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find Keyword "射频消融" 106 results
  • Precise ablation therapy for primary liver cancer

    In 2022, there were 367.7 thousands new cases and 316.5 thousands deaths of primary liver cancer in China. Radiofrequency ablation (RFA) is one of the radical treatments for liver cancer. It has the characteristics of definite curative effect, minimal invasion and low cost. In patients with early liver cancer, the curative effect is similar to surgical resection. The concept and practice of precision surgery provide new ideas for improving the efficacy of RFA. Based on the RFA treatment experience of more than ten thousand cases, the author’s team has carried out research on the precise ablation treatment of primary liver cancer. Now, the author will combine the existing literature and our team’s experience to discuss the application and prospect of the precise surgery concept in RFA treatment.

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  • Influence of Left Atrial Contraction on Lone Atrial Fibrillation Recurrence after Minimally Invasive Radiofrequency Ablation

    ObjectiveTo investigate influence of left atrial contraction on lone atrial fibrillation recurrence after minimally invasive radiofrequency ablation. MethodsClinical data of 57 patients with lone atrial fibrillation underwent minimally invasive radiofrequency ablation in Department of Cardiothoracic Surgery, Xinhua Hospital, Medical School of Shanghai Jiaotong University from September 2010 to December 2011 were retrospectively analyzed. According to the absence of mitral A velocity, patients were divided into Group A (absence of mitral A velocity, 20 patients with their age of 56.32±17.18 years, including 5 females) and Group B (mitral A velocity exists, 37 patients with their age of 60.33±11.22 years, including 17 females). Minimally invasive radiofrequency ablation via thoracoscope were performed in all patients. Preoperative and postoperative left atrial diameter (LAD), left ventricular ejection fraction (LVEF) and mitral A velocity, as well as clinical and follow-up data were recorded and compared. ResultsPreoperative clinical characters were not statistically different between two groups (P > 0.05). All the patients were followed up for 24.3±8.8 months (range, 12-26 months). Rate of postoperative atrial fibrillation recurrence in group A was significantly higher than that in group B (20.0% vs. 2.7%, P < 0.05). LAD and LVEF of 57 patients at 6 months after surgery were significantly higher than preoperative LAD and LVEF (P < 0.05), but there was no statistic difference between two groups (P > 0.05). ConclusionDamage of left atrial contraction was related to lone atrial fibrillation recurrence after minimally invasive radiofrequency ablation. Absence of mitral A velocity could be a crucial predictor of postoperative lone atrial fibrillation recurrence.

    Release date:2016-10-02 04:56 Export PDF Favorites Scan
  • Comparison of monopolar and bipolar radiofrequency ablation in patients with atrial fibrillation and concomitant rheumatic heart disease

    Objective To compare the effect of monopolar and bipolar radiofrequency ablation in patients with atrial fibrillation and concomitant rheumatic heart disease. Methods The clinical data of 261 patients who underwent valve replacement and radiofrequency Maze Ⅲ procedure in Shanghai First People's Hospital from 2010 to 2015 were retrospectively analyzed. According to the radiofrequency ablation system, patients were assigned to a monopolar radiofrequency ablation group (n=209, 129 males, 80 females, aged 59.6±9.7 years) and a bipolar radiofrequency ablation group (n=52, 36 males, 16 females, aged 58.6±11.2 years). After procedures, clinical factors such as patients' basic information, perioperative complication and mortality, the elimination rate of atrial fibrillation were measured. Results There was no statistic difference in perioperative morbidity and mortality between two groups. The ablation time of the monopolar radiofrequency ablation group was longer than that of the bipolar group (29.7±3.3 minvs. 22.3±7.8 min,P=0.035). Postoperative diameter of left atrium was reduced in both groups. Compared with the monopolar radiofrequency ablation group, bipolar group had a better elimination rate of atrial fibrillation at three months and one year follow-up (82.0%vs. 66.3%,P=0.037; 80.0%vs. 59.6%,P=0.008). Conclusion Valve replacement combined with radiofrequency Maze Ⅲ procedure is safe and efficient. Compared with monopolar radiofrequency ablation, bipolar radiofrequency ablation has advantage on elimination rate of atrial fibrillation, ablation time and cardiopulmonary bypass time.

