Prise en charge des symptômes médicalement inexpliqués en médecine interne : un paradigme de la relation médecin-malade en situation d’incertitude

Systematic review on somatization in a transcultural context among teenagers and young adults: Focus on the nosography blur

Aims

Somatic complaints are a frequent cause for consultation in primary care. In a transcultural context, somatic complaints are typically associated with psychological distress. A recent review about somatic symptom disorders in adolescence showed some nosographic heterogeneity and outlined various etiological hypotheses (traumatic, environmental, or neurologic), separate from the cross-cultural considerations. Migrants' children encounter specific problems involving cultural mixing-issues of filiation (familial transmission) and affiliation (belonging to a group). This paper aims to provide a systematic review of somatization in transcultural contexts among teenagers and young adults, aged 13 to 24, over the past decade.

Methods

This review adheres to the quality criteria set forth by the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Two authors queried three English databases (Medline, PsycInfo, WebOfScience) about somatization in transcultural contexts (migrant or non-Western population) among teenagers (13-18), young adults (19-24), or both. The methodological process comprised articles selection, data extraction, and then the analysis of emerging themes. Setting selection criteria to limit the transcultural field was difficult.

Results

The study analyzed 68 articles. We present a descriptive analysis of the results, centered on three main themes. First, the literature highlights a nosographic muddle reflected in the combination of anxious and depressive symptoms together with the highly variable symptomatology. Second, discrimination issues were prevalent among the migrant population. Lastly, the literature review points out possibilities for improving a care pathway and reducing the diagnostic delay induced by migrants' hesitancy about Western care and the recurrent use of inappropriate diagnostic criteria.

Conclusion

This review discusses the links between the nosographic muddle described here and the diagnostic delays these patients experience and raises concerns about rigid diagnostic compartmentalization. The work of the psychiatrist Frantz Fanon is here useful to understand externalized symptoms resulting from physical and psychological confinement. Discrimination issues raise questions about the cultural counter-transference health professionals experience in dealing with young migrants. Defining healthcare professionals' representations about somatic complaints in a transcultural context might be a fruitful path to explore in future research.

Protocol PROSPERO registration number

CRD42021294132. Available from: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021294132.

Oxycodone/naloxone versus tapentadol in real-world chronic non-cancer pain management: an observational and pharmacogenetic study

Tapentadol (TAP) and oxycodone/naloxone (OXN) potentially offer an improved opioid tolerability. However, real-world studies in chronic non-cancer pain (CNCP) remain scarce. Our aim was to compare effectiveness and security in daily pain practice, together with the influence of pharmacogenetic markers. An observational study was developed with ambulatory test cases under TAP (n = 194) or OXN (n = 175) prescription with controls (prescribed with other opioids (control), n = 216) CNCP patients. Pain intensity and relief, quality of life, morphine equivalent daily doses (MEDD), concomitant analgesic drugs, adverse events (AEs), hospital frequentation and genetic variants of OPRM1 (rs1799971, A118G) and COMT (rs4680, G472A) genes, were analysed. Test CNCP cases evidenced a significantly higher pain relief predictable due to pain intensity and quality of life (R² = 0.3), in front of controls. Here, OXN achieved the greatest pain relief under a 28% higher MEDD, 8–13% higher use of pregabalin and duloxetine, and 23% more prescription change due to pain, compared to TAP. Whilst, TAP yielded a better tolerability due the lower number of 4 [0–6] AEs/patient, in front of OXN. Furthermore, OXN COMT-AA homozygotes evidenced higher rates of erythema and vomiting, especially in females. CNCP real-world patients achieved higher pain relief than other traditional opioids with a better tolerability for TAP. Further research is necessary to clarify the potential influence of COMT and sex on OXN side-effects.

