Table 7: Relationship (correlation) between SAP. DAP. MAP. HR and regional cerebral oximetry (NIRS-left) change levels measured by Near Infrared Spectroscopy (NIRS).

SAP/NIRS-left

Group D

Group P

R

p value

r

p value

Before induction - after induction

-0.123

0.519

-0.199

0.292

Before induction - after intubation

0.121

0.525

-0.130

0.492

Before induction - 5. minutes

0.093

0.626

0.091

0.631

Before induction - 10. minutes

0.258

0.168

0.139

0.463

Before induction - 15. minutes

0.287

0.125

0.100

0.600

Before induction - 20. minutes

0.433#

0.017

-0.002

0.991

Before induction - 30. minutes

0.332

0.073*

0.025

0.892

Before induction - 45. minutes

0.508#

0.004

-0.047

0.803

Before induction - 60. minutes

0.406#

0.060*

-0.382

0.045

Before induction - 75. minutes

0.416#

0.076*

-0.308

0.163

Before induction - 90. minutes

0.481#

0.049

-0.359

0.189

Before induction - after extubation

0.038

0.844

0.487#

0.006

DAP/NIRS- left

Group D

Group P

R

p value

R

p value

Before induction - after induction

0.206

0.276

-0.031

0.871

Before induction - after intubation

0.181

0.339

-0.020

0.918

Before induction - 5. minutes

0.007

0.971

0.190

0.316

Before induction - 10. minutes

0.175

0.355

0.260

0.165

Before induction - 15. minutes

0.252

0.180

0.164

0.386

Before induction - 20. minutes

0.348

0.060*

0.252

0.180

Before induction - 30. minutes

0.425#

0.019

0.313

0.092*

Before induction - 45. minutes

0.477#

0.008

0.123

0.516

Before induction - 60. minutes

0.285

0.198

-0.001

0.997

Before induction - 75. minutes

0.617¥

0.005

-0.036

0.875

Before induction - 90. minutes

0.718¥

0.001

-0.035

0.902

Before induction - after extubation

0.097

0.610

0.424#

0.020

MAP/NIRS- left

Group D

Group P

R

p value

R

p value

Before induction - after induction

-0.164

0.387

-0.004

0.983

Before induction - after intubation

0.091

0.631

0.002

0.990

Before induction - 5. minutes

-0.043

0.820

0.290

0.121

Before induction - 10. minutes

0.252

0.179

0.253

0.177

Before induction - 15. minutes

0.301

0.106

0.179

0.343

Before induction - 20. minutes

0.362

0.049

0.153

0.419

Before induction - 30. minutes

0.401#

0.028

0.294

0.115

Before induction - 45. minutes

0.431#

0.017

0.135

0.476

Before induction - 60. minutes

0.572#

0.006

-0.035

0.861

Before induction - 75. minutes

0.609¥

0.006

-0.140

0.533

Before induction - 90. minutes

0.619¥

0.008

-0.197

0.482

Before induction - after extubation

-0.008

0.968

0.283

0.130

HR/NIRS- left

Group D

Group P

R

p value

R

p value

Before induction - after induction

-0.287

0.124

0.051

0.788

Before induction - after intubation

0.355

0.049

-0.073

0.701

Before induction - 5. minutes

0.406#

0.026

0.133

0.484

Before induction - 10. minutes

0.540#

0.002

0.017

0.930

Before induction - 15. minutes

0.548#

0.002

0.071

0.711

Before induction - 20. minutes

0.496#

0.005

0.017

0.930

Before induction - 30. minutes

0.330

0.075*

0.039

0.838

Before induction - 45. minutes

0.340

0.066*

0.014

0.940

Before induction - 60. minutes

0.243

0.275

0.100

0.611

Before induction - 75. minutes

0.454#

0.049

0.318

0.150

Before induction - 90. minutes

0.379

0.133

-0.098

0.729

Before induction - after extubation

0.274

0.143

0.336

0.069*

#These values show that there is a moderate relationship between SAP. MAP. DAP. HR and NIRS-left in the relevant time periods.

*These values are close to statistical significance. Therefore. it is defined as there is a tendency towards meaningfulness.

¥These values show that there is a high severity relationship between DAP. MAP and NIRS-left in the relevant time periods.

P values marked with dark black are statistically significant. D; desflurane. P; propofol