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CPG for Psychosocial Interventions in Severe Mental ... - GuíaSalud

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From another po<strong>in</strong>t of view, social skills tra<strong>in</strong><strong>in</strong>g can be based on three models: the basic<br />

model based on corrective learn<strong>in</strong>g, social problem-solv<strong>in</strong>g and cognitive rehabilitation 27 . There<br />

are very few def<strong>in</strong>itions <strong>in</strong> literature of any of these three approaches, with respect to their effects<br />

on the generalisation of behaviours and the improvement <strong>in</strong> social function<strong>in</strong>g 31 .<br />

The grounds <strong>for</strong> us<strong>in</strong>g social skills tra<strong>in</strong><strong>in</strong>g <strong>in</strong> schizophrenia are based on multiple empiric<br />

and conceptual sources. Social skills and social competence can be considered as protective factors<br />

with<strong>in</strong> the stress-vulnerability diathesis model <strong>for</strong> schizophrenia. Re<strong>in</strong><strong>for</strong>c<strong>in</strong>g the skills and<br />

social competence of people with schizophrenia -together with other evidence-based <strong>in</strong>terventions-<br />

reduces and compensates the harmful effects of the cognitive deficit, neurobiological vulnerability,<br />

stressful events and social maladjustment 29 .<br />

Question to be answered<br />

• Is cognitive behavioural therapy-based psychological <strong>in</strong>tervention effective <strong>in</strong> the treatment<br />

of people with SMI?<br />

The studies found analyse the effectiveness of CBT either aimed at people with SMI and a<br />

diagnosis of schizophrenia and related disorders or at people with SMI and a diagnosis of bipolar<br />

disorders. No studies have been found that discrim<strong>in</strong>ate psychosocial <strong>in</strong>terventions <strong>for</strong> severe<br />

compulsive obsessive disorder or <strong>Severe</strong> <strong>Mental</strong> Illnesses as only population.<br />

Cognitive-behavioural therapy (CBT) <strong>for</strong> people with SMI and a diagnosis of schizophrenia<br />

and related disorders<br />

Jones et al 32 per<strong>for</strong>m a SR comprised of 19 RCTs; quasi-randomised studies were excluded. No<br />

trial was able to use a double-bl<strong>in</strong>d experiment, due to the difficulties <strong>in</strong>herent to the concealment<br />

process <strong>in</strong> psychosocial <strong>in</strong>terventions. Out of all the RCTs, 7 studies tried to reduce any result<strong>in</strong>g<br />

bias by us<strong>in</strong>g assessors who were unaware of the designation. The duration of the trials varied<br />

between 8 weeks 33 and 5 years 34 , but the average duration was approximately 20 months.<br />

The 19 trials focused their study on people with psychosis, such as schizophrenia, delirium<br />

disorder or schizoaffective disorder, and they all used operative criteria <strong>for</strong> the diagnoses (DSM<br />

III-R, DSM-IV or ICD-10). It was reported that many people suffered other comorbid mental<br />

disorders such as depression or anxiety disorder. In only one trial, the duration of the illness was<br />

less than 5 years 35 . Some authors <strong>in</strong>tentionally selected people with medication-resistant symptoms<br />

36,37 . The ages of the participants varied between 18 and 65 years old.<br />

The follow<strong>in</strong>g <strong>in</strong>terventions are assessed <strong>in</strong> this review:<br />

• Cognitive-behavioural therapy: this has been used to make reference to different <strong>in</strong>terventions,<br />

so the reviewers prepared the follow<strong>in</strong>g specific criteria to be able to def<strong>in</strong>e a<br />

cognitive-behavioural <strong>in</strong>tervention as such:<br />

– The <strong>in</strong>tervention must represent the establishment of relationships between thoughts,<br />

feel<strong>in</strong>gs and actions of the person with respect to the symptom <strong>in</strong> question.<br />

– It must also represent the correction of false perceptions, irrational beliefs and reason<strong>in</strong>g<br />

biases of the person <strong>in</strong> connection with the symptom <strong>in</strong> question.<br />

– It must <strong>in</strong>volve at least one of the follow<strong>in</strong>g conditions: Control by the person of his<br />

or her thoughts, feel<strong>in</strong>gs and behaviours related to the symptom <strong>in</strong> question, and the<br />

proposal of alternatives to cope with it.<br />

CLINICAL PRACTICE GUIDELINES FOR PSICHOSOCIAL INTERVENTIONS IN SEVERE MENTAL ILLNESS 37

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