Using Non-Contrast MRA to Discriminate between Obstructive and Nonobstructive Venous Diseases of the Legs

Background: Venous interventions of the legs are less predictable owing to a lock of objective tools. Methods: One hundred and twenty patients with lower extremity venous disease were evaluated anatomically using TRANCE MRI. Then, a QFlow analysis was performed in 53 patients with only one leg affected for hemodynamic evaluation. Those patients with complete QFlow were classified into obstructive and nonobstructive. Results: The QFlow—namely, stroke volume, forward flow volume, mean flux, stroke distance (SD), and mean velocity (MV) in the external iliac vein (EIV), femoral vein (FV), popliteal vein (PV), and great saphenous vein (GSV). The obstructed group had a shorter SD and lower MV in the EIV, EIV/FV, and GSV/PV (SD: p-values of 0.025, 0.05, and 0.043, respectively; MV: p-values of 0.02, 0.05, and 0.048, respectively). A good performance in discriminating obstructive venous disease was reported for SD in the EIV (area under the curve (AUC) = 67.9%, 95% confidence interval (CI) = 53.2–82.7%), EIV/FV (AUC = 72.4%, 95% CI = 58.2–86.5%), and GSV/PV (AUC = 67.9%, 95% CI = 51.7–84.1%). The SD in the EIV, EIV/FV, and GSV/PV had the ability to discriminate between obstructive and nonobstructive diseases (p-values of 0.025, 0.005, and 0.043). The MV in the EIV, EIV/FV, and GSV/PV had ability to discriminate between obstructive and nonobstructive venous diseases (p-values of 0.02, 0.005, and 0.048). Conclusions: The SD and MV were lower for obstructive than nonobstructive disease in the EIV.

Short-term compression therapy in chronic vein disease without trophic disorders: possibilities of medical compression knitwear

Introduction. Medical compression stockings are one of the main methods in a conservative strategy for the treatment of chronic vein diseases as well as for adjuvant treatment after superficial venous interventions. however, compliance to this treatment is low.Objective. To evaluate patient satisfaction with medical compression knitwear therapy in a short-term follow-up.Materials and мethods. The study included 150 patients of both sexes aged 42 ± 8.3 years. Endovenous laser obliteration combined with mini-phlebectomy and/or sclerotherapy for varicose veins was performed. All patients after the surgery wore compression stockings of compression class 2 with a recommended wearing period of 14 days. At the control visit at the end of the follow-up period all patients were asked to complete a satisfaction survey with a specially prepared questionnaire including 7 questions.Results and discussion. No significant adverse events and complications related to either the invasive intervention or the compression therapy were observed during the follow-up period. There were no abnormalities such as compression sensations or changes in blood flow under the knitwear. The compression was totally adequate, with no areas of over- and/or under-compression. All respondents felt that the knitwear was well anchored to the leg and no slipping or twisting due to the wide elastic band with droplet silicone. In addition to all of the above, the patients noted that the knitwear offered to them in the study had good tactile properties: it was soft and pleasant to the skin. According to the survey, the average score for all questions was 9.5 (QR 8-10).Conclusion. Elastic compression is an effective and safe means of preventing adverse events, complications and pain in patients after superficial varicose veins surgery. Additional consumer properties of medical compression knitwear can significantly influence patients’ compliance and therefore the effectiveness of treatment.

The Outback Re-Entry Device. A Pictorial Review

The Outback™ Elite re-entry catheter (CORDIS, Cardinal Health, USA) is designed to facilitate placement and positioning of guidewires within the peripheral vasculature and allows for re-entry of a guidewire back into the true lumen of a vessel following a subintimal crossing of an arterial occlusion. The device was first introduced in 2005 and has become widely utilized in a variety of situations involving both arterial and venous interventions. This article aims to share our experiences with the Outback™ device and inform interventionalists of its utility and versatility.

Impact of COVID-19 Pandemic on Interventional Radiology Practice—A Multicenter Observational Study

Background The COVID-19 pandemic has brought unprecedented challenges to health care services including interventional radiology (IR). Treating COVID-19 infected patients became a priority; furthermore, government policies of differing elective procedures and the public’s fear of contacting COVID-19 have impacted IR workload worldwide. The aim of this study was to evaluate the impact of the COVID-19 pandemic on the workflow in six vascular IR centers located across India. Methods The data were collected retrospectively from April 1 to June 30, 2020. All the six centers were staffed by the alumni of a single parent center located in India. Data was also collected from the same time period in 2019 for comparison. Results A total of 893 patients were treated from April 1 to June 30, 2019, and 419 were treated during the same period in 2020 during the pandemic, a 53% case volume reduction (95% CI:28. 56–129.44; p < 0.001). The month of April had the largest case volume reduction (66%, 95% CI: 13.57–50.43; p < 0.001). Elective procedures showed an 85% reduction (95% CI: 9.62–91.71; p < 0.001). Venous interventions showed the highest reduction of 76% (95% CI: 0.75–67.75; p < 0.001). Neurological emergencies, dialysis-related interventions, and nonvascular procedures did not show a significant change. No patient tested positive for COVID-19 prior to the procedure; however, one patient who was treated emergently was found to be positive later. Conclusion COVID-19 pandemic has severely impacted IR practice across India. Workload reduction was more profound at the beginning of the COVID-19 pandemic with a gradual improvement over time.