Objective To investigate the value of contrast enhanced ultrasound (CEUS) in evaluating the short term therapeutic response to radiofrequency ablation (RFA) of primary hepatocellular carcinoma. Methods One hundred and ten lesions were studied in 96 patients. Each patient underwent CEUS within a week before RFA, the number, size, border, inner echo and perfusion pattern of lesions were observed. One month after ultrasound-guided RFA, color Doppler flow imaging, CEUS and contrast enhanced computed tomography (CECT, reference standard) were performed to assess the therapeutic response. Results Before RFA, in 96 cases with 110 lesions, 83 lesions showed homogeneous hyper-enhancement and the other 27 heterogeneous hyper-enhancement in arterial phase, and 98 lesions were hypo-enhanced in portal venous phase and late phase and the other 12 iso-enhanced. One month after RFA, 99 of 110 lesions were found no-enhancement in entire CEUS procedure, while 11 lesions showed local enhancement on the edge of lesion. Ninety-six of 110 lesions showed no-enhancement and other 14 with irregular enhancement by CECT. There was no statistical significance between CEUS and CECT (χ2=0.406, Pgt;0.05). Fourteen lesions as tumor residual by CECT were underwent RFA again, and then 1 month after RFA no-enhancement was showed by both CECT and CEUS. Conclusion CEUS can play a role in assessing the short term therapeutic response to RFA of hepatocellular carcinoma.
Objective To study the short-term outcome and safety of radiofrequency ablation (RFA) combined with recombinant human endostatin (endostar) for non-small cell lung cancer (NSCLC) patients. Methods Between December 2013 and December 2014, 80 consecutive patients (50 males, 30 females) with biopsy-proved NSCLC were divided into two groups: a RFA combined treatment group (RFA combined with endostar, 60 patients, 38 males, 22 females, mean age at 67.77±10.43 years) and a RFA alone group (20 patients, 12 males, 8 females, mean age at 67.35±9.82 years). The RFA combined treatment group was divided into three groups according to vascular normalization window of endostar and 20 patients in each group: a combined treatment group 1 (transfusion of endostar after RFA), a combined treatment group 2 (transfusion of endostar for 1 to 3 d before RFA) and a combined treatment group 3 (transfusion of endostar for 4 to 7 d before RFA). The CT scan of the chest was followed up after the treatment, local recurrence and safety was observed. Results There was a statistical difference in local recurrence time among groups (χ2 = 11.05, P = 0.011). The effect of the combined treatment group is better than that of the radiofrequency ablation therapy alone group. And in the recombinant human endostatin of tumor vascular normalization time best combination therapy was observed in the near future effect compared with the radiofrequency ablation therapy alone. In this study common complications were associated with radiofrequency ablation. No recombinant human endostatin related complication was found. There was no satistical difference in safety between the combined treatment group and the radiofrequency ablation therapy group (χ2= 0.889, P > 0.05). Conclusion RFA combined with endostar is safe and effective for non-small cell lung cancer.
Objective To compare short-term clinical outcomes of bipolar/unipolar radiofrequency （RF） ablation for the treatment of permanent atrial fibrillation（AF） of patients with rheumatic valvular heart disease. Methods Clinicaldata of 124 patients with rheumatic valvular heart disease and permanent AF who underwent heart valve replacement and concomitant bipolar/unipolar RF ablation in Wuhan Asia Heart Hospital from February 2011 to December 2011 were retros- pectively analyzed. According to different RF ablation methods，all the 124 patients were divided into bipolar group and unipolar group. There were 62 patients in the bipolar group including 29 males and 33 females with their age of 44.20±8.61 years，and 62 patients in the unipolar group including 33 males and 29 females with their age of 46.40±9.48 years. Electrocardiogram examinations were performed at the time of intraoperative heart re-beating，the very postoperative day，7 days，1 month，3 months and 6 months postoperatively to detect restoration of sinus rhythm. Results There was no in-hospital death or ablation-related complication in either group. Aortic cross-clamp time（70.05±22.02 min vs. 54.47±20.65 min，P=0.025） and RF ablation time（25.12±3.00 min vs. 15.70±3.02 min，P=0.000）of the bipolar group were significantly longer than those of the unipolar group. At the time of intraoperative heart re-beating，the lst and 7th day after operation， sinus rhythm restoration rates were 88.71%，87.10%，80.65% respectively in the bipolar group，85.48%，77.42%，72.58% respectively in the unipolar group，and there was no statistical difference between the two groups （P＞0.05）. In the 1st，3rd and 6th postoperative month，sinus rhythm restoration rates of the bipolar group （79.03%，75.81%，72.58% respectively） were significantly higher than those of the unipolar group （59.68%，50.00%，48.38% respectively，P＜0.05）. Conclusion Clinical outcomes of RF ablation for the treatment of permanent AF of patients with rheumatic valvular heart disease are satisfactory. Unipolar RF ablation has the advantage of being time-saving and easier technique，while short-term sinus rhythm restoration rate of bipolar RF ablation is higher than that of unipolar RF ablation for the treatment of permanent AF.
