To the Editor The study by Janssen et al1 of a single exposure to whole-body hyperthermia relieving major depressive disorder is difficult to interpret and will need replication. The participants were highly selected from among long-time ill individuals with modest scores on the 17-item Hamilton Depression Rating Scale having less than 40% reduction with treatment. Which form of depression in the pool of “major depression” may be responsive to hyperthermia?
Fink M, Shorter E. Hyperthermia for Major Depressive Disorder?. JAMA Psychiatry. 2016;73(10):1096. doi:10.1001/jamapsychiatry.2016.1627