Safety of an improved patent ductus arteriosus occluder for transcatheter closure of perimembranous ventricular septal defects with abnormally attached tricuspid chordae tendineae

BACKGROUND The off-label use of various devices has been reported for the transcatheter closure of perimembranous ventricular septal defects(PmVSD) because of serious complications, such as heart block and tricuspid regurgitation(TR),associated with conventional ventricular septal defect devices. However, whether certain defects such as PmVSD with abnormally attached tricuspid are fit for interventional treatment is still disputable.AIM To explore the feasibility and safety of transcatheter closure of PmVSD with abnormally attached tricuspid chordae tendineae using an improved patent ductus arteriosus(PDA) occluder.METHODS We retrospectively analyzed 20 patients diagnosed with PmVSD with abnormally attached tricuspid chordae tendineae who underwent interventional treatment using an improved PDA occluder at our center from January 2012 to January 2016. Baseline characteristics and procedural and follow-up data were analyzed.RESULTS All 20 patients achieved procedure success. No heart block occurred during the operation. One patient had a transient complete right bundle branch block within48 h post-procedure and reverted to normal rhythm after intravenous injections of dexamethasone for 3 d. For all 20 patients, no residual shunt was observed by transthoracic echocardiography post-procedure. During the average follow-up period of 2.4 years, no severe TR was observed.CONCLUSION Using of the improved PDA occluder for the transcatheter closure of PmVSD with abnormally attached tricuspid chordae tendineae is a safe and promising treatment option. However, long-term follow-up in a large group of patients is still warranted.

Modified method for transcatheter closure of patent ductus arteriosus with amplatzer duct ocduders:feasibility, safety and clinical experience

Objectives To evaluate feasibility, safety and clinical significance of the modified method for trans-catheter closure of patent ductus arteriosus (PDA) with Amplatzer duct occluders. Methods Sixty children with PDA were divided into 2 groups. Group A consisted of 27 children (12 males, 15 females, aged at 4.6±2.9 years), and group B 33 children (13 males, 20 females, aged at 4.9±3.3 years). The duct closure was completed with the modified method during initial phase in group A and after well-experienced phase in group B. All the technical procedures during PDA occluding including measurement

Successful Transcatheter Closure of Patent Ductus Arteriosus in Isolated Levocardia with Situs Inversus

Isolated levocardia with situs inversus is an extremely rare type of situs anomaly with an estimated incidence of 1 per 22,000 in the general population. This autosomal recessive situs anomaly has been described as normal levo position of the heart with dextro position of the abdominal viscera. In this case report, we describe accidental diagnosis of isolated levocardia with situs inversus in pediatric patient while evaluating for heart murmur. Systematic examination of the patient identified the presence of patent ductus arteriosus, anomalous course of inferior vena cava and bovine aortic arch. We shared our experience of successful transcatheter closure of patent ductus arteriosus. This case report is worth reporting both, for demonstrating the possibility of the percutaneous device closure of the patent ductus arteriosus in patient with this unusual situs anomaly to interventional cardiologists and because of scanty of literature.

Transcatheter Closure vs.Surgical Ligation in Preterm Infants with Patent Ductus Arteriosus:A Systematic Review and Meta-Analysis

