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find Keyword "反流" 202 results
  • Transcatheter aortic valve replacement for pure severe native aortic valve regurgitation with high surgical risk: a case report

    Pure native aortic valve regurgitation (NAVR) is one of the common heart valve diseases, and the prognosis of symptomatic chronic NAVR is poor. Although transcatheter aortic valve replacement (TAVR) is currently an "off-label" procedure, it remains the option for patients with high risk for surgery. In this case, an 81-year-old man with multiple comorbidity and high Society of Thoracic Surgeons score, the risk for surgery is rather high. Through the preoperative evaluation by the multidisciplinary heart team, considering that the patient had calcification at the junction of annulus, as well as mild aortic stenosis, after careful consideration, 29# Venus A-Valve was chosen. After the procedure, the symptoms were obviously improved and the follow-up effect was good. Due to various causes of NAVR, great anatomical variation of annulus, little calcification of aortic valve, and lack of anchor point and other problems, the procedure to treat NAVR with TAVR is still difficult. At the same time, there are few valve systems developed for the anatomical characteristics of aortic regurgitation valve. TAVR in the treatment of patients with high risk for surgery still requires long-term practice and technical development.

    Release date:2020-05-26 02:34 Export PDF Favorites Scan
  • Treatment Progress of Chronic Postoperative Pulmonary Regurgitation after Surgical Repair of Tetralogy of Fallot

    Abstract: With the evolvement of surgical, anesthetic, perfusion, and perioperative management techniques, the mortality of routine corrective operation of tetralogy of Fallot(TOF) has been less than 2%-3%, while more and more attention has been paid to patient long-term prognosis. Chronic postoperative pulmonary regurgitation (PR) is one of the important prognostic factors which are puzzling cardiac surgeons. Subsequent right ventricle dilation, right ventricular dysfunction and fatal arrhythmias as chronic PR complications have important impact on the postoperative quality of life and long-term survival. Current treatment choice for PR includes pulmonary valve replacement(PVR), intervention, and hybrid procedures. PVR is the main surgical method for chronic PR which can significantly improve patient cardiac function and clinical symptoms,and prolong long-term survival. Intervention does not require thoracotomy once again, and can thus reduce surgical trauma and risks. Intervention is also helpful to improve right ventricular pressure conditions and PR degree. This article focuses on the pathophysiological changes of chronic PR after surgical repair of TOF, surgical indications for PVR, clinical treatment progress and early prevention of PR.

    Release date:2016-08-30 05:50 Export PDF Favorites Scan
  • Longterm Followup of Left Ventricular Function and Aortic Valve Regurgitation after Rapid Twostage Arterial Switch Operation

    Abstract: Objective To investigate the longterm complications and preventions of rapid twostage arterial switch operation through longterm follow-up. Methods We reviewed the clinical information of 21 patients of rapid twostage arterial switch operation from September 2002 to September 2007 in Shanghai Children’s Medical Center. Among them, there were 13 males and 8 females with an average age of 75 d (29-250 d) and an average weight of 5 kg (3.5-7.0 kg). The data of left ventricle training period and the data before and after the twostage arterial switch operation were analyzed, and the risk factors influencing the aortic valve regurgitation were analyzed by the logistic multivariable regression analysis. Results The late diameter of anastomosis of pulmonary and aortic artery were increased compared with those shortly after operation (0.96±0.30 cm vs. 0.81±0.28 cm, t=-1.183,P=0.262; 1.06±0.25 cm vs. 0.09±0.21 cm, t=-1.833,P=0.094), but there was no significant difference. The late velocity of blood flow across the anastomoses was not accelerated, which indicated no obstruction. The late heart function was better than that shortly after operation, while there was no significant difference between left ventricular ejection fraction(LVEF) during these two periods (62.88%±7.28% vs. 67.92%±7.83%,t=1.362,P=0.202). The late left ventricular end diastolic dimension(LVDd) was significantly different from that shortly after operation (2.16±0.30 cm vs.2.92±0.60 cm,t=-5.281,P=0.003). Compared with earlier period after operation, the thickness of left ventricular posterior wall thickness(LVPWT)was also increased (0.39±0.12 cm vs. 0.36±0.10 cm,t=0.700,P=0.500), but there was no significant difference. The postoperative aortic valve regurgitation was worsened in 4 patients (30.77%, 4/13), not changed in 7 patients and alleviated in 2 patients compared with that before operation. There was no severe regurgitations during the followup. The logistic regression analysis showed that the small preoperative diameter ratio of aortic valve to pulmonary valve and long follow-up time were two risk factors for the [CM(159mm]aggravation of aortic regurgitation. Conclusion There is a relatively high aortic regurgitation rate after rapid two stage arterial switch operation, but there is no later death or reoperation and the survival conditions are satisfactory. All patients must be followed up periodically to check the anastomosis of pulmonary and aortic arteries and the aortic valve.

