Feasibility and outcomes of psychotherapeutic group therapy for patients with fatigue and emotional and cognitive disturbances secondary to COVID-19 disease.

About 10 % of all symptomatic COVID-19 patients suffer from long-lasting health complaints. Fatigue, cognitive and emotional disorders are the most frequent neuropsychiatric symptoms. Evidence-based therapies for these post-covid impairments are still lacking. Here, we examined the feasibility of a newly developed group-therapy program for patients with fatigue, emotional and cognitive disorders following COVID-19. 24 patients with ICD-10 diagnosis of F06.8 and U0.09 participated in the group therapy on average 13 month after their acute COVID-19 infection. Before and after the group therapy they underwent a comprehensive clinical and neuropsychological assessment. The group therapy was held online and consisted of 8 weekly sessions with psychotherapeutic and psychoeducational elements regarding fatigue and pacing, mindfulness, psychiatric disorders, cognition as well as physical activity after COVID-19. Participation in the group was high with an average of 7.25 of 8 visited sessions. Mean overall group satisfaction was 7.78 out of 10 points. Patients improved in their self-reported fatigue, daily living skills, depression and subjective cognitive abilities as well as in their objective performance in neuropsychological tests of attention during the study time. The newly developed group therapy program for patients with fatigue and emotional and cognitive disorders following an infection with SARS-CoV-2 was well accepted and evaluated and is feasible in an online setting. Copyright © 2023. Thieme. All rights reserved.

Automated Prognosis of Alzheimer's Disease using Machine Learning Classifiers on Spontaneous Speech features

Early prediction of Alzheimer's disease and related Dementia has been a great challenge. Recently, preliminary research has shown that neurological symptoms in Covid-19 patients may accelerate the onset of Alzheimer's disease. With such a further rise in Alzheimer's and related Dementia cases, having an early prediction system becomes vital. Speech can provide a non-invasive diagnostic marker for such neurodegenerative diseases. This work mainly focuses on studying significant temporal speech features extracted directly from the recordings of the Dementia bank dataset and applying Machine Learning algorithms to classify the Alzheimer's disease related Dementia Group and the healthy control group. The result shows that Support Vector Machine outperformed other machine learning algorithms with an accuracy of 87%. Compared to prior research, which used manual transcriptions provided with the dataset, this study used audio recordings from the Dementia bank dataset and an advanced Automatic Speech Recognizer to extract speech features from the audio recordings. Furthermore, this method can be applied to the spoken responses of subjects during a neuropsychological assessment. © 2023, Ismail Saritas. All rights reserved.

Long-Covid: Neuropsychological function at 6 and 12months - relation to depression and self-reported symptoms

Objective: Studies have reported significant cognitive impairment following Covid-19, although the majority of reports rely on patients' self-report or short screening instruments to quantify cognitive function. Additionally, little is known about the development of cognitive impairment post Covid-19 and how these trajectories are related to psychiatric and medical variables. Method(s): Patients presenting a spectrum of neurological symptoms following Covid-19 infection were recruited from a national multicenter study. At 6 (N = 77) and 12 (N = 58) months post-covid infection, they completed a comprehensive neuropsychological assessment. At 6 months self-reported symptoms of cognitive dysfunction and fatigue were extracted from questionnaires and depression diagnoses from the MINI neuropsychiatric interview. A control group (N = 58), antibody verified Covid-19 negative, completed neuropsychological assessment. Result(s): At 6 months, verbal and visual memory, attention/working memory, and executive function were significantly reduced in patients compared to healthy controls. These impairments were not associated to acute illness severity indexes, and only moderately correlated to subjective cognitive complaints, level of fatigue, and diagnosis of depression at 6 months. There was a significant improvement in cognitive function across affected domains from 6 to 12 months post infection. This improvement was not associated with depression or self-report at 6 months, nor was the improvement related to acute illness severity. Conclusion(s): Covid-19 patients presenting with neurological symptoms showed significant cognitive impairment at 6 months. However, at 12 months their cognitive functions were normalized and no longer different from healthy controls. These results indicate a good prognosis regarding cognitive function in most patients following Covid-19 infection.Copyright © 2023

An evaluation of the convergent validity of a face-to-face and virtual neuropsychological assessment counter balanced.