Background:Persistent patent ductus arteriosus(pPDA)is a common condition in preterm infants.This metaanalysis aimed to assess the safety and efficacy of transcatheter closure(TC)when compared to surgical ligation(SL)in preterm infants with pPDA.Methods:A literature search of Ovid Cochrane Library,Medline,Embase,Epub,Scopus,PMC Preprints,and ClinicalTrials.Gov was conducted from inception to May 06,2022.Eligible studies reported infants diagnosed with pPDA born at≤2000 g birth weight or at≤37 weeks’who underwent TC or SL as treatment.This review was registered in PROSPERO(CRD42022325944).Results:From 97 studies screened,8 studies met the eligibility criteria,with a total of 756 preterm infants undergoing either TC(n=366)or SL(n=390).Compared to TC,SL had higher mortality rates(OR=0.32,95%CI:0.16,0.66,I^(2)=0%).No difference was seen in post-procedural complication rate(OR=0.90,95%CI:0.18,4.44,I^(2)=79%),mean duration of post-procedural mechanical ventilation(MD=−2.21 days,95%CI:−4.88,0.47,I^(2)=60%),hospital stay length(MD=−8.30 days,95%CI:−17.03,0.44,I^(2)=0%)or neonatal intensive care unit stay length(MD=−3.50 days,95%CI:−10.27,3.27,I^(2)=0%).Conclusion:Our meta-analysis demonstrated TC as a viable alternative option in managing preterm infants with pPDA in the context of SL.Despite the promising trends demonstrated in this meta-analysis,further studies with larger sample size and controlled baseline characteristics are needed to evaluate the safety and efficacy of TC and SL for preterm infants with pPDA.

Perpulmonary Device Closure of Patent Ductus Arteriosus with Minimum Diameter More Than 4 mm in Infants

Background:Closure of large patent ductus arteriosus(PDA)in older children has been accomplished using surgical and percutaneous techniques with remarkable outcomes.However,outcomes amongst infants have been variable with several drawbacks.Here we describe a novel minimally invasive technique,a product of mini-thoracotomy and traditional percutaneous technique skills,accomplished exclusively under echocardiography guidance.Methods:Symptomatic infants with a significant left-to-right shunt from PDA measuring more than 4 mm were selected.The symptoms were varying degrees of tachypnea,tachycardia,heart failure,failure to thrive,recurrent respiratory tract infections,or intensive care unit treatment for a longer duration.Through a left parasternal mini-thoracotomy,two parallel purse-string sutures were placed on the pulmonary trunk.After purse-string circle puncture,under exclusively transesophageal echocardiography guidance,a device secured to the safety-suture was implanted on the ascending aorta via pulmonary trunk using a specially designed set.The safety-suture prevented device migration in case of dislocation.The basic demographics,PDA size,device size and type,intrapulmonary manipulation time,operation time,PDA parameters(length,diameter,type of duct),redeployment of the device,residual shunt,and retention of safety-suture were all recorded and analyzed.The follow-up was done with transthoracic echocardiography on the 2^(nd)postoperative day,1,3,6,and 12 months,and yearly thereafter.Results:Fifty-two infants with a mean age of 8 months±2.8 months(Interquartile range=0)underwent Perpulmonary device closure of PDA.Successful PDA occlusion was accomplished event-free in all subjects.The mean PDA,mean device,and mean operation time were 5.6 mm±1.4 mm,7.9 mm±1.7 mm,and 61.2 min±12.9 min,respectively.The immediate acceptable residual shunt was noted among 3 subjects and disappeared at a 1-month follow-up.Eighteen infants had retained safety-suture for added safety.There were no reports of the device or procedure-related complications.Conclusion:Perpulmonary device closure is an effective and safe approach to PDA with a diameter measuring>4 mm among infants.The safety-suture,in case of dislocation,prevents migration and associated complications.

Simultaneous transcatheter intervention for atrial septal defect complicated with patent ductus arteriosus: A 13-year single institutional retrospective study

Purpose: The feasibility and validity of simultaneous transcatheter interventions for patients with atrial septal defect(ASD) complicated with patent ductus arteriosus(PDA) has not been systematically evaluated. Materials and Methods: A retrospective analysis was conducted in patients who received transcatheter procedures for ASD complicated with PDA concurrently. The indications and treatment protocols were in accordance with the current guidelines. The sequence of therapy for ASD complicated with PDA was determined by clinical experience. Patients were followed up for at least 6 months after therapy Results: Overall, 22 patients received simultaneous transcatheter interventional therapy, and the success rate was a 100%. No severe complications transpired during the procedure or follow-up stage. Conclusion: Simultaneous transcatheter intervention is feasible and effective for patients who have concurrent complications for both ASD and PDA.