ObjectiveTo evaluate surgical outcomes of combined off-pump coronary artery bypass grafting (OPCAB)and bipolar radiofrequency ablation (RFA)for atrial fibrillation (AF). MethodsFrom January 2008 to October 2013, 49 patients with coronary artery disease and AF underwent OPCAB and concomitant Atricure bipolar RFA for AF in Beijing Anzhen Hospital. According to their AF duration, all the 49 patients were divided into 2 groups. In group A, there were 14 patients with permanent AF including 9 males and 5 females with their age of 56.7±7.5 years. In group B, there were 35 patients with paroxysmal AF including 27 males and 8 females with their age of 60.2±10.5 years. AF duration was 9.4±6.0 months. Coronary artery stenosis was 85%-100%. Ambulatory electrocardiogram and echocardiography were performed to observe AF recurrence during follow-up. ResultsNone of the patients received intraoperative conversion operation under cardiopulmonary bypass, and there was no in-hospital death. Postoperatively, 81.6% (40/49)patients had conversion to sinus rhythm (SR)or junctional rhythm, 18.4% (9/49)patients remained AF, but none of the patients had second or third-degree atrioventricular block. A total of 139 distal anastomoses were performed with a mean of 2.8 distal anastomoses per patient. Length of hospital stay was 10-15 (12±3)days. SR was observed in 34 patients (69%)before discharge including 9 patients (64%)in group A and 25 patients (71%)in group B. All the patients (100%)were followed up for 5-12 months. 39 patients (80%)maintained SR over 6 months, including 10 patients (71%)in group A and 29 patients (83%)in group B. 44 patients (90%)maintained SR over 12 months, including 11 patients (79%)in group A and 33 patients (94%)in group B. There was no statistical difference in SR maintenance rate between the 2 groups (P > 0.05). ConclusionOPCAB and concomitant bipolar RFA for AF is safe, efficacious and feasible.
Abstract： Objective To analyze the influence of preoperative left atrial dimension （LAD） on the effectiveness of surgical radiofrequency ablation for the treatment of atrial fibrillation （AF） through a 5-year postoperative follow-up of AF patients after surgical radiofrequency ablation. Methods Clinical data of 433 patients with persistent or permanent AF who received bipolar radiofrequency ablation procedures during concomitant cardiac surgery in Beijing Anzhen Hospital from 2006 to 2009 were retrospectively analyzed. All the patients were divided into 4 groups according to their preoperative LAD：Group A， 75 patients with their LAD＜50 mm， including 22 males and 53 females with their average age of 56.50±10.05 years；Group B， 89 patients with their LAD ranging from 50 to 60 mm， including 32 males and 57 females with their average age of 55.63±10.28 years；Group C， 117 patients with their LAD ranging from 60 to 70 mm， including 41 males and 76 females with their average age of 55.13±10.96 years；and Group D， 152 patients with their LAD＞70 mm， including 68 males and 84 females with their average age of 53.22±11.49 years. Postoperative ECG records right after surgery， before discharge， at 6 months and 1，2，3，4 and 5 years during follow-up were collected. The relationship between preoperative LAD and postoperative sinus rhythm restoration rate was analyzed. Results There was statistical difference in sinus rhythm restoration rate right after surgery（P=0. 011）， before discharge（P=0. 002）， at 6 months（P＜ 0. 001） and 1 year （P＜0. 001）， 2 years（P＜0. 001）， 3 years（P＜0. 001）， 4 years（P＜0. 001） and 5 years（P= 0. 006） during follow-up among the 4 groups. Postoperative sinus rhythm restoration rates right at 6 months and 1，2，3， 4 and 5 years during follow-up was 90.4%， 89.9%， 90.3%， 91.3%， 89.1%， and 90.9% in Group A， 80.2%，79.0%，78.1%， 76.1%，72.5%，70.0% in Group B，74.7%，74.0%，71.2%，72.4%，70.0%， and 64.7% in Group C， and 61.8%，57.6%，56.8%，53.9%，50.7%，and 48.6% in Group D， respectively. Conclusion Patients with a larger preoperative LAD have a lower postoperative sinus rhythm restoration rate after surgical radiofrequency ablation for the treatment of AF.
