indication for catheter insertion;
contraindications to brachial plexus block (e.g., allergy to local anaesthetics, malignancy or infection in the area);
existing neurological deficit in the area to be blocked;
pregnancy;
history of neck surgery or radiotherapy;
severe respiratory disease;
chest deformity;
inability to understand the informed consent and demands of the study;
patient refusal.

NCT02916342_exc_T1
Procedure
catheter insertion
NCT02916342_exc_T2
Mood
indication
NCT02916342_exc_T3
Condition
contraindications
NCT02916342_exc_T4
Procedure
brachial plexus block
NCT02916342_exc_T5
Condition
allergy
NCT02916342_exc_T6
Drug
local anaesthetics
NCT02916342_exc_T7
Condition
malignancy
NCT02916342_exc_T8
Condition
infection
NCT02916342_exc_T9
Qualifier
in the area
NCT02916342_exc_T10
Scope
allergy to local anaesthetics, malignancy or infection in the area
NCT02916342_exc_T11
Scope
contraindications to brachial plexus block
NCT02916342_exc_T12
Condition
neurological deficit
NCT02916342_exc_T13
Temporal
existing
NCT02916342_exc_T14
Qualifier
area to be blocked
NCT02916342_exc_T15
Condition
pregnancy
NCT02916342_exc_T16
Temporal
history
NCT02916342_exc_T17
Procedure
neck surgery
NCT02916342_exc_T18
Procedure
radiotherapy
NCT02916342_exc_T19
Scope
neck surgery or radiotherapy
NCT02916342_exc_T20
Qualifier
severe
NCT02916342_exc_T21
Condition
respiratory disease
NCT02916342_exc_T22
Condition
chest deformity