A comparison of cognitive behavioral treatment for chronic fatigue syndrome and primary depression

Abstract:

To evaluate the effect of cognitive behavioral intervention on chronic fatigue syndrome (CFS), we studied three patient groups: a CFS-treatment group (n = 22), a primary depression-treatment group (n = 20), and a no-treatment control group of subjects with CFS (n = 22). For the CFS-treatment group, a trend toward reduced depression-symptom scores was noted, but there were no significant changes in stress-related symptoms or fatigue severity.

For the most depressed treated subjects with CFS, significant score reductions were observed in measures of depression, stress, fatigue severity, and fatigue-related thinking. In the depression group, significant reductions in depression, stress, and fatigue severity scores were found. No significant changes in any measure were observed in the CFS control group.

A new fatigue-related cognitions scale, developed to assess cognitive and emotional reactions to fatigue, showed a significant reduction in such reactions in the CFS-treatment group, a finding suggesting that depression in this group was mediated by maladaptive thinking. The results suggest that a subset of CFS patients with cognition-related depressive symptomatology may respond to short-term behavioral intervention.

Comment in: Cognitive behavioral therapy for chronic fatigue syndrome. [Clin Infect Dis. 1995]

 

Source: Friedberg F, Krupp LB. A comparison of cognitive behavioral treatment for chronic fatigue syndrome and primary depression. Clin Infect Dis. 1994 Jan;18 Suppl 1:S105-10. http://www.ncbi.nlm.nih.gov/pubmed/8148435

 

Breathing retraining: effect on anxiety and depression scores in behavioural breathlessness

Abstract:

Thirty-six patients underwent assessment of behavioural breathlessness which included monitoring of breathing patterns and end tidal CO2 concentration and completion of questionnaires relating to hyperventilation (HV), anxiety and depression. Twenty-two patients had a positive assessment and underwent breathing retraining. Assessments were repeated immediately after re-training and 2 months later. Ten of the patients (Group A) had behavioural breathlessness either as the primary problem or secondary to an established clinical condition, and twelve (Group B) in association with chronic fatigue.

Before re-training, resting end-tidal PCO2 was significantly lower in Group A than Group B (p < 0.05), but there was no significant difference in mean scores for HV-related symptoms, anxiety or depression. Following breathing retraining, both groups showed improvements in breathing patterns, end tidal CO2 levels and scores for HV-related symptoms which were sustained. In Group A the mean score for anxiety decreased (p < 0.01) and the score for depression was significantly lower than in Group B (p < 0.05). Although mean scores for anxiety and depression in Group B did not change significantly, some individuals in the group did show sustained improvement.

There was no improvement in symptoms associated with chronic fatigue in Group B. In behavioural breathlessness, breathing retraining is of benefit, not only in restoring more normal patterns of breathing but also in reducing anxiety, particularly in patients without the complication of chronic fatigue.

 

Source: Tweeddale PM, Rowbottom I, McHardy GJ. Breathing retraining: effect on anxiety and depression scores in behavioural breathlessness. J Psychosom Res. 1994 Jan;38(1):11-21. http://www.ncbi.nlm.nih.gov/pubmed/8126685

 

Seasonal symptom variation in patients with chronic fatigue: comparison with major mood disorders

Abstract:

The psychobiology of idiopathic fatigue has received renewed interest in the medical literature in recent years. In order to examine the relation between chronic, idiopathic fatigue and specific subtypes of depressive illness, we characterized the pattern and severity of seasonal symptom variation in 73 patients with chronic, idiopathic fatigue, compared to patients with major depression (n = 55), atypical depression (n = 35), and seasonal affective disorder (n = 16) Fifty of the fatigued subjects also met the specific Centers for Disease Control and Prevention case criteria for chronic fatigue syndrome, though this definition was unable to discriminate a distinct subgroup of patients, based on their seasonality scores alone. As a group, the fatigued subjects reported the lowest levels of symptom seasonality of any of the study groups. Further, even in those fatigued subjects with scores in the range of those seen in patients with seasonal affective disorder, seasonality was not reported to be a subjectively distressing problem. These findings lend support to the idea that although chronic fatigue shares some clinical features with certain mood disorders, they are not the same illnesses. These data are also consistent with the emerging view that chronic fatigue represents a heterogeneously determined clinical condition.

