Treatments of chronic fatigue syndrome and its debilitating comorbidities: a 12-year population-based study

Abstract:

Background: This study aims to provide 12-year nationwide epidemiology data to investigate the epidemiology and comorbidities of and therapeutic options for chronic fatigue syndrome (CFS) by analyzing the National Health Insurance Research Database.

Methods: 6306 patients identified as having CFS during the 2000-2012 period and 6306 controls (with similar distributions of age and sex) were analyzed.

Result: The patients with CFS were predominantly female and aged 35-64 years in Taiwan and presented a higher proportion of depression, anxiety disorder, insomnia, Crohn’s disease, ulcerative colitis, renal disease, type 2 diabetes, gout, dyslipidemia, rheumatoid arthritis, Sjogren syndrome, and herpes zoster. The use of selective serotonin receptor inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), Serotonin antagonist and reuptake inhibitors (SARIs), Tricyclic antidepressants (TCAs), benzodiazepine (BZD), Norepinephrine-dopamine reuptake inhibitors (NDRIs), muscle relaxants, analgesic drugs, psychotherapies, and exercise therapies was prescribed significantly more frequently in the CFS cohort than in the control group.

Conclusion: This large national study shared the mainstream therapies of CFS in Taiwan, we noticed these treatments reported effective to relieve symptoms in previous studies. Furthermore, our findings indicate that clinicians should have a heightened awareness of the comorbidities of CFS, especially in psychiatric problems.

Source: Leong KH, Yip HT, Kuo CF, Tsai SY. Treatments of chronic fatigue syndrome and its debilitating comorbidities: a 12-year population-based study. J Transl Med. 2022 Jun 11;20(1):268. doi: 10.1186/s12967-022-03461-0. PMID: 35690765. https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-022-03461-0  (Full study)

Therapeutic Implications of the Microbial Hypothesis of Mental Illness

Abstract:

There is increasingly compelling evidence that microorganisms may play an etiological role in the emergence of mental illness in a subset of the population. Historically, most work has focused on the neurotrophic herpesviruses, herpes simplex virus type 1 (HSV-1), cytomegalovirus (CMV), and Epstein-Barr virus (EBV) as well as the protozoan, Toxoplasma gondii. In this chapter, we provide an umbrella review of this literature and additionally highlight prospective studies that allow more mechanistic conclusions to be drawn.

Next, we focus on clinical trials of anti-microbial medications for the treatment of psychiatric disorders. We critically evaluate six trials that tested the impact of anti-herpes medications on inflammatory outcomes in the context of a medical disorder, nine clinical trials utilizing anti-herpetic medications for the treatment of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or schizophrenia, and four clinical trials utilizing anti-parasitic medications for the treatment of schizophrenia.

We then turn our attention to evidence for a gut dysbiosis and altered microbiome in psychiatric disorders, and the potential therapeutic effects of probiotics, including an analysis of more than 10 randomized controlled trials of probiotics in the context of schizophrenia, bipolar disorder (BD), and major depressive disorder (MDD).

Source: Savitz J, Yolken RH. Therapeutic Implications of the Microbial Hypothesis of Mental Illness. Curr Top Behav Neurosci. 2022 May 24. doi: 10.1007/7854_2022_368. Epub ahead of print. PMID: 35606640. https://pubmed.ncbi.nlm.nih.gov/35606640/

Functional neurological disorder and other unexplained syndromes

Abstract:

Functional neurological disorder is a syndrome of medically unexplained neurological symptoms. In The Lancet Neurology, Mark Hallett and colleagues review some of the potential explanations for functional neurological disorder and the evidence that supports these explanations.

The paper by Hallett and colleagues, however, is more than a Review: it is also a territorial claim, seeking to expand the boundaries of what should be considered functional neurological disorder. The details of this claim are unlikely to be controversial to any clinician working in the field: the presentations Hallett and colleagues describe are not new, even if they do not fall within the current classifications of the disorder. But the claim is nonetheless remarkable, as even a decade ago it would have been thought to be sheer folly. A good argument could then have been made that functional neurological disorder (or conversion disorder, as it was more formally known) was the most stigmatised of all disorders, even compared with other unexplained syndromes. What would have been the point of expanding the scope of a diagnosis that patients went to such lengths to avoid?

