Jornal Vascular Brasileiro
Jornal Vascular Brasileiro
Original Article

The association between Hba1c and arterial stiffness among non-diabetic patients with chronic kidney disease

Associação entre Hba1c e rigidez arterial entre pacientes sem diabetes com doença renal crônica

Atakan Turgutkaya; Gülay Aşçı

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Abstract: Background: Cardiovascular events are seen more frequently after the age of 60 and they are a significant cause of morbidity and mortality. Arterial stiffness is a property that can be expressed by pulse wave velocity and this value is assumed to be a predictor of cardiovascular events. Patients with chronic kidney disease and dysregulated blood sugar have increased atherosclerosis and arterial stiffness, but the relationship between physiological levels of Hba1c and arterial stiffness is less clear in chronic kidney disease patients without diabetes mellitus.

Objectives: Here, we aimed to investigate the degree of arterial stiffness among non-diabetic, non-dialysis dependent chronic kidney disease patients with physiological HbA1c levels.

Methods: We enrolled 51 patients who were followed up at Ege University Hospital Nephrology Department between February and June 2015. Non-diabetic, non-dialysis dependent chronic kidney disease patients were included in the study. Blood pressure and pulse wave velocity were measured with an applanation tonometry device (Sphygmocor Vx Software Atcor Medical, Australia). Correlations between pulse wave velocity and the aforementioned parameters were investigated (see below).

Results: We detected a significant correlation between pulse wave velocity and systolic blood pressure (p=0.0001) and Hba1c (p=0.044) separately. There was an inverse correlation with creatinine clearance (p=0.04). We also detected a significant correlation with serum phosphorus level (p=0.0077) and furosemide use (p=0.014). No correlations were found among the other parameters.

Conclusions: Arterial stiffness is an important predictor of cardiovascular events and measuring it is an inexpensive method for estimating morbidity and mortality. Our study supports the importance of measuring arterial stiffness and of controlling blood glucose levels, even at physiological Hba1c values, especially for chronic kidney disease patients.


arterial stiffness, atherosclerosis, cardiovascular, chronic kidney disease, pulse wave velocity


Resumo: Contexto: Os eventos cardiovasculares são mais frequentes em pessoas com mais de 60 anos, e sugere-se que sejam causas significativas de morbidade e mortalidade. A rigidez arterial é expressa pela velocidade da onda de pulso, e presume-se que esse valor seja um preditor de eventos cardiovasculares. Os pacientes com doença renal crônica e desregulação do açúcar no sangue têm aterosclerose e rigidez arterial aumentadas. No entanto, a relação entre os níveis fisiológicos de Hba1c e a rigidez arterial entre pacientes com doença renal crônica sem diabetes melito é menos clara.

Objetivos: Buscamos investigar o grau de rigidez entre os pacientes sem diabetes e portadores de doença renal crônica sem dependência de diálise com níveis fisiológicos de HbA1c.

Métodos: Incluímos 51 pacientes, sem diabetes e com doença renal crônica sem dependência de diálise, que estavam em acompanhamento no Departamento de Nefrologia do Ege University Hospital entre fevereiro e junho de 2015. A pressão sanguínea e a velocidade da onda do pulso foram medidas com um dispositivo de tonometria de aplanação (Sphygmocor Vx Software Atcor Medical, Austrália). A correlação entre a velocidade da onda de pulso e os parâmetros mencionados anteriormente foi investigada.

Resultados: Detectamos correlação significativa entre a velocidade da onda de pulso e a pressão arterial sistólica (p = 0,0001) e Hba1c (p = 0,044) separadamente. Foi constatada correlação inversa com a depuração de creatinina (p = 0,04). Também detectamos correlação significativa com o nível de fósforo sérico (p = 0,0077) e o uso de furosemida (p = 0,014). Não foi encontrada correlação entre outros parâmetros.

Conclusões: A rigidez arterial é um preditor importante de eventos cardiovasculares, e a sua medição é um método de baixo custo para estimar a morbidade e mortalidade. Nosso estudo corrobora a importância da medição da rigidez arterial e do controle dos níveis de glicemia sanguínea mesmo em valores de Hba1c fisiológicos, principalmente para pacientes portadores de doença renal crônica.


rigidez arterial, aterosclerose, cardiovascular, doença renal crônica, velocidade da onda de pulso


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