“Guidezilla”extension catheter combined with balloon technique for treating pulmonary artery stenosis caused by Takayasu arteritis

Takayasu arteritis(TA)is a rare systemic vasculitis of the aorta and its primary branches,which usually occurs in young women.Due to its insidious onset and lack of specific symptoms,this disease can be easily misdiagnosed or missed.Approximately 50%of the patients having TA with pulmonary artery involvement develop pulmonary hypertension(PH).The 3-year survival rate among patients with TA-related PH is lower than that among patients with TA alone.Early balloon pulmonary angioplasty(BPA)can improve the clinical symptoms and survival of patients with stable TA.To the best of our knowledge,this is the first case reported in the English literature in which a“Guidezilla”catheter was used during BPA to treat stenosis and occlusion of the pulmonary artery caused by Takayasu arteritis(TA).

Effectiveness and Safety of Double-balloon Catheter versus Intra-amniotic Injection of Ethacridine Lactate for Termination of Second Trimester Pregnancy in Patients with Liver Dysfunction

Severe liver dysfunction in pregnancy（SLDP） is rare but serious complications with high mortality rate. This study compared the effectiveness and safety of double-balloon catheter versus intra-amniotic injection of ethacridine lactate for the termination of second trimester pregnancy in patients with SLD. A total of 55 patients with indications of labor induction were enrolled and analyzed by retrospective control analysis method. Twenty-three cases adopted Cook double balloon dilation as Cook group, and 32 cases received intra-amniotic injection of ethacridine lactate as EL group. The primary outcome was evaluated by successful abortion rate and the difference in the induction-to-abortion interval. Secondary outcomes included liver function recovery and the frequency of adverse events. Both Cook and EL regimens were effective, with successful abortion rate of 87.0% and 93.8%, respectively（P=0.639）. The induction-to-delivery interval was similar between Cook group and EL group（38.1±21.5 vs. 41.3±17.4, P=0.543）. The liver disease status was more severe in Cook group than in EL group, but it did not show any significant difference after pregnancy termination between the two groups and the improvement rate also did not show any significant difference. Both treatments were safe and there was no significant difference in bleeding and cervical laceration adverse events between the two groups. Our study firstly compared double-balloon catheter and ethacridine lactate for the induction of labor in women with SLD during second trimester pregnancy.

Balloon-occluded transcatheter arterial chemoembolization for hepatocellular carcinoma

Transcatheter arterial chemoembolization(TACE) is widely accepted as a treatment for patients with hepatocellular carcinoma(HCC) in the intermediate stage according to the Barcelona Clinic Liver Cancer(BCLC) guidelines. Recently, balloon-occluded TACE(B-TACE) was developed in Japan. Despite the lack of a clear definition, B-TACE is generally defined as the infusion of emulsion of chemotherapeutic agents with lipiodol followed by gelatin particles under the occlusion of feeding arteries by a microballoon catheter, which leads to the dense lipiodol emulsion(LE) accumulation in HCC nodules. This phenomenon cannot be explained only by the prevention of proximal migration and leakage of embolization materials; it further involves causing local changes in the hemodynamics of the surrounding occlusion artery and targeted HCC nodules. Balloon-occluded arterial stump pressure plays an important role in the dense LE accumulation in targeted HCC nodules. Although randomized controlled trials comparing the therapeutic effect and the prognosis of B-TACE to those of the other TACE procedures, such as conventional-TACE and drug-eluting beads TACE, are still lacking, B-TACE is thought to be a promising treatment. The purpose of this review is to summarize the mechanism, therapeutic effect, indication, prognosis and complications of BTACE.

Foley Balloon Catheter versus Oral Misoprostol for Induction of Labour after Prelabour Rupture of Membranes: A Retrospective Data Analysis

