Index
What is a Peripheral Nerve Block?
A peripheral nerve block is a medical procedure involving the injection of an anesthetic near specific nerves to numb a particular area of the body.
This technique is often used to manage pain during and after surgical procedures, particularly for limbs but also for other areas like the head, neck, back, abdomen, collarbone, and hip. It is also employed for managing chronic pain conditions.
Here is an overview of the procedure:
What is a Peripheral Nerve Block?
A peripheral nerve block is a medical procedure involving the injection of an anesthetic near specific nerves to numb a particular area of the body.
This technique is often used to manage pain during and after surgical procedures, particularly for limbs but also for other areas like the head, neck, back, abdomen, collarbone, and hip. It is also employed for managing chronic pain conditions.
Here is an overview of the procedure:
1.
Preparation
You will receive instructions on how to prepare, which typically include fasting and adjusting any medications you are taking.
Your doctor will also discuss your medical history, including any past issues with anaesthesia.
2.
Procedure
During the procedure, an ultrasound or nerve stimulator is used to locate the target nerves accurately.
The doctor numbs the skin with a small needle and then injects the anaesthetic near the nerve using a larger needle.
This process may involve some discomfort, but it is generally well-tolerated.
3.
During Surgery
Depending on the type of surgery, the nerve block might be used in conjunction with general anaesthesia or sedation.
Sometimes, the nerve block alone suffices to keep you comfortable and pain-free during the operation
What to Expect After a Peripheral Nerve Block
Post-procedure, most patients experience a significant reduction in pain almost immediately, though it can take a few days for some to feel the full effects.
Here’s a breakdown of what you can expect:
Immediate Effects
The affected area will be numb for several hours, typically 4 to 18 hours, depending on the specific nerves and the anesthetic used. You might experience tingling sensations as the block takes effect.
Recovery
You will be monitored until fully alert post-procedure and may be discharged once stable. Some soreness at the injection site is common, as are muscle spasms and a warm feeling in the numbed area.
Follow-Up
Your doctor will advise on when you can resume activities like driving and working. Typically, rest is recommended for at least a day following the procedure.
Benefits of Peripheral Nerve Blocks
Effective Pain Control
They provide excellent pain relief during and after surgery, often reducing the need for other pain medications that might have undesirable side effects like nausea or drowsiness.
Reduced Recovery Time
Patients often experience less postoperative pain and can resume normal activities more quickly.
Decreased Need for General Anaesthesia
In some cases, the nerve block can be used instead of general anaesthesia, which is beneficial for patients who have conditions making general anaesthesia risky.
Risks and Side Effects
While generally safe, peripheral nerve blocks do carry some risks, including:
- Bruising or bleeding at the injection site.
- Temporary nerve symptoms, like hoarseness or blurred vision.
- Rare but serious risks like infection, nerve damage, or complications if the anesthetic enters the bloodstream.
Peripheral Nerve Blocks FAQ
What is a peripheral nerve block used for?
A peripheral nerve block is used to manage pain during and after surgeries and for chronic pain relief.
What is a peripheral nerve block?
A peripheral nerve block is an injection of local anesthetic medication near a specific nerve or group of nerves. This numbs the area of the body served by those nerves, allowing for pain-free surgery or procedures.
How long does the effect of a peripheral nerve block last?
The numbness typically lasts between 4 to 18 hours, but the exact duration depends on the anesthetic used and the nerves targeted.
Are peripheral nerve blocks safe?
Yes, they are generally safe with minor risks like bruising and temporary nerve symptoms. Serious complications are rare.
Will I feel any pain during the procedure?
You may feel some pressure but not significant pain due to the local numbing before the main injection.
How long will a peripheral nerve block last?
The duration of a peripheral nerve block depends on the type of local anesthetic used and the specific block performed. It can typically last anywhere from a few hours to 24 hours or more.
