Do you or someone you know have stiff, twitching muscles in your limbs? Sometimes, even taking medication to relieve this stiffness doesn't help. So today we're going to talk about an advanced treatment for this type of severe muscle spasm (spasticity). It's called the Baclofen Pump. This name may be new to you, but it has many benefits. Let's take a look at what it is.
What is a Baclofen Pump?
Simply put, it's a small device that's surgically implanted into your body. It's made up of two parts:
- Pump: This is a round, flat metal disc, usually about an inch thick and three inches in diameter. This is where the medication is stored and released into the body when needed.
- Catheter: This is a thin, flexible tube that carries the medication from the pump to where it is needed, which is inside your spinal cord.
During surgery, the doctor will place this pump under the skin of your abdomen. Then, one end of the catheter will be connected to the pump and the other end to the fluid around your spinal cord. Doctors call this Intrathecal Baclofen Therapy (ITB) .
This pump has a battery, a reservoir, and a microprocessor. The doctor uses a small computer and a special device (wand) that is placed on your skin to program the pump. This means that the pump is instructed to give you the right amount of medicine, at the right time, and in the right way throughout the day.
So what is this medicine called Baclofen?
Baclofen is a skeletal muscle relaxant . It is a mainstay of treatment for conditions such as muscle stiffness (spasticity). When this medication is injected directly into the fluid surrounding the spinal cord, it does the following:
- Facilitates muscle movement.
- Controls frequent unwanted twitches and overactive reflexes.
- Reduces excessive muscle tone.
- Reduces muscle spasms.
There is a main reason why this method is more effective than oral pills. When you take medicine by mouth, it spreads throughout the body and reaches the spinal cord. Therefore, there are more side effects such as drowsiness and weakness. But because the pump delivers the medicine directly to the area where it is needed, you can get a big result with a very small amount of medicine . Therefore, the side effects are also very few.
What conditions is this pump used for?
This method is used to treat severe muscle stiffness (severe spasticity) caused by a number of diseases that affect the brain or spinal cord. Some examples are:
- Multiple Sclerosis
- Severe spinal cord injury
- Cerebral palsy
- Traumatic brain injury
- Stroke
Who is this baclofen pump best suited for?
If you have severe muscle stiffness and oral medications don't help, your doctor may consider this pump. But not everyone can have it implanted right away. First, you'll be tested to see if it's a good fit for you.
This test involves a small injection into your spine (spinal tap) and a very small amount of baclofen is injected into the fluid around your spine. The medical team will then monitor you for several hours. They will see how much the dose of the medicine reduces your muscle stiffness and how you feel. The effect of this medicine is temporary, but the information it provides is very important for the doctor to decide whether or not to implant a pump.
How is the surgery performed?
Once it's decided that you're a good candidate for the pump, a day is set aside for surgery. This is usually performed by a neurosurgeon or a doctor who specializes in pain management.
On the day of surgery, you will be fully anesthetized . This means you will not feel anything, you will be asleep. Then the surgeon will follow these steps:
1. A small incision is made on the skin of your abdomen, through which the pump is placed under the skin.
2. Then another small incision is made in your lower back, and the end of the catheter (tube) is inserted into your spinal cord.
3. Next, the catheter is connected to the pump in the abdomen under the skin.
4. The pump is filled with the required Baclofen medication.
5. Using a computer, you program the pump to deliver the medication as you want.
The entire surgery usually takes about two hours. You will need to stay in the hospital for a few days after the surgery. Sometimes, you may also be referred for rehabilitation treatments to help you get used to the pump and regain muscle strength before you go home.
How to control and maintain the pump?
It is very important to maintain the pump properly after it is implanted.
- Refills: The medication in your pump will eventually run out. Usually, you need to refill your pump every month to every six months . This involves your doctor injecting the medication into a special spot on your skin (the refill port) using a needle. Skipping a refill can be dangerous , as running out of medication can lead to severe withdrawal symptoms.
- Battery: The pump's battery usually lasts about 6-7 years . The pump will give an alarm when the battery is about to run out. Then another surgery is needed to remove the old pump and insert a new one. However, the catheter (tube) is not changed. This second surgery is much simpler than the first.
- Problems: If there is a mechanical failure or blockage in the pump or catheter, it will need to be surgically repaired or replaced.
If you have any suspicion that the pump is not working properly, call your doctor immediately .
Benefits, risks, and complications of this treatment
Like any medical treatment, it has benefits as well as some risks. Let's take a look at both.
| Benefit | Description |
|---|---|
| High success | A very effective way to control severe muscle spasms. |
| Continuous supply of medicine | Because the medication is given at the same time throughout the day, muscle stiffness is well controlled. |
| Fewer side effects | There are far fewer side effects (drowsiness, weakness) than oral medications. |
| Adjustable dose | You can program different doses of medication at different times of the day, depending on your needs. |
| Can be removed if necessary. | If necessary for some reason, the pump and catheter can be surgically removed. |
Possible Complications
- Surgery-related: incision infection, bleeding, bruising, cerebrospinal fluid leak.
- Pump-related: Pump malfunctions, catheter blockage or dislodgement, skin damage over the pump.
- Medication-related: Withdrawal or Overdose. These two are the most serious situations to watch out for.
The difference between withdrawal and overdose
Both of these conditions can be dangerous, so it's extremely important to be aware of the symptoms of both.
| Characteristic | Baclofen Withdrawal | Baclofen Overdose |
|---|---|---|
| Cause | ||
| Why is this happening? | Sudden cessation of medication delivery due to pump running out of medication, catheter blockage, or breakage. | Excessive amounts of medication entering the body due to an error in refilling or programming the medication. |
| Main Symptoms | ||
| Muscles | Very severe tightening, pulsating, rolling. | Extreme weakness , lifelessness, inability to move limbs. |
| Skin | Severe itching of the skin without any damage. | There is no particular difference. |
| Body temperature | I feel a little feverish. | Decrease in body temperature. |
| Other features | Heavy sweating, nausea, dizziness. | Severe drowsiness, low blood pressure, difficulty breathing . |
| Worst case scenario | Seizures. | Loss of consciousness, seizures. |
Warning: If any of the symptoms listed in the table above appear, it is a medical emergency . Without delay, take the patient to the nearest hospital Emergency Department (ETU) immediately.
When should I see a doctor?
If you have a baclofen pump implanted, you should maintain regular contact with your doctor.
Call your doctor in these cases:
If you notice signs of infection at the surgical site, notify your doctor immediately.
- Fever.
- Redness and swelling of the skin around the pump or incision.
- Fluid or pus draining from cuts.
- Pain in those places.
Go to the ETU immediately in these cases:
- Withdrawal symptoms mentioned in the table above.
- Symptoms of overdose mentioned in the table above.
Both of these conditions can be life-threatening, so prompt treatment is essential.
Take-Home Message
- The Baclofen Pump is an advanced treatment for severe muscle spasms (severe spasticity) that cannot be controlled with oral medications.
- Because this delivers the medication directly to the spinal cord, greater results can be achieved with less medication and fewer side effects.
- It is essential to refill the pump on time. Skipping this can lead to dangerous withdrawal symptoms.
- It is extremely important to be aware of the symptoms of withdrawal and overdose. These are medical emergencies.
- If you have any concerns or questions about your pump or any symptoms you are experiencing, consult your doctor immediately.
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