PDT in medical terms stands for Photodynamic Therapy, a treatment using light-sensitive medicine and a light source to destroy abnormal cells.
Understanding Photodynamic Therapy
Photodynamic therapy (PDT) is a medical treatment modality that utilizes a photosensitizing agent and a specific wavelength of light to generate reactive oxygen species (ROS), leading to cellular damage and death. It is used in the treatment of various conditions, including certain types of cancers, skin conditions, and eye disorders.
How PDT Works:
- Photosensitizer Administration: A photosensitizing drug is administered, which is absorbed by cells in the targeted area.
- Light Activation: A specific wavelength of light is applied to the area, activating the photosensitizer.
- Cellular Damage: The activated photosensitizer reacts with oxygen in the cells, producing reactive oxygen species (ROS) that cause cellular damage and destruction.
Conditions Treated with PDT
According to the NHS, Photodynamic therapy (PDT) can be used to treat:
- Some skin conditions.
- Some eye conditions.
- Certain types of cancer.
Advantages of PDT
- Targeted Treatment: PDT can selectively target abnormal cells while minimizing damage to surrounding healthy tissue.
- Minimal Invasiveness: It is a relatively non-invasive procedure compared to surgery.
- Repeatable: PDT can be repeated if necessary.
