Publications by authors named "David A Kist"
Background: The 2,790 nm Er:YSGG wavelength has a lower water absorption coefficient than the 2,940 nm Er:YAG, but a higher coefficient than the 10,600 nm CO(2) laser. This allows ablative resurfacing with mild thermal coagulation, which may increase clinical efficacy while reducing patient downtime.
Objectives: To evaluate the efficacy and safety of the confluent 2,790 nm Erbium:YSGG (Pearl™, Cutera) laser for facial rejuvenation.
Article Synopsis
- The study evaluated the histological effects of a 2,940 nm fractional Er:YAG laser during abdominoplasty, focusing on microthermal zones (MTZs) using light and confocal microscopy.
- Three subjects received treatments at varying laser depths and coagulation levels, with biopsies taken immediately and up to two weeks post-treatment to assess collagen changes.
- Results showed consistent collagen remodeling in the dermis, but the expected relationships between laser settings and ablation depths were not observed, suggesting tissue hydration may affect outcomes.
Background And Objective: The treatment of skin with fractional devices creates columns of micro-ablation or micro-denaturation depending on the device. Since the geometric profiles of thermal damage depend on the treatment parameters or physical properties of the treated tissue, the size of these columns may vary from a few microns to a few millimeters. For objective evaluation of the damage profiles generated by fractional devices, this report describes an innovative and efficient method of processing and evaluating horizontal sections of skin using a novel software program.
View Article and Find Full Text PDF1. The authors' goal was to compare the size and density of Purkinje cells in the cerebellum of subjects with and without autism. Blocks of cerebellum were dissected at autopsy from the brains of age, sex- and postmortem-intervaled (PMI) groups of autistic and normal control individuals (N = 5 per group).
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