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Sleep EEG and DST findings in anergic bipolar depression

1989; American Psychiatric Association; Volume: 146; Issue: 3 Linguagem: Inglês

10.1176/ajp.146.3.329

1535-7228

Michael E. Thase, Jonathan M. Himmelhoch, Alan G. Mallinger, D B Jarrett, David J. Kupfer,

Treatment of Major Depression

The authors report sleep EEG and dexamethasone suppression test (DST) findings for a homogeneous sample of anergic bipolar depressed outpatients (bipolar I, N = 7; bipolar II, N = 19) characterized by motor retardation, volitional inhibition, hypersomnia, or weight gain and sleep EEG findings for 26 age- and sex-matched normal control subjects. Sleep architecture was abnormal in bipolar depression, particularly with respect to little stage 1 sleep. The biological profile of an anergic episode of bipolar depression did not include a shorter than normal mean REM latency, poor sleep continuity, or abnormally low amounts of stages 3 and 4 sleep, and only three (13%) of 23 patients manifested cortisol nonsuppression.