Does the chronic fatigue syndrome involve the autonomic nervous system?

Abstract:

PURPOSE: To investigate the role of the autonomic nervous system in the symptoms of patients with chronic fatigue syndrome (CFS) and delineate the pathogenesis of the orthostatic Intolerance and predisposition to neurally mediated syncope reported in this patient group.

PATIENTS AND METHODS: Twenty-three CFS patients and controls performed a battery of autonomic function tests. The CFS patients completed questionnaires pertaining to autonomic and CFS symptoms, their level of physical activity, and premorbid and coexisting psychiatric disorders. The relationship between autonomic test results, cardiovascular deconditioning, and psychiatric disorders was examined with multivariate statistics and the evidence that autonomic changes seen in CFS might be secondary to a postviral, idiopathic autonomic neuropathy was explored.

RESULTS: The CFS subjects had a significant increase in baseline (P < 0.01) and maximum heart rate (HR) on standing and tilting (both P < 0.0001). Tests of parasympathetic nervous system function (the expiratory inspiratory ratio, P < 0.005; maximum minus minimum HR difference, P < 0.05), were significantly less in the CFS group as were measures of sympathetic nervous system function (systolic blood pressure decrease with tilting, P < 0.01; diastolic blood pressure decrease with tilting, P < 0.05; and the systolic blood pressure decrease during phase II of a Valsalva maneuver, P < 0.05). Twenty-five percent of CFS subjects had a positive tilt table test. The physical activity index was a significant predictor of autonomic test results (resting, sitting, standing, and tilted HR, P < 0.05 to P < 0.009); and the blood pressure decrease in phase II of the Valvalsa maneuver, P < 0.05) whereas premorbid and coexistent psychiatric conditions were not. The onset of autonomic symptoms occurred within 4 weeks of a viral infection in 46% of patients-a temporal pattern that is consistent with a postviral, idiopathic autonomic neuropathy.

CONCLUSION: Patients with CFS show alterations in measures of sympathetic and parasympathetic nervous system function. These results, which provide the physiological basis for the orthostatic intolerance and other symptoms of autonomic function in this patient group, may be explained by cardiovascular deconditioning, a postviral idiopathic autonomic neuropathy, or both.

 

Source: Freeman R, Komaroff AL. Does the chronic fatigue syndrome involve the autonomic nervous system? Am J Med. 1997 Apr;102(4):357-64. http://www.ncbi.nlm.nih.gov/pubmed/9217617

 

A view of the violence contained in chronic fatigue syndrome

Abstract:

In this paper I ask whether there might be any one particular psychopathology likely to be linked specifically with the physical illness known as chronic fatigue syndrome (CFS) or myalgic encephalomyelitis (ME), and whether CFS/ME aids and abets and “fits’ an original mental state. I think the question cannot yet be answered.

However it is my hypothesis that in some personality structures the onset of CFS/ ME following a physical illness exacerbates negativity and is an aspect of ordinary depression where there is a lowering of energy levels and a loss of zest for life, or it may reveal the pathological aspect of unresolved rage. Depending on the degree of pathological disturbance, working with and through the rage may or may not result in a resolution of the symptoms of ME.

In this paper I consider some of the problems in the transference and countertransference relationship, which make it extremely difficult to separate out reality from phantasy. There is then the further problem of the denial of the psyche by the patient as part of the violence inherent in the illness. One case is presented, an example of ME in a borderline male patient in whom resolution could not be achieved.

 

Source: Bennett A. A view of the violence contained in chronic fatigue syndrome. J Anal Psychol. 1997 Apr;42(2):237-51. http://www.ncbi.nlm.nih.gov/pubmed/9161123

 

Coniunctio–in bodily and psychic modes: dissociation, devitalization and integration in a case of chronic fatigue syndrome

Abstract:

Three years of analytical psychotherapy with a professional woman in mid-life, suffering from chronic fatigue syndrome (CFS), is described. Gradual recovery merged into mid-life changes; marriage, along with a new balance of maternal and paternal imagos, enabled her to trust enough to become pregnant-coniunctio in the most primal bodily and psychic modes. Her life-long, schizoid type pattern, “the pendulum of closeness and isolation’, with its extreme of psycho-physical collapse and devitalization, was replayed in therapy.

