Twenty-four of twenty-eight patients with erythema nodosum and sixteen of seventeen patients with nodular vasculitis responded to treatment with potassium iodide. Relief of symptoms occurred within 2 days. The average duration of treatment was 3 weeks and the lesions took an average of 2 weeks to resolve. The possible mode of action of potassium iodide is discussed and an immunosuppressive effect mediated by heparin is suggested.

Treatment of erythema nodosum and nodular vasculitis with potassium iodide.

British Journal of Dermatology

Diabetic kidney disease is highly prevalent in patients with type 2 diabetes and is a major cause of end-stage renal disease in Switzerland. Patients with diabetic kidney disease are among the most complex patients in diabetes care. They require a multifactorial and multidisciplinary approach with the goal to slow the decline in glomerular filtration rate (GFR) and cardiovascular morbidity. With this consensus we propose an evidence-based guidance to health care providers involved in the care of type 2 diabetic patients with diabetic kidney disease.First, there is a need to increase physician awareness and improve screening for diabetic kidney disease as early intervention may improve clinical outcomes and the financial burden. Evaluation of estimated GFR (eGFR) and spot urine albumin/creatinine ratio is recommended at least annually. Once it is diagnosed, glucose control and optimisation of blood pressure control with renin-angiotensin system blockers have been recommended as mainstay management of diabetic kidney disease for more than 20 years. Recent, high quality randomised controlled trials have shown that sodium-glucose cotransporter-2 (SGLT2) inhibition slows eGFR decline and cardiovascular events beyond glucose control. Likewise, mineralocorticoid receptor antagonism with finerenone has cardiorenal protective effects in diabetic kidney disease. Glucagon-like peptide-1 (GLP1) receptor agonists improve weight loss if needed, and decrease albuminuria and cardiovascular morbidity. Lipid control is also important to decrease cardiovascular events. All these therapies are included in the treatment algorithms proposed in this consensus. With advancing kidney failure, other challenges may rise, such as hyperkalaemia, anaemia and metabolic acidosis, as well as chronic kidney disease-mineral and bone disorder. These different topics and treatment strategies are discussed in this consensus. Finally, an update on diabetes management in renal replacement therapy such as haemodialysis, peritoneal dialysis and renal transplantation is provided. With the recent developments of efficient therapies for diabetic kidney disease, it has become evident that a consensus document is necessary. We are optimistic that it will significantly contribute to a high-quality care for patients with diabetic kidney disease in Switzerland in the future.

Diabetic kidney disease in type 2 diabetes: a consensus statement from the Swiss Societies of Diabetes and Nephrology.

Swiss Medical Weekly

As a systemic autoimmune disease, rheumatoid arthritis (RA) usually causes damage not only to joints, but also to other tissues and organs including the heart, kidneys, lungs, digestive system, eyes, skin, and nervous system. Excessive complications are closely related to the prognosis of RA patients and even lead to increased mortality. This article summarizes the serious complications of RA, focusing on its incidence, pathogenesis, clinical features, and treatment methods, aiming to provide a reference for clinicians to better manage the complications of RA.

Systemic complications of rheumatoid arthritis: Focus on pathogenesis and treatment.

Frontiers in Immunology

Migraine affects about 1 billion people worldwide, and up to 15% of adults in the United States have migraine attacks in any given year. Migraine is associated with substantial adverse socioeconomic and personal effects. It is the second leading cause of years lived with disability worldwide for all ages and the leading cause in women aged 15 to 49 years. Diagnostic uncertainty increases the likelihood of unnecessary investigations and suboptimal management. This article advises clinicians about diagnosing migraine, ruling out secondary headache disorders, developing acute and preventive treatment plans, and deciding when to refer the patient to a specialist.

Migraine.

Annals of Internal Medicine

Long COVID is an often debilitating illness that occurs in at least 10% of severe acute respiratory syndrome coronavirus&#xa0;2 (SARS-CoV-2) infections. More than 200 symptoms have been identified with impacts on multiple organ systems. At least 65 million individuals worldwide are estimated to have long COVID, with cases increasing daily. Biomedical research has made substantial progress in identifying various pathophysiological changes and risk factors and in characterizing the illness; further, similarities with other viral-onset illnesses such as myalgic encephalomyelitis/chronic fatigue syndrome and postural orthostatic tachycardia syndrome have laid the groundwork for research in the field. In this Review, we explore the current literature and highlight key findings, the overlap with other conditions, the variable onset of symptoms, long COVID in children and the impact of vaccinations. Although these key findings are critical to understanding long COVID, current diagnostic and treatment options are insufficient, and clinical trials must be prioritized that address leading hypotheses. Additionally, to strengthen long COVID research, future studies must account for biases and SARS-CoV-2 testing issues, build on viral-onset research, be inclusive of marginalized populations and meaningfully engage patients throughout the research process.

Long COVID: major findings, mechanisms and recommendations.

Nature Reviews. Microbiology

The association of chronic heart failure (CHF) and iron deficiency (ID) with or without anemia is frequently encountered in current medical practice and has a negative prognostic impact, worsening patients' exercise capacity and increasing hospitalization costs. Moreover, anemia is common in patients with chronic kidney disease (CKD) and CHF, an association known as cardio-renal anemia syndrome (CRAS) possessing a significantly increased risk of death.