Objectives: The Foley balloon catheter (FC) is a viable method for cervical ripening, but concerns about infection risk restrict its use in cases of prolonged prelabour rupture of membranes (PROM). This study aims to evaluate the efficacy and safety of the FC compared to oral misoprostol for cervical ripening after PROM. Study Design: A retrospective data-analysis of 128 pregnant women was conducted. Of these, 49 underwent cervical ripening with an FC and 79 with oral misoprostol. We included all women with a vital singleton pregnancy at 37 - 42 weeks of gestation who underwent cervical ripening after ≥ 24 hours of PROM in specific time frames in two Dutchsecondary care and teaching hospitals. The primary outcome was the incidence of intrapartum infection, a composite of maternal and neonatal infection. In addition, we evaluated the mode of delivery, duration of priming and priming-to-delivery interval. Secondary endpoints included uterine hyperstimulation, umbilical cord prolapse, birth weight, Apgar scores, length of admission to the neonatal low dependency unit, admission to the (neonatal) Intensive Care Unit (ICU) and mortality. Statistical analyses included bivariate and multivariate techniques. Results: Cervical ripening with FC, compared with oral misoprostol, showed a higher incidence of intrapartum infection, respectively 32.7% (n = 16) vs. 12.7% (n = 10) (p = 0.006). However, after adjusting for epidural anaesthesia and pregestational BMI, the association was no longer significant. No difference was found in mode of delivery and total priming-to-delivery interval (median 21.3 hours vs. 22.0, p = 0.897). Furthermore, FC, compared with oral misoprostol, showed a longer duration of cervical ripening and hence a shorter duration of active labour (p 0.001). Apart from the 1-min Apgar score, secondary maternal and neonatal outcomes did not differ between the groups. Conclusion: In women who require cervical ripening after prolonged PROM at term, the FC and oral misoprostol are similar in terms of efficacy and safety. Advantages associated with the FC are its safe application in women with a history of caesarean section, although we did not study these women, and an implied shorter duration of active labour. Our study adds to the limited available data on the use of the FC after the rupture of membranes and a large randomized controlled trial is needed to strengthen our findings.

Transoesophageal emergency ventricular pacing with esophageal balloon electrode catheter

Objective To evaluate the safety and possibility of transesophageal emergency ventricular pacing with esophageal balloonelectrode catheter.Methods Sixty four patients with critical bradyarrhythmias were divided randomly to receive either transesophagealventricular pacing with esophageal balloon electrode catheter(balloon.catheter group,n=32),or transesophageai ventricular pacing withnormal esophageal electrode catheter(normal catheter group,n=32).Pulse width(ms),current output(mA),and the success rate werecompared between the 2 groups.Results Success rate in the balloon catheter group was 87.5%,which was significantly higher thanthat in the nodal catheter group(18.7%,X2=27.7,P＜0.01).The success rate oftransesophageal ventricular pacing with esophagealballoon electrode catheter was 87.5%.The average current output(mA)was significantly lower in the balloon catheter group than thatin the normal catheter group (24.5+2.5 mA VS 53±3.4mA,P＜0.05).Conclusions Esophageal balloon electrode catheter pacing couldbecome an available teclmiqBe for transesophageal emergency ventricular pacing.

Safety and efficacy of the SeparGateTM balloon-guiding catheter in neurointerventional surgery:A prospective,multicenter,single-arm clinical trial

Objective:To evaluate the safety and efficacy of the SeparGateballoon-guiding catheter(BGC)for blocking flow and delivering devices in neurointerventional surgery.Method:This prospective multicenter single-arm trial enrolled patients who received BGC adjuvant therapy to provide temporary blood flow arrest of the supra-aortic arch arteries and their branch vessels in interventional therapy.The primary endpoint was immediate procedural success rate in flow arrest,device delivery,and withdrawal.The efficacy endpoints were intraoperative product performance,including rigidity,smoothness,fracture resistance of the catheter wall,catheter push performance,compatibility and radiopaque display,integrity,adhesion thrombus after withdrawal and balloon rupture.The safety endpoints were adverse and serious adverse events associated with the test device and serious adverse events resulting in death or serious health deterioration.Result:A total of 129 patients were included;of them,128 were analyzed in the full analysis set(FAS)and per protocol set(PPS).Immediate procedural success was achieved in 97.7%of patients with FAS and PPS.The lower bound of the 95%confidence interval was 94.6%,higher than the preset efficacy margin of 94%.Device-related adverse events occurred in 2(1.6%)cases.One was mild adverse event of vasospasm,which resolved spontaneously.The other was serious adverse event of dissection aggravation,which was treated with stenting angioplasty.No device defects were observed.Conclusion:In neurointerventional surgery,the SeparGateBGC can be used to temporarily block the flow of the supra-aortic arch arteries and their branch vessels and guide the interventional device to the target vascular position.

