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Zulfaj E, Nejat A, Haamid A, Elmahdy A, Espinosa A, Redfors B, Omerovic E. Animal models of Takotsubo syndrome: bridging the gap to the human condition. Front Cardiovasc Med 2024; 11:1351587. [PMID: 38841261 PMCID: PMC11152046 DOI: 10.3389/fcvm.2024.1351587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/18/2024] [Indexed: 06/07/2024] Open
Abstract
Modelling human diseases serves as a crucial tool to unveil underlying mechanisms and pathophysiology. Takotsubo syndrome (TS), an acute form of heart failure resembling myocardial infarction, manifests with reversible regional wall motion abnormalities (RWMA) of the ventricles. Despite its mortality and clinical similarity to myocardial infarction, TS aetiology remains elusive, with stress and catecholamines playing central roles. This review delves into current animal models of TS, aiming to assess their ability to replicate key clinical traits and identifying limitations. An in-depth evaluation of published animal models reveals a variation in the definition of TS among studies. We notice a substantial prevalence of catecholamine-induced models, particularly in rodents. While these models shed light on TS, there remains potential for refinement. Translational success in TS research hinges on models that align with human TS features and exhibit the key features, including transient RWMA. Animal models should be comprehensively evaluated regarding the various systemic changes of the applied trigger(s) for a proper interpretation. This review acts as a guide for researchers, advocating for stringent TS model standards and enhancing translational validity.
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Affiliation(s)
- Ermir Zulfaj
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
| | - AmirAli Nejat
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
| | - Abdulhussain Haamid
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Ahmed Elmahdy
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
| | - Aaron Espinosa
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
| | - Björn Redfors
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
- Core Facilities - Experimental Biomedicine, Sahlgrenska Academy, Gothenburg, Sweden
| | - Elmir Omerovic
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
- Core Facilities - Experimental Biomedicine, Sahlgrenska Academy, Gothenburg, Sweden
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Wu T, Wu Y, Li ZL, Yang DH, Chen AL, Dai CG, Zhu Q. Intra-arterial microguidewire electrocoagulation to treat intracranial vascular diseases. Interv Neuroradiol 2024:15910199231217769. [PMID: 38192118 DOI: 10.1177/15910199231217769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024] Open
Abstract
OBJECTIVE To investigate the therapeutic effect of intra-arterial microguidewire electrocoagulation on intracranial vascular diseases. METHODS Data from 10 patients with cerebral aneurysms between May 2018 and September 2022 were analysed. Patients were treated with endovascular coil embolisation and microguidewire electrocoagulation. XperCT scans were conducted to identify new intracranial haemorrhage, infarction and hydrocephalus. Follow-up examinations were conducted 1, 3, 6 and 12 months after discharge. RESULTS After the patients received electrocoagulation for different durations, Raymond Grade 1 embolisation was achieved in all 10 patients. No complications, such as haemorrhage, infarction or hydrocephalus, were found during or after surgery. Ten patients were followed up for 6-12 months, and none had any symptoms or new neurological dysfunction 1 month after their operation. Among them, nine were followed up for 12 months, and digital subtraction angiography showed no recurrence of aneurysms or occlusion of parent arteries. CONCLUSION Intra-arterial microguidewire electrocoagulation can be used as a supplementary treatment for cerebral aneurysms. In cases of incomplete lesion embolisation and cases where tamponade treatment cannot continue, immediate thrombosis may occur. Thus, intra-arterial microguidewire electrocoagulation can help achieve patients' treatment goals.
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Affiliation(s)
- Tao Wu
- Department of Neurosurgery, Hospital of Chengdu University of TCM, Chengdu, China
| | - Yao Wu
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhao-Liang Li
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - De-Hong Yang
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Ai-Lin Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Chun-Gang Dai
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qing Zhu
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
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Pantel T, Neulen A, Mader MMD, Kurz E, Piffko A, Fassl V, Westphal M, Gempt J, Ringel F, Czorlich P. Impact of pre-hospital handling and initial time to cranial computed tomography on outcome in aneurysmal subarachnoid hemorrhage patients with out-of-hospital sudden cardiac arrest-a retrospective bi-centric study. Front Cardiovasc Med 2023; 10:1209939. [PMID: 37671140 PMCID: PMC10475531 DOI: 10.3389/fcvm.2023.1209939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/24/2023] [Indexed: 09/07/2023] Open
Abstract
Background Aneurysmal subarachnoid hemorrhage (SAH) presents occasionally with cardiac arrest (CA). The impact of pre-hospital and emergency room (ER) treatment on outcome remains unclear. Therefore, we investigated the impact of pre-hospital treatment, focusing on lay cardiopulmonary resuscitation (CPR), and ER handling on the outcome of SAH patients with out-of-hospital CA (OHCA). Methods In this bi-centric retrospective analysis, we reviewed SAH databases for OHCA and CPR from January 2011 to June 2021. Patients were analyzed for general clinical and epidemiological parameters. CPR data were obtained from ambulance reports and information on ER handling from the medical records. Data were correlated with patient survival at hospital discharge as a predefined outcome parameter. Results Of 1,120 patients with SAH, 45 (4.0%) were identified with OHCA and CPR, 38 of whom provided all required information and were included in this study. Time to resuscitation was significantly shorter with lay resuscitation (5.3 ± 5.2 min vs. 0.3 ± 1.2 min, p = 0.003). Nineteen patients were not initially scheduled for cranial computed tomography (CCT), resulting in a significantly longer time interval to first CCT (mean ± SD: 154 ± 217 min vs. 40 ± 23 min; p < 0.001). Overall survival to discharge was 31.6%. Pre-hospital lay CPR was not associated with higher survival (p = 0.632). However, we observed a shorter time to first CCT in surviving patients (p = 0.065). Conclusions OHCA in SAH patients is not uncommon. Besides high-quality CPR, time to diagnosis of SAH appears to play an important role. We therefore recommend considering CCT diagnostics as part of the diagnostic algorithm in patients with OHCA.
