Objective: The aim of this paper is to discuss the logistic and ethical questions related to the possibility of intervention prior to the onset of first-episode psychosis (i.e. during the prodromal phase).
Method: The method involved examination of the published literature on prevention of psychotic disorders and other mental disorders, and critical evaluation of current practice in treating pre-psychotic individuals.
Results: Issues of possibly unnecessary or premature labelling, stigma and treatment arise. The question of whether such early intervention merely diagnoses the disorder earlier but does not actually improve outcome is also discussed, as are the economic implications of shifting emphasis from treatment of established disorders to preventive interventions.
Conclusions: There are many legitimate concerns related to intervening in pre-psychotic individuals which must be understood by those involved in planning preventive interventions. Policies should be developed incorporating some of the ethical and economic concerns, and these need to be evaluated and changed in response to ongoing research. However, these issues need not stand in the way of the development of innovative preventive approaches to the treatment of schizophrenia and other psychotic disorders.
McGorryPDSinghBSSchizophrenia: risk and possibility. In: RaphaelBBurrowsGD, eds. Handbook of preventive psychiatry. Amsterdam: Elsevier, 1995:492–514.
2.
McGlashanTHJohannessenJOEarly detection and intervention with schizophrenia: rationale. Schizophrenia Bulletin1996; 22:201–222.
3.
McGorryPDEdwardsJMihalopoulosCHarriganSMJacksonHJEPPIC: an evolving system of early detection and optimal managementSchizophrenia Bulletin1996; 22:305–326.
4.
LinszenDDingemansPvan Der DoesJWTreatment, expressed emotion and relapse in recent onset schizophrenic disorders. Psychological Medicine1996; 26:333–342.
5.
FalloonIRHEarly intervention for first episodes of schizophrenia: a preliminary exploration. Psychiatry1992; 55:4–15.
6.
YungARMcGorryPDMcFarlaneCAJacksonHJPattonGCRakkarA.Monitoring and care of young people at incipient risk of psychosis. Schizophrenia Bulletin1996; 22:283–303.
7.
SullivanHSThe onset of schizophrenia. American Journal of Psychiatry1994; 151(Suppl. 6): 135–139.
8.
MearesA.The diagnosis of prepsychotic schizophreniaLancet1959; I:55–59.
9.
MrazekPJHaggertyRJ, ed. Reducing risks for mental disorders: frontiers for preventive intervention research. Washington DC: National Academy Press, 1994.
10.
EatonWWBadawiMMeltonB.Prodromes and precursors: epidemiologic data for primary prevention of disorders with slow onsetAmerican Journal of Psychiatry1995; 152:967–972.
11.
YungARMcGorryPDThe prodromal phase of first episode psychosis: past and current conceptualisations. Schizophrenia Bulletin1996; 22:353–370.
12.
HerzMILambertiJSProdromal symptoms and relapse prevention in schizophrenia. Schizophrenia Bulletin1995; 21:541–551.
13.
BellRQMultiple-risk cohorts and segmenting risk as solutions to the problem of false positives in risk for the major psychoses. Psychiatry1992; 55:370–381.
14.
CornblattBAKeilpJGImpaired attention, genetics, and the pathophysiology of schizophrenia. Schizophrenia Bulletin1994; 20:31–47.
15.
BuchananRWHeinrichsDWThe Neurological Evaluation Scale (NES): a structured instrument for the assessment of neurological signs in schizophrenia. Psychiatry Research1989; 27:335–350.
16.
RossiAStrattanPD'AlbenzioLVReduced temporal lobe areas in schiophrenia: preliminary evidences from a controlled multiplanar magnetic resonance imaging study. Biological Psychiatry1990; 27:61–68.
17.
YungARMcGorryPDPhillipsLJFranceySJacksonHJPattonGCCan we predict first episode psychosis? A step towards indicated prevention of schizophrenia. Abstract presented at the First Psychotic Episode of Schizophrenia Conference. Amsterdam, 28–29 November 1996.
18.
FinkPJTsamanA, ed. Stigma and mental illness. Washington DC: American Psychiatric Press, 1993.
19.
McGlashanTHEarly detection and intervention in schizophrenia [editor's introduction]. Schizophrenia Bulletin1996; 22:197–199.
20.
WeinbergerDBermanKZecR.Physiological dysfunction of dorsolateral prefrontal cortex in schizophrenia: I. Regional cerebral blood flow (rCBF) evidence. Archives of General Psychiatry1986; 43:114–124.
21.
YungARPhillipsLJMcGorryPDThe prediction of psychosis: a step towards indicated prevention of schizophrenia?British Journal of Psychiatry (in press).