Transcatheter closure of secundum atrial septal defect

Since the introduction of transcatheter closure of atrial septal defect, device closure has become the alternative treatment of selected atrial defects. Although excellent results have been reported for transcatheter closure, concerns have arisen regarding complications, including residual shunt, systemic or pulmonary embolization of the device, and erosion and perforation of the cardiac chamber. Those complications are rare but potentially serious adverse events that may require immediate surgical intervention. This review summarizes the current trends in patient selection, result of device closure and typical complications. Comparison between transcatheter device closure and surgical closure is also made.     

Surgical device closure a new technique of ASD closure

Background Conventional approach of atrial septal defect (ASD) closure with cardio pulmonary bypass using mid sternotomy, minimally invasive or endoscopic technique is time tested. We decided to use custom made device with direct minimally invasive approach without cardio pulmonary bypass. Percutaneous transfemoral route using custom made device is a well established procedure performed by interventional cardiologist with occasional trauma and vessels. Method We performed the procedure in 3 patients of secundum ASD deemed adequate for device closure. We used a mini Right anterior thoracotomy approach using a double umbrella device which was implanted through direct Right Atrial puncture. Results In two patients we were successful in deploying the device. The proedure lasted 30 minutes with small infra Mammary scar and the post operative period was uneventful. In the third case where our attempt at surgical device closure failed the inferior margin was only one mm. The optimal size device kept slipping into the right atrium when the guide-wire was tugged after final deployment. The placement of an oversize device distorted the mitral valve, may causing regurgitation. Conclusion We think that this is a simple and safe technique of secundum ASD closure without cardio pulmonary bypass.     

经导管室间隔缺损封堵术后房室传导阻滞的危险因素

室间隔缺损是常见的先天性心脏病。自应用Amplatzer偏心型膜周部室间隔缺损封堵器治疗室间隔缺损以来,随着封堵器的改进与国产化,经导管室间隔缺损封堵术已在临床广泛开展,房室传导阻滞因其对心功能及远期预后的影响日益受到关注。本文对经导管室间隔缺损封堵术后发生房室传导阻滞的各种危险因素进行综述。     

Surgical removal of an embolised patent ductus arteriosus amplatzer occluding device in a 4-year-old girl

Alternative strategy of non-surgical closure of patent ductus arteriosus (PDA) is presently the first line of therapy. Several devices are being used for transcatheter closure of PDA. A four-year-old girl underwent a second attempt at PDA closure with an amplatzer device. However, after the deployment of the device it got dislodged into the right pulmonary artery hilum. Several attempts by catheter retrieval failed. The girl underwent surgical removal of the device which was complicated by pulmonary artery injury and subsequent repair was performed on cardiopulmonary bypass.     

带线穿刺缝合器在腹腔镜胆囊切除术切口缝合中的应用

目的:探讨带线穿刺缝合器在腹腔镜胆囊切除术(laparoscopic cholecystectomy,LC)戳孔缝合中的应用价值。方法:回顾分析2015年1月至2015年6月660例LC术中应用带线穿刺缝合器缝合穿刺孔的临床资料。结果:本组660例患者采用两枚10 mm Trocar孔用带线穿刺缝合器顺利完成缝合,缝合时间1~2 min,缝合过程中无腹腔内脏器损伤。15例患者术中Trocar孔出血,术毕均用带线穿刺缝合器跨过出血点缝合打结止血成功。术后发生切口感染8例,无一例发生切口出血。本组660例患者中607例获得随访,随访21~27个月,平均(23.9±1.8)个月,未发生戳孔疝。结论:LC术中用带线穿刺缝合器缝合穿刺孔简单、方便、安全且有效,可减少穿刺孔并发症的发生。     

Evaluation of a modified circular stapler for use as a viscerotomy formation and closure device in natural orifice surgery

Background  

The most challenging of the many hurdles surgeons must overcome to perform natural orifice translumenal endoscopic surgery (NOTES) safely is viscerotomy closure. The perfect device must be easy to deploy, suitable for use on any viscera, and able to create a rapid, reliable, and durable closure. The authors developed a novel device based on an existing circular stapler platform to create and then subsequently close a viscerotomy. The device was tested initially on an ex vivo porcine stomach model, then used on a survival canine model to confirm adequacy of gastric closure and rapidity of deployment.     