 

Source: Zubieta JK, Engleberg NC, Yargiç LI, Pande AC, Demitrack MA. Seasonal symptom variation in patients with chronic fatigue: comparison with major mood disorders. J Psychiatr Res. 1994 Jan-Feb;28(1):13-22. http://www.ncbi.nlm.nih.gov/pubmed/8064638

 

The chronic fatigue syndrome

Abstract:

The chronic fatigue syndrome (CFS) including myalgic encephalomyelitis and the postviral syndrome is a term used today to describe a not fully recognized disease characterized primarily by chronic or recurrent debilitating fatigue and various combinations of neuromuscular and neuropsychological symptoms. The term CFS has been introduced and defined by the Centers for Disease Control (CDC) in Atlanta. Fatigue is one of the most common symptoms in medicine, but CFS as defined by CDC has appeared to be quite rare in the general population. Researchers have suggested that the syndrome is a heterogenous immunologic disorder that follows viral infection, but despite numerous studies on the subject the etiologic factor of the syndrome is unknown. CFS is a controversial diagnosis. In a very high percentage of patients with the CFS depression, phobias or anxiety disorders have frequently preceded the onset of the chronic fatigue. There are many overlapping symptoms between CFS and major depression. Some clinicians suggest that it is not obvious that CFS can be distinguished from neurasthenia.

 

Source: Białyszewski A. [The chronic fatigue syndrome]. Psychiatr Pol. 1993 Nov-Dec;27(6):601-11 [Article in Polish] http://www.ncbi.nlm.nih.gov/pubmed/8134494

 

A brief mental fatigue questionnaire

Abstract:

A brief mental fatigue questionnaire was administered to normal subjects and muscle-diseased, Chronic Fatigue Syndrome (CFS), recovered CFS and depressed patients. The questionnaire was found to have excellent internal consistency and discriminated effectively between CFS and depressed patients on the one hand and recovered CFS, normal and muscle-diseased patients on the other. However, the scale failed to discriminate between CFS and depressed subjects, who were found to experience qualitatively and quantitatively similar mental fatigue symptoms.

 

Source: Bentall RP, Wood GC, Marrinan T, Deans C, Edwards RH. A brief mental fatigue questionnaire. Br J Clin Psychol. 1993 Sep;32 ( Pt 3):375-9. http://www.ncbi.nlm.nih.gov/pubmed/7902751

 

Behavioural problems associated with the chronic fatigue syndrome

Abstract:

Disturbances of memory, concentration and motor function are often reported by patients with the chronic fatigue syndrome (CFS). The present study objectively evaluated these behavioural problems using a computerized test battery measuring memory, attention and motor skills.

Fifty-seven CFS patients were compared with 19 matched controls and all subjects completed the performance test battery and filled in questionnaires measuring psychopathology and mood. The patients reported significantly higher levels of depression, anxiety, physical symptoms and cognitive failures than the controls. Similarly, they reported more negative affect at the time of testing.

The patients were slower on psychomotor tasks, showed increased visual sensitivity and impaired attention. Digit span and free recall were not impaired but retrieval from semantic memory and logical reasoning were slower. None of the performance differences between patients and controls could be attributed to differences in psychopathology. These results agree with recent findings from other laboratories, and it is now time to consider the nature of the neurological dysfunction underlying these effects.

 

Source: Smith AP, Behan PO, Bell W, Millar K, Bakheit M. Behavioural problems associated with the chronic fatigue syndrome. Br J Psychol. 1993 Aug;84 ( Pt 3):411-23. http://www.ncbi.nlm.nih.gov/pubmed/8401992

 

Ways of coping with chronic fatigue syndrome: development of an illness management questionnaire

Abstract:

Chronic fatigue syndrome (CFS) is a disorder of uncertain aetiology, and there is uncertainty also about the appropriate way in which patients should manage the illness. An illness management questionnaire (IMQ) was designed to assess coping in CFS. This was completed by 207 patients, in parallel with the COPE scales (a general measure of coping that can be applied situationally), and measures of functional impairment, anxiety and depression.

The IMQ yielded four factors: maintaining activity, accommodating to the illness, focusing on symptoms and information-seeking. Scales based upon these factors together predicted 26, 27 and 22% of the variance in functional impairment, anxiety and depression, respectively, and each scale had significant relationships with relevant scales of the COPE, supporting the interpretation of the factors. It is suggested that the IMQ may be employed to relate ways of coping to outcomes in CFS, and to assess coping as a mediator of change in cognitive-behavioural interventions.

