionsChronic hyperglycemia is a significant prognostic factor for locoregional recurrence‐free survival in patients with limited‐stage small cell lung cancer treated with radical RT. Routine monitoring of plasma glucose levels and aggressive glycemic control should be conducted to prevent locoregional recurrence.

Association between haemoglobin A1c and all-cause and cause-specific mortality in middle-aged and older Koreans: a prospective cohort study

BackgroundThis study aimed to examine associations between haemoglobin A1c (HbA1c) levels over time and all-cause and cause-specific mortality in middle-aged and older Koreans.MethodsUsing 16 years of follow-up data from the Korean Genome and Epidemiology Study, we analysed 9294 individuals aged 40–69 years with no history of cardiovascular disease (CVD) or cancer. Participants were divided into a known diabetes group and five groups categorized by HbA1c levels (< 5.0%, 5.0–5.4%, 5.5–5.9%, 6.0–6.4%, and ≥ 6.5%). Hazard ratios (HRs) for all-cause and cause-specific mortality associated with HbA1c levels were calculated using a conventional and a time-dependent Cox proportional hazards model. Restricted cubic spline models were fitted to investigate the relationship between continuous HbA1c levels and mortality among people without known diabetes. Subgroup analyses were performed for age, sex, smoking, hypertension, liver diseases, and red blood cell counts.ResultsDuring a median follow-up period of 15.7 years, there were 944 deaths, including 185 deaths from CVD, 359 from cancer, and 125 from all external causes. Compared with participants with HbA1c levels of 5.5–5.9%, multivariate-adjusted HRs and 95% confidence intervals for all-cause death of participants with levels < 5.0%, 5.0–5.4%, 6.0–6.4%, and ≥ 6.5% and participants with known diabetes were 1.84 (1.35–2.51), 1.13 (0.95–1.34), 1.30 (1.04–1.62), 1.37 (0.97–1.93), and 2.03 (1.70–2.44), respectively. The risk of cancer mortality was significantly increased in HbA1c < 5.0% (HR, 2.21; 95% CI 1.42–3.44) and known diabetes (HR, 1.60; 95% CI 1.18–2.15). When we performed diverse subgroup analyses, low HbA1c levels at baseline were strongly associated with mortality in participants with liver diseases.ConclusionsWe found U-shaped associations between HbA1c levels at baseline and over time and all-cause mortality in middle-aged and older Koreans. Additionally, the risk of cancer mortality increased both in low and high HbA1c groups, but CVD mortality increased only in high HbA1c group. In particular, people with liver diseases and low HbA1c levels had a high risk of all-cause mortality. Therefore, more careful management of these groups is suggested to identify any deteriorating health conditions.Graphical abstract

Hemoglobin A1c Value of Pregnant Diabetic Women with Their Neonatal Outcome

Background: HbA1c is now accepted as a standard measure for diagnosing type 2 diabetes mellitus. Maternal high HbA1c levels have been associated with increased risk of adverse neonatal outcomes. Objective: To find out the relationship between maternal HbA1c and neonatal outcomes. Materials &amp; Methods: This prospective observational study was conducted from February 2018 to January 2019 in the Department of Neonatology and Department of Gynecology &amp; Obstetrics, BSMMU, Dhaka. Diabetic mothers with known HbA1c Value and their infants who were born in this study period in BSMMU were enrolled. Neonates were divided into two groups. One group that had maternal HbA1c &lt;6% and the other group &gt;6%. Neonatal weights, routine capillary blood glucose were recorded. Results: Among the total 94 mothers, HbA1c level were &lt;6% in 56 mothers and ³6% in 38 mothers. The mean weight, BMI and previous history of gestational diabetes of mothers were significantly higher in HbA1c ³6% group. Birth weight and large for gestational age infants was high in ³6% HbA1c group. Neonatal hypoglycemia developed more in high HbA1c group. Total visible birth defect was 4 and all were in high HbA1c group (p=0.022). Conclusion: Elevated HbA1c level during pregnancy is a predictor for large for gestational age infants as well as neonatal hypoglycemia. BANGLADESH J CHILD HEALTH 2021; VOL 45 (2) : 74-78

Undiagnosed Impaired Glucose Tolerance and Type-2 Diabetes in Acute Myocardial Infarction Patients: Fequency, Characteristics and Long-Term Mortality.

