Anesthesia
Conditions
Keywords
Peripheral regional anesthesia, Loss and return of sensation
Brief summary
Peripheral regional anesthesia is the current gold standard of opioid-sparing perioperative analgesia, especially in shoulder, upper limb, and leg surgery. Axillary brachial plexus nerve block is one possible block for upper limb surgery. Loss and return of sensation require time and loss of sensation is supposed to spread from the proximal part to the distal part of the upper limb. Interestingly, until now there is no study about the return of sensation related to the anatomic region. The investigators hypothesize that the loss and return of sensation after axillary brachial plexus nerve block will first occur in the proximal part of the upper limb and last in the distal part.
Detailed description
Peripheral regional anesthesia is the current gold standard of opioid-sparing perioperative analgesia, especially in shoulder, upper limb, and leg surgery.(1-8) Axillary brachial plexus nerve block is one possible block for upper limb surgery.(4, 5, 9) Loss and return of sensation require time. It is known from clinical practice that loss of sensation occurs from the proximal part of the arm to the distal part of the upper limb. Interestingly, until now there is no study about the return of sensation related to the anatomic region. The investigators hypothesize that return of sensation after axillary brachial plexus nerve block will develop in the same direction like loss of sensation, what means from proximal to the distal part of the upper limb.
Interventions
OTHERAxillary brachial plexus nerve block: loss and return of sensation
Evaluating loss and return of sensation after axillary brachial plexus nerve block
Sponsors
Balgrist University Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No
Inclusion criteria
* Outpatients with planed surgery with axillary brachial plexus nerve block * Informed consent as documented by signature * Age ≥ 18 years
Exclusion criteria
* Patients with a known allergy towards the local anaesthetic
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Loss of sensation after axillary brachial plexus nerve block | Pre-surgery | A questionnaire will be used to record the loss of sensation in the upper limb. Sensation loss is recorded separately for the finger, hand, forearm, elbow, and arm. It will distinguish between initial and complete loss of sensation. |
| Return of sensation after axillary brachial plexus nerve block | Immediately after the surgery | A questionnaire will be used to record the return of sensation in the upper limb. Sensation return is recorded separately for the finger, hand, forearm, elbow, and arm. It will distinguish between initial and complete return of sensation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Block failure | Pre-surgery | Block failure yes or no |
| Amount of pain medication | Immediately after the surgery up to 2 days | Amount of pain medication after surgery, measured in mg |
| Pain before | Pre-surgery | Pain score (Numeric Rating Scale: 0 to 10) before loss of sensation after the axillary brachial plexus nerve block on a 0-10 scale, with zero meaning no pain and 10 meaning the worst pain imaginable. |
| Patients satisfaction with pain therapy | Immediately after the surgery | The patient will be asked to rate their satisfaction with the pain therapy on a scale from 0 to 10, with 0 indicating very dissatisfied and 10 indicating very satisfied. |
| Satisfaction of medical staff with the execution of the axillary brachial plexus nerve block | Immediately after the surgery | The medical staff will be asked to rate their satisfaction with the execution of the axillary brachial plexus nerve block on a scale from 0 to 10, with 0 indicating very dissatisfied and 10 indicating very satisfied. |
| Prolongation of hospitalization | Immediately after the surgery | The patient is expected to be an outpatient. If this does not occur, the days of hospitalization will be recorded. |
| Pain after | Immediately after the surgery | Pain score (Numeric Rating Scale: 0 to 10) after loss of sensation after the axillary brachial plexus nerve block on a 0-10 scale, with zero meaning no pain and 10 meaning the worst pain imaginable. |
Countries
Switzerland
Outcome results
None listed