A3: Cooling Mechanisms Flashcards
1
Q
What is cooling mechanism?
A
Control excessive heating in target tissues during laser treatment
2
Q
Risk of darker and lighter Fitzpatrick regarding to not using cooling mechanism?
A
Darker: Chromophore target might attract epidermal surface tissue, cause epidermal heat accumulation and tissue damage
Lighter: Risk not high as darker Fitzpatrick due to low levels of melanin. cooling provide comfort
3
Q
Various forms of Cooling Systems?
A
- Cold air convection: cold air applied on tissue
- Contact cooling: cooling ages plates
- Dynamic cryogen cooling: cooling release in burst onto skin
- Manual gel packs: Precooled before treatment
4
Q
Benefits of cooling mechanisms?
A
- Reduce risk of epidermal heat accumulation and unwanted photo-thermolytic reaction
- Patients comfort
- Reduce risk of side effects (darker Fitzpatrick)
- Enhance clinical endpoints: also reduce erythema and oedema
5
Q
Disadvantages of cooling mechanisms?
A
- excessive = tissue damage
- noise during operation
