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Goertz L, Hohenstatt S, Vollherbst DF, Weyland CS, Nikoubashman O, Styczen H, Gronemann C, Weiss D, Kaschner M, Pflaeging M, Siebert E, Zopfs D, Kottlors J, Pennig L, Schlamann M, Bohner G, Liebig T, Turowski B, Dorn F, Deuschl C, Wiesmann M, Möhlenbruch MA, Kabbasch C. Safety and efficacy of coated flow diverters in the treatment of ruptured intracranial aneurysms: a retrospective multicenter study. J Neurointerv Surg 2024:jnis-2024-021516. [PMID: 38569886 DOI: 10.1136/jnis-2024-021516] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND This multicenter study evaluated the safety and efficacy of coated flow diverters (cFDs) for the treatment of ruptured intracranial aneurysms. METHODS Consecutive patients treated with different cFDs for ruptured aneurysms under tirofiban at eight neurovascular centers between 2016 and 2023 were retrospectively analyzed. The majority of patients were loaded with dual antiplatelet therapy after the treatment. Aneurysm occlusion was determined using the O'Kelly-Marotta (OKM) grading scale. Primary outcome measures were major procedural complications and aneurysmal rebleeding during hospitalization. RESULTS The study included 60 aneurysms (posterior circulation: 28 (47%)) with a mean size of 5.8±4.7 mm. Aneurysm morphology was saccular in 28 (47%), blister-like in 12 (20%), dissecting in 13 (22%), and fusiform in 7 (12%). Technical success was 100% with a mean of 1.1 cFDs implanted per aneurysm. Adjunctive coiling was performed in 11 (18%) aneurysms. Immediate contrast retention was observed in 45 (75%) aneurysms. There was 1 (2%) major procedural complication (a major stroke, eventually leading to death) and no aneurysmal rebleeding. A good outcome (modified Rankin Scale 0-2) was achieved in 40 (67%) patients. At a mean follow-up of 6 months, 27/34 (79%) aneurysms were completely occluded (OKM D), 3/34 (9%) had an entry remnant (OKM C), and 4/34 (12%) had residual filling (OKM A or B). There was 1 (3%) severe in-stent stenosis during follow-up that was treated with balloon angioplasty. CONCLUSIONS Treatment of ruptured aneurysms with cFDs was reasonably safe and efficient and thus represents a valid treatment option, especially for complex cases.
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Affiliation(s)
- Lukas Goertz
- Department of Radiology and Neuroradiology, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
| | - Sophia Hohenstatt
- Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Dominik F Vollherbst
- Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany
| | | | - Omid Nikoubashman
- Department of Neuroradiology, University Hospital Aachen, Aachen, Germany
| | - Hanna Styczen
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | | | - Daniel Weiss
- Department of Neuroradiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Marius Kaschner
- Department of Neuroradiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Muriel Pflaeging
- Department of Neuroradiology, University Hospital Munich (LMU), Munich, Germany
| | - Eberhard Siebert
- Department of Neuroradiology, University Hospital Berlin (Charité), Berlin, Germany
| | - David Zopfs
- Department of Radiology and Neuroradiology, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
| | - Jonathan Kottlors
- Department of Radiology and Neuroradiology, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
| | - Lenhard Pennig
- Department of Radiology and Neuroradiology, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
| | - Marc Schlamann
- Department of Radiology and Neuroradiology, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
| | - Georg Bohner
- Department of Neuroradiology, University Hospital Berlin (Charité), Berlin, Germany
| | - Thomas Liebig
- Department of Neuroradiology, University Hospital Munich (LMU), Munich, Germany
| | - Bernd Turowski
- Department of Neuroradiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Franziska Dorn
- Department of Neuroradiology, University Hospital Bonn, Bonn, Germany
| | - Cornelius Deuschl
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Martin Wiesmann
- Department of Neuroradiology, University Hospital Aachen, Aachen, Germany
| | - Markus A Möhlenbruch
- Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Christoph Kabbasch
- Department of Radiology and Neuroradiology, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
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Hopper SE, Weiss D, Mikush N, Jiang B, Spronck B, Cavinato C, Humphrey JD, Figueroa CA. Central Artery Hemodynamics in Angiotensin II-Induced Hypertension and Effects of Anesthesia. Ann Biomed Eng 2024; 52:1051-1066. [PMID: 38383871 DOI: 10.1007/s10439-024-03440-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/30/2023] [Indexed: 02/23/2024]
Abstract
Systemic hypertension is a strong risk factor for cardiovascular, neurovascular, and renovascular diseases. Central artery stiffness is both an initiator and indicator of hypertension, thus revealing a critical relationship between the wall mechanics and hemodynamics. Mice have emerged as a critical animal model for studying effects of hypertension and much has been learned. Regardless of the specific mouse model, data on changes in cardiac function and hemodynamics are necessarily measured under anesthesia. Here, we present a new experimental-computational workflow to estimate awake cardiovascular conditions from anesthetized data, which was then used to quantify effects of chronic angiotensin II-induced hypertension relative to normotension in wild-type mice. We found that isoflurane anesthesia had a greater impact on depressing hemodynamics in angiotensin II-infused mice than in controls, which led to unexpected results when comparing anesthetized results between the two groups of mice. Through comparison of the awake simulations, however, in vivo relevant effects of angiotensin II-infusion on global and regional vascular structure, properties, and hemodynamics were found to be qualitatively consistent with expectations. Specifically, we found an increased in vivo vascular stiffness in the descending thoracic aorta and suprarenal abdominal aorta, leading to increases in pulse pressure in the distal aorta. These insights allow characterization of the impact of regionally varying vascular remodeling on hemodynamics and mouse-to-mouse variations due to induced hypertension.
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Affiliation(s)
- S E Hopper
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - D Weiss
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - N Mikush
- Translational Research Imaging Center, Yale School of Medicine, New Haven, CT, USA
| | - B Jiang
- Department of Thyroid and Vascular Surgery, 1st Hospital of China Medical University, Shen Yang, China
| | - B Spronck
- Department of Biomedical Engineering, Maastricht University, Maastricht, The Netherlands
| | - C Cavinato
- LMGC, Universite' Montpellier, CNRS, Montpellier, France
| | - J D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.
| | - C A Figueroa
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
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Weiss D, Lang H, Rubbert C, Jannusch K, Kaschner M, Ivan VL, Caspers J, Turowski B, Jansen R, Lee JI, Ruck T, Meuth SG, Gliem M. Diagnostic Value of Perfusion Parameters for Differentiation of Underlying Etiology in Internal Carotid Artery Occlusions. Clin Neuroradiol 2024; 34:219-227. [PMID: 37884790 PMCID: PMC10881783 DOI: 10.1007/s00062-023-01349-0] [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: 12/27/2022] [Accepted: 09/08/2023] [Indexed: 10/28/2023]
Abstract
PURPOSE Occlusions of the internal carotid artery (ICA) may be caused by dissection, embolic or macroangiopathic pathogenesis, which partially influences the treatment; however, inferring the underlying etiology in computed tomography angiography can be challenging. In this study, we investigated whether computed tomography perfusion (CT-P) parameters could be used to distinguish between etiologies. METHODS Patients who received CT‑P in acute ischemic stroke due to ICA occlusion between 2012 and 2019 were retrospectively analyzed. Group comparisons between etiologies regarding the ratios of CT‑P parameters between both hemispheres for relative cerebral blood volume (rCBV), relative cerebral blood flow (rCBF), time to maximum (Tmax), and mean transit time (MTT) were calculated by one-factorial analysis of variance (ANOVA) and compared by pairwise Bonferroni post hoc tests. An receiver operating characteristics (ROC) analysis was performed if differences in group comparisons were found. Multinomial logistic regression (MLR) including pretherapeutic parameters was calculated for etiologies. RESULTS In this study 69 patients (age = 70 ± 14 years, dissection = 10, 14.5%, embolic = 19, 27.5% and macroangiopathic = 40, 58.0%) were included. Group differences in ANOVA were only found for MTT ratio (p = 0.003, η2 = 0.164). In the post hoc test, MTT ratio showed a differentiability between embolic and macroangiopathic occlusions (p = 0.002). ROC analysis for differentiating embolic and macroangiopathic ICA occlusions based on MTT ratio showed an AUC of 0.77 (p < 0.001, CI = 0.65-0.89) and a cut-off was yielded at a value of 1.15 for the MTT ratio (sensitivity 73%, specificity 68%). The MLR showed an overall good model performance. CONCLUSION It was possible to differentiate between patients with embolic and macroangiopathic ICA occlusions based on MTT ratios and to define a corresponding cut-off. Differentiation from patients with dissection versus the other etiologies was not possible by CT‑P parameters in our sample.
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Affiliation(s)
- Daniel Weiss
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
| | - Henrik Lang
- Department of Neurology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Christian Rubbert
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Kai Jannusch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Marius Kaschner
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Vivien Lorena Ivan
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Julian Caspers
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Bernd Turowski
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Robin Jansen
- Department of Neurology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - John-Ih Lee
- Department of Neurology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Tobias Ruck
- Department of Neurology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Sven Günther Meuth
- Department of Neurology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Michael Gliem
- Department of Neurology, Medical Faculty, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
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Jarzynka S, Makarewicz O, Weiss D, Minkiewicz-Zochniak A, Iwańska A, Skorupa W, Padzik M, Augustynowicz-Kopeć E, Olędzka G. The Impact of Pseudomonas aeruginosa Infection in Adult Cystic Fibrosis Patients-A Single Polish Centre Study. Pathogens 2023; 12:1440. [PMID: 38133323 PMCID: PMC10748198 DOI: 10.3390/pathogens12121440] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/06/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Pseudomonas aeruginosa (PA) is one of the most predominant pathogens of lung infections, often causing exacerbations in adult patients with cystic fibrosis (CF). MATERIALS AND METHODS Microbiological characterization of 74 PA isolates and to evaluate the correlations between the bacterial features and 44 adult Polish CF cohort clinical parameters. RESULTS The most common variant in the CF transmembrane conductance regulator (CFTR) gene was F508del (76.3%), followed by 3849+10kbC>T (26.3%). A total of 39.4% of the PA isolates showed multiple resistances. In patients with parameters pointing to a decline in lung function, there was a statistically significant moderate correlation with β-lactam resistance and a weak correlation between hospital frequency and colistin resistance. The mucoidity did not correlate with the biofilm formation ability, which showed 41.9% of the isolates. Proteolytic activity, observed in 60.8% of the clinical isolates, was weakly associated with motility detected in 78.4% of the strains. The genetic profiles of the PA were highly heterogeneous, and a weak positive correlation was established between cluster group and biofilm formation. CONCLUSION The findings suggest that there is a high variety in P. aeruginosa populations in adult CF patients. There is a need to monitor PA strains in groups of patients with cystic fibrosis, in particular, in terms of the occurrence of antibiotic resistance related to a decline in lung function.
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Affiliation(s)
- Sylwia Jarzynka
- Department of Medical Biology, Medical University of Warsaw, Litewska 14/16, 00-575 Warsaw, Poland; (A.M.-Z.); (M.P.); (G.O.)
| | - Oliwia Makarewicz
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany; (O.M.); (D.W.)
| | - Daniel Weiss
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany; (O.M.); (D.W.)
| | - Anna Minkiewicz-Zochniak
- Department of Medical Biology, Medical University of Warsaw, Litewska 14/16, 00-575 Warsaw, Poland; (A.M.-Z.); (M.P.); (G.O.)
| | - Agnieszka Iwańska
- Department of Microbiology, National Institute of Tuberculosis and Lung Diseases, Plocka 26, 01-138 Warsaw, Poland; (A.I.); (E.A.-K.)
| | - Wojciech Skorupa
- First Department of Lung Diseases, National Institute of Tuberculosis and Lung Diseases, Plocka 26, 01-138 Warsaw, Poland;
| | - Marcin Padzik
- Department of Medical Biology, Medical University of Warsaw, Litewska 14/16, 00-575 Warsaw, Poland; (A.M.-Z.); (M.P.); (G.O.)
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, National Institute of Tuberculosis and Lung Diseases, Plocka 26, 01-138 Warsaw, Poland; (A.I.); (E.A.-K.)
| | - Gabriela Olędzka
- Department of Medical Biology, Medical University of Warsaw, Litewska 14/16, 00-575 Warsaw, Poland; (A.M.-Z.); (M.P.); (G.O.)
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Hill NTM, Bouras H, Too LS, Perry Y, Lin A, Weiss D. Association between mental health workforce supply and clusters of high and low rates of youth suicide: An Australian study using suicide mortality data from 2016 to 2020. Aust N Z J Psychiatry 2023; 57:1465-1474. [PMID: 37608497 PMCID: PMC10619187 DOI: 10.1177/00048674231192764] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
OBJECTIVE To examine the association between mental health workforce supply and spatial clusters of high versus low incidence of youth suicide. METHODS A cross-sectional analysis of spatial suicide clusters in young Australians (aged 10-25) from 2016 to 2020 was conducted using the scan statistic and suicide data from the National Coronial Information System. Mental health workforce was extracted from the 2020 National Health Workforce Dataset by local government areas. The Geographic Index of Relative Supply was used to estimate low and moderate-to-high mental health workforce supply for clusters characterised by a high and low incidence of suicide (termed suicide hotspots and coldspots, respectively). Univariate and multivariate logistic regression was used to determine the association between suicide clusters and a range of sociodemographic characteristics including mental health workforce supply. RESULTS Eight suicide hotspots and two suicide coldspots were identified. The multivariate analysis showed low mental health workforce supply was associated with increased odds of being involved in a suicide hotspot (adjusted odds ratio = 8.29; 95% confidence interval = 5.20-13.60), followed by residential remoteness (adjusted odds ratio = 2.85; 95% confidence interval = 1.68-4.89), and illicit drug consumption (adjusted odds ratio = 1.97; 1.24-3.11). Both coldspot clusters occurred in areas with moderate-to-high mental health workforce supply. CONCLUSION Findings highlight the potential risk and protective roles that mental health workforce supply may play in the spatial distributions of youth suicide clusters. These findings have important implications for the provision of postvention and the prevention of suicide clusters.
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Affiliation(s)
- NTM Hill
- Telethon Kids Institute, Nedlands, WA, Australia
- Centre for Child Health Research, The University of Western Australia, Crawley, WA, Australia
- Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - H Bouras
- Telethon Kids Institute, Nedlands, WA, Australia
| | - LS Too
- Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - Y Perry
- Telethon Kids Institute, Nedlands, WA, Australia
- Centre for Child Health Research, The University of Western Australia, Crawley, WA, Australia
| | - A Lin
- Telethon Kids Institute, Nedlands, WA, Australia
- Centre for Child Health Research, The University of Western Australia, Crawley, WA, Australia
| | - D Weiss
- Telethon Kids Institute, Nedlands, WA, Australia
- Curtin School of Population Health, Curtin University, Bentley, WA, Australia
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Auffret M, Weiss D, Stocchi F, Vérin M, Jost WH. Access to device-aided therapies in advanced Parkinson's disease: navigating clinician biases, patient preference, and prognostic uncertainty. J Neural Transm (Vienna) 2023; 130:1411-1432. [PMID: 37436446 PMCID: PMC10645670 DOI: 10.1007/s00702-023-02668-9] [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: 05/04/2023] [Accepted: 06/24/2023] [Indexed: 07/13/2023]
Abstract
Device-aided therapies (DAT), which include deep brain stimulation and pump-based continuous dopaminergic stimulation with either levodopa or apomorphine, are among the major advances in the clinical management of Parkinson's disease (PD). Although DAT are being increasingly offered earlier in the disease course, their classical indication remains advanced PD. Theoretically, every patient should be offered transition to DAT when faced with refractory motor and nonmotor fluctuations and functional decline. Worldwide clinical reality is far from these ideal, and, therefore, question the "real-world" equal opportunity of access to DAT for PD patients with advanced PD-even within a single health care system. Differences in access to care, referral pattern (timing and frequency), as well as physician biases (unconscious/implicit or conscious/explicit bias), and patients' preferences or health-seeking behaviour are to be considered. Compared to DBS, little information is available concerning infusion therapies, as well as neurologists' and patients' attitudes towards them. This viewpoint aims to be thought-provoking and to assist clinicians in moving through the process of DAT selection, by including in their decision algorithm their own biases, patient perspective, ethical concerns as well as the current unknowns surrounding PD prognosis and DAT-related long-term side effects for a given patient.
