The Association of multiple sclerosis, traumatic brain injury, and spinal cord injury to acute and long COVID-19 outcomes

BACKGROUND

Although persons with disabilities are a high-risk group, little is known about the association between specific disabling conditions and acute or long COVID outcomes.

OBJECTIVE

To examine the severity of acute SARS-CoV-2 infection and post-COVID outcomes among people with a preexisting diagnosis of multiple sclerosis (MS), spinal cord injury (SCI), or traumatic brain injury (TBI).

METHODS

This was a retrospective cohort study using the TrinetX Research Database, a large representative database of medical records. COVID-19-positive persons with MS, SCI, or TBI (cases) were matched 1:1 on age, gender, race, ethnicity, and comorbidities to COVID-19-positive persons without these diagnoses (controls). The main outcomes assessed were hospitalization for acute COVID-19, length of stay (LOS), the total number of hospitalizations, mortality, and incidence of six prevalent post-COVID sequelae within 6 months following a COVID-19 diagnosis.

RESULTS

There were 388,297 laboratory-confirmed COVID-19 cases identified. Of these cases, 2204 individuals had one of the following preexisting diagnoses: 51.3% TBI, 31.4% MS, and 17.3% SCI. People with TBI, MS, and SCI were significantly more likely to be hospitalized for COVID-19 (odds ratio [OR] = 1.22, 95% confidence interval [CI] = 1.03-1.46) than matched controls. There was no difference in LOS, total hospitalizations, or mortality during the 6 months following the initial COVID diagnosis. Multivariable analyses reveal that persons with TBI, MS, and SCI were more likely to experience new weakness (OR = 1.54, 95% CI = 1.19-2.00), mobility difficulties (OR = 1.66, 95% CI = 1.17-2.35), and cognitive dysfunction (OR = 1.79, 95% CI = 1.38-2.33) than controls, even after controlling for the presence of these symptoms prior to their COVID infection and other risk factors. There were no differences in fatigue, pain, or dyspnea.

CONCLUSIONS

Having a history of MS, SCI or TBI was not associated with higher mortality risk from COVID-19. However, associations between these diagnoses and postacute COVID-19 symptoms raise concern about widening health outcome disparities for individuals with such potentially disabling conditions following COVID-19 infection.

Serotonin reduction in post-acute sequelae of viral infection

Post-acute sequelae of COVID-19 (PASC, "Long COVID") pose a significant global health challenge. The pathophysiology is unknown, and no effective treatments have been found to date. Several hypotheses have been formulated to explain the etiology of PASC, including viral persistence, chronic inflammation, hypercoagulability, and autonomic dysfunction. Here, we propose a mechanism that links all four hypotheses in a single pathway and provides actionable insights for therapeutic interventions. We find that PASC are associated with serotonin reduction. Viral infection and type I interferon-driven inflammation reduce serotonin through three mechanisms: diminished intestinal absorption of the serotonin precursor tryptophan; platelet hyperactivation and thrombocytopenia, which impacts serotonin storage; and enhanced MAO-mediated serotonin turnover. Peripheral serotonin reduction, in turn, impedes the activity of the vagus nerve and thereby impairs hippocampal responses and memory. These findings provide a possible explanation for neurocognitive symptoms associated with viral persistence in Long COVID, which may extend to other post-viral syndromes.

Race, ethnicity, and utilization of outpatient rehabilitation for treatment of post COVID-19 condition

INTRODUCTION

Outpatient rehabilitation is recommended in the treatment of post coronavirus disease 2019 (COVID-19) condition. Although racial and ethnic disparities in the incidence and severity of COVID-19 have been well documented, little is known about the use of outpatient rehabilitation among patients with post COVID-19 condition.

OBJECTIVE

To examine factors associated with outpatient rehabilitation use following COVID-19 and to ascertain whether differential incidence of sequelae explain variation in post COVID-19 rehabilitation utilization by race and ethnicity.

DESIGN

Case-control study.

SETTING

Community.

PARTICIPANTS

U.S. adults with COVID-19 during 2020 in the TriNetX database.

