The MICHIGAN Procedure: Mass extraCtIon from the Heart FacIlitated by ONOCOR GlobAl embolic protectioN Device.

Intracardiac masses present a challenging diagnostic and therapeutic dilemma and are associated with an increased risk of complications, such as embolic events and obstructive symptoms. We report a novel procedure using an ONOCOR device through subclavian access that acted as a full-body protection device as well as a retrieval device.

Chemotherapy Port Peal Away Sheath Embolisation and Removal With Endovascular Snaring.

Chemotherapy port implantation is a common procedure for long-term intravenous access in cancer patients. While generally safe, complications can occasionally occur. This case report describes a rare complication of chemotherapy port placement, specifically peel away sheath embolisation, and its successful endovascular removal using snaring techniques. The purpose of this report is to highlight this uncommon complication and discuss the management strategy employed in our case.

Nexplanonectomy-the surgical removal of an embolized implanted contraceptive device: a case report and review of the literature.

BACKGROUND: Nexplanon implants are a common hormonal contraceptive modality. Though rare, these devices can embolize into the injured wall of the basilic vein, through the right heart, and finally wedge itself into a pulmonary artery. With adherence to the arterial wall over time, it becomes less amenable to endovascular retrieval. Patients may present with symptoms mimicking a pulmonary embolism, or without any symptoms at all. In asymptomatic cases, endovascular retrieval and/or surgery is required when patients wish to begin having children prior to biological inactivity. The current literature showed as little as nine case reports detailing lung tissue removal in the aim of reversing a patient's implanted contraceptive device. CASE PRESENTATION: A 22-year-old asymptomatic active-duty Caucasian female presented for elective outpatient Nexplanon removal. The suspicion of possible implant migration arose when it was discovered to be non-palpable in her left arm. After plain film x-rays failed to localize the implant, a chest x-ray and follow-up Computed Tomography (CT) scan revealed that the Nexplanon had migrated to a distal branch of the left pulmonary artery. Due to the patient's strong desires to begin having children, the decision was made for removal. Initial endovascular retrieval failed due to Nexplanon encapsulation within the arterial wall. Ultimately, the patient underwent a left video-assisted thoracoscopic surgery (VATS) for exploration and left lower lobe basilar S7-9 segmentectomy, which successfully removed the Nexplanon. CONCLUSIONS: Implanted contraceptive devices can rarely result in migration to the pulmonary vasculature. These radiopaque devices are detectable on imaging studies if patients and clinicians are unable to palpate them. An endovascular approach should be considered first to spare lung tissue and avoid chest-wall incisions, but can be complicated by encapsulation and adherence to adjacent tissue. A VATS procedure with single-lung ventilation via a double-lumen endotracheal tube allows surgeons to safely operate on an immobilized lung while anesthesiologists facilitate single-lung ventilation. This patient's case details the uncommon phenomenon of Nexplanon migration, and the exceedingly rare treatment resolution of lung resection to remove an embolized device.

The Simplified Extraction of Atrial Tumor With Targeted Loop Electricity (SEATTLE) Procedure.

The removal of intramyocardial masses has long been thought of as a surgical procedure and is generally reserved for patients with obstructive symptoms when the mass is thought to be benign. Thus, many patients who are incidentally diagnosed with intracardiac masses are either subjected to protracted follow-up with serial imaging awaiting tumor growth before surgical excision is ultimately offered. We report a novel procedure in which a 54-year-old man with an atrial myxoma underwent successful percutaneous resection using electrosurgery followed by removal with a novel endovascular retrieval system. This approach provides an alternative to either surgical excision or watchful waiting in patients with small- to medium-sized intracardiac tumors. (Level of Difficulty: Advanced.).

Missing Bullets: Bullet Embolization Case Series and Review of the Literature.

PURPOSE: Bullet embolization is a rare but dangerous phenomenon. Based on the location of embolization, migration of bullets can cause limb or intra-abdominal ischemia, pulmonary infarction, cardiac valve injury, or cerebrovascular accident. Bullet emboli can present a diagnostic challenge given the varied nature of complications based on location of embolization, which may not coincide with the site of initial injury. The purpose of this study is to present several cases of bullet embolization from our busy urban trauma center and make recommendations for management. METHODS: We present 3 cases of bullet embolization seen in injured patients at our Level 1 trauma center. We describe our management of these injuries and make recommendations for management in the context of our institutional experience and comment on the available literature regarding bullet embolization. RESULTS: Two of our patients presented in extremis and required operative intervention to achieve stability. The intravascular missile was discovered intraoperatively in one patient and removed in the operating room, while the missile was discovered on postoperative imaging in another patient and again removed operatively after an unsuccessful attempt at minimally invasive retrieval. Our third patient remained hemodynamically stable throughout his hospitalization and had endovascular management of his bullet embolus. CONCLUSION: Bullet emboli present a challenging complication of penetrating trauma. We recommend removal of all arterial bullet emboli and those within the pulmonary venous system. In hemodynamically stable patients, we recommend initial attempts of endovascular retrieval followed by open surgical removal. We recommend open removal in cases of hemodynamic instability.

