Purpose: To describe the use of a large-bore mechanical aspiration system (FlowTriever Aspiration Catheter) as an off-label intervention for the evacuation of complex intra-abdominal abscesses that were refractory to standard percutaneous drainage techniques.
Methods: Two patients with large, complex intra-abdominal abscesses underwent aspiration using the FlowTriever Aspiration Catheter following failure of conventional catheter drainage. One patient had a walled-off necrotic collection from necrotizing pancreatitis; the other developed a postoperative abscess following appendectomy for perforated appendicitis.
Background: Endovascular stenting is widely accepted as the standard treatment for central venous obstruction syndromes such as superior vena cava (SVC) syndrome due to its demonstrated clinical efficacy and improved patient outcomes. However, its application in axillosubclavian vein thrombosis (ASVT) has been limited due to concerns about stent compression within the thoracic outlet. This report aims to evaluate the feasibility and safety of the off-label use of dedicated venous stents-engineered with enhanced mechanical features-as an alternative endovascular approach for the treatment of ASVT.
View Article and Find Full Text PDFBackground: The Protrieve Sheath (Inari Medical; Irvine, CA) is a thromboembolic protection device for venous thrombectomy. An extended feasibility study was conducted for device use in deep vein thrombectomy and inferior vena cava (IVC) filter removal.
Methods: Twenty-two patients, including 12 (55.
J Am Coll Radiol
September 2025
Purpose: The aim of this study was to assess diversity within integrated interventional radiology (IR) residency programs.
Methods: The annual Association of American Medical Colleges Report on Residents, an observational cross-sectional study, was accessed from 2018 through 2023 to extract demographic information (gender, race, and type of medical school) on the various residency programs, including integrated IR. Demographic data were compared among different specialties using the χ test, with a significance level of P < .
Percutaneous mechanical thrombectomy (PMT) has emerged as a prominent treatment option for venous thromboembolism, offering advantages over catheter-directed thrombolysis and anticoagulation therapy, such as reduced bleeding risk and faster thrombus resolution. PMT devices operate through three main mechanisms: aspiration to directly extract thrombi, mechanical fragmentation to break thrombi into smaller pieces, and rheolytic disruption using high-pressure saline jets to dislodge and remove thrombi. This review summarizes the modern PMT device landscape, technical specifications, and indications while exploring extended and off-label uses and highlighting its expanding clinical applications.
View Article and Find Full Text PDFPurpose: Endovascular recanalization and stent reconstruction constitute an effective and safe treatment option for symptomatic thoracic central venous obstruction (TCVO). Rare life-threatening adverse events are possible during or immediately following the procedure, with the most feared one being hemopericardium with cardiac tamponade. A technique to improve efficiency in detection and treatment of cardiac tamponade is described.
View Article and Find Full Text PDFJ Cardiovasc Transl Res
April 2025
Lymphatic dysfunction contributes to congestion and end-organ damage in heart failure (HF), yet current therapies do not directly target lymphatic congestion. Thoracic duct (TD) drainage offers a novel approach to address this gap. This multicenter feasibility study evaluated the safety and feasibility of minimally invasive TD drainage in patients with HF.
View Article and Find Full Text PDFPurpose: To evaluate access site adverse events following ClotTriever-mediated large-bore mechanical thrombectomy via small upper extremity deep veins (< 6-mm).
Materials And Methods: Twenty patients, including 24 upper extremity venous access sites, underwent ClotTriever-mediated large-bore thrombectomy of the upper extremity and thoracic central veins for symptomatic deep vein obstruction unresponsive to anticoagulation. Patients without follow-up venous duplex examinations (n = 3) were excluded.
Cardiovasc Intervent Radiol
January 2025
Purpose: The Protrieve Sheath (Inari Medical; Irvine, CA) is designed for embolic protection during venous thrombectomy. This report describes experience with its use.
Materials And Methods: Between November 2022 and December 2023 (13 months), seventeen patients, including nine (52.
The management of chylothorax remains challenging given the limited evidence and significant heterogeneity in practice. In addition, there are no practical guidelines on the optimal approach to manage this complex condition. We convened an international group of 27 experts from 20 institutions across five countries and four specialties (pulmonary, interventional radiology, thoracic surgery and nutrition) with experience and expertise in managing adult patients with chylothorax.
View Article and Find Full Text PDFPurpose: To report antegrade transvenous obliteration, with or without concurrent portosystemic shunt creation, for the treatment of hemorrhagic rectal varices.
Materials And Methods: Eight patients, including five (62.5%) females and three (37.
Rationale And Objectives: To evaluate wellness among interventional radiologists using a multidimensional survey.
Materials And Methods: An anonymous 53-item survey, including 36 Perceived Wellness Survey (PWS) prompts, was created in Qualtrics (an online survey tool) to assess wellness among interventional radiology attendings and residents. The survey was open from June to September, 2022, 2 years into the COVID-19 Pandemic.
Cardiovasc Intervent Radiol
February 2024
Acad Radiol
March 2024
Rationale And Objectives: To evaluate moral injury (MI) among interventional radiologists using validated assessment tools.
Materials And Methods: An anonymous 29-question online survey was distributed to interventional radiologists using the Society of Interventional Radiology Connect Open Forum website, Twitter, Facebook, LinkedIn, and electronic mail. The survey consisted of demographic and practice environment questions, a global quality of life (QoL) scale (scored 1-100), the MI Symptom Scale‑Healthcare Professional (MISS-HP) (scored 1-100), and two open-ended questions.
Background: While large-bore mechanical thrombectomy provides effective venous thrombus removal, often with avoidance of thrombolytics, literature surrounding the application of these devices in pediatric patients is sparse.
Objective: To report technical success and outcomes following large-bore thrombectomy systems in adolescent patients with deep venous thrombosis.
Materials And Methods: A retrospective review identified all patients less than 18 years of age undergoing mechanical venous thrombectomy at a single institution between 2018 and 2022.
Objective: In the present report, we have described the technical and clinical outcomes of percutaneous thrombectomy in the deep veins of the upper extremity and thorax using the ClotTriever system (Inari Medical, Irvine, CA).
Methods: Fourteen patients with symptomatic deep venous occlusive disease in the upper extremity deep veins and thoracic central veins who had undergone thrombectomy using the ClotTriever system between October 2020 and January 2022 were reviewed. The technical results, adverse events, imaging follow-up data, and clinical outcomes were recorded.
Purpose: To evaluate the awareness of interventional radiology (IR) among the public and identify methods for improvement.
Materials And Methods: Participants (N = 1,000) were anonymously surveyed using Amazon's Mechanical Turk crowdsourcing platform about medical and IR-specific knowledge, preferred methods of acquisition of medical information, and suggestions for improving awareness of IR. The survey consisted of 69 questions, including both Likert Scale and free text questions.