Background: A bipolar fractional radiofrequency (RF) device was developed to generate cutaneous thermal injuries using a temperature-controlled microneedle electrode array.
Objective: Evaluate safety and efficacy of a novel subcutaneous microneedle RF for treatment of posterolateral thigh cellulite.
Methods: The study design was an institutional review board-approved multicenter clinical trial after a per-protocol analysis.
Background: A previous multicenter clinical trial of a needle-based fractional radiofrequency (FRF) treatment for facial and neck rhytides and laxity counterintuitively demonstrated a mean target temperature and treatment duration of 69.5 °C and 4.9 seconds for subjects with lesser improvement and 67 °C and 4.
View Article and Find Full Text PDFBackground: A minimally invasive fractional bipolar radiofrequency (FRF) was developed.
Objective: To evaluate safety and efficacy of FRF in reducing face and neck rhytides and laxity.
Materials And Methods: This prospective, open-label, multicenter clinical trial enrolled 100 subjects with mild to severe facial and neck rhytides and laxity at seven centers in a per-protocol analysis.
Background: The healing process of a novel radiofrequency bipolar system was recently shown to produce a profound increase in collagen and elastin content.
Objective: To determine the relationship between subjective clinical improvement scores and changes in objective measures of mechanical skin properties.
Methods And Materials: Elastometry measurements were made at baseline and 3 months after treatment.
Lasers Surg Med
September 2009
Background: A novel bipolar fractional radiofrequency (FRF) system with temperature feedback was recently developed for facial laxity and rhytid treatment. The study objective was to develop a model based on published in vivo human skin data that could be extrapolated to aid physicians in making future dosimetry choices under clinically relevant conditions.
Methods: A standard electrode pair designed for use with the FRF system was modeled using finite element analysis (FEA).
Introduction: Microwave ablation has been used clinically for the surgical treatment of atrial fibrillation, particularly during valve procedures. However, dose- response curves have not been established for this surgical environment. The purpose of this study was to examine dosimetry curves for the Flex 4 and Flex 10 microwave devices in an acute cardioplegia-arrested porcine model.
View Article and Find Full Text PDFBackground: Radiofrequency (RF) catheter ablation is an effective treatment for supraventricular tachycardia. The effectiveness of the technique is at times limited by the small lesion size produced by RF energy delivery. Previous reports have indicated that microwave energy is capable of producing a larger volume of heated tissue than radiofrequency energy, raising the possibility that microwave energy may offer a potential alternative energy source to radiofrequency for the substrate ablation of certain arrhythmias such as ventricular tachycardia or atrial flutter.
View Article and Find Full Text PDFBackground: Recently, there has been renewed interest in simplifying a surgical cure for atrial fibrillation. Microwave energy ablation provides an easier and faster surgical technique, in lieu of traditional "cut and sew," which can also be applied on the beating heart.
Methods: Specific absorption rate (SAR) and thermal profiles were determined after microwave energy ablation intended for clinical application.