Supraventricular tachydysrhythmias in the emergency department.

Diagnosing and treating supraventricular tachycardias is routine in emergency medicine, and new strategies can improve efficiency and outcomes. This review provides an overview of supraventricular tachycardias, their pathophysiology, differential diagnosis, and electrocardiographic features. Clinical evidence guiding contemporary practice is determined largely by multiple observational studies, with few randomized controlled trials.

Case Report: Ketamine for Pain and Depression in Advanced Cancer.

Patients with advanced cancer often suffer from both severe pain and severe symptoms of depression. Use of traditional antidepressants is often limited by the short prognosis associated with advanced cancer. We present the case of a patient with neuropathic pain from advanced cancer and severe depression that responded dramatically to an intravenous infusion of ketamine resulting in decreased pain and resolution of severe depression symptoms.

Naloxegol in opioid-induced constipation: a new paradigm in the treatment of a common problem.

Opioid-induced constipation (OIC) imposes a significant burden for patients taking pain medications, often resulting in decreased quality of life. Treatment of OIC with traditional medications for functional constipation can be incompletely effective, leading to nonadherence with opioid treatment and undertreated pain. An emerging class of medications that counteract the adverse effects of opioids in the gastrointestinal tract while preserving central nervous system-based pain relief may represent a paradigm shift in the prevention and treatment of OIC.

Loss of E-Cadherin-Dependent Cell-Cell Adhesion and the Development and Progression of Cancer.

Classical cadherins are the key molecules that control cell-cell adhesion. Notwithstanding this function, it is also clear that classical cadherins are more than just the "glue" that keeps the cells together. Cadherins are essential regulators of tissue homeostasis that govern multiple facets of cellular function and development, by transducing adhesive signals to a complex network of signaling effectors and transcriptional programs.

Clinical utility of naloxegol in the treatment of opioid-induced constipation.

Opioids are a class of medications frequently used for the treatment of acute and chronic pain, exerting their desired effects at central opioid receptors. Agonism at peripherally located opioid receptors, however, leads to opioid-induced constipation (OIC), one of the most frequent and debilitating side effects of prolonged opioid use. Insufficient relief of OIC with lifestyle modification and traditional laxative treatments may lead to decreased compliance with opioid regimens and undertreated pain.