The COVID-19 pandemic has highlighted the need for further research evaluating the validity of conducting a battery of neuropsychological assessments virtually compared with face-to-face administration. Previous research has suggested that some neuropsychological assessments yield valid results when administered virtually, however, much of the previous research focused on older adults. To determine the validity of virtually administered neuropsychological tests, 28 healthy participants were assessed using a within-subjects, counter-balanced design. Participants completed a neuropsychological assessment battery covering tests of general intellectual functioning, memory and attention, executive functioning, language and information processing speed, as well as effort. There was no significant difference between face-to-face administration of the neuropsychological battery compared with virtual administration for the majority of the tests used. However, there were significant differences in the Colour Naming Task, with participants making fewer errors on the colour naming task and inhibition/switching task when administered virtually compared with face-to-face administration. There was also a significant age cohort effect in the inhibition/switching task. There was also a trending significant difference in mode of administration for the Verbal Fluency Task. Virtually administered neuropsychological assessments largely provide a valid alternative to face-to-face assessments; however, consideration must be given to test selection as well as the population of participants that are being assessed. Other important considerations must focus on preserving the security and integrity of test materials, as well as administration in a medico-legal setting. Future research should focus on validating assessments with specific patient populations and developing a neuropsychological assessment battery using information technology.

Comprehensive Program of Neurotherapy for a Visual Artist with Post-Covid-19 Syndrome Following Sars-Cov-2 Infection and Severe Course of Covid-19 Treated in Long-Term Pharmacologically Induced Coma

Background: Case study: Conclusion(s): The purpose of the study was twofold: (1) to present post-COVID-19 syndrome, which involves a variety of ongoing neurological, neuropsychiatric, neurocognitive, emotional and behavioral disorders resulting from SARS-CoV-2 infection followed by a severe course of COVID-19 treated in long term pharmacologically induced coma in a visual artist, which impacted on her artwork;(2) to present QEEG/ERP results and neuropsychological testing results in the evaluation of the effectiveness of a comprehensive neurotherapy program, with individualized EEG-Neurofeedback, and art-therapy in the reduction of post-COVID-19 syndrome in this artist. Ms. G., 42, a visual artist, portraitist, with good health, became ill in May 2022. Allegedly flu symptoms appeared first. After a few days, shortness of breath joined in. The PCR test for SARS-CoV-2 was positive. The patient was hospitalized, referred to the ICU, put on a respirator and treated over 11days of a pharmacologically induced coma. Two months after leaving hospital the patient developed post-COVID-19 syndrome. She was diagnosed by an interdisciplinary team: a neurologist, neuropsychiatrist and neuropsychologist. A PET scan of her brain revealed extensive changes involving a loss of metabolism in various brain areas. The presence of complex post-COVID, neurological, neuropsychiatric, neurocognitive, emotional and behavioral disorders was found and a neuropsychiatrist suggested a diagnosis of post-COVID schizophrenia. She was refered to the Reintegration and Training Center of the Polish Neuropsychological Society.We tested the working hypothesis as to the presence of schizophrenia and there was no reduction in the difference of ERPs waves under GO/NOGO task conditions, like in the reference group with schizophrenia (see also Pachalska, Kaczmarek and Kropotov 2021). The absence of a functional neuromarker for schizophrenia allowed us to exclude this diagnosis and to propose a new disease entity, that being post-COVID-19 syndrome. She received a comprehensive two-component program of neurotherapy: (1) program A consisting in goal-oriented neuropsychological rehabilitation, including art therapy (see also: Pachalska 2008;2022b), and (2) program B, based on the most commonly used form of EEG-Neurofeedback: frequency/ power EEG-Neurofeedback, using 2 bipolar surface electrodes, with the protocols written for her specific needs (see also Thompson & Thompson 2012;Kropotov 2016). The comprehensive neurotherapy program lasted 10 weeks, EEG Neurofeedback and art therapy classes were conducted 3 times a week for 45 minutes each. We found that after the completion of the comprehensive neurotherapy program there was a statistically significant reduction in high beta activity compared to the normative HBI database, which is associated with a reduction of anxiety. Also, we observed the improvement of neurocognitive functioning in neuropsychological testing (a significant reduction of anxiety and a noticeable improvement in neurocognitive functions). It should be stressed that the artist was happy that she had regained the ability to create, and even sells her artwork, although her style of painting had changed. Almost all the neurological, psychiatric, neurocognitive, emotional and behavioral disturbances, were reduced in their severity. The artist showed marked improvement and was able to return to painting. The artwork she produced after her illness is in high demand with art collectors. It can be also helpful in the reintegration of the Self System, and the improvement in her quality of life. Human Brain Index (HBI) methodology might be very useful in diagnosing and developing therapies for patients with post-COVID-19 syndrome.Copyright © 2023, MEDSPORTPRESS Publishing House. All rights reserved.

