Monitoring
Patients with underlying conditions associated with the hypoventilation syndromes are often monitored before treatment to identify signs and symptoms suggestive of alveolar hypoventilation, particularly during sleep. This is especially important in patients with underlying neuromuscular disease, where twice-yearly or yearly testing, including pulmonary function tests, arterial blood gas analysis, measurement of respiratory muscle strength, and overnight polysomnograms, may be indicated.[36][37] In the same respect, many of these patients require similar testing after the start of ventilatory support, including with the use of nocturnal noninvasive ventilation, to ensure adequate treatment settings and to watch for disease progression.
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