Patient-Centered Medicine: A Necessary Condition for the Management of Functional Somatic Syndromes and Bodily Distress

This paper argues that “functional,” “medically unexplained,” or “somatoform” symptoms and disorders necessarily require a patient-centered approach from the clinicians. In the first part, I address the multiple causes of the patients' suffering and I analyze the unease of the doctors faced with these disorders. I emphasize the iatrogenic role of medical investigations and the frequent failure in attempting to reassure the patients. I stress the difficulties in finding the right terms and concepts, despite overabundant nosological categories, to give a full account of psychosomatic complexity. Finally, I discuss the moral dimension attached to assigning a symptom, at times arbitrarily, to a psychogenic origin. The following part presents a brief reminder of the patient-centered approach (PCA) in medicine. In the last part, I aim to explain why and how patient-centered medicine should be applied in the context of functional disorders. First, because PCA focuses on the patients' experience of illness rather than the disease from the medical point of view, which is, indeed, absent. Second, because PCA is the only way to avoid sterile attribution conflicts. Last, because PCA allows doctors and patients to collaboratively create plausible and non-stigmatizing explanations for the symptoms, which paves the way toward effective management.

[Functional somatic syndromes: A comprehensive cognitive model]

Functional somatic syndromes are frequent in general and specialized medicine practices. Several treatments can be useful. However, the treatment program is often hampered by patients' reluctance to acknowledge the diagnosis because of erroneous lay representations. Recent advances in cognitive science offer a new understanding of the pathophysiology of functional somatic disorders, making this diagnosis more acceptable for patients and caregivers. Simply explained with practical examples, the Bayesian model in particular provides some insights into the underlying cognitive mechanisms of functional somatic syndromes and their treatments. Advantages of this approach are twofold: it is consistent with current scientific knowledge and it can facilitate the physician-patient relationship.

[One or more functional somatic syndromes? Comparison of the health status of fibromyalgia and electro-hypersensitive people]

INTRODUCTION

Functional somatic syndromes, grouping somatic symptoms without an organic explanation, are defined either by their predominant symptoms or by an attribution to an, often hypothetical, cause. Due to many similarities, some authors consider that there is only one FSS due to a general phenomenon of "somatization". The objective of this work was to compare two functional somatic syndromes, one defined by its symptoms, fibromyalgia, and the other by a specific contested attribution, electro-hypersensitivity.

METHOD

Fibromyalgia or electro-hypersensitive participants (EHS) were recruited from September 2016 to April 2017 through associations of patients in Auvergne-Rhône-Alpes. Home interviews included the collection of medical, psychopathological, and symptom histories. The assessment of psychological distress, quality of life and the search for other functional somatic syndromes was performed through structured questionnaires, self-administrated scales, and clinical examination.

RESULTS

Sixteen fibromyalgia subjects and sixteen EHS subjects were included. There are differences in symptomatology, although many symptoms are common to both conditions. Lifetime history of psychiatric disorders and current psychological distress and psychopathology are frequent in both groups but more prevalent in fibromyalgia subjects. The experience of the symptoms, their interpretation, the diagnostic itineraries and the therapeutic behaviours differ radically according to the group, even if for all socio-professional impact is high and quality of life are altered.

CONCLUSION

The health status of fibromyalgia persons is overall worse than the health status of electro-hypersensitive individuals in this small sample. Despite the overlap in symptoms and a similar impact on daily functioning, this exploratory study suggests that heterogeneous mechanisms of "somatization" may be at stake in functional somatic syndromes.

[Pathway to diagnosis and real-life experience of patients believing they are affected by "chronic Lyme disease"]

OBJECTIVES

Chronic Lyme disease is a subject of scientific and social controversy in both Europe and the United States. The aim of our study was to analyze the pathway to diagnosis of patients believing they were affected by the disease, and to describe their real-life experience.

METHOD

A qualitative study was performed with 13 patients declaring themselves to be affected by chronic Lyme disease. Interviews were analyzed by 2 general medical practice interns, supervised by a general practitioner with a diploma in socio-anthropology and an infectious diseases specialist.

RESULTS

Internet and other media played a major role in informing the patients or their doctor about the existence and the characteristics of chronic Lyme disease. The diagnosis was confirmed by features considered objective (chronic infection by Borrelia, tick bite, positive serology, beneficial or worsening effects of antibiotics). The long medical diagnosis and treatment process of those interviewed was marked by a conflicted relationship with the medical profession, caused by a feeling of non-recognition and abandonment. They reported their experience as being very painful, both because of the physical pain and also the psychological consequences of their condition.

CONCLUSION

Improving the diagnosis and therapeutic management of patients believing themselves to be affected by chronic Lyme disease appears highly necessary both to limit their search for diagnosis and their experience of pain. It could be based on existing guidelines concerning medically unexplained symptoms to which the chronic Lyme disease issue appears quite similar on several points.