Baclofen pump: How it aids severe spasticity

Escrito por: Mr Sanj Bassi
Publicado: | Actualizado: 19/12/2023
Editado por: Laura Burgess

Baclofen pump is an implant used to treat involuntary muscle spasms (dystonia) and stiff or rigid muscles (severe spasticity). This article explains how it works in bringing spasm relief to cases of cerebral palsy, multiple sclerosis and other nerve diseases

 

 

Why would someone need to use the Baclofen pump?

 

As neurosurgeons, we see a wide variety of patients with different symptoms and diagnoses. In my practice, I often see individuals with conditions such as cerebral palsy and increased spasticity. Spasticity can be quite disabling and have a significant impact on quality of life.

 

Anything that causes damage to part of the brain can increase spasticities such as cerebral palsy, stroke, head injury and multiple sclerosis. Increased spasticity causes the muscles to go into spasm which can be extremely painful and quite distressing for the individual. Left untreated, the increased muscle spasms can have a considerable impact on daily activities including walking and using arms and legs.

 

What is Baclofen exactly?

 

In the treatment of these individuals, there may be the option of implanting an intrathecal Baclofen pump, which delivers a drug directly to the fluid around the brain and spine. This drug is known as Baclofen, which is a relative of Diazepam and works as a muscle relaxant. In fact, it is known as a Gaba (neurotransmitter) agonist which provides negative (inhibitory) impulses to the muscles, thus relaxing them.

 

How is Baclofen taken?

 

Baclofen can be taken by the mouth, however, only a small amount of the drug will go into the brain and spine. Therefore, oral Baclofen has quite limited benefits. If the dose of Baclofen is increased enough to improve the spasticity significantly, patients, unfortunately, suffer many side effects of the drug such as sleepiness and drowsiness.

 

Since 1998, it has been possible to deliver Baclofen directly into the brain and spine at a dose that is 1000 times less than that taken by mouth. This tiny dose of Baclofen is very effective in relieving spasticity and has none of the side effects of the oral version of the drug.

 

How does the Baclofen pump work?

 

The drug is delivered through a small pump which is the size of an iPhone 5. This pump is implanted in the fat of the tummy and a small tube (about the thickness of a pencil lead) is run from the pump into the spine. The operation to implant these is quite straightforward. The pump is then programmed by Bluetooth to deliver the drug continuously to the brain and spine thus improving the spasticity. The dosage can be changed and increased using the Bluetooth device.

 

What’s the shelf-life of a Baclofen pump?

 

The pump usually holds enough drug for about 4 months of treatment and then has to be refilled with the drug using a small needle. The refilling of the pump is probably very similar to having blood taken. These pumps have a limited battery life and usually need to be changed every 8 years.

Por Mr Sanj Bassi
Neurocirugía

El Sr. Sanj Bassi es un neurocirujano con base en Londres que tiene interés tanto en la neurocirugía de adultos como en la pediátrica. Practica en varias clínicas de la capital, incluido el hospital Bupa Cromwell y la London Neurosurgery Partnership.

El Sr. Sanj Bassi trata una amplia gama de afecciones, que incluyen tumores cerebrales , hemorragias cerebrales, hidrocefalia , malformaciones de chiari y dolor facial , así como problemas de la columna vertebral, como ciática, dolor de espalda , claudicación espinal y estenosis espinal. Fuera de su clínica, se dedica a la investigación y ha sido ampliamente publicado en importantes revistas revisadas por pares y forma parte integral de varios organismos profesionales como el Royal College of Surgeons.

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