A simple practical balloon anchoring technique within the guide catheter for chronic total occlusion (CTO) of the coronary artery

Dear Editor： Chronic total occlusions （CTOs） of the coronary artery are commonly encountered complex lesionst11. Percutaneous coronary intervention （PCI） for CTO is technically challenging due to low procedural success ratesTM. Microcatheter is one of the important devices for treatment of CTOTM. It has been widely used attributed to the excellent crossability whenever angula- tion and tortuousity of the coronary artery is encoun- tered. In the process, the microcatheter has to be withdrawn from the guide wire after the wire is proved to locate in the true lumen.

Control of Postpartum Haemorrhage with Uterine Balloon Tamponade Using Foley Catheter in a Rural Mission Hospital in Ebonyi State, Southeast Nigeria

Background: Postpartum haemorrhage is the leading cause of maternal deaths worldwide, the majority of which occur in low resource settings. Uterine atony is the commonest cause of postpartum haemorrhage. Uterine balloon tamponade (UBT) is an effective method of treating refractory postpartum haemorrhage. Aim: Commercial UBT devices are often not affordable and not readily available in rural settings. The aim of this paper is to report on three cases of postpartum haemorrhage successfully managed with uterine balloon tamponade using Foley catheters. Case Reports: We report on three patients with major obstetric haemorrhage from uterine atony who were successfully managed with uterine balloon tamponade using Foley’s urethral catheter. The first two patients had primary postpartum haemorrhage while the third patient had significant bleeding during the surgical evacuation of the uterus for a molar pregnancy. In each case, uterine bleeding was refractory to pharmacologic uterotonics. They all had uterine tamponade with a Foley catheter with the dramatic resolution of their bleeding. Conclusion: In well-selected patients, uterine balloon tamponade with Foley catheter is cheap, arrests bleeding and prevents clinical deterioration among women with refractory postpartum haemorrhage, especially in low resource settings where commercial balloon tamponade may not be available or affordable.

A New Application of Balloon Catheter in TAE

We report a new embolization method with cobra catheter and balloon catheter in TAE for aneurysms and arterioportal fistula. Embolization for one aneurysm and one arterioportal fistula was performed using a cobra catheter, and the target vessel was temporarily blocked using a balloon catheter during the intervention. 2 cases of aneurysms and arterioportal fistula were treated successfully without coils reflux. Application of both cobra catheter with balloon catheter in TAE is effective without complication.

The developm ent of m ultifunctionballoon dilatation catheter

Multifunction balloon dilatation catheter used in the dilation of mitral stenosis is designed and manufactured.Discussion about the design and its function of the measuring pressure tube newly added is made.It all is successful that this catheter was used in the procedure of percutaneous transvenous mitral commissurotomy (PTMC),totally 58 patients.This new catheter is easily operated and can measure mitral pressure gradient without left heart catheterization preventing the complications,compared with the double lumen balloon catheter.

The finite deformation of the balloon catheter

The balloon-based catheters are attractive tot the minimally invasive procedures because these cameters can be configured to match requirements on size and shape for the interaction with the soft tissue. An analytical mechanic model is developed for the deformed balloon to determine the shape of the inflated catheter. The bridges along latitudinal direction should be high stretchable due to the high elongation along the latitude of the inflatable catheter, These results agree well with the finite element method without any parameter fitting.

A Novel, Safe Way of Removing Non-Deflatable Bladder Catheter

Non-deflated balloon of a transurethral inserted bladder catheter is a problem that could be difficult to manage, especially in males. A variety of methods have been described to puncture the balloon and remove the catheter, though these can be associated with complications. We illustrate a simple and a safe method to overcome this problem using a flexible cystoscope under local anaesthesia.

