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find Author "FENG Yuan" 30 results
  • Biliary leakage after the treatment of biliary tract exploration by T tube endoscopic biliary stent: report of one case and the literature review

    ObjectiveTo investigate the clinical effect of biliary stent implantation through T-tube lumen and nasobiliary drainage through intrahepatic bile duct in the treatment of biliary leakage after biliary tract exploration.MethodsRetrospective analysis was performed on the clinical data of one case of bile leakage after common bile duct exploration admitted to the Department of Hepatobiliary Surgery of Nanchong Central Hospital in December 2016.ResultsIn this case, the biliary stent was placed in the T-tube lumen and the nasal bile duct was placed in the intrahepatic bile duct for biliary drainage. The guidewire was inserted into the hilum of liver through the tunnel in the T-tube cavity, and nasobiliary drainage was placed to the hilum of liver. In addition, a guide wire was inserted through the T-tube into the duodenum, and a 8.5F plastic stent was placed into the duodenum. One end of the stent was placed in the common bile duct, and the other end was placed in the intestinal cavity for biliary drainage. After drainage, the patient’s bile leakage stopped and the abdominal infection was controlled. Ten days after the biliary stent implantation, the patient was discharged successfully, the T-tube and nasobiliary duct were clamped 20 days after the surgery, and T-tube angiography and abdominal B-ultrasound were performed 2 months later, and it found that the scaffold of the lower common bile duct had fallen off, so removed the T-tube. The patient recovered completely after 2 years of follow-up.ConclusionThe means of T-tube tunnel biliary stent and the nasobiliary duct drainage through the intrahepatic bile duct are effective methods to treat biliary leakage, the operations are simple and easy to operate.

    Release date:2019-06-05 04:24 Export PDF Favorites Scan
  • Current state and challenges of transcatheter therapy for secondary mitral regurgitation

    Mitral valve regurgitation is one of the most common heart valve diseases, of which secondary mitral valve regurgitation (sMR) has large proportion and poor prognosis. For patients who still have symptoms after the guideline-directed management and therapy, the effects of surgery are controversial, and transcatheter therapy provides a new option. Transcatheter edge-to-edge repair has become one of the recommended therapies by the guidelines, meanwhile transcatheter mitral valve annuloplasty and transcatheter mitral valve replacement are developing. However, the etiological mechanism of sMR is complex and diverse. There is an interaction between cardiac function and structure and sMR in dynamic change. It brings challenges to the selection of indicators and evaluation timing. The complex anatomical structure also makes it more difficult to design instruments and select surgical methods. This paper reviews the challenges and progress of transcatheter therapy for sMR.

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  • Advances in transcatheter aortic valve replacement for pure aortic regurgitation

    Transcatheter aortic valve replacement (TAVR) for aortic stenosis has been confirmed to be safe and efficient, and its status has gradually increased with the continuous updating of guidelines. But for severe pure aortic valve regurgitation, it has long been considered a relative contraindication to TAVR. However, many elderly, high-risk patients with pure aortic regurgitation have also been treated with TAVR and prognosis was improved through off-label use of transcatheter heart valves due to contraindications to surgery or intolerance. But because of the complexity and challenging anatomic features, high technical requirements, limited device success rate, high rate of complications, and lack of randomized controlled studies to confirm its safety and efficacy, TAVR treatment of pure aortic regurgitation has been evolving in a debate. In recent years, with the application of new-generation valves and an increasing number of studies, some new insights have been gained regarding TAVR for severe aortic regurgitation, and this article will review the progress of research on TAVR for severe pure aortic regurgitation.

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  • Current status of transcatheter mitral valve replacement

    Mitral regurgitation is the most prevalent valvular heart disease, with a poor prognosis that brings a heavy burden to population health and socio-economics. Transcatheter repair is a relatively mature technique for mitral regurgitation, but is strict in anatomical screening and the reduction of regurgitation is limited. With the advance in techniques and technology, transcatheter replacement has become an attractive treatment modality for mitral regurgitation in succession to transcatheter repair. At present, several replacement devices have initiated clinical trials to establish feasibility. Early data has shown that transcatheter replacement for mitral regurgitation is safe and effective, which needs to be confirmed with larger population and longer follow-up. Besides, some technical challenges remain to be addressed, in order to increase accessibility of this innovative technology.

