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Meyer-Baese L, Anumba N, Bolt T, Daley L, LaGrow TJ, Zhang X, Xu N, Pan WJ, Schumacher E, Keilholz S. Variation in the Distribution of Large-scale Spatiotemporal Patterns of Activity Across Brain States. bioRxiv 2024:2024.04.26.591295. [PMID: 38746246 PMCID: PMC11092498 DOI: 10.1101/2024.04.26.591295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
A few large-scale spatiotemporal patterns of brain activity (quasiperiodic patterns or QPPs) account for most of the spatial structure observed in resting state functional magnetic resonance imaging (rs-fMRI). The QPPs capture well-known features such as the evolution of the global signal and the alternating dominance of the default mode and task positive networks. These widespread patterns of activity have plausible ties to neuromodulatory input that mediates changes in nonlocalized processes, including arousal and attention. To determine whether QPPs exhibit variations across brain conditions, the relative magnitude and distribution of the three strongest QPPs were examined in two scenarios. First, in data from the Human Connectome Project, the relative incidence and magnitude of the QPPs was examined over the course of the scan, under the hypothesis that increasing drowsiness would shift the expression of the QPPs over time. Second, using rs-fMRI in rats obtained with a novel approach that minimizes noise, the relative incidence and magnitude of the QPPs was examined under three different anesthetic conditions expected to create distinct types of brain activity. The results indicate that both the distribution of QPPs and their magnitude changes with brain state, evidence of the sensitivity of these large-scale patterns to widespread changes linked to alterations in brain conditions.
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Bley M, Bolt T, Fertmann J, Kauffmann-Guerrero D, Karrasch S, Kovacs J, Schneider C, Schubert-Fritschle G, Sellmer L, Walter J, Tufman A. 123P Thymic neoplasms in Bavaria between 2002 and 2016: Has there been progress? ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.101069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Kahnert K, Lempert LM, Behr J, Elsner L, Bolt T, Tufman A, Kauffmann-Guerrero D. Hyperinflation and reduced diffusing capacity predict prognosis in SCLC: value of extended pre-therapeutic lung function testing. Ther Adv Respir Dis 2023; 17:17534666231199670. [PMID: 37997884 PMCID: PMC10676075 DOI: 10.1177/17534666231199670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/03/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Small cell lung cancer (SCLC) is characterized by aggressive growth and poor prognosis. Although SCLC affects nearly exclusively heavy smokers and leads to frequent respiratory symptoms, the impact of pre-therapeutic lung function testing in SCLC is sparely investigated until now. Therefore, we sought to examine whether we could find prognostic markers in pre-therapeutic lung function testing of SCLC patients. PATIENTS AND METHODS We retrospectively analysed a cohort of 205 patients with the diagnosis of SCLC between 2010 and 2018. Pre-therapeutic values of spirometry, body plethysmography and measurement of diffusing capacity was extracted from patients' charts. Comparisons between groups were performed using the Mann-Whitney U-test or by chi-square tests as appropriate. Kaplan-Meier analyses and COX-regression models were performed to correlate lung function parameters with patients' outcome. RESULTS Airway obstruction itself, or the diagnosis chronic obstructive pulmonary disease (COPD) based on GOLD definitions did not correlate with survival in SCLC patients. Hyperinflation measured by increased residual volume and residual volume to total lung capacity ratio (log-rank p < 0.001) and reduced diffusing capacity (log-rank p = 0.007) were associated with reduced survival. Furthermore, patients with hyperinflation as well as impairments in gas exchange representing an emphysematic phenotype had the worst outcome (log-rank p < 0.001). CONCLUSION We recommend including body plethysmography and measurement of diffusing capacity in the pre-therapeutic assessment of SCLC patients. Our findings suggest that reduction of hyperinflation may lead to better outcome in SCLC patients. Thus, in addition to effective tumour therapy, adequate therapy of the comorbidity of COPD should also be provided. In particular, measures to reduce hyperinflation by means of dual bronchodilation as well as respiratory physiotherapy should be further assessed in this setting.
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Affiliation(s)
- Kathrin Kahnert
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | | | - Jürgen Behr
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Laura Elsner
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Toki Bolt
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Amanda Tufman
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Diego Kauffmann-Guerrero
- Department of Internal Medicine V (Pneumology/Thoracic Oncology), University Hospital, LMU Munich, Ziemssenstraße 1, Munich 80336, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
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Bolt T, Tufman A, Sellmer L, Kahnert K, Mertsch P, Kovács J, Kauffmann-Guerrero D, Munker D, Manapov F, Schneider C, Behr J, Walter J. Changes in Behavior After Vaccination and Opinions Toward Mask Wearing: Thoracic Oncology Patient–Reported Experiences During the COVID-19 Pandemic. Clin Med Insights Oncol 2022; 16:11795549221123618. [PMID: 36176285 PMCID: PMC9515761 DOI: 10.1177/11795549221123618] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 08/17/2022] [Indexed: 11/15/2022] Open
Abstract
Background: The COVID-19 vaccines, face masks, and social distancing are effective interventions to prevent SARS-CoV-2 infections. In this study, we aimed to determine lung cancer patients’ attitudes toward vaccination, changes in behavior after vaccination, and willingness to continue mask wearing after the pandemic. Methods: We sent out questionnaires to 220 thoracic oncology patients treated at our lung cancer center in May 2021. The questionnaire focused on patients’ vaccination status, self-reported experiences surrounding vaccination, and assessed changes in behaviors before and after vaccination as well as opinions toward mask wearing after the pandemic. Results are presented as absolute and relative frequencies and means with standard deviation and compared using t test, paired t test, and analysis of variance test as well as chi2 test, and Fisher exact text. Results: About 91.0% of patients reported having received at least 1 vaccination. About 73.3% of patients reported having at least 1 reaction to the vaccination. The most common reactions were pain at the injection site, fatigue, and headache. After vaccination, patients increased contact with family and friends, use of public transport, and grocery shopping. Overall, the level of willingness to wear masks beyond the end of the pandemic differed according to vaccination status. Conclusions: Acceptance of the COVID-19 vaccination among thoracic oncology patients in Germany was high. Overall, patients with thoracic malignancies tolerated the COVID-19 vaccination well. Rate of adverse reaction was not higher compared with the general population. After the vaccination, patients increased social contacts and usage of public transport. These changes suggest positive psychological effects on quality of life. While reducing social distancing can increase the risk of infection, our results indicate that an extension of mask mandates after the pandemic would likely be accepted by a majority of thoracic oncology patients, suggesting that our cohort was still aware and in support of other measure of protection.
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Affiliation(s)
- Toki Bolt
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Amanda Tufman
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Laura Sellmer
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Kathrin Kahnert
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Pontus Mertsch
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Julia Kovács
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
- Department of Thoracic Surgery, Thoracic Oncology Centre Munich, Ludwig-Maximilian University of Munich, München, Germany
| | - Diego Kauffmann-Guerrero
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Dieter Munker
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
| | - Farkhad Manapov
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
- Department of Radiation Oncology, Thoracic Oncology Centre Munich, Ludwig-Maximilian University of Munich, München, Germany
| | - Christian Schneider
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
- Department of Thoracic Surgery, Thoracic Oncology Centre Munich, Ludwig-Maximilian University of Munich, München, Germany
| | - Juergen Behr
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
| | - Julia Walter
- Department of Medicine V, University Hospital, LMU Munich, München, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), München, Germany
- Department of Thoracic Surgery, Thoracic Oncology Centre Munich, Ludwig-Maximilian University of Munich, München, Germany
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