BackgroundIn this study we investigated the prevalence of undiagnosed impaired glucose tolerance and type-2-diabetes (T2D) among patients with acute myocardial infarction (AMI) and prospectively analyzed whether these patients have a higher long-term mortality.MethodsThe analysis was based on 2,317 AMI patients aged 25–84 years from the population-based Myocardial Infarction Registry Augsburg, recruited between 2009 and 2014 and followed-up until 2019 (median follow-up time 6.5 years [IQR: 4.9–8.1]). AMI patients with a diagnosis of diabetes were divided into a high (>7.0%) and a low HbA1c group (≤7.0%) according to HbA1c values at admission. The remaining patients (without known diabetes) were grouped into normal (<5.7%), elevated (5.7–6.4%), and high (≥6.5%) HbA1c groups. In a multivariable-adjusted COX regression analysis, the association between HbA1c groups and long-term mortality was investigated. Linear regression models were used to identify AMI patients with elevated HbA1c values by means of personal characteristics.ResultsAt admission, 29.5% of all patients reported a diagnosis of diabetes. Of all patients without known diabetes, 5.4% had HbA1c values of ≥ 6.5 and 37.9% had HbA1c values between 5.7 and 6.4%. The fully adjusted Cox regression model showed a non-significant trend toward higher long-term mortality for AMI patients with increased HbA1c values (HbA1c 5.7–6.4% HR: 1.05 [0.79–1.38], HbA1c > 6.5% HR: 1.34 [0.77–2.31]). A linear regression model including the variables admission serum glucose, BMI, age, sex and type of infarction (STEMI, NSTEMI) showed only poor prediction of HbA1c values (R2: 11.08%).ConclusionA fairly high number of AMI patients without known diabetes have elevated HbA1c values. Though we could not prove a higher risk of premature mortality in these patients, early detection and adequate therapy might lead to reduced diabetes-associated complications and improve long-term outcomes.

Prognostic Significance of Admission Glucose Combined with Hemoglobin A1c in Acute Ischemic Stroke Patients with Reperfusion Therapy.

Background: Elevated admission glucose and hemoglobin A1c (HbA1c) levels have been suggested to be associated with 90-day functional outcomes in acute ischemic stroke (AIS) patients with endovascular thrombectomy (EVT). However, whether the prognostic significance of admission glucose and that of HbA1c have a joint effect on patients with intravascular thrombolysis (IVT) and/or EVT remains unclear. This study aimed to explore the association between admission glucose combined with HbA1c and outcomes in patients with reperfusion therapy. Methods: Consecutive AIS patients treated with IVT and/or EVT between 2 January 2018 and 27 February 2021 in West China hospital were enrolled. Admission glucose and HbA1c levels were measured at admission. Participants were divided into four groups according to admission glucose level (categorical variable: <7.8 and ≥7.8 mmol/L) and HbA1c level (categorical variable: <6.5% and ≥6.5%): normal glucose and normal HbA1c (NGNA), normal glucose and high HbA1c (NGHA), high glucose and normal HbA1c (HGNA), and high glucose and high HbA1c (HGHA). The primary outcome was an unfavorable functional outcome defined as a modified Rankin Scale (mRS) ≥ 3. The secondary outcome was all-cause mortality at 90 days. Results: A total of 519 patients (mean age, 69.0 ± 13.4 years; 53.8% males) were included. Patients in the HGHA group had a significantly increased risk of unfavorable functional outcome (OR, 1.81; 95%CI, 1.01–3.23) and mortality (OR, 1.75; 95%CI, 1.01–3.06) at 90 days compared with those in the NGNA group after adjustment for confounders. There was no significant association between NGHA (OR, 0.43; 95%CI, 0.12–1.53) or HGNA (OR, 1.46; 95%CI, 0.84–2.56) and outcomes compared to the NGNA group. Conclusion: The combination of high admission glucose and high HbA1c level was significantly associated with unfavorable functional outcome and mortality at 90 days in AIS patients with reperfusion therapy.

A retrospective cohort study on the association between poor sleep quality in junior high school students and high hemoglobin A1c level in early adults with higher body mass index values