The Improvement of Coil Closure Patent Ductus Arteriosus

Purpose To improve the method of PDA closuremanipulation for occluding larger PDAs with the diameter】5mm Method:For 3 patients after perforating the femoral artery,a guiding wire wasintroduced into the aortic atery and past through the PDA.Along the wirea balloon catheter was adopted to explore the real internal eiameter and thedistensibility of the PDA.Using a multi-usable catheter which remade fromthe coronary angiographic catheter and had a relative larger cavity was easyto push the coil.Result:The diameters of 3 patients were 6.0,6.3 and40 minutes.A small shunt existed in only one case and disappeared onemonth late.Conclusion:The improved method is safe and valuable forclmical application.

A Retrospective Study of 1526 Cases of Transcatheter Occlusion of Patent Ductus Arteriosus

Background： Patent ductus arteriosus （PDA） is one of the most common congenital heart diseases and began to get treated by transcatheter occlusion since 1997 in China. Since then, several devices have been invented for occluding PDA. This study aimed to evaluate the technical feasibility, safety, and efficacy of transcatheter occlusion of PDA with different devices. Methods： One thousand five hundred and twenty-six patients （537 boys, 989 girls） with PDA from January 1997 to September 2014 underwent descending aortogram and transcatheter occlusion procedure. We retrospectively analyzed data of these patients, including gender, age, weight, size and morphology of PDA, and devices used in transcatheter occlusion, outcomes, and postoperational complications. Results： Median age and median weight were 4.0 years （range： 0.3 5-2.0 years old） and 15.3 kg （range： 4.5-91.0 kg）, respectively. Mean ductal diameter, aortic ductal diameter, ductal length, and pulmonary artery pressure were 3.50 ± 2.15 mm, 10.08 ± 2.46 ram, 7.49 ± 3.02 mm, and 30.21 ± 17.28 mmHg, respectively. Morphology of PDA assessed by descending aortogram was of type A in 1428 patients, type B in 6 patients, type C in 79 patients, type D in 4 patients, and type E in 9 patients according to the classification of Krichenko. Of all the 1526 patients, 1497 patients underwent transcatheter PDA closure, among which 1492 were successful. Devices used were Amplatzer duct occluder I （ADO I, 1280, 85.8%）, Cook detachable coils （116, 7.8%）, ADO II （ADO II, 68, 4.6%）, muscular VSD occluder （12, 0.8%）, and Amplatzer vascular plug （16, 1.0%）. Conclusions： Excellent occlusion rates with low complication rates were achieved with all devices regardless of PDA types. With transcatheter occlusion technique and devices developing, more patients with PDA can be treated with transcatheter closure both safely and efficiently.

动脉导管未闭患儿手术前后血清脑利钠肽、肿瘤坏死因子-α和白细胞介素-10水平变化及临床检测价值研究

目的:探讨动脉导管未闭(PDA)患儿手术前后血清脑利钠肽(BNP)、肿瘤坏死因子-α(TNF-α)和白细胞介素-10(IL-10)水平变化及临床检测价值。方法:选取PDA患儿124例为观察组,选取年龄相当的体检健康者124名为观察组。比较两组及观察组患儿手术前后心脏结构指标[左心房内径(LAD)、左心室舒张末期内径(LVEDD)、左心室收缩末期内径(LVESD)及右心室舒张末期内径(RVEDD)]、Tei指数及血清BNP、TNF-α和IL-10水平。分析PDA患儿心脏结构指标、Tei指数与血清BNP、TNF-α和IL-10水平的相关性。分析血清BNP、TNF-α和IL-10对PDA的诊断价值。结果:观察组LAD、LVEDD、LVESD、RVEDD、Tei指数及血清BNP、TNF-α和IL-10水平高于对照组(均P<0.05)。术后3 d和术后3个月PDA患儿LAD、LVEDD、LVESD、RVEDD、Tei指数及血清BNP、TNF-α和IL-10水平低于术前,且术后3个月低于术后3 d(均P<0.05)。PDA患儿LAD、LVEDD、LVESD、RVEDD及Tei指数与血清BNP、TNF-α和IL-10水平呈正相关(均P<0.05)。血清BNP、TNF-α和IL-10对PDA均有一定诊断价值,三者联合的诊断价值更高(均P<0.05)。结论:PDA患儿心脏结构指标、Tei指数与血清BNP、TNF-α、IL-10水平均升高,术后以上指标得到一定改善,且血清BNP、TNF-α和IL-10三者联合检测对PDA的诊断价值较高。