This review aims to provide an illustrative survey on the impact of ID in CHF patients-based on physiopathological traits, clinical features, and the correlation between functional and absolute ID with CHF-and the benefit of iron supplementation in CHF.

We selected the most recent publications with important scientific content covering the association of CHF and ID with or without anemia.

An intricate physiopathological interplay is described in these patients-decrease in erythropoietin levels, activation of the renin-angiotensin-aldosterone system, systemic inflammation, and increases in hepcidin levels. These mechanisms amplify anemia, CHF, and CKD severity and worsen patients' outcomes.

Anemia is frequently encountered in CHF and represents a negative prognostic factor. Data from randomized controlled trials have underlined the administration of intravenous iron therapy (ferric carboxymaltose) as the only viable treatment option, with beneficial effects on quality of life and exercise capacity in patients with ID and systolic heart failure.

Role of Iron Deficiency in Heart Failure-Clinical and Treatment Approach: An Overview.

Diagnostics

Hyponatremia is commonly encountered in the setting of heart failure, especially in decompensated, fluid-overloaded patients. The pathophysiology of hyponatremia in patients with heart failure is complex, including numerous mechanisms: increased activity of the sympathetic nervous system and the renin-angiotensin-aldosterone system, high levels of arginine vasopressin and diuretic use. Symptoms are usually mild but hyponatremic encephalopathy can occur if there is an acute decrease in serum sodium levels. It is crucial to differentiate between dilutional hyponatremia, where free water excretion should be promoted, and depletional hyponatremia, where administration of saline is needed. An inappropriate correction of hyponatremia may lead to osmotic demyelination syndrome which can cause severe neurological symptoms. Treatment options for hyponatremia in heart failure, such as water restriction or the use of hypertonic saline with loop diuretics, have limited efficacy. The aim of this review is to summarize the principal mechanisms involved in the occurrence of hyponatremia, to present the main guidelines for the treatment of hyponatremia, and to collect and analyze data from studies which target new treatment options, such as vaptans.

Management of Hyponatremia in Heart Failure: Practical Considerations.

Journal of Personalized Medicine

The wide overlap between the syndromes of chronic kidney disease and chronic heart failure means that familiarity with the 2021 European Society of Cardiology guidelines is of importance to nephrologists. The common risk factors for the two syndromes together with the adverse cardiac structural remodelling associated with chronic kidney disease means that many kidney disease patients are breathlessness and fall within the heart failure phenotypes categorised in the guidelines. The management of heart failure is evolving rapidly leading to significant changes in the latest guideline iteration. The 2021 guideline has changed from the 2016 version firstly by an increased focus on identifying the three phenotypes of heart failure to guide appropriate evidence based management. Secondly a new and simplified treatment algorithm for heart failure with reduced ejection fraction involving the rapid sequential initiation and up-titration of 4 'pillars' of drug treatment-ACE inhibitors or angiotensin-neprilysin inhibitors, beta blockers, mineralocorticoid receptor antagonists and now, thanks to convincing trial data, sodium-glucose co-transporter-2 inhibitors. Thirdly, guidelines for device therapy have been changed with down-graded advice on indications for primary prevention implantable cardioverter defibrillator therapy for patients with non-ischaemic heart failure and for cardiac resynchronisation therapy with left bundle branch block and a QRS duration&#xa0;&lt;&#xa0;150&#xa0;ms. There are updated treatment plans for heart failure associated with non-cardiovascular co-morbidities including chronic kidney disease.

Management of heart failure in patients with kidney disease - updates from the 2021 ESC guidelines.

Nephrology, Dialysis, Transplantation

The most recent International League Against Epilepsy (ILAE) classification has included "immune etiology" along with other well-known causes of epilepsy. This was possible thanks to the progress in detection of pathogenic neural antibodies (Abs) in a subset of patients, and resulted in an increased interest in identifying potentially treatable causes of otherwise refractory seizures. Most autoimmune encephalitides (AE) present with seizures, but only a minority of cases evolve to long-term epilepsy. The risk of epilepsy is higher for patients harboring Abs targeting intracellular antigens (T cell-mediated and mostly paraneoplastic, such as Hu, CV2/CRMP5, Ma2, GAD65 Abs), compared with patients with neuronal surface Abs (antibody-mediated and less frequently paraneoplastic, such as NMDAR, GABAbR, LGI1, CASPR2 Abs). To consider these aspects, conceptual definitions for two entities were provided: acute symptomatic seizures secondary to AE, and autoimmune-associated epilepsy, which reflect the different pathophysiology and prognoses. Through this manuscript, we provide an up-to-date review on the current state of knowledge concerning diagnosis and management of patients with Ab-mediated encephalitis and associated epilepsy. Special emphasis is placed on clinical aspects, such as brain magnetic resonance imaging (MRI) and cerebrospinal fluid (CSF) specificities, electroencephalographic (EEG) findings, cancer screening and suggestions for a rational therapeutic approach.

Treatment of erythema nodosum and nodular vasculitis with potassium iodide.

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Treatment of erythema nodosum and nodular vasculitis with potassium iodide.

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