Valvuloplasty of fetal pulmonary atresia with intact ventricular septum and hypoplastic right heart: Mid-term follow-up results

Objective:This study aimed to analyze and evaluate the results of mid-term follow-up after fetal pulmonary valvuloplasty(FPV)in fetuses with pulmonary atresia with intact ventricular septum(PA/IVS).Methods:From August 31,2018,to May 31,2019,seven fetuses with PA/IVS and hypoplastic right heart were included in this study.All underwent echocardiography by the same specialist and were operated on by the same team.Intervention and echocardiography data were collected,and changes in the associated indices noted during follow-up were analyzed.Results:All seven fetuses successfully underwent FPV.The median gestational age at FPV was 27.54 weeks.The average FPV procedural time was 6 min.Persistent bradycardia requiring treatment occurred in 4/7 procedures.Finally,five pregnancies were successfully delivered,and the other two were aborted.Compared to data before fetal cardiac interventions(FCI),tricuspid valve annulus diameter/mitral valve annulus diameter(TV/MV)and right ventricle diameter/left ventricle diameter(RV/LV)of all fetuses had progressively improved.The maximum tricuspid regurgitation velocity decreased from 4.60 m/s to 3.64 m/s.The average follow-up time was 30.40±2.05 months.During the follow-up period,the diameter of the tricuspid valve ring in five children continued to improve,and the development rate of the tricuspid valve was relatively obvious from 6 months to 1 year after birth.However,the development of the right ventricle after birth was relatively slow.It was discovered that there were individual variations in the development of the right ventricle during follow-up.Conclusion:The findings support the potential for the development of the right ventricle and tricuspid valve in fetuses with PA/IVS who underwent FCI.Development of the right ventricle and tricuspid valve does not occur synchronously during pregnancy.The right ventricle develops rapidly in utero,but the development of tricuspid valve is more apparent after birth than in utero.

Ductus Arteriosus Stent Compared with Surgical Shunt for Infants with Ductal-Dependent Pulmonary Blood Flow: A Systematic Review and Meta-Analysis

The aim of this study was to perform a systematic review and meta-analysis to evaluate the safety and efficacy of ductus arteriosus stent(DAS)compared with surgical systemic-pulmonary artery shunt(SPS)in patients with ductal-dependent pulmonary blood flow.A literature search was conducted in PubMed,Embase,and the Cochrane Library databases from their inception to December 2020.Two reviewers independently screened the articles,evaluated the quality of the articles,and collected the data.Meta-analyses were conducted using fixed and random effects models.We used the I-square(I2)test to examine heterogeneity and the funnel plot Egger’s test was used to test for publication bias.We analyzed nine studies including 842 patients were included in the present study(DAS:n=295;SPS:n=547).There was a benefit in favor of DAS group for medium-term mortality(RR,0.63;95%CI,[0.40,0.99];P=0.91,I^(2)=0%).DAS group demonstrated a reduced risk for complications compared with SPS(RR,0.46;95%CI,[0.29,0.72];P=0.78,I^(2)=0%).There was an increased risk for unplanned reintervention for DAS(RR,1.77;95%CI,[1.42,2.20];P=0.61,I2=0%).DAS demonstrated shorter mean intensive care unit length of stay(MD,–5.12;95%CI,[–7.33,–2.91];P=0.005,I^(2)=76%).There was also demonstrated higher postprocedure oxygen saturation for SPS over DAS(MD,1.78;95% CI,[0.92,2.64];P=0.46,I2=0%).There was no difference between the two groups in terms of mortality within 30 days,Nakata Index,and hospital length of stay.Conclusions:In terms of initial palliative surgical in the ductal-dependent pulmonary blood flow,DAS demonstrated a lower risk of medium-term mortality,lower risk of complications,higher risk of unplanned reintervention,shorter ICU length of stay,and higher postprocedure oxygen saturation compared with SPS.

