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Monopolar radiofrequency

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https://www.readbyqxmd.com/read/29017400/minimally-invasive-method-to-activate-the-expiratory-muscles-to-restore-cough
#1
Anthony F DiMarco, Robert T Geertman, Kutaiba Tabbaa, Rebecca R Polito, Krzysztof E Kowalski
CONTEXT: Spinal cord stimulation (SCS) via disc electrodes surgically placed via laminotomy incisions has been shown to restore an effective cough in subjects with spinal cord injury (SCI). The purpose of this study was to evaluate a new method of expiratory muscle activation utilizing spinal cord wire leads, which can be implanted with minimally invasive techniques. METHODS: In a subject with SCI, parallel wire leads with two electrode contacts were inserted percutaneously through a needle, advanced to the T9, T11 spinal levels and connected to an implanted radiofrequency receiver...
October 11, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28940666/successful-treatment-of-trichoepithelioma-with-a-novel-insulated-monopolar-radiofrequency-microneedle-device
#2
J Y Hong, J Seok, J M Kim, Y J Jang, B J Kim
No abstract text is available yet for this article.
September 20, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28934795/comparisons-of-lesion-volumes-and-shapes-produced-by-a-radiofrequency-system-with-a-cooled-a-protruding-or-a-monopolar-probe
#3
David L Cedeno, Alejandro Vallejo, Courtney A Kelley, Dana M Tilley, Nitesh Kumar
BACKGROUND: Radiofrequency (RF) ablation for denervation has been utilized for decades in chronic pain management. This relies on the proper targeting of the affected nerve which may be obtained by creating an ablation lesion with a shape and volume that optimizes targeting. Various systems designed to improve lesion size are available. These include cooling the active tip (cooled-RF) and protruding the RF electrode outside the active tip (PERF). OBJECTIVES: This study compares lesion volumes of 3 commercially available RF systems: cooled-RF, "V" shaped active cannula and protruding electrode (18 g and 20 g), and monopolar RF (MRF; 16 g, 18 g, and 20 g)...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28902023/novel-modality-for-neck-rejuvenation-a-prospective-multicenter-trial-of-percutaneous-radiofrequency-ablation-of-the-cervical-branch-of-the-facial-nerve
#4
Daniel Rivlin, D Ryan Skinner, Christina Y Steinmetz-Rodriguez, Jordan S Fabrikant, Marie A Stoddard, Jeffrey J So, Shauntell J Solomon, Ronald L Moy
BACKGROUND: Neck rejuvenation offers few modalities of treatments limited to either invasive plastic surgery or temporary neuromodulation using botulinum toxin. OBJECTIVE: To access the efficacy, longevity, and safety of percutaneous monopolar radiofrequency (RF) ablation of the cervical branch of the facial nerve innervating the platysma for neck rejuvenation. MATERIALS AND METHODS: This prospective, multicenter trial enrolled 19 adult patients with noticeable platysmal banding at 2 different centers...
September 8, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28902019/a-randomized-evaluator-blinded-trial-comparing-subsurface-monopolar-radiofrequency-with-microfocused-ultrasound-for-lifting-and-tightening-of-the-neck
#5
Isabela T Jones, Isabella Guiha, Mitchel P Goldman, Douglas C Wu
BACKGROUND: Both subsurface monopolar radiofrequency (SMRF) and microfocused ultrasound with visualization (MFU-V) have demonstrated the ability to lift and tighten the neck. No head-to-head comparison study exists of these 2 technologies. OBJECTIVE: To compare the efficacy and safety of SMRF and MFU-V for the lifting and tightening of neck. MATERIALS AND METHODS: Twenty subjects aged from 18 to 65 with moderate neck skin laxity were randomized to receive either one treatment of SMRF or MFU-V...