Brain imaging and neuropsychological assessment of individuals recovered from a mild to moderate SARS-CoV-2 infection.

As severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infections have been shown to affect the central nervous system, the investigation of associated alterations of brain structure and neuropsychological sequelae is crucial to help address future health care needs. Therefore, we performed a comprehensive neuroimaging and neuropsychological assessment of 223 nonvaccinated individuals recovered from a mild to moderate SARS-CoV-2 infection (100 female/123 male, age [years], mean ± SD, 55.54 ± 7.07; median 9.7 mo after infection) in comparison with 223 matched controls (93 female/130 male, 55.74 ± 6.60) within the framework of the Hamburg City Health Study. Primary study outcomes were advanced diffusion MRI measures of white matter microstructure, cortical thickness, white matter hyperintensity load, and neuropsychological test scores. Among all 11 MRI markers tested, significant differences were found in global measures of mean diffusivity (MD) and extracellular free water which were elevated in the white matter of post-SARS-CoV-2 individuals compared to matched controls (free water: 0.148 ± 0.018 vs. 0.142 ± 0.017, P < 0.001; MD [10-3 mm2/s]: 0.747 ± 0.021 vs. 0.740 ± 0.020, P < 0.001). Group classification accuracy based on diffusion imaging markers was up to 80%. Neuropsychological test scores did not significantly differ between groups. Collectively, our findings suggest that subtle changes in white matter extracellular water content last beyond the acute infection with SARS-CoV-2. However, in our sample, a mild to moderate SARS-CoV-2 infection was not associated with neuropsychological deficits, significant changes in cortical structure, or vascular lesions several months after recovery. External validation of our findings and longitudinal follow-up investigations are needed.

A feasibility trial of a computerised Spatial Inattention Grasping Home-based Therapy (c-SIGHT) for spatial neglect post-stroke: Trial update

Introduction: Spatial neglect (SN) is a debilitating neuropsychological syndrome defined as a failure to respond to stimuli in the side of space opposite to the side of the brain injury. Despite the impact, there are currently no clinically effective rehabilitation methods. Computerised rehabilitation can increase enjoyment and feelings of independence (Morse et al.,2020), thus we developed computerised Spatial Inattention Grasping Home-based Therapy (c-SIGHT) which can remotely record adherence and facilitate self-administration. SIGHT, or visuomotor feedback training, or (grasping-to-lift and balance rods) has been shown to be effective in reducing SN (Rossit et al., 2019). Method(s): This research aims to investigate the feasibility of a randomized controlled trial using c-SIGHT vs. an attentional control, while also exploring experiences of self-administering the therapy at home. This is a two-arm, double-blinded feasibility study intends to recruit 46 stroke survivors with SN and allocate them using minimisation to self-administer c-SIGHT or an attentional control for 30 minutes, twice a day for 10 days at home. Participants complete a set of neuropsychological tests and questionnaires at three time points (baseline, post-training, one-month follow-up) and one semi-structured interview after using c-SIGHT. Primary outcomes are feasibility parameters (recruitment, blinding success, adherence, follow-up rates). Secondary outcomes are changes in neglect, cognition and activities of daily living. Result(s): Since May 2021, the study has opened up at five NHS sites in the East of England. Despite COVID-19 delays, 20 stroke survivors have been recruited, 11 completed baseline assessments, and four have completed the study. Conclusion(s): Other preliminary results (e.g., usability) will be presented.

