Abstract
The Quality Assurance Project is developing explicit and detailed treatment outlines for each of the major psychiatric disorders. Three sources of information are used: a meta-analysis of the treatment outcome literature, the opinions of a sample of practising psychiatrists, and the views of a panel of nominated experts. The recommendations for the treatment of obsessive-compulsive disorder were as follows: for those patients who have no significant personality disorder, either short-term dynamic psychotherapy or cognitive behaviour therapy is indicated if the illness has lasted less than a year or if obsessions are the predominant symptoms. When compulsions predominate, particularly when they have been present for more than a year, response prevention is the treatment of choice. Tricyclic antidepressants and cingulo-tractomy are also worthy of consideration in patients with persisting symptoms. Psychotherapy or cognitive behaviour therapy are the approaches recommended for compulsive personality disorder.