Publications by authors named "Schaaf S"

A planned ventral hernia after open abdomen therapy is a rare hernia entity because the fascial closure rate has been increased due to established concepts for open abdominal treatment. Nevertheless, fascial closure is not always successful, and a planned ventral hernia has to be treated later. Preoperative optimisation and planning are essential for such challenging abdominal wall repairs.

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In Germany, blast and gunshot injuries are uncommon but complex injury entities. Due to the global political situation, terrorist attacks, accidents, or acts of violence, these injuries are potentially part of the reality of care for every anaesthetist, surgeon, and emergency physician. In principle, this type of injury should be treated in a trauma centre with appropriate expertise, but the knowledge of basic treatment principles is necessary for all practitioners.

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Article Synopsis
  • This study aimed to assess the effectiveness of virtual monoenergetic images (VMI) from photon-counting detector CT (PCD-CT) in identifying severe lung injuries and atelectasis in patients with multiple traumas.
  • A total of 20 patients were examined using contrast-enhanced PCD-CT, with images created at different energy levels (40 to 120 keV) to analyze the contrast-to-noise ratio between injured and collapsed lung areas.
  • Results showed that lower energy levels (specifically around 40-50 keV) provided the best contrast and clarity for differentiating between severe lung injury and atelectasis, while higher energy levels like 60-70 keV offered better noise perception
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Despite significant progress in the medical field, there is still a pressing need for minimal-invasive tools to assist with decision-making, especially in cases of polytrauma. Our team explored the potential of serum-derived large extracellular vesicles, so called microparticles/microvesicles/ectosomes, to serve as a supportive tool in decision-making in polytrauma situations. We focused on whether monocyte derived large EVs may differentiate between polytrauma patients with internal organ injury (ISS > 15) and those without.

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Background: Botulinum toxin application into the abdominal wall prior to major hernia repair can reduce the complexity of surgery and has been increasingly used in recent years, even if it is an off-label use.

Objective: To what extent is botulinum toxin used in hernia surgery in German-speaking countries and what is the current evidence in the literature?

Material And Methods: In a voluntary online survey of German Society for General and Visceral Surgery (DGAV)-certified competence centers and reference centers for hernia surgery, aspects of botulinum toxin application were surveyed and the results analyzed.

Results: A total of 57 centers took part in the survey, of which 27 (47%) use botulinum toxin.

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Background: Despite major advances in medicine, blood-borne biomarkers are urgently needed to support decision-making, including polytrauma. Here, we assessed serum-derived extracellular vesicles (EVs) as potential markers of decision-making in polytrauma.

Objective: Our Liquid Biopsy in Organ Damage (LiBOD) study aimed to differentiate polytrauma with organ injury from polytrauma without organ injury.

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Context: Pain catastrophizing is characterized by negative emotional and cognitive responses to pain and is a predictor of work-related disability. Its association with military medical disability has not been studied.

Objective: To (1) identify the pain catastrophizing scale (PCS) score cut point most strongly associated with military medical disability, (2) measure the difference in rate of disability between service members with baseline PCS scores above versus below the cut point, and (3) determine if improvement in PCS score during pain specialty care is associated with decreased likelihood of disability.

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Supervision is a dynamic and challenging leadership process that remains an essential element within the field of speech-language pathology. This study examines a facet of the supervisory relationship and investigates whether supervision styles are similarly perceived by the supervisor and supervisee and if a mismatch in perceptions relates to satisfaction between supervisor-supervisee dyads. Data were collected through completion of a demographic questionnaire as well as the Supervisory Style Inventory, which categorizes supervisory style as being attractive, interpersonally sensitive, task-oriented, or mixed.

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With SCAview, we present a prompt and comprehensive tool that enables scientists to browse large datasets of the most common spinocerebellar ataxias intuitively and without technical effort. Basic concept is a visualization of data, with a graphical handling and filtering to select and define subgroups and their comparison. Several plot types to visualize all data points resulting from the selected attributes are provided.

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Certifications are an increasingly used tool of quality management in the health care system. The primary goal is to improve the quality of treatment due to implemented measures based on a defined catalog of criteria and standardization of the treatment processes. However, the extent to which this affects medical and health-economic indicators is unknown.

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Introduction: Incisional hernias following lateral abdominal wall incisions with an incidence of 1-4% are less common than following medial incisions at 14-19%. The proportion of lateral incisional hernias in the total collective of all incisional hernias is around 17%. Compared to midline defects, lateral incisional hernias are more difficult to repair because of the more complex anatomy and localization.

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Musculoskeletal ultrasound has become a fundamental diagnostic and treatment tool in the field of physical medicine and rehabilitation. However, there is no standardized curriculum for teaching and practicing musculoskeletal ultrasound during physical medicine and rehabilitation residency. The objective of this study was to describe a longitudinal curriculum using unembalmed fresh frozen cadavers to teach physical medicine and rehabilitation residents ultrasound-guided procedures.

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Introduction: Traumatic diaphragmatic rupture is a rare injury in the severely injured patient and is most commonly caused by blunt mechanisms. However, penetrating mechanisms can also dominate depending on regional and local factors. Traumatic diaphragmatic rupture is difficult to diagnose and can be missed by primary diagnostic procedures in the resuscitation room.

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Motivation: The importance of clinical data in understanding the pathophysiology of complex disorders has prompted the launch of multiple initiatives designed to generate patient-level data from various modalities. While these studies can reveal important findings relevant to the disease, each study captures different yet complementary aspects and modalities which, when combined, generate a more comprehensive picture of disease etiology. However, achieving this requires a global integration of data across studies, which proves to be challenging given the lack of interoperability of cohort datasets.

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Background: Health care records provide large amounts of data with real-world and longitudinal aspects, which is advantageous for predictive analyses and improvements in personalized medicine. Text-based records are a main source of information in mental health. Therefore, application of text mining to the electronic health records - especially mental state examination - is a key approach for detection of psychiatric disease phenotypes that relate to treatment outcomes.

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Background: Individual-patient data meta-analysis (IPD-MA) is an increasingly popular approach because of its analytical benefits. IPD-MA of observational studies must overcome the problem of confounding, otherwise biased estimates of treatment effect may be obtained. One approach to reducing confounding bias could be the use of propensity score matching (PSM).

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Background: Bedaquiline improves outcomes of patients with rifampicin-resistant and multidrug-resistant (MDR) tuberculosis; however, emerging resistance threatens this success. We did a cross-sectional and longitudinal analysis evaluating the epidemiology, genetic basis, and treatment outcomes associated with bedaquiline resistance, using data from South Africa (2015-19).

Methods: Patients with drug-resistant tuberculosis starting bedaquiline-based treatment had surveillance samples submitted at baseline, month 2, and month 6, along with demographic information.

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There is no conclusive data on postoperative recommendations after abdominal and hernia surgery, and there is significant variation in the literature on that question. Thus, this study evaluates the status quo of recommendations of postoperative activity restriction after abdominal surgery. A national (German) and international survey of general surgeons on postoperative recommendations after abdominal and hernia surgery was pooled and analyzed.

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