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OBESITY/HYPOVENTILATION SYNDROME (ETIOLOGY (hypoxemia (PaCO2 > 45 torr,…
OBESITY/HYPOVENTILATION SYNDROME
ETIOLOGY
obesity
BMI > 30 kg/m2
chronic hypoventilation
daytime hypercapnia
hypoxemia
PaCO2 > 45 torr
PaO2 <70 mmHg
PATHOPHYSIOLOGY
obesity
compression of diaphragm
inability to get a deep breath
increased work of breathing
CLINICAL SIGNS AND SYMPTOMS
OSA
loud snoring
excessive daytime sleepiness
morning headaches
fatigue
exertional dyspnea
DIFFERENTIAL DIAGNOSIS
COPD
emphysema
diaphragmatic disorders
bronchitis
RESPIRATORY MANAGEMENT
ABG
intubation/mechanical ventilation
NPV/BiPap
weight loss program
bariatric surgery
diet therapy, medications
DIFFERENTIAL DIAGNOSIS
COPD
kyphoscoliosis
central sleep apnea
hypothyroidism
Lisa Stevenson