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1.
J Nucl Med ; 63(7): 1058-1063, 2022 07.
Article in English | MEDLINE | ID: covidwho-1923992

ABSTRACT

During the coronavirus disease 2019 (COVID-19) pandemic, Long COVID syndrome, which impairs patients through cognitive deficits, fatigue, and exhaustion, has become increasingly relevant. Its underlying pathophysiology, however, is unknown. In this study, we assessed cognitive profiles and regional cerebral glucose metabolism as a biomarker of neuronal function in outpatients with long-term neurocognitive symptoms after COVID-19. Methods: Outpatients seeking neurologic counseling with neurocognitive symptoms persisting for more than 3 mo after polymerase chain reaction (PCR)-confirmed COVID-19 were included prospectively between June 16, 2020, and January 29, 2021. Patients (n = 31; age, 53.6 ± 2.0 y) in the long-term phase after COVID-19 (202 ± 58 d after positive PCR) were assessed with a neuropsychologic test battery. Cerebral 18F-FDG PET imaging was performed in 14 of 31 patients. Results: Patients self-reported impaired attention, memory, and multitasking abilities (31/31), word-finding difficulties (27/31), and fatigue (24/31). Twelve of 31 patients could not return to the previous level of independence/employment. For all cognitive domains, average group results of the neuropsychologic test battery showed no impairment, but deficits (z score < -1.5) were present on a single-patient level mainly in the domain of visual memory (in 7/31; other domains ≤ 2/31). Mean Montreal Cognitive Assessment performance (27/30 points) was above the cutoff value for detection of cognitive impairment (<26 points), although 9 of 31 patients performed slightly below this level (23-25 points). In the subgroup of patients who underwent 18F-FDG PET, we found no significant changes of regional cerebral glucose metabolism. Conclusion: Long COVID patients self-report uniform symptoms hampering their ability to work in a relevant fraction. However, cognitive testing showed minor impairments only on a single-patient level approximately 6 mo after the infection, whereas functional imaging revealed no distinct pathologic changes. This clearly deviates from previous findings in subacute COVID-19 patients, suggesting that underlying neuronal causes are different and possibly related to the high prevalence of fatigue.


Subject(s)
COVID-19 , Cerebrum , Glucose , COVID-19/complications , COVID-19/psychology , Cerebrum/metabolism , Fatigue , Fluorodeoxyglucose F18/metabolism , Glucose/metabolism , Humans , Middle Aged , Neuropsychological Tests , Positron-Emission Tomography
2.
Laryngorhinootologie ; 101(9): 729-735, 2022 09.
Article in German | MEDLINE | ID: covidwho-1585705

ABSTRACT

INTRODUCTION: The COVID-19 pandemic changed medical education: teaching has been mostly converted to online mode. Our aim is to offer a complete high-quality curriculum despite the fact of worldwide cutbacks in education. METHODS: The department of otorhinolaryngology introduced case-based learning (CBL). CBL is a learning and teaching approach that prepares students for clinical practice through the use of authentic clinical cases and places them in the role of decision maker. CBL combines theory and practice to prepare students as good as possible without intern shadowing. The students were asked to evaluate CBL as a digital format and as a teaching tool for future clinical work and preparation for the ORL exam. RESULTS: The majority of students (>90%) rated the CBL as a successful digital format. Most students also strongly agreed or agreed that CBL is a good preparation for their future clinical work (>90%) and the ORL exam (>80%). 100% of students CBL confirmed, that they learned something new. CONCLUSION: Following successful introduction of CBL we will implement a new teaching format. The "ORL virtual outpatient Dept." will include information from virtual, anonymized case studies. We choose diagnosis included in the "ORL virtual outpatient Dept." according to the most common ORL disorders encountered by primary care physicians. The "ORL virtual outpatient Dept." can only bridge the absence of practical training, and, in the future, serve as an additional preparation.


Subject(s)
COVID-19 , Students, Medical , COVID-19/epidemiology , Curriculum , Humans , Learning , Outpatients , Pandemics
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