Assessing and intervening with children who have been traumatized

Nearly a billion children have had their lives disrupted by the 2019-2021 SARS CoV 2 (Severe Acute Respiratory Syndrome Coronavirus 2;COVID-19) global pandemic, with some estimates suggesting that the economic devastation may result in nearly 725 million children living in poverty in the absence of any mitigating policies (UNICEF, 2020). Given the likelihood of trauma exposure and the almost certainty of being impacted by the global pandemic, it is vital for educators, parents, and public health officials to have a better understanding of the neuropsychological factors underscoring both trauma and resilience in order to better meet the needs of our students. After all, not all children exposed to trauma and adversity experience detrimental outcomes, and many children are capable of devising internal coping and resilience strategies to grow from these experiences. This chapter discusses the various types of trauma that children typically encounter, how trauma impacts key regions in the brain responsible for learning and social-skills development, offer assessment strategies, and suggest targeted intervention strategies for schools and parents in light of some of the unprecedented circumstances our children must face. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

Preliminary Efficacy of Remote, Brief Telepsychotherapy for Covid-19 Patients and Their First-Degree Relatives

Introduction: Over the last two years, the COVID-19 pandemic has negatively impacted the mental health of both COVID-19 patients and the general population. Adults with COVID-19 risked their lives, lost their loved ones, struggled with comorbid clinical conditions to manage, and have been unable to enjoy the physical presence of their families during the infection, quarantine, and lockdown periods. During hospitalization and discharge, family members often did not receive clinical updates from providers and patients, were unable to offer in-person assistance, and to receive psychological support. Incidence and prevalence of depression and anxiety among COVID- 19 older adults and their family members skyrocketed beyond the possibilities of any mental health system to address psychological aftermath of this pandemic and intervene with in-person services. In response to the urgent need for treatments that could be remotely delivered at a large scale, we designed DigiCOVID, a digital mental health approach that offered remote brief tele-psychotherapy to COVID-19 patients and/or their first-degree relatives. The main goal of this single arm, naturalistic study was to evaluate the feasibility, acceptability and usability of DigiCOVID. Additionally, we assessed the impact of DigiCOVID on psychopathology by means of self-report questionnaires. Method(s): Participants underwent an initial phonebased screening to of inclusion and exclusion criteria. Inclusion criteria were: 18-80 years old;positive nasopharyngeal swabs or serology to COVID-19 (for the patients' subgroup);absence of visual/ motor deficits that might interfere with study participation;good level of Italian;and adequate tech literacy. Participants were excluded if they had a previous or actual DSM-5 diagnosis of bipolar disorder, psychotic disorder, or substance use disorder;if they had a diagnosis of dementia;or if they presented suicidal ideation assessed through the Columbia Suicide Severity Rating Scale. Next, they completed a neuropsychological test over video to assess IQ (if lower than 70 participants were excluded), and filled out online gold-standard selfreports for depression (PHQ-9), anxiety (GAD-7), insomnia (ISI), post traumatic symptoms (IES-R) and general wellbeing (GHQ-12). Participants were then assigned to a psychotherapist who remotely conducted eight remote tele-psychotherapy sessions. After treatment, online questionnaires were filled out again to collect data on preliminary efficacy. Result(s): Since November 2021, 138 patients were recruited, 83 completed the intervention (57 patients, 26 fist-degree relatives), and 55 dropped out. At a group level, participants showed significant improvements on all clinical outcomes (PHQ-9: R2=0.12, p=.0019;ISI: R2=0.15, p=.0004;IES-R: R2=0.11, p=.0003;GHQ- 12: R2=0.23, p<.0001;GAD-7: R2=0.12, p=.0011). Given the high heterogeneity in illness severity and psychopathology, we conducted clustering on baseline data coming from the five online questionnaires: 55% of the whole sample had no psychopathology (Cluster 1), whereas 45% showed severe psychopathology (Cluster 2). When clustering was conducted on post-treatment data, three clusters emerged: no psychopathology, residual psychopathology and severe psychopathology. 71% of Cluster 1 participants remained asymptomatic;25% of Cluster 2 participants showed full symptom remission, while 48% and 28% of Cluster 2 participants showed partial symptom remission and no significant effect of treatment, respectively. Conclusion(s): Remote brief tele-psychotherapy for COVID-19 patients and their first-degree relatives is feasible and preliminary efficacious at reducing COVID-related psychopathology. Further research is needed to investigate distinct profiles of treatment response.

