Sample Type / Medical Specialty: Sleep Medicine
Sleep medicine is a medical specialty or subspecialty devoted to the diagnosis and therapy of sleep disturbances and disorders. From the middle of the 20th century, research has provided increasing knowledge and answered many questions about sleep-wake functioning.
CPAP Titration Study
The patient was monitored for EEG, EOG, jaw and leg EMG, thoracoabdominal impedance, oral/nasal thermistors, EKG, and oximetry.
Normal awake and drowsy (stage I sleep) EEG for patient's age.
Electroencephalogram - 1
Electroencephalogram (EEG). Photic stimulation reveals no important changes. Essentially normal.
Electroencephalogram - 2
Electroencephalogram (EEG). This is an 18-channel recording obtained using the standard scalp and referential electrodes observing the 10/20 international system.
Electroencephalogram - 3
Abnormal electroencephalogram revealing generalized poorly organized slowing, with more prominent slowing noted at the right compared to the left hemisphere head regions and rare sharp wave activity noted bilaterally, somewhat more prevalent on the right.
Electroencephalogram - 4
A 21-channel digital electroencephalogram was performed on a patient in the awake state.
Electroencephalographic findings and interpretation
Obesity Hypoventilation Syndrome
Obesity hypoventilation syndrome. A 61-year-old woman with a history of polyarteritis nodosa, mononeuritis multiplex involving the lower extremities, and severe sleep apnea returns in followup following an overnight sleep study.
The patient underwent an overnight polysomnogram.
The patient was monitored for EEG, EOG, jaw and leg EMG, thoracoabdominal impedance, oral/nasal thermistors, EKG, and oximetry. The test was performed due to suspicion of sleep apnea and poor sleep quality with frequent awakenings.