The American journal of medicine
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People who smoke conventional cigarettes are increasingly turning to electronic cigarettes (e-cigarettes) as a pathway to quitting. However, the efficacy and safety of e-cigarettes for smoking cessation remains controversial. ⋯ Among individuals attempting to quit smoking, nicotine e-cigarettes are more efficacious than conventional nicotine replacement or behavioral smoking cessation therapies, and may prove beneficial in reducing smoking-related health risks.
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For most of human history, diseases preying upon the nervous system could only be identified indirectly through neurological signs-making the neurology clinician's examination the principal diagnostic tool. While advanced imaging and electrophysiology of today's practice provides greater diagnostic precision, the wide array of tools available and their applications emphasizes the accuracy that the neurological examination provides to localization, which in turn enables our technology's precision to effectively and efficiently aid one's diagnosis.
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Lumbar disc herniations are common causes of lower back pain, neurological dysfunction, and buttock/leg pain. Herniation refers to the displacement of the nucleus pulposus of the intervertebral disc through the annulus fibrosus, thereby causing pressure on the neural elements. The sequalae of lumbar disc herniations range in severity from mild low back and buttock pain to severe cases of inability to ambulate and cauda equina syndrome. ⋯ Treatment plans are dictated by corresponding patient symptoms and examination findings with their imaging. Most patients can experience relief with nonsurgical measures. However, if symptoms persist or worsen, surgery may be appropriate.
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The use of cardiac point-of-care ultrasound (POCUS) is now widespread in clinics, emergency departments, and all areas of the hospital. Users include medical trainees, advanced practice practitioners, and attending physicians in many specialties and sub-specialties. Opportunities to learn cardiac POCUS and requirements for training vary across specialties, as does the scope of the cardiac POCUS examination. In this review, we describe both a brief history of how cardiac POCUS emerged from echocardiography and the state of the art across a variety of medical fields.
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A comprehensive approach to hypertension requires out-of-office determinations by home or ambulatory monitoring. The 4 phenotypes comparing office and out-of-office pressures in treated and untreated patients include normotension, hypertension, white-coat phenomena, and masked phenomena. Components of out-of-office pressure may be equally as important as mean values. ⋯ Pressure normally peaks in the morning hours ("morning surge") when cardiovascular events are most common. Morning hypertension may result from residual nocturnal hypertension or an exaggerated surge and has been associated with enhanced cardiovascular risk, especially in Asian populations. Randomized trials are needed to determine whether altering therapy based solely on either abnormal dipping, isolated nocturnal hypertension, or an abnormal surge is justified.