The analyst’s symbolic attitude is emphasized, containing the patient’s initial affective explosion and validating the physicality of her condition. Mirroring and steady rhythmic attunement became a new, pre-verbal, source of trust-vitalization; differentiation and separation replaced defensive splitting and dissociation. Then the overwhelmingly powerful bodily/maternal could be counterbalanced by the masculine, and a transitional space emerged for symbolic work. Both the regressive and the dynamic aspects of CFS are located in the earliest undifferentiated, archetypal, bodily/psychic modes, when the frustration of primary needs evokes the defences of the self.

It is argued that our psychodynamic understanding can contribute to the stalemate in seeing chronic fatigue syndrome as either an organic illness or depression, and that a new linking of the somatic and psychic calls for a new professional collaboration.

 

Source: Holland P. Coniunctio–in bodily and psychic modes: dissociation, devitalization and integration in a case of chronic fatigue syndrome. J Anal Psychol. 1997 Apr;42(2):217-36. http://www.ncbi.nlm.nih.gov/pubmed/9161122

A body with chronic fatigue syndrome as a battleground for the fight to separate from the mother

Abstract:

I describe the therapy of a 20-year-old women who believed that her difficulties in concentrating and remembering were caused by her “ME’ (Myalgic encephalomyelitis, Chronic fatigue syndrome, or CFS). She had been fathered by a man who never left his own wife. Work with her dreams revealed a within-body drama in which she was locked in an unspeakable fight to the death with her mother. Her symptoms improved after parallels between a dream and an accident showed her own self-destructive hand in her story.

Another dream, reflecting her first ‘incestuous’ affair, showed her search for her original father-self as someone separate from mother, and a later affair provided a between-body drama, helping her to own the arrogant and abject traits she had before seen only as her mother’s. I show how we worked in the area of Winnicott’s first ‘primitive agony’ as experienced by a somatizing patient, stuck in a too-close destructive relationship with her mother-body. I discuss how analytical work can be done with the primitive affects and conflicts against which the ME symptoms may be defending.

 

Source: Simpson M. A body with chronic fatigue syndrome as a battleground for the fight to separate from the mother. J Anal Psychol. 1997 Apr;42(2):201-16. http://www.ncbi.nlm.nih.gov/pubmed/9161121

 

Chronic fatigue syndrome/myalgic encephalomyelitis as a twentieth-century disease: analytic challenges

Abstract:

The challenges of chronic fatigue syndrome (often called myalgic encephalomyelitis, especially in the UK) (CFS/ME) to analytical and medical approaches are connected with our inability to understand its distressing somatic symptoms in terms of a single identifiable and understandable disease entity. The evidence for the roles of viral aetiologies remains inconclusive, as does our understanding of the involvement of the immune system.

The history and social context of CFS/ME, and its relation to neurasthenia and psychasthenia are sketched. A symbolic attitude to the condition may need to be rooted in an awareness of psychoid levels of operation, and the expression and spread of CFS/ME may sometimes be aided by the ravages of projective identification. Psychic denial, sometimes violent, in sufferers (especially children and adolescents) and their families may be important in the aetiology of CFS/ME. We draw out common threads from psychodynamic work with five cases, four showing some symptomatic improvement, analytic discussions of three cases being presented elsewhere in this issue of JAP.

 

Source: Simpson M, Bennett A, Holland P. Chronic fatigue syndrome/myalgic encephalomyelitis as a twentieth-century disease: analytic challenges. J Anal Psychol. 1997 Apr;42(2):191-9. http://www.ncbi.nlm.nih.gov/pubmed/9161120

 

Physical fatigability and exercise capacity in chronic fatigue syndrome: association with disability, somatization and psychopathology

Abstract:

Physical fatigability and avoidance of physically demanding tasks in chronic fatigue syndrome (CFS) were assessed by the achievement or nonachievement of 85% of age-predicted maximal heart rate (target heart rate, THR) during incremental exercise. The association with functional status impairment, somatization, and psychopathology was examined.

