Effects of remote ischemic preconditioning on early markers of intestinal injury in experimental hemorrhage in rats.

The maintenance of intestinal integrity and barrier function under conditions of restricted oxygen availability is crucial to avoid bacterial translocation and local inflammation. Both lead to secondary diseases after hemorrhagic shock and might increase morbidity and mortality after surviving the initial event. Monitoring of the intestinal integrity especially in the early course of critical illness remains challenging. Since microcirculation and mitochondrial respiration are main components of the terminal stretch of tissue oxygenation, the evaluation of microcirculatory and mitochondrial variables could identify tissues at risk during hypoxic challenges, indicate an increase of intestinal injury, and improve our understanding of regional pathophysiology during acute hemorrhage. Furthermore, improving intestinal microcirculation or mitochondrial respiration, e.g. by remote ischemic preconditioning (RIPC) that was reported to exert a sufficient tissue protection in various tissues and was linked to mediators with vasoactive properties could maintain intestinal integrity. In this study, postcapillary oxygen saturation (µHbO2), microvascular flow index (MFI) and plasmatic D-lactate concentration revealed to be early markers of intestinal injury in a rodent model of experimental hemorrhagic shock. Mitochondrial function was not impaired in this experimental model of acute hemorrhage. Remote ischemic preconditioning (RIPC) failed to improve intestinal microcirculation and intestinal damage during hemorrhagic shock.

[Crisis resilience in medical practices and clinics]. / Krisenresilienz in Praxen und Kliniken.

BACKGROUND: Climate change because of anthropogenic greenhouse gas emissions increasingly triggers extreme weather events. Of all the continents, Europe is warming the fastest. Heat and drought, forest fires and floods will worsen in Europe even in optimistic global warming scenarios, affecting living conditions across the continent. Extreme weather events threaten energy and food security, ecosystems, infrastructure, water resources, financial stability, and people's healthcare. Many of these risks have already reached critical levels and could take on catastrophic proportions without immediate, decisive action. OBJECTIVES: This paper outlines current challenges for medical practices and clinics in the context of climate change and provides examples and guidance for strengthening crisis resilience. MATERIALS AND METHODS: Selective literature review on the different requirements for crisis resilience in practices and clinics was performed. RESULTS: Medical practices and clinics achieve crisis resilience by high degrees of adaptability and flexibility. They prepare for climate change-related challenges and are, therefore, able to protect themselves and maintain their function in the healthcare system. Recent weather events in Germany revealed insufficient resilience among the healthcare sector; hence, improvements are necessary. CONCLUSIONS: Changing environmental conditions urgently require the healthcare sector to adapt and effectively strengthen crisis resilience in order to ensure that critical infrastructure remains functional and the population has access to healthcare.

[Prostate cancer screening-current overview]. / Das Prostatakarzinom-Screening ­ aktueller Überblick.

BACKGROUND: The harm-to-benefit ratio of prostate cancer (PCa) screening remains controversial mainly due to the unfavorable test characteristics of prostate-specific antigen (PSA) as a screening test. METHODS: In this nonsystematic review, we present a current overview of the body of evidence on prostate cancer screening with a focus on the role of magnetic resonance imaging (MRI) of the prostate. RESULTS: Evidence generated in large randomized controlled trials showed that PSA-based screening significantly decreases cancer-specific mortality. The main obstacle in developing and implementing PCa screening strategies is the resulting overdiagnosis and as a consequence overtreatment of indolent cancers. Opportunistic screening is characterized by an adverse benefit-to-harm ratio and should, therefore, not be recommended. The German Statutory Early Detection Program for prostate cancer, which consists of a digital rectal examination (DRE) as a stand-alone screening test, is not evidence-based, neither specific nor sensitive enough and results in unnecessary diagnostics. The European Commission recently urged member states to develop population-based and organized risk-adapted PSA-based screening programs, which are currently tested in the ongoing German PROBASE trial. Finetuning of the diagnostic pathway following PSA-testing seems key to improve its positive and negative predictive value and thereby making PCa screening more accurate. Incorporation of prostatic MRI into screening strategies leads to more accurate diagnosis of clinically significant prostate cancer, while diagnosis of indolent cancers is reduced. In the future, molecular liquid-based biomarkers have the potential to complement or even replace PSA in PCa screening and further personalize screening strategies. Active surveillance as an alternative to immediate radical therapy of demographically increasing PCa diagnoses can potentially further improve the benefit-to-harm ratio of organized screening. CONCLUSION: Early detection of PCa should be organized on a population level into personalized and evidence-based screening strategies. Multiparametric MRI of the prostate may play a key role in this setting.

[Sustainable transformation of practices and outpatient clinics]. / Nachhaltige Transformation von Praxen und Ambulanzen.

BACKGROUND: Climate change as a consequence of anthropogenic greenhouse gas emissions (CO2e) favors weather extremes. This challenges the healthcare system to cope with negative consequences and to remain functional at the same time. Despite rising costs and shortage of staff, sick people in an aging society must be increasingly cared for in a resource-efficient and climate-neutral manner without compromising the quality of care. AIM: This article summarizes current challenges for practices and outpatient clinics due to climate change and societal transformation. In addition, steps to implement transformative interventions are discussed. MATERIALS AND METHODS: Selective literature review in PubMed database was conducted on the impact of climate change on the healthcare system, crisis resilience, climate management, overprescription, and co-benefits. RESULTS: Crisis-resilient practices are attuned to challenges resulting from climate change. Communicating co-benefits in the physician-patient conversation can accelerate the transformation to a sustainable society. CONCLUSION: Rapidly changing environmental conditions require adaptation on the part of the healthcare system. Education and prevention are key to meet this challenge. Transformation to sustainable practices is an ongoing process and it represents a holistic concept that encompasses social, environmental, and economic aspects, which are interdependent and cannot be considered separately.