Amiodarone is a class III antiarrhythmic drug widely used for both ventricular and supraventricular tachyarrhythmias. Due to its high iodine content and structural similarity to thyroxine, abnormalities in thyroid function are common in patients taking amiodarone, especially with long-term use. Both hypo- and hyperthyroidism have been associated with amiodarone, with the former far more common in the United States. We present a patient with medically refractory amiodarone-induced thyrotoxicosis after a 2-year history of amiodarone use, resulting in cardiac arrest and encephalopathy. The patient ultimately required total thyroidectomy for symptomatic control.
The diagnosis of AOM confers a significant incremental health-care utilization burden on both patients and the health care system. With its high prevalence across the United States, pediatric AOM accounts for approximately $2.88 billion in added health care expense and is a significant health-care u...
We study the total positivity of the kernel $1/(x^2 + 2 \cos(\pi\a)xy +y^2).$
The case of infinite order is characterized by an application of Schoenberg's
Theorem. We then give necessary conditions for the cases of any given finite
Order with the help of Chebyshev polynomials of the second kind. Su...
We consider downlink precoding in a frequency-selective multi-user Massive
MIMO system with highly efficient but non-linear power amplifiers at the base
Station (BS). A low-complexity precoding algorithm is proposed, which generates
Constant-envelope (CE) signals at each BS antenna. To achieve a des...
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