Nerve Block Treatment for Thoracic Outlet Syndrome (TOS)

Nerve Block Treatment for Thoracic Outlet Syndrome (TOS)


Nerve Block for NTOS. Thoracic Outlet Syndrome, TOS is
a term used to describe a group of disorders that occur when
blood vessels, or nerves, are compressed within a space
known as the thoracic outlet. The thoracic outlet is
the passage way between your collarbone and first rib. There are three types of TOS. Neurogenic, compression
of the brachial plexus, venous, compression of
the subclavian vein, and arterial, compression of
the subclavian artery. Depending on the type of TOS
you have, treatments range from physical therapy and
medication to surgery. The most common form or
TOS is neurogenic TOS, NTOS. This disorder can occur if there
are anatomical abnormalities, such as a rare cervical rib,
injury, or most commonly, repetitive arm
motion leading to compression of the interscalene triangle. Individuals with NTOS
often experience pain or numbness of the upper limb. When the recommended physical
therapy is insufficient, performing an interscalene
brachial plexus block using botox is another
non-surgical option. Landmarks are first identified
to locate the interscalene groove. Once the groove has been
located, a needle is inserted. This CT, or MRI,
guided procedure is performed by injecting Boculineum Toxin Type
A into the interscalene space. Thus relaxing the anterior and
middle scalene muscles and diminishing pressure on
the brachial plexus. While the effects are
short-lived, lasting about two to three months on average,
this treatment is an option for patients who are looking for
a non-surgical alternative.

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