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  • Research status of percutaneous pulmonary valve treatment

    Nowadays, percutaneous pulmonary valve treatment is a hot topic in valvular heart disease, consisting of percutaneous balloon pulmonary valvuloplasty and percutaneous pulmonary valve implantation (PPVI). The percutaneous balloon pulmonary valvuloplasty is the prime intervention of pulmonary valve stenosis. The main indication of PPVI is pulmonary valve regurgitation and/or obstruction. PPVI is still the research focus, with the improvement of surgical indications and the development of surgical devices. However, compared with surgical pulmonary valve replacement, it still has limitations. This article reviews the treatment progress of percutaneous pulmonary valve treatment, especially PPVI.

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  • Effect of CPAP Treatment on Life Quality in Patients with Obstructive SleepApnea-hypopnea Syndrome Results of a Meta-analysis

    Objective To assess the effect of continuous positive airway pressure treatment (CPAP) on subjective and objective sleepiness in patients with obstructive sleep apnea-hypopnea syndrom (OSAHS). Methods We conducted a thorough literature search to identify all published randomized controlled trials of CPAP in patients with OSAHS. We use computer to search Pubmed (1990-2008.5), CNKI (1994-2008.5), google (1995-2008.5), Springer Link (1997-2008)、 and many meeting articals. We chose the literatures that divided patients randomly into two groups as CPAP group and subtheraputic CPAP or drug group. Meta-analysis were performed to access the effect and bias. Results A total of 15 trials involving 1 052 patients were included. A Meta-analysis showed that (1) The total effect was that compared with the control group, CPAP treatment group significantly depressed the degree of sleepiness in ESS [WMD= – 2.61, 95%CI (– 3.92, – 1.29)] and in MWT/ MSLT [WMD= 1.42, 95%CI (– 0.01, 2.85)]. (2) Results of subgroups on ESS were that: 1. CPAP vs CT: there was a significant effect on CPAP therapy [WMD= – 3.15, 95%CI (– 4.84, – 1.47)]. 2. CPAP vs sham CPAP: there was no significant difference between the two groups. 3. CPAP vs drugs: CPAP was more efficient than drugs. CPAP may be more efficient in improving patients’ life quality. Conclusion CPAP is a valuable treatment for OSAHS no matter in subjective or objective sleepiness .But more attention should be paid to the lone-time treatment of CPAP.

    Release date:2016-09-07 02:08 Export PDF Favorites Scan
  • Clinical Feasibility of Percutaneous Closure for Subarterial Ventricular Septal Defect Using Asymmetric Occluder Device

    目的 观察和评价采用偏心型封堵器导管介入治疗干下型室间隔缺损的近期疗效和安全性。 方法 2011年8月-12月,6例经无主动脉瓣脱垂的干下型室间隔缺损(直径≤7 mm)患者(年龄>3岁)在杂交手术室接受介入治疗。造影评估后,建立动静脉轨道,在保留导丝的情况下置入合适型号的国产偏心型室间隔缺损封堵器,并于术后定期随访复查。 结果 6例患者缺损直径4~7 mm(平均5.3 mm),其中5例成功地接受了导管介入封堵治疗,置入封堵器直径5~9 mm(平均6.4 mm)。仅1例因封堵器置入后出现主动脉瓣受压影响关闭,即改由外科微创经胸封堵成功。所有患者在随访期内,无栓塞、残余分流、瓣膜功能障碍、房室传导阻滞、死亡等并发症。 结论 无主动脉瓣脱垂的干下型室间隔缺损患者接受导管介入封堵治疗是安全、可行的,且短期随访结果良好。

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  • Bibliometric Analysis of Sleep Apnea Syndrome Based on Science Citation Index

    Objective To reveal the worldwide research status and hot topics of sleep apnea syndrome ( SAS) . Methods Articles were searched from Web of Science ( SCI) , Essential Science Indicator ( 2000 to 2010) database using sleep apnea syndrome or apnea as keywords. Retrieved documents were analyzed using the database with its own statistical functions and histcite software ( version 8.12. 16) .Results Since 1992 the international scientific papers on the SAS study showed a gradual upward trend.The United States is a world leader in this field. Recent research has focused on vascular endothelial barrier function and repair, oxidative stress, inflammation, cognitive function, special populations such as the elderlyor children patients with SAS. Conclusion Clinical researchers have paid more attention to SAS than before, but there are still many important issues unresolved.