The expansive mood in the Review by Hallett and colleagues therefore reflects a striking transformation in the status of functional neurological disorder. Functional neurological disorder has become a diagnosis that a neurologist might be comfortable to give, and that a patient might be glad to receive.

Source: Kanaan, RA . Functional neurological disorder and other unexplained syndromes. The Lancet- Neurology 21 (6):499-500. https://www.thelancet.com/journals/laneur/article/PIIS1474-4422(22)00095-3/fulltext

NICE sets out steps NHS must take to implement ME/CFS guidelines

Abstract:

The National Institute for Health and Care Excellence has issued an unprecedented implementation statement setting out the practical steps needed for its updated guideline on the diagnosis and management of myalgic encephalomyelitis (or encephalopathy)/chronic fatigue syndrome (ME/CFS) to be implemented by the NHS.

Such statements are only issued when a guideline is expected to have a “substantial” impact on NHS resources, and this is thought to be the first. It outlines the additional infrastructure and training that will be needed in both secondary and primary care to ensure that the updated ME/CFS guideline, published in October 2021, can be implemented.

The statement is necessary because the 2021 guideline completely reversed the original 2007 guideline recommendations that people with mild or moderate ME/CFS be treated with cognitive behavioural therapy (CBT) and graded exercise therapy (GET). Instead, the 2021 guideline says that CBT should be only offered to support patients to manage their symptoms and that any exercise programme should be overseen by an ME/CFS specialist team.

Many areas have no or very limited specialist ME/CFS services, meaning that services must be commissioned, specialist health professionals need to be trained to deliver these services, and GPs need training in how to care for their patients. “With no nationally commissioned service for ME/CFS in either primary or secondary care, it will be for local systems to determine how to structure their services to achieve the aims of the guideline,” said Paul Chrisp, director of the Centre for Guidelines at NICE.

The 2007 recommendations were overturned during a long and difficult guideline development process. Patient groups had long argued that the recommendations were inappropriate, ineffective, and potentially harmful, and hindered research into the disease. But health professionals raised concerns about the proposed guidelines and the process that underpinned them. Just weeks before the final guideline was due to be published three members of the development committee resigned, royal colleges and other professional bodies signalled that they would not support it, and NICE had to delay publication. The guideline was finally published after a meeting was arranged with stakeholders to iron out differences, but concerns among medical leaders persisted.

When the 2021 guideline was published, Charles Shepherd, honorary medical adviser of the ME Association, told The BMJ that the recommendations were “something that currently cannot be coped with.” After publication of the implementation statement, he said, “I think NICE have gone as far as they can. It is now up to individual clinical services to reposition what they do in order to comply with the recommendations and for commissioners to start setting up new clinical services where none currently exist—especially in Wales and Northern Ireland.

“A lot of people with ME/CFS are clearly not getting the medical care and support that they need in both primary care and secondary care, especially those who are severely affected and do not have access to any form of domiciliary service or a dedicated inpatient facility.” He added: “It would obviously be helpful if the royal colleges could also express their support for implementation of the changes, as it’s not clear whether they remain unhappy with the recommendations downgrading CBT and the removal of GET.”

The same day NICE published its implementation statement, Sajid Javid, health and social care secretary, announced the publication of research priorities for ME/CFS by Action for ME, a charity that supports people with ME.  “We are committed to funding research into this important area,” he said. Javid and his chief scientific adviser, Lucy Chappell, will co-chair an advisory board of experts on ME/CFS, including patients, to discuss what needs to happen next and liaise with the devolved nations.

“We will be developing our own delivery plan later this year and will be working with stakeholders to understand how we can improve experiences and outcomes for people with these debilitating conditions,” he said. “At the heart of the delivery plan will be two core principles. Firstly, that we do not know enough about ME/CFS, which must change if we are to improve experiences and outcomes. Secondly, we must trust and listen to those with lived experience of ME/CFS.”

