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עמוד בית
Wed, 13.11.24

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November 2024
Yana Kakzanov MD, Yamama Alsana, Tal Brosh-Nissimov MD, Emanuel Harari MD, Michael Rahkovich MD, Yonatan Kogan MD, Emma Shvets RN MA, Gergana Marincheva MD, Lubov Vasilenko MD, Avishag Laish-Farkash MD PhD

Background: Cardiac implantable electronic devices (CIEDs) are associated with risks of device-related infections (DRI) impacting major adverse outcomes. Staphylococcus aureus (SA) is a leading cause of early pocket infection and bacteremia. While studies in other surgical contexts have suggested that nasal mupirocin treatment and chlorhexidine skin washing may reduce colonization and infection risk, limited data exist for CIED interventions.

Objectives: To assess the impact of SA decolonization on DRI rates.

Methods: We conducted a retrospective, single-center observational study on consecutive patients undergoing CIED interventions (March 2020–March 2022). All patients received pre-procedure antibiotics and chlorhexidine skin washing. Starting in March 2021, additional pre-treatment with mupirocin for SA decolonization was administered. DRI rates within 6 months post-implantation were compared between patients treated according to guidelines (Group 1) and those receiving mupirocin in addition to the recommended guidelines (Group 2).

Results: The study comprised 276 patients (age 77 ± 10 years; 60% male). DRI occurred in five patients (1.8%);80% underwent cardiac resynchronization therapy procedures. In Group 1 (n=177), four patients (2.2%) experienced DRI 11–48 days post-procedure; three with pocket infection (two with negative cultures and one with local Pseudomonas) and one with methicillin-sensitive SA endocarditis necessitating device extraction. In Group 2 (n=99), only one patient (1%) had DRI (Strep. dysgalactiae endocarditis) 135 days post-procedure (P = NS).

Conclusions: The routine decolonization of SA with mupirocin, in addition to guideline-directed protocols, did not significantly affect DRI rates. Larger prospective studies are needed to evaluate the preventive role of routine SA decolonization in CIED procedures.

May 2022
Nomy Levin-Iaina MD, Avital Angel-Korman MD, Adi Leiba MD MHA, Esther Peres MD, Gabriel Bryk PhD, Vladimir Rapoport MD, Zeev Katzir MD, Yoram Yagil MD, and Tal Brosh-Nissimov MD MHA

Background: The reduced immune response of maintenance hemodialysis patients to coronavirus disease 2019 (COVID-19) vaccines is a major concern.

Objectives: To analyze the late (6 months after full vaccination) antibody response and compare it to early post-vaccination titer.

Methods: We conducted a multicenter prospective study of 13 hemodialysis units in Israel.

Results: We demonstrated that the low titers observed among ESRD patients 2–3 months after vaccination with the Comirnaty vaccine (median 63.8 AU/ml) declined to critically lower values 6 months after full vaccination. (Mediananti S antibodies, 31 AU/ml). Seropositivity significantly declined among hemodialysis patients from 89% to 74% (P < 0.0001), although it did not significantly change among controls.

Conclusions: We recommend all patients on hemodialysis receive a booster COVID-19 vaccine 6 months after the second dose.

 

November 2008
G. Markel, A. Krivoy, E. Rotman, O. Schein, S. Shrot, T. Brosh-Nissimov, T. Dushnitsky, A. Eisenkraft
The relative accessibility to various chemical agents, including chemical warfare agents and toxic industrial compounds, places a toxicological mass casualty event, including chemical terrorism, among the major threats to homeland security. TMCE[1] represents a medical and logistic challenge with potential hazardous exposure of first-response teams. In addition, TMCE poses substantial psychological and economical impact. We have created a simple response algorithm that provides practical guidelines for participating forces in TMCE. Emphasis is placed on the role of first responders, highlighting the importance of early recognition of the event as a TMCE, informing the command and control centers, and application of appropriate self-protection. The medical identification of the toxidrome is of utmost importance as it may dictate radically different approaches and life-saving modalities. Our proposed emergency management of TMCE values the “Scoop & Run” approach orchestrated by an organized evacuation plan rather than on-site decontamination. Finally, continuous preparedness of health systems – exemplified by periodic CBRN (Chemical, Biological, Radio-Nuclear) medical training of both first responders and hospital staff, mandatory placement of antidotal auto-injectors in all ambulances and CBRN[2] emergency kits in the emergency departments – would considerably improve the emergency medical response to TMCE.

 


[1] TMCE = toxicological mass casualty event

[2] CBRN = chemical, biological, radio-nuclear 
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