    Release date:2016-08-30 11:56 Export PDF Favorites Scan
  • A Mental Health Survey of Medical Staffs Who Took Part in Rescue in Disaster Area after Wenchuan Earthquake

    Objective To examine the prevalence of post-traumatic stress disorder (PTSD), anxiety, and depression for medical staffs who took part in rescue in the disaster area after Wenchuan Earthquake. Methods According to purpose sampling method, from June 12th to June 18th, we investigated the medical staffs in eight areas, and the total number was 500. The eight areas included Mianzhu, Deyang, Shifang, Chengdu, Mianyang, Pengzhou, Zitong, and Anxian. The survey tools were PTSD Checklist-Civilian Version (PCL-C), Self-Rating Anxiety Scale (SAS), and Self-Rating Depression Scale (SDS). After collecting all questionnaires, we divided 500 medical staffs into 2 groups, according to the fact whether the rescue was carried out in the disaster area or not. Results A total of 500 questionnaires were given to the subjects, of which 481 effective ones were collected, and the effective rate was about 96.2%. In addition, the prevalence of PTSD for overall was 23.3%, anxiety was 21.6%, depression was 49.9%, and the anxiety plus depression was 19.54%. At the same time, we found out the averages of PCL-C (48.29±29.90 vs. 34.76±18.03), PCL-C frequency (16.27±15.14 vs. 9.99±10.25), PCL-C severity (32.03±15.26 vs. 24.85±8.60), SAS primitive (37.39±10.35 vs. 32.22±7.61), SAS standard (46.73±12.94 vs. 40.27±9.51), SDS primitive (42.00±8.32 vs. 37.99±9.63), and SDS standard (52.50±10.39 vs. 47.48±11.92) were different. The medical staffs in the disaster area were under more severe conditions, and there were significant differences between the 2 groups. The prevalence of PTSD (28.52% vs. 16.59), anxiety (28.89% vs. 12.32%), depression (58.15% vs. 39.34%), and anxiety plus depression (26.67% vs. 10.43%) between the 2 groups was significantly different, and the disaster area was under severe conditions. Additionally, the prevalences at three levels within SAS and SDS were much higher in the disaster area. There were also significant differences. Conclusion The prevalences of PTSD, SAS, and SDS within medical staffs who took part in rescue in the disaster area after Wenchuan Earthquake are higher than in the non-disaster area. Therefore, we should work out mental intervention and rehabilitation project for medical staffs, especially those who took part in rescue in the disaster area. Finally, the medical staffs’ ability to copy with stress can be improved.

    Release date:2016-09-07 02:08 Export PDF Favorites Scan
  • A Meta-analysis of percutaneous access versus surgical cutdown in transfemoral transcatheter aortic valve implantation

    ObjectiveTo systematically assess the efficacy and safety of percutaneous access and surgical cutdown in transfemoral transcatheter aortic valve implantation (TF-TAVI).MethodsWe searched databases including the Cochrane Library, PubMed, OVID, Embase, China National Knowledge Internet and Wanfang Database to collect randomized or non-randomized controlled trials comparing percutaneous access (PC group, the trial/exposure group) with surgical cutdown (SC group, the control group) in TF-TAVI between January 2002 and October 2017. The quality evaluation and data extraction were carried out by 2 reviewers independently. The Meta-analysis was performed using RevMan 5.3.5 software.ResultsA total of 11 literatures involving 4 893 aortic valve stenosis patients treated by TF-TAVI (2 877 patients in PC group and 2 016 patients in SC group) were included in this Meta-analysis. There was no significant difference between PC and SC group in terms of major vascular complications [odds ratio (OR)=0.86, 95% confidence interval (CI) (0.70, 1.06), P=0.17], minor vascular complications [OR=1.43, 95%CI (0.87, 2.37), P=0.16], major bleeding [OR=1.02, 95%CI (0.55, 1.90), P=0.94], minor bleeding [OR=0.90, 95%CI (0.51, 1.61), P=0.73] and all-cause mortality within 30 days [OR=1.03, 95%CI (0.76, 1.40), P=0.85]. As for the length of stay after TAVI, there was significant difference between the two groups [standard mean difference=–0.32, 95%CI (–0.52, –0.12), P=0.002].ConclusionPercutaneous access is as effective and safe as surgical cutdown in TF-TAVI, meanwhile leading to shorter length of stay after TAVI.

    Release date:2018-02-26 05:32 Export PDF Favorites Scan
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