Chest
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Serum chloride is an important homeostatic biomarker in left heart failure, with significant prognostic implications. The impact of serum chloride in the long-term survival of patients with pulmonary arterial hypertension (PAH) is unknown. We tested whether serum chloride levels are associated with long-term survival in patients with PAH. ⋯ Serum chloride at 6 months from the PAH diagnosis is a strong and independent predictor of mortality in patients with idiopathic or heritable PAH, even after adjusting serum sodium, renal function, diuretic, and prostacyclin analog usage.
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Multiple manifestations of sleep disorders may interact with the law, making it important to increase awareness of such interactions among clinicians. Patients with excessive sleepiness may have civil (and in some states criminal) liability if they fall asleep while driving and cause a motor vehicle accident. Employers may be held vicariously liable because of the actions of sleepy employees. ⋯ Sleep telemedicine practice using 21st century technology has opened novel and unique challenges to existing laws. In this review, we cover the most common interactions between sleep disorders and the law, including the challenges of excessive sleepiness and driving, other legal issues involving patients with OSA, and the liabilities associated with parasomnia disorder. We will also cover some practical legal aspects involving independent sleep laboratories and the field of sleep telemedicine.
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Case Reports
A 63-Year-Old Man Presents With Slowly Progressive Dyspnea on Exertion and Lower Extremity Muscle Weakness.
A 63-year-old man was referred for slowly progressive dyspnea on exertion that had developed over 7 years. Dyspnea was initially only present during high-intensity physical activity, but was now present while walking rapidly on a flat surface. Symptoms were accentuated while supine and when bending forward. ⋯ He also had OSA, which was adequately controlled with continuous positive airway pressure therapy. Neurologic and rheumatologic histories were otherwise unremarkable. He denied any impact accidents or trauma to the cervical spine and prior neck or thoracic surgeries.