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Treatment of bone tumours by radiofrequency thermal ablation.

Radiofrequency thermal ablation (RFTA) is considered the treatment of choice for osteoid osteomas, in which it has long been safely used. Other benign conditions (chondroblastoma, osteoblastoma, giant cell tumour, etc.) can also be treated by this technique, which is less invasive than traditional surgical procedures. RFTA ablation is also an option for the palliation of localized, painful osteolytic metastatic and myeloma lesions. The reduction in pain improves the quality of life of patients with cancer, who often have multiple morbidities and a limited life expectancy. In some cases, these

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… Subsequently, most reports on radiofrequency ablation of osteoid osteoma have described clinical success in 73–100% of patients, with few complications and a short hospital stay [ 11 , 18 , 19 ]. … Plasma-mediated radiofrequency ablation assisted percutaneous cement injection for treating advanced malignant vertebral compression fractures. AJNR. 2007;28:700–705. …

Percutaneous radiofrequency ablation for treatment of hepatoblastoma recurrence.

Radiofrequency ablation (RFA) has been widely reported as a minimally invasive treatment for liver tumours in adults, but has not been documented as a treatment for hepatoblastoma in a child. We report a 2-year-old boy with local recurrence of hepatoblastoma after partial hepatectomy. Percutaneous RFA was performed under real-time sonographic guidance. There was no imaging evidence of recurrence after a follow-up of 2 years. We consider this a promising technique in children.

Endovenous radiofrequency ablation for the treatment of varicose veins.

Chronic venous insufficiency (CVI) is the most common vascular disease and represents a significant health care problem in the United States. Reflux of the great saphenous vein is the most common cause of this condition, whose symptoms include varicose veins, leg swelling, skin discoloration, and ulceration. The traditional treatment of this condition is saphenofemoral ligation with stripping of the saphenous vein followed by varicose vein removal, if necessary. Recent advances in minimally invasive endovenous therapy have led to the development of catheter-based radiofrequency ablation (RFA) …

A case of splenic abscess after radiofrequency ablation.

Radiofrequency ablation (RFA) is an innovative technique used primarily for the palliative treatment of unresectable liver tumors. Its therapeutic indications however, have been expanded and now include various other organs and diseases. There is a paucity of data regarding technical details and complications of the use of RFA in the spleen. We report a case of partial splenectomy using radiofrequency ablation for splenic hydatid disease, complicated by an abscess formation.

[Combination application of radiofrequency ablation in nasal operation].

OBJECTIVE: To investigate the clinical efficacy of radiofrequency ablation in treating the inferior turbinates hypertrophic and allergic rhinitis after septoplasty or nasal polypectomy. METHOD: Ninety-one patients with nasal septum deviation or nasal polyp with inferior turbinates hypertrophic and(or) allergic rhinitis were underwent septoplasty or nasal polypectomy. Sixty-two cases of 91 patients with inferior turbinates hypertrophic or allergic rhinitis underwent radiofrequency ablation, 29 cases did not. The preoperative and postoperative nasal obstructions were investigated by visual anal…

Radiofrequency ablation of incessant atrial tachycardia in an infant.

Ectopic automatic atrial tachycardia, an uncommon type of supraventricular tachycardia in children and adults, has been reported to be resistant to medical therapy unlike reentrant supraventricular tachycardia. We report a case of incessant atrial tachycardia in an infant, which was successfully treated with radiofrequency catheter ablation.

Use of radiofrequency ablation in the modified maze procedure.

Atrial fibrillation secondary to long-standing mitral valve disease is very common. The maze procedure carried out along with mitral valve surgery reverts many of these patients back to sinus rhythm. Using radiofrequency ablation to carry out the maze procedure during mitral valve surgery gives results comparable to those from the Cox surgical maze procedure. We present our experience with 3 patients of rheumatic mitral valvular disease in whom radiofrequency ablation was used for the maze procedure.

[Radiofrequency catheter ablations of supraventricular tachycardias in Iceland.].

OBJECTIVE: During the last decade a new and successful treatment of supraventricular tachycardia - radiofrequency catheter ablations - gaine … the first time, but three needed re-ablation with transseptal puncture. Final success rate was 93%. Radiofrequency ablations of atrial flutter were started near the end of the study period. Three patients who all had considerable symptoms as well as episodes with atrial fibrillation were treated. Two relapsed, both getting atrial flutter as well as atrial fibrillation, o …

Selective reduction of acardiac twin by radiofrequency ablation.