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Affiliation(s)
- Manon Auffret
- France Développement Electronique (FDE), Monswiller, France.
- Institut des Neurosciences Cliniques de Rennes (INCR), Rennes, France.
- Behavior and Basal Ganglia Research Unit, CIC-IT, CIC1414, Pontchaillou University Hospital and University of Rennes, Rennes, France.
| | - Daniel Weiss
- Centre for Neurology, Department for Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - Fabrizio Stocchi
- University San Raffaele Roma and Institute of Research and Medical Care IRCCS San Raffaele Roma, Rome, Italy
| | - Marc Vérin
- Institut des Neurosciences Cliniques de Rennes (INCR), Rennes, France
- Behavior and Basal Ganglia Research Unit, CIC-IT, CIC1414, Pontchaillou University Hospital and University of Rennes, Rennes, France
- Neurology Department, Pontchaillou University Hospital, rue Henri Le Guilloux, 35000, Rennes, France
| | - Wolfgang H Jost
- Parkinson-Klinik Ortenau, Kreuzbergstr. 12-16, 77709, Wolfach, Germany
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Jenner P, Falup-Pecurariu C, Leta V, Verin M, Auffret M, Bhidayasiri R, Weiss D, Borovečki F, Jost WH. Adopting the Rumsfeld approach to understanding the action of levodopa and apomorphine in Parkinson's disease. J Neural Transm (Vienna) 2023; 130:1337-1347. [PMID: 37210460 PMCID: PMC10645644 DOI: 10.1007/s00702-023-02655-0] [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: 04/04/2023] [Accepted: 05/14/2023] [Indexed: 05/22/2023]
Abstract
Dopaminergic therapies dominate the treatment of the motor and non-motor symptoms of Parkinson's disease (PD) but there have been no major advances in therapy in many decades. Two of the oldest drugs used appear more effective than others-levodopa and apomorphine-but the reasons for this are seldom discussed and this may be one cause for a lack of progress. This short review questions current thinking on drug action and looks at whether adopting the philosophy of ex-US Secretary of State Donald Rumsfeld reveals 'unknown' aspects of the actions of levodopa and apomorphine that provide clues for a way forward. It appears that both levodopa and apomorphine have a more complex pharmacology than classical views would suggest. In addition, there are unexpected facets to the mechanisms through which levodopa acts that are either forgotten as 'known unknowns' or ignored as 'unknown unknowns'. The conclusion reached is that we may not know as much as we think about drug action in PD and there is a case for looking beyond the obvious.
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Affiliation(s)
- P Jenner
- Faculty of Life Sciences and Medicine, Institute of Pharmaceutical Sciences, King's College London, London, SE1 1UL, UK.
| | - C Falup-Pecurariu
- Department of Neurology, Transylvania University, 500036, Brasov, Romania
| | - V Leta
- Parkinson's Foundation Center of Excellence at King's College Hospital; Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College London and National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre, Institute of Psychology, Psychiatry and Neurosciences, King's College London, London, UK
| | - M Verin
- Institut des Neurosciences Cliniques de Rennes (INCR); Behavior and Basal Ganglia Research Unit, CIC-IT, CIC1414, Pontchaillou University Hospital and University of Rennes, Rennes, France
| | - M Auffret
- Institut des Neurosciences Cliniques de Rennes (INCR); Behavior and Basal Ganglia Research Unit, CIC-IT, CIC1414, Pontchaillou University Hospital and University of Rennes, Rennes, France
- France Développement Electronique (FDE), Monswiller, France
| | - Roongroj Bhidayasiri
- Department of Medicine, Faculty of Medicine, Chulalongkorn Centre of Excellence for Parkinson's Disease and Related Disorders, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, 10330, Thailand
- The Academy of Science, The Royal Society of Thailand, Bangkok, 10330, Thailand
| | - D Weiss
- Department for Neurodegenerative Diseases, Centre for Neurology, Hertie-Institute for Clinical Brain Research, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - F Borovečki
- Division for Neurodegenerative Diseases and Neurogenomics, Department of Neurology, University Hospital Centre Zagreb, 10000, Zagreb, Croatia
| | - W H Jost
- Parkinson-Klinik Ortenau, Kreuzbergstr. 12-16, 77709, Wolfach, Germany
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Jannusch K, Morawitz J, Schweiger B, Weiss D, Schimmöller L, Minko P, Herrmann K, Fendler WP, Quick HH, Antoch G, Umutlu L, Kirchner J, Bruckmann NM. [ 18F]FDG PET/MRI in children suffering from lymphoma: does MRI contrast media make a difference? Eur Radiol 2023; 33:8366-8375. [PMID: 37338559 PMCID: PMC10598113 DOI: 10.1007/s00330-023-09840-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/07/2023] [Accepted: 04/14/2023] [Indexed: 06/21/2023]
Abstract
OBJECTIVES Evaluate the influence of an MRI contrast agent application on primary and follow-up staging in pediatric patients with newly diagnosed lymphoma using [18F]FDG PET/MRI to avoid adverse effects and save time and costs during examination. METHODS A total of 105 [18F]FDG PET/MRI datasets were included for data evaluation. Two different reading protocols were analyzed by two experienced readers in consensus, including for PET/MRI-1 reading protocol unenhanced T2w and/or T1w imaging, diffusion-weighted imaging (DWI), and [18F]FDG PET imaging and for PET/MRI-2 reading protocol an additional T1w post contrast imaging. Patient-based and region-based evaluation according to the revised International Pediatric Non-Hodgkin's Lymphoma (NHL) Staging System (IPNHLSS) was performed, and a modified standard of reference was applied comprising histopathology and previous and follow-up cross-sectional imaging. Differences in staging accuracy were assessed using the Wilcoxon and McNemar tests. RESULTS In patient-based analysis, PET/MRI-1 and PET/MRI-2 both determined a correct IPNHLSS tumor stage in 90/105 (86%) exams. Region-based analysis correctly identified 119/127 (94%) lymphoma-affected regions. Sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy for PET/MRI-1 and PET/MRI-2 were 94%, 97%, 90%, 99%, 97%, respectively. There were no significant differences between PET/MRI-1 and PET/MRI-2. CONCLUSIONS The use of MRI contrast agents in [18F]FDG PET/MRI examinations has no beneficial effect in primary and follow-up staging of pediatric lymphoma patients. Therefore, switching to a contrast agent-free [18F]FDG PET/MRI protocol should be considered in all pediatric lymphoma patients. CLINICAL RELEVANCE STATEMENT This study gives a scientific baseline switching to a contrast agent-free [18F]FDG PET/MRI staging in pediatric lymphoma patients. This could avoid side effects of contrast agents and saves time and costs by a faster staging protocol for pediatric patients. KEY POINTS • No additional diagnostic benefit of MRI contrast agents at [18F]FDG PET/MRI examinations of pediatric lymphoma primary and follow-up staging • Highly accurate primary and follow-up staging of pediatric lymphoma patients at MRI contrast-free [18F]FDG PET/MRI.
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Affiliation(s)
- Kai Jannusch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Janna Morawitz
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Bernd Schweiger
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Daniel Weiss
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Lars Schimmöller
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Peter Minko
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Wolfgang P Fendler
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Harald H Quick
- High-Field and Hybrid MR Imaging, University Hospital Essen, University Duisburg-Essen, 45147, Essen, Germany
- Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, 45141, Essen, Germany
| | - Gerald Antoch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Lale Umutlu
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Julian Kirchner
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany.
| | - Nils-Martin Bruckmann
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
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Jannusch K, Steuwe A, Schimmöller L, Dietzel F, Wilms LM, Weiss D, Ziayee F, Fehm TN, Schlimgen C, Poth V, Ziegler RT, Minko P. Endovascular coil-embolization of an unruptured, true UAA during early pregnancy- a case report. CVIR Endovasc 2023; 6:50. [PMID: 37870638 PMCID: PMC10593720 DOI: 10.1186/s42155-023-00398-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023] Open
Abstract
BACKGROUND True uterine artery aneurysms, especially during pregnancy, are a rare entity and not well understood. Clinical symptoms are unspecific pelvic pain and pressure. Diagnosis can be confirmed by transvaginal color-coded-sonography and/or magnetic resonance imaging. Because of potential risk of rupture, immediate interdisciplinary discussion and treatment planning in the best interests of both mother and child is crucial. CASE PRESENTATION We present a 31-year-old pregnant woman with increasing pelvic pain and pressure. Diagnosis of an unruptured uterine artery aneurysm was confirmed by color-coded-sonography and magnetic resonance angiography. After interdisciplinary consultation, successful endovascular super-selective coil-embolization was performed by using X-ray fluoroscopy. Thus, fetal radiation dose during treatment with 4.33 mGy (VirtualDoseTM) was as low as possible with no immediate harm to the fetus. CONCLUSIONS Unruptured true uterine artery aneurysms can be successfully treated by endovascular super-selective coil-embolization during early pregnancy with no immediate harm to the fetus.
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Affiliation(s)
- Kai Jannusch
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany.
| | - Andrea Steuwe
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
| | - Lars Schimmöller
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
| | - Frederic Dietzel
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
| | - Lena M Wilms
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
| | - Daniel Weiss
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
| | - Farid Ziayee
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
| | - Tanja Natascha Fehm
- Medical Faculty, Department of Gynecology, University Dusseldorf, Dusseldorf, D-40225, Germany
| | - Charlotte Schlimgen
- Medical Faculty, Department of Gynecology, University Dusseldorf, Dusseldorf, D-40225, Germany
| | - Vanessa Poth
- Department of Gynecology, Hermann-Josef Hospital, Erkelenz, D-41812, Germany
| | - Reinhold Thomas Ziegler
- Medical Faculty, Department of Vascular and Endovascular Surgery, University Dusseldorf, Dusseldorf, D-40225, Germany
| | - Peter Minko
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstrasse 5, Dusseldorf, D-40225, Germany
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10
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Trenado C, Trauberg P, Elben S, Dimenshteyn K, Folkerts AK, Witt K, Weiss D, Liepelt-Scarfone I, Kalbe E, Wojtecki L. Resting state EEG as biomarker of cognitive training and physical activity's joint effect in Parkinson's patients with mild cognitive impairment. Neurol Res Pract 2023; 5:46. [PMID: 37705108 PMCID: PMC10500911 DOI: 10.1186/s42466-023-00273-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/31/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND Cognitive decline is a major factor for the deterioration of the quality of life in patients suffering from Parkinson's disease (PD). Recently, it was reported that cognitive training (CT) in PD patients with mild cognitive impairment (PD-MCI) led to an increase of physical activity (PA) accompanied by improved executive function (EF). Moreover, PA has been shown to alter positively brain function and cognitive abilities in PD. Both observations suggest an interaction between CT and PA. OBJECTIVES A previous multicenter (MC) study was slightly significant when considering independent effects of interventions (CT and PA) on EF. Here, we use MC constituent single center data that showed no effect of interventions on EF. Thus, this exploratory study considers pooling data from both interventions to gain insight into a recently reported interaction between CT and PA and provide a proof of principle for the usefulness of resting state EEG as a neurophysiological biomarker of joint intervention's effect on EF and attention in PD-MCI. METHODS Pre- and post-intervention resting state EEG and neuropsychological scores (EF and attention) were obtained from 19 PD-MCI patients (10 (CT) and 9 (PA)). We focused our EEG analysis on frontal cortical areas due to their relevance on cognitive function. RESULTS We found a significant joint effect of interventions on EF and a trend on attention, as well as trends for the negative correlation between attention and theta power (pre), the positive correlation between EF and alpha power (post) and a significant negative relationship between attention and theta power over time (post-pre). CONCLUSIONS Our results support the role of theta and alpha power at frontal areas as a biomarker for the therapeutic joint effect of interventions.
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Affiliation(s)
- Carlos Trenado
- Center for Movement Disorders and Neuromodulation, Departmemt of Neurology, University Clinic Duesseldorf, Duesseldorf, Germany
- Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
- Max Planck Institute for Empirical Aesthetics, Frankfurt am Main, Germany
| | - Paula Trauberg
- Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
| | - Saskia Elben
- Center for Movement Disorders and Neuromodulation, Departmemt of Neurology, University Clinic Duesseldorf, Duesseldorf, Germany
- Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
| | - Karina Dimenshteyn
- Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
| | - Ann-Kristin Folkerts
- Department of Medical Psychology | Neuropsychology & Gender Studies, Center for Neuropsychological Diagnostic and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Karsten Witt
- Department of Neurology, University Hospital Schleswig-Holstein, Christian-Albrechts-University, Arnold-Heller- Str. 3, 24105, Kiel, Germany
- Research Center Neurosensory Science, Carl von Ossietzky University Oldenburg, Heiligengeisthöfe 4, 26121, Oldenburg, Germany
| | - Daniel Weiss
- German Center of Neurodegenerative Diseases (DZNE) and Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - Inga Liepelt-Scarfone
- German Center of Neurodegenerative Diseases (DZNE) and Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
- IB Hochschule für Gesundheit und Soziales, Paulinenstr. 45, 70178, Stuttgart, Germany
| | - Elke Kalbe
- Department of Medical Psychology | Neuropsychology & Gender Studies, Center for Neuropsychological Diagnostic and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Lars Wojtecki
- Center for Movement Disorders and Neuromodulation, Departmemt of Neurology, University Clinic Duesseldorf, Duesseldorf, Germany.
- Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University, Duesseldorf, Germany.
- Departmemt of Neurology and Neurorehabilitation, Hospital Zum Heiligen Geist, Academic Teaching Hospital of the Heinrich-Heine-University Duesseldorf, Von-Broichhausen-Allee 1, 47906, Kempen, Germany.