The treatment of liver cancer is still a challenge in the world, and it is mainly refers to hepatocellular carcinoma (HCC). There are many factors affecting the overall survival rate of HCC; the recurrence of HCC is the main risk factor affecting the survival of patients, hence, it is urgent to explore the clinical treatment of recurrent HCC to obtain long-term survival of the patients. Up to now, surgical treatment is a radical treatment for HCC. Similarly, liver resection and liver transplantation are still the main therapy methods for recurrent HCC. In addition, radiofrequency ablation and transcatheter arterial chemoembolization and other local treatments still play an irresistible role. Therefore, emphasizing the postoperative follow-up of patients, diagnosing recurrent HCC in early stage, paying attention to the risk factors of HCC recurrence and selecting a suitable treatment plan for individuals are critical ways to prolong the survival of patients.
ObjectiveTo evaluate the efficacy and safety of cardiac surgery concomitant with bipolar radiofrequency ablation(BRFA) for the patients with heart disease and atrial fibrillation(AF). MethodsFrom April 2008 to September 2014, clinical data of 167 patients(43 males, 124 females) of organic-heart-disease patients combined with atrial fibrillation were analyzed retrospectively in our hospital. Within 167 patients, 102 patients underwent bipolar radiofrequency ablation without aortic cross-clamping were as a trial group and the other 65 patients underwent cardiac surgery and bipolar radiofrequency ablation with aortic cross-clamping were as a control group. And there were no significant difference in the age and gender between the two groups. ResultsThe time of radiofrequency ablation was 23.1±5.0 minutes in all the patients and there was no significant difference between the two groups(P=0.279). The extracorporeal circulation time was 156.6±56.4 minutes and the aortic cross-clamping time was 82.1±42.6 minutes. There was a significant difference between two groups in extracorporeal circulation time and aortic cross-clamping time. One patient underwent bipolar radiofrequency ablation with aortic cross-clamping died of severe pulmonary infection and multiple organ dysfunction syndrome(MODS) in one month after the surgery. The duration of follow-up was 1-77(35.3±3.5) months. The sinus rhyme conversion rate was estimated by electrocardiogram(ECG) in 1 month, 3 months, 6 months, 12 months, 36 months, 60 months after operation. The sinus rhyme conversion rates were 85.3%(133/156), 83.4%(126/151), 82.7%(115/139), 77.0%(94/122), 75.9%(41/54), and 72.0%(18/25). There was no significant difference during the follow-up in all of the sinus rhyme conversion rate. During the fellow-up, 2 patients died. One died after 1 month and another died after 6 months after their hospital-discharges. ConclusionThe efficacy and safety of cardiac surgery concomitant with bipolar radiofrequency ablation is satisfied. It can reduce the time of myocardial ischemia in bipolar radiofrequency ablation without aortic cross-clamping. It is beneficial to critical patients.
