Adaptation of midline and mini-midline catheters for patients with COVID-19

Objective: to analyse the time of permanence andmain causes for removal of midline (20 cm) and mini-midline (10 cm) catheters in hospitalized patients, and to study the differences in patients with COVID-19. Method: a descriptive, cross-sectional, retrospective study conducted with data from clinical records in the Hospital Universitario Vall d´Hebron (Barcelona, Spain). The study includedcatheters insertedby the Infusion andVascular Access Nursing (IVAN) Team in patients hospitalized during 2020. Results: the study included 357 catheters in 305 patients (28.9% with COVID-19). The latter presented a higher rate of obesity (21.6% vs. 9.2%;p= 0.003). The median duration of catheters inserted was 11-12 days, without any difference by type of catheter or having COVID-19 (p= 0.88). The main cause for removal in both groups was the end of the treatment, and it was higher in patients without COVID-19 (65.7% vs. 53.1%;p= 0.031), followedby exitus in patients withCOVID-19 (22.9% vs. 8.9%;p= 0.001), and catheter occlusion in the rest (17.3% vs. 8.33%;p= 0.035). There were n= 4 cases of catheter infection and n= 31 suspected cases, without difference by diagnosis or type of catheter. There was no variation in the cause for removal according to the venous access selected. Conclusions: there are no differences in terms of duration of catheters according to their length, vein of insertion or COVID-19 diagnosis. Ultrasound-guided venipuncture, sterile technique and selection of type of catheter by a member of the IVAN team seem to reduce the complications associated. © 2022 DAE Editorial, Grupo Paradigma. All rights reserved.

Dynamic assessment of interleukin-6 during hemodialysis and mortality in COVID 19

BACKGROUND AND AIMS: The impact of the newly discovered severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing coronavirus disease-19 (COVID-19) in hemodialysis patients remains poorly characterized. Some hemodialysis techniques reduce systemic inflammation but their impact on COVID-19 has not been addressed. The aim of this prospective study was to evaluate factors associated to mortality in COVID-19 hemodialysis patients, including the impact of reducing interleukin-6 using a cytokine adsorbent filter. METHOD: This is a prospective single-center study including 16 hemodialysis patients with COVID-19. All were dialyzed using a polymethyl methacrylate (PMMA) filter. Interleukin-6 levels were obtained before and after the first admission hemodialysis session and at one week. Also we collected serum samples from 8 patients of our unit as controls: 4 in online hemodiafiltration (OLHDF) and 4 in high-flux hemodialysis Baseline comorbidities, laboratory values, chest X-ray and treatments were recorded and compared between survivors and non-survivors. RESULTS: Sixteen patients were included (13 males, mean age 72±15 years). Four patients (25%) died. Factors associated to mortality were dialysis vintage (p=0.01), the presence of infiltrates in chest X-ray (p=0.032), serum C-reactive protein (p=0.05) and lactate dehydrogenase (p=0.02) at one week, the requirement of oxygen therapy (p=0.02) and the use of anticoagulation (p<0.01). At admission, post-dialysis interleukin-6 levels were higher (p<0.01) in non-survivors and these patients differed from survivors in the reduction of interleukin-6 levels during the dialysis session despite using a PMMA filter (survivors vs non survivors (25 [17-53]% vs -3 [-109-12] %, p=0.04). CONCLUSION: In hemodialysis COVID-19 patients, a positive balance of interleukin-6 during the session was associated to higher mortality.

COVID-19 or not COVID-19, that is the question. The role of screening criteria and point-of-care lung ultrasound in the triage decision-making process in an Emergency Department during the phase 2 of the COVID-19 Italian epidemic

In the COVID-19 era the real challenge for the Emergency Departments (ED) is to avoid the spread of the viral infection within the so called "clean area" of the emergency room and the hospital. Different protocols have been proposed and adopted in the EDs to quickly identify suspected COVID-19 patients and to correctly manage these patients, all based on clinical and epidemiological criteria. To the best of our knowledge, our pre-triage decisional making-process first integrates the pre-triage interview with point-of-care Lung Ultrasound (LUS) performed in the triage area. The aim of our study is to assess the sensitivity and specificity of our screening clinical and/or epidemiological criteria, and to investigate the role of LUS in the triage decision-making process during the "phase 2" of the COVID-19 Italian epidemic. Our study confirms the pivotal role of the triage in the decision-making process and the management of the entire ED, and it demonstrates that further studies are necessary to validate the role of LUS as tool to promptly identify COVID-19 patients, if combined with a correct pre-triage interview.