Category: Overlapping Illnesses

Toward Unbiased Evaluation of Postacute Sequelae of SARS-CoV-2 Infection: Challenges and Solutions for the Long Haul Ahead

Abstract:

The authors argue that postacute SARS-CoV-2 syndrome presents unique challenges in determining risk factors, natural history, and proper management. They call for strategies and actions that are based on rigorous, high-quality evidence.

Source: Wisk LE, Nichol G, Elmore JG. Toward Unbiased Evaluation of Postacute Sequelae of SARS-CoV-2 Infection: Challenges and Solutions for the Long Haul Ahead. Ann Intern Med. 2022 Mar 8:M21-4664. doi: 10.7326/M21-4664. Epub ahead of print. PMID: 35254883; PMCID: PMC8906529. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8906529/ (Full text)

Long COVID and episodic disability: advancing the conceptualisation, measurement and knowledge of episodic disability among people living with Long COVID – protocol for a mixed-methods study

Abstract:

Introduction: As the prevalence of Long COVID increases, there is a critical need for a comprehensive assessment of disability. Our aims are to: (1) characterise disability experiences among people living with Long COVID in Canada, UK, USA and Ireland; and (2) develop a patient-reported outcome measure to assess the presence, severity and episodic nature of disability with Long COVID.

Methods and analysis: In phase 1, we will conduct semistructured interviews with adults living with Long COVID to explore experiences of disability (dimensions, uncertainty, trajectories, influencing contextual factors) and establish an episodic disability (ED) framework in the context of Long COVID (n~10 each country). Using the conceptual framework, we will establish the Long COVID Episodic Disability Questionnaire (EDQ). In phase 2, we will examine the validity (construct, structural) and reliability (internal consistency, test-retest) of the EDQ for use in Long COVID. We will electronically administer the EDQ and four health status criterion measures with adults living with Long COVID, and readminister the EDQ 1 week later (n~170 each country). We will use Rasch analysis to refine the EDQ, and confirm structural and cross-cultural validity. We will calculate Cronbach’s alphas (internal consistency reliability), and intraclass correlation coefficients (test-retest reliability), and examine correlations for hypotheses theorising relationships between EDQ and criterion measure scores (construct validity). Using phase 2 data, we will characterise the profile of disability using structural equation modelling techniques to examine relationships between dimensions of disability and the influence of intrinsic and extrinsic contextual factors. This research involves an academic-clinical-community partnership building on foundational work in ED measurement, Long COVID and rehabilitation.

Ethics and dissemination: This study was approved by the University of Toronto Research Ethics Board. Knowledge translation will occur with community collaborators in the form of presentations and publications in open access peer-reviewed journals and presentations.

Source: O’Brien KK, Brown DA, Bergin C, Erlandson KM, Vera JH, Avery L, Carusone SC, Cheung AM, Goulding S, Harding R, McCorkell L, O’Hara M, Robinson L, Thomson C, Wei H, St Clair-Sullivan N, Torres B, Bannan C, Roche N, Stokes R, Gayle P, Solomon P. Long COVID and episodic disability: advancing the conceptualisation, measurement and knowledge of episodic disability among people living with Long COVID – protocol for a mixed-methods study. BMJ Open. 2022 Mar 7;12(3):e060826. doi: 10.1136/bmjopen-2022-060826. PMID: 35256450; PMCID: PMC8905414.  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8905414/ (Full text)

Enhancing the management of long COVID in general practice: a scoping review

Abstract:

Background: Long COVID is a multifaceted condition, and it has impacted a considerable proportion of those with acute-COVID-19. Affected patients often have complex care needs requiring holistic and multidisciplinary care, the kind routinely provided in general practice. However, there is limited evidence regarding GP interventions.

Aim: This study aimed to address this issue by conducting a scoping review of literature on GP management of Long COVID.

Design & setting: Arksey and O’Malley’s six-stage scoping review framework with recommendations by Levac et al. was used.

Method: PubMed, Google Scholar, the Cochrane Library, SCOPUS, and Google searches were conducted to identify relevant peer-reviewed/grey literature, and study selection process was conducted according to the PRISMA Extension for Scoping Reviews guidelines. Braun and Clarke’s ‘Thematic Analysis’ approach was used to interpret data.

Results: Nineteen of 972 identified papers were selected for review. These included peer-reviewed articles and grey literature spanning a wide range of countries. Six themes were identified regarding GP management of Long COVID, these being: (i) GP uncertainty, (ii) Listening and empathy, (iii) Assessment and monitoring of symptoms, (iv) Coordinating access to appropriate services, (v) Facilitating provision of continual and integrated multi-disciplinary care and (vi) Need to facilitate psychological support.