An Extremely Effective and Safe Approach of Guiding Catheter Crossing over Spasmodic Radial or (and) Brachial Artery in Patients Whose Percutaneous Coronary Intervention Was Undergone via Radial Artery Access

Objective: Percutaneous coronary intervention (PCI) via the radial artery access has more advantages than that of femoral artery access, while radial or (and) brachial artery have tendency to be spasmodic. We sought to investigate the effectiveness and safety of guiding catheter crossing over spasmodic radial or (and) brachial artery segments by the aid of PCI wire and balloon compared with traditional anti-spasmodic approach. Methods: The clinical data of 168 patients with coronary artery disease (CAD) (group A), whose PCI was performed via radial artery access with radial or (and) brachial artery spasm or (and) dissection and guiding catheter passing through spasmodic segments successfully by the aid of PCI guiding wire and balloon were analyzed retrospectively, simultaneously, the other 73 patients (group B) who used conventional approach to cross over the spasmodic radial or (and) brachial artery segments were treated as the control. The success rate, the time consumption and the complication were compared between the two groups. Findings: There was no significant difference in the spasmodic site between the two groups (all p value > 0.05). The success rate in group A was significantly higher than that in group B (168(100%) vs 28 (38.4%), p (4.2%) vs 14 (19.2%), p Conclusions: It is more effective and safer for guiding catheter crossing over spasmodic or (and) dissected radial or (and) brachial artery segments by the aid of PCI guiding wire and balloon than using the routine approach of administration of anti-spasm drugs for trans-radial PCI.

Cervical Ripening for Induction of Labor: A Randomized Comparison between Vaginal Misoprostol versus Foley’s Catheter Placement in a Nigeria Tertiary Hospital

Background: Cervical ripening is prerequisite of successful induction of labor. Vaginal misoprostol and Foley’s catheter placement have been widely used for this purpose but the data are not always sufficient. We attempted to determine which (misoprostol versus Foley’s catheter) is more effective/safer in Nigerian setting. Methods: A randomized controlled trial was performed at Federal Teaching Hospital Abakaliki, Nigeria, involving 135 term pregnant women requiring cervical ripening and labor induction. Participants were randomly allocated to misoprostol versus catheter group. The following were recorded/measured/analyzed: Bishop’s score, age, parity, body mass index, gestational age, labor duration, indication, oxytocin use, mode of delivery, and Apgar score. Chi square test and t test were used where appropriate. Results: At 24 hours, all of misoprostol group were either in labor, had ripe cervix, or had delivered, whereas 35.4% of catheter group had still unripe cervix (x2 = 29.856, P = 0.0001). Misoprostol group was less likely to require oxytocin infusion (x2 = 52.600, P = 0.0001) and less likely to require cesarean delivery (cesarean: misoprostol versus catheter: 11% versus 34% (x2 = 9.800, P = 0.001)). Total medical cost for misoprostol was less than that of catheter (x2 = 14.703, P = 0.0001). Conclusion: 50 μg vaginal misoprostol, compared with catheter placement, was more effective, cheaper, and safe as a procedure of cervical ripening before induction of labor.

Fastunnel导管在颅内动脉狭窄介入治疗中的价值

目的探讨新型输送型球囊扩张导管(Fastunnel导管)在颅内动脉粥样硬化性狭窄介入治疗中的临床应用价值。方法回顾性分析2022-06—2024-02郑州大学第一附属医院采用Fastunnel导管治疗的18例颅内动脉粥样硬化性狭窄患者的临床资料,所有患者均接受球囊扩张联合支架成形术,分析患者的临床资料、治疗情况、手术成功率及术后并发症发生情况。结果18例患者均成功接受介入手术治疗,手术成功率100%。术前血管狭窄率(78.94±5.3)%,病变血管长度(7.14±2.14)mm。手术时长21~58(43.56±9.05)min,治疗期间射线暴露时间10~28(21.3±3.56)min,辐射剂量1526~5281(3436.50±626.39)mGy。术后血管狭窄率(13.50±4.94)%。所有患者围手术期及术后均未出现并发症。结论Fastunnel导管治疗颅内动脉粥样硬化性狭窄具有较好的疗效和安全性,可简化手术步骤,提高手术效率,具有良好的临床应用价值。

血管内冲击波碎石术治疗股腘动脉重度钙化闭塞病变的临床效果

目的探讨血管内冲击波碎石术治疗股腘动脉重度钙化闭塞病变的临床疗效。方法收集2022年8月至2023年8月首都医科大学宣武医院收治的6例股腘动脉重度钙化闭塞病变患者的临床资料。所有患者均进行了血管内冲击波碎石术,观察患者的病变钙化程度、技术成功率、围手术期并发症发生情况及症状改善情况。结果经过血管内冲击波碎石术治疗后,6例患者的重度钙化斑块均发生不同程度的断裂,血管顺应性改善,管腔获得满意。最终3例患者使用药物洗脱球囊(DEB)扩张治疗,2例患者成功进行支架植入术,1例患者单纯使用冲击波球囊进行治疗,无手术相关并发症。术后患者的临床症状与ABI均得到改善。所有患者于住院期间、随访1个月均未发生主要不良心血管事件。结论对于股腘动脉重度钙化闭塞病变,血管内冲击波碎石术能够充分断裂钙化环,重塑血管顺应性,并发症发生率低,安全有效。