    Release date:2016-08-30 06:03 Export PDF Favorites Scan
  • Surgical treatment for hypertrophic obstructive cardiomyopathy with moderate-to-severe mitral regurgitation through right mini-thoracotomy

    ObjectiveTo explore the effect and safety of surgical treatment for hypertrophic obstructive cardiomyopathy (HOCM) with mitral regurgitation (MR) through right mini-thoracotomy.MethodsFrom January 2008 to June 2018, 54 patients with HOCM and moderate-to-severe MR underwent modified Morrow procedure and edge-to-edge mitral valvuloplasty through right mini-thoracotomy, including 31 males and 23 females, with an average age of 47.1±12.6 years. All patients had systolic anterior motion (SAM) phenomenon. Preoperative left ventricular outflow tract pressure gradient (LVOTPG) was 93.6±32.8 mm Hg, interventricular septum thickness (IVST) was 24.8±2.8 mm.ResultsSurgeries in all patients were completed successfully. No early death or interventricular septal perforation occurred. One (1.9%) patient received permanent pacemaker implantation due to the complete atrial-ventricular block. At discharge, postoperative LVOTPG (18.1±6.2 mm Hg) and IVST (14.5±2.1 mm) were significantly decreased compared with the preoperative values (P<0.05). No MR or SAM was observed in all patients. The follow-up time was 6-132 months, and during this period, no death, MR or SAM occurred. The average LVOTPG was 19.4±5.7 mm Hg, and the average IVST was 14.2±1.5 mm.ConclusionMorrow procedure and edge-to-edge mitral valvuloplasty through right mini-thoracotomy is a safe and effective method for treatment of HOCM with moderate-to-severe MR.

    Release date:2020-07-30 02:16 Export PDF Favorites Scan
  • 食管胃黏膜延长分层吻合的实验研究

    目的 探讨食管胃吻合抗胃食管反流、预防吻合口瘘及狭窄的术式. 方法 选杂种犬58条,随机分为实验组和对照组.实验组:31条犬,自贲门横断,食管黏膜延长1.5~2 cm;切除部分胃小弯,剥除大弯侧保留部分浆肌层,成形为宽3~3.5 cm、长4~5 cm黏膜管,行食管胃黏膜、肌层分层吻合.对照组:27条犬,用"深套叠"术式.于术后3~180天检测对比分析. 结果 两组突入胃内结构长度、肌层吻合口直径差别无显著性意义(Pgt;0.05),黏膜游离缘直径差别有显著性意义(P<0.01);实验组能耐受较高胃内压,胃与食管压力差两组差别有显著性意义(P<0.01);突向胃腔内结构厚度两组相差1倍以上;实验组成形黏膜血供良好,吻合口愈合及缝线脱落早于对照组. 结论 适当剥除肌层不引起黏膜缺血坏死; 成形黏膜瓣薄软, 具有良好的抗反流效果; 黏膜层密缝对合严密、愈合快, 能有效预防吻合口瘘的发生,不同平面吻合狭窄发生率低.

