نتایج جستجو برای: fractionated microneedle radiofrequency
تعداد نتایج: 28518 فیلتر نتایج به سال:
Radiofrequency (RF) energy can be emitted into the skin, either non- or invasively, via a monopolar mode that utilizes an active electrode and a grounded electrode or via a bipolar mode that employs two active electrodes. In this experimental study of RF tissue reactions, bipolar RF energy was emitted in vivo to micropig skin at varying microneedle penetration depths, signal amplitudes, and con...
BACKGROUND Primary axillary hyperhidrosis (PAH) is a common condition with a great impact on the patient's quality of life (QOL). It is associated with serious social, emotional, and occupational distress. The aim of this study was to investigate the QOL in patients with PAH before and after treatment with fractionated microneedle radiofrequency (FMR). MATERIALS AND METHODS We evaluated 25 pa...
Background. A consistent treatment has not been proposed for treatment of Striae Alba (SA). The present study was designed to compare the fractionated microneedle radiofrequency (FMR) alone and in combination with fractional carbon dioxide laser (FMR + CO2) in the treatment of SA. Methods. Forty-eight pairs of SA from six patients were selected. Right or left SAs were randomly assigned to one o...
BACKGROUND Radiofrequency catheter ablation of atrial fibrillation (AF) guided by complex fractionated atrial electrograms has been reported to eliminate AF in a large proportion of patients. However, only a small number of patients with chronic AF have been included in previous studies. METHODS AND RESULTS In 100 patients (mean age, 57+/-11 years) with chronic AF, radiofrequency ablation was...
Introduction The preferential origin of atrial tachycardia (AT) is generally associated with specific anatomical atrial structures such as crista terminalis, tricuspid annulus, mitral annulus, and pulmonary veins. There are 3 major mechanisms of focal AT: enhanced automaticity, triggered activity, and microreentry. Focal AT can be eliminated via radiofrequency ablation with fairly good long-ter...
.........................................................................................................................2 INTRODUCTION ................................................................................................................6 CHAPTER 1 CHARACTERISTICS OF NOVEL MICRONEEDLE ARRAYS FABRICATED FROM HYALURONIC ACID ................................................................
1. The responses of starfish sperm flagella to mechanical stimulation with a microneedle were analysed. Flagellar movement was recorded by high-speed microcinematography and by stroboscopic observation. 2. The amplitude of the bending wave of a flagellum was restricted over its entire length when the microneedle was brought near to the flagellum at its proximal region. Beyond the restricted par...
BACKGROUND Metastatic cancer is the most common malignant disease of the skeletal system. Traditionally, conventional fractionated external beam radiotherapy has been the treatment of choice. Recently, minimally invasive surgical techniques (MISS) have been added to the therapeutic armamentarium. The purpose of our study was to assess the effectiveness and safety of Radiofrequency Heat Ablation...
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