The BMJ asked three royal colleges for a response to the implementation statement, but none responded before publication.

Source: Ingrid Torjesen. NICE sets out steps NHS must take to implement ME/CFS guidelines. BMJ 2022;377:o1221. https://www.bmj.com/content/377/bmj.o1221

The Updated NICE Guidance Exposed the Serious Flaws in CBT and Graded Exercise Therapy Trials for ME/CFS

The British National Institute for Health and Care Excellence (NICE) recently published its updated guidelines for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). NICE concluded, after an extensive review of the literature, that graded exercise therapy (GET) is harmful and should not be used, and that cognitive behavioural therapy (CBT) is only an adjunctive and not a curative treatment. Leading proponents of the cognitive behavioural model (CBmodel) find it difficult to accept this paradigm shift.
In, for example, an article in The Lancet, they try to argue that the new NICE guideline is based on ideology instead of science. In this article we reviewed the evidence they used to support their claims. Our analysis shows that the trials they used in support suffered from serious flaws which included badly designed control groups, relying on subjective primary outcomes in non-blinded studies, including patients in their trials who didn’t have the disease under investigation or had a self-limiting disease, selective reporting, outcome switching and making extensive endpoint changes, which created an overlap in entry and recovery criteria, using a post-hoc definition of recovery which included the severely ill, not publishing results that contradict their own conclusion, ignoring their own (objective) null effect, etc.
The flaws in these trials all created a bias in favour of the interventions. Despite all these flaws, treatments that are said to lead to recovery in reality do not lead to objective improvement. Therefore, these studies do not support the claim that CBT and GET are effective treatments. Moreover, the arguments that are used to claim that NICE was wrong, in reality, highlight the absence of evidence for the safety and efficacy of CBT and GET and strengthen the decision by NICE to drop CBT and GET as curative treatments for ME/CFS.
Source: Vink M, Vink-Niese A. The Updated NICE Guidance Exposed the Serious Flaws in CBT and Graded Exercise Therapy Trials for ME/CFS. Healthcare. 2022; 10(5):898. https://doi.org/10.3390/healthcare10050898 https://www.mdpi.com/2227-9032/10/5/898/htm (Full text)

Impact of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) on the quality of life of people with ME/CFS and their partners and family members: an online cross-sectional survey

Abstract:

Objectives: The aim of this study was to assess the impact of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) on the quality of life (QoL) of people with ME/CFS and their relative or partner (family member).

Design: A patient-partner, multinational, subject-initiated, cross-sectional online survey.

Setting: International survey using ME/CFS charities, support groups and social media.

Participants: Participants were self-selected with recruitment via social media. Inclusion criteria were aged 18 years or over and reported diagnosis of ME/CFS by health professional. 1418 people with ME/CFS and their 1418 family members from 30 countries participated in the survey. Participants with ME/CFS had a mean age of 45.8 years (range 18-81) and were predominantly women (1214 (85.6%) of 1418). Family members had a mean age of 51.9 years (range 18-87) and were predominantly men (women: 504 (35.5%) of 1418). 991 (70%) family members were partners of the people with ME/CFS.

Interventions: EuroQoL-5 Dimension (EQ-5D-3L), completed by people with ME/CFS, and Family Reported Outcome Measure (FROM-16) questionnaire, completed by family members.

Results: The mean overall health status on a Visual Analogue Scale for people with ME/CFS was 33.8 (0=worst, 100=best). People with ME/CFS were most affected by ability to perform usual activities, pain, mobility, self-care and least impacted by anxiety. For family members, the overall mean FROM-16 score was 17.9 (0=no impact, 32=worst impact), demonstrating a major impact on QoL. Impact on QoL was significantly correlated between the person with ME/CFS and their family member (p<0.0001). Family members were most impacted emotionally by worry, frustration and sadness and personally by family activities, holidays, sex life and finances.

Conclusions: To the best of our knowledge, this is the largest study on the impact of the QoL of persons with ME/CFS and their family members. While open participation surveys are limited by selection bias, this research has revealed a significant worldwide burden of ME/CFS on the QoL of people with ME/CFS and their family members.