    Release date:2016-08-30 06:32 Export PDF Favorites Scan
  • Cough due to gastroesophageal reflux

    胃食管反流(GER)是指胃酸和其他胃内容物反流进入食管,正常人存在一定程度的反流,称为生理性反流。GER 可以引起临床症状,甚至组织病理学的改变。当出现胃烧灼、反酸、胸骨后疼痛等临床症状和(或)组织病理学的改变时,也被称为胃食管反流病(GERD)。以慢性咳嗽为主要临床表现的GERD称为胃食管反流性咳嗽(GERC)。2006年蒙特利尔会议提出了反流性咳嗽综合征的定义 。GERC 是慢性咳嗽的常见原因,发生率为5%~41% ,存在一定的地区差异。欧美报道极为常见,而日本极为少见,国内 GERC占慢性咳嗽病因的12%。

    Release date:2016-09-14 11:57 Export PDF Favorites Scan
  • Hydrotalcite in the treatment of reflux esophagitis: a meta-analysis

    ObjectivesTo systematically review the efficacy and safety of hydrotalcite in the treatment of reflux esophagitis (RE).MethodsCBM, CNKI, WanFang Data, VIP, PubMed, EMbase, The Cochrane Library, Web of Science and Scopus databases were searched online to collect randomized clinical trials (RCTs) of hydrotalcite or hydrotalcite plus PPI versus PPI alone in the treatment of RE from inception to June 30th, 2017. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Meta-analysis was performed by RevMan 5.3 software.ResultsA total of 15 RCTs involving 1 655 patients were included. The results of meta-analysis showed that: after 4-8 weeks of treatment, there was no significant difference between hydrotalcite vs. PPI regarding RE healing rates (RR=0.87, 95%CI 0.76 to 1.00, P=0.05). However, there were significant increases in RE healing rate (RR=1.22, 95%CI 1.14 to 1.31, P<0.001) and symptom relief rate (RR=1.36, 95%CI 1.12 to 1.66,P<0.01) between hydrotalcite plus PPIvs. PPI alone. Similar increases of RE healing rate (RR=1.16, 95%CI 1.08 to 1.25, P<0.001) and symptom relief rate (RR=1.12, 95%CI 1.04 to 1.20,P<0.01) were seen in patients with refractory RE. No increase of adverse effect rate was shown with hydrotalcite or hydrotalcite plus PPI compared to PPI alone.ConclusionsCompared with PPI alone, hydrotalcite plus PPI confers a statistically significant improvement of healing rate and symptom relief rate, while it does not increase adverse effect rate. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.

    Release date:2018-09-12 03:22 Export PDF Favorites Scan
  • MitraClip device for patients with severe mitral valve regurgitation: a rapid health technology assessment

    ObjectiveTo utilize a rapid health technology assessment to evaluate the efficacy, safety and cost-effectiveness of the MitraClip device for patients with severe mitral regurgitation (MR). MethodsPubMed, EMbase, The Cochrane Library, CNKI, WanFang Data, CBM and the CRD databases were electronically searched to collect clinical evidence and economic evaluations on the efficacy, safety and cost-effectiveness of the MitraClip device for patients with severe MR from inception to May 2022. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies; then, descriptive analyses and data summaries were performed. ResultsA total of 33 studies, involving 4 HTA reports, 3 RCTs, 16 systematic reviews or meta-analyses, and 10 economic evaluations were included. In the evidence comparing MitraClip and surgery, most of the literature showed that the MitraClip group had higher postoperative residual MR, fewer blood transfusion events, and fewer hospital days. We found no significant treatment effects on 30-day adverse events and mortality, and the 1-year and above survival rate. In the evidence of MitraClip versus medical therapy alone, all included studies showed that MitraClip benefited mid-term and long-term survival and reduced the incidence of subsequent cardiac hospitalizations. Economic evaluations showed that the clinical benefits were cost-effective in the setting of their health service systems. ConclusionThe available high-grade clinical evidence shows that MitraClip is effective and safe to some extent, and has cost-effectiveness compared with traditional treatment in other countries. However, the real-world effectiveness and cost-effectiveness of the MitraClip need to be tested in the Chinese population and health-care setting.