BackgroundFew epidemiological studies have been performed to clarify the association between glucose metabolism disorders in early adults (20 years old) and physiological and environmental factors, including body mass index (BMI) in junior high school days. Therefore, we examined the association between hemoglobin A1c (HbA1c) level and body size (BMI) in early adulthood and lifestyles, including sleep habits and BMI in junior high school days in Shika town, a small town in Japan, by conducting a retrospective cohort study.MethodsWe examined the HbA1c levels and body size (BMI) of 99 early adults who turned 20 years old between 2016 and 2020 and were residing in Shika town, Ishikawa Prefecture. We obtained the information on lifestyles and living environment factors, including BMI, from a questionnaire survey conducted among the subjects during their junior high school days (13–15 years old) from 2009 to 2013.ResultsNo correlations were observed between the HbA1c levels and the BMI values of the early adults. A two-way analysis of covariance (with the HbA1c levels and BMI values of the early adults as main factors) of the body size and lifestyle habits of the junior high school students revealed that “sleep quality in junior high school” was significantly poorer in the high HbA1c group than in the low HbA1c group in the early adults with high BMI values only. This result was also supported by the logistic regression analysis result.ConclusionsThe present results indicate that poor sleep quality in junior high school was associated with the high HbA1c levels of the early adults with higher BMI values, which suggests that good sleep quality in junior high school prevents the development of hyperglycemia. However, the present study did not find any relationship between early-adult BMI and HbA1c level.

The relationship between glycosylated hemoglobin level and red blood cell storage lesion in blood donors.

Glycosylated hemoglobin (HbA1c), not routinely screened in blood donors, is associated with morphological, biochemical, and functional abnormalities of red blood cells (RBCs) and with enhanced oxidative stress. We aimed to explore HbA1c levels in blood donors and their effect on RBC storage. An analytical cross-sectional study was conducted on 875 eligible blood donors aged 18-60 years from May 1, 2021, to August 30, 2021. Two selected groups of donors (HbA1c <6.5%, n=10; HbA1c ≥ 6.5%, n=10) exhibiting as similar as possible baseline values (such as age, sex, and living habits, etc.) were recruited for blood donation in leukoreduced CPDA-1units. RBC morphological, biochemical, structural, and oxidative stress states were measured during 5-35 days of storage. Elevated HbA1c prevalence was 37%, including 31.7% (277/875) in the prediabetes range (HbA1c 5.7%-6.4%) and 5.4% (47/875) in the diabetes range (HbA1c ≥ 6.5%). Age, body mass index (BMI), smoking, and alcohol consumption were the main factors influencing the HbA1c levels. During storage, high-HbA1c group had abnormal RBC morphology, impaired membrane function, and ion imbalance (higher mean corpuscular volume, distribution width, hemolysis rate, potassium ion efflux, and phosphatidylserine exposure) as compared with low HbA1c group. Additionally, RBC oxidative stress was significantly increased in donors with high HbA1c levels during 21-35 days. Blood donors proportion with abnormal HbA1c levels was relatively high, and donor HbA1c levels may be associated with stored RBCs capacity. Our study provides new insights into the different effects of donor HbA1c levels on RBC storage lesions.

Neonatal outcomes associated with high HbA1c prior to delivery

Professional societies recommend an HbA1c target < 6% for patients with pre-gestational diabetes in pregnancy to minimize complications associated with hyperglycemia. This target may be relaxed up to < 7% to prevent hypoglycemia. We sought to determine whether a 3rd trimester HbA1c ≥ 6.5% was associated with adverse neonatal outcomes. This is a retrospective cohort study of pregnant patients with all forms of diabetes who presented for care at a tertiary referral center from over a ten-year period and had a 3rd trimester HbA1c drawn. Multiple gestations, lethal fetal anomalies, and nonviable deliveries were excluded. Patients with a high HbA1c (≥ 6.5%) were compared to those with low HbA1c ( < 6.5%). The primary outcome was a neonatal composite, including 5-min Apgar < 7, Neonatal Intensive Care Unit (NICU) admission, neonatal demise, neonatal hypoglycemia, Respiratory Distress Syndrome (RDS), and hyperbilirubinemia. Secondary outcomes were components of the composite. Primary and secondary outcomes were compared with univariate regression. Multivariable regression was used to adjust for factors related to the outcome. Of the 500 patients meeting study criteria, 250 (50%) had an HbA1c in the third trimester ≥ 6.5%. 154 (61.60%) of patients with a high A1c had an adverse neonatal outcome. The median and interquartile range of A1c was 7.3 (6.8-8.0) for the high group and 5.9 (5.6-6.2) for the low group. Patients in the high HbA1c group were more likely to have a poor neonatal outcome (OR 2.57; 95% CI 1.79-3.69), which was no longer significant after adjusting for clinically relevant confounding variables (aOR 0.81; 95% CI 0.34-1.93). Patients with a high HbA1c were more likely to have a neonate with hypoglycemia (aOR 2.13; 1.03-4.41), but other components of the composite were similar. Neonatal outcomes were similar between groups, except high HbA1c prior to delivery is associated with an increase in neonatal hypoglycemia among patients with diabetes in pregnancy. This underscores the importance of antenatal maternal glycemic control in the postnatal transition.

