Table 2.

Hemodynamic, wave reflection, and arterial stiffness parameters during the in-dialysis and out-of-dialysis periods of the 48-hour recording

Variable48-hr PeriodDialysis-On DayP ValueInterdialytic PeriodP Value
In-DialysisOut-of-DialysisDialysis-On DayDialysis-Off Day
Brachial SBP (mmHg)131.9±16.7131.8±18.1130.3±18.10.15130.3±18.1133.6±17.2<0.001
Brachial DBP (mmHg)78.1±10.680.7±12.477.1±11.3<0.00177.1±11.378.3±10.80.002
Brachial PP (mmHg)53.8±12.851.2±12.453.2±13.70.00253.2±13.755.2±13.0<0.001
Mean BP (mmHg)102.8±12.2104.1±14.0101.5±13.10.009101.5±13.1103.6±12.5<0.001
Heart rate (beats/min)74.2±9.574.1±11.174.8±9.80.1274.8±9.873.6±9.6<0.001
Aortic SBP (mmHg)120.1±14.7119.2±16.9118.5±15.70.47118.5±15.7121.7±15.1<0.001
Aortic DBP (mmHg)79.7±10.882.1±12.578.7±11.4<0.00178.7±11.479.8±11.00.005
Aortic PP (mmHg)40.4±9.437.1±10.139.8±10.2<0.00139.8±10.241.9±9.7<0.001
AIx (%)27.4±9.224.7±9.726.8±9.4<0.00126.8±9.428.8±9.8<0.001
AIx(75) (%)26.6±7.624.0±8.626.4±7.8<0.00126.4±7.827.5±8.2<0.001
Augmentation pressure (mmHg)12.5±6.510.5±6.612.1±6.7<0.00112.1±6.713.5±6.8<0.001
PWV (m/sec)9.35±2.19.31±2.29.29±2.30.609.29±2.39.39±2.3<0.001
  • Data are presented as mean ± SD. SBP, systolic BP; DBP, diastolic BP; PP, pulse pressure; AIx, augmentation index; AIx(75), heart rate–adjusted AIx; PWV, pulse wave velocity.