Seven Johannes Sam Aghdassi

Seven Johannes Sam Aghdassi
Charité Universitätsmedizin Berlin | Charité · Institute of Hygiene and Environmental Medicine

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33
Publications
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186
Citations

Publications

Publications (33)
Article
Full-text available
Structured summary Background As most automated surveillance (AS) methods to detect healthcare-associated infections (HAIs) have been developed and implemented in research settings, information about the feasibility of large-scale implementation is scarce. Aim We aimed to describe key aspects of the design of AS systems and implementation in Euro...
Article
Full-text available
Background Early detection of clusters of pathogens is crucial for infection prevention and control (IPC) in hospitals. Conventional manual cluster detection is usually restricted to certain areas of the hospital and multidrug resistant organisms. Automation can increase the comprehensiveness of cluster surveillance without depleting human resource...
Article
Structured summary Background The risk for surgical site infections (SSIs) is influenced by patient- and procedure-related factors. Urgent surgery represents a challenge in operative medicine and is frequently linked to a variety of complications, including SSIs. Aim We aimed to investigate whether urgency was significantly associated with SSI oc...
Article
Full-text available
Background Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) represents an unprecedented healthcare challenge. Various SARS-CoV-2 outbreaks in healthcare facilities have been reported. Healthcare workers (HCWs) may play a critical role in the spread of the virus, particularly when asymptomati...
Article
Objective: Surgical site infections (SSIs) occur more frequently during periods of warmer temperatures. We aimed to investigate for which pathogens this association is particularly strong. Design: A retrospective observational study was conducted. Methods: Data from the SSI-module of the German nosocomial infection surveillance system between...
Article
Background: Various studies have linked periods of warmer temperatures to an increased occurrence of surgical site infections (SSIs) and healthcare-associated infections in general. In an observational study, we sought to determine the pathogens for which this association was especially strong. Method: Patient- and procedure-related data of the SSI...
Article
Full-text available
Background: Interventions to improve hand hygiene (HH) compliance are a key element in the practice infection prevention and control. It was our objective to assess the effect of a multimodal intervention on HH compliance at a tertiary care university hospital. As a secondary objective, we investigated the effect of the intervention on the occurre...
Article
Full-text available
Background: Infection prevention and control (IPC) is crucial for patient safety. The World Health Organization (WHO) has released various tools to promote IPC. In 2018, the WHO released the Infection Prevention and Control Assessment Framework (IPCAF) that enables acute care healthcare facilities to evaluate IPC structures and practices. Data reg...
Article
Full-text available
Despite limited indications, redundant anaerobic antimicrobial prescriptions (RAAPs) are frequent. The objective of this study was to assess the prevalence and characteristics of RAAPs in German acute care hospitals. In a retrospective data analysis, antimicrobial prescriptions from a point prevalence survey on antimicrobial use in German acute car...
Article
Full-text available
Introduction Outbreaks of communicable diseases in hospitals need to be quickly detected in order to enable immediate control. The increasing digitalization of hospital data processing offers potential solutions for automated outbreak detection systems (AODS). Our goal was to assess a newly developed AODS. Methods Our AODS was based on the diagnos...
Article
Background: Monitoring and evaluation are an essential part of infection prevention and control (IPC) implementation. We developed an IPC assessment framework (IPACF) to support the World Health Organization (WHO) Guidelines on IPC Core Components implementation in acute health care facilities. Aim: We aimed to evaluate the usability and reliabi...
Article
Background: Due to their frequent use, peripheral venous catheters (PVCs) are relevant regarding catheter-related infections and their prevention. In 2017, revised national guidelines for the prevention of PVC-related infections were published in Germany. Aim: Our objective was to describe the practices of PVC handling and assess the implementat...
Article
Background Robust data on the quality of antimicrobial prescriptions in German acute care hospitals are scarce. To establish and implement antimicrobial stewardship (AMS) measures and to increase prudent antimicrobial use (AMU), the identification of appropriate process and quality indicators is pertinent.AimOur main objective was to identify param...
Article
Full-text available
Background: Linezolid belongs to a reserve group of antibiotics. In recent years, reports on linezolid resistance in gram-positive cocci have become more frequent. Overuse of linezolid is a relevant factor for resistance development. The objective of this study was to describe current prescription practices of linezolid in German hospitals and ide...
Article
Background: Surgical site infections (SSI) are among the most common healthcare- associated infections. The aim of our explorative study was to determine how selected climatic factors are associated with SSI rates. Methods: SSI rates were calculated for operative procedures included in the surgi- cal site infection surveillance component (OP-KIS...
Article
Full-text available
Background: Surgical site infections (SSI) are among the most frequently occurring healthcare-associated infections worldwide. Various analyses to determine risk factors have been conducted in the past, generally attributing a higher SSI-risk to male patients. However, when focusing on specific procedures, this is not always true. Our objective wa...
Article
Full-text available
Background Healthcare-associated infections (HAI) pose a burden on healthcare providers worldwide. To prevent HAI and strengthen infection prevention and control (IPC) structures, the WHO has developed a variety of tools and guidelines. Recently, the WHO released the Infection Prevention and Control Assessment Framework (IPCAF), a questionnaire-lik...
Article
Objectives: Methicillin resistant Staphylococcus aureus (MRSA) remains an important cause of healthcare-associated infections. Here, we describe the development of methicillin-resistant isolates among nosocomial Staphylococcus aureus (SA) infections in Germany between 2007 and 2016. Methods: We analyzed data from the voluntary German national no...
Article
Full-text available
Background Bloodstream infections (BSI) are among the most frequently documented healthcare-associated infections (HAI). Central and peripheral venous catheters (CVC and PVC) are relevant risk factors for BSI. Although the risk for BSI is higher for CVC, PVC are utilized more frequently and are therefore relevant in the context of HAI prevention. R...
Article
Objectives: Previous point prevalence surveys (PPSs) revealed the potential for improving antimicrobial usage (AU) in German acute care hospitals. Data from the 2016 German national PPS on healthcare-associated infections and AU were used to evaluate efforts in antimicrobial stewardship (AMS). Methods: A national PPS in Germany was organized by...
Article
Background: In 2011 and again in 2016, the European Centre for Disease Prevention and Control (ECDC) asked all European countries to carry out nationwide studies on the prevalence of nosocomial infection (NI) and antibiotic use (AU). Data on NI and AU constitute an essential basis for the development of measures to prevent infection and lessen ant...
Article
Introduction: Surgical site infections (SSI) are one of the most frequent healthcare-associated infections worldwide, representing a substantial burden on the healthcare system and the individual patient. Various risk factors for SSI have been identified, which can be separated into patient-related, procedure-related and other risk factors. Areas c...
Article
Full-text available
In patients with localized high-risk prostate cancer awaiting radiation therapy, pelvic lymphadenectomy (PL) is a reliable minimally invasive staging procedure. We compared outcomes after laparoendoscopic single site PL (LESSPL) with those after conventional multiport laparoscopic PL (MLPL). A retrospective case-control study was carried out at the...
Article
Full-text available
Background: This study aimed to compare laparoendoscopic single-site varicocelectomy (LESSV) with multiport laparoscopic varicocelectomy (MLV) in terms of intraoperative parameters and postoperative outcomes. Methods: A retrospective case-control study investigated 10 male adolescents and 89 adults who underwent either LESSV or MLV at the author...

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Projects

Projects (2)
Project
Research and publish experiences from daily infection control in hospitals.
Project
Assess the prevalence of healthcare-associated infections and antimicrobial use German acute care hospitals by participating in the European point prevalence survey of healthcare-associated infections and antimicrobial use (ECDC)