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11
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Abreu S, Alves L, Carvalho L, Xisto D, Blanco N, Castro L, Olsen P, Lapa E Silva JR, Morales MM, Lopes-Pacheco M, Weiss D, Rocco PRM. Serum from patients with asthma potentiates macrophage phagocytosis and human mesenchymal stromal cell therapy in experimental allergic asthma. Cytotherapy 2023; 25:967-976. [PMID: 37330732 DOI: 10.1016/j.jcyt.2023.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 01/04/2023] [Revised: 05/17/2023] [Accepted: 05/27/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND/AIMS Although several studies have demonstrated that mesenchymal stromal cells (MSCs) exhibit beneficial immunomodulatory properties in preclinical models of allergic asthma, effects on airway remodeling have been controversial. Recent evidence has shown that MSCs modify their in vivo immunomodulatory actions depending on the specific inflammatory environment encountered. Accordingly, we assessed whether the therapeutic properties of human mesenchymal stromal cells (hMSCs) could be potentiated by conditioning these cells with serum (hMSC-serum) obtained from patients with asthma and then transplanted in an experimental model of house dust mite (HDM)-induced allergic asthma. METHODS hMSC and hMSC-serum were administered intratracheally 24 h after the final HDM challenge. hMSC viability and inflammatory mediator production, lung mechanics and histology, bronchoalveolar lavage fluid (BALF) cellularity and biomarker levels, mitochondrial structure and function as well as macrophage polarization and phagocytic capacity were assessed. RESULTS Serum preconditioning led to: (i) increased hMSC apoptosis and expression of transforming growth factor-β, interleukin (IL)-10, tumor necrosis factor-α-stimulated gene 6 protein and indoleamine 2,3-dioxygenase-1; (ii) fission and reduction of the intrinsic respiratory capacity of mitochondria; and (iii) polarization of macrophages to M2 phenotype, which may be associated with a greater percentage of hMSCs phagocytosed by macrophages. Compared with mice receiving hMSCs, administration of hMSC-serum led to further reduction of collagen fiber content, eotaxin levels, total and differential cellularity and increased IL-10 levels in BALF, improving lung mechanics. hMSC-serum promoted greater M2 macrophage polarization as well as macrophage phagocytosis, mainly of apoptotic hMSCs. CONCLUSIONS Serum from patients with asthma led to a greater percentage of hMSCs phagocytosed by macrophages and triggered immunomodulatory responses, resulting in further reductions in both inflammation and remodeling compared with non-preconditioned hMSCs.
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Affiliation(s)
- Soraia Abreu
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, Brazil
| | - Leonardo Alves
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiza Carvalho
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Debora Xisto
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Natália Blanco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lígia Castro
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Priscilla Olsen
- Laboratory of Immunological Studies, School of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jose Roberto Lapa E Silva
- Institute of Thoracic Medicine, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcelo Marcos Morales
- National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, Brazil; Laboratory of Cellular and Molecular Physiology, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Miquéias Lopes-Pacheco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Daniel Weiss
- Department of Medicine, University of Vermont, College of Medicine, Burlington, Vermont, USA
| | - Patricia Rieken Macedo Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, Brazil.
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12
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Koy A, Kühn AA, Schiller P, Huebl J, Schneider GH, Eckenweiler M, Rensing-Zimmermann C, Coenen VA, Krauss JK, Saryyeva A, Hartmann H, Lorenz D, Volkmann J, Matthies C, Schnitzler A, Vesper J, Gharabaghi A, Weiss D, Bevot A, Marks W, Howser A, Monbaliu E, Mueller J, Prinz-Langenohl R, Visser-Vandewalle V, Timmermann L. Long-Term Follow-Up of Pediatric Patients with Dyskinetic Cerebral Palsy and Deep Brain Stimulation. Mov Disord 2023; 38:1736-1742. [PMID: 37358761 DOI: 10.1002/mds.29516] [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: 02/24/2023] [Revised: 05/16/2023] [Accepted: 06/05/2023] [Indexed: 06/27/2023] Open
Abstract
BACKGROUND Deep brain stimulation (DBS) has been increasingly used in the management of dyskinetic cerebral palsy (DCP). Data on long-term effects and the safety profile are rare. OBJECTIVES We assessed the efficacy and safety of pallidal DBS in pediatric patients with DCP. METHODS The STIM-CP trial was a prospective, single-arm, multicenter study in which patients from the parental trial agreed to be followed-up for up to 36 months. Assessments included motor and non-motor domains. RESULTS Of the 16 patients included initially, 14 (mean inclusion age 14 years) were assessed. There was a significant change in the (blinded) ratings of the total Dyskinesia Impairment Scale at 36 months. Twelve serious adverse events (possibly) related to treatment were documented. CONCLUSION DBS significantly improved dyskinesia, but other outcome parameters did not change significantly. Investigations of larger homogeneous cohorts are needed to further ascertain the impact of DBS and guide treatment decisions in DCP. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Anne Koy
- Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Andrea A Kühn
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
| | - Petra Schiller
- Institute of Medical Statistics and Computational Biology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Julius Huebl
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
- Department of Neurology, Munich Municipal Hospital Bogenhausen, Munich, Germany
| | | | - Matthias Eckenweiler
- Department of Neuropediatrics and Muscle Disorders, University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cornelia Rensing-Zimmermann
- Department of Neuropediatrics and Muscle Disorders, University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Volker Arnd Coenen
- Department of Stereotactic and Functional Neurosurgery, University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Deep Brain Stimulation, University Medical Center, Freiburg, Germany
| | - Joachim K Krauss
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Assel Saryyeva
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Hans Hartmann
- Clinic for Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Delia Lorenz
- Department of Pediatrics, University Children's Hospital, Wuerzburg, Germany
| | - Jens Volkmann
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Cordula Matthies
- Department of Stereotactic and Functional Neurosurgery, University Hospital Würzburg, Würzburg, Germany
| | - Alfons Schnitzler
- Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Neurology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Jan Vesper
- Department of Functional Neurosurgery and Stereotaxy, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Alireza Gharabaghi
- Institute for Neuromodulation and Neurotechnology, Department of Neurosurgery and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
| | - Daniel Weiss
- Department of Neurology, Medical Faculty, University of Tübingen, Tübingen, Germany
| | - Andrea Bevot
- Department of Pediatric Neurology and Developmental Medicine, University Children's Hospital Tübingen, Tübingen, Germany
| | - Warren Marks
- Department of Neurology, Cook Children's Medical Center, Fort Worth, Texas, USA
- Department of Pediatrics, University of North Texas Health Sciences Center, Fort Worth, Texas, USA
| | - Angela Howser
- Department of Pediatrics, University of North Texas Health Sciences Center, Fort Worth, Texas, USA
| | - Elegast Monbaliu
- Department of Rehabilitation Sciences, KU Leuven Campus Bruges, Brugge, Belgium
| | - Joerg Mueller
- Department of Neurology, Vivantes Klinikum Spandau, Berlin, Germany
| | | | - Veerle Visser-Vandewalle
- Department of Stereotactic and Functional Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Lars Timmermann
- Department of Neurology, University Hospital of Marburg, Marburg, Germany
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13
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Schulze-Zachau V, Brehm A, Ntoulias N, Krug N, Tsogkas I, Blackham KA, Möhlenbruch MA, Jesser J, Cervo A, Kreiser K, Althaus K, Maslias E, Michel P, Saliou G, Riegler C, Nolte CH, Maier I, Jamous A, Rautio R, Ylikotila P, Fargen KM, Wolfe SQ, Castellano D, Boghi A, Kaiser DPO, Cuberi A, Kirschke JS, Schwarting J, Limbucci N, Renieri L, Al Kasab S, Spiotta AM, Fragata I, Rodriquez-Ares T, Maurer CJ, Berlis A, Moreu M, López-Frías A, Pérez-García C, Commodaro C, Pileggi M, Mascitelli J, Giordano F, Casagrande W, Purves CP, Bester M, Flottmann F, Kan PT, Edhayan G, Hofmeister J, Machi P, Kaschner M, Weiss D, Katan M, Fischer U, Psychogios MN. Incidence and outcome of perforations during medium vessel occlusion compared with large vessel occlusion thrombectomy. J Neurointerv Surg 2023:jnis-2023-020531. [PMID: 37524518 DOI: 10.1136/jnis-2023-020531] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/19/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Vessel perforation during thrombectomy is a severe complication and is hypothesized to be more frequent during medium vessel occlusion (MeVO) thrombectomy. The aim of this study was to compare the incidence and outcome of patients with perforation during MeVO and large vessel occlusion (LVO) thrombectomy and to report on the procedural steps that led to perforation. METHODS In this multicenter retrospective cohort study, data of consecutive patients with vessel perforation during thrombectomy between January 1, 2015 and September 30, 2022 were collected. The primary outcomes were independent functional outcome (ie, modified Rankin Scale 0-2) and all-cause mortality at 90 days. Binomial test, chi-squared test and t-test for unpaired samples were used for statistical analysis. RESULTS During 25 769 thrombectomies (5124 MeVO, 20 645 LVO) in 25 stroke centers, perforation occurred in 335 patients (1.3%; mean age 72 years, 62% female). Perforation occurred more often in MeVO thrombectomy (2.4%) than in LVO thrombectomy (1.0%, p<0.001). More MeVO than LVO patients with perforation achieved functional independence at 3 months (25.7% vs 10.9%, p=0.001). All-cause mortality did not differ between groups (overall 51.6%). Navigation beyond the occlusion and retraction of stent retriever/aspiration catheter were the two most common procedural steps that led to perforation. CONCLUSIONS In our cohort, perforation was approximately twice as frequent in MeVO than in LVO thrombectomy. Efforts to optimize the procedure may focus on navigation beyond the occlusion site and retraction of stent retriever/aspiration catheter. Further research is necessary in order to identify thrombectomy candidates at high risk of intraprocedural perforation and to provide data on the effectiveness of endovascular countermeasures.
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Affiliation(s)
- Victor Schulze-Zachau
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
| | - Alex Brehm
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
| | - Nikolaos Ntoulias
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
| | - Nadja Krug
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
| | - Ioannis Tsogkas
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
| | - Kristine Ann Blackham
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
| | - Markus A Möhlenbruch
- Vascular & Interventional Neuroradiology Section, Minimal Invasive NeuroTherapy Center, University Hospital Heidelberg, Heidelberg, Germany
| | - Jessica Jesser
- Vascular & Interventional Neuroradiology Section, Minimal Invasive NeuroTherapy Center, University Hospital Heidelberg, Heidelberg, Germany
| | - Amedeo Cervo
- Neuroradiology Department, Niguarda Hospital, Milan, Italy
| | - Kornelia Kreiser
- Radiology and Neuroradiology Clinic, RKU - Universitäts- und Rehabilitationskliniken Ulm gGmbH, Ulm, Germany
| | | | - Errikos Maslias
- Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
- UNIL - Université de Lausanne, Lausanne, Switzerland
| | - Patrik Michel
- Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
- UNIL - Université de Lausanne, Lausanne, Switzerland
| | - Guillaume Saliou
- UNIL - Université de Lausanne, Lausanne, Switzerland
- Diagnostic and Interventional Radiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Christoph Riegler
- Department of Neurology with Experimental Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Christian H Nolte
- Department of Neurology with Experimental Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Ilko Maier
- Department of Neurology, University Medical Center Göttingen, Göttingen, Germany
| | - Ala Jamous
- Department of Diagnostic & Interventional Neuroradiology, University Medical Center Göttingen, Göttingen, Germany
| | - Riitta Rautio
- Department of Radiology, Turku University Hospital, Turku, Finland
| | | | - Kyle M Fargen
- Neurological Surgery and Radiology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Stacey Q Wolfe
- Neurological Surgery and Radiology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Davide Castellano
- Department of Interventional Radiology and Neuroradiology, Ospedale San Giovanni Bosco, Turin, Italy
| | - Andrea Boghi
- Department of Interventional Radiology and Neuroradiology, Ospedale San Giovanni Bosco, Turin, Italy
| | - Daniel P O Kaiser
- Department of Neuroradiology, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Ani Cuberi
- Department of Radiology, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jan S Kirschke
- Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany
| | - Julian Schwarting
- Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany
| | - Nicola Limbucci
- Department of Neurovascular Intervention, Azienda Ospedaliero Universitaria Careggio, Florence, Italy
| | - Leonardo Renieri
- Department of Neurovascular Intervention, Azienda Ospedaliero Universitaria Careggio, Florence, Italy
| | - Sami Al Kasab
- Department of Neurosurgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Alejandro M Spiotta
- Department of Neurosurgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Isabel Fragata
- Department of Neuroradiology, Centro Hospitalar Universitario de Lisboa Central EPE, Lisbon, Portugal
- NOVA Medical School, Lisbon, Portugal
| | - Tania Rodriquez-Ares
- Department of Neuroradiology, Centro Hospitalar Universitario de Lisboa Central EPE, Lisbon, Portugal
| | - Christoph Johannes Maurer
- Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Augsburg, Augsburg, Germany
| | - Ansgar Berlis
- Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Augsburg, Augsburg, Germany
| | - Manuel Moreu
- Neurointerventional Unit, Radiology Department, Hospital Clinico Universitario San Carlos, Madrid, Spain
| | - Alfonso López-Frías
- Neurointerventional Unit, Radiology Department, Hospital Clinico Universitario San Carlos, Madrid, Spain
| | - Carlos Pérez-García
- Neurointerventional Unit, Radiology Department, Hospital Clinico Universitario San Carlos, Madrid, Spain
| | - Christian Commodaro
- Diagnostic and Interventional Neuroradiology Department, Neurocenter of Southern Switzerland EOC, Lugano, Switzerland
| | - Marco Pileggi
- Diagnostic and Interventional Neuroradiology Department, Neurocenter of Southern Switzerland EOC, Lugano, Switzerland
| | - Justin Mascitelli
- Department of Neurosurgery, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Flavio Giordano
- Unit of Interventional Neuroradiology, Department of Advanced Diagnostic and Therapeutic Technologies, Azienda Ospedaliera di Rilievo Nazionale Antonio Cardarelli, Naples, Italy
| | - Walter Casagrande
- Neurosurgery Department, Hospital General de Agudos Juan A Fernandez, Buenos Aires, Argentina
| | - Cynthia P Purves
- Neurosurgery Department, Hospital General de Agudos Juan A Fernandez, Buenos Aires, Argentina
| | - Maxim Bester
- Diagnostic and Interventional Neuroradiology Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Fabian Flottmann
- Diagnostic and Interventional Neuroradiology Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Peter T Kan
- Department of Neurosurgery, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Gautam Edhayan
- Department of Radiology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Jeremy Hofmeister
- Department of Radiology and Medical Informatics, Geneva University Hospitals, Geneva, Switzerland
| | - Paolo Machi
- Department of Radiology and Medical Informatics, Geneva University Hospitals, Geneva, Switzerland
| | - Marius Kaschner
- Department of Diagnostic and Interventional Radiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Daniel Weiss
- Department of Diagnostic and Interventional Radiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Mira Katan
- Neurology Clinic, University Hospital Basel, Basel, Switzerland
| | - Urs Fischer
- Neurology Clinic, University Hospital Basel, Basel, Switzerland
| | - Marios-Nikos Psychogios
- Diagnostic and Interventional Neuroradiology Department, Radiology and Nuclear Medicine Clinic, University Hospital Basel, Basel, Switzerland
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14
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Breit S, Milosevic L, Naros G, Cebi I, Weiss D, Gharabaghi A. Structural-Functional Correlates of Response to Pedunculopontine Stimulation in a Randomized Clinical Trial for Axial Symptoms of Parkinson's Disease. J Parkinsons Dis 2023:JPD225031. [PMID: 37092235 DOI: 10.3233/jpd-225031] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
BACKGROUND Axial symptoms of Parkinson's disease (PD) can be debilitating and are often refractory to conventional therapies such as dopamine replacement therapy and deep brain stimulation (DBS) of the subthalamic nuclei (STN). OBJECTIVE Evaluate the efficacy of bilateral DBS of the pedunculopontine nucleus area (PPNa) and investigate structural and physiological correlates of clinical response. METHODS A randomized, double-blind, cross-over clinical trial was employed to evaluate the efficacy of bilateral PPNa-DBS on axial symptoms. Lead positions and neuronal activity were evaluated with respect to clinical response. Connectomic cortical activation profiles were generated based on the volumes of tissue activated. RESULTS PPNa-DBS modestly improved (p = 0.057) axial symptoms in the medication-off condition, with greatest positive effects on gait symptoms (p = 0.027). Electrode placements towards the anterior commissure (ρ= 0.912; p = 0.011) or foramen caecum (ρ= 0.853; p = 0.031), near the 50% mark of the ponto-mesencephalic junction, yielded better therapeutic responses. Recording trajectories of patients with better therapeutic responses (i.e., more anterior electrode placements) had neurons with lower firing-rates (p = 0.003) and higher burst indexes (p = 0.007). Structural connectomic profiles implicated activation of fibers of the posterior parietal lobule which is involved in orienting behavior and locomotion. CONCLUSION Bilateral PPNa-DBS influenced gait symptoms in patients with PD. Anatomical and physiological information may aid in localization of a favorable stimulation target.