A statistically significant association was demonstrated between this physical fatigability variable and impairment, and a trend was found for an association with somatization. No association was demonstrated with psychopathology. These results are in accordance with the cognitive-behavioral model of CFS, suggesting a major contribution of avoidance behavior to functional status impairment; however, neither anxiety nor depression seem to be involved in the avoidance behavior.

Aerobic work capacity was compared between CFS and healthy controls achieving THR. Physical deconditioning with early involvement of anaerobic metabolism was demonstrated in this CFS subgroup.

Half of the CFS patients who did not achieve THR did not reach the anaerobic threshold. This finding argues against an association in CFS between avoidance of physically demanding tasks and early anaerobic metabolism during effort.

 

Source: Fischler B, Dendale P, Michiels V, Cluydts R, Kaufman L, De Meirleir K. Physical fatigability and exercise capacity in chronic fatigue syndrome: association with disability, somatization and psychopathology. J Psychosom Res. 1997 Apr;42(4):369-78. http://www.ncbi.nlm.nih.gov/pubmed/9160276

 

Chronic fatigue syndrome–aetiological aspects

Abstract:

The chronic fatigue syndrome (CFS) has been intensively studied over the last 40 years, but no conclusions have yet been agreed as to its cause. Most cases nowadays are sporadic. In the established chronic condition there are no consistently abnormal physical signs or abnormalities on laboratory investigation.

Many physicians remain convinced that the symptoms are psychological rather than physical in origin. This view is reinforced by the emotional way in which many patients present themselves. The overlap of symptoms between CFS and depression remains a source of confusion and difficulty. But even if all CFS patients were rediagnosed as depressives, this would not negate the possibility of an underlying organic cause for the condition, in view of the growing evidence that depression itself has a physical cause and responds best to physical treatments.

There is some evidence both for active viral infection and for an immunological disorder in the CFS. Many observations suggest that the syndrome could derive from residual damage to the reticular activating system (RAS) of the upper brain stem and/or to its cortical projections. Such damage could be produced by a previous viral infection, leaving functional defects unaccompanied by any gross histological changes.

In animal experiments activation of the RAS can change sleep state and activate or stimulate cortical functions. RAS lesions can produce somnolence and apathy. Studies by modern imaging techniques have not been entirely consistent, but many magnetic resonance imaging (MRI) studies already suggest that small discrete patchy brain stem and subcortical lesions can often be seen in CFS.

Regional blood flow studies by single photon-emission computerized tomography (SPECT) have been more consistent. They have revealed blood flow reductions in many regions, especially in the hind brain. Similar lesions have been reported after poliomyelitis and in multiple sclerosis–in both of which conditions chronic fatigue is characteristically present. In the well-known post-polio fatigue syndrome, lesions predominate in the RAS of the brain stem. If similar underlying lesions in the RAS can eventually be identified in CFS, the therapeutic target for CFS would be better defined than it is at present. A number of logical approaches to treatment can already be envisaged.

Comment in:

Chronic fatigue syndrome. [Eur J Clin Invest. 1997]

Similarity of symptoms in chronic fatigue syndrome and Addison’s disease. [Eur J Clin Invest. 1997]

 

Source: Dickinson CJ. Chronic fatigue syndrome–aetiological aspects. Eur J Clin Invest. 1997 Apr;27(4):257-67. http://www.ncbi.nlm.nih.gov/pubmed/9134372

 

Patterns of utilization of medical care and perceptions of the relationship between doctor and patient with chronic illness including chronic fatigue syndrome

Abstract:

To what extent do personal constructs affect the relationship between doctor and patient when the ill patient does not readily recover with treatment?

Questionnaires were returned anonymously by 609 patients with a self-reported diagnosis of chronic fatigue syndrome, who were considered chronically ill. Findings were compared with those of an earlier study of a population of 397 general medical patients.