September 8, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28895981/radiofrequency-thermocoagulation-for-the-treatment-of-lower-extremity-ischemic-pain-comparison-of-monopolar-and-bipolar-modes
#6
Dilek Destegül, Geylan Işık, Hayri Özbek, Hakkı Ünlügenç, Murat Ilgınel
OBJECTIVES: Radiofrequency thermocoagulation (RFT) has been reported to be used safely to treat ischemic lower extremity pain. The objective of the present study was to evaluate efficiency of RFT for treatment of lower extremity ischemic pain and to compare effectiveness of monopolar RFT and bipolar RFT modes. METHODS: Following ethics committee approval, 30 American Society of Anesthesiologists classification I-III patients with ischemic lower extremity pain aged between 18 and 65 years were recruited...
April 2017: Aǧrı: Ağrı (Algoloji) Derneği'nin Yayın Organıdır, the Journal of the Turkish Society of Algology
https://www.readbyqxmd.com/read/28860897/percutaneous-dual-switching-monopolar-radiofrequency-ablation-using-a-separable-clustered-electrode-a-preliminary-study
#7
Tae Won Choi, Jeong Min Lee, Dong Ho Lee, Jeong-Hoon Lee, Su Jong Yu, Yoon Jun Kim, Jung-Hwan Yoon, Joon Koo Han
OBJECTIVE: To prospectively evaluate the safety and therapeutic effectiveness of dual-switching monopolar (DSM) radiofrequency ablation (RFA) for the treatment of hepatocellular carcinoma (HCC), and to retrospectively compare the results with those of single-switching monopolar (SSM) RFA in a historical control group. MATERIALS AND METHODS: This study was approved by the Institutional Review Board, with informed consent obtained from all patients. Fifty-two HCC patients who underwent DSM-RFA using a separable clustered electrode and dual-generators were prospectively enrolled...
September 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28807250/a-systematic-review-on-radiofrequency-assisted-laparoscopic-liver-resection-challenges-and-window-to-excel
#8
REVIEW
Isabella Reccia, Jayant Kumar, Tomokazu Kusano, Artur Zanellato, Ahmed Draz, Duncan Spalding, Nagy Habib, Madhava Pai
Laparoscopic liver resection has progressively gained acceptance as a safe and effective procedure in the treatment of benign and malignant liver neoplasms. However, blood loss remains the major challenge in liver surgery. Several techniques and devices have been introduced in liver surgery in order to minimize intraoperative haemorrhage during parenchymal transection. Radiofrequency (RF)-assisted liver resection has been shown to be an effective method to minimize bleeding in open and laparoscopic liver resection...
September 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28805286/a-survey-on-monopolar-radiofrequency-treatment
#9
Dong Hye Suh, Eun Sun Hong, Hyun Joo Kim, Sang Jun Lee, Hei Sung Kim
This questionnaire-based study was aimed to measure the level of appreciation, awareness of the special tips, and practice patterns of monopolar radiofrequency among Korean dermatologists practicing a specific monopolar radiofrequency device (Thermage® Inc., Hayward, CA). A total of 82 surveys were analyzed to show that the majority of participants (78.8%) were highly satisfied with the outcomes of monopolar radiofrequency treatment. All respondents were aware of the Eye Tip 0.25 cm(2) , and the majority knew the difference between the Face tip (blue) and the Total tip (orange)...
August 14, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28721494/a-comprehensive-characterization-of-parameters-affecting-high-frequency-irreversible-electroporation-lesions
#10
Tyler Miklovic, Eduardo L Latouche, Matthew R DeWitt, Rafael V Davalos, Michael B Sano
Several focal therapies are being investigated clinically to treat tumors in which surgery is contraindicated. Many of these ablation techniques, such as radiofrequency ablation and microwave ablation, rely on thermal damage mechanisms which can put critical nerves or vasculature at risk. Irreversible electroporation (IRE) is a minimally invasive, non-thermal technique to destroy tumors. A series of short electric pulses create nanoscale defects in the cell membrane, eventually leading to cell death. Typical IRE protocols deliver a series of 50-100 µs monopolar pulses...
