Table 1 Important characteristics of the patient group

Age (in years)

65.2 ± 12.0

Female/ male (number)

17/24

Body mass index (in kg/m²)

26.1 ± 4.6

NYHA (number)^a

 0—not examined

4

 1—no problems

35

 2—irrelevant problems

0

 3—relevant problems

2

Vascular system (number)^a

 0—not examined

0

 1—no problems

20

 2—irrelevant problems

2

 3—relevant problems

19

Duration surgery (in min)

157.3 ± 99.9

Duration video recording (in min)

32.0 ± 7.2