Comparison of Chronic Hemodialysis Patients under Strict Volume Control with respect to Cardiovascular Disease

Table 2

Results of ambulatory blood pressure monitoring in nondipper and dipper patients.

Parameters	Nondipper (n=38)	Dipper (n=24)	p
	(Mean ± SD)	(Mean ± SD)
Beginning manual SBP (mmHg)	118.74 ± 15.12	105.42 ± 21.46	0.006
Beginning manual DBP (mmHg)	74.61 ± 15.10	65.83 ± 17.17	0.027
After dialysis manual SBP (mmHg)	97.37 ± 21.27	95.42 ± 21.87	0.654
After dialysis manual DBP (mmHg)	61.32 ± 15.10	58.75 ± 14,54	0.295
Average 48 h SBP (mmHg)	121.86 ± 12.83	112.92 ± 13.90	0.012
Average 48 h DBP (mmHg)	75.88 ± 10.82	64.58 ± 8.41	0.0001
Average 48 h MAP (mmHg)	91.24 ± 10.66	81.89 ± 11.33	0.002
Daytime SBP (mmHg)	122.36 ± 13.54	120.30 ± 18.57	0.615
Daytime DBP (mmHg)	76.51 ± 11.10	74.63 ± 16.31	0.589
Daytime MAP (mmHg)	91.75 ± 10.73	90.00 ± 16.46	0.613
Nocturnal SBP (mmHg)	119.18 ± 11.89	106.73 ± 16.27	0.001
Nocturnal DBP (mmHg)	74.20 ± 10.84	63.42 ± 13.39	0.001
Nocturnal MAP (mmHg)	89.38 ± 10.13	78.19 ± 13.81	0.001
Systolic dipping (%)	2.75 ± 5.70	13.56 ± 5.99	0.0001
Diastolic dipping (%)	4.29 ± 2.74	14.69 ± 5.10	0.0001
Average 48 h HR (beat/min)	77.20 ± 8.82	76.31 ± 8.15	0.693
Average daytime HR (beat/min)	79.92 ± 9.02	80.02 ± 9.46	0.967
Average nocturnal HR (beat/min)	72.49 ± 8.47	68.19 ± 6.75	0.040

SD: standard deviation, SBP: systolic blood pressure, DBP: diastolic blood pressure, MAP: mean arterial pressure, and HR: heart rate.