What Is Angiogenesis?
Angiogenesis is the process by which the body grows new blood vessels from existing ones. It is one of the most critical mechanisms in wound healing, tissue repair, and recovery from injury. When tissue is damaged, whether by a wound, surgery, radiation, or disease, the area needs increased blood flow to deliver oxygen, nutrients, and immune cells to the repair site.
In healthy individuals, angiogenesis occurs naturally during healing. But in patients with diabetes, vascular disease, radiation damage, or chronic wounds, this process is impaired. Without adequate blood vessel growth, tissues remain oxygen-starved and healing stalls. This is where hyperbaric oxygen therapy makes a profound difference.
How HBOT Stimulates Blood Vessel Growth
HBOT triggers angiogenesis through a fascinating mechanism. During treatment, tissues are flooded with oxygen under pressure. When the patient exits the chamber and returns to normal atmospheric pressure, a relative drop in tissue oxygen occurs. This cycling between high and normal oxygen levels sends powerful signals to the body's repair systems.
The intermittent hyperoxia stimulates the release of vascular endothelial growth factor (VEGF), a protein that initiates new blood vessel formation. It activates hypoxia-inducible factor pathways during the relative oxygen dip between sessions, further promoting angiogenesis. HBOT mobilizes bone marrow stem cells into circulation, which home to damaged tissues and differentiate into endothelial cells that form new vessel walls. And it upregulates nitric oxide synthase, which supports vessel dilation and new vessel sprouting.
Why This Matters for Patients
The clinical significance of HBOT-driven angiogenesis is enormous. For diabetic wound patients, new blood vessels restore circulation to tissue that has been chronically oxygen-starved, enabling wounds to finally close. For radiation injury patients, new vessel growth replaces the vasculature destroyed by radiation, reversing progressive tissue breakdown. For TBI patients, improved cerebral blood vessel density means better oxygen delivery to the brain.
This is not a temporary effect. Research shows that the new blood vessels created during HBOT treatment persist long after the treatment course ends, providing lasting improvements in tissue oxygenation and function. Explore the evidence on our HBOT research library.
Experience the Difference
At National Hyperbaric, angiogenesis is one of the key therapeutic mechanisms we harness for our patients. Whether you are dealing with a chronic wound, radiation damage, or another condition involving compromised blood flow, HBOT can help your body build the new vascular infrastructure it needs to heal. Our team, led by Dr. Allan Spiegel, provides medical-grade HBOT at pressures proven effective in clinical research. Contact us for a free consultation and review our cost and insurance information.