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Biomedical subjects

Steven H Yale

Publications and source records attributed to Steven H Yale.

28 records · Page 2Linked to original sources
PubMed2004

Hematologic and metabolic abnormalities in a patient with anorexia nervosa.

Anorexia nervosa is a common problem in young adults that may present with a variety of metabolic and hematologic abnormalities, as well as weight loss and psychological disturbances. We present a young man with a long history of anorexia nervosa who developed pancytopenia associated with decreased bone marrow cellularity and abnormal architecture and marrow infiltration with an amorphous, gelatinous substance characteristic of anorexia nervosa. The patient also developed osteopenia with evidence of excessive calcium excretion. The pancytopenia and marrow function reverted to normal with therapeutic and dietary intervention. The effects of eating disorders can result in serious consequences with respect to an individual's health and well-being. A host of hematologic abnormalities that are associated with anorexia nervosa have the potential of increasing the risk of infection and bleeding. Additionally, because of the insidious development of anemia in some patients, decreased performance status and chronic fatigue can pose significant compromises in one's daily activities and work effort. Anorexia nervosa is a chronic illness that is distinctly more common in females than in males (ratio of 10 to 1), but can affect males in an equally debilitating manner, requiring multiple modalities of therapeutic intervention and consultation. We present the case of a male referred to the hematology department because of pancytopenia, chronic fatigue, and back pain. A diagnosis of anorexia nervosa had been made 10 years prior at the age of 18 years.

Adult↗
PubMed2003

Hyperventilation-induced syncope: no need to panic.

Accurately diagnosing and treating adult patients presenting with recurrent syncope can be extremely problematic. We present the case of a patient who presented with recurrent syncope. We propose that many cases currently classified as idiopathic may in fact be due to orthostatic hypotension secondary to hyperventilation, or simply hyperventilation-induced syncope. The presence of undiagnosed psychiatric disorders should be considered in these patients.

Adult↗
PubMed2003

Neurologic conditions: assessing medical fitness to drive.

Clinicians are often asked to make an assessment on whether a patient is medically fit to drive, even though few have been formally trained in this area. Driving is a complex task that requires having adequate operational, cognitive and higher executive functions that work together. These functions can be compromised to a greater or lesser extent in neurological disorders, such as stroke, traumatic brain injury, peripheral neuropathy, dementia, Parkinson's disease and epilepsy. There is insufficient standardized information relating to impaired function at this time. Because of this, state laws vary in their assessment of medical conditions as they relate to driver licensing. Wisconsin laws are reviewed as an example. There are numerous assessment tests for various functions, but they lack a validated correlation with actual driving performance. These and other factors, as well as practical recommendations for the practicing physicians, are the subjects of this review.

Automobile Driver Examination↗