ObjectiveTo investigate efficacy and safety of three-step radiofrequency ablation (RFA) in treatment for giant hepatic hemangioma (GHH,diameter ≥5 cm) with symptoms. MethodsThe patients with GHH met the inclusion criteria were collected.The main steps were as follows:The first step was to destroy the main arteries of the tumor to block the blood.The second step was to withdraw the blood of the tumor to shrink the tumor.The third step was to damage the shrunk tumor by RFA. ResultsThere were 13 patients with GHH met the inclusion criteria.The median preoperative diameter was 8.0 cm.The median volume of withdrawing blood was 78 mL.The median diameter after withdrawing blood was 5.3 cm.The diameters between after and before withdrawing blood had a significant difference (P<0.01).The time for damaging tumor blood supply was (4.4±1.0) min.The median frequency of tumor RFA was 4 times.The median time of tumor RFA was 16 min.The median time of total operation was 20 min.There were 3 cases of tumor residual after RFA,10 cases were met full damage,and the damage rate was 85.9%-100% with an average of 97.0%.The hospital stay after RFA was (3.9±1.2) d.One case was remission after conservative treatment because of complication. ConclusionThe preliminary results of limited cases in this study show that three-step RFA for GHH is effective and safe,but it needs to be researched for large samples data.
ObjectiveTo explore the feasibility of radiofrequency ablation of great saphenous varicose veins in ambulatory surgery.MethodsPatients who underwent radiofrequency ablation of great saphenous varicose veins between May 2018 and June 2019 in General Hospital of Northen Theater Command were prospectively selected. According to their choices of treatment modes, patients were divided into two groups, day surgery group and routine inpatient group. The preoperative waiting time, length of hospital stay, and hospitalization expenses of the two groups were compared. The postoperative pain, tenderness, and complications were followed up on the first day (the next day after operation), the third day, and the fourteenth day after operation, and the time of return to normal life and work and patients’ satisfaction in two groups were recorded.ResultsA total of 95 patients were enrolled, including 52 in the day surgery group and 43 in the routine inpatient group. There was no significantly difference in age, gender, heart rate, mean arterial pressure, or operation time between the two groups (P>0.05). Compared with the routine inpatient group, the day surgery group had shorter preoperative waiting time, shorter length of hospital stay, and lower hospitalization expenses (P<0.05). In the day surgery group, the time of return to normal life and the time of return to work were shorter and patients’ satisfaction was significantly higher than those in the routine inpatient group (P<0.05). There was no significant difference in pain, tenderness, or paresthesia scores between the two groups after surgery according to the follow-up assessment (P>0.05); the pain, tenderness, and paresthesia scores on the first day and the third day were significantly different from those on the fourteenth day after surgery, indicating that the longer the postoperative time of the two groups, the less pain, tenderness, and paresthesia scores were.ConclusionRadiofrequency ablation of great saphenous varicose veins in ambulatory surgery has a short hospital stay, low medical cost, high patient satisfaction, and can ensure the safety of treatment at the same time, which is worthy of clinical promotion
ObjectiveTo systematically evaluate the efficacy and safety of radiofrequency ablation versus amiodarone in the treatment of atrial fibrillation, so as to provide reference for the chosen of clinical treatment options. MethodsWe searched PubMed, The Cochrane Library (Issue 10, 2014), CNKI, VIP and WanFang data from inception to October 2014 to collect randomized controlled trials (RCTs) comparing radiofrequency ablation versus amiodarone for atrial fibrillation. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then, meta-analysis was performed using RevMan 5.3 software. ResultsA total of 4 RCTs involving 511 atrial fibrillation patients were included. The results of meta-analysis showed that:compared with amiodarone, radiofrequency ablation could reduce the risk of atrial fibrillation recurrence (RR=0.35, 95%CI 0.22 to 0.55, P<0.000 01). There was no significant difference in all-cause mortality (RR=0.97, 95%CI 0.17 to 5.61, P=0.97) between both groups. The incidence of adverse events in the radiofrequency ablation group was 7.7%, and was lower than 12.7% of the amiodarone group, but there was no significant difference between the two groups. ConclusionCurrent evidence shows that, compared with amiodarona, radiofrequency ablation is related to lower recurrence rate and higher efficacy, but there is no difference in the safety between the two interventions. However, due to the limited quality and quantity of included studies, higher quality studies are needed to verify the above conclusion.