Transendoscopic contact neodymium:yttrium aluminum garnet laser excision of tracheal lesions in two horses.

This research paper details the successful use of a new technique, a contact neodymium:yttrium aluminum garnet laser (Nd:YAG laser), to treat tracheal lesions in two racehorses. The procedure was performed transendoscopically, resulted in rapid healing, and the lesions did not reappear.

Research Background

• The study focused on the treatment of two male racehorses who were diagnosed with intraluminal cervical tracheal lesions. Intraluminal cervical tracheal lesions are conditions inside the trachea, more precisely 60 to 70 cm from the nostrils (nares).
• These lesions can cause several health problems and, in severe cases, may even affect the performance of the racehorse. Therefore, quick diagnoses followed by effective treatment are often required.

Purpose of the Research

• The purpose of this research was to test a rather innovative technique, using a contact neodymium:yttrium aluminum garnet laser (Nd:YAG laser) with a chisel probe attached, to treat these tracheal lesions.

Research Methodology

• Transendoscopic procedures were carried out using the Nd:YAG laser. This means the entire operation was performed via the horse’s nose using a tool called an endoscope. This is a minimally invasive technique, which brings numerous benefits such as faster healing time, less trauma, and reduced chances of complications during and post-surgery.
• The laser was used to debride a non-healing tracheal ulcer and to excise a pyogranulomatous mass in the horses. Debriding is the process of removing damaged, dead, or infected tissue to improve the healing potential of the healthy surrounding tissue. Excising a mass refers to the surgical technique of removing it.

Results of the Research

• The results demonstrated that the surgical sites healed quickly, which showcases the beneficial properties of this minimally invasive procedure. Notably, the lesions did not redevelop, indicating that the treatment was effective in the long term.
• This pioneering use of the Nd:YAG laser for such a procedure in horses indicates that it could be a valid alternative for treating similar conditions, potentially reshaping the veterinary strategies for equine respiratory diseases treatment.