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Affiliation(s)
- Tobias Pantel
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Axel Neulen
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | | | - Elena Kurz
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Andras Piffko
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Verena Fassl
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Manfred Westphal
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Gempt
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Florian Ringel
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Patrick Czorlich
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Meyer S, Hummel R, Neulen A, Hirnet T, Thal SC. Influence of traumatic brain injury on ipsilateral and contralateral cortical perfusion in mice. Neurosci Lett 2023; 795:137047. [PMID: 36603737 DOI: 10.1016/j.neulet.2023.137047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/28/2022] [Accepted: 01/01/2023] [Indexed: 01/04/2023]
Abstract
Traumatic brain injury (TBI) is one of the most important causes of death in young adults. After brain injury cortical perfusion is impaired by cortical spreading depression, cerebral microvasospasm or microvascular thrombosis and contributes to secondary expansion of lesion into surrounding healthy brain tissue. The present study was designed to determine the regional cortical perfusion pattern after experimental TBI induced by controlled cortical impact (CCI) in male C57/BL6N mice. We performed a longitudinal time series analysis by Laser speckle contrast imaging (LSCI). Measurements were carried out before, immediately and 24 h after trauma. Immediately after CCI cortical perfusion in the lesion core dropped to 10 % of before injury (baseline; %BL) and to 21-24 %BL in the cortical area surrounding the core. Interestingly, cortical perfusion was also significantly reduced in the contralateral non-injured hemisphere (41-58 %BL) matching the corresponding brain region of the injured hemisphere. 24 h after CCI perfusion of the contralateral hemisphere returned to baseline level in the area corresponding to the lesion core, whereas the lateral area of the parietal cortex was hyperperfused (125 %BL). The lesion core region itself remained severely hypoperfused (18 to 26 %BL) during the observation period. TBI causes a maldistribution of both ipsi- and contralateral cerebral perfusion immediately after trauma, which persist for at least 24 h. Higher perfusion levels in the lesion core 24 h after trauma were associated with increased tissue damage, which supports the role of reperfusion injury for secondary brain damage after TBI.
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Affiliation(s)
- Simon Meyer
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131 Mainz, Germany.
| | - Regina Hummel
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131 Mainz, Germany.
| | - Axel Neulen
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131 Mainz, Germany.
| | - Tobias Hirnet
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131 Mainz, Germany.
| | - Serge C Thal
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131 Mainz, Germany; Department of Anesthesiology, HELIOS University Hospital Wuppertal, University Witten/Herdecke, Heusnerstraße 40, 42283 Wuppertal, Germany.
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Hemorrhagic Cerebral Insults and Secondary Takotsubo Syndrome: Findings in a Novel In Vitro Model Using Human Blood Samples. Int J Mol Sci 2022; 23:ijms231911557. [PMID: 36232860 PMCID: PMC9569517 DOI: 10.3390/ijms231911557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Intracranial hemorrhage results in devastating forms of cerebral damage. Frequently, these results also present with cardiac dysfunction ranging from ECG changes to Takotsubo syndrome (TTS). This suggests that intracranial bleeding due to subarachnoid hemorrhage (SAH) disrupts the neuro-cardiac axis leading to neurogenic stress cardiomyopathy (NSC) of different degrees. Following this notion, SAH and secondary TTS could be directly linked, thus contributing to poor outcomes. We set out to test if blood circulation is the driver of the brain-heart axis by investigating serum samples of TTS patients. We present a novel in vitro model combining SAH and secondary TTS to mimic the effects of blood or serum, respectively, on blood-brain barrier (BBB) integrity using in vitro monolayers of an established murine model. We consistently demonstrated decreased monolayer integrity and confirmed reduced Claudin-5 and Occludin levels by RT-qPCR and Western blot and morphological reorganization of actin filaments in endothelial cells. Both tight junction proteins show a time-dependent reduction. Our findings highlight a faster and more prominent disintegration of BBB in the presence of TTS and support the importance of the bloodstream as a causal link between intracerebral bleeding and cardiac dysfunction. This may represent potential targets for future therapeutic inventions in SAH and TTS.
