Table 4 Pre-and postoperative Berg’s “Wisconsin” Card Sorting Test (BCST) assessment in the studied groups

Correct responses

Basal

89.45 ± 13.663

85.68 ± 12.451

0.053

Postoperative

86.40 ± 12.294

84.32 ± 10.880

0.229

Total errors

Basal

35.92 ± 13.049

39.20 ± 12.514

0.086

Postoperative

35.85 ± 12.967

39.03 ± 12.473

0.093

Completed categories

Basal

6.95 ± 1.336

6.59 ± 1.316

0.075

Postoperative

6.34 ± 1.470

5.88 ± 1.541

0.040

Perseverative response

Basal

43.69 ± 5.563

42.34 ± 5.281

0.095

Postoperative

44.88 ± 6.734

43.62 ± 6.013

0.183

Perseverative errors

Basal

18.45 ± 2.222

17.97 ± 2.420

0.162

Postoperative

18.64 ± 2.244

18.58 ± 2.539

0.877

Non-perseverative errors

Basal

18.52 ± 2.377

18.01 ± 2.248

0.142

Postoperative

19.70 ± 2.889

19.42 ± 2.667

0.489

Trials to 1st cat

Basal

8.31 ± 5.940

10.02 ± 6.143

0.057

Postoperative

8.91 ± 6.482

10.89 ± 6.634

0.043

Failure to maintain set

Basal

1.71 ± 1.642

2.08 ± 1.621

0.136

Postoperative

1.79 ± 1.786

2.41 ± 1.972

0.029

Conceptual level response

Basal

76.41 ± 20.259

74.37 ± 20.438

0.501

Postoperative

76.01 ± 19.806

70.55 ± 20.628

0.042

Reaction time

Basal

12835 ± 3889

13812 ± 4197

0.105

Postoperative

13623 ± 4195

15110 ± 4865

0.029

Abstraction time

Basal

250097 ± 88819

239503 ± 86460

0.416

Postoperative

242445 ± 94594

212507 ± 98560

0.038