Source: Vyas J, Muirhead N, Singh R, Ephgrave R, Finlay AY. Impact of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) on the quality of life of people with ME/CFS and their partners and family members: an online cross-sectional survey. BMJ Open. 2022 May 2;12(5):e058128. doi: 10.1136/bmjopen-2021-058128. PMID: 35501074. https://bmjopen.bmj.com/content/12/5/e058128  (Full text)

Is It Useful to Question the Recovery Behaviour of Patients with ME/CFS or Long COVID?

Abstract:

For the last few decades, medical guidelines have recommended treating patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) with graded exercise therapy (GET) and cognitive behavioural therapy (CBT). Moreover, doctors have questioned the recovery behaviour of these patients and stimulated them to follow these treatments so that they would be able to go back to work. In this article, we reviewed trials of GET and CBT for ME/CFS that reported on work status before and after treatment to answer the question of whether doctors should continue to question the recovery behaviour of patients with ME/CFS.

Our review shows that more patients are unable to work after treatment than before treatment with CBT and GET. It also highlights the fact that both treatments are unsafe for patients with ME/CFS. Therefore, questioning the recovery behaviour of patients with ME/CFS is pointless. This confirms the conclusion from the British National Institute for Health and Care Excellence (NICE), which has recently published its updated ME/CFS guideline and concluded that CBT and GET are not effective and do not lead to recovery.

Studies on CBT and GET for long COVID have not yet been published. However, this review offers no support for their use in improving the recovery of patients with an ME/CFS-like illness after infection with COVID-19, nor does it lend any support to the practice of questioning the recovery behaviour of these patients.

Source: Vink M, Vink-Niese F. Is It Useful to Question the Recovery Behaviour of Patients with ME/CFS or Long COVID? Healthcare (Basel). 2022 Feb 18;10(2):392. doi: 10.3390/healthcare10020392. PMID: 35207003. https://www.mdpi.com/2227-9032/10/2/392 (Full text)

What treatments work for anxiety and depression in children and adolescents with chronic fatigue syndrome? An updated systematic review

Abstract:

Objectives: Children with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) experience a higher prevalence of depression and anxiety compared with age-matched controls. Our previous systematic reviews in 2015/16 found little evidence for effective treatment for children with CFS/ME with comorbid depression and/or anxiety. This review updates these findings.

Design: A systematic review. We searched Cochrane library, Medline, Embase and PsycINFO databases from 2015 to 2020. We combined the updated results with our previous reviews in a narrative synthesis.

Participants: Inclusion criteria: <18 years old; diagnosed with CFS/ME (using Centers for Disease Control and Prevention, National Institute for Health and Care Excellence or Oxford criteria); validated measures of depression and/or anxiety.

Interventions: Observational studies or randomised controlled trials.

Comparison: Any or none.

Outcomes: Studies with outcome measures of anxiety, depression or fatigue.

Results: The updated review identified two studies. This brings the total number of paediatric CFS/ME studies with a measure of anxiety and/or depression since 1991 to 16. None of the studies specifically targeted depression, nor anxiety. One new study showed the Lightning Process (in addition to specialist care) was more effective at reducing depressive and anxiety symptoms compared with specialist care alone. Previous studies evaluated cognitive-behavioural therapy (CBT); pharmacological interventions and behavioural approaches. CBT-type interventions had most evidence for improving comorbid anxiety and/or depressive symptoms but varied in delivery and modality. Other interventions showed promise but studies were small and have not been replicated.

Conclusion: Very few paediatric CFS/ME intervention studies have been conducted. This review update does not significantly add to what is known from previous reviews. The evidence is of poor quality and insufficient to conclude which interventions are effective at treating comorbid anxiety and/or depression in paediatric CFS/ME.