July 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28714203/posterior-cordotomy-in-bilateral-vocal-cord-paralysis-using-monopolar-microelectrodes-and-radiofrequency-in-18-patients
#11
J Basterra, Y Castillo-Lopez, R Reboll, E Zapater, C Olavarria, F Krause, R Hernandez, M Torres, F Tocornal
Posterior cordotomy is an option in the surgical treatment of bilateral vocal cord paralysis in adduction. We present results obtained in 18 patients with bilateral vocal cord paralysis in adduction treated using microelectrodes terminal with tips in several angles, and a radiofrequency generator from 2008 to 2013. The functional outcome was evaluated using postoperative spirometry, the decannulation time, and swallowing. All patients except one were successfully decannulated and showed an increase in mid-inspiratory flow rates...
July 17, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28678582/efficacy-of-monopolar-dielectric-transmission-radio-frequency-in-panniculus-adiposus-and-cellulite-reduction
#12
Manuel Albornoz-Cabello, Alfonso Javier Ibáñez-Vera, Blanca De la Cruz-Torres
INTRODUCTION: Despite high incidence rate of cellulite, there are few studies regarding its treatment. Most of them present non-validated evaluation tools. Radio frequency is a focused treatment very used in aesthetics to reduce it. OBJECTIVES: To know the efficacy of Monopolar Dielectric Radio frequency (MDR) treatment in dynamic applications to reduce cellulite, panniculus adiposus and gluteal and posterior thigh regions. METHODS: Experimental study consisting of inferior members of nine women...
November 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28670170/re-should-we-use-a-monopolar-or-bipolar-mode-for-performing-no-touch-radiofrequency-ablation-of-liver-tumors-clinical-practice-might-have-already-resolved-the-matter-once-and-for-all
#13
Olivier Seror, Olivier Sutter
No abstract text is available yet for this article.
July 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28665165/use-of-a-controlled-subdermal-radiofrequency-thermistor-for-treating-the-aging-neck-consensus-recommendations
#14
Anneke Andriessen, Brian M Kinney, Barry E DiBernardo, Jason Bloom, Dennis F Branson, Richard D Gentile, David J Goldberg, Paul Z Lorenc, Mark Nestor, Douglas Wu
INTRODUCTION: A new temperature-controlled device has been used as a percutaneous radiofrequency probe to treat lax submental and other facial areas. It has significant advantages over other aesthetic devices as it provides the dual benefit of fat lipolysis and skin tightening. Our goal here is to present consensus recommendations for treating the aging neck. METHODS: A panel of 11 expert physicians convened in Dallas, Texas on October 15, 2016 to arrive at a consensus on the best current practice for submental skin tightening and contour improvement...
June 30, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28556393/evaluation-of-the-safety-and-efficacy-of-a-monopolar-nonablative-radiofrequency-device-for-the-improvement-of-vulvo-vaginal-laxity-and-urinary-incontinence
#15
Shelena Lalji, Paula Lozanova
BACKGROUND AND OBJECTIVE: Vaginal childbirth, natural process of aging, congenital factors, and surgical interventions are considered the main causes of vulvo-vaginal laxity driven by changes in collagen and elastin fibers. This causes a loss of strength and flexibility within the vaginal wall. As a result, women may experience lack of sensation and stress urinary incontinence (SUI)-the condition of involuntary loss of urine associated with activities that cause an increase in intra-abdominal pressure (eg, sneezing, coughing, and lifting)...
May 29, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28485289/comparative-assessment-of-monopolar-and-bipolar-radiofrequency-surgery-of-inferior-turbinate
#16
RANDOMIZED CONTROLLED TRIAL
Hasan Emre Koçak, Bengül Altaş, Salih Aydın, Ümit Taşkın, Mehmet Faruk Oktay, Mustafa Suphi Elbistanlı, Ayşe Pelin Yiğider
OBJECTIVE: The aim of this study was to compare early outcomes of monopolar (MP) and bipolar (BP) radiofrequency (RF) treatment of inferior turbinate hypertrophy from the perspective of both the patient and the surgeon. STUDY DESIGN: Prospective, randomized, single-blind study. MATERIALS AND METHODS: Seventy-one patients with inferior turbinate hypertrophy resistant to medical treatment. BP RF was used in 36 patients and MP RF in 35 patients, respectively...
