Category: Psychiatry/Psychology

Chronic fatigue syndromes in clinical practice

Abstract:

Chronic fatigue is a common and difficult challenge in clinical practice. The majority of patients with this chief complaint have treatable mood or anxiety disorders, complicated by a tendency toward somatization. A minority of patients suffer from sleep disorders, endocrinologic abnormalities, or chronic inflammatory conditions. Prolonged recovery after viral infections is only rarely the cause of chronic fatigue. Specific pharmacologic interventions and cognitive-behavioral therapy are effective in an environment that is sensitive to the patient’s interpretation of symptoms and avoids unproven medical investigations and therapies.

 

Source: Manu P, Lane TJ, Matthews DA. Chronic fatigue syndromes in clinical practice. Psychother Psychosom. 1992;58(2):60-8. http://www.ncbi.nlm.nih.gov/pubmed/1484921

 

The pathophysiology of chronic fatigue syndrome: confirmations, contradictions, and conjectures

Abstract:

OBJECTIVE: To examine published data regarding patient cohorts with the recently defined chronic fatigue syndrome.

METHOD: Review of thirty-two peer-assessed research publications that included full disclosure of the methodology employed; classification of the findings as confirmed, contradictory, or non-duplicated.

RESULTS: Research studies have confirmed that the majority of patients with the chronic fatigue syndrome: 1) are white middle-aged women, 2) have a high prevalence of current major depression and somatization disorder, 3) have abnormal personality traits, 4) believe that their fatigue has a physical cause, and 5) show mild abnormalities of humoral immunity. Contradictory data have been presented with regard to: 1) the time of onset of depressive disorders, 2) the etiologic role of herpetic and enteroviral infections, 3) the presence of abnormal cellular immunity, and 4) the clinical utility of immunoglobulin therapy. Non-duplicated research has indicated 1) hypothalamic-pituitary-adrenal axis dysfunction, 2) abnormalities on magnetic resonance images of the brain, 3) altered cytokine production, and 4) the possibility of retroviral infection.

CONCLUSIONS: As presently defined, the chronic fatigue syndrome has many of the clinical and biological features associated with depressive and somatoform disorders. A specific etiologic role for infections or immune dysfunction has not been confirmed.

 

Source: Manu P, Lane TJ, Matthews DA. The pathophysiology of chronic fatigue syndrome: confirmations, contradictions, and conjectures. Int J Psychiatry Med. 1992;22(4):397-408. http://www.ncbi.nlm.nih.gov/pubmed/1338059

 

Neurasthenia and chronic fatigue syndrome: the role of culture in the making of a diagnosis

Abstract:

Chronic fatigue syndrome is an increasingly popular diagnosis consisting of multiple psychiatric and somatic symptoms. It bears a striking resemblance to the nineteenth-century diagnosis of . Both disorders arose during periods characterized by a preoccupation with commerce and material success and major changes in the role of women. They illustrate the role of culture in the development of a new diagnosis that emphasizes a “medical” rather than “psychiatric” etiology. The authors argue that chronic fatigue syndrome will meet the same fate as neurasthenia–a decline in social value as it is demonstrated that the majority of its sufferers are experiencing primary psychiatric disorders or psychophysiological reactions and that the disorder is often a culturally sanctioned form of illness behavior.

Comment in:

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

Taking chronic fatigue syndrome seriously. [Am J Psychiatry. 1992]

 

Source: Abbey SE, Garfinkel PE. Neurasthenia and chronic fatigue syndrome: the role of culture in the making of a diagnosis. Am J Psychiatry. 1991 Dec;148(12):1638-46. http://www.ncbi.nlm.nih.gov/pubmed/1957925

 

Chronic fatigue syndrome

Comment on:

Antidepressant therapy in the chronic fatigue syndrome. [Br J Gen Pract. 1991]

General practitioners’ experience of the chronic fatigue syndrome. [Br J Gen Pract. 1991]

 

Sir, I read with interest the papers on the chronic fatigue syndrome (August Journal, p.324, 339). This syndrome has become an important diagnosis in both general practice and psychiatry. With the awareness of such a diagnostic entity, more patients are being recognized and managed (although the aetiology still remains unknown).

