Endovascular management of renal angiomyolipomas: Do coils have a benefit in terms of clinical success rates?

PURPOSEThis study evaluated single center results of endovascular treatment in renal angiomyolipoma (AML) to determine whether there is clinical relevance of adding proximal coil embolization to distal particle embolization in terms of safety, efficacy and retreatment rates.METHODSA retrospective analysis was performed to evaluate patients undergoing transarterial embolization for renal AMLs from January 2007 to October 2020. Parameters regarding patient and tumor characteristics, embolization technique, treatment outcome and complications were recorded. Patients were divided into two groups as A (only particle group) and B (particle + coil group) based on the type of embolic agent used for treatment. Comparative analysis was performed between the two groups in terms of tumor size reduction, retreatment and complication rates.RESULTForty-two patients (37 (88.1%) female, 5 (11.9%) male) harboring 48 AMLs were included in the study. The mean age was 43.46 (range 20 to 78). The technical success rate was 95.8% (46 of 48 procedures). The mean size reduction was 1.94±1 cm (p < 0.001) after treatments however, no significant difference was seen between groups in terms of tumor size reduction. Retreatment rates were 3.1% (1 of 32 cases) in group A and 14.3% (2 of 14 cases) in group B (p = 0.21). No significant difference was found between groups in terms of bleeding and complication rates during the perioperative period. Mean follow-up duration was 26.48±25.71 (range from 2 to 102) months. CONCLUSIONIn this study, no clear supplementary benefit was observed in terms of safety, and efficacy with the adjunction of coils to distal particle embolization in the management of AMLs

Mechanical Complications Related to Central Venous Catheterization Lessons to be Learned From Two Cases

Central venous catheterization (CVC) is an interventional technique which is frequently used in critical patient care for diagnosis and treatment. As in all interventional procedures, CVC may be associated with both short and long-term complications. Here, we report two cases to demonstrate infrequent, but possible causes of mechanical complications related to CVC. The first case was a 24-year-old man with non-Hodgkin lymphoma who initially underwent femoral vein, then internal jugular vein (IJV) catheterization. A forgotten guide wire extending from the left femoral vein to the right IJV was noticed several days after the femoral venous catheterization during an attempt at an IJV catheterization. In the second case, who was a 71-year-old woman requiring CVC for hemodialysis and monitorization, the tip of a left IJV catheter, inserted after several attempts, was found in the right IJV. These cases illustrate the importance of obtaining and appropriately evaluating radiograms after venous catheterization, while bearing the possible mechanical complications in mind

INTERVENTIONAL RADIOLOGY ORIGINAL ARTICLE Peripheral vascular applications of the

To present our experience using the Amplatzer ® vascular plug in various arterial and venous systems, and follow-up results. MATERIALS AND METHOD