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Affiliation(s)
- Sorin Breit
- Department for Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, and German Centre of Neurodegenerative Diseases (DZNE), University Hospital and University Tübingen, Tübingen, Germany
| | - Luka Milosevic
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
- Krembil Research Institute, Clinical and Computational Neuroscience, University Health Network, Toronto, Canada
| | - Georgios Naros
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
| | - Idil Cebi
- Department for Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, and German Centre of Neurodegenerative Diseases (DZNE), University Hospital and University Tübingen, Tübingen, Germany
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
| | - Daniel Weiss
- Department for Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, and German Centre of Neurodegenerative Diseases (DZNE), University Hospital and University Tübingen, Tübingen, Germany
| | - Alireza Gharabaghi
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
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15
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Correa Londoño M, Weiss D. Metastases-Like Liver Lesions in Two Different Types of Porphyria - Porphyria Cutanea Tarda (PCT) and Acute Hepatic Porphyria (AHP) - and the Role of CEUS. Ultraschall Med 2023; 44:203-205. [PMID: 34352909 DOI: 10.1055/a-1541-7507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- Martina Correa Londoño
- Department of Diagnostic, Interventional and Pediatric Radiology (DIPR), Inselspital, Bern University Hospital, University of Bern, Switzerland, Radiologie Inselspital Bern, Switzerland
| | - Daniel Weiss
- Internal Medicine, Hospital of Thun, Switzerland
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16
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Mazeh H, Weiss D, Peter M, Grozinsky-Glasberg S, Oleinikov K, Szalat A, Ronen A, Koganov E. Deliberate Compensated Vasoplegia-A Novel Pharmaceutical Approach for Controlling Blood Pressure During Surgery for Pheochromocytoma. World J Surg 2023; 47:985-994. [PMID: 36688933 DOI: 10.1007/s00268-023-06894-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/25/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND The most dreaded adverse event of pheochromocytoma surgery is operative severe blood pressure fluctuations. Preoperative protocols with alpha-blockade have achieved controversial results. No study to date evaluated the use of operative protocols in pheochromocytoma patients. Deliberated compensated vasoplegia (DCV) is a novel pharmaceutical regimen developed at our institution to decrease severe hypertensive events. The aim of this study is to compare outcomes of pheochromocytoma resection with and without DCV protocol. METHODS A retrospective analysis of all pheochromocytoma resections between the years 2012 and 2021 was performed. Resections performed with and without DCV protocol were compared. The primary outcome measured was the incidence of severe hypertension (MAP > 150 mmHg) during surgery. Secondary outcomes included other abnormal blood pressure measurements as well as perioperative data and complications. RESULTS A total of 41 resections were included, 21 performed under DCV protocol, and 20 without the protocol. Analysis demonstrated no significant difference in preoperative parameters including tumor size, catecholamine levels, and preoperative alpha-blockade protocol. The use of DCV protocol resulted in significant decrease in severe hypertension incidence from 1.95 ± 3.6 to 0.03 ± 0.13 events/h, p = 0.008. Application of the DCV protocol was not associated with any other adverse events. CONCLUSIONS This study suggests that DCV anesthesia protocol significantly decreases the incidence of severe hypertensive episodes during pheochromocytoma resection. This is the first study that describes a highly effective protocol for controlling hypertension in pheochromocytoma patients.
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Affiliation(s)
- Haggi Mazeh
- Department of Surgery, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.
| | - Daniel Weiss
- Department of Surgery, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Michael Peter
- Department of Surgery, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Simona Grozinsky-Glasberg
- Department of Endocrinology, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.,Neuroendocrine Tumor Unit, ENETS Center of Excellence, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Kira Oleinikov
- Department of Endocrinology, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.,Neuroendocrine Tumor Unit, ENETS Center of Excellence, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Auryan Szalat
- Department of Endocrinology, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ariel Ronen
- Department of Anesthesiology, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Evgeny Koganov
- Department of Anesthesiology, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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17
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Cavanagh N, Blanchard IE, Weiss D, Tavares W. Looking back to inform the future: a review of published paramedicine research. BMC Health Serv Res 2023; 23:108. [PMID: 36732779 PMCID: PMC9893690 DOI: 10.1186/s12913-022-08893-4] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/28/2022] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE Paramedicine has evolved in ways that may outpace the science informing these changes. Examining the scholarly pursuits of paramedicine may provide insights into the historical academic focus, which may inform future endeavors and evolution of paramedicine. The objective of this study was to explore the existing discourse in paramedicine research to reflect on the academic pursuits of this community. METHODS We searched Medline, Embase, CINAHL, Google Scholar and Web of Science from January, 2006 to April, 2019. We further refined the yield using a ranking formula that prioritized journals most relevant to paramedicine, then sampled randomly in two-year clusters for full text review. We extracted literature type, study topic and context, then used elements of qualitative content, thematic, and discourse analysis to further describe the sample. RESULTS The initial search yielded 99,124 citations, leaving 54,638 after removing duplicates and 7084 relevant articles from nine journals after ranking. Subsequently, 2058 articles were included for topic categorization, and 241 papers were included for full text analysis after random sampling. Overall, this literature reveals: 1) a relatively narrow topic focus, given the majority of research has concentrated on general operational activities and specific clinical conditions and interventions (e.g., resuscitation, airway management, etc.); 2) a limited methodological (and possibly philosophical) focus, given that most were observational studies (e.g., cohort, case control, and case series) or editorial/commentary; 3) a variety of observed trajectories of academic attention, indicating where the evolution of paramedicine is evident, areas where scope of practice is uncertain, and areas that aim to improve skills historically considered core to paramedic clinical practice. CONCLUSIONS Included articles suggest a relatively narrow topic focus, a limited methodological focus, and observed trajectories of academic attention indicating where research pursuits and priorities are shifting. We have highlighted that the academic focus may require an alignment with aspirational and direction setting documents aimed at developing paramedicine. This review may be a snapshot of scholarly activity that reflects a young medically directed profession and systems focusing on a few high acuity conditions, with aspirations of professional autonomy contributing to the health and social well-being of communities.
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Affiliation(s)
- N. Cavanagh
- grid.413574.00000 0001 0693 8815Alberta Health Services, Emergency Medical Services, Edmonton, Alberta Canada ,grid.22072.350000 0004 1936 7697Department of Community Health Sciences, University of Calgary, Cumming School of Medicine, Calgary, Alberta Canada
| | - I. E. Blanchard
- grid.413574.00000 0001 0693 8815Alberta Health Services, Emergency Medical Services, Edmonton, Alberta Canada ,grid.22072.350000 0004 1936 7697Department of Community Health Sciences, University of Calgary, Cumming School of Medicine, Calgary, Alberta Canada
| | - D. Weiss
- grid.413574.00000 0001 0693 8815Alberta Health Services, Emergency Medical Services, Edmonton, Alberta Canada
| | - W. Tavares
- grid.512795.dThe Wilson Centre, Department of Medicine, University of Toronto/University Health Network, Toronto, Ontario Canada ,grid.17063.330000 0001 2157 2938Department of Health and Society, University of Toronto, Toronto, Ontario Canada ,York Region Paramedic and Senior Services, Community Health Services Department, Regional Municipality of York, Newmarket, Ontario Canada
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18
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Langer A, Lucke-Paulig L, Gassner L, Krüger R, Weiss D, Gharabaghi A, Zach H, Maetzler W, Hobert MA. Additive Effect of Dopaminergic Medication on Gait Under Single and Dual-Tasking Is Greater Than of Deep Brain Stimulation in Advanced Parkinson Disease With Long-Duration Deep Brain Stimulation. Neuromodulation 2023; 26:364-373. [PMID: 35227581 DOI: 10.1016/j.neurom.2022.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/10/2021] [Accepted: 01/04/2022] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Patients with advanced Parkinson disease (PD) often experience problems with mobility, including walking under single- (ST) and dual-tasking (DT) conditions. The effects of deep brain stimulation in the subthalamic nucleus (DBS) versus dopaminergic medication (Med) on these conditions are not well investigated. MATERIALS AND METHODS We used two ST and two DT-gait paradigms to evaluate the effect of DBS and dopaminergic medication on gait parameters in 14 PD patients (mean age 66 ± 8 years) under DBSOFF/MedON, DBSON/MedOFF, and DBSON/MedON conditions. They performed standardized 20-meter walks with convenient and fast speed. To test DT capabilities, they performed a checking-boxes and a subtraction task during fast-paced walking. Quantitative gait analysis was performed using a tri-axial accelerometer (Dynaport, McRoberts, The Netherlands). Dual-task costs (DTC) of gait parameters and secondary task performance were compared intraindividually between DBSOFF/MedON vs DBSON/MedON, and DBSON/MedOFF vs DBSON/MedON to estimate responsiveness. RESULTS Dopaminergic medication increased gait speed and cadence at convenient speed. It increased cadence and decreased number of steps at fast speed, and improved DTC of cadence during the checking boxes and DTC of cadence and number of steps during the subtraction tasks. DBS only improved DTC of cadence during the checking boxes and DTC of gait speed during the subtraction task. CONCLUSION Dopaminergic medication showed larger additional effects on temporal gait parameters under ST and DT conditions in advanced PD than DBS. These results, after confirmation in independent studies, should be considered in the medical management of advanced PD patients with gait and DT deficits.
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Affiliation(s)
- Agnes Langer
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Lara Lucke-Paulig
- Center for Neurology, Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tuebingen, Tuebingen, Germany; Department of Endocrinology, Diabetology and Geriatrics, Stuttgart General Hospital, Bad Cannstatt, Germany
| | - Lucia Gassner
- Department of Sport Physiology, Institute of Sports Sciences, University of Vienna, Vienna, Austria; Royal Melbourne Institute of Technology, Melbourne, Australia; HTA Austria - Austrian Institute for Health Technology Assessment GmbH, Vienna, Austria
| | - Rejko Krüger
- Center for Neurology, Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tuebingen, Tuebingen, Germany; Luxembourg Institute of Health, Strassen, Luxembourg; Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg; Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg
| | - Daniel Weiss
- Center for Neurology, Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tuebingen, Tuebingen, Germany
| | - Alireza Gharabaghi
- Institute for Neuromodulation and Neurotechnology, Department of Neurosurgery and Neurotechnology, University Hospital Tuebingen, University of Tuebingen, Tuebingen, Germany
| | - Heidemarie Zach
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Walter Maetzler
- Center for Neurology, Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tuebingen, Tuebingen, Germany; Department of Neurology, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Markus A Hobert
- Center for Neurology, Hertie Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, University of Tuebingen, Tuebingen, Germany; Department of Neurology, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Christian-Albrechts-University Kiel, Kiel, Germany.
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19
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Lindner LP, Gerach T, Jahnke T, Loewe A, Weiss D, Wieners C. Efficient time splitting schemes for the monodomain equation in cardiac electrophysiology. Int J Numer Method Biomed Eng 2023; 39:e3666. [PMID: 36562492 DOI: 10.1002/cnm.3666] [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] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/19/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Approximating the fast dynamics of depolarization waves in the human heart described by the monodomain model is numerically challenging. Splitting methods for the PDE-ODE coupling enable the computation with very fine space and time discretizations. Here, we compare different splitting approaches regarding convergence, accuracy, and efficiency. Simulations were performed for a benchmark problem with the Beeler-Reuter cell model on a truncated ellipsoid approximating the left ventricle including a localized stimulation. For this configuration, we provide a reference solution for the transmembrane potential. We found a semi-implicit approach with state variable interpolation to be the most efficient scheme. The results are transferred to a more physiological setup using a bi-ventricular domain with a complex external stimulation pattern to evaluate the accuracy of the activation time for different resolutions in space and time.