Conclusion: The findings show that GPs can and have played a key role in the management of Long COVID, and that patient care can be improved through better understanding of patient experiences, standardised approaches for symptom identification/treatment, and facilitation of access to multidisciplinary specialist services when needed. Future research evaluating focused GP interventions is needed.

Source: Brennan A, Broughan JM, McCombe G, Brennan J, Collins C, Fawsitt R, Gallagher J, Guérandel A, O’Kelly B, Quinlan D, Lambert JS, Cullen W. Enhancing the management of long COVID in general practice: a scoping review. BJGP Open. 2022 Mar 7:BJGPO.2021.0178. doi: 10.3399/BJGPO.2021.0178. Epub ahead of print. PMID: 35256357.  https://bjgpopen.org/content/early/2022/03/06/BJGPO.2021.0178 (Full text available as PDF file)

Characteristics and impact of Long Covid: Findings from an online survey

Abstract:

Background: Long Covid is a public health concern that needs defining, quantifying, and describing. We aimed to explore the initial and ongoing symptoms of Long Covid following SARS-CoV-2 infection and describe its impact on daily life.

Methods: We collected self-reported data through an online survey using convenience non-probability sampling. The survey enrolled adults who reported lab-confirmed (PCR or antibody) or suspected COVID-19 who were not hospitalised in the first two weeks of illness. This analysis was restricted to those with self-reported Long Covid. Univariate comparisons between those with and without confirmed COVID-19 infection were carried out and agglomerative hierarchical clustering was used to identify specific symptom clusters, and their demographic and functional correlates.

Results: We analysed data from 2550 participants with a median duration of illness of 7.6 months (interquartile range (IQR) 7.1-7.9). 26.5% reported lab-confirmation of infection. The mean age was 46.5 years (standard deviation 11 years) with 82.8% females and 79.9% of participants based in the UK. 89.5% described their health as good, very good or excellent before COVID-19. The most common initial symptoms that persisted were exhaustion, chest pressure/tightness, shortness of breath and headache. Cognitive dysfunction and palpitations became more prevalent later in the illness. Most participants described fluctuating (57.7%) or relapsing symptoms (17.6%). Physical activity, stress, and sleep disturbance commonly triggered symptoms. A third (32%) reported they were unable to live alone without any assistance at six weeks from start of illness. 16.9% reported being unable to work solely due to COVID-19 illness. 37.0% reported loss of income due to illness, and 64.4% said they were unable to perform usual activities/duties. Acute systems clustered broadly into two groups: a majority cluster (n = 2235, 88%) with cardiopulmonary predominant symptoms, and a minority cluster (n = 305, 12%) with multisystem symptoms. Similarly, ongoing symptoms broadly clustered in two groups; a majority cluster (n = 2243, 88.8%) exhibiting mainly cardiopulmonary, cognitive symptoms and exhaustion, and a minority cluster (n = 283, 11.2%) exhibiting more multisystem symptoms. Belonging to the more severe multisystem cluster was associated with more severe functional impact, lower income, younger age, being female, worse baseline health, and inadequate rest in the first two weeks of the illness, with no major differences in the cluster patterns when restricting analysis to the lab-confirmed subgroup.

Conclusion: This is an exploratory survey of Long Covid characteristics. Whilst this is a non-representative population sample, it highlights the heterogeneity of persistent symptoms, and the significant functional impact of prolonged illness following confirmed or suspected SARS-CoV-2 infection. To study prevalence, predictors and prognosis, research is needed in a representative population sample using standardised case definitions.

Source: Ziauddeen N, Gurdasani D, O’Hara ME, Hastie C, Roderick P, Yao G, Alwan NA. Characteristics and impact of Long Covid: Findings from an online survey. PLoS One. 2022 Mar 8;17(3):e0264331. doi: 10.1371/journal.pone.0264331. PMID: 35259179; PMCID: PMC8903286. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8903286/ (Full text)

Early clues regarding the pathogenesis of long-COVID

Abstract:

Intense investigation into the predictors and determinants of post-acute sequelae of SARS-CoV-2 infection (PASC), including ‘long COVID’, is underway. Recent studies provide clues to the mechanisms that might drive this condition, with the goal of identifying host or virus factors that can be intervened upon to prevent or reverse PASC.

Source: Peluso MJ, Deeks SG. Early clues regarding the pathogenesis of long-COVID. Trends Immunol. 2022 Apr;43(4):268-270. doi: 10.1016/j.it.2022.02.008. Epub 2022 Mar 8. PMID: 35272932; PMCID: PMC8901423. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8901423/ (Full text)

Long-term outcomes of pediatric infections: from traditional infectious diseases to long covid

Abstract:

There is limited evidence available on the long-term impact of SARS-CoV-2 infection in children. In this article, the authors analyze the recent evidence on pediatric long covid and lessons learnt from a pediatric post-covid unit in Rome, Italy. To gain a better understanding of the concerns raised by parents and physicians in relation to the potential long-term consequences of this novel infection, it is important to recognize that long-term effect of a post-infectious disease is not a new phenomenon.

