Radiofrequency Cautery Research Articles

LIVER ULTRASOUND IMAGING LESION DETECTION BASED ON YOLO

The liver is a silent organ with no pain-sensing nerves. When the body's functions begin to appear abnormal, it may have entered the trilogy of liver diseases: "hepatitis, cirrhosis, and liver cancer." An abdominal ultrasound is a powerful tool for checking liver health. With the rapid development of ultrasound technology, ultrasound machines are gradually developing in the direction of miniaturization and cheapness, transforming from hospital-specific equipment to home medical equipment. However, ultrasound diagnosis requires professional knowledge, which has also become the threshold for the popularization of ultrasound diagnosis. This article uses artificial intelligence and machine learning technology to take the liver ultrasound images marked by professional doctors as a data set. After training of image object detection model YOLO, it can be used to detect tumors, hepatic hemangioma, radiofrequency cautery, abscess and metastatic, the accuracy can reach 98%.

Study of Efficacy of Radiofrequency Cautery in Treatment of Xanthelasma

Study of Efficacy of Radiofrequency Cautery in Treatment of Xanthelasma

"Mole removal" on Instagram Hashtags: A Cross-sectional Analysis: Nevus Treatment Methods on Instagram.

IntroductionWith the increase in the use of social media, there is a steady increase in demand for medical, surgical, and cosmetic procedures. Dermatologists and other physicians are leaving their cosmetic practice to non-physician service providers to keep up with the growing demand for cosmetic procedures.ObjectivesTo examine the gender, professions, and the method of nevi treatment of the profiles using #bensilme and #moleremoval hashtags on Instagram and to investigate the extent of cosmetic procedures comparing Turkey’s situation with other countries.MethodsIn Instagram, the most frequently used hashtags about nevus treatment were scanned by two dermatologists. We recorded profession, gender, country of origin, and the treatment method of nevi of profiles sharing the related posts.ResultsThe countries with the highest share of the #moleremoval hashtag were the United Kingdom (15%), India (12%), and the United States of America (10.5%), and the proportion of physicians in these countries was 16.7%, 100%, and 71.4%, respectively. In the non-physician group, plasma pen method in our country is the most used method (Turkey: 97.9%, world: 75% respectively), but the use of radiofrequency cautery (world: 12.5%, Turkey: 1% respectively) and cryo pen (world: 7.5%, Turkey: 0.0%) methods were significantly more abroad.ConclusionsWe demonstrated that non-physicians mostly perform nevus destruction procedures. Physicians must use social media more actively to share educational, quality, and accurate information. We suggest that the hashtags used by physicians in their social media posts should be chosen from the words used in the folk language.

Successful ablation of giant condyloma acuminata in an adolescent

Condyloma acuminata are usually associated with persistent and recurrent infections and early surgical intervention is often required to prevent recurrences. The Buschke–Löwenstein tumor, a locally invasive, slow-growing, cauliflower-like growth, is an example of a giant condyloma acuminatum. Herein, we report a case of sexually-acquired perianal giant condyloma acuminata in a fourteen-year-old male successfully treated by electrofulguration with radiofrequency cautery under general anesthesia in a single session with no evidence of recurrence over a follow-up period of six months.

Re-pigmentation of Vitiligo Involving Angle of Lip Using Radiofrequency Cautery and Topical 5-Fluorouracil.

Vitiligo involving the angle of lip is a therapeutically challenging site because of the small and delicate area, high mobility, and lack of hair follicles. Dermabrasion combined with topical 5-fluorouracil cream has shown promising results in various studies involving different sites. Here we present a novel technique of using radiofrequency cautery for abrasion of epidermis followed by application of 5-fluorouracil cream. This technique has the advantage of being simple, easy, cost-effective with less downtime. A single session can yield excellent pigmentation in small areas such as the angle of lip.

Comparison of tonsillectomy by coblation and tonsillectomy by conventional method

<p class="abstract"><strong>Background:</strong> Operations on tonsils and adenoids are performed since many years. Tonsillectomy produces an open wound that heals by secondary intention. Tonsillectomy is still a very common surgical procedure. There are various modalities to perform surgery (diathermy, laser, harmonic scalpel, radiofrequency cautery, cryosurgery and coblation). Among these, dissection and snare method are commonly done by ENT surgeons.</p><p class="abstract"><strong>Methods:</strong> We carried out the prospective cross-sectional study to compare intraoperative blood loss, time taken for the surgery, post-operative pain score, degree of slough formation and complications between these two methods. </p><p class="abstract"><strong>Results:</strong> Average time for surgery on coblation side was less (15.1 min) than conventional side (36.04 min). For haemostasis on conventional side, all patients required bipolar cauterization while on coblation side only 8 patients (16%) required hemostasis. Average blood loss on coblation side (left) was 3.40ml while on conventional side (right) 25.57 ml. In my study, mean pain score on 1st day, 2<sup>nd</sup> day, 5<sup>th</sup> and 10<sup>th</sup> day of surgery was 6.18, 4.10, 2.30 and 1.64 on conventional side and 4.36, 3.00, 1 and 0 on coblation side. In my study, only one patient had Secondary haemorrhage on conventional side on 7<sup>th</sup> day.</p><p class="abstract"><strong>Conclusions:</strong> The use of coblator reduces the time required for surgery, per-operative blood loss is very much less, chances of damage to surrounding structures are less, charring of tissue is less, post-operative severity of pain after 24 hours is very much less than that of dissection method. Slough formation was more on coblation side as compared to conventional side.</p>