Source: Clery P, Royston A, Driver K, Bailey J, Crawley E, Loades M. What treatments work for anxiety and depression in children and adolescents with chronic fatigue syndrome? An updated systematic review. BMJ Open. 2022 Jan 31;12(1):e051358. doi: 10.1136/bmjopen-2021-051358. PMID: 35105619. https://pubmed.ncbi.nlm.nih.gov/35105619/

Stigma perceived by patients with functional somatic syndromes and its effect on health outcomes – A systematic review

Abstract:

Background: Patients with functional somatic syndromes (FSS) experience stigma which arguably affects their health.

Aim: To determine the presence of perceived stigma and its effects on physical and mental health in patients with FSS compared to patients with comparable explained conditions.

Methods: A comprehensive search of PubMed, Embase, PsycINFO, CINAHL and Cochrane Library was performed to select studies focusing on stigma perceived by patients with irritable bowel syndrome (IBS), fibromyalgia (FM) or chronic fatigue syndrome (CFS), comparing these patients to patients with comparable but explained conditions.

Results: We identified 1931 studies after duplicate removal. After screening we included eight studies: one study about all three FSS, one about IBS, five about FM and one about CFS. We found that patients with IBS did not consistently experience higher levels of stigma than those with a comparable explained condition. Patients with CFS and FM experienced higher levels of stigma compared to patients with comparable explained conditions. All studies showed a correlation between stigma and negative health outcomes.

Discussion: Patients with FSS experience stigma and negative health outcomes. However, experiencing stigma is not restricted to patients with FSS, as many patients with explained health conditions also experience stigma. Whether stigma has more negative health consequences in patients with FSS compared to patients with explained health conditions remains unclear and should be assessed in future research.

Source: Ko C, Lucassen P, van der Linden B, Ballering A, Olde Hartman T. Stigma perceived by patients with functional somatic syndromes and its effect on health outcomes – A systematic review. J Psychosom Res. 2022 Jan 6;154:110715. doi: 10.1016/j.jpsychores.2021.110715. Epub ahead of print. PMID: 35016138. https://pubmed.ncbi.nlm.nih.gov/35016138/

 

What treatments work for anxiety and depression in children and adolescents with Chronic Fatigue Syndrome? An updated systematic review

Abstract:

Objectives: Children with Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) experience a higher prevalence of depression and anxiety compared to age-matched controls. Our previous systematic reviews in 2015/16 found little evidence for effective treatment for children with CFS/ME with comorbid depression and/or anxiety. This review updates these findings.

Design: A systematic review. We searched Cochrane library, Medline, Embase and PsychINFO databases from 2015-2020. We combined the updated results with our previous reviews in a narrative synthesis.

Participants: Inclusion criteria: <18 years old; diagnosed with CFS/ME (using Centre for Disease Control, National Institute for Health and Care Excellence, or Oxford criteria); validated measures of depression and/or anxiety.

Interventions: Observational studies or randomised controlled trials.

ComparisonAny or none.

Outcomes: Studies with outcome measures of anxiety, depression, or fatigue.

Results: The updated review identified two studies. This brings the total number of paediatric CFS/ME studies with a measure of anxiety and/or depression since 1991 to 16. None of the studies specifically targeted depression, nor anxiety. One new study showed the Lightning Process (in addition to specialist care) was more effective at reducing depressive and anxiety symptoms compared to specialist care alone. Previous studies evaluated cognitive behavioural therapy (CBT); pharmacological interventions; and behavioural approaches. CBT-type interventions had most evidence for improving comorbid anxiety and/or depressive symptoms but varied in delivery and modality. Other interventions showed promise but studies were small and have not been replicated.

Conclusion: Very few paediatric CFS/ME intervention studies have been conducted. This review update does not significantly add to what is known from previous reviews. The evidence is of poor quality and insufficient to conclude which interventions are effective at treating comorbid anxiety and/or depression in paediatric CFS/ME.

Source:Clery, P., Royston , A., Driver, K., Bailey, J., Crawley, E. M., & Loades, M. (Accepted/In press). What treatments work for anxiety and depression in children and adolescents with Chronic Fatigue Syndrome? An updated systematic review. BMJ Open. https://research-information.bris.ac.uk/en/publications/what-treatments-work-for-anxiety-and-depression-in-children-and-a