OBJECTIVE: Acardiac/acephalic twinning is a rare anomaly in which a normal "pump" twin perfuses an acardiac twin, which results in twin reversed arterial perfusion sequence. A novel technique for selective reduction and obliteration of blood flow in the acardiac twin is described. STUDY DESIGN: Thirteen consecutive cases of monochorionic twin gestation with twin reversed arterial perfusion sequence underwent selective reduction of the abnormal twin with the use of radiofrequency ablation. Under direct real-time sonographic guidance, a 3-mm (14-gauge) radiofrequency ablation needle was percuta…

Architecture of the pulmonary veins: relevance to radiofrequency ablation.

BACKGROUND: Radiofrequency ablation of tissues in pulmonary veins can eliminate paroxysmal atrial fibrillation. OBJECTIVE: To explore the characteristics of normal pulmonary veins so as to provide more information relevant to radiofrequency ablation. METHODS: 20 structurally normal heart specimens were examined grossly. Histological sections were made from 65 pulmonary veins. RESULTS: The longest myocardial sleeves were found in the superior veins. The sleeves were thickest at the venoatrial junction in the left superior pulmonary veins. For the superior veins, the sleeves were thickest alo…

[Effects of radiofrequency catheter ablation in coagulation system].

OBJECTIVE: To investigate the pathogenesis and prophylactic therapy of peripheral vascular embolism after radiofrequency catheter ablation (RFCA). METHOD: 90 patients with supraventricular tachycardia (SVT) were divided into 3 groups. Group A did not use any anticoagulant before RFCA and group B used aspirin (ASA) before RFCA, group C used calcium channel blocker-amlodipine before RFCA. Blood samples were taken at 4 time points, i.e. before and after electrophysiologic examination, immediately after RFCA and 2 days after RFCA. For each blood example, blood levels of platelet alpha-granule mem

Cost-effectiveness of radiofrequency ablation for supraventricular tachycardia.

BACKGROUND: Radiofrequency ablation is an established but expensive treatment option for many forms of supraventricular tachycardia. Most cases of supraventricular tachycardia are not life-threatening; the goal of therapy is therefore to improve the patient's quality of life. OBJECTIVE: To compare the cost-effectiveness of radiofrequency ablation with that of medical management of supraventricular tachycardia. DESIGN: Markov model. DATA SOURCES: Costs were estimated from a major academic hospital and the literature, and treatment efficacy was estimated from reports from clinical studies at …

Thrombus formation at the site of radiofrequency catheter ablation.

A 55-year-old woman with a history of resected atrial myxoma with residual patched atrial septal defect (ASD) underwent a successful radiofrequency (RF) ablation of reentry atrial tachycardia. She presented with progressive dyspnea 5 days later. Transesophageal echocardiography revealed a 1-cm right atrial mass attached to the intraatrial septum at the ablation site. Repeat study after anticoagulation for 5 weeks showed complete resolution of the thrombus. Thrombus formation at the site of RF ablation is a potential complication that may require aggressive anticoagulation. Patients with patche

Radiofrequency catheter ablation of accessory pathways in infants.

OBJECTIVE: To evaluate the indications, results and complications of radiofrequency catheter ablation in small infants with supraventricular tachycardia due to an accessory atrioventricular pathway. METHODS: Five infants less than 9 months old underwent radiofrequency catheter ablation of accessory pathways. Ablation was done for medically refractory tachyarrhythmia associated with aborted sudden death in two patients, left ventricular dysfunction in one, failure of antiarrhythmic drugs in one, and planned cardiac surgery in one. All five patients underwent a single successful procedure. Thre

[Ablation of supraventricular tachydysrhythmias with direct and radiofrequency current].

Ablation therapy of tachycardias refractory to pharmaceutical preparations is considered in recent years the method of choice. In the submitted paper the authors give an account of 12 years experience with ablation treatment of supraventricular tachycardias. The group comprises 23 patients, who were subjected to ablation therapy by radiofrequency current (RF) on account of relapsing supraventricular dysrhythmias, resistant to medicamentous treatment (between May 1994 and February 1996). The mean age of the patients was 60.4 +/- 9.2 years. The historical control group is formed by 13 patients w

Radiofrequency catheter ablation of a nodoventricular Mahaim tract.

We report the case of a patient with both a left bundle branch block-preexcited tachycardia using a Mahaim bundle and a tachycardia exhibiting a left bundle branch pattern without preexcited complexes related to an AV nodal reentrant tachycardia. Successful ablation of the nodoventricular tract was obtained in the posteroseptal location in the AV node region. The pattern of Wolff-Parkinson-White (WPW) syndrome and both forms of tachycardia disappeared.