<p>Introduction of pulsed radiofrequency cautery in infraorbital nerve block method for postoperative pain management of trauma-induced zygomaticomaxillary complex fracture reduction</p>

Although various cases of neuralgia and its treatments have been reported, not enough evidence is present to recommend a single type of treatment as the most effective. The patient we have dealt with experienced significant interferences in his daily life due to chronic allodynia, but the symptom could not be resolved via previously reported treatments. We report a case of which a patient who presented infraorbital neuralgia after trauma was successfully treated by a novel treatment strategy. The patient was treated by applying infraorbital nerve block and pulsed radiofrequency cautery side by side. Through this report, we evaluate proper prevention and treatment strategies for patients who develop infraorbital neuralgia through similar etiologies.

The SPOT GRADE: A New Method for Reproducibly Quantifying Surgical Wound Bleeding.

Benchtop model with prospective surgeon video testing. To create a surface bleeding severity scale, the SPOT GRADE (SG), for quantitative assessment of target bleeding site (TBS) blood loss. This is of particular interest for spinal surgery due to epidural bleeding and an inability to use diathermy and radiofrequency cautery close to nerve roots. A novel apparatus perfusable at known flow rates and simulating different sized wounds was used to create movies to educate surgeons on specific degrees of bleeding. Training (36) and testing (108) videos were created using a benchtop apparatus employing different bleeding severities based on the six-level SG (none, minimal, mild, moderate, severe, and extreme) and TBS sizes (1, 10, and 50 cm). Fourteen surgeons in four specialties (cardiothoracic, abdominal, spine, and orthopedic lower extremity) were trained and tested to evaluate SG characteristics including inter-rater and intrarater reliability. The interclass correlation coefficient was estimated to be 0.89840 (95% confidence interval [CI]: 0.85771, 1), whereas the intraclass correlation coefficient was estimated to be 0.93673 (95% CI: 0.89603, 1). In 98% of cases (95% CI: 0.9736, 0.9927), surgeons correctly identified eligible bleeds for a future clinical trial (scores = 1, 2, or 3) and in 91% of cases (95% CI: 0.8895, 0.9344), surgeons correctly identified noneligible bleeds (scores = 4 or 5). In 98.6% of cases (95% CI: 0.9777, 0.9945), physicians correctly identified true hemostasis (score = 0). Based upon these data the probability of a physician rating a bleed incorrectly as hemostasis (score = 0) is estimated to be 1.51% (95% CI: 0.0061, 0.0363). This SG is reproducible and reliable providing a basis for educating surgeons on TBS blood loss. It appears to be a new standard for evaluating wound blood loss. 2.

Low-thermal coagulation of pulmonary bullae by general-purpose radiofrequency cautery device in pneumothorax surgery

Low-thermal coagulation of pulmonary bullae by general-purpose radiofrequency cautery device in pneumothorax surgery

Role of Radiofrequency Cautery in Laryngomalacia: a Study in 12 Patients

Laryngomalacia is the most common condition causing inspiratory stridor at or shortly after birth accounting for approximately 60% of cases. Inspiratory stridor typically occurs after few days or week and is initially mild, but over a period of 6-9months it gets more pronounced. Spontaneous improvement usually occurs over a period of 18months to 2years. Although majority of cases of laryngomalacia have benign course without any long-term sequel. Typically symptoms are worse during sleep and supine position while the same improves in prone position. There are 12 cases in the present study with the average age of the baby was 4.74months (142days). Male to female ratio of 1:1. Those babies with life-threatening apnea, significant cyanotic (blue) spells, failure to thrive with feeding difficulty, significant chest wall and neck retractions with breathing and requires oxygen to breathe were included in the study. One patient presented with tracheostomy tube in place. Two babies were preterm. These preterm babies were initially kept on ventilator before the final diagnosis was made. The findings were different in all the cases. The common findings are cyclical collapse of supraglottic larynx with inspiration, short aryepiglottic folds, indrawing of cuneiform and corniculate cartilages forward over the laryngeal inlet resulting in prolapse during inspiration. The surgical procedures in laryngomalacia babies were combined according to the type of laryngomalacia. The procedures performed were supraglottoplasty (Unilateral/Bilateral), epiglottoplasty, aryepiglottoplasty, aryepiglottic fold division, epiglottopexy. The procedures were performed by radiofrequency cautery under general anesthesia. The average hospital stay in nine patients was less then 36h and more then 7days in remaining three patients. In tracheostomized patient second surgical procedure was done as after the first procedure failed to decannulate the child. The postoperative period was uneventful. The average follow up was 10months.