Infectious disorders: HIV, hepatitis C, and COVID-19 pandemics

This chapter instead focuses on the neuropsychological manifestations and neuropathological underpinnings of three prominent pandemic infectious diseases: human immunodeficiency virus (HIV), hepatitis C virus (HCV), and the novel coronavirus disease of 2019 (COVID-19), given their substantial global prevalence. It shows how these pandemics highlight the complexities of characterizing neurocognition across varying dimensions of clinical disease. Through a predominantly neuropsychological lens, the chapter discusses how variations in disease duration, severity, degree of recovery, and treatment can affect brain health and related outcomes. Toward this end, it discusses how these mechanisms intersect and diverge in HIV and HCV, two historically severe infectious diseases that now have undergone significant advances in treatment. In turn, the chapter draws upon insights gained from researching the neuropsychological complications of these diseases in order to inform the assessment and diagnosis of neurocognitive impairment in the context of COVID-19. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

Combination of transcranial direct current stimulation with online cognitive training improves symptoms of Post-acute Sequelae of COVID-19: a case series

Abstract Post-Acute Sequelae of COVID-19 (PASC) has been associated with cognitive impairment and complains in up to 90% of individuals after the infection by COVID 19. In this context, there is an urgent need to develop treatments for this disorder. Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation intervention that can modulate neuronal excitability and improve PASC neurocognitive symptoms. Here, we investigated the effects of this intervention in a case series of four patients with cognitive symptoms using the Assessment of PASC (A-PASC) inventory. The intervention consisted of 20-minute, 2mA, 20 daily sessions of bilateral prefrontal (anodal-left/cathodal-right) tDCS (1x1 Mini-CT, Soterix Medical, New York, NY) plus online cognitive training using the BrainHQ platform (Posit Science, San Francisco, Glenn Smith). Several neuropsychological domains were assessed at baseline and endpoint. After treatment, all participants described cognitive and emotional complaints decreasing. The neuropsychological assessment showed that the participants performed better for delayed and immediate recall in the verbal episodic memory task. They showed an improving trend in lexicon assessment, and in phonemic verbal fluency. The same was observed for the sustained attention task. Also, the participants showed a trend in becoming faster and more accurate in processing speed, and in executive function (inhibitory control, cognitive flexibility and time management). These are preliminary results from a pilot study that preceded an ongoing, double-blinded, randomized controlled trial comparing the effects of cognitive training combined with sham or active tDCS at University of Sao Paulo, Brazil. Research Category and Technology and Methods Clinical Research: 9. Transcranial Direct Current Stimulation (tDCS) Keywords: transcranial direct current stimulation, cognitive training, cognitive impairment, Post-Acute Sequelae of Sars-Cov2Copyright © 2023