Source: Buonsenso D, Di Gennaro L, Rose C, Morello R, D’Ilario F, Zampino G, Piazza M, Boner AL, Iraci C, O’Connell S, Cohen VB, Esposito S, Munblit D, Reena J, Sigfrid L, Valentini P. Long-term outcomes of pediatric infections: from traditional infectious diseases to long covid. Future Microbiol. 2022 Mar 10:10.2217/fmb-2022-0031. doi: 10.2217/fmb-2022-0031. Epub ahead of print. PMID: 35264003; PMCID: PMC8910780.  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8910780/ (Full text)

The immunology and immunopathology of COVID-19

Abstract:

Considerable research effort has been made worldwide to decipher the immune response triggered upon severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections, identify the drivers of severe and fatal COVID-19, and understand what leads to the prolongation of symptoms after disease resolution. We review the results of almost 2 years of COVID-19 immunology research and discuss definitive findings and remaining questions regarding our understanding of COVID-19 pathophysiology. We discuss emerging understanding of differences in immune responses seen in those with and without Long Covid syndrome, also known as post-acute sequelae of SARS-CoV-2. We hope that the knowledge gained from this COVID-19 research will be applied in studies of inflammatory processes involved in critical and chronic illnesses, which remain a major unmet need.
Read the full article HERE.
Source: Merad M, Blish CA, Sallusto F, Iwasaki A. The immunology and immunopathology of COVID-19. Science. 2022 Mar 11;375(6585):1122-1127. doi: 10.1126/science.abm8108. Epub 2022 Mar 10. PMID: 35271343. https://www.science.org/doi/full/10.1126/science.abm8108 (Full text)

Long Covid at the crossroads: Comparisons and lessons from the treatment of patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)

Abstract:

Whilst parallels have been drawn between Long Covid and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), there is a well-documented history of negative stereotyping and marginalisation of patients with ME/CFS. A socio-politically oriented comparison of scientific, clinical and societal responses to Long Covid and ME/CFS is thus important to prevent similar harms arising among Long Covid patients. We identify four reasons for injustices in the treatment of ME/CFS patients, and discuss the risk of Long Covid following a similar trajectory. We conclude with policy and practice recommendations to help prevent such injustices arising again, including consideration of critical reflexivity in medical education.

Source: Hunt J, Blease C, Geraghty KJ. Long Covid at the crossroads: Comparisons and lessons from the treatment of patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). J Health Psychol. 2022 Mar 27:13591053221084494. doi: 10.1177/13591053221084494. Epub ahead of print. PMID: 35341334. https://pubmed.ncbi.nlm.nih.gov/35341334/

A systematic review and meta-analysis of Long COVID symptoms

Abstract:

Background Ongoing symptoms or the development of new symptoms following a SARS-CoV-2 diagnosis has caused a complex clinical problem known as “:Long COVID”: (LC). This has introduced further pressure on global healthcare systems as there appears to be a need for ongoing clinical management of these patients. LC personifies heterogeneous symptoms at varying frequencies. The most complex symptoms appear to be driven by the neurology and neuropsychiatry spheres.

Methods A systematic protocol was developed, peer reviewed and published in PROSPERO. The systematic review included publications from the 1st of December 2019-30th June 2021 published in English. Multiple electronic databases were used. The dataset has been analysed using a random-effects model and a subgroup analysis based on geographical location. Prevalence and 95% confidence intervals (CIs) were established based on the data identified.

Results Of the 302 studies, 49 met the inclusion criteria, although 36 studies were included in the meta-analysis. The 36 studies had a collective sample size of 11598 LC patients. 18 of the 36 studies were designed as cohorts and the remainder were cross-sectional. Symptoms of mental health, gastrointestinal, cardiopulmonary, neurological, and pain were reported.

Conclusions The quality that differentiates this meta-analysis is that they are cohort and cross-sectional studies with follow-up. It is evident that there is limited knowledge available of LC and current clinical management strategies may be suboptimal as a result. Clinical practice improvements will require more comprehensive clinical research, enabling effective evidence-based approaches to better support patients.

Source: Arun Natarajan, Ashish Shetty, Gayathri Delanerolle, Yutian Zeng, Yingzhe Zhang, Vanessa Raymont, Shanaya Rathod, Sam Halabi, Kathryn Elliot, Peter Phiri, Jian Qing Shi. A systematic review and meta-analysis of Long COVID symptoms. medRxiv 2022.03.08.22272091; doi: https://doi.org/10.1101/2022.03.08.22272091 https://www.medrxiv.org/content/10.1101/2022.03.08.22272091v1.full-text (Full text)