keyword
https://read.qxmd.com/read/38532013/haemodynamics-of-stent-mounted-neural-interfaces-in-tapered-and-deformed-blood-vessels
#1
JOURNAL ARTICLE
Weijie Qi, Andrew Ooi, David B Grayden, Nicholas L Opie, Sam E John
The endovascular neural interface provides an appealing minimally invasive alternative to invasive brain electrodes for recording and stimulation. However, stents placed in blood vessels have long been known to affect blood flow (haemodynamics) and lead to neointimal growth within the blood vessel. Both the stent elements (struts and electrodes) and blood vessel wall geometries can affect the mechanical environment on the blood vessel wall, which could lead to unfavourable vascular remodelling after stent placement...
March 27, 2024: Scientific Reports
https://read.qxmd.com/read/38531094/syringe-assisted-test-aspiration-with-mechanical-aspiration-thrombectomy-results-in-good-safety-and-short-term-outcomes-in-the-treatment-of-patients-with-deep-venous-thrombosis
#2
JOURNAL ARTICLE
Wanglong Li, Yichen Lin, Kunfeng Su, Fanggang Cai, Jinchi Zhang, Xiaoling Lai, Xiaoqi Zheng, Pingfan Guo, Xinhuang Hou, Yiquan Dai
OBJECTIVE: To evaluate the short-term outcomes and safety of syringe-assisted test-aspiration with mechanical aspiration thrombectomy in the treatment of deep venous thrombosis. METHODS: This was a single-center, retrospective study of hospitalized patients with iliofemoral and/or inferior vena caval deep venous thrombosis, excluding those with pulmonary embolism. We collected the following patient data from the electronic medical records: age, sex, provoked/unprovoked deep venous thrombosis, symptom duration, thrombosed segments, and the presence of a tumor, thrombophilia, diabetes, and/or iliac vein compression syndrome...
March 26, 2024: Vascular
https://read.qxmd.com/read/38526116/heterotopic-auxiliary-whole-liver-rat-transplant-model-utilizing-a-hepaticoureterostomy-for-allograft-rejection-studies
#3
JOURNAL ARTICLE
Bret Verhoven, Weifeng Zeng, Peter Chlebeck, Kristina Matkowskyj, Heather Jennings, Samuel Poore, David Al-Adra
Small animal transplant models are indispensable for organ tolerance studies investigating feasible therapeutic interventions in preclinical studies. Rat liver transplantation (LTx) protocols typically use an orthotopic model where the recipients' native liver is removed and replaced with a donor liver. This technically demanding surgical procedure requires advanced micro-surgical skills and is further complicated by lengthy anhepatic and lower body ischemia times. This prompted the development of a less complicated heterotopic method that can be performed faster with no anhepatic or lower body ischemia time, reducing post-surgery stress for the recipient animal...
March 8, 2024: Journal of Visualized Experiments: JoVE
https://read.qxmd.com/read/38525891/the-topos-study
#4
JOURNAL ARTICLE
Tim Sebastian, Stefano Barco, Davide Voci, Michael Lichtenberg, Oliver Schlager, Houman Jalaie, Rick de Graaf, Christian Erbel, Alexander Massmann, Marc Schindewolf, David Spirk
<b/> Background : We aimed to study the long-term safety and efficacy of oblique venous stents for post-thrombotic syndrome (PTS) with iliac vein compression. Patients and methods : In the multinational, prospective, single-arm TOPOS study, PTS patients scheduled for endovascular therapy with the sinus-Obliquus® stent and optional distal extension with the sinus-Venous® or sinus-XL Flex® stent were enrolled at eight European vascular centres between October 2016 and December 2020. The primary outcome was primary stent patency at 24 months, and secondary outcomes included the clinical course of PTS (Villalta score, revised Venous Clinical Severity Score [rVCSS], Visual Analog Scale [VAS] of pain), quality of life changes (Chronic Venous Insufficiency Quality of Life Questionnaire, CIVIQ-20), and device-related complications...
March 25, 2024: VASA. Zeitschrift Für Gefässkrankheiten
https://read.qxmd.com/read/38525002/percutaneous-covered-stenting-in-splenic-vein-for-left-sided-portal-hypertension-caused-by-chronic-splenic-vein-obstruction
#5
Masayoshi Yamamoto, Suguru Hitomi, Takuya Hara, Hiroshi Kondo, Hiroshi Oba
Left-sided portal hypertension (LSPH), an uncommon manifestation of portal hypertension, is characterized by conditions such as isolated gastric varices and splenomegaly, which result from impeded splenic venous drainage in the presence of pancreatic disease. We employed a percutaneous transhepatic technique to achieve regression of isolated gastric varices by implanting a covered stent within a blocked splenic vein and by embolizing the posterior gastric vein and varices using N-butyl-2-cyanoacrylate. We report the successful treatment of stenting for LSPH by the covered stent placement...