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Affiliation(s)
- Laura P Lindner
- Institute of Applied and Numerical Mathematics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Tobias Gerach
- Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Tobias Jahnke
- Institute of Applied and Numerical Mathematics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Axel Loewe
- Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Daniel Weiss
- Institute of Applied and Numerical Mathematics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Christian Wieners
- Institute of Applied and Numerical Mathematics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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20
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Pinto S, Nebel A, Rau J, Espesser R, Maillochon P, Niebuhr O, Krack P, Witjas T, Ghio A, Cuartero MC, Timmermann L, Schnitzler A, Hesekamp H, Meier N, Müllner J, Hälbig TD, Möller B, Paschen S, Paschen L, Volkmann J, Barbe MT, Fink GR, Becker J, Reker P, Kühn AA, Schneider GH, Fraix V, Seigneuret E, Kistner A, Rascol O, Brefel-Courbon C, Ory-Magne F, Hartmann CJ, Wojtecki L, Fradet A, Maltête D, Damier P, Le Dily S, Sixel-Döring F, Benecke P, Weiss D, Wächter T, Pinsker MO, Régis J, Thobois S, Polo G, Houeto JL, Hartmann A, Knudsen K, Vidailhet M, Schüpbach M, Deuschl G. Results of a Randomized Clinical Trial of Speech After Early Neurostimulation in Parkinson's Disease. Mov Disord 2023; 38:212-222. [PMID: 36461899 DOI: 10.1002/mds.29282] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND The EARLYSTIM trial demonstrated for Parkinson's disease patients with early motor complications that deep brain stimulation of the subthalamic nucleus (STN-DBS) and best medical treatment (BMT) was superior to BMT alone. OBJECTIVE This prospective, ancillary study on EARLYSTIM compared changes in blinded speech intelligibility assessment between STN-DBS and BMT over 2 years, and secondary outcomes included non-speech oral movements (maximum phonation time [MPT], oral diadochokinesis), physician- and patient-reported assessments. METHODS STN-DBS (n = 102) and BMT (n = 99) groups underwent assessments on/off medication at baseline and 24 months (in four conditions: on/off medication, ON/OFF stimulation-for STN-DBS). Words and sentences were randomly presented to blinded listeners, and speech intelligibility rate was measured. Statistical analyses compared changes between the STN-DBS and BMT groups from baseline to 24 months. RESULTS Over the 2-year period, changes in speech intelligibility and MPT, as well as patient-reported outcomes, were not different between groups, either off or on medication or OFF or ON stimulation, but most outcomes showed a nonsignificant trend toward worsening in both groups. Change in oral diadochokinesis was significantly different between STN-DBS and BMT groups, on medication and OFF STN-DBS, with patients in the STN-DBS group performing slightly worse than patients under BMT only. A signal for clinical worsening with STN-DBS was found for the individual speech item of the Unified Parkinson's Disease Rating Scale, Part III. CONCLUSION At this early stage of the patients' disease, STN-DBS did not result in a consistent deterioration in blinded speech intelligibility assessment and patient-reported communication, as observed in studies of advanced Parkinson's Disease. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Serge Pinto
- Aix-Marseille Univ, CNRS, LPL, Aix-en-Provence, France
| | - Adelheid Nebel
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Jörn Rau
- Coordinating Centre for Clinical Trials of the Philipps-University of Marburg, Marburg, Germany
| | | | | | - Oliver Niebuhr
- Department of Scandinavian Studies, Frisian, and General Linguistics, Kiel University, Kiel, Germany
| | - Paul Krack
- Department of Neurology or Neurosurgery, Grenoble University Hospital, Grenoble Alpes University, Grenoble Institut des Neurosciences, Grenoble, France
| | - Tatiana Witjas
- Aix Marseille Univ, APHM, La Timone, Neurology Department or Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Marseille, France
| | - Alain Ghio
- Aix-Marseille Univ, CNRS, LPL, Aix-en-Provence, France
| | | | - Lars Timmermann
- Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Alfons Schnitzler
- Department of Neurology and Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Helke Hesekamp
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Niklaus Meier
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Julia Müllner
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Thomas D Hälbig
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Bettina Möller
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Steffen Paschen
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Laura Paschen
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Jens Volkmann
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Michael T Barbe
- Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Gereon R Fink
- Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Johannes Becker
- Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Paul Reker
- Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Andrea A Kühn
- Department of Neurology, Charité Hospital, Berlin University, Berlin, Germany
| | | | - Valérie Fraix
- Department of Neurology or Neurosurgery, Grenoble University Hospital, Grenoble Alpes University, Grenoble Institut des Neurosciences, Grenoble, France
| | - Eric Seigneuret
- Department of Neurology or Neurosurgery, Grenoble University Hospital, Grenoble Alpes University, Grenoble Institut des Neurosciences, Grenoble, France
| | - Andrea Kistner
- Department of Neurology or Neurosurgery, Grenoble University Hospital, Grenoble Alpes University, Grenoble Institut des Neurosciences, Grenoble, France
| | - Olivier Rascol
- Department of Neurology and Centre Expert Parkinson, and INSERM U1214, Toulouse University Hospital, Toulouse NeuroImaging Centre, Toulouse, France
| | - Christine Brefel-Courbon
- Department of Neurology and Centre Expert Parkinson, and INSERM U1214, Toulouse University Hospital, Toulouse NeuroImaging Centre, Toulouse, France
| | - Fabienne Ory-Magne
- Department of Neurology and Centre Expert Parkinson, and INSERM U1214, Toulouse University Hospital, Toulouse NeuroImaging Centre, Toulouse, France
| | - Christian J Hartmann
- Department of Neurology and Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Lars Wojtecki
- Department of Neurology and Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Anne Fradet
- Department of Neurology, CIC-INSERM 1402, CHU de Poitiers, Université de Poitiers, Poitiers, France
| | - David Maltête
- Department of Neurology, Rouen University Hospital, INSERM U1073, Rouen Faculty of Medicine, Rouen, France
| | - Philippe Damier
- CHU Nantes, INSERM, CIC1413, Hôpital Laënnec, Nantes, France
| | | | | | - Petra Benecke
- Department of Neurology, Paracelsus-Elena-Klinik, Kassel, Germany
| | - Daniel Weiss
- Department for Neurodegenerative Diseases, Centre for Neurology, and Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Tobias Wächter
- Department for Neurodegenerative Diseases, Centre for Neurology, and Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Marcus O Pinsker
- Department of Neurosurgery, University Hospital, Freiburg, Germany
| | - Jean Régis
- Aix Marseille Univ, APHM, La Timone, Neurology Department or Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Marseille, France
| | - Stéphane Thobois
- Hôpital Neurologique Pierre Wertheimer, Centre Expert Parkinson, Hospices Civils de Lyon, Université Claude Bernard Lyon 1 Lyon, France, and Centre de Neurosciences Cognitives, Bron, France
| | - Gustavo Polo
- Hôpital Neurologique Pierre Wertheimer, Centre Expert Parkinson, Hospices Civils de Lyon, Université Claude Bernard Lyon 1 Lyon, France, and Centre de Neurosciences Cognitives, Bron, France
| | - Jean-Luc Houeto
- Department of Neurology, CIC-INSERM 1402, CHU de Poitiers, Université de Poitiers, Poitiers, France
| | - Andreas Hartmann
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Karina Knudsen
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
| | - Marie Vidailhet
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Michael Schüpbach
- Department of Neurology, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris (APHP), INSERM, Institut du Cerveau et de la Moelle Epinière, and Centre d'Investigation Clinique (CIC), Paris, France
| | - Günther Deuschl
- Department of Neurology, University Medical Center Schleswig-Holstein, Christian-Albrechts-University, Kiel, Germany
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21
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Chen L, Mankovsky S, Kronseder M, Schuh D, Prager M, Bougeard D, Ebert H, Weiss D, Back CH. Interfacial Tuning of Anisotropic Gilbert Damping. Phys Rev Lett 2023; 130:046704. [PMID: 36763433 DOI: 10.1103/physrevlett.130.046704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 10/17/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Tuning of the anisotropic Gilbert damping Δα has been realized in ultrathin single-crystalline Fe films grown on GaAs (001). A nonmonotonic dependence of Δα on film thickness t is observed upon varying t about 10 ML (∼1.4 nm). Δα increases for 16 ML>t>8.5 ML, and then decreases for 8.5 ML>t>6.5 ML accompanied by a sign reversal of Δα for t=6.5 ML. The sign reversal of Δα is captured by first-principle calculations, which show that the anisotropic density of states changes sign upon decreasing t. Moreover, t^{-1} dependence of the anisotropic damping indicates the emergence of an anisotropic effective spin mixing conductance according to the theory of spin pumping. The results establish new opportunities for controlling the Gilbert damping and for fundamental studies of magnetization dynamics in reduced dimension.
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Affiliation(s)
- L Chen
- Department of Physics, Technical University of Munich, Munich, Germany
| | - S Mankovsky
- Department of Chemistry, Ludwig Maximilian University, Munich, Germany
| | - M Kronseder
- Institute of Experimental and Applied Physics, University of Regensburg, Regensburg, Germany
| | - D Schuh
- Institute of Experimental and Applied Physics, University of Regensburg, Regensburg, Germany
| | - M Prager
- Institute of Experimental and Applied Physics, University of Regensburg, Regensburg, Germany
| | - D Bougeard
- Institute of Experimental and Applied Physics, University of Regensburg, Regensburg, Germany
| | - H Ebert
- Department of Chemistry, Ludwig Maximilian University, Munich, Germany
| | - D Weiss
- Institute of Experimental and Applied Physics, University of Regensburg, Regensburg, Germany
| | - C H Back
- Department of Physics, Technical University of Munich, Munich, Germany
- Center for Quantum Engineering (ZQE), Technical University of Munich, Munich, Germany
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22
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Loeffler MA, Synofzik M, Cebi I, Klocke P, Hormozi M, Gasser T, Gharabaghi A, Weiss D. Case Report: Deep brain stimulation improves tremor in FGF-14 associated spinocerebellar ataxia. Front Neurol 2022; 13:1048530. [PMID: 36588880 PMCID: PMC9795845 DOI: 10.3389/fneur.2022.1048530] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/21/2022] [Indexed: 12/15/2022] Open
Abstract
Objectives Spinocerebellar ataxia 27 (SCA 27) is a rare heredodegenerative disorder caused by mutations in the fibroblast growth factor 14 (FGF14) and characterized by early-onset tremor and progressive ataxia later during the disease course. We investigated the effect of deep brain stimulation (DBS) of the ventralis intermedius nucleus of the thalamus (VIM) and subthalamic projections on tremor and ataxia. Methods At baseline, we studied the effects of high-frequency VIM stimulation and low-frequency stimulation of subthalamic projections on tremor and ataxia. The patient then adopted the best individual high-frequency stimulation programme at daytime and either 30 Hz-stimulation of the subthalamic contacts or StimOFF at night during two separate 5-weeks follow-up intervals. Both patient and rater were blinded to the stimulation settings. Results High-frequency stimulation of the VIM effectively attenuated tremor. At follow-up, intermittent 30 Hz-stimulation at night resulted in a superior tremor response compared to StimOFF at night. Ataxia was not affected. Discussion Stimulation of the VIM and adjacent subthalamic projections effectively attenuated tremor in a patient with confirmed SCA 27. Cycling between daytime high-frequency and night-time low-frequency stimulation led to a more sustained tremor response. This suggests to study in future if low-frequency stimulation of the subthalamic projection fibers may help overcome tolerance of tremor that is observed as a long-term limitation of VIM-DBS.
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Affiliation(s)
- Moritz A. Loeffler
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany,Moritz A. Loeffler
| | - Matthis Synofzik
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Idil Cebi
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Philipp Klocke
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Mohammad Hormozi
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Thomas Gasser
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Alireza Gharabaghi
- Institute for Neuromodulation and Neurotechnology, Department of Neurosurgery and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
| | - Daniel Weiss
- Department for Neurodegenerative Diseases, Centre for Neurology University Hospital and University of Tübingen, Tübingen, Germany,Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany,*Correspondence: Daniel Weiss
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23
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Weiss D, Rubbert C, Kaschner M, Jander S, Gliem M, Lee JI, Haensch CA, Turowski B, Caspers J. Mothership vs. drip-and-ship: evaluation of initial treatment strategies for acute ischemic stroke in a well-developed network of specialized hospitals. Neurol Res 2022; 45:449-455. [PMID: 36480518 DOI: 10.1080/01616412.2022.2156127] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE Two strategies of initial patient care exist in endovascular thrombectomy (ET) depending on the site of initial admission: the mothership (MS) and drip-and-ship (DnS) principles. This study compares both strategies in regard to patient outcome in a local network of specialized hospitals. METHODS Two-hundred-and-two patients undergoing ET in anterior circulation ischemic stroke between June 2016 and May 2018 were enrolled. Ninety two patients were directly admitted to our local facility (MS), One-hundred-and-ten were secondarily referred to our facility. Group comparisons between admission strategies in three-months modified Rankin Scale (mRS), Maas Score and Alberta-Stroke-Program-Early-computed-tomography-score (ASPECTS), National-Institutes-of-Health-Stroke-Scale (NIHSS), age and onset-to-recanalization-time were performed. Correlation between admission strategy and mRS was calculated. A binary logistic regression model was computed including mRS as dependent variable. RESULTS There were neither significant group differences in three-months mRS between MS and DnS nor significant correlations. Patients tended to achieve a better outcome with DnS. Collateralization status differed between MS and DnS (p = 0.003) with better collateralization in DnS. There were no significant group differences in NIHSS or ASPECTS but in onset-to-recanalization-time (p < 0.001) between MS and DnS. Binary logistic regression showed a high explanation of variance of mRS but no significant results for admission strategy. CONCLUSIONS Functional outcome in patients treated with ET is comparable between the MS and DnS principles. Tendentially better outcome in the DnS subgroup may be explained by selection bias due to a higher willingness to apply ET in patients with worse baseline conditions (e.g. worse collateralization), if patients undergoing MS are already on site.
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Affiliation(s)
- Daniel Weiss
- Department of Diagnostic and Interventional Radiology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany
| | - Christian Rubbert
- Department of Diagnostic and Interventional Radiology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany
| | - Marius Kaschner
- Department of Diagnostic and Interventional Radiology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany.,Department of Neurology, Marienhospital D#xFC;sseldorf, Rochusstra#xDF;e 2, 40479 D#xFC;sseldorf, Germany
| | - Sebastian Jander
- Department of Neurology, Marienhospital D#xFC;sseldorf, Rochusstra#xDF;e 2, 40479 D#xFC;sseldorf, Germany
| | - Michael Gliem
- Department of Neurology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany
| | - John-Ih Lee
- Department of Neurology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany
| | - Carl-Albrecht Haensch
- Department of Neurology, Krankenhaus St. Franziskus, Viersener Stra#xDF;e 450, 41063 M#xF6;nchengladbach, Germany
| | - Bernd Turowski
- Department of Diagnostic and Interventional Radiology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany
| | - Julian Caspers
- Department of Diagnostic and Interventional Radiology, University D#xFC;sseldorf, Medical Faculty, Moorenstra#xDF;e 5, 40225 D#xFC;sseldorf, Germany
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24
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Goertz L, Weiss D, Abdullayev N, Moenninghoff C, Borggrefe J, Phung TH, Haage P, Schlamann M, Dorn F, Kaschner M, Kabbasch C, Nordmeyer H. Safety and Efficacy of the Novel Low-Profile APERIO Hybrid 17 for a Treatment of Proximal and Distal Vessel Occlusion in Acute Ischemic Stroke: A Multi-Center Experience. World Neurosurg 2022; 167:e386-e396. [PMID: 35963612 DOI: 10.1016/j.wneu.2022.08.023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 10/31/2022]
Abstract
OBJECTIVE To report our initial experience with the novel low-profile APERIO Hybrid17 Thrombectomy Device (AP17) for proximal and distal vessel occlusions in acute ischemic stroke. METHODS A multicentric retrospective analysis of patients treated with the AP17 was performed. The primary effectiveness endpoint was first-pass TICI ≥2b (Thrombolysis in cerebral infarction scale). The primary safety endpoint was the occurrence of hemorrhagic complications. Further outcome measures were number of passes, device-related complications, and 3-month functional outcome. RESULTS The AP17 was used in 71 patients (mean age: 73 years) with a median baseline National Institutes of Health Stroke Scale score of 9. Treated vessels were the carotid-T in 8 cases (11%), the M1-segment in 16 (23%), the M2-segment in 29 (41%), the anterior cerebral artery in 3 (4%), and basilar/posterior cerebral arteries in 15 (21%). The rates of first-pass and final TICI ≥2b were 75.6% and 92.7%, retrospectively, with a mean number of passes of 3 ± 2. Final TICI ≥2b rates were comparable between large and medium vessel occlusions. Symptomatic intracranial hemorrhages were recorded in 2 cases (2.8%). At 3-month clinical follow-up, a modified Rankin scale score ≤2 was achieved in 69.0% (29/42). The all-cause mortality at discharge was 17.4%. CONCLUSIONS The AP17 was associated with a reasonable safety and efficacy profile for both proximal and distal vessel occlusions. These results may contribute to establish mechanical thrombectomy for distal occlusions.