早产儿动脉导管未闭早期自发闭合影响因素的研究进展

胎儿时期,动脉导管开放是维持胎儿循环的关键,足月儿出生后动脉导管会自发闭合。早产儿出生后动脉导管未能自发关闭,会引起体循环缺血和肺循环淤血而产生相关并发症。目前,早产儿动脉导管未闭的治疗仍存在争议,早期使用药物及手术关闭早产儿动脉导管并未改善支气管肺发育不良等结局,且会增加不良反应,此外,早产儿的动脉导管有自发关闭的可能。本文对早产儿动脉导管未闭早期自发闭合的影响因素进行综述,旨在为早产儿动脉导管未闭的早期干预提供依据。

经食道超声引导下左腋下动脉导管未闭封堵术中超声应用价值分析

目的分析经食道超声引导下左腋下动脉导管未闭(PDA)封堵术中超声应用价值。方法本文为回顾性分析。选取2020年1月至2022年1月郑州大学附属儿童医院PDA患儿42例,男19例,女23例,年龄(2.62±0.58)岁。均采用经食道超声检查,明确是否能进行左腋下PDA封堵术,统计手术情况、超声引导情况、结果及超声随访。结果42例患儿均未使用X线,完全在经食道超声心动图下完成经左腋下PDA封堵术;封堵器均塑形良好;患儿均无心血管穿孔等并发症;42例患儿均成功在超声心动图下完成PDA封堵术,封堵器型号XJFD0406-XJFD1618;23例术中释放封堵伞之后,术中经食道超声即刻监测到不同程度的渗漏,最宽1例肺动脉内根部束宽1.9 mm,渗漏流速最快1例流速2.4 m/s;左肺动脉血流未见增快;部分降主动脉流速稍增快,在随访过程中,降主动脉流速均降至正常;术中23例渗漏患儿,在术后第1天经胸超声复查,仍有9例渗漏;本组42例患儿中,4例出现少量心包积液;在术后3个月随访中,8例患儿渗漏先后消失,仍有1例残余渗漏;术后6个月随访时,所有患儿均无残余渗漏或残余分流。结论在单纯经食道超声引导下左腋下小切口PDA封堵术中,经食道超声能对手术情况、超声引导情况进行准确评估,且该手术切口小、疗效好、恢复快,目前已经成为治疗PDA的首选方案。

成角动脉导管未闭封堵器的临床应用

目的 评价应用成角动脉导管未闭 (PDA)封堵器经导管闭合PDA的疗效。方法 9例PDA患者 ,未闭导管最小直径 3～ 10mm ,平均 (5 .8± 1.9)mm。应用 6～ 9F长鞘管输送封堵器封堵PDA。结果 9例患者均获成功。植入封堵器腰部直径 5～ 14mm ,平均 (9.7± 2 .9)mm。 9例术后即刻主动脉造影显示无分流。全部病例术后 1周心脏多普勒超声显示PDA完全堵塞。无并发症。结论 成角PDA封堵器治疗PDA使用安全 ,疗效可靠 。