Severe Mitral Valve Insufficiency After Transcatheter Atrial Septal Defect Closure with the Amplatzer Septal Occluder: A Device-Related Complication

Abstract   Atrial septal defect (ASD) is the one of the most common congenital cardiac diseases. Percutaneous device closure of the ASD has developed as an alternative to traditional surgical closure with a similar outcome, decreased surgical trauma, and shorter hospital stay. However, several complications have been reported. We now report a rare complication of late severe mitral insufficiency (MI) after a successful closure of a secundum ASD with an Amplatzer device. The potential mechanisms may be the continual traction of the oversized mismatched device on the root of the mitral annulus and the insufficient rim to the mitral annulus. The patient was sent for a surgical operation to remove the device, and the defect was closed. No MI was found at the one-year follow-up.     

Port closure techniques

BACKGROUND: Laparoscopic trocars do create wounds. This article aims to review and list different techniques used for closure of the fascia incision at trocar sites. METHODS: A literature search was performed for articles dealing with closure techniques. The author searched this subject in English on Medline by combining the words "trocar" and "hernia," as well as "Deschamps" and "Reverdin." All articles reporting techniques with their references were reviewed. RESULTS: The articles described many techniques in addition to classical closure using curved needles, including Grice needle, Maciol needles, Endoclose device, Carter-Thomason device, Tahoe ligature device, Endo-Judge device, eXit puncture closure device, Lowsley retractor, spinal cord needles, dual hemostat, suture carrier, Riverdin and Deschamps needles, and Gore-Tex closure device. CONCLUSION: Three main groups of techniques were found with favor of extracorporeal manipulations under direct visualization. Old methods are sufficient and cost-effective.     

Techniques and results in the management of multiple muscular trabecular ventricular septal defects

The management of patients with multiple muscular trabecular ventricular septal defects (VSDs) remains controversial. In the past two decades, innovative techniques including a right ventricular apical infundibulotomy and transcatheter, intraoperative and perventricular device closure have been exploited, and essential right atrial approach and limited apical left ventriculotomy have also been refined. However, specific management guidelines for this difficult disease have not been established. In this article, the benefits and drawbacks of each technique are reviewed and discussed. Primary repair for infants with multiple muscular trabecular VSDs was associated with good late outcomes. The right atrial approach was satisfactory for all muscular VSDs, excluding apical defects that were well seen through a limited apical ventriculotomy. Surgical closure of apical defects could be achieved safely and completely in early infancy through a limited apical left ventriculotomy or a right ventricular apical infundibulotomy. Further follow-up and prudent evaluations of ventriculotomy-associated morbidities are needed. Pulmonary artery banding should be limited to a small infant with complex associated defects. Percutaneous device closure, the most desirable option, is impractical due to limitations between the delivery system and access route. Intraoperative device closure appears less successful than device closure in the catheterization laboratory. Perventricular device closure has a significant advantage of being a non-bypass procedure approach. A less invasive strategy for “true” Swiss cheese septum is needed. All may have an important role, and results obtained by using these techniques are encouraging. These hybrid approaches will promise future success on management guidelines of multiple muscular trabecular VSDs.     

血管闭合器研究进展

血管闭合器是用于经皮穿刺动脉后穿刺点止血的医疗器械,按照其原理主要分为主动血管闭合器和被动血管闭合器。本文针对常用血管闭合器的原理、适用范围及优缺点等进行综述。     

Use of the percutaneous vascular surgery device for closure of femoral access sites during endovascular aneurysm repair: lessons from our experience.

OBJECTIVES: to evaluate the results of our early experience with a percutaneous closure device for aortic aneurysm repair and to identify device related and patient related factors leading to procedure failure. METHODS: eighty-two percutaneous closures in forty-four patients was performed using the 10F Prostar XL Percutaneous Vascular Surgery device during the repair of 1 iliac, 1 thoracic and 42 abdominal aortic aneurysms. RESULTS: successful closure was achieved in 70 access sites (85%) with 12 sites requiring conversion to an open groin incision. The reasons for failure include difficult device introduction due to a tortuous iliac, deflection of needles due to previous scar, femoral artery occlusion and failure of the device to close the arteriotomy. There was one intraoperative death from retroperitoneal haemorrhage and another patient developed a pseudoaneurysm at the cannulation site. CONCLUSIONS: use of the percutaneous closure device requires very careful patient selection. Preoperative radiological assessment of the ilio-femoral vessels is vital to assess for cacification and tortuosity. High device failure rates can be expected from obese patients and those with scarred groins. When difficulty is encountered during the procedure, there should be a low threshold for conversion to an open groin incision. The device and the method of introduction can be further improved to address some of these issues.     