March 1, 2024: Interventional radiology
https://read.qxmd.com/read/38521937/hemorrhagic-pericardial-tamponade-in-a-hemodialysis-patient-with-catheter-related-superior-vena-cava-syndrome-a-case-report
#6
JOURNAL ARTICLE
Xiaohong Zhao, Kang Wang
BACKGROUND: Iatrogenic complications of endovascular treatment for central venous stenosis have not yet been reported. Here we present a case of a patient on maintenance hemodialysis who developed catheter-related superior vena cava syndrome and subsequently suffered from hemorrhagic pericardial tamponade after undergoing percutaneous transluminal angioplasty and stenting. CASE PRESENTATION: A 72-year-old male patient presented with uremia, and had been receiving maintenance hemodialysis for the past five years...
March 23, 2024: Journal of Cardiothoracic Surgery
https://read.qxmd.com/read/38521516/complex-aortic-arch-pseudoaneurysm-with-aorto-innominate-vein-fistula-in-a-case-of-traumatic-chest-injury
#7
JOURNAL ARTICLE
Rohit Mehra, Pranati Swain, Rohit Aggarwal, Dhanalakshmi Balasubramaniam
A patient in his late 30s presented with issues of retrosternal chest pain and palpitations. He had sustained a splinter injury to the left hemithorax a year ago for which he had been managed with a tube thoracostomy. During subsequent evaluations, he was found to have atrial fibrillations and a CT angiography revealed an arch of the aorta pseudoaneurysm with a fistulous communication with the innominate vein, which being a rare condition has no established treatment protocols. Endovascular salvage of the condition required an aortic Ishimaru zone 2 deployment of the thoracic endovascular aortic repair stent graft to provide an adequate landing zone...
March 22, 2024: BMJ Case Reports
https://read.qxmd.com/read/38519856/a-hybrid-approach-that-may-facilitate-the-repair-of-traumatic-popliteal-artery-pseudoaneurysms
#8
JOURNAL ARTICLE
Areti Vassiliou, Michail Peroulis, Vassilios Tatsis, Vangelis G Alexiou
PURPOSE: Traumatic popliteal pseudoaneurysms may occur in accidents or as an iatrogenic complication of a total knee arthroplasty. Complications often arise in open repair because of distorted anatomy. Up to 22% of the patients may suffer above-knee amputation. Endovascular treatment has proven to be an effective solution. However, the long-term performance of stents at the hinge point of the popliteal artery is questionable. We present a hybrid technique that was used successfully in 2 cases...
March 22, 2024: Journal of Endovascular Therapy
https://read.qxmd.com/read/38516287/mechanical-thrombectomy-using-double-stent-retriever-technique-for-acute-ischemic-stroke-following-embolism-from-the-pulmonary-vein-stump-after-left-upper-lobectomy-a-case-report
#9
Haruki Hirata, Yuta Kaneshiro, Yumiko Urano, Keiji Murata
Acute ischemic stroke (AIS) following pulmonary lobectomy, which is traditionally attributed to air embolism and atrial fibrillation (AF), may occur after thrombus formation in the pulmonary vein stump (PVS). Herein, we document the mechanical thrombectomy (MT) of a carotid bifurcation occlusion post-left upper lobectomy (LUL) to manage AIS. A 76-year-old male with a history of diabetes, dyslipidemia, and a treated dural arteriovenous fistula at the transverse sigmoid junction, with no history of AF, successfully underwent LUL for a pulmonary tumor...
March 2024: Curēus
https://read.qxmd.com/read/38513797/initial-experience-with-the-ambulatory-management-of-acute-iliofemoral-deep-vein-thrombosis-with-may-thurner-syndrome-with-percutaneous-mechanical-thrombectomy-angioplasty-and-stenting
#10
JOURNAL ARTICLE
Daniel Nguyen, Scott S Berman, Joshua A Balderman, Joseph E Sabat, Bernardo Mendoza, Luis R Leon, John P Pacanowski, Cody Kraemer
OBJECTIVE: Patients undergoing intervention for acute iliofemoral deep vein thrombosis (IFDVT) with May-Thurner syndrome (MTS) typically require inpatient (IP) hospitalization for initial treatment with anticoagulation and management with pharmacomechanical thrombectomy. Direct anticoagulants (DOACs) and percutaneous mechanical thrombectomy (PMT) devices offer the opportunity for outpatient (OP) management. Our approach with these patients is described in this report. METHODS: Patients receiving intervention for acute IFDVT from January 2020 through October 2022 were retrospectively reviewed...