July 10, 2016: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28474275/comparison-of-mono-and-bipolar-radiofrequency-ablation-in-benign-thyroid-disease
#17
Yücel Korkusuz, Alexander Mader, Daniel Gröner, Shadi Ahmad, Oscar Maximilian Mader, Frank Grünwald, Christian Happel
PURPOSE: Radiofrequency ablation (RFA) is an approved minimal invasive method for the treatment of benign thyroid nodules. Several experimental, mainly ex vivo animal studies have compared the effectiveness of different RFA procedures in liver tissue. The aim of this retrospective clinical study was to evaluate the difference between monopolar and bipolar RFA in thyroid tissue considering thyroid volume reduction, patient discomfort and ultrasound evaluation. METHODS: Eighteen patients with symptomatic complex benign thyroid nodules were treated in a single RFA session...
May 4, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28474219/impact-of-radiofrequency-energy-on-intraoperative-outcomes-of-laparoscopic-colectomy-for-cancer-in-obese-patients
#18
Diletta Cassini, Michelangelo Miccini, Matteo Gregori, Farshad Manoochehri, Gianandrea Baldazzi
Nowadays laparoscopic approach is accepted as a valid alternative to open surgery for the treatment of colorectal cancer. Several studies consider this approach to be safe and feasible also in obese patients, even if dissection in these patients may require a longer operative time and involve higher blood loss. To facilitate laparoscopic approach, more difficult in these patients, several energy sources for laparoscopic dissection and sealing, has been adopted recently. The aim of this study is to investigate the possible intraoperative advantages of radiofrequency energy in terms of blood loss and operative time in obese patients undergoing laparoscopic resection for cancer...
May 4, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28445542/no-touch-radiofrequency-ablation-using-multiple-electrodes-an-in-vivo-comparison-study-of-switching-monopolar-versus-switching-bipolar-modes-in-porcine-livers
#19
COMPARATIVE STUDY
Won Chang, Jeong Min Lee, Jeong Hee Yoon, Dong Ho Lee, Sang Min Lee, Kyoung Bun Lee, Bo Ram Kim, Tae-Hyung Kim, Seunghyun Lee, Joon Koo Han
OBJECTIVE: To evaluate the in vivo technical feasibility, efficiency, and safety of switching bipolar (SB) and switching monopolar (SM) radiofrequency ablation (RFA) as a no-touch ablation technique in the porcine liver. MATERIALS AND METHODS: The animal care and use committee approved this animal study and 16 pigs were used in two independent experiments. In the first experiment, RFA was performed on 2-cm tumor mimickers in the liver using a no-touch technique in the SM mode (2 groups, SM1: 10 minutes, n = 10; SM2: 15 minutes, n = 10) and SB-mode (1 group, SB: 10 minutes, n = 10)...
2017: PloS One
https://www.readbyqxmd.com/read/28440238/thermal-ablation-of-pancreatic-cyst-with-a-prototype-endoscopic-ultrasound-capable-radiofrequency-needle-device-a-pilot-feasibility-study
#20
Maria Moris, Mustafa Atar, Abdurrahman Kadayifci, Murli Krishna, Ariston Librero, Eugene Richie, William Brugge, Michael B Wallace
BACKGROUND AND OBJECTIVES: Pancreatic cysts are evaluated by endoscopic ultrasound and fine needle aspiration (EUS). The only accepted treatment is pancreatectomy, which is associated with morbidity and mortality. This study evaluated the optimal thermal dosimetry of a novel radiofrequency ablation device using a standard electrosurgical unit in ex vivo cyst models. METHODS: A modified EUS 22-gauge monopolar needle prototype with a tip electrode connected to a standard electrosurgical unit (Erbe USA, Marietta, GA, USA) was used to induce a subboiling point temperature...
March 2017: Endoscopic Ultrasound
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