Delayed primary closure of fasciotomy wounds with Wisebands, a skin- and soft tissue-stretch device

BACKGROUND: Fasciotomy incisions for limb compartment syndrome usually cannot be closed primarily. The conventional method of wound closure with split-thickness skin grafting is effective, but it results in an insensate and disfiguring wound and is associated with donor site morbidity. We present our experience in delayed primary closure of fasciotomy wounds with Wisebands (WB), a skin- and soft tissue-stretching device. PATIENTS: Between 2000 and 2003, we treated 16 patients with extremity fasciotomy wounds for which primary closure was not feasible. RESULTS: The Wisebands devices achieved controlled stretching of the wound edges, including skin and underlying soft tissue, until primary closure was feasible. Fourteen patients (88%) had successful wound closure, two patients (12%) had minor wound complications that did not necessitate the removal of the device, and two patients had local wound complications (infection, intractable pain) and their devices were removed prematurely. Delayed primary closure was achieved at the initial surgery using intraoperative skin stretching in 3 of the 14 cases (21%). After a 2-year follow-up (1.3-4 years), the treated area showed stable scarring with good aesthetic outcome and no functional deficit. CONCLUSIONS: The Wisebands device facilitates closure of fasciotomy wounds with low complication rates and good functional and aesthetic outcome. Its application is simple and safe and requires a short learning curve. Nevertheless, appropriate patient selection, intraoperative judgment and close postoperative supervision are essential for optimal results.     

经心室穿刺封堵婴幼儿非肌部室间隔缺损39例

目的 探讨经心室穿刺封堵婴幼儿非肌部室间隔缺损(VSD)的临床效果.方法 2007年4月至2008年2月,治疗39例非肌部VSD病儿,男16例,女23例.年龄12～36个月,平均(14.5±7.8)个月;体重8.5～18.0 kg,平均(12.4±2.3)kg.其中膜周部VSD 34例、干下型3例、嵴内型2例.缺损直径3.0～11.0mm,平均(6.1±2.0)mm.均接受非体外循环下经右心室穿刺封堵VSD治疗.结果 全组均无需输血.37例封堵成功,2例因发生中度主动脉瓣反流改行直视手术.置入封堵器直径4～12 mm,平均(8.2±2.0)mm.术后膜周部VSD者中三尖瓣反流程度减轻3例,新出现微量至轻度三尖瓣反流8例;6例出现不完全性右柬支传导阻滞.术后住院3～5 d,平均(3.4±0.4)d.结论 经心室穿刺行VSD封堵术对婴幼儿非肌部VSD而言是一种有效和安全的治疗手段.     

Vacuum-assisted closure complicated by erosion and hemorrhage of the anterior tibial artery

We report an erosion and hemorrhage of a left anterior tibial artery associated with a vacuum-assisted closure device. To our knowledge, this report represents the first arterial erosion associated with a vacuum-assisted closure device. We estimate our patient lost 6 units of blood. The hemorrhage was complicated by anticoagulation and a traumatic setting. Based on our complication, we believe great care should be taken when placing a vacuum-assisted closure device adjacent to an exposed artery.     

Late tamponade secondary to aortic root perforation by BioSTAR septal closure device

We report a patient who presented with pericardial tamponade 9 months after percutaneous closure of a patent foramen ovale using a BioSTAR septal closure device (NMT Medical, Boston, MA). During the operation, bleeding was observed on the posterior aortic root caused by a nonendothelialized strut. The device was explanted, followed by pericardial patch aortoplasty and patch closure of the patent foramen ovale. This report presents a case of late tamponade related to the new-generation bioabsorbable BioSTAR device. Although late complications related with BioSTAR are rare, the presentation may be dramatic. A high index of suspicion and quick intervention is often lifesaving.     

The application of the V-Loc closure device for gastrointestinal sutures: a preliminary study

Background

Leakage is one of the major complications in gastrointestinal surgery. This preliminary study compared a new barbed absorbable thread for gastrointestinal sutures with monofil suture material in a cadaver model.

Methods

In this study, mechanical experiments were performed in 20 recently deceased individuals. Incisions were made in the small intestine, colon, and stomach, and then sutures were created with the V-Loc closure device and monofil suture material. Intestinal bursting pressure was measured by inserting a balloon and slowly filling it with air until there was a dehiscence, or wall or suture rupture.

