Publications by authors named "Wietasch G"

Background: The transition to residency (TTR) goes along with new opportunities for learning and development, which can also be challenging, despite the availability of preparation courses designed to ease the transition process. Although the TTR highly depends on the organization, individual combined with organizational strategies that advance adaptation are rarely investigated. This study explores residents' strategies and experiences with organizational strategies to help them adapt to residency.

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Objective: Nurses' and doctors' health at work is crucial for their overall performance and the quality of care they provide. The Jobs Demands Resources (JD-R) model offers a framework for health at work, encompassing 'job demands', 'job resources', 'personal resources', 'leadership', 'well-being' and 'outcomes'. While various instruments exist to measure health, an overview of instruments specifically designed for assessing nurses and doctors health is currently missing.

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Shared decision making (SDM) is a core ideal in the interaction between healthcare providers and patients, but the implementation of the SDM ideal in clinical routines has been a relatively slow process. In a sociological study, 71 interactions between physicians and simulated patients enacting chronic heart failure were video-recorded in China, Germany, the Netherlands, and Turkey as part of a quasi-experimental research design. Participating physicians varied in specialty and level of experience.

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Introduction: To facilitate various transitions of medical residents, healthcare team members and departments may employ various organizational socialization strategies, including formal and informal onboarding methods. However, residents' preferences for these organizational socialization strategies to ease their transition can vary. This study identifies patterns (viewpoints) in these preferences.

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Background: Well-being at work can be defined as "creating an environment to promote a state of contentment which allows an employee to flourish and achieve their full potential for the benefit of themselves and their organisation." In the health care context, well-being at work of nurses and doctors is important for good patient care. Moreover, it is strongly associated with individual- and organization-level consequences.

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Background: Digitalization in the health system is a topic that is rapidly gaining popularity, and not only because of the current pandemic. As in many areas of daily life, digitalization is becoming increasingly important in the medical field amid the exponential rise in the use of computers and smartphones. This opens up new possibilities for optimizing patient education in the context of anesthesia.

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The biomedical approach to medical knowledge is widely accepted around the world. This article considers whether the incorporated aspects of physician-patient interaction have become similarly common across the globe by comparing the gestures that physicians use in their interactions with patients. Up to this point, there has been little research on physicians' use of gestures in health-care settings.

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Background: Many residents experience their transitions, such as from medical student to resident, as demanding and stressful. The challenges they face are twofold: coping with changes in tasks or responsibilities and performing (new) social roles. This process of 'learning the ropes' is known as Organizational Socialization (OS).

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Article Synopsis
  • A study was conducted to evaluate the effectiveness of two α-adrenergic receptor blockers, phenoxybenzamine and doxazosin, in preventing hemodynamic instability during surgery for pheochromocytoma or sympathetic paraganglioma.
  • The results showed no significant difference in the time patients spent outside the target blood pressure range when treated with either medication, but phenoxybenzamine was linked to better management of intraoperative hemodynamic stability.
  • Overall, both drugs were safe with no mortality reported, and the complication rates were similar, highlighting the importance of individualized patient care in surgical settings.
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Background: There is no consensus on how to define haemodynamic instability during general anaesthesia. Patients are often classified as stable or unstable based solely on blood pressure thresholds, disregarding the degree of instability. Vasoactive agents and volume therapy can directly influence classification but are usually not considered.

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Background: The development of sepsis risk prediction models and treatment guidelines has largely been based on patients presenting in the emergency department (ED) with severe sepsis or septic shock. Therefore, in this study we investigated which patient characteristics might identify patients with an adverse outcome in a heterogeneous group of patients presenting with uncomplicated sepsis to the emergency department (ED).

Findings: We performed a retrospective cohort analysis of all ED patients presenting with uncomplicated sepsis in a large teaching hospital during a 3-month period.