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Affiliation(s)
- Lukas Goertz
- Department of Neuroradiology, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany.
| | - Daniel Weiss
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf, Germany
| | - Nuran Abdullayev
- Department of Neuroradiology, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany
| | - Christoph Moenninghoff
- University Institute for Radiology, Neuroradiology and Nuclear Medicine, Johannes Wesling Klinikum Minden, Minden, Germany
| | - Jan Borggrefe
- University Institute for Radiology, Neuroradiology and Nuclear Medicine, Johannes Wesling Klinikum Minden, Minden, Germany
| | - Timo Huan Phung
- Institute for interventional Radiology and Neuroradiology, Neurozentrum Solingen, Radprax St. Lukas Hospital, Solingen, Germany
| | - Patrick Haage
- Department of Diagnostic and Interventional Radiology, Helios University Hospital, Wuppertal, Germany; School of Medicine, Department of Health, Witten/Herdecke University, Witten, Germany
| | - Marc Schlamann
- Department of Neuroradiology, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany
| | - Franziska Dorn
- Department of Neuroradiology, Medical Faculty and University Hospital, University of Bonn, Bonn, Germany
| | - Marius Kaschner
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf, Germany
| | - Christoph Kabbasch
- Department of Neuroradiology, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany
| | - Hannes Nordmeyer
- Institute for interventional Radiology and Neuroradiology, Neurozentrum Solingen, Radprax St. Lukas Hospital, Solingen, Germany; School of Medicine, Department of Health, Witten/Herdecke University, Witten, Germany
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25
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Weiss D, Rubbert C, Ivan VL, Lee JI, Gliem M, Jander S, Caspers J, Turowski B, G Kaschner M. Mechanical thrombectomy in stroke patients with acute occlusion of the M1- compared to the M2-segment: Safety, efficacy, and clinical outcome. Neuroradiol J 2022; 35:600-606. [PMID: 35083935 PMCID: PMC9513919 DOI: 10.1177/19714009211067403] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023] Open
Abstract
PURPOSE Endovascular treatment (ET) in occlusions of the M1- and proximal M2-segment of the middle cerebral artery (MCA) is an established procedure. In contrast, ET in distal M2-occlusions has not been sufficiently evaluated yet. The purpose of this study was to assess relevant parameters for clinical outcome, efficacy, and safety of patients undergoing ET in M1-, proximal M2-, and distal M2-occlusions. METHODS One hundred seventy-four patients undergoing ET in acute ischemic stroke with an occlusion of the M1- or M2-segment of the MCA were enrolled prospectively. Non-parametric analysis of variance in 3-month mRS, TICI scale, and complication rates were performed with Kruskal-Wallis test between M1- and proximal and distal M2-occlusions. Subsequent pairwise group comparisons were calculated using Mann-Whitney U-tests. Binary logistic regression models were calculated for each occlusion site. RESULTS There were no significant group differences in 3-month mRS, mTICI scale, or complication rates between M1- and M2-occlusions nor between proximal and distal M2-occlusions. Binary logistic regression in patients with M1-occlusions showed a substantial explanation of variance (NR2=0.35). NIHSS (p=0.009) and Maas Score as parameter for collateralization (p=0.01) appeared as significant contributing parameters. Binary logistic regression in M2-occlusions showed a high explanation of variance (NR2=0.50) of mRS but no significant factors. CONCLUSIONS Clinical outcome and procedural safety of patients with M2-occlusions undergoing ET are comparable to those of patients with M1-occlusions. Clinical outcome of patients with M1-occlusions undergoing ET is primarily influenced by the initial neurological deficit and the collateralization of the occlusions. By contrast, clinical outcome in patients with M2-occlusions undergoing ET is more multifactorial.
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Affiliation(s)
- Daniel Weiss
- University Dusseldorf, Medical
Faculty, Department of Diagnostic and
Interventional Radiology, D-40225 Dusseldorf, Germany
| | - Christian Rubbert
- University Dusseldorf, Medical
Faculty, Department of Diagnostic and
Interventional Radiology, D-40225 Dusseldorf, Germany
| | - Vivien L Ivan
- University Dusseldorf, Medical
Faculty, Department of Diagnostic and
Interventional Radiology, D-40225 Dusseldorf, Germany
| | - John-Ih Lee
- Department of Neurology Medical
Faculty, Heinrich Heine University
Düsseldorf, Düsseldorf, Germany
| | - Michael Gliem
- Department of Neurology Medical
Faculty, Heinrich Heine University
Düsseldorf, Düsseldorf, Germany
| | - Sebastian Jander
- Department of Neurology Medical
Faculty, Heinrich Heine University
Düsseldorf, Düsseldorf, Germany
| | - Julian Caspers
- University Dusseldorf, Medical
Faculty, Department of Diagnostic and
Interventional Radiology, D-40225 Dusseldorf, Germany
| | - Bernd Turowski
- University Dusseldorf, Medical
Faculty, Department of Diagnostic and
Interventional Radiology, D-40225 Dusseldorf, Germany
| | - Marius G Kaschner
- University Dusseldorf, Medical
Faculty, Department of Diagnostic and
Interventional Radiology, D-40225 Dusseldorf, Germany
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Zang NAM, Schneider M, Weiss D. Cortical mechanisms of movement recovery after freezing in Parkinson's disease. Neurobiol Dis 2022; 174:105871. [PMID: 36152946 DOI: 10.1016/j.nbd.2022.105871] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/31/2022] [Accepted: 09/19/2022] [Indexed: 11/25/2022] Open
Abstract
Involuntary interruptions of upper limb movements, referred to as "upper limb freezing" (ULF) belong to the most disabling symptoms of Parkinson's disease (PD). Our study aimed to explore the cortical neuronal mechanisms underlying the reinstation of regular movement after a freezing episode and to control them by voluntary stops. We hypothesized that this movement recovery after a freeze would be accompanied by a decrease of beta power (13-30 Hz) over the primary sensorimotor cortex (electrode "C3"). We recorded a 62-channel surface EEG in 14 PD patients during a repetitive finger tapping task. After performing time-frequency analysis of the EEG data we segmented it to i) regular finger taps, ii) ULF episodes, and iii) voluntary movement stops (VS). We analysed cortical activity during each movement modality and later focused on the last 500 ms of ULF and VS and the first half of the following regular tap. At the beginning of regular finger taps we found decreased alpha power (6-12 Hz) over C3 (P = 0.01). During ULF, there was no significant activity modulation in the alpha and beta frequency bands, whereas beta power increased over C3 during VS (P = 0.0038). When tapping was reinstated after a freeze, we found that 100 ms before movement onset beta power decreased first present over C3, followed by fronto-central electrodes and then reaching the ipsilateral right fronto-temporal electrodes when reinstating regular tapping (P = 0.0256). Initiating movement after a VS showed a different pattern with a decrease of parieto-occipital beta activity 200 ms prior to the first tap (P = 0.044). Our findings suggest that PD freezers make use of different cortical pathways when re-initiating movement after ULF or VS. This includes either fronto-central or parieto-occipital pathways. These findings may help to customize novel neuromodulation strategies to counteract freezing behaviour.
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Affiliation(s)
- Nicolas A M Zang
- Centre for Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany; Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Marlieke Schneider
- Centre for Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany; Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Daniel Weiss
- Centre for Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany; Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
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Weiss D, Wilms LM, Ivan VL, Vach M, Loberg C, Ziayee F, Kirchner J, Schimmöller L, Antoch G, Minko P. Complication Management and Prevention in Vascular and non-vascular Interventions. ROFO-FORTSCHR RONTG 2022; 194:1140-1146. [PMID: 35977554 DOI: 10.1055/a-1829-6055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
PURPOSE This overview summarizes key points of complication management in vascular and non-vascular interventions, particularly focusing on complication prevention and practiced safety culture. Flowcharts for intervention planning and implementation are outlined, and recording systems and conferences are explained in the context of failure analysis. In addition, troubleshooting by interventionalists on patient cases is presented. MATERIAL AND METHODS The patient cases presented are derived from our institute. Literature was researched on PubMed. RESULTS Checklists, structured intervention planning, standard operating procedures, and opportunities for error and complication discussion are important elements of complication management and essential for a practiced safety culture. CONCLUSION A systematic troubleshooting and a practiced safety culture contribute significantly to patient safety. Primarily, a rational and thorough error analysis is important for quality improvement. KEY POINTS · Establishing a safety culture is essential for high-quality interventions with few complications.. · A rational and careful troubleshooting is essential to increase quality of interventions.. · Checklists and SOPs can structure and optimize the procedure of interventions.. CITATION FORMAT · Weiss D, Wilms LM, Ivan VL et al. Complication Management and Prevention in Vascular and non-vascular Interventions. Fortschr Röntgenstr 2022; DOI: 10.1055/a-1829-6055.
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Affiliation(s)
- Daniel Weiss
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Lena Marie Wilms
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Vivien Lorena Ivan
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Marius Vach
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Christina Loberg
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Farid Ziayee
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Julian Kirchner
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Lars Schimmöller
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Gerald Antoch
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
| | - Peter Minko
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf 40225, Germany
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Weiss D, Ebersbach G, Möller JC, Schwarz J, Arlt C, Fritz B, Sensken SC, Eggert K. Do we start too late? Insights from the real-world non-interventional BALANCE study on the present use of levodopa/carbidopa intestinal gel in advanced Parkinson's disease in Germany and Switzerland. Parkinsonism Relat Disord 2022; 103:85-91. [DOI: 10.1016/j.parkreldis.2022.08.018] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 08/18/2022] [Accepted: 08/18/2022] [Indexed: 11/17/2022]
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Hoffman E, Asarian L, Eckstrom K, Ikonomou L, Kotton D, Weiss D. Tissue Engineering, Embryonic, Organ and Other Tissue Specific Stem Cells: HUMAN ALVEOLAR HYDROGELS PROMOTE EXPRESSION OF MATURATION AND TRANSDIFFERENTIATION MARKERS IN HUMAN IPSC-DERIVED ALVEOLAR TYPE 2 EPITHELIAL CELLS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00409-1] [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: 11/03/2022]
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Koeglsperger T, Alesch F, Buhmann C, Kinfe T, Rumpf J, Schnitzler A, Steiger B, Weiss D, Witt K, Mehrkens J, Levin J. P 51 Evaluation of a Visual-Analog Scale (VAS) for Remote DBS Programming (The REMOTE-Trial). Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.01.082] [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: 11/16/2022]
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Oppold J, Hormozi M, Breu M, Weiss D, Grimm A, Marquetand J. P 40 Muscle ultrasound in idiopathic Parkinson's disease with deep brain stimulation: Rigidity can be quantified by shear wave elastography. Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.01.071] [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: 11/03/2022]
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Löffler M, Cebi I, Hormozi M, Synofzik M, Gharabaghi A, Weiss D. FV 9 Deep Brain Stimulation for targeting tremor and ataxia in SCA 27. Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.01.017] [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: 11/03/2022]
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Weiss D, Kabbasch C, Lichtenstein T, Turowski B, Kaschner M. A fully radiopaque hybrid stent retriever versus a precursor device: Outcome, efficacy, and safety in large vessel stroke. J Neuroimaging 2022; 32:947-955. [PMID: 35415956 DOI: 10.1111/jon.12999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/17/2022] [Accepted: 03/20/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE The aim of this multicenter study was to compare the clinical outcome, safety, and efficacy of the full-length radiopaque Aperio Hybrid stent retriever (APH) with the precursor Aperio thrombectomy device (AP). METHODS Multicentric retrospective analysis of patients with stroke, treated with the APH and AP due to an acute ischemic stroke by large vessel occlusions in the anterior or posterior circulation, was performed. We focused on the comparison of favorable clinical outcome (modified Rankin Scale, 0-2) after 3 months, favorable reperfusion rates (thrombolysis in cerebral infarction scale ≥ 2b), and the complication rate. RESULTS A total of 51 patients (female: n = 33, 64.7%, mean age 73 ± 16 years) with a median baseline National Institutes of Health Stroke Scale: 15 were treated with the APH or AP. Favorable outcome in patients treated with APH was excellent (44.0%) and comparable to the AP (36.8%). The rate of final favorable reperfusion for both devices was outstanding (APH 31/31 and AP 20/20). The overall complication rate for the APH was slightly higher compared to the AP (32.3%/15.0%). Symptomatic intracranial hemorrhage was recorded in 0 of 51 cases. The all-cause mortality rate at 90 days was 20.0% for the APH and comparable for the AP (21.1%). CONCLUSIONS Comparable clinical outcome, efficacy, and safety of the AP and the recently introduced APH were demonstrated. Both devices appeared feasible, efficient, and safe with regard to endovascular treatment in large vessel occlusion.
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Affiliation(s)
- Daniel Weiss
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf, 40225, Germany
| | - Christoph Kabbasch
- Department of Diagnostic and Interventional Radiology, University Cologne, Medical Faculty, Cologne, 50937, Germany
| | - Thorsten Lichtenstein
- Department of Diagnostic and Interventional Radiology, University Cologne, Medical Faculty, Cologne, 50937, Germany
| | - Bernd Turowski
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf, 40225, Germany
| | - Marius Kaschner
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Düsseldorf, 40225, Germany
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Bertaina A, Abraham A, Bonfim C, Cohen S, Purtill D, Ruggeri A, Weiss D, Wynn R, Boelens JJ, Prockop S. An ISCT Stem Cell Engineering Committee Position Statement on Immune Reconstitution: the importance of predictable and modifiable milestones of immune reconstitution to transplant outcomes. Cytotherapy 2022; 24:385-392. [PMID: 35331394 DOI: 10.1016/j.jcyt.2021.09.011] [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: 06/21/2021] [Revised: 09/14/2021] [Accepted: 09/18/2021] [Indexed: 11/19/2022]
Abstract
Allogeneic stem cell transplantation is a potentially curative therapy for some malignant and non-malignant disease. There have been substantial advances since the approaches first introduced in the 1970s, and the development of approaches to transplant with HLA incompatible or alternative donors has improved access to transplant for those without a fully matched donor. However, success is still limited by morbidity and mortality from toxicity and imperfect disease control. Here we review our emerging understanding of how reconstitution of effective immunity after allogeneic transplant can protect from these events and improve outcomes. We provide perspective on milestones of immune reconstitution that are easily measured and modifiable.
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Affiliation(s)
- Alice Bertaina
- Center for Cancer and Immunology Research, CETI, Children's National Hospital, Washington, District of Columbia, USA
| | - Allistair Abraham
- Division of Hematology, Oncology, Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Stanford University, Stanford, California, USA
| | - Carmem Bonfim
- Pediatric Bone Marrow Transplantation Division, Hospital Pequeno Principe, Curitiba, Brazil
| | - Sandra Cohen
- Université de Montréal and Maisonneuve Rosemont Hospital, Montréal, Québec, Canada
| | - Duncan Purtill
- Department of Haematology, Fiona Stanley Hospital, Perth, Western Australia, Australia
| | | | | | - Robert Wynn
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Jaap Jan Boelens
- Stem Cell Transplantation and Cellular Therapies, Memorial Sloan Kettering Cancer Center, and Department of Pediatrics, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Susan Prockop
- Stem Cell Transplant Program, Division of Hematology/Oncology Boston Children's Hospital and Department of Pediatric Oncology, Dana Farber Cancer Institute.
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Schwob N, Epping A, Taglialatela J, Weiss D. The early bonobo gets the juice? The evolutionary roots of pre-crastination in bonobos (Pan paniscus). Anim Behav Cogn 2022. [DOI: 10.26451/abc.09.01.02.2022] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Pre-crastination refers to the propensity to initiate tasks at the earliest possible moment. Research with human adults has found that some individuals consistently chose to transport a nearby object a further distance rather than delay initiation of the transport to select an object closer to the target. This phenomenon has never been tested in animals using analogous methods. Consequently, we tested bonobos – the species most closely related to humans - using two versions of a comparable transport task. Overall, we found that all five bonobos tended to select the first object they encountered to transport to the goal. Unlike humans, the bonobos sometimes transported both available objects. Two of the five bonobos consistently pre-crastinated, a similar proportion to that found in human experiments. However, if the pre-crastination choice was non-functional, the bonobos chose the motorically efficient choice. In sum, our findings provide an existence proof for pre-crastination tendencies in some bonobos, akin to the distribution of this trait in humans. We discuss the possibility that the pre-crastination choice represents an automatic response triggered by the affordances of the objects encountered.
