Headache is one of the most common conditions presenting to the neurology clinic, yet a significant proportion of these patients are unsatisfied by their clinic experience. Headache can be extremely disabling; effective treatment is not only essential for patients but is rewarding for the physician. In this first of two parts review of headache, we provide an overview of headache management, emerging therapeutic strategies and an accessible interpretation of clinical guidelines to assist the busy neurologist.

Headache management: pharmacological approaches.

Practical Neurology

Hematological emergencies are critical medical conditions that require immediate attention due to their rapid progression and life-threatening nature. As various examples, hypercalcemia, often associated with cancers such as multiple myeloma, can lead to severe neurological and cardiac dysfunction. Hyperleukocytosis, common in acute myeloid leukemias, increases the risk of leukostasis and multiorgan failure. Sickle cell crisis, a common complication in sickle cell disease, results from vaso-occlusion, leading to acute pain and tissue ischemia. Tumor lysis syndrome, reported in cases of rapid destruction of cancer cells, causes electrolyte imbalances and acute kidney injury. Acute transfusion reactions, fundamental in hematological conditions, can range from mild allergic responses to severe hemolysis and shock, requiring prompt management. Disseminated intravascular coagulation, involving excessive coagulation and bleeding, is commonly triggered by hematological malignancies, common in the first phases of acute promyelocytic leukemia. Recently, in the era of bispecific antibodies and chimeric antigen receptor T cells, cytokine release syndrome is a manifestation that must be recognized and promptly treated. Understanding the pathophysiology, recognizing the clinical manifestations, and ensuring adequate diagnostic strategies and management approaches for each condition are central to early intervention in improving patient outcomes and reducing mortality.

Emergencies in Hematology: Why, When and How I Treat?

Journal of Clinical Medicine

Normal-anion-gap metabolic acidosis (NAGMA) is a common but often under-recognised and poorly understood condition, especially by less-experienced clinicians. In adults, NAGMA might be an initial clue to a more significant underlying pathology, such as autoimmune diseases, hypergammaglobulinemia or drug toxicities. However, identifying the aetiology can be challenging due to the diverse processes involved in the development of acidosis. A better understanding of the pathophysiology of NAGMA can help treating physicians suspect and evaluate the condition early and reach the correct diagnosis. This article provides an overview of renal acid-base regulation, discusses the pathophysiological processes involved in developing NAGMA and provides a framework for evaluation to reach an accurate diagnosis.

Demystifying normal-anion-gap metabolic acidosis: pathophysiology, aetiology, evaluation and diagnosis.

Internal Medicine Journal

Critical illness is a complex condition that can have a devastating impact on health and quality of life. Nutritional support is a crucial component of critical care that aims to maintain or restore nutritional status and muscle function. A one-size-fits-all approach to the components of nutritional support has not proven beneficial. Recent randomized controlled trials challenge the conventional strategy and support the safety and potential benefits of below-usual calorie and protein intakes at the early, acute phase of critical illness. Further research is needed to define optimal nutritional support throughout the intensive care unit stay. Individualized nutritional strategies relying on risk assessment tools or biomarkers deserve further investigation in rigorously designed, large, multicenter, randomized, controlled trials. Importantly, although nutritional support is crucial, it might not be sufficient to enhance the recovery of critically ill patients. Thus, achieving the greatest efficacy may require individualized nutritional support combined with early, prolonged physical rehabilitation within a multimodal, holistic care program throughout the patient's recovery journey.

Nutritional Support in the ICU.

BMJ : British Medical Journal

Accidental Epidural Infusion of Acetaminophen (Paracetamol) During Acute Postoperative and Labor Pain Management.

Anesthesia and Analgesia

Point-of-care ultrasound (POCUS) is changing the practice of nearly all specialties and is increasingly being incorporated as a bedside tool by more gastroenterologists and hepatologists. POCUS is most often used to answer focused clinical questions, supplement the traditional physical examination, and guide performance of invasive bedside procedures. This review describes several common POCUS applications used in gastroenterology and hepatology, as well as some novel applications that warrant further investigation.

Point-of-care ultrasound in Gastroenterology and Hepatology.

Clinical Gastroenterology and Hepatology

Systemic lupus erythematosus (SLE) is an autoimmune disease that more commonly affects African American people, although it is seen in people of all racial backgrounds. This condition is characterized by a dysregulated immune response resulting in widespread inflammation. Clinical manifestations caused by this inflammation include arthritis, anemia, cutaneous rashes, pleuritis, and nephritis. Treatment for SLE aims to reduce disease activity and maintain a state of low inflammation. In this regard, numerous treatments are used, such as hydroxychloroquine, glucocorticoids, and non-glucocorticoid immunosuppressants such as methotrexate. Related to these drugs resulting in significant adverse effects and being ineffective in controlling SLE symptoms in some patients, new biologic agents have been created in hopes of better treating SLE. This includes belimumab and anifrolumab, monoclonal antibodies directed against the cytokine, and type 1 interferon receptor, respectively. These agents are indicated in patients with SLE whose symptoms are inadequately controlled by standard therapy alone. Clinical trials have shown that these agents effectively reduce SLE symptoms as judged using standardized metrics of disease activity. These biological agents have also been shown to have generally mild side effects when taken by patients with SLE, making them safe for use. In addition to the above medications, new treatments are being developed for SLE patients, such as cenerimod, litifilimab, chimeric antigen receptor&#xa0;T cells, and DS-7011a (anti-toll-like receptor 7&#xa0;monoclonal antibody). These new treatments have shown promise in clinical trials. However, more information regarding their safety and efficacy is needed before they are available for the treatment of SLE.

Evolving Treatment Strategies for Systemic Lupus Erythematosus in Clinical Practice: A Narrative Review.

Curēus

Asthma is considered severe if it remains uncontrolled despite optimal conventional therapy, characterised by poor symptom control, frequent exacerbations and increased exposure to systemic corticosteroids. This has a significant impact on morbidity, mortality and healthcare resource utilisation. Recent advances in the understanding of asthma heterogeneity and immunopathogenesis have helped delineate precise disease pathways. The discovery of these pivotal pathways has led to the development of highly effective biologic therapies. Currently available asthma biologics target immunoglobulin E, interleukin (IL)-5/IL-5R&#x3b1;, IL-4R&#x3b1; and thymic stromal lymphopoietin. Identification of specific asthma phenotypes, utilising easily measurable biomarkers, has paved the way towards personalised and precision asthma management. Biologic therapies play a significant role in reducing exacerbations, hospitalisations and the need for maintenance systemic steroids, while also improving the quality of life in patients with severe asthma. The evidence for their clinical efficacy comes from randomised controlled trials (RCTs), extension studies, metanalyses and real-world data. This review synthesises findings from early, pivotal RCTs and subsequent studies following the approval of biologics for severe asthma. The safety and efficacy data from these studies, completed in a variety of settings, provide practical perspectives on their application and enhance their generalisability.

Headache management: pharmacological approaches.

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Headache management: pharmacological approaches.

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