动脉导管未闭封堵的临床研究

目的总结经导管介入封堵治疗动脉导管未闭(PDA)的临床经验,以探讨其指征、方法学及并发症。方法统计10所医院共3215例患儿,其中男1331例,女1884例;≤2岁734例,>2岁2481例。采用的介入治疗方法有6种,包括Porstmann法、Rashkind法、Sideris法、Cook弹簧栓法、Pfm弹簧栓法及Amplatzer法,其中Am鄄platzer法及弹簧栓法分别占总例数的73%及14%。结果总技术成功率98%,其中弹簧栓法、Amplatzer法分别达到99.1%与99.7%,Porstmann法成功率最低,约92%。用弹簧栓法及Amplatzer法治疗的所有病例中有12例未成功,失败原因:并发艾氏综合征5例,大型窗形或短管形PDA3例,常规造影PDA显示不清1例,大型PDA合并重症肺炎、心衰1例,伴重度肺高压装置放置后血压下降1例,术中封堵器脱落、转外科手术1例。并发症:残余分流103例,股动脉血栓形成29例,术后溶血8例,封堵器脱落2例,并发主动脉缩窄2例,左肺动脉狭窄1例。结论PDA经导管介入封堵治疗PDA创伤小、操作简便、安全、并发症低,与外科手术疗效相仿,在其适应证范围内可作为外科的替代疗法。弹簧栓封堵器适用于中小型PDA,而Amplatzer蘑菇伞状PDA封堵器则适用于中大型PDA。

应用Amplatzer封堵器治疗动脉导管未闭及其疗效评价

目的：评价Ａｍｐｌａｔｚｅｒ 封堵器治疗动脉导管未闭（ＰＤＡ） 的初步疗效。方法：自１９９８ 年５ 月～１９９９ 年６ 月，采用美国ＡＧＡ 公司生产的Ａｍｐｌａｔｚｅｒ 封堵器共施行４７ 例（ 女３７ 例，男１０ 例）ＰＤＡ 封堵术。平均年龄１５－８ ±１３－４ 岁（０－９ ～４８ 岁） ，平均体重３７－３ ±２１－２ ｋｇ（６－５ ～８２－０ ｋｇ） 。３ 例为ＰＤＡ 结扎术后再通。全部病例均经临床、心电图、Ｘ 线胸片及超声心动图检查证实为ＰＤＡ。局麻或全麻下穿刺右股静、动脉，先行右心导管检查及主动脉弓降部造影，以确定ＰＤＡ的位置、形状及直径。选择大于所测ＰＤＡ 最窄直径２ ～４ ｍ ｍ 的Ａｍｐｌａｔｚｅｒ 封堵器，于透视下经６ Ｆ 输送鞘管将其封堵于ＰＤＡ 处。１０分钟后重复主动脉造影，若封堵器形状、位置满意，无或仅有微～少量残余分流时，可释放封堵器。重复右心导管检查后撤出导管，压迫止血。术后２４ ～４８ 小时，１ ～１３ 个月行超声心动图、Ｘ 线胸片检查，观察残余分流情况、有无再通及封堵器位置等。结果：主动脉弓降部造影显示ＰＤＡ 属Ｋｒｉｃｈｅｎｋｏ Ａ 型４５ 例，Ｂ 型及Ｅ 型各１ 例。ＰＤＡ 最窄处直径平均为４－６ ±１－７ ｍ ｍ （２

经导管Amplatzer堵塞器治疗动脉导管未闭的评价

为研究评价新的自膨性Amplatzer堵塞器关闭动脉导管未闭(PDA)的疗效,于1998年8月至1999年2月应用Amplatzer堵塞器关闭PDA32例,年龄0.8～11岁(平均3.9岁),体重7～39kg(平均15.8kg),PDA最狭处直径2.3～6.43mm(平均3.5mm)。应用6F长鞘经股静脉插至降主动脉递送堵塞器,术后10～15分钟作主动脉造影评价即刻疗效。关闭术后24小时、1月、3月、6月行彩色多普勒随访。结果:32例全部成功,术后无分流30例;少量分流2例,其中1例24小时彩色多普勒随访分流消失,另1例术后1月分流消失。平均手术时间42.5分钟,平均透视时间6.1分。无任何并发症。本文结果表明,应用Amplatzer堵塞器可成功关闭中大型PDA,该法简单、安全、有效、并发症少,有关方法学尚需更多病例总结及远期随访。

