The Benefit of Chilling in Argon-Laser Treatment of Port-Wine Stains

Abstract
Results obtained in argon laser treatment of [human] port-wine stains with and without preliminary chilling, noting that the success rate is considerably greater with the former procedure (68.6%) than with the latter (37.5%) (X2 = 4.37, P < 0.05). The effect of chilling was studied with special reference to the vitropressure test. Different hypotheses are presented to account for the difference and possible complications of the treatment are considered.

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