Nerve Block Techniques and Imaging Modalities
- Local Anesthetic Nerve Block
- Uses of Nerve Block
- Technique of Nerve Block
- Landmark-Guided Peripheral Nerve Block
- Ultrasound-Guided Peripheral Nerve Block
- CT-guided peripheral nerve block
- MRI-guided peripheral nerve block
Local Anesthetics and Mechanism of Action
- Common local anesthetics
- Mechanism of action
- Adjuvants
- Duration of action
Complications of Nerve Blocks
- Complications
- Complications of Nerve Blocks
- Local anesthetic toxicity
- Local anesthetic systemic toxicity (LAST)
- Other side effects
- Nerve injury
Neurolytic Block and Neurectomy
- Neurolytic Block
- Neurectomy
Regional Blocks
- Regional Blocks - Upper Extremity
- Regional Blocks - Lower Extremity
Nerve block or regional nerve blockade is any deliberate interruption of signals traveling along a nerve, often for the purpose of pain relief. Local anesthetic nerve block (sometimes referred to as simply "nerve block") is a short-term block, usually lasting hours or days, involving the injection of an anesthetic, a corticosteroid, and other agents onto or near a nerve. Neurolytic block, the deliberate temporary degeneration of nerve fibers through the application of chemicals, heat, or freezing, produces a block that may persist for weeks, months, or indefinitely. Neurectomy, the cutting through or removal of a nerve or a section of a nerve, usually produces a permanent block. Because neurectomy of a sensory nerve is often followed, months later, by the emergence of new, more intense pain, sensory nerve neurectomy is rarely performed.
Nerve block | |
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![]() Ultrasound guided femoral nerve block | |
ICD-9-CM | 04.81 |
MeSH | D009407 |
The concept of nerve block sometimes includes central nerve block, which includes epidural and spinal anaesthesia.