Cognitive symptoms after COVID-19

Introduction: SARS-CoV-2 infection frequently causes neurological symptoms. Cognitive alterations are among the most frequent symptoms, and may persist beyond the acute phase of infection. Method(s): We conducted a narrative review of the literature. Result(s): Hospitalised patients, and especially critically ill patients, are at greater risk of developing cognitive symptoms. Post-COVID-19 cognitive symptoms, unlike those associated with other viral illnesses, have been observed in patients with mild infection, and present some atypical features. Cognitive symptoms may last longer in COVID-19 than in other infectious processes, and more frequently affect young people. Post-COVID-19 cognitive symptoms share common features with those described in chronic fatigue syndrome, including a similar profile with affective symptoms. Brief screening tests for cognitive impairment present suboptimal diagnostic performance, and standardised criteria are needed to ensure correct diagnosis. Post-COVID-19 cognitive impairment can have a significant impact on the patient's quality of life and functional independence, regardless of other post-COVID-19 symptoms. Currently, no specific treatments have been approved for post-COVID-19 cognitive impairment, although cognitive stimulation may be useful in some patients. Conclusion(s): Post-COVID-19 cognitive symptoms are common and are often associated with other systemic symptoms. Neuropsychological evaluation may be useful for diagnosis and to quantify their severity and long-term prognosis. Detailed, and individualised assessment of cognitive impairment may enable the design of treatment plans.Copyright © 2021 Sociedad Espanola de Neurologia

A Systematic Review and a Latin American Clinical Model for Teleneuropsychological Assessment.

OBJECTIVE: The objective of this study is to propose a TeleNP model for remote assessment and offer practical recommendations for clinical practice with patients in Mexico and Latin America, based on a systematic literature review and clinical experience. METHOD: A systematic review of studies from 2011 to 2021 in English and Spanish used TeleNP, teleneuropsychology, telepsychology, online, assessment, teleneuropsicología, and evaluación for the search; the databases examined included PubMed, BiDi UNAM, ScienceDirect, Google Scholar, and Wiley One Library; the Oxford Centre for Evidence-Based Medicine system was used to grade the levels of evidence. The experience of the last two years of students and faculty in the Master's and Doctoral Programs in Psychology, Clinical Neuropsychology Residency Program, was also used as a basis for this guide. RESULTS: We propose a clinical model for TeleNP assessment in Mexico and Latin America based on the review of 31 articles and the practice of professors and students of clinical neuropsychology. CONCLUSION: The proposed model describes a procedure and adaptations for home-to-home clinical practice in the neuropsychological assessment of Mexican patients that could also be used in other Latin American countries. Its reliability remains to be assessed, but this model and the suggestions proposed could be used in future studies and clinical trials for Mexican and Latin American populations.

The predictive role of fatigue and neuropsychological components on functional outcomes in COVID-19 after a multidisciplinary rehabilitation program.

OBJECTIVE: To verify the impact of altered cognitive functioning and higher levels of mental fatigue, both reported after coronavirus disease 2019 (COVID-19), on rehabilitation treatment outcomes. METHODS: In this real-practice retrospective pre-post intervention cohort study, cognitive functioning, measured through standardized neuropsychological measures, and individual levels of fatigue, depression and anxiety symptoms, were evaluated at admission to a rehabilitation program in individuals who had been hospitalized for COVID-19. The rehabilitation program effectiveness was measured through the Functional Independence Measure. RESULTS: Among the patient sample (n = 66), 87.88% reported experiencing high levels of fatigue at admission, while 16.67% reported depressive symptoms, and 22.73% reported anxiety symptoms. After rehabilitation, the sample displayed a significant decrease in the level of disability, in both the motor and cognitive subscales. Neuropsychological and psychological functioning did not play a predictive role. The 45 patients who received mechanical ventilation during intensive care, representing 68.18% of the sample, benefited more from rehabilitation treatment. CONCLUSIONS: The results support the importance of an early rehabilitation program after COVID-19 infection, independent of the initial neuropsychological and psychological functioning. Respiratory assistance may represent a crucial factor for short-term neuropsychological disease after-effects. Future studies on the long-term neuropsychological effect of COVID-19 infection on individual levels of disability are necessary.