INTERVENTION

N/A.

MAIN OUTCOME MEASURES

Receipt of outpatient rehabilitation services within 6 months of COVID-19 diagnosis and incidence of post COVID-19 condition symptoms (weakness, fatigue, pain, cognitive impairment, mobility difficulties, and dyspnea).

RESULTS

From 406,630 laboratory-confirmed COVID-19 cases, we identified 8724 individuals who received outpatient rehabilitation and matched 28,719 controls. Of rehabilitation users, 43.3% were 40 years old or younger, 54.8% were female, 58.2% were White, 17.9% were African American/Black, 2.1% were Asian, 13.0% were Hispanic, 39.2% had no comorbidities, and 40.3% had been hospitalized for COVID-19. Dyspnea (20.4%), fatigue (12.4%), and weakness (8.2%) were the most frequently identified symptoms. Although there were no racial differences in the incidence of the six post COVID-19 condition symptoms considered, African American/Black individuals were significantly less likely than their White counterparts to receive outpatient rehabilitation (odds ratio [OR] = 0.89; 95% confidence interval [CI]: 0.84-0.96; p = .003). Hispanic individuals had higher outpatient rehabilitation utilization (OR = 1.22; 95% CI: 1.11-1.33; p < .001) and a significantly higher incidence of post COVID-19 fatigue.

CONCLUSIONS

In this large nationally representative study, African American/Black race was associated with lower utilization of outpatient rehabilitation services despite a similar incidence of post COVID-19 condition symptoms. Further research is needed to better understand access barriers to rehabilitation services for post COVID-19 condition recovery care and address racial inequalities in receipt of care.

A Survey of Dedicated PASC Clinics: Characteristics, Barriers and Spirit of Collaboration

BACKGROUND

SARS-CoV-2 infection can produce prolonged multi-organ system dysfunction and a worsened quality of life, a condition known as Post-Acute Sequelae of SARS-CoV-2 Infection (PASC). In response, clinics have emerged dedicated to the treatment of individuals with PASC.

OBJECTIVE

To better understand the current characteristics of these clinics, barriers they face and interest in collaboration between clinics.

DESIGN

A cross-sectional survey study PARTICIPANTS: Clinicians working within dedicated PASC centers (N=94) identified primarily through the Survivor Corps database of Post-COVID Care Centers. Additional clinics were found through news articles, an American Academy of Physical Medicine and Rehabilitation Database, and word of mouth.

METHODS

The branching logic electronic survey consisting of up to 39 questions was sent electronically to potential participants.

RESULTS

Complete survey responses were obtained from 45 clinics. There were a wide variety of different clinical models and specialties involved. The majority of clinics were homed in Physical Medicine and Rehabilitation (40%), Pulmonology (22%), and Internal Medicine (16%). Most clinics (73%) reported experiencing obstacles in the treatment of their patients, the most common of which included needing more established protocols (45%) and more clinical resources (24%). Most clinics (76%) also reported an interest in participating in a collaborative clinical network.

CONCLUSION

Despite wide variability in current clinical models of PASC clinics, there are common practices such as using telemedicine, having initial visits longer than 30 minutes, involving certain specialties in the treatment team and having the ability for follow-up. Clinicians involved with PASC clinics have a strong interest in collaboration to improve patient care and overcome clinical obstacles, the most common of which is the lack of clear treatment protocols. More research is needed to identify which clinical models lead to better patient outcomes. This article is protected by copyright. All rights reserved.

Acute Cervical Radiculopathy Outcomes: Soft Disc Herniations vs Osteophytes

OBJECTIVE

Prospectively evaluate the clinical outcomes of acute cervical radiculopathy with respect to soft disc herniations vs osteophytes.

