Blood samples were obtained by venipuncture in the peritoneal dialyzed patients and control group in a twelve hours fasting state.In hemodialyzed patients blood was drawn just before the start of the mean weekly dialysis session also in a twelve hours fasting state from the vascular access.
All samples were received once at baseline time ( in the start of the study ). Peripheral systolic and diastolic blood pressures were calculated as an average of 10 measurements during a renal replacement treatment month in the starting time of the study.
Also, electrocardiographic examination, echocardiography and the calculation of ankle-brachial blood pressure index became once in the start of the study.