Encephale
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Charles-Bonnet syndrome (CBS) is conventionally defined by the presence of visual hallucinations in patients suffering from lowered visual acuity without having psychosis or dementia. Actually, it is a syndrome that interests many specialties, especially ophthalmology, geriatrics, neurology and psychiatry. "Atypical CBS" or "CBS plus" was introduced to designate any kind of visual hallucinations that could be considered as a CBS but accompanied by a low level of insight, a possible cognitive decline, other hallucinatory modalities etc. Since all patients suffering from CBS have to be psychiatrically evaluated, psychological and psychiatric implications of their syndrome have to be well understood in order to better manage them. These psychiatric and psychological implications are: the relationship between the CBS and dementia, the psychological reaction of the patients towards their hallucinations and psychiatric comorbidities that could be developed during the course of the syndrome. ⋯ Atypical CBS is a syndrome that could be eventually associated with dementia, accompanied with a major depressive disorder or another psychiatric disorder, or with vulnerability towards psychiatric disorders. Patients suffering from atypical CBS should be closely followed psychiatrically and neurologically. Patients suffering from the typical CBS should also benefit from a psychiatric follow-up, due to their multiple psychiatric vulnerability factors and their possible management with psychotropic drugs.
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Cenesthesia and cenesthopathy have played a fundamental role in 19th and early 20th century French and German psychiatry. Cenesthesia refers to the internal, global, implicit and affective perception of one's own body. The concept of cenesthopathy was coined by Dupre and Camus in 1907 to describe a clinical entity characterized by abnormal and strange bodily sensations. ⋯ This review illustrates that the historical descriptions of cenesthesia and cenesthopathy remain relevant in contemporary neurocognitive models and more generally suggests that the comprehension of quite complex phenomena like delusion requires a multidisciplinary approach.
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In substance use disorders, the lack of empirically supported treatments and the minimal utilization of available programs indicate that innovative approaches are needed. Mindfulness based therapies have been used in addictive disorders for the last 10years. Mindfulness can be defined as the ability to focus open, non-judgmental attention to the full experience of internal and external phenomena, moment by moment. Several therapies based on mindfulness have been developed. The aim of this study is to review the existing data on the use of these programs in addictive disorders. ⋯ The first clinical studies testing mindfulness based interventions in substance use disorders have shown promising results. They must be confirmed by larger controlled randomized clinical trials. By developing a better acceptance of unusual physical sensations, thoughts about drugs and distressing emotions, mindfulness may help in reducing the risk of relapse.
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The comorbidity between chronic pain and depression is high: in the general population setting, the odds ratio for suffering from one of these disorders when suffering from the other is estimated around 2.5. For chronic pain patients consulting in pain clinics, the comorbidity rate reaches one third to half of the patients. For the International Association for the Study of Pain (IASP), pain consists in an emotional as well as a sensory dimension, both of them have to be assessed systematically. Likewise, affective disorders must be systematically depicted in chronic pain patients. The reasons for such comorbidity are complex and result from the conjunction of common risk factors (environmental and genetic vulnerability factors) and of a bidirectional causality. THE TRANSACTIONAL MODEL OF STRESS AND COPING OF LAZARUS ET FOLKMAN: The appraisal stress model (Lazarus and Folkman, 1984) offers an opportunity to understand how chronic pain can cause depression. Pain is conceptualized as a chronic stress. Its appraisal in terms of loss, injustice, incomprehensibility or changes (primary appraisal), and in terms of control (secondary evaluation) determine how the subject will cope with pain. Several personality traits as optimism, hardiness or internal locus of control play a protective role on these evaluations, whereas others (neuroticism, negative affectivity or external locus of control) are risk factors for depression. Low perceived social support is also related to depression. On the contrary, self-efficiency is linked with low levels of depression. Self-management therapies focus on increase of perceived control of pain by the patient in order to improve his/her motivation to change, and to let the patient become active in the management of his/her pain. ⋯ According to Lazarus and Folkman (1984), coping strategies are the constantly changing cognitive and behavioural efforts to manage specific external and/or internal demands that are appraised as taxing on or exceeding the resources of the person. Pain patients can use a wide variety of pain coping strategies: problem versus emotion focused strategies or cognitive versus behavioural strategies. Some of them are highly dysfunctional, such as catastrophizing (cognitive strategy) or avoidance (behavioural strategy). Their preferential use can lead to the development of a depressive episode. The "fear-avoidance model" (Vlayen, 2000) explains pain chronicization by a vicious circle that begins with the pain catastrophizing; this leads to fear of pain, which in turn leads to avoidance and finally to pain and depression. This is why some behavioural cognitive interventions focus on the reduction of catastrophizing and avoidance. Some functional pain coping strategies were identified: they are active strategies centred on problem resolution such as distraction, reinterpretation or ignorance of pain sensations, acceptance, and exercise and task persistence. New therapeutic interventions focus on the development of better coping strategies such as distraction, relaxation and acceptance.
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This paper summarizes the recent literature on the phenomena of psychogenic non epileptic seizures (PNES). DEFINITION AND EPIDEMIOLOGY: PNES are, as altered movement, sensation or experience, similar to epilepsy, but caused by a psychological process. Although in the ICD-10, PNES belong to the group of dissociative disorders, they are classified as somatoform disorders in the DSM-IV. That represents a challenging diagnosis: the mean latency between manifestations and diagnosis remains as long as 7 years. It has been estimated that between 10 and 30% of patients referred to epilepsy centers have paroxysmal events that despite looking like epileptic episodes are in fact non-epileptic. Many pseudo epileptic seizures have received the wrong diagnosis of epilepsy being treated with anticonvulsants. The prevalence of epilepsy in PNES patients is higher than in the general population and epilepsy may be a risk factor for PNES. It has been considered that 65 to 80% of PNES patients are young females but a new old men subgroup has been recently described. POSITIVE DIAGNOSIS AND PSYCHIATRIC COMORBIDITIES: Even if clinical characteristics of seizures were defined as important in the diagnosis algorithm, this point of view could be inadequate because of its lack of sensitivity. Because neuron-specific enolase, prolactin and creatine kinase are not reliable and able to validate the diagnosis, video electroencephalography monitoring (with or without provocative techniques) is currently the gold standard for the differential diagnosis of ES, and PNES patients with pseudoseizures have high rates of psychiatric disorders such as depression, anxiety, somatoform symptoms, dissociative disorders and post-traumatic stress disorder. We found evidence for correlations between childhood trauma, history of childhood abuse, PTSD, and PNES diagnoses. PNES could also be hypothesized of a dissociative phenomena generated by childhood trauma. ⋯ PNES is a diagnostic and therapeutic challenge that is costly to patients and to society at large. Further studies are needed to understand this dissociative psychiatric disorder and to propose therapeutic guidelines.