INTRODUCTION
Ablative fractional resurfacing methods commonly used in the perioral area provide nowhere near the efficacy of full-field ablation.1 The unique absorption characteristics
of skin for the 2940 nm erbium wavelength make it more effective than full-field CO2 ablation while at the same time decreasing
associated recovery times, and avoiding the hypopigmentation,
and unnatural textural changes commonly seen after
full-field CO2 ablation.2,3
During the 1990s, ablative CO2 laser skin resurfacing largely supplanted chemical peels and dermabrasion because it gave physicians greater control over the depth of injury, and hence results.4 While full-field CO2 resurfacing can produce dramatic results, patients had to accept typically at least 2 weeks of healing
downtime, during which they experienced erythema (which could last for months), inflammation, and edema. Long-term sequelae often included permanent hypopigmentation, which has been reported to occur in up to 40% of patients at 6 months post-treatment with CO2.5
To avoid these problems, fractional photothermolysis was developed
to specifically ablate only a portion of the skin’s surface, creating microscopic channels of ablation separated by zones of undamaged tissue.6 However, the enhanced safety and healing of fractional CO2 photothermolysis comes at the price of lower
efficacy than many patients desire; therefore, often a series of a few or more laser treatment sessions are performed to try to see more significant results with fractional ablative technology.
This report details the advantages of full-field erbium ablation, a modality developed to try to help avoid the pitfalls of fully ablative
CO2 resurfacing while not sacrificing results, specifically in the perioral and periorbital areas.
METHODS
For pre-procedure anesthesia, the author typically uses an infraorbital
block for the peri-ocular area, and a lip sulcus ring block for the perioral area (with 2% lidocaine without epinephrine
to help visualize the endpoint of pinpoint bleeding).
To treat significant photodamage etched-in lines on the upper lip, the author performs 3 to 4 passes with a dual-mode erbium: yttrium-aluminum-garnet (Er:YAG) tunable resurfacing laser (Contour TRL, Sciton, Inc.) that allows separate tuning of tissue ablation and thermal coagulation (which mediates long-term collagen
remodeling). Using a computer scanned 4 mm spot, the laser is tuned to provide 150 μ of ablation, 0 μ coagulation per pass. Pinpoint bleeding that occurs at this juncture after 3-4 passes
should be gently wiped off. If etched lines remain, patients may require an additional pass at 150 μ ablation, 0 μ coagulation