March 19, 2024: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://read.qxmd.com/read/38510097/inferior-vena-cava-reconstruction-to-alleviate-back-pain
#11
Angel Hsu, Michael S Segal, Michael Addis
We present the case of a 38-year-old man with end-stage renal disease receiving hemodialysis via a left femoral loop graft who developed debilitating back pain. During a maintenance fistulogram, we found a completely occluded inferior vena cava and engorged lumbar veins. The patient underwent inferior vena cava reconstruction with stenting, which resulted in complete resolution of the engorged lumbar veins on venography and a significant reduction in his back pain. Engorgement of the lumbar veins can cause significant pain, and treatment of the underlying pathology can alleviate these symptoms...
June 2024: Journal of Vascular Surgery Cases and Innovative Techniques
https://read.qxmd.com/read/38510090/endovascular-mechanical-thrombectomy-of-iliofemoral-venous-stent-occlusion-with-the-novel-revcore-thrombectomy-system-case-reports-and-literature-review
#12
Christopher Montoya, Camilo Polania-Sandoval, Jose I Almeida
Venous in-stent restenosis is not completely understood, and the currently available treatment is usually unsatisfactory. We describe the cases of two patients treated with the RevCore thrombectomy system (Inari Medical), designed for venous in-stent thrombosis. Case 1 involves a 62-year-old woman with post-thrombotic syndrome from iliac vein stent placement 15 years earlier. Case 2 describes a 30-year-old woman with post-thrombotic syndrome from recurrent iliac vein stent occlusion, despite therapeutic anticoagulation...
June 2024: Journal of Vascular Surgery Cases and Innovative Techniques
https://read.qxmd.com/read/38510088/a-direct-aorta-to-segmental-artery-bypass-for-prevention-of-spinal-cord-ischemia-after-endovascular-aortic-repair
#13
JOURNAL ARTICLE
Kevin T Kim, Ting I Wang, R Gregory Conway, Shahab Toursavadkohi, Jacob Cherian
Spinal cord ischemia remains a persistent challenge after endovascular aortic aneurysm repair. We present a novel direct aorta to segmental artery bypass before aneurysm repair in a 64-year-old woman presenting with an enlarging aneurysm following dissection. Through an eighth intercostal incision, a polyester graft was sewn into the aorta using pledgeted sutures. An entry needle was used to directly access the previously treated aortic segment, and the opening was stented and angioplasty was performed to create inflow...
June 2024: Journal of Vascular Surgery Cases and Innovative Techniques
https://read.qxmd.com/read/38510086/extensive-iliofemoral-and-femoropopliteal-venous-thrombosis-in-a-young-patient-with-iliocaval-atresia
#14
Antonio Solano, Alejandro Pizano, Valentin Figueroa, Andrea Klein, Jacqueline Babb, Vivek Prakash, Khalil Chamseddin, Gerardo Gonzalez-Guardiola, Melissa L Kirkwood, Michael C Siah
Inferior vena cava (IVC) atresia is a rare congenital anomaly. Standardized treatment is not well defined due to its uncommon presentation, with this pathology associated with an increased risk of unprovoked lower extremity deep vein thrombosis (DVT). We present a case of a 32-year-old man who was admitted for bilateral lower extremity edema and pain and was found to have bilateral extensive iliofemoral and femoropopliteal DVT, absence of IVC filling, and extensive tortuous collateralization arising from the pelvic veins to the azygos vein...
June 2024: Journal of Vascular Surgery Cases and Innovative Techniques
https://read.qxmd.com/read/38496121/role-of-portosystemic-shunt-and-portal-vein-stent-in-managing-portal-hypertension-due-to-hematological-diseases
#15
JOURNAL ARTICLE
Ji Hoon Kim, Suho Kim, Hee-Chul Nam, Chang Wook Kim, Jae-Sung Yoo, Ji Won Han, Jeong Won Jang, Jong Young Choi, Seung Kew Yoon, Ho-Jong Chun, Sung-Eun Lee, Jung-Suk Oh, Pil Soo Sung
INTRODUCTION: Patients with hematological diseases experience complications related to portal hypertension, including life-threatening complications such as variceal bleeding. METHODS: We analyzed the prognosis of patients with hematological diseases and portal hypertension treated with transjugular intrahepatic portosystemic shunts (TIPS) or portal vein stents. We retrospectively assessed patients with hematological diseases and portal hypertension who had variceal bleeding...