METHODS

Sixty consecutive patients who had had cervical radiculopathy for ≤1 month were enrolled in the study. Inclusion criteria were radicular pain greater than axial pain and a pain score ≥4 out of 10 on a numerical rating scale. Patients had at least one positive clinical finding: motor, sensory, or reflex changes. Plain films and magnetic resonance imaging were ordered. Follow-up was at 6 weeks and 3, 6, and 12 months. Outcomes included pain scores (neck and upper limb), neck disability index, medication use, opioid use, and need for surgery. Two attending musculoskeletal radiologists reviewed imaging findings for osteophytes vs soft disc herniations at the symptomatic level.

RESULTS

More than 75% reduction in pain was seen in 77% of patients with soft disc herniations and 66% of patients with osteophytes (P > 0.05) at 12 months. A pain score ≤2 out of 10 within 6 to 12 months was seen in 86% of patients with soft disc herniations and 81% of patients with osteophytes (P > 0.05). Moderate or marked improvement at 12 months was seen in 85% of patients with soft discs and 77% of patients with osteophytes (P > 0.05). Baseline-to-12-month numerical rating scale pain scores of patients with soft discs vs osteophytes had overlapping confidence intervals at each follow-up. At 12 months, very few had undergone surgery (7% of patients with soft discs, 11% of patients with osteophytes; P > 0.05) or were on opioids (7% of patients with soft discs, 9% of patients with osteophytes; P > 0.05).

CONCLUSIONS

The majority of patients, but not all patients, with acute radiculopathies improved with time. This was seen with both soft disc herniations and osteophytes.

Cognitive Dysfunction in Persons with Chronic Spinal Cord Injuries

Cognitive dysfunction (CD) is pervasive in individuals who have chronic spinal cord injuries (SCI). Although classically associated with concomitant traumatic brain injuries, many other causes have been proposed, including premorbid neuropsychological conditions, mood disorders, substance abuse, polypharmacy, chronic pain and fatigue, sleep apnea, autonomic dysregulation, post-intensive care unit syndrome, cortical reorganizations, and neuroinflammation. The consequences of CD are likely widespread, affecting rehabilitation and function. CD in those with SCI should be recognized, and potentially treated, in order to provide the best patient care.

Improvement in Compensation for Chronic Poststroke Homonymous Hemianopsia After Initiation of a Selective Serotonin Reuptake Inhibitor: A Case Report

Homonymous hemianopsia (HH) is a common adverse outcome after stroke. Spontaneous improvement more than 6 months poststroke is thought to be unlikely, and traditional visual rehabilitation techniques lack clear evidence of efficacy. The case presented is of a 22-year-old woman who demonstrated improved compensation of her stroke-induced HH after the initiation of a selective serotonin reuptake inhibitor (SSRI). There is evidence supporting the use of SSRIs to improve poststroke cognitive impairment, motor impairment, and depression. This is the first case, however, demonstrating the potential novel use SSRIs to improve HH compensation after stroke, to our knowledge.

LEVEL OF EVIDENCE

V.

Delayed Ego Strength Development in Opioid Dependent Adolescents and Young Adults

Objective. To evaluate ego strengths, in the context of Erikson's framework, among adolescents and young adults diagnosed with opioid dependence as compared to non-drug using youth. Methods. Opioid dependent (n = 51) and non-drug using control (n = 31) youth completed the self-administered Psychosocial Inventory of Ego Strengths (PIES). The PIES assesses development in the framework of Erikson's ego strength stages. Multivariate linear regression modeling assessed the independent association of the primary covariate (opioid dependent versus control) as well as potential confounding variables (e.g., psychiatric comorbidities, intelligence) with total PIES score. Results. Mean total PIES score was significantly lower in opioid dependent youth (231.65 ± 30.39 opioid dependent versus 270.67 ± 30.06 control; p < 0.01). Evaluation of the PIES subscores found significant (p < 0.05) delays in all ego strength areas (hope, will, purpose, competence, fidelity, love, care, and wisdom). When adjusting for potential confounders, opioid dependence remained a significant (p < 0.001) independent predictor of total PIES score. Conclusion. Adolescents with opioid dependence demonstrated significant delays in ego strength development. A treatment approach acknowledging this delay may be needed in the counseling and treatment of adolescents with opioid dependence.