Publications by authors named "Stefan John"

In Germany, physicians qualify for emergency medicine by combining a specialty medical training-e.g. internal medicine-with advanced training in emergency medicine according to the statutes of the State Chambers of Physicians largely based upon the Guideline Regulations on Specialty Training of the German Medical Association.

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Background: The broad-spectrum antifungal isavuconazole is administered to treat invasive aspergillosis and mucormycosis.

Objectives: Isavuconazole plasma concentrations in critically ill ICU patients with or without COVID-19 and invasive fungal infection were determined, and factors for sub-therapeutic drug levels (<1 μg/mL) were evaluated.

Patients And Methods: Isavuconazole plasma levels were measured as part of therapeutic drug monitoring (TDM) in ICUs of a tertiary hospital.

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Article Synopsis
  • Extracorporeal Life Support (ECLS) is being used more for treating cardiogenic shock related to heart attacks, but its effect on survival rates is unclear.
  • In a multicenter trial, patients with an acute heart attack and planned revascularization were divided into two groups: one receiving ECLS along with standard treatment and the other receiving standard treatment alone, with death rates tracked after 30 days.
  • Results showed no significant difference in mortality between the two groups, but the ECLS group experienced higher rates of bleeding and vascular complications.
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The timely integration of palliative medicine is an important component in the treatment of various advanced diseases. While a German S-3-guideline on palliative medicine exists for patients with incurable cancer, a recommendation for non-oncological patients and especially for palliative patients being treated in the emergency department or intensive care unit is missing to date. Based on the present consensus paper, the palliative care aspects of the respective medical disciplines are addressed.

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The timely integration of palliative medicine is an important component in the treatment of various advanced diseases. While a German S‑3-guideline on palliative medicine exists for patients with incurable cancer, a recommendation for non-oncological patients and especially for palliative patients presenting in the emergency department or intensive care unit is missing to date. Based on the present consensus paper, the palliative care aspects of the respective medical disciplines are addressed.

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The timely integration of palliative medicine is an important component in the treatment of various advanced diseases. While a German S‑3-guideline on palliative medicine exists for patients with incurable cancer, a recommendation for non-oncological patients and especially for palliative patients presenting in the emergency department or intensive care unit is missing to date. Based on the present consensus paper, the palliative care aspects of the respective medical disciplines are addressed.

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The integration of palliative medicine is an important component in the treatment of various advanced diseases. While a German S3 guideline on palliative medicine exists for patients with incurable cancer, a recommendation for non-oncological patients and especially for palliative patients presenting in the emergency department or intensive care unit is missing to date. Based on the present consensus paper, the palliative care aspects of the respective medical disciplines are addressed.

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Adequate therapy with intravenous fluids is crucial in the initial treatment of critically ill patients. Both hypovolemia and hypervolemia are associated with organ dysfunction and adverse outcomes. A recent international randomized trial investigated a restrictive volume management in comparison with a standard volume regimen.

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Melanocytic neoplasms have been genetically characterized in detail during the last decade. Recurrent exon 3 mutations have been recognized in the distinct group of melanocytic tumors showing deep penetrating nevus-like morphology. In addition, they have been identified in 1-2% of advanced melanoma.

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[Acute Kidney Injury].

Dtsch Med Wochenschr

January 2022

"Acute kidney injury" (AKI) describes any acute deterioration in kidney function but also only injury to the kidneys without a severe loss of function. It is a common and severe complication in patients on the intensive care unit with a significant impact on patient's mortality and morbidity. Since no specific pharmacological therapy exists, the early identification of patients at risk for AKI or with acute kidney damage is most important before renal function further deteriorates.

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Background: Early i.v. fluid administration is a cornerstone in modern therapy of shock, especially in septic shock.

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About 50% of all critically ill patients develop acute kidney injury (AKI) and approximately 15% receive renal replacement therapy (RRT). Although RRT is frequently used in intensive care units in Germany, it is currently unknown which RRT procedures are available, which qualification the involved staff has, which anticoagulation strategies are used and how RRT doses are prescribed. To investigate quality and structural characteristics of the performance of RRT in intensive care units throughout Germany, the German Interdisciplinary Society of Intensivists (Deutsche Interdisziplinäre Vereinigung für Intensiv- und Notfallmedizin [DIVI]) performed an inquiry among their members.

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Background: In acute myocardial infarction complicated by cardiogenic shock the use of mechanical circulatory support devices remains controversial and data from randomized clinical trials are very limited. Extracorporeal life support (ECLS) - venoarterial extracorporeal membrane oxygenation - provides the strongest hemodynamic support in addition to oxygenation. However, despite increasing use it has not yet been properly investigated in randomized trials.

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Renal replacement therapy is after mechanical ventilation one of the most important and frequently used organ replacement therapies in daily routine intensive care practice. In contrast to mechanical ventilation, quality standards for renal replacement therapy are less well known and defined. In this position paper of the German Interdisciplinary Association for Intensive Care and Emergency Medicine, we describe quality standards of renal replacement procedures in order to improve therapy of patients with severe acute kidney injury.

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[Hypernatremia].

Med Klin Intensivmed Notfmed

April 2020

Hypernatremia is a common electrolyte disorder in daily clinical practice. In many cases hypernatremia is caused by a lack of free water or an increased salt load. Out-of-hospital acquired hypernatremia is often caused by an increased loss of water or a decreased water intake.

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Background: Acute kidney injury (AKI) is a common and severe complication in patients in the intensive care unit with a significant impact on patient's mortality and morbidity. Therefore renal protective therapy is very important in these severely ill patients.

Aim: Several renal protective strategies have been postulated during recent decades, which came from pathophysiologic concepts and have been contradicted or changed during the last few years.

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Article Synopsis
  • People in Germany want to change how hospitals are planned and paid for to make healthcare better in the future.
  • Recent changes have been made to emergency services and nursing rules, calling for bigger reforms in hospital care.
  • A group of medical experts suggests five main ideas to improve hospitals, like seeing them as a public service and improving how they are funded and organized.
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Digitization is one of the most important tools for improving the standards of our Intensive Care Units. Patient Data Management Systems (PDMS) increase patient safety and help clinicians to tailor their therapy for the individual critical ill patient. A new approach is the provision of critical care medicine for patients in remote ICUs with a telemedicine intervention.

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Background: Lung-protective strategies are the cornerstone of mechanical ventilation in critically ill patients with both ARDS and other disorders. Extracorporeal CO removal (ECCOR) may enhance lung protection by allowing even further reductions in tidal volumes and is effective in low-flow settings commonly used for renal replacement therapy. In this study, we describe for the first time the effects of a labeled and certified system combining ECCOR and renal replacement therapy on pulmonary stress and strain in hypercapnic patients with renal failure.

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The interactions between heart and kidney are various and of clinical relevance. Worsening of one organ often influences the function of the other. With NYHA and KDIGO we have classification systems for heart and kidney failure and those should be used for cardiorenal systems as well.

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This paper provides an endorsement of the KDIGO guideline on acute kidney injury; more specifically, on the part that concerns renal replacement therapy. New evidence that has emerged since the publication of the KDIGO guideline was taken into account, and the guideline is commented on from a European perspective. Advice is given on when to start and stop renal replacement therapy in acute kidney injury; which modalities should be preferentially be applied, and in which conditions; how to gain access to circulation; how to measure adequacy; and which dose can be recommended.

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