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Darkwah Oppong M, Steinwasser L, Rieß C, Wrede KH, Dinger TF, Ahmadipour Y, Dammann P, Rauschenbach L, Gümüs M, Deuschl C, Sure U, Jabbarli R. Blood pressure and outcome after aneurysmal subarachnoid hemorrhage. Sci Rep 2022; 12:8006. [PMID: 35568704 PMCID: PMC9107458 DOI: 10.1038/s41598-022-11903-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/28/2022] [Indexed: 11/09/2022] Open
Abstract
Blood pressure management is crucial in the treatment of patients with aneurysmal subarachnoid hemorrhage (aSAH). Possible association between the blood pressure increase and the risk of delayed cerebral ischemia (DCI) and different systemic complications after aSAH is still a matter of debate. This study aims to elucidate the influence of blood pressure levels on the outcome of aSAH. All consecutive aSAH patients (n = 690) treated between 01/2003 and 06/2016 were included. The mean value of the mean arterial pressure (MAP) during 14 days after ictus was calculated for each individual. According to the institutional standards of vasospasm management, the mean 14 days MAP ≥ 95 mmHg was referred as increased (IMAP) and the patients with and without vasospasm were analyzed separately. Study endpoints were the occurrence of DCI on computed tomography scans, development of cardiac and nephrological complications, and poor outcome 6 months after aSAH (mRS > 2). Associations were tested in univariable/multivariable binary logistic regression analysis. IMAP was documented in 474 (68.7%) cases and was more common in individuals with poor neurological conditions at admission (p < 0.001), severe amount of intracranial blood (p = 0.001) and premorbid hypertension (p < 0.001). IMAP was independently associated with the occurrence of DCI (p = 0.014; aOR = 2.97; 95% CI 1.25–7.09) and poor functional outcome (p = 0.020; aOR = 3.14; 95% CI 1.20–8.22) in patients with vasospasm, but not in counterparts without vasospasm (p = 0.113/p = 0.086). IMAP had no influence on cardiac or nephrological complications. In aSAH individuals with cerebral vasospasm, sustained increase of blood pressure exceeding the therapeutic targets is strongly associated with the risk of DCI and poor outcome. Therefore, such an intrinsic increase of blood pressure might reflect the autoregulatory mechanisms against the impending cerebral ischemia in patients with cerebral vasospasm. Trial registration number: German clinical trial registry (DRKS, Unique identifier: DRKS00008749, 06/09/2015).
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Affiliation(s)
- Marvin Darkwah Oppong
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany.
| | - Lisa Steinwasser
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Christoph Rieß
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Karsten H Wrede
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Thiemo F Dinger
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Yahya Ahmadipour
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Philipp Dammann
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Laurèl Rauschenbach
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Meltem Gümüs
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Cornelius Deuschl
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
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Wang R, Zhang J, Shan B, He M, Xu J. XGBoost Machine Learning Algorithm for Prediction of Outcome in Aneurysmal Subarachnoid Hemorrhage. Neuropsychiatr Dis Treat 2022; 18:659-667. [PMID: 35378822 PMCID: PMC8976557 DOI: 10.2147/ndt.s349956] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/09/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Patients suffered aneurysmal subarachnoid hemorrhage (aSAH) usually develop poor survival and functional outcome. Evaluating aSAH patients at high risk of poor outcome is necessary for clinicians to make suitable therapeutical strategy. This study is conducted to develop prognostic model using XGBoost (extreme gradient boosting) algorithm in aSAH. METHODS A total of 351 aSAH patients admitted to West China hospital were identified. Patients were divided into training set and test set with ratio of 7:3 to testify the predictive value of XGBoost based prognostic model. Additionally, logistic regression model was also constructed and compared with XGBoost based model. Area under the receiver operating characteristic curve (AUC), sensitivity and specificity were calculated to evaluate the value of XGBoost and logistic regression. RESULTS There were 74 (21.1%) non-survivors and 148 (42.1%) patients with unfavorable functional outcome. Non-survivors had older age (p=0.025), lower Glasgow coma scale (GCS) (p<0.001), higher World Federation of Neurosurgical Societies WFNS score (p<0.001), mFisher score (p<0.001). The incidence of intraventricular hemorrhage (IVH) (p=0.025) and delayed cerebral ischemia (DCI) (p<0.001) was higher in non-survivors than survivors. The AUC of XGBoost model for predicting mortality and unfavorable functional outcome were 0.950 and 0.958, which were higher than 0.767 and 0.829 of logistic regression model. CONCLUSION XGBoost based model is more precise than logistic regression model in predicting outcome of aSAH patients. Using XGBoost prognostic model is helpful for clinicians to identify high-risk aSAH patients and therefore strengthen medical care.
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Affiliation(s)
- Ruoran Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Jing Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Baoyin Shan
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Min He
- Department of Critical care medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Jianguo Xu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People's Republic of China
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