Results

The bursting pressures differed significantly between the two sutures in the small intestine, showing the advantage of the V-Loc closure device, which had a mean bursting pressure of 116.2 mmHg compared with 110 mmHg for the monofil suture (p = 0.003). The mean bursting pressure did not differ significantly between the two sutures in the colon and the stomach. The mean bursting pressures for the V-Loc closure device were 141.3 mmHg (stomach) and 137.2 mmHg (colon) compared with the monofil suture material bursting pressures of 133 mmHg (stomach) and 134.8 mmHg (colon).

Conclusions

Because the bursting strength of the sutures created with monofil suture material differs significantly from that of the V-Loc closure device, the V-Loc suture material should be used for gastrointestinal sutures. Although the two sutures did not differ significantly in the colon or the stomach, the V-Loc closure device should be used for these as well because its advantages may overrule those of the monofil suture. No knot tying is required, and the operating time can be shorter. Especially for laparoscopic surgery, the V-Loc closure device is recommended.     

Initial experience with a novel endoscopic device allowing intragastric manipulation and plication

Background Current developments in intraluminal and transluminal natural orifice surgery are limited by issues of access, tissue manipulation, and secure tissue approximation/closure. This report describes an initial laboratory experience with a novel tissue approximation and suturing device. The device is deployed via a previously described platform and is 6 mm in diameter. Desirable qualities of this tissue approximation/closure device include robust tissue grasping, minimal tissue trauma, fully visualized anchor placement via off-axis needle and anchor deployment, full reloadability without instrument withdrawal, single-operator operating capability, torque-stable manipulability, and operator-controlled tension setting of tissue anchor pairs. Method The device was trialed in performing several maneuvers in porcine or canine models. The features of the system allowed bimanual tissue manipulation, full-thickness tissue approximation and plication, and secure closure of an ex vivo gastrotomy hole similar to that used during transluminal surgical interventions. Conclusions This device appears to offer promise in achieving more complex endoluminal and potentially transluminal tasks, including secure suture closure of tissue defects and access holes. As such, devices of this type may prove useful in addressing some of the identified barriers to further development of natural orifice surgical intervention. Further investigation of the qualities and capabilities of this device in these settings is warranted. Electronic Supplementary Material The online version of this article (doi: ) contains supplementary material, which is available to authorized users Drs. Mellinger, MacFadyen, Soper, Birkett, and Swanstrom have a consulting relationship with the manufacturer of the device described in this article Video 1. Retroflexed suturing of cardia, Video 2. Bimanual manipulation using helical device and g-prox, Video 3. Ex vivo closure of gastrotomy site.     

The use of a percutaneous closure device for closure of an accidental puncture of the aortic arch; a simple solution for a difficult problem.

Percutaneous closure devices are now often used for closure of the femoral puncture site after percutaneous vascular interventions. We describe a case were an accidental puncture in the aortic arch during placement of a central venous catheter is successfully closed with a closure device.     

Arterial closure devices. A review

The use of arterial closure devices in achieving haemostasis following arterial puncture has become increasingly popular. This review aims to provide an overview of the currently available closure devices, with an up-to-date summary of the supporting literature. The various devices have their advantages and disadvantages as well as differing mechanisms of actions. Technical aspects of deployment affect the learning curve and ease of use of individual devices. Some complications that arise are device specific where others are related to arterial punctures in general. When choosing a device, all these factors should be taken into account as well as differing clinical requirements and priorities. Most studies of arterial closure devices that are currently in use conclude that the safety profile of closure devices is comparable to manual compression. The literature does not show superiority of any particular device. Caution is advised in extrapolating evidence based on differing patient groups, as many of the study populations are heterogeneous. As physicians become more familiar with the use of closure devices, off-label applications of some devices have emerged, some of which need further evaluation. The ideal closure device should reduce complication rates compared to manual compression, be easy to use with a short learning curve, and have a high rate of deployment success. It should also be usable across a wide range of sheath sizes, not leave any permanent foreign body behind, reduce time to haemostasis and ambulation, allow immediate repuncture, improve patient comfort and be cost effective. In spite of the wide range of devices currently available there remains room for improvement.     

Posterior wall capture and resultant common femoral occlusion complicating StarClose access closure

Vascular closure devices have been shown to decrease hemostasis and ambulation time after percutaneous transcatheter procedures. The StarClose Vascular Closure System (Abbott Vascular, Redwood City, Calif) is a shape memory clip-mediated device that is designed to provide extraluminal mechanical closure without compromising the arterial lumen. We report a case of iatrogenic arterial occlusion secondary to mechanical closure of the anterior and posterior walls of the common femoral artery with a StarClose device. We provide objective observations from the rescue surgical intervention and discuss potential mechanisms of device failure.