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Breu MS, Schneider M, Klemt J, Cebi I, Gharabaghi A, Weiss D. People With Parkinson’s Disease and Freezing of Gait Show Abnormal Low Frequency Activity of Antagonistic Leg Muscles. Front Hum Neurosci 2022; 15:733067. [PMID: 35153698 PMCID: PMC8825470 DOI: 10.3389/fnhum.2021.733067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 12/03/2021] [Indexed: 11/25/2022] Open
Abstract
Objective Freezing of gait is detrimental to patients with idiopathic Parkinson’s disease (PD). Its pathophysiology represents a multilevel failure of motor processing in the cortical, subcortical, and brainstem circuits, ultimately resulting in ineffective motor output of the spinal pattern generator. Electrophysiological studies pointed to abnormalities of oscillatory activity in freezers that covered a broad frequency range including the theta, alpha, and beta bands. We explored muscular frequency domain activity with respect to freezing, and used deep brain stimulation to modulate these rhythms thereby evaluating the supraspinal contributions to spinal motor neuron activity. Methods We analyzed 9 PD freezers and 16 healthy controls (HC). We studied the patients after overnight withdrawal of dopaminergic medication with stimulation off, stimulation of the subthalamic nucleus (STN-DBSonly) or the substantia nigra pars reticulate (SNr-DBSonly), respectively. Patients performed a walking paradigm passing a narrow obstacle. We analyzed the frequency-domain spectra of the tibialis anterior (TA) and gastrocnemius (GA) muscles in ‘regular gait’ and during the ‘freezing’ episodes. Results In stimulation off, PD freezers showed increased muscle activity of the alpha and low-beta band compared to HC in both TA and GA. This activity increase was present during straight walking and during the freezes to similar extent. STN- but not SNr-DBS decreased this activity and paralleled the clinical improvement of freezing. Conclusion We found increased muscle activation of the alpha and lower beta band in PD freezers compared to HC, and this was attenuated with STN-DBS. Future studies may use combined recordings of local field potentials, electroencephalography (EEG), and electromyography (EMG) to interrogate the supraspinal circuit mechanisms of the pathological activation pattern of the spinal pattern generator.
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Affiliation(s)
- Maria-Sophie Breu
- Centre of Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Tübingen, Germany
- *Correspondence: Maria-Sophie Breu,
| | - Marlieke Schneider
- Centre of Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Tübingen, Germany
| | - Johannes Klemt
- Centre of Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Tübingen, Germany
| | - Idil Cebi
- Centre of Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Tübingen, Germany
| | - Alireza Gharabaghi
- Centre for Neurosurgery, Institute for Neuromodulation and Neurotechnology, University of Tübingen, Tübingen, Germany
| | - Daniel Weiss
- Centre of Neurology, Department of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Tübingen, Germany
- Daniel Weiss,
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Esper CD, Merola A, Himes L, Patel N, Bezchlibnyk YB, Falconer D, Weiss D, Luca C, Cheeran B, Mari Z. Necessity and feasibility of remote tele-programming of deep brain stimulation systems in Parkinson's disease. Parkinsonism Relat Disord 2022; 96:38-42. [DOI: 10.1016/j.parkreldis.2022.01.017] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/08/2022] [Accepted: 01/17/2022] [Indexed: 10/19/2022]
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Koy A, Kühn AA, Huebl J, Schneider GH, van Riesen AK, Eckenweiler M, Rensing-Zimmermann C, Coenen VA, Krauss JK, Saryyeva A, Hartmann H, Haeussler M, Volkmann J, Matthies C, Horn A, Schnitzler A, Vesper J, Gharabaghi A, Weiss D, Bevot A, Marks W, Pomykal A, Monbaliu E, Borck G, Mueller J, Prinz-Langenohl R, Dembek T, Visser-Vandewalle V, Wirths J, Schiller P, Hellmich M, Timmermann L. Quality of Life after Deep Brain Stimulation of Pediatric Patients With Dyskinetic Cerebral Palsy: A Prospective, Single-Arm, Multicenter Study With a Subsequent Randomized Double-Blind Crossover (STIM-CP). Mov Disord 2021; 37:799-811. [PMID: 34967053 DOI: 10.1002/mds.28898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/05/2021] [Accepted: 12/08/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Patients with dyskinetic cerebral palsy are often severely impaired with limited treatment options. The effects of deep brain stimulation (DBS) are less pronounced than those in inherited dystonia but can be associated with favorable quality of life outcomes even in patients without changes in dystonia severity. OBJECTIVE The aim is to assess DBS effects in pediatric patients with pharmacorefractory dyskinetic cerebral palsy with focus on quality of life. METHODS The method used is a prospective, single-arm, multicenter study. The primary endpoint is improvement in quality of life (CPCHILD [Caregiver Priorities & Child Health Index of Life with Disabilities]) from baseline to 12 months under therapeutic stimulation. The main key secondary outcomes are changes in Burke-Fahn-Marsden Dystonia Rating Scale, Dyskinesia Impairment Scale, Gross Motor Function Measure-66, Canadian Occupational Performance Measure (COPM), and Short-Form (SF)-36. After 12 months, patients were randomly assigned to a blinded crossover to receive active or sham stimulation for 24 hours each. Severity of dystonia and chorea were blindly rated. Safety was assessed throughout. The trial was registered at ClinicalTrials.gov, number NCT02097693. RESULTS Sixteen patients (age: 13.4 ± 2.9 years) were recruited by seven clinical sites. Primary outcome at 12-month follow-up is as follows: mean CPCHILD increased by 4.2 ± 10.4 points (95% CI [confidence interval] -1.3 to 9.7; P = 0.125); among secondary outcomes: improvement in COPM performance measure of 1.1 ± 1.5 points (95% CI 0.2 to 1.9; P = 0.02) and in the SF-36 physical health component by 5.1 ± 6.2 points (95% CI 0.7 to 9.6; P = 0.028). Otherwise, there are no significant changes. CONCLUSION Evidence to recommend DBS as routine treatment to improve quality of life in pediatric patients with dyskinetic cerebral palsy is not yet sufficient. Extended follow-up in larger cohorts will determine the impact of DBS further to guide treatment decisions in these often severely disabled patients.
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Affiliation(s)
- Anne Koy
- Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Andrea A Kühn
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
| | - Julius Huebl
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany.,Department of Neurology, Munich Municipal Hospital Bogenhausen, Munich, Germany
| | | | - Anne K van Riesen
- Department of Pediatric Neurology, University Medical Center Göttingen, Göttingen, Germany
| | - Matthias Eckenweiler
- Department of Neuropediatrics and Muscle Disorders, University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cornelia Rensing-Zimmermann
- Department of Neuropediatrics and Muscle Disorders, University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Volker Arnd Coenen
- Department of Stereotactic and Functional Neurosurgery, University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Department of Stereotactic and Functional Neurosurgery, Center for Deep Brain Stimulation, University Medical Center, Freiburg, Germany
| | - Joachim K Krauss
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Assel Saryyeva
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Hans Hartmann
- Department of Pediatrics, Clinic for Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Martin Haeussler
- Department of Pediatrics, University Hospital Würzburg, Würzburg, Germany
| | - Jens Volkmann
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Cordula Matthies
- Department of Stereotactic and Functional Neurosurgery, University Hospital Würzburg, Würzburg, Germany
| | - Annette Horn
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Alfons Schnitzler
- Department of Neurology, Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,Department of Neurology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Jan Vesper
- Department of Functional Neurosurgery and Stereotaxy, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Alireza Gharabaghi
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen, Germany
| | - Daniel Weiss
- Centre for Neurology, Department for Neurodegenerative Diseases, and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Andrea Bevot
- Department of Pediatrics, Medical Faculty, University of Tübingen, Tübingen, Germany
| | - Warren Marks
- Department of Neurology, Cook Children's Medical Center, Fort Worth, Texas, USA.,Department of Pediatrics, University of North Texas Health Sciences Center, Fort Worth, Texas, USA
| | - Angela Pomykal
- Department of Neurology, Cook Children's Medical Center, Fort Worth, Texas, USA
| | - Elegast Monbaliu
- Department of Rehabilitation Sciences, KU Leuven Campus Bruges, Brugge, Belgium
| | | | - Joerg Mueller
- Department of Neurology, Vivantes Klinikum Spandau, Berlin, Germany
| | | | - Till Dembek
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Veerle Visser-Vandewalle
- Department of Stereotactic and Functional Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jochen Wirths
- Department of Stereotactic and Functional Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Petra Schiller
- Institute of Medical Statistics and Computational Biology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Martin Hellmich
- Institute of Medical Statistics and Computational Biology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Lars Timmermann
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Department of Neurology, University Hospital of Marburg, Marburg, Germany
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Weiss D, Höglinger G, Klostermann F, Weise D, Zeuner KE, Reichmann H. [Hallucinations in Patients with Idiopathic Parkinson's Disease]. Fortschr Neurol Psychiatr 2021; 90:456-464. [PMID: 34844278 DOI: 10.1055/a-1670-7111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Patients with idiopathic Parkinson's disease develop symptoms of the hallucination-psychosis spectrum in more than 20%. Most common are visual hallucinations. The pathogenesis of hallucinations mainly depends on disease duration, the distribution and extent of alpha-synuclein pathology, and modulating effects of the dopaminergic therapy. When managing PD hallucinations both anti-delirogenic actions and medication management are important. However, decrease in dopaminergic medication may lead to critical worsening of akinesia. If appropriate neuroleptic medication - essentially quetiapin or clozapin - can be considered. Instead, anti-dopaminergic neuroleptics should not be used owing to their pro-akinetic side-effects. Here, we provide therapy recommendations to manage PD hallucinations based on an up-to-date targeted review of the literature and expert-based empirical evidence.
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Affiliation(s)
- Daniel Weiss
- Neurologische Klinik mit Schwerpunkt Neurodegenerative Erkrankungen und Hertie-Institut für Klinische Hirnforschung, Universitätsklinikum Tübingen, Deutschland
| | - Günter Höglinger
- Klinik für Neurologie mit Klinischer Neurophysiologie, Medizinisch Hochschule Hannover, Deutschland
| | - Fabian Klostermann
- Klinik für Neurologie mit Experimenteller Neurologie, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Deutschland
| | - David Weise
- Klinik für Neurologie, Schmerztherapie und Schlafmedizin, Asklepios Fachklinikum Stadtroda, Deutschland
| | - Kirsten E Zeuner
- Klinik für Neurologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Deutschland
| | - Heinz Reichmann
- Klinik und Poliklinik für Neurologie, Universitätsklinikum Carl Gustav Carus Dresden, Deutschland
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Weiss D, Latorre M, Rego BV, Cavinato C, Tanski BJ, Berman AG, Goergen CJ, Humphrey JD. Biomechanical consequences of compromised elastic fiber integrity and matrix cross-linking on abdominal aortic aneurysmal enlargement. Acta Biomater 2021; 134:422-434. [PMID: 34332103 DOI: 10.1016/j.actbio.2021.07.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/07/2021] [Accepted: 07/23/2021] [Indexed: 12/25/2022]
Abstract
Abdominal aortic aneurysms (AAAs) are characterized histopathologically by compromised elastic fiber integrity, lost smooth muscle cells or their function, and remodeled collagen. We used a recently introduced mouse model of AAAs that combines enzymatic degradation of elastic fibers and blocking of lysyl oxidase, and thus matrix cross-linking, to study progressive dilatation of the infrarenal abdominal aorta, including development of intraluminal thrombus. We quantified changes in biomaterial properties and biomechanical functionality within the aneurysmal segment as a function of time of enlargement and degree of thrombosis. Towards this end, we combined multi-modality imaging with state-of-the art biomechanical testing and histology to quantify regional heterogeneities for the first time and we used a computational model of arterial growth and remodeling to test multiple hypotheses, suggested by the data, regarding the degree of lost elastin, accumulation of glycosaminoglycans, and rates of collagen turnover. We found that standard histopathological findings can be misleading, while combining advanced experimental and computational methods revealed that glycosaminoglycan accumulation is pathologic, not adaptive, and that heightened collagen deposition is ineffective if not cross-linked. In conclusion, loss of elastic fiber integrity can be a strong initiator of aortic aneurysms, but it is the rate and effectiveness of fibrillar collagen remodeling that dictates enlargement. STATEMENT OF SIGNIFICANCE: Precise mechanisms by which abdominal aortic aneurysms enlarge remain unclear, but a recent elastase plus β-aminopropionitrile mouse model provides new insight into disease progression. As in the human condition, the aortic degeneration and adverse remodeling are highly heterogeneous in this model. Our multi-modality experiments quantify and contrast the heterogeneities in geometry and biomaterial properties, and our computational modeling shows that standard histopathology can be misleading. Neither accumulating glycosaminoglycans nor frustrated collagen synthesis slow disease progression, thus highlighting the importance of stimulating adaptive collagen remodeling to limit lesion enlargement.
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Affiliation(s)
- D Weiss
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - M Latorre
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - B V Rego
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - C Cavinato
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - B J Tanski
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - A G Berman
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - C J Goergen
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - J D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA; Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, CT, USA.
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Abdelaty H, Weiss D. R&D capacity and the innovation collaboration paradox: the moderating role of the appropriation strategy. Innovation 2021. [DOI: 10.1080/14479338.2021.1971992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hamdy Abdelaty
- Business Administration Department, Cairo University, Giza, Egypt
- Chair of Innovation Management, Free University Berlin, Berlin, Germany
| | - Daniel Weiss
- Chair of Innovation Management, Free University Berlin, Berlin, Germany
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Abstract
Objective: Paramedicine in Canada has experienced significant growth in recent years, which has resulted in a misalignment between existing guiding conceptualizations and how the profession is structured and enacted in practice. As a result, well-established boundaries, directions, and priorities may be poorly aligned with existing frameworks. The objective of this study was to explore emerging and future states of paramedicine in Canada such that guiding principles could be derived. We asked: How should paramedicine be conceptualized and enacted in Canada going forward, and, what might be the necessary enablers? Methods: This study involved in-depth one-on-one semi-structured interviews with Canadian paramedicine thought leaders. We used purposive and snowball sampling strategies to identify potential participants. Interview guide questions were used to stimulate discussion about the future of paramedicine in Canada and suggestions for implementation. We used inductive qualitative content analysis as our analytical approach, informed by a constructivist and interpretivist orientation. Results: Thirty-five key informants from across Canada participated in interviews. Ten themes were identified: (1) prioritizing patients and their communities; (2) providing health care along a health and social continuum; (3) practicing within an integrated health care framework, and partnering across sectors; (4) being socially responsive; (5) enacting professional autonomy; (6) integrating the health of professionals; (7) using quality-based frameworks; (8) enacting intelligent access to and distribution of services; (9) enacting a continuous learning environment; and, (10) being evidence-informed in practice and systems. Six enablers were also identified: shift professional culture and identity, enhance knowledge, promote shared understanding of paramedicine, integrate data environments, leverage advancing technology, advance policy, regulation and legislation. Conclusions: Our results provide a conceptual framework made up of guiding principles and enablers that provide a consolidated lens to advance the paramedicine profession in Canada (and elsewhere as appropriate) while ensuring contextual and regional needs and differences can be accounted for.
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Sharma VD, Safarpour D, Mehta SH, Vanegas-Arroyave N, Weiss D, Cooney JW, Mari Z, Fasano A. Telemedicine and Deep brain stimulation - Current practices and recommendations. Parkinsonism Relat Disord 2021; 89:199-205. [PMID: 34274215 DOI: 10.1016/j.parkreldis.2021.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/25/2021] [Accepted: 07/05/2021] [Indexed: 12/12/2022]
Abstract
The use of telemedicine in the management of chronic neurological conditions including movement disorders has expanded over time. In addition to enabling remote access to specialized care, telemedicine has also been shown to reduce caregiver burden and to improve patient satisfaction. With the COVID-19 pandemic, implementation of telehealth for patients with movement disorders, particularly those with more severe mobility issues, has increased rapidly. Although telemedicine care has been shown to be effective for patients with various movement disorders, its utilization for patients with device aided therapies such as deep brain stimulation (DBS) is limited due to challenges related to adjusting these devices remotely and to the lack of consensus recommendations for using telemedicine in this patient population. Thus, guidelines for telemedicine and DBS will assist clinicians on the appropriate implementation of telemedicine to provide care to DBS patients. Optimizing the use of telemedicine for DBS will expand this type of therapy to remote locations with limited access to programming expertise, and also reduce the need for patient travel. Telemedicine is particularly important during the ongoing pandemic due to infection risk and limited access to clinic visits. In this article we review the currently available and emerging strategies for telemedicine and remote care for DBS. We then outline common principles and recommendations for telemedicine care in patients with DBS, review patient selection and best practices. Finally, we briefly discuss the current state of reimbursement for DBS telemedicine visits.