Depression as an inherent feature of chronic fatigue syndrome remains a controversial issue and great care is needed in treating these patients as ‘depressed’. Subjectively, many patients with the chronic fatigue syndrome describe their mood state as depressed, probably because of lack of any other socially approved metaphor. For a practitioner, however, it is important to make an objective assessment about the significance of this expression in terms of the range and reactivity of affect and the disproportion of depressive presentation in the context of the patient’s life situation and experiences. If depression is significant, the diagnosis of chronic fatigue syndrome becomes secondary to that of depressive disorder as fatigue may be a feature of depression. However, if chronic fatigue syndrome remains the primary diagnosis, one must remember that antidepressant drugs are neither euphoriants nor stimulants and that there is no empirical evidence for the benefit of antidepressant treatment in this syndrome, although there is a recommendation for it to be tried as an alternatp mode of treatment.

 

Source: Arya DK. Chronic fatigue syndrome. Br J Gen Pract. 1991 Nov;41(352):480. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1371803/

 

Seasonal affective disorder presenting as chronic fatigue syndrome

Abstract:

Although operational criteria have been recently proposed to better define chronic fatigue syndrome (CFS), it remains a controversial diagnosis. There are many overlapping symptoms between CFS and major depression. The author presents two patients with seasonal affective disorder, who responded to phototherapy and had previously been diagnosed as CFS. Because of the consequences of treatment, seasonal and non seasonal depression need to be ruled out in patients with chronic fatigue symptoms.

 

Source: Lam RW. Seasonal affective disorder presenting as chronic fatigue syndrome. Can J Psychiatry. 1991 Nov;36(9):680-2. http://www.ncbi.nlm.nih.gov/pubmed/1773405

 

Intense fatigue in humans. Psychosocial and cultural aspects

Abstract:

A differentiation between the normal sensation of tiredness and the symptom “fatigue” is often difficult. Both are influenced by cultural, social, psychological and biological factors, which can lead–interactively–to symptom formation. Psychiatric disorders frequently associated with fatigue are all forms of depression, somatization and anxiety disorders, chronic pain states and drug abuse among many others. In at least 2/3 of patients with the fashionable chronic fatigue syndrome–formerly called neurasthenia–a psychiatric diagnosis can be made, most of them also suffer from many symptoms attributes to the autonomous nervous system. The clinical approach should be cautious avoiding diagnostic and therapeutic overaction and therapy should emerge from a diagnosis properly assessed.

 

Source: Radvila A. Intense fatigue in humans. Psychosocial and cultural aspects. Ther Umsch. 1991 Nov;48(11):756-61. [Article in German] http://www.ncbi.nlm.nih.gov/pubmed/1754973

 

Biopsychosocial aspects of chronic fatigue syndrome (myalgic encephalomyelitis)

Abstract:

Fifteen patients, with a primary complaint of chronic fatigue, were referred to a physician by their general practitioners. Psychological distress, measured by simple psychiatric rating scales was common, but specific psychiatric diagnoses, derived from a comprehensive diagnostic interview, occurred less frequently.

One questionnaire (Montgomery-Asberg depression rating scale) found emotional distress in 93%, but the diagnostic instrument (Present State Examination) suggested depressive syndromes in only two patients (13%). There were significant occupational difficulties in 87%. No consistently abnormal indices of biochemical or immunological function were found, nor evidence of acute or chronic infection.

Chronic fatigue syndrome (CFS) is associated with physical, psychological and social distress. The illness cannot be defined using just one of these dimensions. Such a unilateral approach has resulted in unnecessary controversy over the nature of the ‘real’ core of CFS. A problem-oriented approach, recognising the multi-factorial and overlapping cause and effect issues in CFS, may be of more benefit to patients.

 

Source: Yeomans JD, Conway SP. Biopsychosocial aspects of chronic fatigue syndrome (myalgic encephalomyelitis). J Infect. 1991 Nov;23(3):263-9. http://www.ncbi.nlm.nih.gov/pubmed/1753134

 

Evaluation and management of patients with chronic fatigue

Abstract:

Chronic fatigue is a common and disabling problem in primary care practice. The differential diagnosis of chronic fatigue is extensive and includes medical disorders, altered physiologic states (eg, pregnancy, exertion), psychiatric disorders, lifestyle derangements, drugs, and controversial entities (eg, chronic candidiasis, food allergies, environmental illness, and chronic fatigue syndrome). The most common diagnoses are psychiatric disorders, including mood, anxiety, and somatoform disorders.

A comprehensive approach to diagnosis and management is necessary, including structured psychiatric interviewing, functional assessment, and elicitation of the patient’s diagnostic beliefs. Patients often believe they are suffering from an organic medical disorder (eg, viral or immunologic) and resist psychiatric labelling of their symptoms and referral to mental health practitioners. Establishing and maintaining rapport, having a flexible approach, and demonstrating a personal concern for the patient is essential. Drug therapy for specific psychiatric and medical illnesses and cognitive-behavioral approaches for enhancing coping mechanisms are effective.

