BACKGROUND In this article we reported results obtained in our previous studies concerning application of radiofrequency (RF) in proctology and in particular for hemorrhoids treatment. METHODS We compared radiofrequency submucosal hemorrhoidectomy (RSH) and conventional Parks' hemorrhoidectomy (CPH) (group 1), radiofrequency open hemorrhoidectomy (ROH) and Milligan-Morgan hemorrhoidectomy (MM...

This paper was to analyze and contrast the damage rate on the thoracic segment different position of the dorsal root ganglion(dorsal root ganglion, DRG) caused by different puncture path in radiofrequency ablation, thus the best RF target way for the thoracic segment of different types of DRG was confirmed. According to the difference of puncture and ablation damage way, 14 segmental spinal spe...

We experimentally investigate the outcoupling of atoms from Bose-Einstein condensates using two radiofrequency rf fields in the presence of gravity. We show that the fringe separation in the resulting interference pattern derives entirely from the energy difference between the two rf fields and not the gravitational potential difference between the two resonances. We subsequently demonstrate ho...

Evaluation of atherosclerotic plaque composition and morphometry may yield insight into plaque biology and the mechanisms of plaque-associated thrombosis. Analysis of intravascular ultrasound radiofrequency (IVUS-RF) backscatter signal is one technology that provides in vivo assessment of both atherosclerotic plaque composition and morphometry. We summarize three different approaches to IVUS-RF...

Objective: Many different surgical approaches at the level of the palate for obstructive sleep apnea (OSA) exist. The functional expansion pharyngoplasty (FEP) was first described 2013. The objective of this study is to evaluate the efficiency of FEP in comparison with radiofrequency-tissue volume reduction of the soft palate (radiofrequency uvulopalatopharyngoplasty, RF-UPPP). Methods: 40 pati...

Background: Radiofrequency (RF) catheter ablation is an effective method of treatment of patients with WPW syndrome. The purpose of this study was to analyze the initial and follow -up results of RF ablation of such cases in our hospital. Methods: 255 cases with WPW syndrome that had delta wave in sinus rhythm ECG underwent electrophysiological studies in this hospital. All the cases underwent ...

Radiofrequency (RF) and intense focused ultrasound (IFUS) are increasingly used to address skin laxity of the face and neck. Both nonablative RF and ultrasound create a heat-induced tissue response that leads to collagen remodeling and other ultrastructural changes. Although these treatments are not meant to replace surgical procedures, patient satisfaction in the majority of studies has been c...

A patient underwent radiofrequency (RF) catheter ablation for a drug-refractory ventricular tachycardia, but RF energy application at an endocardial site of the left ventricular outflow tract and at the left sinus of Valsalva could not eliminate the tachycardia. The earliest ventricular activation during the arrhythmia, which preceded the onset of the QRS complex by 32 ms, was found within the ...

Introduction The aortic cusp has been recognized as a target of radiofrequency (RF) ablation in patients with ventricular arrhythmias. In some patients, ventricular arrhythmias have been mapped well into the ostial coronary arteries rather than the coronary cusps. Coronary artery stenosis is one of the most serious complications of RF ablation. This is the first case report describing severe ri...

Background Left atrial (LA) radiofrequency (RF) ablation has become routine treatment for atrial fibrillation (AF) but still suffers from AF recurrence requiring a repeat procedure. LA-RF ablation success rates vary between 53% and 85%. Delayed-enhancement Cardiac Magnetic Resonance (DE-CMR) can be used to noninvasively visualize LA hyperenhancement (scar). We have utilized DECMR to quantify LA...