Cognitive Deficits among Individuals Admitted to a Post-Acute Pneumological Rehabilitation Unit in Southern Italy after COVID-19 Infection.

(1) Background: We investigated the differences in the neuropsychological profile as well as the pneumological and motor functions in two groups of patients admitted to rehabilitation who received different respiratory support during their COVID-19 infection. (2) Methods: Group-1 (n = 18; 15 male, median age 67.5) consisted of patients who received non-invasive mechanical ventilation; Group-2 (n = 19; 16 male, median age 63) consisted of patients who received invasive mechanical ventilation. All patients underwent a neuropsychological assessment including Mini-Mental State Examination (MMSE), Frontal Assessment Battery (FAB), and the Repeatable Battery for the Assessment of Neuropsychological Status (R-BANS) to evaluate the patients' cognition. Depression and anxiety were also measured at admission and discharge to rehabilitation. (3) Results: At admission, patients impaired at MMSE were 44% in Group-1 and 5% in Group-2, while patients impaired at FAB were 88% in Group-1 and 26% in Group-2. Wilcoxon's effect size revealed meaningful differences between groups for FAB, R-BANS global score, immediate and delayed memory, and attention-coding task, with Group-2 performing better than Group-1 across all measures. At discharge, 52% of the 25 patients re-assessed still had mild to moderate cognitive deficits, while 19% had depression and 35% had anxiety. (4) Conclusions: Patients who received oxygen therapy experienced higher levels of acute and chronic stress compared to those who benefitted from invasive mechanical ventilation. Despite patients showing a meaningful improvement at discharge, cognitive impairment persisted in a great number of patients; therefore, long-term neuropsychological follow-up and treatment for COVID-19 patients are recommended.

Post-COVID-19 Syndrome is Rarely Associated with Damage of the Nervous System: Findings from a Prospective Observational Cohort Study in 171 Patients.

INTRODUCTION: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can affect multiple organs. Reports of persistent or newly emergent symptoms, including those related to the nervous system, have increased over the course of the pandemic, leading to the introduction of post-COVID-19 syndrome. However, this novel syndrome is still ill-defined and structured objectification of complaints is scarce. Therefore, we performed a prospective observational cohort study to better define and validate subjective neurological disturbances in patients with post-COVID-19 syndrome. METHODS: A total of 171 patients fulfilling the post-COVID-19 WHO Delphi consensus criteria underwent a comprehensive neurological diagnostic work-up including neurovascular, electrophysiological, and blood analysis. In addition, magnetic resonance imaging (MRI) and lumbar puncture were conducted in subgroups of patients. Furthermore, patients underwent neuropsychological, psychosomatic, and fatigue assessment. RESULTS: Patients were predominantly female, middle-aged, and had incurred mostly mild-to-moderate acute COVID-19. The most frequent post-COVID-19 complaints included fatigue, difficulties in concentration, and memory deficits. In most patients (85.8%), in-depth neurological assessment yielded no pathological findings. In 97.7% of the cases, either no diagnosis other than post COVID-19 syndrome, or no diagnosis likely related to preceding acute COVID-19 could be established. Sensory or motor complaints were more often associated with a neurological diagnosis other than post-COVID-19 syndrome. Previous psychiatric conditions were identified as a risk factor for developing post-COVID-19 syndrome. We found high somatization scores in our patient group that correlated with cognitive deficits and the extent of fatigue. CONCLUSIONS: Albeit frequently reported by patients, objectifiable affection of the nervous system is rare in post-COVID-19 syndrome. Instead, elevated levels of somatization point towards a pathogenesis potentially involving psychosomatic factors. However, thorough neurological assessment is important in this patient group in order to not miss neurological diseases other than post-COVID-19.

Limited evidence for neuropsychological dysfunction in patients initially affected by severe COVID-19.

BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), resulting in coronavirus disease 2019 (COVID-19), has caused a pandemic. There is now considerable evidence that neuropsychological functions could be affected. We further tested this hypothesis on a sample of post COVID-19 patients, who, initially, had been severely affected. METHODS: We tested 22 post COVID-19 patients who, after the intensive care unit (all but one), were admitted to our rehabilitation unit to be treated for severe post COVID-19 sequelae. All patients were administered a comprehensive neuropsychological battery including measures assessing perceptual, attentive, mnestic, linguistic, and executive functions, and overall cognitive status. The patients were also administered rehabilitation measures including scales for investigating aerobic capacity/endurance deficits, dyspnea, and fatigue. RESULTS: Our findings revealed that evidence of neuropsychological disorders in post COVID-19 patients was very limited. Furthermore, COVID-19 severity and other relevant variables were not correlated with patients' scores on the neuropsychological tests. CONCLUSIONS: We suggest that the relation between COVID-19 and neuropsychological disorders is unclear. New studies and metanalyses are highly required to shed light on this highly complex issue.

High-density EEG sleep correlates of cognitive and affective impairment at 12-month follow-up after COVID-19.

OBJECTIVE: To disentangle the pathophysiology of cognitive/affective impairment in Coronavirus Disease-2019 (COVID-19), we studied long-term cognitive and affective sequelae and sleep high-density electroencephalography (EEG) at 12-month follow-up in people with a previous hospital admission for acute COVID-19. METHODS: People discharged from an intensive care unit (ICU) and a sub-intensive ward (nonICU) between March and May 2020 were contacted between March and June 2021. Participants underwent cognitive, psychological, and sleep assessment. High-density EEG recording was acquired during a nap. Slow and fast spindles density/amplitude/frequency and source reconstruction in brain gray matter were extracted. The relationship between psychological and cognitive findings was explored with Pearson correlation. RESULTS: We enrolled 33 participants ( 17 nonICU) and 12 controls. We observed a lower Physical Quality of Life index, higher post-traumatic stress disorder (PTSD) score, and a worse executive function performance in nonICU participants. Higher PTSD and Beck Depression Inventory scores correlated with lower executive performance. The same group showed a reorganization of spindle cortical generators. CONCLUSIONS: Our results show executive and psycho-affective deficits and spindle alterations in COVID-19 survivors - especially in nonICU participants - after 12 months from discharge. SIGNIFICANCE: These findings may be suggestive of a crucial contribution of stress experienced during hospital admission on long-term cognitive functioning.

Cognitive dysfunction associated with COVID-19: A comprehensive neuropsychological study.

OBJECTIVE: Recent evidence suggests that patients suffering post-acute COVID syndrome frequently report cognitive complaints, but their characteristics and pathophysiology are unknown. This study aims to determine the characteristics of cognitive dysfunction in patients reporting cognitive complaints after COVID-19 and to evaluate the correlation between cognitive function and anxiety, depression, sleep, and olfactory function. METHODS: Cross-sectional study involving 50 patients with COVID-19 reporting cognitive complaints 9.12 ± 3.46 months after the acute infection. Patients were evaluated with a comprehensive neuropsychological protocol, and scales of fatigue, depression, anxiety, sleep and an olfactory test. Normative data and an age- and education matched healthy control group were used for comparison. RESULTS: COVID-19 patients showed a diminished performance on several tests evaluating attention and executive function, with alterations in processing speed, divided attention, selective attention, visual vigilance, intrinsic alertness, working memory, and inhibition; episodic memory; and visuospatial processing. Cognitive performance was correlated with olfactory dysfunction, and sleep quality and anxiety to a lesser extent, but not depression. CONCLUSIONS: Patients with COVID-19 reporting cognitive symptoms showed a reduced cognitive performance, especially in the attention-concentration and executive functioning, episodic memory, and visuospatial processing domains. Future studies are necessary to disentangle the specific mechanisms associated with COVID-19 cognitive dysfunction.