Veterinary (VHBOT – veterinary
hyperbaric oxygen therapy) treatment benefit the post-operative
veterinary patient greatly. Immediate results include the reduction of
tissue swelling and inflammation - and the decrease in pain associated with
these processes.
Examples of surgical procedures
that have shown clinical benefit from Hyperbaric Oxygen Therapy
include:
• Gastric dilation and volvulus,
and the associated reperfusion injuries
• Fracture repair, especially
open fractures or those involving malunion or nonunion
• Amputations
• Gastrointestinal resection and
anastamosis, especially post-foreign body obstruction
• Skin grafts
• Hemilaminectomy
• Ear canal ablation
Early HBOT greatly improves the
prognosis for many acute conditions and decreases the likelihood of their
becoming chronic problems. Some examples of these conditions include:
1) Wounds - especially
degloving, necrotic, and non-healing wounds
2) Osteomyelitis
3) Neuropathies - including
nonsurgical intervertebral disc disease and limb paralysis/paresis
4) Necrotizing pancreatitis
5) Burns and smoke inhalation
6) Crush injuries
7) Head and spinal cord trauma
8) Peritonitis
9) Otitis - especially involving
pseudomonas as HBOT breaks down the organism’s defenses and greatly increases
drug penetration
Hyperbaric Oxygen Therapy & wound
healing:
Hyperbaric oxygen therapy produces a
directly proportional increase in the plasma volume fraction of transported
oxygen and delivery to the injured tissues. With increased cellular and muscle
pO2, the tissues become saturated with oxygen, assisting the healing process.
Hyperoxygenation allows for reversal of
localized tissue hypoxia, which may be secondary to ischemia or other factors
of the compromised, non-healing wound site. For the hypoxic wound, HBOT
corrects the pathophysiology related to oxygen deficiency and impaired wound
healing.
The failure of wound healing often is
due to persistent infection, malperfusion and hypoxia, cellular failure,
unrelieved pressure or recurrent trauma.
The key factor in HBOT's enhancement of the hypoxic wound
environment is its ability to establish adequate oxygen availability within the
vascularized connective tissue compartment that surrounds the wound.
Hyperbaric Oxygen Therapy in wound healing:
Action: The increased oxygen tension in tissues supports physiologic wound
healing, decreasing edema, enhances oxidative killing of bacteria, increasing
cellular energy production, antibiotic potentiation, neoangionenesis promotion,
enhanced epithelial migration, improved collagen production and
granulation-tissue formulation.
Benefits: When used as an adjunct treatment of modality can
significantly improve morbidity and mortality, reduce length of hospital stay,
reduces the need for surgical interventions, lessen the need for surgery or
amputations, reduces treatments costs, improves quality of life…
Neutrophils, fibroblasts, macrophages and osteoclasts all depend
on an oxygen-sufficient environment to adequately promote healing. Proper wound
healing is promoted with "improved leukocyte function of bacterial
killing, antibiotic potentiation and enhanced collagen synthesis," which
occurs during periods of increased tissue pO2.
Veterinary Hyperbaric Oxygen Therapy (VHBOT) is an important
adjunct tool in veterinary medicine. HBOT provides endless
possibilities, whether treating the equine athlete, the family pet or an exotic
animal species.
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