鼻窦球囊扩张术治疗成人慢性鼻窦炎有效性和安全性的系统评价

目的评价鼻窦球囊扩张术(SBCD)治疗成人慢性鼻窦炎的疗效及安全性。方法检索Pubmed、Medline、CNKI、CBM、维普、万方数据库,收集所有符合纳入标准的随机对照研究,采用Revman5.4软件对提取的数据进行Meta分析。结果共纳入13个研究。Meta分析显示:SBCD组与对照组成功扩张窦口比率相当;SBCD组术后3月SNOT-20评分、术后6月SNOT-20评分、术后3月Lund-Kennedy内镜评分、术后3月嗅觉功能正常比率与对照组比较,差异无统计学意义;SBCD组术后并发症发生率低于对照组,差异有统计学意义。结论鼻窦球囊扩张术治疗成人慢性鼻窦炎效果与功能性鼻内镜鼻窦手术相当,并发症发生率更低,在临床治疗中值得推广。

血管通路顽固性狭窄病变递进处置策略及临床分析

目的对于动静脉内瘘顽固性狭窄病变,采取递进处置策略进行干预治疗,分析该方案治疗的预后,旨在探讨更为有效合理的动静脉内瘘维护手段。方法回顾性分析2020年6月—2021年6月在南京医科大学第二附属医院血液净化中心因高位自体动静脉内瘘(autologous arteriovenous fistula,AVF)头静脉弓狭窄和人工血管动静脉内瘘(arteriovenous graft,AVG)静脉吻合口区域狭窄首次行超声引导经皮腔内血管成形术(percutaneous transluminal angioplasty,PTA)治疗,并采取递进处置策略维护的患者,随访24个月观察内瘘的通畅和再干预情况,另与南京医科大学第二附属医院血液净化中心同类病变单纯以高压球囊维护的随访数据比较得出结论。结果高位AVF头静脉弓狭窄采取递进处置策略维护的患者31例,单纯以高压球囊扩张规律维护的患者16例,随访24个月,两者在再干预次数(t=4.461,P<0.001)、再干预后平均通畅时间(t=3.550,P<0.001)及PTA辅助通畅率(χ^(2)=5.562,P=0.021)方面比较差异有统计学意义;AVG静脉吻合口区域狭窄采取递进处置策略维护的患者68例,单纯以高压球囊扩张规律维护的患者58例,随访24个月,两者在再干预次数(t=5.094,P<0.001)及再干预后平均通畅时间(t=3.251,P=0.002)方面比较差异有统计学意义。结论采取递进处置策略,循序渐进地使用各种介入治疗器械以及手术方案处置动静脉内瘘顽固性狭窄病变可以提高PTA的通畅性,减少干预频次,改善预后。

不同导管胸膜腔置管闭式引流治疗自发性气胸疗效比较

目的:比较不同导管胸膜腔置管闭式引流治疗自发性气胸疗效。方法:选取新乡市第一人民医院2018年9月至2023年9月收治的90例自发性气胸患者作为研究对象,应用随机数字表法将其分为三组,即中心静脉导管组、胸腔引流管组与三腔气囊导尿管组,各组均为30例。所有患者均采取胸膜腔置管闭式引流术进行治疗,三组患者分别采取中心静脉导管、胸腔引流管和三腔气囊导尿管进行引流。比较三组患者临床疗效,置管时疼痛发生率、置管时出血量、二次置管率与调整引流管率,平均切口大小、肺复张时间、置管时间、住院时间,术后疼痛程度,术后并发症发生情况。结果:胸腔引流管组和三腔气囊导尿管组的总有效率高于中心静脉导管组;中心静脉导管组和三腔气囊导尿管组患者置管时疼痛发生率、二次置管率与调整引流管率以及置管时出血量均明显低于胸腔引流管组;中心静脉导管组患者平均切口大小明显短于三腔气囊导尿管组和胸腔引流管组,且三腔气囊导尿管组短于胸腔引流管组;术后1 d、3 d、5 d,中心静脉导管组和三腔气囊导尿管组患者的视觉模拟评分法(VAS)评分明显低于胸腔引流管组,中心静脉导管组和三腔气囊导尿管组切口感染、肺水肿/皮下气肿、胸膜反应发生率明显低于胸腔引流管组;差异均具有统计学意义(P<0.05)。结论:采取胸腔引流管与三腔气囊导尿管进行胸膜腔置管闭式引流治疗自发性气胸疗效优于中心静脉导管,而应用中心静脉导管和三腔气囊导尿管患者置管时疼痛发生率较低,能够降低二次置管率、创伤性较低,降低术后疼痛程度,减少并发症发生率。

