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Table 3 Electrolyte concentrations of K+ and iCa2+ in the four groups

From: Effects of dexmedetomidine on cardiac electrophysiology in patients undergoing general anesthesia during perioperative period: a randomized controlled trial

  

GroupD1 (n = 16)

GroupD2 (n = 18)

GroupD3 (n = 18)

GroupC (n = 17)

Pa

Pb

Pc

Pd

Pe

Pf

K+ (mmol/L)

T1

3.73 ± 0.20

3.72 ± 0.23

3.68 ± 0.18

3.80 ± 0.19

0.968

0.547

0.286

0.562

0.255

0.090

T2

3.78 ± 0.19

3.76 ± 0.21

3.74 ± 0.20

3.82 ± 0.21

0.778

0.606

0.615

0.810

0.422

0.299

T5

3.83 ± 0.21

3.79 ± 0.23

3.71 ± 0.18

3.81 ± 0.20

0.669

0.098

0.855

0.202

0.805

0.134

T6

3.85 ± 0.21

3.85 ± 0.23

3.72 ± 0.24

3.82 ± 0.29

 > 0.99

0.120

0.759

0.109

0.752

0.204

T7

3.88 ± 0.26

3.88 ± 0.30

3.83 ± 0.20

3.91 ± 0.25

0.969

0.587

0.733

0.604

0.696

0.368

PT1-2

0.841

 > 0.99

0.474

 > 0.99

      

PT1-5

0.282

0.903

 > 0.99

 > 0.99

      

PT1-6

0.104

0.057

 > 0.99

 > 0.99

      

PT1-7

0.172

0.121

0.153

0.760

      

PT2-5

 > 0.99

 > 0.99

 > 0.99

 > 0.99

      

PT2-6

 > 0.99

0.334

 > 0.99

 > 0.99

      

PT2-7

0.739

0.280

0.916

0.827

      

iCa2+ (mmol/L)

T1

1.15 ± 0.07

1.14 ± 0.03

1.13 ± 0.06

1.14 ± 0.04

0.434

0.193

0.515

0.588

0.900

0.510

T2

1.15 ± 0.06

1.14 ± 0.04

1.14 ± 0.06

1.14 ± 0.02

0.510

0.488

0.389

0.972

0.826

0.856

T5

1.15 ± 0.05

1.13 ± 0.04

1.13 ± 0.06

1.12 ± 0.02

0.327

0.247

0.148

0.852

0.614

0.749

T6

1.15 ± 0.04

1.14 ± 0.04

1.15 ± 0.06

1.12 ± 0.03

0.752

0.833

0.151

0.588

0.244

0.091

T7

1.16 ± 0.05

1.15 ± 0.04

1.14 ± 0.06

1.13 ± 0.03

0.677

0.148

0.085

0.285

0.174

0.756

PT1-2

 > 0.99

 > 0.99

0.201

 > 0.99

      

PT1-5

 > 0.99

 > 0.99

 > 0.99

0.747

      

PT1-6

 > 0.99

 > 0.99

0.306

0.573

      

PT1-7

 > 0.99

0.828

 > 0.99

 > 0.99

      

PT2-5

 > 0.99

 > 0.99

 > 0.99

0.878

      

PT2-6

 > 0.99

 > 0.99

 > 0.99

0.435

      

PT2-7

 > 0.99

 > 0.99

 > 0.99

 > 0.99

      
  1. Data are expressed as mean ± SD
  2. T1 before dexmedetomidine infusion, T2 dexmedetomidine loading dose finish, T5 1 h after surgery beginning, T6 surgery ending, T7 1 h after entering PACU
  3. PT1-2, PT1-5, PT1-6, PT1-7 for comparisons between T1 and T2, T5, T6, T7; PT2-5, PT2-6, PT2-7 for comparisons between T2 and T5, T6, T7; Pa, Pb, Pc, Pd, Pe and Pf for comparisons between groups D1 and D2, groups D1 and D3, groups D1 and C, groups D2 and D3, groups D2 and C, and groups D3 and C, respectively