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Table 1 Patient characteristics

From: Impact of ischemic preconditioning on surgical treatment of brain tumors: a single-center, randomized, double-blind, controlled trial

 

rIPC group (n = 27)

Control (n = 31)

General data

Age (years)

58.89 (±13.5)

54.77 (±13.9)

Sex (male/female)

12/15

17/14

BMI

25.73 (±6.18)a

25.42 (±4.12)b

Previous medical conditions

Arterial hypertension

6

10

Coronary artery disease

2

3

Hypothyroidism

6

3

Atrial fibrillation

1

0

Hypercholesterolemia

0

4

Previous stroke

0

0

Smokers

3

5

Ex-smokers

0

2

Regular medications

Aspirin

2

3

Beta blockers

4

2

Calcium channel blockers

3

1

ACE inhibitors

5

6

Anticoagulants

1

0

Anticonvulsants

10

14

Diuretics

4

3

Statins

3

2

Levothyroxine

6

3

Antidepressants

3

4

Other drugs

1

5

Clinical data

Patients undergoing first resection

10

15

Previous radiotherapy

8

9

Previous chemotherapy

10

10

Glioma patients previously treated with temozolomide

6

4

Glioma patients previously treated with CCNU

0

1

Preoperative Karnofsky (%)

90 (80–100)

100 (80–100)

Tumor location

Frontal

15

15

Temporal

6

9

Parietal

2

3

Basal ganglia

1

2

Other locations

3

2

Left hemisphere

10

11

Right hemisphere

12

14

Bilateral tumors

5

6

Surgical data

ASA PS 1

1

3

ASA PS 2

17

23

ASA PS 3

6

3

Surgery duration (h)

2.71 (±0.87)

2.62 (±0.9)

Use of intraoperative neuromonitoring (MEP/SEP)

20

19

Gross total resection

13

13

Near total resection

9

12

Subtotal resection

5

6

Intraoperative blood loss (ml)

300 (200–300)c

300 (200–600)d

Hypoxemia (SaO2 ≤ 92%)

1 e

0 f

Hypotension (MAP ≤65 mmHg)

1

4

Use of intraoperative corticosteroids

0

0

Intraoperative vessel damage

0

0

Histopathological findings in patients with glioma

LGG (WHO I and II)

3

4

HGG (WHO III and IV)

13

15

Glioblastoma

6

6

Gliosarcoma

0

1

Diffuse astrocytoma

2

3

Anaplastic astrocytoma

4

5

Oligodendroglioma

0

1

Anaplastic oligodendroglioma

2

3

Anaplastic oligoastrocytoma

1

0

Ganglioglioma

1

0

MGMT methylation

5

7

1p/19q codeletion

4

4

IDH1 mutation

7

10

Histopathological findings in patients with metastasis

Adenocarcinoma

6

4

Undifferentiated carcinoma

0

2

Melanoma

3

1

Squamous cell carcinoma

1

1

Other

1

4

  1. Data are presented as mean (standard deviation (SD)), median (interquartile range (IR)), or number of patients. BMI body mass index, ACE angiotensin-converting enzyme, CCNU lomustine, ASA PS American Society of Anaesthesiologists Physical Status classification, MEP/SEP motor- and somatosensory-evoked potential monitoring, MAP mean arterial pressure, LGG low-grade glioma, HGG high-grade glioma, WHO World Health Organization, MGMT O(6)-methylguanine-DNA methyltransferase, IDH1 isocitrate dehydrogenase 1
  2. aData obtained from 16 patients
  3. bData obtained from 20 patients
  4. cData obtained from 21 patients
  5. dData obtained from 27 patients
  6. eData obtained from 24 patients
  7. fData obtained from 29 patients