Red lesions are caused by abnormal blood vessels that can result from a variety of conditions. Red marks or facial redness can be distracting and affect patients’ mood and self esteem. The most common conditions we see are
Vascular lasers target haemoglobin in blood vessels. The long pulse duration produces a photothermal effect that causes damage to the walls of the blood vessel. The body then naturally eliminates the damaged vessel.
Examples of such lasers include:
Generally, as the laser wavelength increases. absorption in haemoglobin and melanin decreases. The degree of scattering in the skin also decreases hence longer wavelength lasers would be able to penetrate deeper.
The most suitable vascular laser would depend on the characteristics of your skin and the targeted blood vessels. Longer wavelengths such as 940nm diode would be more suitable for larger or deeper vessels, thicker marks or patients with darker skin colour whereas shorter wavelengths such as the 585nm laser may be more suitable for small, bright red vessels close to the skin surface. Shorter wavelengths have more melanin absorption, hence they may have a higher risk of complications in dark skin types compared to longer wavelengths.
Intense Pulsed Light can be used with vascular filters to selectively target haemoglobin in the blood. Normal IPLs without vascular-specific filters (common in spas) would not be as safe or effective.
Intradermal neurotoxin has been reported to decrease the intensity and duration of erythema and rosacea flushing. Neurotoxins work as a neuromodulator at the neuromuscular junction and appears to interfere with normal acetylcholine signalling pathways to provide symptomatic relief even in refractory cases of rosacea.
Irritant medication solutions or foam are injected into blood vessels using super fine needles. The irritant solutions damage the walls of the vessels causing them to clot, collapse and eventually close. The body then absorbs the blocked vessels. It is less suitable for vessels on the face.
Insulated radiofrequency needles are used to puncture the skin along the course of the blood vessels and coagulate them while sparing the skin surface. The body then absorbs the damaged vessels.
Medications are mainly useful for rosacea
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