导管溶栓联合髂静脉球囊扩张对急性下肢深静脉血栓合并Cockett综合征并发症及凝血功能的影响

目的 分析导管溶栓联合髂静脉球囊扩张对急性下肢深静脉血栓(DVT)合并Cockett综合征病人疗效、并发症及凝血功能的影响。方法 2018年3月~2022年9月收治的急性DVT合并Cockett综合征病人102例,按治疗方法分为两组,研究组53例,采用导管溶栓联合髂静脉球囊扩张治疗;对照组49例,采用导管溶栓治疗。两组病人术后均随访1年。比较两组病人血栓清除情况、患肢消肿情况、下肢血流动力学、凝血功能、外周血炎症因子、并发症及血栓复发情况。结果 研究组血栓清除分级优于对照组,差异有统计学意义(P<0.05)。对照组术前、术后1年患侧与健侧膝上腿围周径差分别为(8.02±1.41)cm、(2.89±0.32)cm,研究组分别为(8.19±1.38)cm、(2.57±0.29)cm,对照组术前、术后1年患侧与健侧膝下腿围周径差分别为(6.84±1.18)cm、(2.13±0.38)cm,研究组分别为(6.63±1.09)cm、(1.76±0.32)cm,差异有统计学意义(P<0.05),研究组术后1年更低(P<0.05)。对照组术前、术后3天股静脉平均血流速度分别为(24.75±4.03)cm/s、(28.82±4.29)cm/s,研究组分别为(24.02±3.86)cm/s、(30.94±4.37)cm/s,对照组术前、术后3天股静脉血流量分别为(13.02±2.12)ml/s、(15.05±2.29)ml/s,研究组分别为(13.36±2.09)ml/s、(16.26±2.34)ml/s,差异有统计学意义(P<0.05),研究组术后3天更高(P<0.05)。对照组术前、术后3天凝血酶原时间分别为(22.93±2.04)s、(18.13±1.34)s,研究组分别为(23.24±1.99)s、(17.29±1.21)s,对照组术前、术后3天凝血酶时间分别为(24.86±2.31)s、(21.04±1.75)s,观察组分别为(24.13±2.16)s、(19.89±1.53)s,对照组术前、术后3天活化部分凝血活酶时间分别为(59.21±3.92)s、(49.13±3.02)s,观察组分别为(60.17±3.85)s、(47.09±2.98)s,差异有统计学意义(P<0.05),研究组术后3天更低(P<0.05)。研究组术前肿瘤坏死因子(TNF)-α、血小板活化因子(PAF)、血栓素B2(TXB2)分别为(31.91±4.89)ng/L、(14.59±2.36)pg/ml、(213.12±30.98)pg/ml,术后3天分别为(36.24±4.29)ng/L、(16.12±2.59)pg/ml、(239.86±32.85)pg/ml,差异有统计学意义(P<0.05),研究组术后3天TNF-α、PAF、TXB2更高(P<0.05)。两组总并发症发生率比较差异无统计学意义(P>0.05)。研究组血栓复发率低于对照组(3.77%比16.33%,P<0.05)。结论 导管溶栓联合髂静脉球囊扩张治疗急性DVT合并Cockett综合征可增强血栓清除效果,并改善患肢肿胀情况及下肢血流动力学及凝血功能,降低血栓复发风险,安全可靠,但该治疗方案可介导炎症反应发生,术后应积极实施合理抗炎治疗。