Jeff S. Kwon

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A 51-year-old female presented to the emergency department complaining of left-sided, nonpleuritic chest pain and a 10-lb. weight loss over the previous 2 months. She was a current smoker with a 20 pack-year history. A PA/lateral chest radiograph and chest computed tomogram (CT) demonstrated a large loculated effusion with pleural thickening (Fig. 1). There(More)
Prior research has shown that individuals with obstructive lung disease are at risk for sleep fragmentation and poor sleep quality. We postulated that patients with chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (known as overlap syndrome) who have more severe lung disease, as measured by lung hyperinflation (inspiratory(More)
Obesity is increasing world-wide; obesity hypoventilation syndrome (OHS), formerly Pickwickian syndrome, has increased in parallel. Despite its prevalence, OHS has not been studied well, but there is abundant evidence that it is tightly linked with sleep-disordered breathing, most commonly obstructive sleep apnea. This article reviews the pathophysiology of(More)
A 51-year-old female presented to the emergency department complaining of left-sided, nonpleuritic chest pain and a 10-lb. weight loss over the previous 2 months. She was a current smoker with a 20 pack-year history. A PA/lateral chest radiograph and chest computed tomogram (CT) demonstrated a large loculated effusion with pleural thickening (Fig. 1). There(More)
We describe a case of IgG4-related lung disease presenting as a lung mass with associated weight loss. IgG4-related disease is a systemic sclerosing disorder that causes fibrotic, often tumor-like manifestations that variably effect different organ systems. The clinical presentation of IgG4-related disease is protean. Timely recognition and diagnosis(More)
The relationship between obstructive sleep apnea (OSA) and increased risk for atrial fibrillation (AF) has been well established in previous studies. The relationship between OSA and silent AF is unknown. We hypothesized that patients with OSA but no known history of AF are at an increased risk for the arrhythmia and may be detectable by prolonged(More)
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