Dominik Hinzmann

Dr. Dominik Hinzmann

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
24 August 2023 in Anesthesiology
Verified
Journal Article
Closed access
PDF file
SDSrdjan Dragovic
Srdjan Dragovic
GSGerhard Schneider
Gerhard Schneider
PGPaul S. García
Paul S. García
DHDominik Hinzmann
Dominik Hinzmann
JSJamie Sleigh
Jamie Sleigh
MKMatthias Kreuzer
Matthias Kreuzer
Background: Processed electroencephalography (EEG) is used to monitor the level of anesthesia, and it has shown the potential to predict the occurrence of delirium. While emergence trajectories of relative EEG band power identified post hoc show promising results in predicting a risk for a delirium, they are not easily transferable into an online predictive application. This article describes a low-resource and easily applicable method to differentiate between patients at high risk and low risk for delirium, with patients at low risk expected to show decreasing EEG power during emergence. Methods: This study includes data from 169 patients (median age, 61 yr [49, 73]) who underwent surgery with general anesthesia maintained with propofol, sevoflurane, or desflurane. The data were derived from a previously published study. The investigators chose a single frontal channel, calculated the total and spectral band power from the EEG and calculated a linear regression model to observe the parameters’ change during anesthesia emergence, described as slope. The slope of total power and single band power was correlated with the occurrence of delirium. Results: Of 169 patients, 32 (19%) showed delirium. Patients whose total EEG power diminished the most during emergence were less likely to screen positive for delirium in the postanesthesia care unit. A positive slope in total power and band power evaluated by using a regression model was associated with a higher risk ratio (total, 2.83 [95% CI, 1.46 to 5.51]; alpha/beta band, 7.79 [95% CI, 2.24 to 27.09]) for delirium. Furthermore, a negative slope in multiple bands during emergence was specific for patients without delirium and allowed definition of a test for patients at low risk. Conclusions: This study developed an easily applicable exploratory method to analyze a single frontal EEG channel and to identify patterns specific for patients at low risk for delirium. Editor’s Perspective: What We Already Know about This Topic: What This Article Tells Us That Is New:

DHDominik Hinzmann
Dominik Hinzmann
KSKatharina Schütte-Nütgen
Katharina Schütte-Nütgen
Arndt BüssingArndt Büssing
Arndt Büssing
OBOlaf Boenisch
Olaf Boenisch
HBHans-Jörg Busch
Hans-Jörg Busch
Eckhard FrickEckhard Frick
Eckhard Frick
Background: Critical Care Providers (CCPs) experience situations that challenge their ethics and professional standards and may entail moral distress (MD). Aim: To analyze MD perceived by CCPs in intensive care units (ICUs) or emergency departments (EDs) and further clarify whether CCPs who rely on spiritual resources differ in their perception of MD from those who do not utilize these resources. Methods: A cross-sectional anonymous survey was administered using a modified version of the German language version of the Moral Distress Scale (MDS) with 2 × 12 items to assess the frequency and the respective perceived burden of specific situations by applying a 5-point Likert scale. Explorative factor analysis was performed and the sub-constructs of the respective items regarding MD frequency and burden were identified. Job burden and professional satisfaction were measured using visual analogue scales (VAS) and a four-point Likert scale, respectively. The 15-item SpREUK questionnaire was applied to measure spiritual attitudes and behaviours and to differentiate between religious and spiritual persons. Data from 385 German-speaking CCPs were included (55% physicians, 45% nurses). Results: Conflict situations are similar for physicians and nurses although they are perceived as more burdensome by nurses. Among physicians, the MDS factor Looking away/Resignation scores highest for assistant physician residents, whereas distress caused by looking away is more often perceived by specialist physicians without a managerial position. Work satisfaction is inversely associated with MD and emotional exhaustion is positively associated with it. Participants’ spirituality is marginally associated with MD. The best predictors of both MD frequency and burden are emotional exhaustion with further influences of work satisfaction, being a nurse, and being a non-believer on the frequency of MD perception. Being a nurse, participants’ experience in ICU/ED, and being of the male gender are further predictors of MD burden. Conclusions: MD is experienced differently by different groups of CCPs depending on their place in the hierarchy of responsibility. As MD perception is best predicted by emotional exhaustion, these situations should be avoided. Although some CCPs may rely on spiritual resources, all need individual and team support to cope with MD.

DHDominik Hinzmann
Dominik Hinzmann
MKMarion Koll-Krüsmann
Marion Koll-Krüsmann
AFAndrea Forster
Andrea Forster
ASAndreas Schießl
Andreas Schießl
AIAndreas Igl
Andreas Igl
SHSusanne Katharina Heininger
Susanne Katharina Heininger
Background: In view of the increasing strain on health workers, psychosocial support measures are becoming more important. The core of a sustainable concept is the establishment of peer support teams. Two aspects are central: first, target group-specific training content, and second, suitable staff members who are trained as peers. The goal of the study was to obtain a first look at what content can be taught in peer training for medical staff, how the training is evaluated by the target group, and which people are interested in training from peers. Methods: During the period 2017–2022, Peer Training for medical staff was developed by a non-profit institution in Germany with state funding and the support of a medical professional association and evaluated during the project. Participants (N = 190) in the Peer Training course were interviewed in advance about their experiences and stresses at work using an anonymous questionnaire. After completing the training modules, the participants filled out an evaluation form. Results: The participants of the Peer Training were predominantly female (70.5%) and middle-aged (between 31 and 50 years old). Most (80.3%) experienced stressful events themselves, mostly without any preparation (93.5%) or follow-up (86.8%) by the employer. The participants estimate their workload in the medium range. The proportion of stressed individuals among the participants was below that of various comparison groups as available reference values. The training module itself was evaluated very positively. Conclusions: The content and framework parameters of the training were rated very well. There is a high degree of fit with the requirements in the health sector. The participants in the Peer Training seem to represent a good cross-section of the target group medical staff, also regarding their own experiences, seem to have a good psychological constitution and are therefore very suitable to work as peers after the training.

