The large amount of scientific literature regarding vitamin D can be overwhelming and confusing. Some organizations have made specific guidelines and recommendations regarding optimal blood levels of vitamin D. In the sports medicine literature, new information about the effects of vitamin D on performance and bone health abound. Most of these articles seem to raise more questions than they answer. Are athletes at increased risk of vitamin D deficiency? Does vitamin D deficiency affect athletic performance? Should athletes be tested for deficiency? What is the optimal goal for vitamin D levels in athletes and is this different from the general population? The goal of this article is to provide clinical insight and clarity, both for those practicing in the primary care setting as well as for those taking care of athletes.
Strongyloides stercoralis is a helminth found in the soil and transmitted to humans through larval penetration of the skin. It is endemic across most of the tropical regions of the world. Infection with S. stercoralis commonly causes minimal or mild symptoms. This case report describes an interesting final diagnosis for a woman presenting with persistent nausea, vomiting and epigastric pain. Her evaluation included imaging and oesophagogastroduodenoscopy with biopsy. Her biopsy results revealed oesophageal candidiasis and disseminated strongyloidiasis. Important historical clues in this case included previous prolonged treatment with steroids, recent diagnosis of gram-negative bacteraemia, prior residence in Rwanda, and unknown predeparture treatment for S. stercoralis. She was ultimately treated with fluconazole and ivermectin with marked improvement in her symptoms.
Wheezing is a commonly encountered complaint by patients seen in sports medicine practice. Wheezes are a continuous musical sound heard best on expiration and can originate from one or more of several defined anatomical locations in the human airway. While common causes of wheezing include exercise-induced bronchoconstriction, postnasal drip, and asthma, wheezing also follows specific respiratory infections and can persist for months after the onset of symptoms. Abnormal lung physiology following pneumonia can persist for decades. These postinfectious pulmonary changes affect the ability of athletes to return to sports. In addition to history and physical examination, diagnosis may require pulmonary function testing and exercise challenge testing. The cornerstone to management is an accurate diagnosis and using lifestyle and pharmacologic intervention. Return to play should be gradual and allowed only after individuals demonstrate adequate pulmonary capacity to meet the demands of their sport. Providers also should be aware of governing body regulations regarding treatments and required therapeutic use exemptions.
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