 

Source: Ray C, Weir W, Stewart D, Miller P, Hyde G. Ways of coping with chronic fatigue syndrome: development of an illness management questionnaire. Soc Sci Med. 1993 Aug;37(3):385-91. http://www.ncbi.nlm.nih.gov/pubmed/8356486

 

Cognitive impairment in patients with chronic fatigue: a preliminary study

Erratum in: J Neurol Neurosurg Psychiatry 1993 Oct;56(10):1142

Abstract:

Subjective impairment of memory and concentration is a frequent complaint in sufferers from chronic fatigue. To study this, 65 general practice attenders identified as having chronic fatigue were administered a structured psychiatric interview and a brief screening battery of cognitive tests.

Subjective cognitive impairment was strongly related to psychiatric disorder, especially depressed mood, but not fatigue, anxiety, or objective performance. Simple tests of attention and concentration showed some impairment but this was influenced by both fatigue and depression.

Subjects with high levels of fatigue performed less well on a memory task requiring cognitive effort, even in the absence of depression. There was no evidence for mental fatiguability. The relationship between depression, fatigue, and cognitive function requires further research.

 

Source: McDonald E, Cope H, David A. Cognitive impairment in patients with chronic fatigue: a preliminary study. J Neurol Neurosurg Psychiatry. 1993 Jul;56(7):812-5. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1015065/ (Full article)

 

Abnormalities of sleep in patients with the chronic fatigue syndrome

Abstract:

OBJECTIVE: To determine whether patients with the chronic fatigue syndrome have abnormalities of sleep which may contribute to daytime fatigue.

DESIGN: A case-control study of the sleep of patients with the chronic fatigue syndrome and that of healthy volunteers.

SETTING: An infectious disease outpatient clinic and subjects’ homes.

SUBJECTS: 12 patients who met research criteria for the chronic fatigue syndrome but not for major depressive disorder and 12 healthy controls matched for age, sex, and weight.

MAIN OUTCOME MEASURES: Subjective reports of sleep from patients’ diaries and measurement of sleep patterns by polysomnography. Subjects’ anxiety, depression, and functional impairment were assessed by interview.

RESULTS: Patients with the chronic fatigue syndrome spent more time in bed than controls (544 min v 465 min, p < 0.001) but slept less efficiently (90% v 96%, p < 0.05) and spent more time awake after initially going to sleep (31.9 min v 16.6 min, p < 0.05). Seven patients with the chronic fatigue syndrome had a sleep disorder (four had difficulty maintaining sleep, one had difficulty getting to sleep, one had difficulty in both initiating and maintaining sleep, and one had hypersomnia) compared with none of the controls (p = 0.003). Those with sleep disorders showed greater functional impairment than the remaining five patients (score on general health survey 50.4% v 70.4%, p < 0.05), but their psychiatric scores were not significantly different.

CONCLUSIONS: Most patients with the chronic fatigue syndrome had sleep disorders, which are likely to contribute to daytime fatigue. Sleep disorders may be important in the aetiology of the syndrome.

 

Source: Morriss R, Sharpe M, Sharpley AL, Cowen PJ, Hawton K, Morris J. Abnormalities of sleep in patients with the chronic fatigue syndrome. BMJ. 1993 May 1;306(6886):1161-4. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1677618/ (Full article)

 

Chronic fatigue syndrome: a critical review

Abstract:

The term “chronic fatigue syndrome” (CFS) applies to a condition of unknown aetiology characterized clinically by an association of subjective symptoms, the most constant being an invalidating tiredness. The diagnostic criteria in current use do not permit to isolate an homogeneous subgroup among patients consulting for chronic asthenia.

In the present state of research no infectious or immunological cause has been demonstrated conclusively, although a persistent enterovirus or herpesvirus type 6 infection or a state of chronic immune activation seem to play a role in some cases. Patients who fulfill the criteria of CFS present with psychiatric overmorbidity, essentially depressive, and in 50% of the cases with the mental disorders preceding CFS. The various theoretical models linking CFS to psychopathology are discussed, and finally the syndrome is regarded as a social construction reproducing or renovating the neurasthenia of the late 19th century.

There is no specific treatment of CFS, but antidepressants, cognitive-behavioural therapy and perhaps certain immuno-modulators can be useful. The future lines of research should endeavour to isolate a subgroup of patients with prolonged asthenia after a recognized episode of infection and to identify the immunological, psychological and behavioral characteristics of this particular group as well as their reciprocal interactions.

 

Source: Cathébras P, Bouchou K, Charmion S, Rousset H. Chronic fatigue syndrome: a critical review. Rev Med Interne. 1993 Apr;14(4):233-42. [Article in French] http://www.ncbi.nlm.nih.gov/pubmed/8378654