Transcatheter Closure of Perimembranous Ventricular Septal Defect Using the Amplatzer Duct Occluder II

Objective:To evaluate the efficacy of Amplatzer duct occluder II(ADO II)in the treatment of perimembranous ventricular septal defect(pmVSD)in children.Methods:Between June 2017 and June 2020,13 patients with pmVSD had attempted transcatheter closure using ADO II,seven of patients were used antegrade approach and six of them were used retrograde approach.Results:There were 8 males and 5 females,age from 1 to 7 years,weight from 10.5 to 31.0 kg,and VSD size from 2.0 to 4.0 mm.Procedure was successful in all cases with the outer diameter of the occluders ranging from 4 to 6 mm.No aortic,tricuspid regurgitation or residual shunt was found in the immediate ultrasound assessment.No arrhythmia was observed in the Holter monitoring 3 days after the intervention.Discharge echocardiography indicated complete shunt closure.No evidence of occluder prolapse,malignant arrhythmia,or intensed valve regurgitation was seen on a median follow-up of 18 months(range,6 to 36 months).Conclusions:Based on our experience,ADO II showed good efficacy in the early and middle stages of pediatric pmVSD closures.

Creation of high position fetal balloon atrial septoplasty for hypoplastic left heart syndrome and highly restrictive atrial septum: A case report and literature review

Background:Fetal balloon atrial septoplasty(BAS)is performed through the restrictive foramen ovale in fetal cases with established hypoplastic left heart syndrome(HLHS)and an intact or highly restrictive atrial septum(RAS).Methods:In the current report,we present a case of high position BAS in a fetus with HLHS/RAS.Results:Echocardiography confirmed an adequate atrial opening above the foramen ovale and fetal pleural effusion resolved spontaneously 1 day after the procedure.Conclusion:To the best of our knowledge,the creation of a high position hole in the thinner part of the atrial septum,instead of the restrictive tiny hole,has not been reported in fetal cases with HLHS/RAS.

一种新型语义网络分析模型对室间隔完整型肺动脉闭锁和危重肺动脉瓣狭窄胎儿右心发育不良程度的评价作用

目的分析评价一种新型语义网络分析模型SPReCHD:残差学习诊断系统模块(RLDS)和双路径链式多尺度门控轴心变压器网络模块(DPC-MSGATNet),在室间隔完整型肺动脉闭锁(PA/IVS)和危重肺动脉瓣狭窄(CPS)胎儿超声心动图四腔心视图数据集中评估右心发育不良程度分级的性能。方法回顾性收集2017年6月至2022年12月青岛大学附属妇女儿童医院350例24~28周胎龄的PA/IVS和CPS胎儿的1650张单幅超声心动图四腔心视图建立实验数据集。根据右心发育不良程度对建立的SPReCHD模型进行训练、验证和测试,评估模型精确度、召回率及F1值等性能指标;与高级医师基于超声指标、右心室形态及出生结局等多维度信息对测试集做出的评估结果进行比较,采用Kappa检验观察评估的一致性。结果SPReCHD模型在训练集、验证集及测试集对右心发育不良程度分级评估的精确度分别为93.82%、94.34%和94.68%,召回率分别为90.54%、91.38%和90.89%,F1值分别为92.10%、92.82%和92.67%。在测试集中,SPReCHD模型与高级儿童心血管医师评估结果一致性良好(Kappa值=0.724,P<0.001)。结论SPReCHD模型在训练集、验证集及测试集对右心发育不良程度分级的评估性能优异。该模型对PA/IVS和CPS胎儿右心发育不良程度分级评估水平与高级医师评估结果一致性好,为进一步提出精准评估标准奠定基础。

2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents

Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up.

Fetal pulmonary valvuloplasty for pulmonary atresia with intact ventricular septum:a single-center clinical experience

To the Editor:Fetal pulmonary atresia with intact ventricular septum(PA/IVS)or critical pulmonary stenosis(CPS)is a progressive disease from the time of midgestation diagnosis to birth.Elevated right ventricular(RV)afterload results in RV hypertrophy and reduced compliance,as well as a lack of flow through the right side of the heart.