n =

%

Total anesthesias

39,477

Total TCHFJVs

1489

3.8

Bleeding

4

0.2

Skin emphysema (postoperative (po))

1

0.1

Failed intubation besides TCHFJV (intraoperative (io))

2

0.1

TCHFJV impossible due to pressure alarm (io)

2

0.1

Symptomatic pneumomediastinum (po)

2

0.1

Infection (po)

2

0.1

Other observations (io and po)

10

0.7

Total complications

23

1.5

Non-severe (grade 1, 2)

19

83

Severe (grade 3)

4

17

Very severe (grade 4)

0

0

Letal (grade 5)

0

0