The traveling pelvic bullet: a case of retrograde ballistic migration through the venous system.

Migration of a ballistic missile through the vasculature is rare but important to recognize. It can lead to diagnostic confusion and seemingly unexplainable bullet trajectories. We have described the case of a young man with a gunshot wound to the axillary vein and initial embolus to the inferior vena cava. The bullet subsequently migrated to the right common iliac vein, allowing for straightforward retrieval.

Safe endovascular retrieval of a vena cava filter after duodenal perforation.

The use of vena cava filters (VCF) is a common procedure utilized in the prevention of pulmonary embolism (PE), yet VCFs have some significant and known complications, such as strut penetration and migration. Deep vein thrombosis (DVT) and PE remain a major cause of morbidity and mortality in the United States. It is estimated that as many as 900,000 individuals are affected by these each year with estimates suggesting that nearly 60,000-100,000 Americans die of DVT/PE each year. Currently, the preferred treatment for DVT/PE is anticoagulation. However, if there are contraindications to anticoagulation, an inferior vena cava (IVC) filter can be placed. These filters have both therapeutic and prophylactic indications. Therapeutic indications (documented thromboembolic disease) include absolute or relative contraindications to anticoagulation, complication of anticoagulation, failure of anticoagulation, propagation/progression of DVT during therapeutic anticoagulation, PE with residual DVT in patients with further risk of PE, free-floating iliofemoral IVC thrombus, and severe cardiopulmonary disease and DVT. There are also prophylactic indications (no current thromboembolic disease) for these filters. These include severe trauma without documented PE or DVT, closed head injury, spinal cord injury, multiple long bone fractures, and patients deemed at high risk of thromboembolic disease (immobilized or intensive care unit). Interruption of the IVC with filters has long been practiced and is a procedure that can be performed on an outpatient basis. There are known complications of filter placement, which include filter migration within the vena cava and into various organs, as well as filter strut fracture. This case describes a 66-year-old woman who was found to have a filter migration and techniques that were utilized to remove this filter.

Radiological correlation of mechanism of intravascular migration of the ventriculoperitoneal shunt and technical considerations for endovascular retrieval.

Migration of ventriculoperitoneal shunt into the pulmonary artery is a rare complication that can lead to shunt malfunction and cardiopulmonary complications. This case illustrates the significance of accidental transvenous placement of the shunt. Identification of the transvenous course of the catheter on cross sectional imaging can predict future catheter migration and also aid at surgical extraction. Formation of knot within the distal portion of the shunt catheter during migration or endovascular retrieval can occur, therefore measures to retrieve with knot and adhesions should be factored in before.

Pulmonary Embolization of Radiolucent Intravenous Cannula: Endovascular Retrieval.

Fracture and embolization of peripheral intravenous cannula is very rare. Although endovascular retrieval is the standard of care for most of the embolized intravascular devices, endovascular management of embolized peripheral intravenous cannula is technically difficult due to its radiolucent nature and it is not described previously in the literature. We describe the clinical presentation, imaging findings, and endovascular management in a middle aged male who had fractured peripheral intravenous cannula which was embolized into the pulmonary artery branch. Technical nuances associated with retrieval of this radiolucent little plastic tube have been discussed.

Complex endovascular retrieval of an intravascular foreign body.

We report a case of a 54-year-old man who developed bilateral multifocal pneumonia as a result of septic thromboembolization from an ingested ballpoint pen that migrated through the gastrointestinal system and lodged in the inferior vena cava. The ballpoint pen was removed from the inferior vena cava with a complex endovascular approach using internal jugular and common femoral vein access with the combination of a snare device and atraumatic laparoscopic grasper. He was also found to have a duodenal perforation requiring primary repair in a staged fashion after endovascular removal of the ballpoint pen.

Endovascular retrieval of a broken distal ventriculoatrial shunt catheter within the heart: illustrative case.

BACKGROUND: Displacement of a distal catheter of a ventriculoatrial (VA) shunt is a rare complication and can lead to a challenging extraction requiring endovascular retrieval of the distal catheter. OBSERVATIONS: The authors describe a patient in whom the distal catheter of the VA shunt had become displaced and traveled through the tricuspid valve into the right ventricular outflow tract. LESSONS: In this case report, the authors present a multidisciplinary approach to retrieving a displaced distal catheter from a VA shunt.

Conservative management of asymptomatic lately embolized amplatzer atrial septal occluder device to the supraceliac abdominal aorta: case report and the literature review.

Atrial septal defects of a single Secundum with favorable anatomy and margins are commonly treated with septal occluder devices. Device embolization is a well-known rare and serious complication of transcatheter structural heart interventions. Percutaneous transcatheter closure under fluoroscopic guidance using the occluder device has been considered as a safe and effective alternative to open surgery with a higher technical success rate. However, and in selected cases it can be managed conservatively. In the current study we reported out local experience in the conservative non-surgical management of a patient presented with asymptomatic lately migrating and embolized amplatzer atrial septal defect occluder device into the supraceliac abdominal aorta. This conservative management was adopted after failure of the multiple trials of the endovascular retrieval of the embolized device. However, the procedure was terminated to keep away from any local vascular complications. The patient was followed up for more three years with serial computed tomography angiography on a scheduled outpatient basis. In the current study, we reported and sharing our local experiences for the non-operative, conservative management of a dislocated and embolized atrial septal defect occluder device to the supraceliac abdominal aorta.