 

Source: Matthews DA, Manu P, Lane TJ. Evaluation and management of patients with chronic fatigue. Am J Med Sci. 1991 Nov;302(5):269-77. http://www.ncbi.nlm.nih.gov/pubmed/1750445

 

Depression and somatization in the chronic fatigue syndrome

Abstract:

PURPOSE: To report the prevalence, clinical features, and diagnostic associations of the proposed chronic fatigue syndrome (CFS) in a cohort of patients with chronic fatigue and to assess the usefulness of a structured psychiatric interview for detecting previously unrecognized psychiatric morbidity in patients with CFS.

PATIENTS AND METHODS: A consecutive sample of 200 adult patients with a chief complaint of chronic fatigue was prospectively evaluated in a referral-based clinic within a university general medicine practice. All patients received a thorough medical history, physical examination, diagnostic laboratory testing, and portions of the Diagnostic Interview Schedule, version III-A. The criteria for CFS were applied, and patients with CFS were compared with matched control subjects from the inception cohort.

RESULTS: The 60 patients with CFS had similar likelihoods of current psychiatric disorders (78% versus 82%), active mood disorders (73% versus 77%), and preexisting psychiatric disorders (42% versus 43%) when compared with fatigued control subjects. Patients with CFS were more likely to have somatization disorder (p less than 0.001) and to attribute their illness to a physical cause (p less than 0.005) than fatigued controls. Patients with CFS also displayed functional symptoms, often lifelong, which are not part of the case definition of CFS. Depressive features in patients with CFS were similar to those of control subjects, but a trend toward suicidal behavior was noted.

CONCLUSIONS: Patients with CFS have a high prevalence of unrecognized, current psychiatric disorders, which often predate their fatigue syndrome. Assessment of patients with CFS should include a structured psychiatric evaluation.

 

Comment in:

Chronic fatigue syndrome and psychiatric disorders. [Am J Med. 1992]

Chronic fatigue syndrome (CFS) and psychiatric disorders. [Am J Med. 1994]

 

Source: Lane TJ, Manu P, Matthews DA. Depression and somatization in the chronic fatigue syndrome. Am J Med. 1991 Oct;91(4):335-44. http://www.ncbi.nlm.nih.gov/pubmed/1951377

 

An overview of chronic fatigue syndrome

Abstract:

BACKGROUND: Psychological and immunologic factors both appear to contribute to chronic fatigue syndrome (CFS). By comparing CFS with other disorders in which fatigue is a prominent symptom, the association between fatigue, psychological vulnerability, depression, and immune function may be further defined. Recent data from psychological, neurologic, and immunologic studies that address these issues are reviewed.

METHOD: Articles and abstracts covering CFS and related topics of fatigue, depression, and postinfectious syndromes were identified through MEDLINE and Index Medicus (1980-1990) and by bibliographic review of pertinent review articles.

RESULTS: The 1988 definition of CFS by the Centers for Disease Control encompasses several conditions in which the major characteristic is severe fatigue associated with constitutional symptoms. Several studies have identified immune dysfunction in CFS patients, but the specificity of these findings remains unclear. Most studies have shown that CFS patients, compared with other patients with chronic medical illness, experience more disabling fatigue. Some investigators have found a higher incidence of concurrent and past psychiatric illness in CFS patients compared with other medical patients, thereby suggesting an underlying psychopathology in CFS. However, other studies have not found a higher than expected incidence of past depression in CFS patients and have further shown that many CFS patients have no identifiable psychopathology.

CONCLUSION: CFS appears to be a heterogenous entity. Although there may be a high coincidence of major depression in CFS, a substantial proportion of patients lack any identifiable DSM-III-R psychiatric disorder yet still manifest the syndrome, thereby suggesting it has an autonomous entity. Despite the evolving nature of our current understanding of CFS, a rational diagnostic and therapeutic approach to CFS is possible.

 

Comment in: Pathogenesis of chronic fatigue syndrome. [J Clin Psychiatry. 1992]

 

Source: Krupp LB, Mendelson WB, Friedman R. An overview of chronic fatigue syndrome. J Clin Psychiatry. 1991 Oct;52(10):403-10. http://www.ncbi.nlm.nih.gov/pubmed/1938975