Abstract 9555: A Mean Hemoglobin A1c Level of 7,5% is a Cliff Value for the Development of Cardiovascular Events in Diabetic Patients

Background: We sought to evaluate whether there was a difference in the incidence rate of cardiovascular event (CVD) among different hemoglobin (Hb) A1c levels in diabetic patients without a history of atherosclerotic events. Methods: The Japanese primary prevention of atherosclerosis with aspirin for diabetes (JPAD) trial was a multicenter, prospective, randomized, open label, blinded, end-point study done from 2002 to 2008. After completion of the JPAD trial, we followed up with the patients until 2019. We defined the cardiovascular events as the following: acute myocardial infarction; stable angina; unstable angina; sudden cardiac death; stroke; transient ischemic attack; aortic disease; and peripheral artery disease. Among 2,535 JPAD patients, HbA1c levels of the JPAD patients were recorded on average 8 times. Based on the mean value of HbA1c, we divided the patients into three groups: a High HbA1c Group (n=899, HbA1c ≥7.5%); a Moderate HbA1c Group (n=581, 7.5% &gt;HbA1c ≥7.0 %); or, a Low HbA1c Group (n=1055, 7.0% &gt;HbA1c). We compared the incidence of CVD among the three groups. Results: The mean HbA1c (%) was 8.6 in the High HbA1c Group, 7.4 in the Moderate HbA1c Group, and 6.6 in the Low HbA1c Group on registration. During an 11.56-year follow-up, the incidence of CVD was significantly higher in the High HbA1c Group (P&lt;0.0001, Figure) but was not significantly different between the Moderate HbA1c and the Low HbA1c Groups. Cox proportional hazards model analysis revealed that a High HbA1c level (HR, 1.61: 1.26-2.05, P=0.0001) was an independent factor after adjustment for proteinuria ≥±, age ≥65 years, male, body mass index ≥24 kg/m 2 , duration of diabetes ≥7.0% years, medications, eGFR ≥60 ml/min/1.73m 2 , and systolic blood pressure ≥140 mm Hg (Figure). Conclusions: Our study demonstrated that HbA1c ≥7.5% was independently associated with the incidence of CVD in diabetic patients without a history of atherosclerotic events while 7.5% &gt;HbA1c ≥7.0 % was not.

Elevated blood and cerebrospinal fluid glucose levels affect the severity and short-term prognosis of Guillain-Barré syndrome

ABSTRACT Objective This study aimed to explore the correlation of elevated glucose levels in the blood and cerebrospinal fluid with the progression and short-term prognosis of Guillain-Barré syndrome (GBS). Methods The medical records of 982 patients who were diagnosed with GBS in 31 representative tertiary hospitals, located in 14 provinces in southern China, were collected and retrospectively reviewed. Patients were grouped according to the levels of fasting plasma glucose (FPG) and cerebrospinal fluid (CSF) glucose, as well as the concentration of blood hemoglobinAlc (HbA1c). The Hughes grade scale was used to quantify functional outcomes. Results Compared to patients with normal FPG and CSF glucose levels, those in the high FPG and high CSF glucose groups were characterized by a higher proportion of severe patients (HFGS ≥ 3) at admission (58.8 vs. 73.1, P = 0.000; 57.6 vs. 71.2, P = 0.000), at nadir (67.4 vs. 83.0, P = 0.000; 66.2 vs. 80.4, P = 0.000), and at discharge (29.8 vs. 46.3, P = 0.000; 26.4 vs. 45.0, P = 0.000). Patients in the high HbA1c group also had more severe disability at admission (74.6 vs. 56.1, P = 0.005) and at nadir (80.3 vs. 64.3, P = 0.012) compared to the normal HbA1c group. Moreover, elevated levels of FPG and CSF glucose were significantly correlated with more severe disability at admission, at nadir, and at discharge. Conclusions The present study showed that elevated glucose levels in the blood and cerebrospinal fluid were associated with the severity and short-term prognosis of GBS. Trial registration chicTR-RRc-17,014,152. Abbreviations GBS, Guillain-Barré syndrome; FPG, fasting plasma glucose; CSF, cerebrospinal fluid; HFGS, Hughes Functional Grading Scale; HbA1c, hemoglobin A1c. DM, diabetes mellitus; NCS, nerve conduction study; AIDP, acute inflammatory demyelinating polyneuropathy; AMAN, acute motor axonal neuropathy; AMSAN, acute motor sensory axonal neuropathy; MV, mechanical ventilation.