    Release date:2017-03-24 03:45 Export PDF Favorites Scan
  • Analysis of Long-term Efficacy in Treating the Permanent Atrial Fibrillation Using Monopolar Radiofrequency Ablation Concomitant Cardiac Valve Replacement with Rheumatic Heart Disease and its Influencing Factors

    ObjectiveTo analyze the long-term efficacy and its influencing factors in the treatment of the permanent atrial fibrillation(AF) using monopolar radiofrequency ablation during concomitant cardiac valve replacement surgery with rheumatic heart disease. MethodsClinical data of the 116 patients with rheumatic heart disease and permanent AF who underwent modified maze procedure using monopolar radiofrequency ablation and concomitant cardiac valve replacement in the affiliated hospital of Qingdao university from October 2004 to December 2010 were collected and retrospectively analyzed, including 43 males and 73 females with their age of 50.5±7.5 years. Electrocardiogram (ECG) with 12-lead and echocardiography data, as well as the related complications, cardiac function and life quality were collected at the time of the immediately after the operation, discharge from hospital, 3 months, 6 months, 1 year postoperatively and every year after the operation. Patients were divided into eliminating group of AF (including sinus rhythm and nodal rhythm) and AF group according to the results of the ECG at the time of the ending follow-up. In the eliminating group of AF, there were 52 patients (16 males, 36 females) with their age of 48.4±7.3 years, and in the AF group, there were 50 patients (22 males, 28 females) with their age of 51.9±7.1 years. Analyzed the difference of the related factors between the two groups using statistical methods and tried to find the factors affecting the long-term clinical efficacy of the operation. ResultsThree patients died in hospital (one died of the hemolysis, acute renal insufficiency and hyperkalemia. One died of the multiple organ dysfunction syndrome caused by the acute renal insufficiency. And the other one died of the multiple organ dysfunction syndrome caused by the repetitive ventricular tachycardia and ventricular fibrillation on the day of the automatic discharge). Three patients died during the follow-up (one died after the reoperation because of the perivalvular leakage in other hospital, and the causes of death in the two others could not be catched). One patient occurred cerebral embolism, and the other one occurred cerebral hemorrhage in the af group during the follow-up. There was statistical significance between two group at the aspects of age, preoperative AF duration, preoperative left atrium diameter, time of the cardiopulmonary bypass and time of the cross-clamp ascending aorta. In multivariate analysis, age and preoperative left atrium diameter are risk factors affecting the long-term efficacy. ConclusionThe treatment of the permanent atrial fibrillation using monopolar radiofrequency ablation concomitant cardiac valve replacement with rheumatic heart disease is effective and has good long-term efficacy. The factors of affecting the long-term clinical efficacy are the patient's age and the diameter of left atrium.

    Release date:2016-10-02 04:56 Export PDF Favorites Scan
  • 射频消融治疗复发性肝癌的护理

    【摘要】 目的 总结89例复发性肝癌患者行经皮或开腹射频消融术围手术期的护理。 方法 2005年9月-2009年9月收治的89例复发性肝癌患者行经皮或开腹射频消融术,做好术前心理护理,术前指导及各项准备;术后严密观察病情及并发症预防,做好出院指导。 结果 81例顺利出院,经皮组出现发热2例、伤口感染2例、腹水1例,开腹组出现腹水、发热、房颤、胸水各1例,经治疗后出院。 结论 良好的围术期护理能有效地降低术后并发症的发生,减轻患者的痛苦,提高患者的生活质量,延长患者的生命。

    Release date:2016-09-08 09:52 Export PDF Favorites Scan
  • Novel Modified Epicardial Radiofrequency Ablation for Preoperative Atrial Fibrillation Combined with Aortic Valve Disease

    ObjectiveTo assess the effect of a novel modified epicardial radiofrequency (RF) ablation for preoperative atrial fibrillation (AF) combined with aortic valve disease. MethodsWe retrospectively analyzed the clinical data of 28 patients with AF and aortic valve disease underwent the novel modified epicardial RF ablation combined with aortic valve replacement (AVR) in our hospital between December 2009 and December 2014. There were 18 males and 10 females at age of 53-73 (64.9±4.8) years. The patients were performed epicardial atrial fibrillation RF ablation plus aortic valve replacement. ResultsThe modified epicardial RF ablation and AVR were performed successfully in all the patients. The maintenance of sinus rhythm was 96.4% (27/28) at discharge. There were no early death and permanent pacemaker implantation in perioperation. At a mean following-up of 29.2±17.7 months, 26 of 28 (92.9%) patients were in sinus rhythm. Following-up transthoracic echocardiography(TTE) at 6 months postoperatively showed that left atrial diameter was significantly reduced and left ventricular ejection fraction was significantly increased. ConclusionThe novel modified epicardial RF ablation procedure is safe, feasible, and effective. It may be useful in selecting the best ablation approaches for patients with AF and aortic valve disease.