小儿动脉导管未闭介入封堵术后严重血小板减少临床分析

目的探讨动脉导管未闭(patent ductus arteriosus,PDA)介入封堵术后严重血小板减少的原因。方法收集重庆医科大学附属儿童医院2006年1月至2016年11月PDA介入封堵术后发生严重血小板减少的病例,分析严重血小板减少发生的高危因素、诊治措施及预后。结果共收集介入封堵PDA患儿848例,其中发生严重血小板减少11例,发生率为1.29%。11例患儿年龄(1.4±0.5)岁,包括男性3例,女性8例。降主动脉造影测PDA直径为(7.9±3.0)mm,选择封堵器前伞直径8~18(11.6±2.5)mm,术后1 d复查心脏超声发现7例患儿有不同程度残余分流。患儿术前血小板为(261.0±74.9)×10~9/L,术后血小板最低下降至(23.4±9.3)×10~9/L。8例发生于术后第1~3天,2例发生于术后第4天,1例发生于术后第6天;8例出现皮肤出血点,3例合并鼻衄,1例合并溶血,6例合并中度贫血(Hb:71~86 g/L),所有病例无重要脏器出血。8例术后1~3 d出现发热,1例合并穿刺处巨大血肿。除1例21-三体综合征患儿合并室间隔缺损封堵术后出现顽固性血小板减少和溶血,内科治疗3周无效转外科手术后血小板恢复外,其余经止血、输注血小板、激素、丙种球蛋白等内科治疗后,9例于术后2周内血小板恢复正常,1例于术后第8周恢复正常。结论 PDA介入封堵术后严重血小板减少的发生可能与PDA直径较大、封堵器直径较大、残余分流、术后感染、穿刺处血肿有关,经正规内科保守治疗,预后良好。

Rashkind双面伞治疗动脉导管未闭的远期疗效评价

目的 评价Rashkind双面伞治疗动脉导管未闭(PDA)的远期疗效。方法 1994年7月至1998年12月,对49例PDA患者施行了Rashkind双面伞封堵术。经股静脉途径置入Rashkind双面伞,封堵后10～30min行主动脉造影。术后24h、1、3、6、12个月及以后每隔6个月行超声心动图和X线胸片检查。结果 47例患者治疗成功,2例进行了外科手术。封堵后10～30min,微量、少量、中量、大量残余分流率分别为12.8％(6/47)、27.7％(13/47)、25.5％(12/47)和14.8％(7/47),完全封堵率19.2％(9/47)。近期(≤3个月)随访36例患者,3个月残余分流率为44.4％(16/36)。中期(3～36个月)随访30例患者,36个月残余分流率为13.3％(4/30)。远期(>36个月)随访25例患者,平均随访时间60±12个月(38～96个月),4例患者仍存在残余分流,其中术后46、48个月有残余分流的2例患者经置入Amplatzer封堵器后达到完全封堵。结论 Rashkind双面伞治疗PDA远期残余分流不能自然消失,需行2次封堵术。