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Shock is defined as global tissue hypoxia secondary to an imbalance between systemic oxygen delivery and oxygen demand. Venous oxygen saturations represent this relationship between oxygen delivery and oxygen demand and can therefore be used as an additional parameter to detect an impaired cardiorespiratory reserve. Before appropriate use of venous oxygen saturations, however, one should be aware of the physiology.

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Objectives: Insulin administration lowers plasma potassium concentration by augmenting intracellular uptake of potassium. The effect of insulin administration on renal potassium excretion is unclear. Some studies suggest that insulin has an antikaliuretic effect although plasma potassium levels were poorly controlled.

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Introduction: Torsades de pointes is a rare but potentially lethal arrhythmia. The amount of literature available on Torsades de pointes occurring in patients with pheochromocytoma is limited, and we found no literature describing this dysrhythmia in a patient with pheochromocytoma under anesthesia.

Case Presentation: We describe the case of a 42-year-old Caucasian woman without QT prolongation preoperatively with recurrent Torsades de pointes during laparoscopic removal of a pheochromocytoma.

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Introduction: Indocyanine green (ICG) elimination tests have been repeatedly suggested as an early predictor of graft function in patients with liver transplantation. Conventionally, ICG clearance (ClICG) is measured by a series of blood samples with subsequent laboratory analysis. More recently bedside techniques have become available to measure ICG concentrations in vivo and in addition to ClICG, the plasma disappearance rate of ICG (PDRICG) is increasingly being used.

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Background And Objective: Induction of general anaesthesia in combination with positive-pressure ventilation is often associated with a significant decrease of arterial pressure. A decreased preload may contribute to this phenomenon. The aim was to investigate whether a change in cardiac filling occurs following the induction of general anaesthesia with sufentanil under typical clinical conditions.

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Background: Cardiac surgery with cardiopulmonary bypass is often associated with postoperative hemodynamic instability. In this regard beneficial effects of corticosteroids are known. The purpose of this study was to investigate whether these effects are due mainly to a modification of the intravascular and extravascular volume status or whether a more direct improvement of cardiovascular performance by corticosteroids is the underlying mechanism.

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Background And Objective: The recently developed transcerebral double-indicator dilution technique has proven to be a feasible monitoring alternative to measure global cerebral blood flow at the bedside. However, the short-term repeatability of transcerebral double-indicator dilution measurements has not yet been investigated. The present study was designed to investigate the accuracy in terms of reliability for repeated transcerebral double-indicator dilution measurements to assess global cerebral blood flow during a definite carbon dioxide challenge in a clinical trial.

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Objective: Using indocyanine green (ICG), blood volume can be determined within minutes according to the mass conservation principle by back-extrapolation of the concentration/time curve to the time of injection (BVTinj) or by the transit time approach (BVMTT) as the product of cardiac output and mean transit time (MTT) of ICG through the circulation. To see which factor accounts for the difference between the two methods we measured cardiac output and MTT independently and compared the volumes with those obtained by dilution of Evans blue (BVEB).

Design: Prospective animal study.

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Background: Harmonic power Doppler imaging (H-PDI) has been introduced into the field of contrast echocardiography as a contrast-specific imaging modality. However, there has been considerable skepticism as to whether H-PDI would be quantifiable, because it depends on the destruction of microbubbles and has more complex signal processing than gray scale imaging. The aim of the present study was to evaluate the relationship between the concentration of microbubbles and the resulting H-PDI signals even under conditions where bubble destruction is most likely.

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Objective: To test the practicability of a new double indicator dilution method for bedside monitoring of cerebral blood flow (CBF) and to assess the clinical value of CBF monitoring as a prognostic tool for outcome and in therapy of elevated intracranial pressure (ICP) in patients with acute hemispheric stroke.

Design: Prospective study. Clinical evaluation of a new method.

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Background: Currently, quantitative measurement of global cerebral blood flow (CBF) at bedside is not widely performed. The aim of the present study was to evaluate a newly developed method for bedside measurement of CBF based on thermodilution in a clinical setting.

Methods: The investigation was performed in 14 anesthetized patients before coronary bypass surgery.

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