Central hemodynamics, vascular stiffness, and nocturia in patients with type 2 diabetes

Recently, studies have shown that the presence of nocturia may not be a benign condition and related with systemic illness and mortality. Elevated blood pressure (BP) was another factor related with nocturia.

Type 2 diabetes mellitus (T2DM) is also associated with nocturia. It is now clear that, apart from peripheral BP, central hemodynamic parameters are important for cardiovascular prognosis. However, no previous study in the literature examined the relationship between nocturia and central hemodynamic parameters in patients with T2DM. The current study was designed to examine these relationships. Nocturia was defined as two or more voids per night. Central hemodynamic parameters were assessed from ambulatory BP measurements. In addition to routine biochemistry, 24-h urine collection was performed to measure protein, albumin, and sodium excretion. 158 patients (52. 3%) had T2DM and 144 (47. 7%) did not have T2DM (control group). The presence of T2DM was independently related with nocturia. Both in whole group and in T2DM patients, most of the hemodynamic parameters are higher in patients with nocturia compared to patients without nocturia. Among patients with T2DM, nocturia was associated with augmentation index and pulse wave velocity. In conclusion, central hemodynamic parameters and markers of vascular stiffness may be related with nocturia in patients with T2DM.

Renal failure. 2015 Sep 18 [Epub ahead of print]

Baris Afsar, Rengin Elsurer

a Department of Nephrology , Konya Numune State Hospital , Konya , Turkey and. , b Department of Nephrology , Selcuklu Faculty of Medicine, Selcuk University , Konya , Turkey.


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