动脉导管未闭合并重度肺动脉高压Amplatzer法封堵治疗的临床应用──12例初步报告

目的：评价Ａｍｐｌａｔｚｅｒ封堵器治疗动脉导管未闭（ＰＤＡ）合并重度肺动脉高压（ＳＰＨ）的初步疗效。方法：对 １２例（女 ９例，男 ３例）ＰＤＡ合并 ＳＰＨ患者实施封堵治疗。其中１０例采用 Ａｍｐｌａｔｚｅｒ动脉导管未闭封堵器， ２例采用 Ａｍｐｌａｔｚｅｒ房间隔缺损封堵器。结果：全组１２例ＰＤＡ封堵器均放置成功。１１例ＰＤＡ封堵后３０分至１小时肺动脉收缩压、肺动脉平均压均明显降低。１例封堵术后即刻肺动脉压无变化。术后３６小时彩色多普勒估测肺动脉压明显下降，封堵术后３０分降主动脉造影，无残余分流９例，微量残余分流２例，少量残余分流１例。全组术后２４～４８小时彩色多普勒检查，动脉水平左向右分流均完全消失。无重要并发症发生。随访１～２４个月（平均８个月），患者症状改善，１１例心脏缩小，无１例发生再通。 结论：采用 Ａｍｐｌａｔｚｅｒ法封堵治疗 ＰＤＡ合并 ＳＰＨ，近期疗效满意。

Amplatzer封堵器试验性关闭动脉导管未闭合并重度肺动脉高压的临床意义

目的 Amplatzer封堵器试验性关闭动脉导管未闭(PDA) ,评价其在 PDA合并重度肺动脉高压 (SPH)患者封堵治疗中的临床价值 .方法 对 7(男 4,女 3)例 PDA合并 SPH患者实施 PDA封堵器堵塞 PDA试验 ,观察肺动脉收缩压、肺动脉平均压有无降低及血氧饱和度变化 ,以此分析肺血管病变是否可逆 .结果 7例重度肺动脉高压者 ,肺动脉收缩压11.3～ 18.7(12 .8± 4.9) k Pa,平均压为 6 .9～ 12 .3(9.1±2 .5 ) k Pa,其中 2例血氧饱和度小于 90 % ,6例试封堵术后30 min～ 1h肺动脉收缩压降至 6 .0～ 13.1(7.6± 3.1) k Pa,肺动脉平均压降至 2 .7～ 8.3(4 .4± 2 .8) k Pa,行永久性封堵治疗 . 1例肺动脉压和动脉血氧饱和度无明显变化 ,为阻力性肺动脉高压 ,不宜进行封堵治疗 .结论 对于 PDA伴严重肺动脉高压者 ,Amplatzer封堵器关闭 PDA试验是鉴别肺动脉高压是否为阻力性肺动脉高压的安全有效的方法 ,在 Am -platzer法封堵器治疗 PDA合并重度肺动脉高压 (SPH)的病例选择中有重要的临床价值 .

小儿先天性左向右分流型心脏病的介入治疗

目的 评价应用Amplatzer封堵器进行介入治疗小儿先天性心脏病的效果、安全性。方法 超声心动图确诊的动脉导管未闭 (PDA)、房间隔缺损 (ASD)及膜部室间隔缺损 (膜部VSD)患者 4 9例 ,在透视或 /和经胸超声心动图 (TTE)指引下置入Amplatzer封堵器 ,术后 2 4小时 ,1、3、6、12个月及以后每年分别TTE、ECG和X线胸片检查评价治疗效果。结果 16例ASD球囊测量缺损伸展径为 13～ 2 8(平均 19 3± 4 9)mm ,选择封堵器直径 13～ 30 (平均 2 0 6± 5 1)mm ;2 5例PDA造影测量PDA最窄处直径为 2～ 7 7(平均 3 9± 1 5 )mm ,选择封堵器直径 4～ 12 (平均 6 6± 1 9)mm ;8例膜部VSD造影测量VSD直径 3 4～ 8(平均 4 7± 2 3)mm ,选择封堵器直径 6～ 10 (平均 7 8±1 7)mm。技术成功率为 10 0 % ,术中未发生任何并发症 ,无急诊手术病例。术后即刻造影或TTE显示 10例存在残余分流 ,3个月TTE示所有病例无残余分流和再通 ,心室内径均有不同程度的缩小 ,肺动脉压下降。结论 应用Amplatzer封堵器介入治疗小儿先天性心脏病 ,具有操作简单、安全、损伤小、成功率高等优点 ,适合于儿童继发孔型ASD。