[Optimization of electroconvulsive therapy. Strategies for an adequate convulsion: role of caffeine].

The Electroconvulsive Therapy is a widely used technique in psychiatry as a treatment for several mental disorders with particular indications. To produce therapeutic effect it's necessary to induce a convulsion which is considered adequate if its duration lasts more than 20 seconds. Considerations that should be taken in to account and possible enhancement strategies when convulsion is not adequate are revised in the present article. Among these strategies we focus on the specific role of caffeine as convulsion enhancer and on aspects related to its use and administration form.