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Table 4 Comparison of hemodynamic and respiratory parameters between the two groups at different time points

From: Effect of intravenous lidocaine on the ED50 of propofol induction dose in elderly patients undergoing painless gastroscopy: a prospective, randomized, double-blinded, controlled study

  

Group L (n = 31)

Group N (n = 33)

P value

MAP

T0

89.94 ± 5.20

89.21 ± 5.17

0.579

T1

80.03 ± 10.93

70.79 ± 8.62

0.000*

T2

82.52 ± 12.36

79.88 ± 8.62

0.323

T3

85.58 ± 11.70

84.76 ± 7.79

0.740

HR

T0

80.97 ± 13.42

78.18 ± 14.78

0.434

T1

76.06 ± 10.94

72.45 ± 11.90

0.212

T2

73.68 ± 12.82

70.70 ± 11.13

0.324

T3

75.26 ± 12.33

72.82 ± 10.47

0.396

SpO2

T0

99(98, 100)

98(96.5, 100)

0.139

T1

100(100, 100)

100(99.5, 100)

0.821

T2

100(99, 100)

99(98, 100)

0.035*

T3

99(98, 100)

99(98, 99)

0.413

RR

T0

15(15, 16)

16(15, 16)

0.053

T1

11(11, 12)

12(11, 14)

0.054

T2

11(11, 11)

11(11, 12)

0.175

T3

14(12, 15)

14(13, 15)

0.230

  1. Values are expressed as the mean ± standard deviation or medians (IQR). Compared with group N
  2. MAP Mean arterial pressure, HR Heart rate, SpO2 Pulse oxygen saturation, RR Respiratory rate. T0 the baseline value, T1 after induction, T2 the end of gastroscopy, T3 awakening
  3. *p < 0.05