ME/CFS Evidence Browser — Classified Studies on Myalgic Encephalomyelitis

341–349 of 349 studies

E3 PreliminaryReviewPEM not requiredReview-Narrative

Autonomic neuropathies.

Low, P A·Current opinion in neurology·1998

This review explores how problems with the autonomic nervous system—the part of your nervous system that controls automatic functions like heart rate and temperature regulation—may play a role in several conditions, including ME/CFS. The author discusses how antibodies (immune proteins) targeting autonomic structures are found in some diseases, and notes that some autonomic problems can be treated with medications like midodrine or erythropoietin.

Autonomic Nervous System

E3 PreliminaryReviewPEM unclearReview-Narrative

The connection between chronic fatigue syndrome and neurally mediated hypotension.

Wilke, W S, Fouad-Tarazi, F M, Cash, J M et al.·Cleveland Clinic journal of medicine·1998

Some ME/CFS patients experience a problem where their blood pressure drops abnormally when they stand up, a condition called neurally mediated hypotension. This review examines research showing that this blood pressure response may be linked to ME/CFS symptoms. Understanding this connection could help explain why some patients feel worse with certain activities and may guide treatment options.

Autonomic Nervous System

E3 PreliminaryMechanismPEM not requiredCross-Sectional

Neurally mediated hypotension and autonomic dysfunction measured by heart rate variability during head-up tilt testing in children with chronic fatigue syndrome.

Stewart, J, Weldon, A, Arlievsky, N et al.·Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1998

This study looked at how the nervous system controls heart rate in children with ME/CFS during a tilt test (where patients lie flat then are gradually tilted upright). Researchers found that children with ME/CFS had much lower heart rate variability—a measure of how well the nervous system adjusts the heart—compared to children who faint from other causes and healthy controls. When tilted, children with ME/CFS did not show the normal nervous system adjustments that other groups showed, suggesting their autonomic nervous system (which controls involuntary functions) may not be working properly.

Autonomic Nervous System

E3 PreliminaryReviewPEM unclearReview-Narrative

Fibromyalgia, chronic fatigue syndrome, and myofascial pain syndrome.

Goldenberg, D L·Current opinion in rheumatology·1997

This review examines three related conditions—fibromyalgia, ME/CFS, and myofascial pain syndrome—and discusses ongoing challenges in diagnosing and treating them. The study found that psychiatric conditions are not a core feature of these diseases, but rather reflect that people with these conditions are more likely to seek medical help. The researchers identified that a blood pressure problem called neurally mediated hypotension may play a role in ME/CFS, and that treating patients in multidisciplinary groups (rather than in isolation) showed more promise than traditional individual treatments.

Autonomic Nervous SystemDiagnostics

E3 PreliminaryReviewPEM not requiredReview-Narrative

Neurotic, neuromuscular and autonomic nervous form of magnesium imbalance.

Durlach, J, Bac, P, Durlach, V et al.·Magnesium research·1997

This review discusses how low magnesium levels in the body can affect the nervous system and cause symptoms like fatigue, muscle twitching, heart palpitations, and breathing problems. The authors describe how magnesium deficiency can mimic or contribute to chronic fatigue syndrome and similar conditions, and they explain tests (like EMG and blood tests) that can help diagnose this problem. They also suggest that taking magnesium supplements by mouth at appropriate doses may help relieve these symptoms.

Autonomic Nervous System

E3 PreliminaryCohortPEM not requiredCase-Control

Possible relationship between chronic fatigue and postural tachycardia syndromes.

De Lorenzo, F, Hargreaves, J, Kakkar, V V·Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1996

This study looked at five people with ME/CFS who experienced symptoms like dizziness, blurred vision, and heart palpitations when standing up. When these patients were tested while lying on a tilting table that slowly moved them upright, researchers found that their blood pressure dropped and heart rate increased significantly. This suggests that some ME/CFS patients may have a condition called postural tachycardia syndrome, which affects how the body manages blood pressure during position changes.

Autonomic Nervous System

E3 PreliminaryReviewPEM unclearReview-Narrative

The pathogenesis of chronic pain and fatigue syndromes, with special reference to fibromyalgia.

Clauw, D J·Medical hypotheses·1995

This paper reviews what doctors and researchers knew in 1995 about fibromyalgia and similar conditions that cause chronic pain and tiredness. The authors noticed that fibromyalgia overlaps significantly with chronic fatigue syndrome, migraines, irritable bowel syndrome, and mood disorders, suggesting these conditions may share common underlying causes rather than being completely separate diseases.

SleepAutonomic Nervous System

E3 PreliminaryCohortPEM requiredCase-Control

Is neurally mediated hypotension an unrecognised cause of chronic fatigue?

Rowe, P C, Bou-Holaigah, I, Kan, J S et al.·Lancet (London, England)·1995

This study looked at whether a condition called neurally mediated hypotension—where blood pressure drops suddenly when standing up—might be causing chronic fatigue in some patients. Researchers tested seven teenagers with severe fatigue using a tilt-table test (which gradually tilts the body upright) and found that all seven experienced significant drops in blood pressure. Four of these patients improved when treated with specific heart medications, suggesting this condition may contribute to some cases of ME/CFS.

Autonomic Nervous System

E3 PreliminaryReviewPEM not requiredReview-Narrative

Testing of vestibular function: an adjunct in the assessment of chronic fatigue syndrome.

Furman, J M·Reviews of infectious diseases·1991

Many people with ME/CFS experience dizziness and balance problems, but doctors don't fully understand why. This study looked at whether problems with the inner ear (the system that helps control balance) might explain these symptoms. The researchers tested the vestibular system—which controls balance and eye movement—using specialized equipment to see if people with ME/CFS had measurable abnormalities in how this system works.

Autonomic Nervous System

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Autonomic neuropathies.

The connection between chronic fatigue syndrome and neurally mediated hypotension.

Neurally mediated hypotension and autonomic dysfunction measured by heart rate variability during head-up tilt testing in children with chronic fatigue syndrome.

Fibromyalgia, chronic fatigue syndrome, and myofascial pain syndrome.

Neurotic, neuromuscular and autonomic nervous form of magnesium imbalance.

Possible relationship between chronic fatigue and postural tachycardia syndromes.

The pathogenesis of chronic pain and fatigue syndromes, with special reference to fibromyalgia.

Is neurally mediated hypotension an unrecognised cause of chronic fatigue?

Testing of vestibular function: an adjunct in the assessment of chronic fatigue syndrome.

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