Long-Term Outcomes of Endovascular Aortic Repair with Parallel Chimney or Periscope Stent Grafts for Ruptured Complex Abdominal Aortic Aneurysms.

: The parallel stent graft endovascular aortic repair (PGEVAR) technique is an off-the-shelf option used for elective complex abdominal aortic aneurysm repair with acceptable outcome results, as reported so far. The PGEVAR technique, using chimney or periscope parallel grafts, can also be used for patients with ruptured complex abdominal aortic aneurysms. However, only few data about the mid- to long-term outcomes are available.

Robotic-assisted Lymphovenous Anastomosis of the Central Lymphatic System.

Background: Recent advances in robotic microsurgery have enabled the application of robotic technology in central lymphatic reconstruction. Although the use of microsurgical robots demands careful consideration of associated costs and potentially prolonged operating times, it may offer improved surgical approaches and enhanced accessibility to deeper anatomical structures such as the thoracic duct (TD).

Methods: We report on successful reconstruction of the central lymphatic system using the Symani Surgical System in four patients with lesions of the central lymphatic system.

Microsurgical central lymphatic reconstruction-the role of thoracic duct lymphovenous anastomoses at different anatomical levels.

Introduction: In recent years advances have been made in the microsurgical treatment of congenital or acquired central lymphatic lesions. While acquired lesions can result from any surgery or trauma of the central lymphatic system, congenital lymphatic lesions can have a variety of manifestations, ranging from singular thoracic duct abnormalities to complex multifocal malformations. Both conditions may cause recurrent chylous effusions and downstream lymphatic congestion depending on the anatomical location of the thoracic duct lesion and are associated with an increased mortality due to the permanent loss of protein and fluid.

First-in-human Use of a Microsurgical Robotic System for Central Lymphatic Reconstruction.

Advances in the development of robotic systems have recently enabled the use of robotic technology in reconstructive lymphatic surgery. Although the advantages of microsurgical robots must be weighed carefully against the costs, their use may allow for smaller surgical approaches and easier access to anatomically deeper structures or even smaller vessels. We report on a case of a patient with central lymphatic dilation causing abdominal pain and severely reduced physical capacity.

Long-term patency of arteriovenous fistulas for hemodialysis: A decade's experience in a transplant unit.

Background: The heterogeneous quality of studies on arteriovenous fistulas outcome, with variable clinical settings and large variations in definitions of patency and failure rates, leads to frequent misinterpretations and overestimation of arteriovenous fistula patency. Hence, this study aimed to provide realistic and clinically relevant long-term arteriovenous fistula outcomes.

Methods: We retrospectively analyzed all autologous arteriovenous fistulas at our center over a 10-year period (2012-2022).

Photon-Counting Detector CT Angiography for Endoleak Detection After Endovascular Aortic Repair: Triphasic CT With True Noncontrast Versus Biphasic CT With Virtual Noniodine Imaging.

Objectives: The aim of this study was to compare image quality and endoleak detection after endovascular abdominal aortic aneurysm repair between a triphasic computed tomography (CT) with true noncontrast (TNC) and a biphasic CT with virtual noniodine (VNI) images on photon-counting detector CT (PCD-CT).

Materials And Methods: Adult patients after endovascular abdominal aortic aneurysm repair who received a triphasic examination (TNC, arterial, venous phase) on a PCD-CT between August 2021 and July 2022 were retrospectively included. Endoleak detection was evaluated by 2 blinded radiologists on 2 different readout sets (triphasic CT with TNC-arterial-venous vs biphasic CT with VNI-arterial-venous).

Atypical patterns of spinal segment degeneration in patients with abdominal aortic aneurysms.

Purpose: Abdominal aortic aneurysms (AAAs) affect the vascular perfusion of the lumbar spine. The treatment of AAAs with endovascular aortic aneurysm repair (EVAR) completely occludes the direct vascular supply to the lumbar spine. We hypothesized that patients with AAA who undergo EVAR show a different pattern of spinal degeneration than individuals without AAA.

Quantitative and qualitative evaluation of liver metastases with intraprocedural cone beam CT prior to transarterial radioembolization as a predictor of treatment response.

Purpose: To investigate, by quantitative and qualitative enhancement measurements, the correlation between tumor enhancement on cone beam computed tomography (CBCT) images and treatment response at 6 months in patients undergoing transarterial radioembolization (TARE) for liver metastases.

Materials And Methods: 36 patients (56% male; median age 62.5 years) with 104 metastases were retrospectively included.

Prediction of treatment response to transarterial radioembolization of liver metastases: Radiomics analysis of pre-treatment cone-beam CT: A proof of concept study.

Purpose: To investigate the potential of texture analysis and machine learning to predict treatment response to transarterial radioembolization (TARE) on pre-interventional cone-beam computed tomography (CBCT) images in patients with liver metastases.

Materials And Methods: In this IRB-approved retrospective single-center study 36 patients with a total of 104 liver metastases (56 % male, mean age 61.1 ± 13 years) underwent CBCT prior to TARE and follow-up imaging 6 months after therapy.

Recanalization of Chronic Noncirrhotic, Nonmalignant Splanchnic Thromboses is Feasible: A Transsplenic Assisted Patient-Tailored Approach.