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Affiliation(s)
- Vibhash D Sharma
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA.
| | - Delaram Safarpour
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA
| | | | | | - Daniel Weiss
- Centre for Neurology, Department for Neurodegenerative Disease, and Hertie-Institute for Clinical Brain Research, Tübingen, Germany
| | - Jeffrey W Cooney
- Department of Neurology, Duke University School of Medicine, Durham, NC, USA
| | - Zoltan Mari
- Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV, USA
| | - Alfonso Fasano
- Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, Ontario, Canada. Division of Neurology, University of Toronto, Toronto, Ontario, Canada; Krembil Brain Institute, Toronto, Ontario, Canada; Center for Advancing Neurotechnological Innovation to Application (CRANIA), Toronto, ON, Canada
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Weiss D, Volkmann J, Fasano A, Kühn A, Krack P, Deuschl G. Changing Gears - DBS For Dopaminergic Desensitization in Parkinson's Disease? Ann Neurol 2021; 90:699-710. [PMID: 34235776 DOI: 10.1002/ana.26164] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 12/19/2022]
Abstract
In Parkinson's disease, both motor and neuropsychiatric complications unfold as a consequence of both incremental striatal dopaminergic denervation and intensifying long-term dopaminergic treatment. Together, this leads to 'dopaminergic sensitization' steadily increasing motor and behavioral responses to dopaminergic medication that result in the detrimental sequalae of long-term dopaminergic treatment. We review the clinical presentations of 'dopaminergic sensitization', including rebound off and dyskinesia in the motor domain, and neuropsychiatric fluctuations and behavioral addictions with impulse control disorders and dopamine dysregulation syndrome in the neuropsychiatric domain. We summarize state-of-the-art deep brain stimulation, and show that STN-DBS allows dopaminergic medication to be tapered, thus supporting dopaminergic desensitization. In this framework, we develop our integrated debatable viewpoint of "changing gears", that is we suggest rethinking earlier use of subthalamic nucleus deep brain stimulation, when the first clinical signs of dopaminergic motor or neuropsychiatric complications emerge over the steadily progressive disease course. In this sense, subthalamic deep brain stimulation may help reduce longitudinal motor and neuropsychiatric symptom expression - importantly, not by neuroprotection but by supporting dopaminergic desensitization through postoperative medication reduction. Therefore, we suggest considering STN-DBS early enough before patients encounter potentially irreversible psychosocial consequences of dopaminergic complications, but importantly not before a patient shows first clinical signs of dopaminergic complications. We propose to consider neuropsychiatric dopaminergic complications as a new inclusion criterion in addition to established motor criteria, but this concept will require validation in future clinical trials. ANN NEUROL 2021.
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Affiliation(s)
- Daniel Weiss
- Centre for Neurology, Department for Neurodegenerative Diseases, and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Jens Volkmann
- Department of Neurology, University Hospital and Julius-Maximilian-University, Würzburg, Germany
| | - Alfonso Fasano
- Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON, Canada.,Division of Neurology, University of Toronto, Toronto, ON, Canada.,Krembil Brain Institute, Toronto, ON, Canada.,Center for Advancing Neurotechnological Innovation to Application (CRANIA), Toronto, ON, Canada
| | - Andrea Kühn
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Paul Krack
- Department of Neurology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Günther Deuschl
- Department of Neurology, University Hospital Schleswig Holstein (UKSH), Christian-Albrechts-University Kiel, Kiel, Germany
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Safran H, Druta M, Morse M, Lynce F, Pintova S, Almhanna K, Weiss D, Gianella-Borradori A, Ogita Y, Morley R, Nakamura M, Matsushima J, Ishiguro T. Abstract CT111: Results of a phase 1 dose escalation study of ERY974, an anti-glypican 3 (GPC3)/CD3 bispecific antibody, in patients with advanced solid tumors. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-ct111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: ERY974, a bispecific T cell-redirecting antibody, redirects T cells to tumor cells by engaging the CD3 antigen on T cells and the glypican 3 (GPC3) antigen selectively expressed on tumors. ERY974 demonstrates T cell-dependent cellular cytotoxicity in vitro and transient cytokine elevations in preclinical toxicology studies (Ishiguro et al. 2017). The primary objective of this dose escalation (DE) study was to determine ERY974's maximum tolerated dose in patients with locally advanced or metastatic solid tumors expressing GPC3. Methods: The study included adult patients with advanced or metastatic solid tumors not amenable to standard therapy, histologically confirmed, with measurable disease and a life expectancy ≥ 3 months, including patients with ≤ 1cm and ≤ 1 brain metastasis. Patients with interstitial lung disease, or acute/active chronic infection were excluded. ERY974 was administered IV and dosed weekly. DE was initiated with an accelerated titration design of single patient cohorts followed by three patient cohorts. To mitigate for the toxicity of cytokine release syndrome (CRS), steroid prophylaxis and a flexible study design was implemented which included a two-step intra-patient escalation (regimen A), and a three-step intra-patient escalation (regimen B). Results: 29 patients were enrolled in dose levels ranging from 0.003 μg/kg to 0.81 μg/kg. Treatment-related adverse events that occurred in greater than 20% of patients included CRS and pyrexia. Dose level 0.81 μg/kg (regimen A) was confirmed not tolerable due to DLTs of Grade 3 CRS and Grade 2 CRS in two out of three patients (assessed according to Lee, et al. 2014). The Grade 3 CRS was associated with Grade 3 transaminitis and a Grade 3 elevation of bilirubin. Both CRS events led to dose delay and dose reduction. Increases in IL-6, IL-8 and IL-10 were observed in patients with the CRS. The severity and frequency of CRS in regimen B were similar to those observed in regimen A at the same dose level. One partial response (per modified RECIST criteria) was observed in a patient with esophageal cancer treated with 0.54 μg/kg (regimen B) and having 40% of the tumor tissue staining positive for GPC3 via immunohistochemistry. Stable disease lasting 3 months or longer was observed in four patients. Conclusions: The observed responses and CRS side effects are markers of ERY974 biologic activity. At doses below 0.81 μg/kg (regimen A), ERY974 was generally well tolerated with a manageable toxicity profile, including ERY-induced CRS which was manageable with steroid administration and anti-IL6R therapy. Further research is required to determine if combined prophylactic anti-IL6R and steroid therapy is a more effective strategy for managing CRS. References: 1. Ishiguro, Takahiro, et al. Science translational medicine, 2017, 9.410: eaal4291. 2. Lee, Daniel W., et al. Blood, 2014, 124.2: 188-195.
Citation Format: Howard Safran, Mihaela Druta, Michael Morse, Filipa Lynce, Sofya Pintova, Khaldoun Almhanna, Daniel Weiss, Athos Gianella-Borradori, Yoshitaka Ogita, Roland Morley, Mikiko Nakamura, Junnosuke Matsushima, Takahiro Ishiguro. Results of a phase 1 dose escalation study of ERY974, an anti-glypican 3 (GPC3)/CD3 bispecific antibody, in patients with advanced solid tumors [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr CT111.
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Dutra Silva J, Su Y, Calfee CS, Delucchi KL, Weiss D, McAuley DF, O'Kane C, Krasnodembskaya AD. Mesenchymal stromal cell extracellular vesicles rescue mitochondrial dysfunction and improve barrier integrity in clinically relevant models of ARDS. Eur Respir J 2021; 58:13993003.02978-2020. [PMID: 33334945 PMCID: PMC8318599 DOI: 10.1183/13993003.02978-2020] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [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: 08/03/2020] [Accepted: 12/02/2020] [Indexed: 12/22/2022]
Abstract
Alveolar epithelial–capillary barrier disruption is a hallmark of acute respiratory distress syndrome (ARDS). Contribution of mitochondrial dysfunction to the compromised alveolar-capillary barrier in ARDS remains unclear. Mesenchymal stromal cells-derived extracellular vesicles (MSC-EVs) are considered as a cell-free therapy for ARDS. Mitochondrial transfer was shown to be important for the therapeutic effects of MSCs and MSC-EVs. Here we investigated the contribution of mitochondrial dysfunction to the injury of alveolar epithelial and endothelial barriers in ARDS and the ability of MSC-EVs to modulate alveolar–capillary barrier integrity through mitochondrial transfer. Primary human small airway epithelial and pulmonary microvascular endothelial cells and human precision cut lung slices (PCLSs) were stimulated with endotoxin or plasma samples from patients with ARDS and treated with MSC-EVs, barrier properties and mitochondrial functions were evaluated. Lipopolysaccharide (LPS)-injured mice were treated with MSC-EVs and degree of lung injury and mitochondrial respiration of the lung tissue were assessed. Inflammatory stimulation resulted in increased permeability coupled with pronounced mitochondrial dysfunction in both types of primary cells and PCLSs. Extracellular vesicles derived from normal MSCs restored barrier integrity and normal levels of oxidative phosphorylation while an extracellular vesicles preparation which did not contain mitochondria was not effective. In vivo, presence of mitochondria was critical for extracellular vesicles ability to reduce lung injury and restore mitochondrial respiration in the lung tissue. In the ARDS environment, MSC-EVs improve alveolar–capillary barrier properties through restoration of mitochondrial functions at least partially via mitochondrial transfer. This study demonstrates that mitochondrial dysfunction is an important mechanism of ARDS pathogenesis. Mitochondrial transfer is crucial for the ability of MSC extracellular vesicles to restore integrity of the alveolar–capillary barrier.https://bit.ly/2JuqoCY
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Affiliation(s)
- Johnatas Dutra Silva
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Yue Su
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Carolyn S Calfee
- Dept of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of California, San Francisco, San Francisco, CA, USA.,Dept of Anesthesia, University of California, San Francisco, San Francisco, CA, USA.,Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Kevin L Delucchi
- Dept of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
| | - Daniel Weiss
- Dept of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Danny F McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Cecilia O'Kane
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Anna D Krasnodembskaya
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Sciences, Queen's University Belfast, Belfast, UK
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Demma J, Weiss D, Kedar A, Shussman N, Zamir G, Pikarsky A, Bala M. Splenic infarction complicated with abscess after pelvic trauma as the first presentation of patent foramen ovale - A case report. Trauma Case Rep 2021; 33:100479. [PMID: 34027002 PMCID: PMC8121688 DOI: 10.1016/j.tcr.2021.100479] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2021] [Indexed: 11/29/2022] Open
Abstract
Hypercoagulability after trauma is a known entity. Following significant trauma, most guidelines advise anticoagulation treatment for venous thromboembolism (VTE) prophylaxis. VTE following minor trauma convoyed with arterial or systemic embolization dictate the need to search for uncommon source of thromboembolic complications. This is a report of an unusual case of pulmonary and systemic emboli complicated by splenic abscess following minor trauma in a patient with Diabetes Mellitus as the first presentation of patent foramen ovale (PFO).
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Affiliation(s)
- J Demma
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - D Weiss
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - A Kedar
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - N Shussman
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - G Zamir
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - A Pikarsky
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - M Bala
- General Surgery and Traumatology Department, Hadassah Hebrew University Medical Center, Jerusalem, Israel
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Murtada SI, Kawamura Y, Weiss D, Humphrey JD. Differential biomechanical responses of elastic and muscular arteries to angiotensin II-induced hypertension. J Biomech 2021; 119:110297. [PMID: 33647550 DOI: 10.1016/j.jbiomech.2021.110297] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 01/15/2021] [Accepted: 01/23/2021] [Indexed: 12/23/2022]
Abstract
Elastic and muscular arteries are distinguished by their distinct microstructures, biomechanical properties, and smooth muscle cell contractile functions. They also exhibit differential remodeling in aging and hypertension. Although regional differences in biomechanical properties have been compared, few studies have quantified biaxial differences in response to hypertension. Here, we contrast passive and active changes in large elastic and medium- and small-sized muscular arteries in adult mice in response to chronic infusion of angiotensin over 14 days. We found a significant increase in wall thickness, both medial and adventitial, in the descending thoracic aorta that associated with trends of an increased collagen:elastin ratio. There was adventitial thickening in the small-sized mesenteric artery, but also significant changes in elastic lamellar structure and contractility. An increased contractile response to phenylephrine coupled with a reduced vasodilatory response to acetylcholine in the mesenteric artery suggested an increased contractile state in response to hypertension. Overall reductions in the calculated gradients in pulse wave velocity and elastin energy storage capability from elastic-to-muscular arteries suggested a possible transfer of excessive pulsatile energy into the small-sized muscular arteries resulting in significant functional consequences in response to hypertension.
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Affiliation(s)
- S-I Murtada
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.
| | - Y Kawamura
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - D Weiss
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - J D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA; Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, CT, USA
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McGill JB, Weiss D, Grant M, Jones MC, Kendall DM, Hoogwerf BJ. Understanding inhaled Technosphere Insulin: Results of an early randomized trial in type 1 diabetes mellitus. J Diabetes 2021; 13:164-172. [PMID: 32737923 DOI: 10.1111/1753-0407.13099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/15/2020] [Accepted: 07/24/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Technosphere Insulin (TI) is an inhaled insulin. Studies comparing TI with short-acting insulin analogues provide important insights on efficacy, dosing, and time course of action. METHODS Planned enrollment of 230 subjects was limited to 138 due to premature study discontinuation. The primary efficacy endpoint was a noninferiority of glycosylated hemoglobin (HbA1c) of 0.4% for TI compared with insulin lispro (LIS) in a 16-week phase 3 randomized clinical trial in type 1 diabetes mellitus. RESULTS HbA1c values were similar in the TI and LIS groups at the beginning of the trial (7.8% and 7.6%, respectively) and at trial endpoint (7.7% and 7.6%, respectively). Least squares mean changes from baseline were similar between study groups. Glucose values after a standard meal were significantly lower with TI in the first 90 minutes post meal compared with LIS. Mild or moderate hypoglycemia event rates were also significantly lower with TI compared with LIS (5.97 vs 8.01, respectively; P = .0269). Cough was the most commonly reported adverse event with TI. Pulmonary function as measured by forced expiratory volume in 1 second was not different between groups at baseline, 16 weeks, or 4 weeks off study drug. CONCLUSIONS HbA1c was unchanged and overall glucose control was comparable between groups. Treatment with TI resulted in improved post-meal glucose and a lower risk of hypoglycemia compared with LIS.
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Affiliation(s)
- Janet B McGill
- Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, St Louis, Missouri, USA
| | - Daniel Weiss
- Your Diabetes Endocrine Nutrition Group, Inc, Mentor, Ohio, USA
| | | | | | | | - Byron J Hoogwerf
- Endocrinology, Diabetes and Metabolism (Emeritus), Cleveland Clinic, Cleveland, Ohio, USA
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Borders A, Weiss D, Zumpf K, Lee King P. 1137 Improving outcomes for mothers affected by opioids across diverse hospitals through statewide quality improvement. Am J Obstet Gynecol 2021. [DOI: 10.1016/j.ajog.2020.12.1161] [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: 10/22/2022]
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