    Release date:2023-02-16 04:29 Export PDF Favorites Scan
  • Mid-term outcomes of tricuspid valve detachment versus non-detachment for ventricular septal defect closure

    ObjectiveTo evaluate the mid-term outcomes between tricuspid valve detachment (TVD) and non-detachment (NTVD) for ventricular septal defect (VSD).Methods The patients who underwent perimembranous VSD repair in the Department of Cardiovascular Surgery, West China Hospital from 2015 to 2020 were included. According to the surgical method, the patients were divided into a TVD group and a NTVD group. The clinical data of the two groups were compared.Results Totally 538 patients were included in the study. There were 240 patients in the TVD group, including 121 males and 119 females, with an average age of 3.85±8.42 years and an average weight of 14.12±12.97 kg. There were 298 patients in the NTVD group, including 149 males and 149 females, with an average age of 4.42±9.36 years and an average weight of 14.87±12.51 kg. There was no statistical difference in the age, weight, sex, preoperative New York Heart Association (NYHA) classification or tricuspid regurgitation (TR) degree between the two groups (P>0.05). Median follow-up was 30 (23, 40) months in the TVD group, and 29 (23, 41) months in the NTVD group (P=0.600). After operation, one patient in each group developed third-degree atrioventricular block and recovered to sinus rhythm before discharge (P=0.848). No pacemaker was needed. There was no statistical difference in the length of stay (P=0.054), mortality (P=1.000), in-hospital reoperation (P=0.199), or follow-up reoperation (P=0.505). More than 98% of patients in both groups had postoperative TR less than moderate (P=0.926). At the last follow-up, only 7 (2.9%) patients in the TVD group were detected trivial residual shunting, and 14 (4.7%) in the NTVD group (P=0.289). No one needed to have reoperation because of residual VSD. The TVD group showed less TR during the follow-up (P=0.019).Conclusion TVD is an alternative technique which can be safely used in the closure of VSD, especially in technologically mature medical center. Appropriate tricuspid valve detachment for those hard-to-expose VSDs does not result in poorer tricuspid valve function or higher risk of atrioventricular block, and might reduce the incidence of residual shunting.

    Release date:2023-07-25 03:57 Export PDF Favorites Scan
  • 小儿胃食管反流的诊断与治疗

    小儿胃食管反流(GER)是由于小儿食管下端功能障碍引起的胃内容物及十二指肠内容物反流入食管.其常见并发症有反流性食管炎、食管狭窄和上消化道出血等,临床特征为顽固性呕吐或反胃;胸骨后烧灼感或疼痛、吞咽困难和呕血;反复发作的肺炎、支气管炎、哮喘和窒息等.检查方法可采用胃食管X线钡餐造影,24小时食管pH监测,放射性核素食管显像,食管内窥镜及组织活检,食管下端压力测定等.后4项指标不仅用于诊断胃食管反流,还可判断治疗是否有效.应用抗酸剂、胃粘膜保护剂和H2受体拮抗剂等治疗6~12周无效时,则应用手术治疗.随着微创手术引入小儿外科,小儿腹腔镜胃底部分折叠术(180°)及腹腔镜幽门成形术由于手术效果好、创伤小、恢复快、术后并发症少等优点,而逐渐替代原传统经腹Nissen胃底折叠术(360°),其远期疗效有待观察.但它为小儿胃食管反流的治疗开辟了一条新的途径.

    Release date:2016-08-30 06:35 Export PDF Favorites Scan
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