Hyponatremia in the emergency department: an overview of diagnostic and therapeutic approach.

Introduction: Hyponatremia, defined as a serum sodium concentration <135 mmol/l, is a frequent electrolyte disorder in patients presenting to an emergency department (ED). In this context, appropriate diagnostic and therapeutic management is rarely performed and challenging due to complex pathophysiologic mechanisms and a variety of underlying diseases.

Objective: To implement a feasible pathway of central diagnostic and therapeutic steps in the setting of an ED.

[The abdominal pain unit as a treatment pathway : Structured care of patients with atraumatic abdominal pain in the emergency department].

Background: Patients with atraumatic abdominal pain are common in the emergency department and have a relatively high hospital mortality, with a very wide spectrum of different causes. Rapid, goal-directed diagnosis is essential in this context.

Methods: In a Delphi process with representatives of different disciplines, a diagnostic treatment pathway was designed, which is called the Abdominal Pain Unit (APU).

Point-of-care lung ultrasound in COVID-19 patients: inter- and intra-observer agreement in a prospective observational study.

With an urgent need for bedside imaging of coronavirus disease 2019 (COVID-19), this study's main goal was to assess inter- and intraobserver agreement in lung ultrasound (LUS) of COVID-19 patients. In this single-center study we prospectively acquired and evaluated 100 recorded ten-second cine-loops in confirmed COVID-19 intensive care unit (ICU) patients. All loops were rated by ten observers with different subspeciality backgrounds for four times by each observer (400 loops overall) in a random sequence using a web-based rating tool.

SARS-CoV-2 antigen rapid immunoassay for diagnosis of COVID-19 in the emergency department.

Background: In the emergency department (ED) setting, rapid testing for SARS-CoV-2 is likely associated with advantages to patients and healthcare workers, for example, enabling early but rationale use of limited isolation resources. Most recently, several SARS-CoV-2 rapid point-of-care antigen tests (AGTEST) became available. There is a growing need for data regarding their clinical utility and performance in the diagnosis of SARS-CoV-2 infection in the real life setting EDs.

Combination of bortezomib-based chemotherapy and extracorporeal free light chain removal for treating cast nephropathy in multiple myeloma.

Besides amyloidosis and light chain deposition disease, the most common histological type of renal lesion is cast nephropathy in 30% of patients with multiple myeloma [2]. In contrast to amyloidosis, cast nephropathy is believed to be potentially reversible when circulating light chains are rapidly reduced. We report on three patients with multiple myeloma and cast nephropathy treated with a bortezomib-based chemotherapy in addition to a newly developed high-cutoff polyflux® haemofilter.

Risk stratification for renal transplantation after cardiac or lung transplantation: single-center experience and review of the literature.

Background: Long-term survival after heart (HTx) or lung (LuTx) transplantation increases the risk for end-stage renal disease (ESRD). After HTx ESRD was reported to enhance mortality, and kidney transplantation (KTx) was shown to improve survival. However, prognostic factors in ESRD after HTx or LuTx are largely unknown.

Alterations of the immune response with increasing recipient age are associated with reduced long-term organ graft function of rat kidney allografts.

Background: Clinically, an increasing number of older recipients are listed for transplantation. We examined recipient age-associated alterations of the immune response and their effects on graft function.

Methods: Three- and 18-month-old Lewis (LEW) rats received kidneys from 3- and 18-month-old Fischer 344 (F344) rats (1.

The impact of immune-activating processes following transplantation on chronic allograft nephropathy.

Background: The long-term success of organ transplantation is influenced by numerous alloantigen-dependent and -independent risk factors. However, only very little information is presently available on the influence of systemic immune-activating processes following organ engraftment.

Methods: To simulate the clinical situation of sequential organ transplantation, rat renal allograft recipients received additional immune activating stimuli (secondary donor-specific and third-party skin grafts) after transplantation at serial time intervals (4 and 8 weeks).

Short-term immunosuppressive treatment of the donor ameliorates consequences of ischemia/ reperfusion injury and long-term graft function in renal allografts from older donors.

Background: Grafts from so-called "marginal donors" are increasingly used for organ transplantation. The combination of reduced organ quality and additional inflammatory damages may be particularly detrimental in these grafts. In a previous study, we showed the beneficial effects on long-term graft outcome of "suboptimal" grafts by the induction of heme oxygenase-1.

Inhibition of ischemia/reperfusion injury and chronic graft deterioration by a single-donor treatment with cobalt-protoporphyrin for the induction of heme oxygenase-1.

Today, the major problem in organ transplantation is not acute graft rejection but chronic graft deterioration. In addition to alloantigen-specific events, alloantigen independent factors like donor age, previous diseases, consequences of brain death, and perioperative events of ischemia/reperfusion injury have a major impact on long-term graft function. The induction of the stress protein heme oxygenase-1 (HO-1) protects cells from injury and apoptosis.