The chronically ill patients lost an average of 65 days of work per year due to illness compared to general medical patients who missed six or fewer days per year because they were ill. The chronically ill patients also reported a 66% higher frequency of iatrogenic illness, spent more money on health care, took more medication, saw more specialists, and were more litigious than the general medical population.

Research suggested several patterns of relationships between doctors and patients, and attitudes to health and illness, which may alert doctors to patients’ perceptions, beliefs, encoded constructs, and patterns of relating that affect responses to treatment. More attention by doctors to patients who are experiencing the stress of chronic illness is indicated.

 

Source: Twemlow SW, Bradshaw SL Jr, Coyne L, Lerma BH. Patterns of utilization of medical care and perceptions of the relationship between doctor and patient with chronic illness including chronic fatigue syndrome. Psychol Rep. 1997 Apr;80(2):643-58. http://www.ncbi.nlm.nih.gov/pubmed/9129381

 

Profile of patients with chemical injury and sensitivity

Abstract:

Patients reporting sensitivity to multiple chemicals at levels usually tolerated by the healthy population were administered standardized questionnaires to evaluate their symptoms and the exposures that aggravated these symptoms. Many patients were referred for medical tests. It is thought that patients with chemical sensitivity have organ abnormalities involving the liver, nervous system (brain, including limbic, peripheral, autonomic), immune system, and porphyrin metabolism, probably reflecting chemical injury to these systems.

Laboratory results are not consistent with a psychologic origin of chemical sensitivity. Substantial overlap between chemical sensitivity, fibromyalgia, and chronic fatigue syndrome exists: the latter two conditions often involve chemical sensitivity and may even be the same disorder. Other disorders commonly seen in chemical sensitivity patients include headache (often migraine), chronic fatigue, musculoskeletal aching, chronic respiratory inflammation (rhinitis, sinusitis, laryngitis, asthma), attention deficit, and hyperactivity (affected younger children). Less common disorders include tremor, seizures, and mitral valve prolapse.

Patients with these overlapping disorders should be evaluated for chemical sensitivity and excluded from control groups in future research. Agents whose exposures are associated with symptoms and suspected of causing onset of chemical sensitivity with chronic illness include gasoline, kerosene, natural gas, pesticides (especially chlordane and chlorpyrifos), solvents, new carpet and other renovation materials, adhesives/glues, fiberglass, carbonless copy paper, fabric softener, formaldehyde and glutaraldehyde, carpet shampoos (lauryl sulfate) and other cleaning agents, isocyanates, combustion products (poorly vented gas heaters, overheated batteries), and medications (dinitrochlorobenzene for warts, intranasally packed neosynephrine, prolonged antibiotics, and general anesthesia with petrochemicals).

Multiple mechanisms of chemical injury that magnify response to exposures in chemically sensitive patients can include neurogenic inflammation (respiratory, gastrointestinal, genitourinary), kindling and time-dependent sensitization (neurologic), impaired porphyrin metabolism (multiple organs), and immune activation.

 

Source: Ziem G, McTamney J. Profile of patients with chemical injury and sensitivity. Environ Health Perspect. 1997 Mar;105 Suppl 2:417-36. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1469804/  (Full article)

 

Fibromyalgia, chronic fatigue syndrome, and myofascial pain syndrome

Abstract:

The diagnosis of fibromyalgia continues to generate heated debate. The presence of multiple lifetime psychiatric diagnoses was not intrinsically related to fibromyalgia but rather to the decision of patients to seek specialty medical care. Better outcome measures in fibromyalgia were tested. Neurally mediated hypotension may be associated with chronic fatigue syndrome (CFS). Treatment of patients with fibromyalgia and CFS continues to be of limited success, although the role of multidisciplinary group intervention appears promising. Two position papers focused on the adverse aspects of the medicolegal issues in fibromyalgia and CFS.

 

Source: Goldenberg DL. Fibromyalgia, chronic fatigue syndrome, and myofascial pain syndrome. Curr Opin Rheumatol. 1997 Mar;9(2):135-43. http://www.ncbi.nlm.nih.gov/pubmed/9135918