Hemangioma de úvula: relato de um caso

O hemangioma é o mais comum tumor de origem vascular, benigno, freqüentemente diagnosticado em crianças, e com predileção pela cabeça e pescoço, mas que raramente tem origem na úvula. Neste órgão, apresenta risco de traumatismo local e sangramento. Este artigo relato um caso de hemangioma de úvula num adulto jovem com disfagia orofaríngea progressiva e sensação de corpo estranho na garganta, tratado com sucesso por ressecção cirúrgica do tumor com bisturi de radiofreqüência.

Surgical management of inferior turbinate hypertrophy in the office: Three mucosal sparing techniques

In the management of nasal obstruction, identification and treatment of inferior turbinate hypertrophy remains an important consideration for long-term improvement of nasal breathing. New technological advances have offered application of innovative surgical modalities to the management of inferior turbinate hypertrophy in the office. We describe 3 progressively more aggressive approaches to reduction of the submucosal vascular stroma of the inferior turbinates that can be performed in the office. Using radiofrequency cautery, ionized field ablation, and the powered microdebrider, these procedures are easily performed, usually successful, and have a high level of patient satisfaction. Based on an assessment of the patient's specific needs, otolaryngologists can use these techniques to improve a patient's nasal breathing without the expense or bother of a trip to the operating room.

The Role of Electrolyte in Lesion Size Using an Irrigated Radiofrequency Electrode

Multiple attempts have been made to eliminate atrial fibrillation by performing the surgical maze procedure with radiofrequency energy. Currently, this is limited because of the risk of atrial perforation and the lack of transmural penetration. Saline irrigation has been investigated as a method of radiofrequency cautery tip cooling to prevent rapid temperature and impedance rises, which have been shown to lead to perforation or decreased radiofrequency penetration after eschar formation. There are few data on the influence that different types of electrolyte irrigation solutions have on lesion depth. Using a novel hollow cautery pen, we infixed either an electrolyte solution (0.9%, 3%, 14.6%, or 23.4% sodium chloride), a nonelectrolyte solution (1.5% glycine), or no irrigation to produce 819 lesions on 14 left ventricles in swine using radiofrequency energy (450±10 kHz) applied at two output settings (20 and 75 watts). The nonelectrolyte solution increased lesion depth compared with no infusion at 20 watts but produced shallower lesion depths compared with electrolyte solutions at 75 watts. Compared with the other electrolyte solutions, the 0.9% sodium chloride solution produced the deepest lesions (3.34 ± 0.06 mm) at 75 watts (p < 0.001). As the concentration of electrolyte increased, lesion depth decreased unless generator output increased. Formation of eschar and tissue destruction was seen in the noninfusion and nonelectrolyte groups but not in the electrolyte group. A conductive media coupled with radiofrequency energy allowed for greater lesion depth than irrigated cooling with a nonelectrolyte solution or no irrigation. There was an inverse relationship between electrolyte concentration and lesion depth. We conclude that the concentration of electrolyte irrigant is an important consideration when choosing a solution to improve transmural penetration and decrease the risk of tissue destruction from radiofrequency energy.

Location of allatostatic centers in the pars lateralis regions of the brain of the Colorado potato beetle

Selective lesions in the pars intercerebralis and pars lateralis areas of the brain of the adult Colorado potato beetle were produced by radiofrequency cautery. The effect of these lesions on the corpus allatum activity, determined by the short-term in vitro radiochemical assay, revealed that gland inhibitory centers are located in the pars lateralis.

Enhancement of juvenile hormone biosynthesis in locusts following electrostimulation of cerebral neurosecretory cells

Electrostimulation of the medial neurosecretory cells of day-1 adult female Locusta migratoria resulted in a significant enhancement of juvenile hormone biosynthesis by the corpora allata within 2–3 days of the operation, as determined by a radiochemical assay for juvenile hormone biosynthesis. This elevation in the rate of juvenile hormone biosynthesis was also reflected in basal oöcyte length, with the oöcytes of stimulated animals significantly larger than the sham-operated animals. Radio-frequency cautery of the cerebral axonal tracts of the medial neurosecretory cells prevented this enhancement in juvenile hormone biosynthesis and in basal oöcyte growth in both stimulated and sham-operated animals. Stimulation of the lateral neurosecretory cells resulted in a slight elevation in rates of juvenile hormone biosynthesis 2 days after the operation. However, after cautery of the medial cell tracts, a significant elevation in juvenile hormone biosynthesis was observed 1 and 2 days after stimulation. Basal oöcyte length in stimulated animals differed significantly from sham-operated animals only on day 6. Cautery of the medial cell tracts again attenuated oöcyte growth. Our results suggest that the medial neurosecretory cells are the source of an allatotropin that can be released by electrostimulation. This substance appears to operate directly on the corpus allatum, causing a change in the juvenile hormone biosynthetic machinery.