Inferior vena cava filter removal - Hope for the best and prepare for the worst: An anesthesiology perspective.

A patient presented to our institution for an elective removal of an inferior vena cava (IVC) filter under local anesthesia. Once removed, it was noticed that the filter had a missing secondary leg. The patient had a chest CT done which showed a hyper-attenuating structure in the region of the tricuspid valve highly suspicious for the fractured strut of the filter. Upon these findings, the patient was taken once again to the surgical suite for an endovascular retrieval of the strut. For fear of a possible cardiac injury and a potential need for a sternotomy, the patient received general anesthesia and was placed with appropriate IV access and full cardiac monitors. The strut was removed successfully without any complications. Despite the relative benign nature of this endovascular procedure, one should always be prepared for an appropriate resuscitation in case of an occurrence of a surgical complication.

Cerebral Liposarcoma Embolus From Heart Metastasis Successfully Treated by Endovascular Extraction Followed by Cardiac Surgery.

The current case presents a patient with a tumor emboli stroke as a presenting symptom of a liposarcoma metastasis to the heart that was treated successfully with endovascular mechanical retrieval, followed by subsequent cardiac surgery. The patient is still alive, under chemotherapy treatment, 3 years following the interventions. This scenario should be considered as a part of the differential diagnosis of oncology patients presenting with new central neurological symptoms. This active approach can be an effective treatment if the patient is fit and there is no evidence of widespread disease.

Difficult Retrieval of a Broken Catheter From a Total Implantable Venous Access Device.

A broken TIVAD catheter segment was discovered lodged within the right ventricle of a man presenting with chest pain. The catheter removal is detailed.

Endovascular retrieval of a CardioMEMS heart failure system.

As the creation and utilization of new implantable devices increases, so does the need for interventionalists to devise unique retrieval mechanisms. This report describes the first endovascular retrieval of a CardioMEMS heart failure monitoring device. A 20-mm gooseneck snare was utilized in conjunction with a 9-French sheath and Envoy catheter for retrieval. The patient suffered no immediate postprocedural complications but died 5 days after the procedure from multiorgan failure secondary to sepsis.

Endovascular Retrieval of Detached Ventriculoatrial Shunt into Pulmonary Artery in Pediatric Patient: Case Report.

The management of hydrocephalus represents a neurosurgical challenge. Ventriculoperitoneal (VP) shunts are usually the treatment of choice for hydrocephalus. However, when VP shunt is not an option, ventriculoatrial (VA) shunt becomes a second choice. VA shunts have special complications such as postoperative neck hematomas, shunt nephritis, and migration of the distal segment. There are two main techniques for the retrieval of migrated VA shunt: either by retrieval of the broken segment by thoracotomy, which is highly invasive, or by transvenous approach. A 9-year-old boy presented with severe cerebral palsy, who was VP shunt dependent since birth. The patient developed generalized cerebrospinal fluid (CSF) ascites with peritonitis. The shunt was externalized and infection was treated with intravenous antibiotics. Two weeks later, and due to previous multiple abdominal procedures, it was decided to go for VA shunt and the procedure went well without complications. One month later, the patient presented to emergency department with neck swelling; shunt x-ray showed shunt breakage at clavicular level and the tip of the shunt was dislodged into the pulmonary artery. Under general anesthesia and after getting informed consent, through femoral vein, VA shunt was retrieved successfully without complications and new VP shunt was inserted. Migration of the distal segment of a broken atrial catheter is rare, but has a significant complication and is major cause of mortality. Endovascular retrieval of migrated shunts is less invasive, is feasible, and prevents further complications. There has been similar case in the adult English literature; however, to the best of our knowledge, this is the first reported case in the English literature of a successful endovascular retrieval of migrated dislodged VA shunt in pediatrics.

Endovascular Retrieval of Intracaval Cement: A Fishing Net Technique.

PURPOSE: To describe a novel endovascular technique for intracaval cement retrieval after spinal surgery. TECHNIQUE: We produced a replica of the intracaval cement fragment and a 3D print to plan the endovascular procedure. A woven caval filter was modified with two drawstring sutures to be used as fishing net. We used a 10F sheath in the right internal jugular vein to place the caval filter proximal to the floating fragment, and a 24F sheath in the right femoral vein was the working access. After the deployment of the caval filter, the following steps were performed through the 24F sheath: (A) The drawstring sutures were snared and retrieved to the skin surface in the groin; (B) the fragment was secured with two snare catheters from the femoral access and one through the lumen of the caval filter; (C) the fragment was broken off with a snared guide wire at the base; (D) the smallest fragment was removed directly with the snare; (E) the larger dislodged fragment was controlled within the periprocedural caval filter by tightening the drawstring and removed through the 24F sheath. CONCLUSION: Cement fragments located in the inferior vena cava after cement-augmented spinal surgery procedures can be safely removed by the described fishing net technique.