Querulent paranoia: a follow-up.

This study deals with all querulent paranoias admitted to Gaustad Hospital during 1938-1972. As querulent paranoia is a rare clinical condition, a plea is made for a multicenter study. We had only 22 cases, but most of them have a follow-up over several years, so that we are able to know fairly well the long-term course of illness. The family background has very little to do with schizophrenia and manic-depressive psychoses. It seems that querulent paranoia is a psychogenic disorder, based on deviant personality structures and unlucky personal experiences. Somatic treatments with ECT and drugs have no effects.