February 2024: Curēus
https://read.qxmd.com/read/38494711/pulmonary-vein-intervention-for-severe-pulmonary-vein-stenosis-after-atrial-fibrillation-ablation%C3%A3-a-retrospective-cohort-study
#16
JOURNAL ARTICLE
Kensuke Yokoi, Tomonori Katsuki, Takanori Yamaguchi, Toyokazu Otsubo, Yoshimitsu Soga, Kenichi Hiroshima, Shinjo Sonoda, Koichi Node
BACKGROUND: Pulmonary vein (PV) stenosis (PVS) is a serious complication of atrial fibrillation (AF) ablation. The objective of this study was to describe interventional treatments for PVS after AF ablation and long-term outcomes in Japanese patients.Methods and Results: This multicenter retrospective observational study enrolled 30 patients (26 [87%] male; median age 55 years) with 56 severe PVS lesions from 43 PV interventional procedures. Twenty-seven (90%) patients had symptomatic PVS and 19 (63%) had a history of a single AF ablation...
March 16, 2024: Circulation Journal: Official Journal of the Japanese Circulation Society
https://read.qxmd.com/read/38493887/outcomes-of-endovascular-and-open-surgical-therapy-for-popliteal-artery-injury
#17
REVIEW
Agastya Vaidya, Natalie Rilo, Samantha Steigerwald, Ravi R Rajani
OBJECTIVES: Popliteal arterial injury carries an appreciable risk of limb loss and, despite advances in stent and stent-graft technology, endovascular therapy for popliteal arterial trauma is infrequently used when compared with traditional open repair. Thus, this study aims to assess outcomes of endovascular management (EM) with open surgery (OS) as a historical reference. METHODS: An electronic search was performed (from January 2010 until June 2023) using multiple databases...
March 15, 2024: Annals of Vascular Surgery
https://read.qxmd.com/read/38487644/hybrid-approach-to-management-for-a-patient-with-culture-negative-infective-endocarditis-with-profunda-femoris-mycotic-pseudoaneurysm-a-case-report-and-review-of-the-literature
#18
Fahad M Alshair, Abdullah H Baghaffar, Mazin A Fatani, Reda A Jamjoom
Mycotic pseudoaneurysms can be a serious and life threatening complication of left sided infective endocarditis. They most commonly affect the major axial vessels. Profunda femoris artery (PFA) aneurysms are rare and present in only 0.5% of all peripheral aneurysms, regardless of the underlying etiology. We present a case of a patient who underwent mitral valve repair for severe mitral regurgitation secondary to culture negative IE which was complicated by multiple mycotic pseudoaneurysm. The PFA pseudoaneurysm which was affected and was complicated with a large hematoma compressing the femoral nerve...
March 2024: Clinical Case Reports
https://read.qxmd.com/read/38479406/explant-of-an-infected-endo-trashed-ivc-filter-in-an-immunosuppressed-patient-with-chronically-occluded-iliocaval-stents
#19
JOURNAL ARTICLE
Alice Alexander, Andrew H Smith, Matthew Krantz, Robert Simon, Francis J Caputo, Jon G Quatromoni
BACKGROUND: In the absence of a contiguous bowel perforation or intraabdominal source, infection of a retained vena cava filter in an occluded IVC has never been described. OBJECTIVE: To describe a case of an infected IVC filter in a chronically occluded iliocaval segment. METHODS: Here we present a case of an immunosuppressed 35-year-old female with chronically occluded iliocaval stents and an extensive staphylococcus hominis infection of a previously endo-trashed Bard Eclipse® filter...
March 13, 2024: Vascular
https://read.qxmd.com/read/38478124/prolonged-warm-ischemia-time-in-the-recipient-is-associated-with-post-transplant-biliary-stricture-following-living-donor-liver-transplantation
#20
JOURNAL ARTICLE
Akimasa Sakamoto, Katsunori Sakamoto, Takahiro Hikida, Chihiro Ito, Miku Iwata, Mikiya Shine, Mio Uraoka, Yusuke Nishi, Tomoyuki Nagaoka, Masahiko Honjo, Kei Tamura, Naotake Funamizu, Kohei Ogawa, Yasutsugu Takada
PURPOSE: Post-transplant biliary stricture (PBS) is a common and important complication following orthotopic liver transplantation (LT). This study clarified the incidence of PBS and identified its risk factors. METHODS: We retrospectively reviewed the medical records of 67 patients who underwent living-donor LT (LDLT) at our institute between June 2010 and July 2022 and analyzed their clinical characteristics, prognosis, and risk factors for PBS. RESULTS: Of the 67 patients, 26 (38...
March 13, 2024: Surgery Today
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