Post-polio syndrome. An emerging threat to polio survivors

Comprehensively identifying Long Covid articles with human-in-the-loop machine learning

A significant percentage of COVID-19 survivors experience ongoing multisystemic symptoms that often affect daily living, a condition known as Long Covid or post-acute-sequelae of SARS-CoV-2 infection. However, identifying scientific articles relevant to Long Covid is challenging since there is no standardized or consensus terminology. We developed an iterative human-in-the-loop machine learning framework combining data programming with active learning into a robust ensemble model, demonstrating higher specificity and considerably higher sensitivity than other methods. Analysis of the Long Covid Collection shows that (1) most Long Covid articles do not refer to Long Covid by any name, (2) when the condition is named, the name used most frequently in the literature is Long Covid, and (3) Long Covid is associated with disorders in a wide variety of body systems. The Long Covid Collection is updated weekly and is searchable online at the LitCovid portal: https://www.ncbi.nlm.nih.gov/research/coronavirus/docsum?filters=e_condition.LongCovid.

Laryngeal manifestations of postpoliomyelitis syndrome

Postpoliomyelitis syndrome (PPS) is a disease that may occur in survivors of acute poliomyelitis several decades after their initial infection. It can present as dysphonia, with vocal weakness and fatigue. Swallowing, respiratory, and other laryngopharyngeal symptoms may be manifestations of the disease or they may represent worsening of previously stable and compensated deficits. Three cases of laryngeal changes in PPS with videostroboscopic and laryngeal electromyography findings highlight the features of this disorder. We review possible etiologies of laryngeal PPS, diagnostic criteria, and treatment, as well as the current literature.

The postpolio syndrome--a critical comment to the diagnosis

OBJECTIVES

The postpolio syndrome (PPS) is said to comprise symptoms which are characteristic of a specific disorder affecting former polio sufferers many years after their acute disease. Localized muscular weakening with or without attendant pain and atrophy are claimed to separate patients with PPS from persons with unspecific common symptoms from the musculoskeletal system. Therefore our objective was to evaluate the specificity of the symptoms of the PPS.

MATERIAL AND METHODS

Eighty-one former polio sufferers were, based on clinical examination and a questionnaire, compared with 116 gender and age matched controls.

RESULTS

Significant differences between patients and controls of self-reported muscular weakening and pain in different locations were found. However, the level of similar complaints reported by the controls also was considerable.

CONCLUSION

We question the validity of the diagnosis in cases without localized atrophy or other objective signs of denervation.

Unilateral multilevel cervical radiculopathies as a late effect of poliomyelitis. A case report

A severe left-sided cervical radiculopathy that developed after a work-related injury is reported. Because this involved the upper limb opposite to a long-standing postpolio sequela, it is suggestive of postpolio syndrome. Work-up showed left-sided multilevel acquired foraminal stenosis. These unilateral degenerative changes were very likely the result of overuse of the cervical apophyseal joints, the consequence of the muscle imbalance created by the poliomyelitis. It was successfully treated by appropriate surgical decompression.

Burden of disability in a post war birth cohort in the UK

STUDY OBJECTIVE

To report the prevalence of physical disability in a national sample of 43 year old men and women, and examine the relationship between disability and the consumption of hospital care. To assess the contribution of childhood health and social circumstances to the risk of adult disability, and the socioeconomic consequences of disability.

DESIGN

The assessment of disabilities of physical movement was based on criteria developed by OPCS for their national survey of disability. The analysis used data on socioeconomic circumstances from childhood to 43 years and on serious illness in the first 25 years of life collected prospectively on members of the MRC National Survey of Health and Development, the 1946 birth cohort study.

SETTING

England, Wales, and Scotland.

PARTICIPANTS

A general population sample of 3235 men and women aged 43 years.

MAIN RESULTS

Seven per cent of cohort survivors at 43 years were physically disabled and a further 3% reported difficulties although they were not assessed as disabled according to OPCS criteria. The prevalence of severe disability at this age was similar to that derived from the OPCS survey but the prevalence of mild disability was substantially greater. Disability was associated with a greater use of hospital care in recent years and throughout life. Those who had experienced a serious illness in earlier life were over twice as likely to be disabled; certain conditions, such as polio, were associated with a particularly high relative risk. Those who had had a socially disadvantaged start to life were more likely to be physically disabled at 43 years but the strength of this relationship was considerably weakened by adjustment for later social factors, suggesting that social disadvantage throughout life, or during adult life, increased the risk of disability. Taking these results into account the relative impact of disability on income and employment was found to be greatest for those from the unskilled and semi-skilled classes.

CONCLUSIONS

The prevalence of physical disability among those in early middle age may be greater than previously estimated. The strong links between childhood ill health and adult disability and its association with high levels of hospital care support longstanding recommendations for better coordination between child and adult health services. Social disadvantages affects the risk of disability and its financial and employment consequences.