View clinical trials related to Radiofrequency Ablation.
Filter by:Background: Dexmedetomidine (DEX) is a highly selective 2-adrenergic receptor agonist with significant analgesia affection. This study is planned to explore the brain regions and functional neuronal network involved in promoting analgesia of Dexmedetomidine. Methods: Select 12 patients with the proposed intraoperative MR-guided radiofrequency ablation of epilepsy. The subjects were randomized into the Dexmedetomidine group (DEX group) (n=6) and the Opioid group (OPI group) (n=6). DEX group: continuous intravenously administered 1.5 µg kg-1 h-1 dexmedetomidine 15min before anesthesia induction, continuous infusion for 15min after anesthesia induction, and then Intraoperative functional magnetic resonance imaging scanning was started. OPI group: the equivalent administered speed 0.9% sodium chloride was continuously pumped for 15min before anesthesia induction, then induce and intraoperative fMRI scanning started after continuous 30min infusion. The intraoperative fMIR scan results were compared and analyzed to find the unique analgesic brain regions of DEX, and the differences of the functional neuronal network of analgesia effect between the two groups.
This study aims to analyse retrospectively the feasibility, the safety, and the efficiency, of biliary or digestive protection with room air interposition for thermal ablation of central liver tumors with high iatrogenic risk. Thermal ablation is a mini-invasive and curative treatement of liver tumors. However, it requires to be carefull about surrunding organs, such as digestive structures or central biliary tree, which can be injured if not insulated. The technique of gas interposition to protect adjacent gut is already known and validated with carbonic gas. Nevertheless, resorption of this gas is very fast, making its use tricky to keep a correct insulation during the whole thermal ablation process. Room air interposition is easy to use and can offer a slow resorption speed. Furthermore no datas are available concerning the use of room air whatever the organ protected, and the protection of central biliary tree whatever the gas used.
Knee osteoarthritis is a disease that increases in frequency with age and decreases the quality of life and physical activity by leading to a decrease in pain and joint range of motion. Basically, the articular cartilage is affected and clinically pain, joint stiffness, crepitation and effusion are seen. In imaging techniques applied with weight-bearing, varying degrees of joint narrowing are observed, although it is more common in the medial. Treatment options include conservative approaches such as weight loss, physical therapy, analgesics, or invasive approaches such as intra-articular injections, peripheral nerve blocks, joint-sparing surgery or total knee replacement. Surgical operation should be considered in the treatment when conservative treatments are insufficient. However, the advanced age of this patient group and the large number of comorbidities reduce the possibility of surgical operation. Although treatment cannot be cured in knee osteoarthritis, the aim of the treatment is to decrease the pain, increase the patient's quality of life and physical capacity, and slow down the progression of the disease. Although the radiofrequency ablation (RFA) technique has been used since the 1970s, the first application area was trigeminal neuralgia. Later, its use in neck and back pain became widespread, but the first randomized controlled study on its use in knee osteoarthritis was Choi et al. Made by in 2011. The purpose of radiofrequency ablation applied to the genicular nerves that receive the sensation of the knee joint capsule is to prevent sensory transmission and reduce the sensation of pain by creating axonal damage to these nerves. Since the use of RFA in knee osteoarthritis is relatively new, studies on the development of the technique continue. Fluoroscopy device or ultrasonography can be used as imaging method to show target nerves or to place the RFA electrode in the correct localization. The investigators hypothesis; based on the more prominent medial involvement in knee osteoarthritis, the conventional RFA procedure applied to the 3 genicular nerves (SMGN, IMGN, SLGN) is not superior to the RFA procedure applied to the medial SMGN and IMGN branches.
Contrast-enhanced ultrasonography (CEUS)-CT/MRI fusion imaging substantially improved the visibility of small tumors that were inconspicuous on both US and US-CT/MRI fusion imaging, contributing to successful percutaneous radiofrequency ablation.
In recent years, radiofrequency ablation has gradually become a first-line treatment for patients with atrial fibrillation. Radiofrequency ablation is an invasive procedure that lasts several hours, patients can experience varying degrees of discomfort and pain despite the use of analgesics. Mindfulness meditation requires the trainer to focus on breathing during the training process, while being non-critical and consciously observing various sensations on the body. It has a good effect in reducing pain, fatigue, negative emotions and strengthening coping with stressful events. With the rapid development of science and technology, meditation is no longer confined to traditional forms. The meditation method with the help of mobile communication technology and brain-computer interface technology can improve efficiency and convenience, and is more personalized. It has been recognized in many studies. The brain-computer interface is to establish a channel between the human brain and the computer that does not rely on conventional brain information output. Using techniques such as electroencephalogram, the spontaneous biopotential of the brain is amplified and recorded from the scalp. This study aims to explore the impact of mindfulness meditation with devices based on brain-computer interface technology on patients undergoing radiofrequency ablation of atrial fibrillation. In order to improve the negative experience of patients during ablation, ensure the safety of patients during ablation, promote postoperative recovery, and increase satisfaction. The pain intensity, fatigue level, anxiety and depression of the meditation group and the control group were compared by the scale. Record relevant vital signs and adverse events. The investigators hypothesized that the pain, fatigue, anxiety and depression of the meditation group would be lower than those of the control group.
The purpose of this study is to compare treatment of hyperthyroidism with radiofrequency ablation or I-131 for solitary autonomous thyroid nodules.
This study is a safety and feasibility study to determine if ultrasound guided radiofrequency ablation of parotid Warthin's tumor under local anesthesia is a safe and effective procedure compared to Parotidectomy while using less resources.
Oxygen supplementation through high flow nasal cannula (HFNC) may reduce the incidence of desaturation and hypoxemia during deep sedation at radiofrequency catheter ablation (RFCA procedures).This study is designed to test the hypothesis that the incidence of hypoxemia and desaturation in patients with atrial fibrillation undergoing RFCA under deep sedation, is less when using HFNC as compared to use of standard low flow nasal cannula (LFNC).
This study is a prospective multicenter study of the duration of treatment, the success rate, the frequency of complications, and the local recurrence rate of 12 months when Radio-frequency ablation therapy is performed for the treatment of HCC using the 'No touch' technique as a combined high-frequency transmission mode with Octopus electrodes. It aims to evaluate through. In addition, the results obtained from this prospective study were as follows: 1) Patients who underwent Radio-frequency ablation therapy by puncturing an existing tumor, and 2) Patients who underwent microwave ablation during the study period. The secondary goal is to evaluate which method is more effective in reducing the treatment time and recurrence rate compared to.
The rationale of the study is to explore the safety and efficacy of endoluminal radiofrequency ablation prior metal stent insertion in patiens with malignant biliary stenosis.