The purpose of this study was to evaluate the feasibility of recanalization of chronic noncirrhotic, nonmalignant splanchnic thromboses with a transsplenic assisted patient-tailored approach with or without transjugular intrahepatic portosystemic shunt (TIPS) creation. In this retrospective study, 10 patients (median age, 48.4 years; interquartile range, 5.

Fusion of Preinterventional MR Imaging With Liver Perfusion CT After RFA of Hepatocellular Carcinoma: Early Quantitative Prediction of Local Recurrence.

Objectives: The aim of this study was to evaluate the ability of fusion of pretreatment magnetic resonance (MR) imaging with posttreatment perfusion-CT (P-CT) after radiofrequency ablation (RFA) of hepatocellular carcinomas (HCCs) and to determine treatment success in an objective, quantitative way.

Materials And Methods: In this institutional review board-approved study, 39 patients (78.4% male; mean age 68.

Outpatient Yttrium-90 microsphere radioembolization: assessment of radiation safety and quantification of post-treatment adverse events causing hospitalization.

Purpose: Quantification of post-interventional adverse events of outpatient SIRT leading to hospitalization and quantification of radiation exposure.

Materials And Methods: In this single-center, retrospective cohort study, we reviewed 212 patients treated with SIRT (Y-microspheres) for primary and secondary liver malignancies. We searched for adverse events (AEs) and serious adverse events (SAEs), defined as AE's causing hospitalization.

Sclerotherapy With OK-432 for the Treatment of Symptomatic Lymphocele After Lymph Node Dissection: A Retrospective Comparative Cohort Study.

Objective: This study aimed to determine the benefits of sclerotherapy with OK-432 for the treatment of postoperative chronic lymphocele.

Background: Postoperative chronic lymphocele formation is common and accounts for a high postoperative morbidity. Nonsurgical strategies comprise repetitive percutaneous fluid aspiration or percutaneous sclerotherapy.

Lymphovenous Anastomosis for the Treatment of Thoracic Duct Lesion: A Case Report and Systematic Review of Literature.

Background: Chylous leak is an uncommon complication after head and neck surgery and typically results from a lesion of the thoracic duct (TD). Beside conservative treatment, different minimally invasive and surgical procedures exist, of which almost all lead to a total closure of the TD.

Methods: We report on a rare case of microsurgical lymphovenous anastomosis to treat a TD lesion.

Computed Tomography for 4-Dimensional Angiography and Perfusion Imaging of the Prostate for Embolization Planning of Benign Prostatic Hyperplasia.

Objectives: The aim of this study was to evaluate the feasibility of a computed tomography (CT) protocol enabling the visualization of the prostatic artery (PA) before prostatic artery embolization (PAE) in benign prostatic hyperplasia, which provides quantitative perfusion information of the prostate gland.

Materials And Methods: In this institutional review board-approved study, 22 consecutive patients (mean age, 67 ± 7 years) who were planned to undergo PAE underwent a dynamic CT scan of the pelvis (scan range, 22.4 cm; cycle time, 1.

Primary Endovascular Elective Repair and Repair of Ruptured Isolated Iliac Artery Aneurysms Is Durable-Results of 72 Consecutive Patients.

Purpose: To evaluate outcome of endovascular elective repair and repair of ruptured isolated iliac artery aneurysms (IIAAs) as a primary treatment strategy.

Materials And Methods: All patients with an IIAA undergoing endovascular treatment were included. Aneurysms were classified according to an anatomic classification and treated with coiling of the internal iliac artery, stent graft placement in the common to external iliac artery, or placement of a bifurcated aortoiliac stent graft.

Safety of percutaneous axillary artery access with a suture-mediated closing device for parallel endograft aortic procedures - a retrospective pilot study.

Background: The aim of this study was to evaluate the technical success of percutaneous ultrasound-guided access to the infraclavicular axillary artery with a suture-mediated closing device for patients requiring large-sized upper extremity access.

Patients And Methods: In 18 consecutive patients (17 male, one female, mean age 73.5 ± 9.

Prototype metal artefact reduction algorithm in flat panel computed tomography - evaluation in patients undergoing transarterial hepatic radioembolisation.

Objective: To investigate the effect of an on-site prototype metal artefact reduction (MAR) algorithm in cone-beam CT-catheter-arteriography (CBCT-CA) in patients undergoing transarterial radioembolisation (RE) of hepatic masses.

Methods And Materials: Ethical board approved retrospective study of 29 patients (mean 63.7±13.

Ultrasound Needle Visibility in Contrast Mode Imaging: An In Vitro and Ex Vivo Study.

Purpose: To evaluate needle visibility in ultrasound under contrast mode conditions.

Materials And Methods: Needle visibility was evaluated for bevel, EchoTip and shaft of 18G Chiba biopsy needle with a 9 MHz linear probe (GE Logiq E9). Insertion angles varied between 30°(steep) and 90°(parallel to the probe surface).

Mid-term results of zone 0 thoracic endovascular aneurysm repair after ascending aorta wrapping and supra-aortic debranching in high-risk patients.

Objectives: Surgical repair of aneurysmal disease involving the ascending aorta, aortic arch and eventually the descending aorta is generally associated with significant morbidity and mortality. A less invasive approach with the ascending wrapping technique (WT), supra-aortic vessel debranching (SADB) and thoracic endovascular aneurysm repair (TEVAR) in zone 0 was developed to reduce the associated risk in these patients.

Methods: During a 10-year period, consecutive patients treated by the ascending WT, SADB and TEVAR in zone 0 were included.