DHDominik Hinzmann
Dominik Hinzmann
AFAndrea Forster
Andrea Forster
MKMarion Koll-Krüsmann
Marion Koll-Krüsmann
ASAndreas Schießl
Andreas Schießl
FSFrederick Schneider
Frederick Schneider
SHSusanne Katharina Heininger
Susanne Katharina Heininger
Background: A telephone support hotline (PSU-HELPLINE) was established at the beginning of the pandemic due to the burden on health professionals and the lack of support at the workplace. The aim of this study was to evaluate the telephone support service for health professionals in terms of its burden, benefits, and mechanisms of action. Methods: Data collection was conducted during and after calls by PSU-HELPLINE counsellors. In addition to the socio-demographic data evaluation, burdens of the callers and the benefits of the calls were collected. The content-analytical evaluation of the stresses as well as the effect factors were based on Mayring’s (2022). Results: Most of the callers were highly to very highly stressed. The usefulness of the conversation was rated as strong to very strong by both callers and counsellors. The PSU-HELPLINE was used primarily for processing serious events and in phases of overload. The support work was carried out through the following aspects of so-called effect factors, among others: psychoeducation, change of perspective, resource activation, problem actualization, connectedness, information, problem solving, self-efficacy, and preservation of resources. Conclusions: The expansion of local peer support structures and the possibility of a telephone helpline are recommended. Further research is needed.

19 September 2022 in Interventional Neuroradiology
Verified
Journal Article
Open access
DHDominik Hinzmann
Dominik Hinzmann
MSMaximilian Singer
Maximilian Singer
VSValerie Schmelter
Valerie Schmelter
KKKornelia Kreiser
Kornelia Kreiser
KGKim Gehling
Kim Gehling
FSFrederick Schneider
Frederick Schneider
Background: Likewise work experience, heart rate variability (HRV) has repeatedly been correlated with improved performance under real life and simulator conditions. Using HRV as a correlate of workload, it is meaningful to assess the impact of work experience. To understand the impact of work experience on HRV metrics, we examined differences in HRV among experts and beginners during simulated endovascular neuroradiological procedures. Methods: Six inexperienced radiologists (beginners) and five experts in neurological endovascular intervention each performed 10 diagnostic angiographies on a Vascular Interventional System Trainer (VIST) simulator (Mentice AB, SW). Beyond total time, fluoroscopy time, and amount of contrast medium used, heart rate variability and the NASA-task load index were gathered as correlates of workload. The t-Test for independent samples as well as Mann-Whitney-U tests were applied for group-wise comparison between beginners and experts. Multivariate regression was used to assess the influence of age and expert status. Results: Ten participants completed all scenarios; one participant only completed the first five scenarios. Accordingly, 105 simulations were analyzed (beginners N = 60; experts N = 45, respectively). The heart rate variability of experts and beginners significantly differed in three time domain HRV metrics (decreased RMSSD, NN50, pNN50 in experts; all p < 0.05) as well as with respect to its distribution in the frequency spectrum (LF/HF ratio; p < 0.001, increased high frequency components in experts). Conclusions: The HRV of beginners and expert neurointerventionalists significantly differed during simulated endovascular neuroradiological procedures. Experts presented decreased HRV, this could be a cardiovascular surrogate to the effort the subjects expend on their performance. It is in line with previous studies on vagal influences on the heart and cognitive-executive performance.

1 January 2025 in Journal of Healthcare Leadership
Verified
Journal Article
Open access
PDF file
Reinhard StrametzReinhard Strametz
Reinhard Strametz
HRHannah Roesner
Hannah Roesner
TNThomas Neusius
Thomas Neusius
IWIsabell Wiesenhuetter
Isabell Wiesenhuetter
SBStefan Bushuven
Stefan Bushuven
SHSusanne Katharina Heininger
Susanne Katharina Heininger
Purpose: The objective of this study is to evaluate whether the nationwide establishment and institutionalization of a peer-support program, is economically justified given the potential positive effects on the Second Victim Phenomenon (SVP) among healthcare professionals in Germany. Methods: A comprehensive methodological approach was employed, using data from the SeViD studies to assess the prevalence and duration of SVP among physicians and nurses in Germany. Economic impact assessments were conducted to estimate the potential cost savings associated with implementing a peer-support program. Results: The economic analysis reveals significant annual costs associated with SVP-induced absenteeism: approximately 1.56 billion euros for physicians and 1.87 billion euros for nurses. Implementing comprehensive peer-support programs could reduce these costs to approximately 0.85 billion (physicians) and 1.02 billion euros (nurses), respectively, demonstrating substantial potential economic benefits. Conclusion: Investing in a structured peer-support program could yield annual savings exceeding 1.55 billion euros while enhancing workforce resilience and improving patient care. This underscores the economic rationale for scaling up peer support initiatives in healthcare settings.