TY - THES A1 - Petri, Nils T1 - Verbessert Virtual-Reality-Simulationstraining die Fertigkeiten interventioneller Kardiologen? Eine stratifiziert randomisierte Studie T1 - Does Simulation-Based Training Improve Procedural Skills of Beginners in Interventional Cardiology? - A Stratified Randomized Study N2 - Im Rahmen dieser Studie sollte der Effekt von Virtual-Reality (VR)-Simulation auf die Untersuchungs¬qualität angehender interventioneller Kardiologen untersucht werden. Hierzu wurden 18 Studienteilnehmer rekrutiert, die mindestens 50 diagnostische Herzkatheteruntersuchungen, aber noch keine Intervention eigenständig durchgeführt hatten. Die Hälfte der Teilnehmer erhielt ein 7 ½ stündiges Training an drei VR-Simulatoren: Cath Lab VR (CAE), VIST-C (Mentice) und AngioMentor Express (Simbionix) (Gruppe S). Die andere Hälfte diente als Kontrollgruppe (Gruppe K) und erhielt lediglich eine theo-retische Wissensvermittlung. Die Evaluation der Probanden fand an einem pulsatilen Herzmodell im Katheterlabor statt (CoroSim™, Mecora). Das Modell weist eine hohe Konstruktvalidität auf, was im Rahmen dieser Studie dokumentiert werden konnte. Jeder Teilnehmer musste initial (Prä) und abschließend (Post) eine Intervention an die-sem Modell durchführen, wobei die Komplexität der zu behandelnden Koronarstenose von Prä zu Post anstieg. Jede Prozedur wurde auf Video aufgezeichnet und von 3 er-fahrenen interventionellen Kardiologen verblindet ausgewertet. Um die Leistung der Teilnehmer zu beurteilen, wurde ein Skills Score ermittelt, der 14 Einzelparameter umfasste (s. Tabelle, 5er Likert-Skala, Maximalpunktzahl 70). Zudem wurden die Kon-trastmittelmenge, die benötigte Zeit für die Intervention, die Durchleuchtungszeit und das Flächendosisprodukt gemessen. Zur Bestimmung der Konstruktvalidität nahmen 5 Experten an der Postevaluation teil. Bei vergleichbaren Ausgangswerten im Skills Score (S: 47,2±8,5 K: 50,3±4,5) verbesser-te sich die Simulationsgruppe um 5,8 Punkte auf 53,0±5,6, während sich die Kontroll-gruppe um 6,7 Punkte verschlechterte (K: 43,6±7,0). Dieser Unterschied zeigte sich statistisch signifikant (p=0,003) ANCOVA, abhängige Variable = Veränderung von Prä-zu Postevaluation; Gruppe als Faktor, Ausgangswerte als Kovariate. Schlussfolgerung: VR-Simulationstraining verbessert die kathetertechnischen Fertigkeiten angehender interventioneller Kardiologen. N2 - Objective: To assess whether mentored simulation-based-trai¬ning can improve the procedural skills of beginners in coronary interventional procedures a stratified randomized study was performed. Background: Simulation based-catheter training is a valuable tool to practice interventional procedures. Whether this type of training enhances the procedural skills of fellows learning percutaneous coronary interventions (PCI) has never been studied. Methods: 18 cardiology fellows were randomized either in¬to the simulation-based training (n=9) or the control group (n=9). The simulation group received 7.5 hours of VR simulation training, whereas the control group attended 4.5 hours of lectures. Each participant had to perform a simple (pre-evaluation) and a more complex (post-evaluation) catheter intervention on a pulsatile coronary flow model in a catheterization laboratory. All procedures were videotaped, analyzed and rated by three expert interventiona¬lists, who were blinded to the randomization. To assess the individual performance level, a skills-score was determined. This skills score consists of 14 performance characteristics (five-level Likert scale, maximum score of 70 points). Results: The skills score increased by 5.8±6.1 points in the simulation group and decreased by 6.7±8.4 in the control group (p=0.003) from the simple pre- to the more complex lesion at post-evaluation demonstrating the effectiveness of simulation-based training. KW - Simulation KW - Training KW - Herzkatheter KW - Virtual-reality KW - Simulationstraining KW - Koronarintervention Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-115285 ER - TY - JOUR A1 - Petri, Nils A1 - Lengenfelder, Björn A1 - Voelker, Wolfram A1 - Nordbeck, Peter T1 - Interventional closure of aortomitral perforation after TAVR: A case report JF - Catheterization and Cardiovascular Interventions N2 - Despite TAVR emerging as the gold standard for a broad spectrum of patients, it is associated with serious complications. In this report we present a case, where a TAVR procedure led to a perforation at the aortomitral continuity, discuss the risk factors for the occurrence of perforations and how we decided to treat the patient. KW - medicine KW - closure AV fistula/AVM (CLAV) KW - transcatheter valveimplantation (TVI) KW - percutaneous valve therapy (PVT) KW - aortic valve disease percutaneous intervention (AVDP) KW - imaging TTE/TEE (ITTE) Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-256625 VL - 98 IS - 3 ER - TY - JOUR A1 - Reusch, Julia A1 - Wagenhäuser, Isabell A1 - Gabel, Alexander A1 - Eggestein, Annika A1 - Höhn, Anna A1 - Lâm, Thiên-Trí A1 - Frey, Anna A1 - Schubert-Unkmeir, Alexandra A1 - Dölken, Lars A1 - Frantz, Stefan A1 - Kurzai, Oliver A1 - Vogel, Ulrich A1 - Krone, Manuel A1 - Petri, Nils T1 - Influencing factors of anti-SARS-CoV-2-spike-IgG antibody titers in healthcare workers: A cross-section study JF - Journal of Medical Virology N2 - Against the background of the current COVID-19 infection dynamics with its rapid spread of SARS-CoV-2 variants of concern (VOC), the immunity and the vaccine prevention of healthcare workers (HCWs) against SARS-CoV-2 continues to be of high importance. This observational cross-section study assesses factors influencing the level of anti-SARS-CoV-2-spike IgG after SARS-CoV-2 infection or vaccination. One thousand seven hundred and fifty HCWs were recruited meeting the following inclusion criteria: age ≥18 years, PCR-confirmed SARS-CoV-2 infection convalescence and/or at least one dose of COVID-19 vaccination. anti-SARS-CoV-2-spike IgG titers were determined by SERION ELISA agile SARS-CoV-2 IgG. Mean anti-SARS-CoV-2-spike IgG levels increased significantly by number of COVID-19 vaccinations (92.2 BAU/ml for single, 140.9 BAU/ml for twice and 1144.3 BAU/ml for threefold vaccination). Hybrid COVID-19 immunized respondents (after infection and vaccination) had significantly higher antibody titers compared with convalescent only HCWs. Anti-SARS-CoV-2-spike IgG titers declined significantly with time after the second vaccination. Smoking and high age were associated with lower titers. Both recovered and vaccinated HCWs presented a predominantly good humoral immune response. Smoking and higher age limited the humoral SARS-CoV-2 immunity, adding to the risk of severe infections within this already health impaired collective. KW - anti‐SARS‐CoV‐2‐spike IgG KW - seroprevalence KW - SARS‐CoV‐2 infection KW - healthcare workers KW - COVID‐19 vaccination Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-318659 VL - 95 IS - 1 ER -