    Release date:2016-10-02 04:56 Export PDF Favorites Scan
  • 心脏瓣膜置换同期应用双极射频消融术治疗心房纤颤患者的术后护理

    摘要:目的:总结54例心脏瓣膜置换同期应用双极射频消融术治疗心房纤颤患者的术后护理经验。方法:除做好瓣膜置换术后常规护理外,重视心律和心率的监测、电解质平衡的维持、应用胺碘酮的观察及护理、起搏器的观察、抗凝监测和健康指导与心理护理。结果:通过严密的监测和精心的护理,本组病例术后恢复良好,术后7~10 d出院。结论:做好心脏瓣膜置换同期应用双极射频消融术治疗心房纤颤患者的术后护理,认真观察患者瓣膜置换、消融术后心房纤颤治疗效果,为此类患者的生命质量提高提供了保证。

    Release date:2016-08-26 03:57 Export PDF Favorites Scan
  • Pulmonary Vein Stenosis after Radiofrequency Ablation for Atrial Fibrillation: Two Cases Report and Literature Review

    ObjectiveTo analyze the clinical presentations and radiological characteristics of pulmonary vein stenosis after radiofrequency ablation. MethodsClinical and radiological data of 2 patients with pulmonary vein stenosis after radiofrequency ablation for atrial fibrillation were retrospectively analyzed and literatures were reviewed. ResultsBoth patients had undergone circumferential pulmonary vein isolation. The symptoms appeared approximately 2 months after the operation. The major symptoms were cough, hemoptysis, exacerbation of dyspnea and chest pain. Both patients were misdiagnosed as other diseases such as pneumonia in other hospitals, and the anti-infection therapy was invalid. Both CT scans showed parenchymal exudative consolidation with varying degrees of interstitial septal thickening and small nodules. Both patients were confirmed as pulmonary vein stenosis by CT angiography. Literature review identified 21 cases of pulmonary vein stenosis after radiofrequency ablation for atrial fibrillation. The main clinical features are hemoptysis, chest pain, shortness of breath and cough. The most common features of thoracic radiological imaging are consolidation, groud-glass attenuation, pleural effusion and interstitial septal thickening. ConclusionsIf a patient presents with hemoptysis, dyspnea, chest pain or other clinical manifestations after ablation therapy and image findings show parenchymal exudative consolidation with interstitial septal thickening and multiple small nodules, the possibility of pulmonary vein stenosis should be considered. Contrast-enhanced CT combined with pulmonary vein imaging technology can clearly show the opening diameter of each pulmonary vein and its branches, so it is an important non-invasive examination method for the evaluation and diagnosis of pulmonary vein stenosis.

    Release date:2016-10-10 10:33 Export PDF Favorites Scan
  • How to do radiofrequency ablation for liver cancer

    Based on the experience of more than 10 000 times of radiofrequency ablation treatment and the clinical and basic research results of radiofrequency ablation treatment of liver cancer obtained during the period, the author shares the experience of radiofrequency ablation indication selection, preoperative preparation, concept of radiofrequency ablation and postoperative follow-up of liver cancer. The purpose is to explore how to improve the curative effect of RFA treatment for small liver cancer, and reduce local residue, recurrence, as well as relevant complications.

    Release date:2022-10-09 02:05 Export PDF Favorites Scan
  • 射频消融行保脾手术治疗体会(附24例报道)

    目的探讨脾外伤行射频消融保脾手术的适应证、手术特点及治疗效果。 方法脾外伤患者24例中,行腔镜下射频消融治疗9例,开腹对脾外伤裂口行射频消融止血或脾部分切除术15例(包括7例合并肝外伤)。 结果24例患者均顺利完成手术,手术时间(52±21)min(68~142)min。术后无明显出血、漏胆,腹腔感染等并发症发生,患者住院时间(5±2.1)d(4~16)d。 结论射频消融下保脾安全、可行,术后患者恢复快,住院时间缩短,不适为保脾手术的又一选择。

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