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Xu D, Qi P, Liu P, Yang H, Ye G, Shan D, Lei S, Yang G, Ding J, Liang H, Qi H, Wang D, Lu J. Machine learning models reveal the critical role of nighttime systolic blood pressure in predicting functional outcome for acute ischemic stroke after endovascular thrombectomy. Front Neurol 2024; 15:1405668. [PMID: 38784914 PMCID: PMC11112097 DOI: 10.3389/fneur.2024.1405668] [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: 03/23/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
Background Blood pressure (BP) is a key factor for the clinical outcomes of acute ischemic stroke (AIS) receiving endovascular thrombectomy (EVT). However, the effect of the circadian pattern of BP on functional outcome is unclear. Methods This multicenter, retrospective, observational study was conducted from 2016 to 2023 at three hospitals in China (ChiCTR2300077202). A total of 407 patients who underwent endovascular thrombectomy (EVT) and continuous 24-h BP monitoring were included. Two hundred forty-one cases from Beijing Hospital were allocated to the development group, while 166 cases from Peking University Shenzhen Hospital and Hainan General Hospital were used for external validation. Postoperative systolic BP (SBP) included daytime SBP, nighttime SBP, and 24-h average SBP. Least absolute shrinkage and selection operator (LASSO), support vector machine-recursive feature elimination (SVM-RFE), Boruta were used to screen for potential features associated with functional dependence defined as 3-month modified Rankin scale (mRS) score ≥ 3. Nine algorithms were applied for model construction and evaluated using area under the receiver operating characteristic curve (AUC), sensitivity, specificity, and accuracy. Results Three hundred twenty-eight of 407 (80.6%) patients achieved successful recanalization and 182 patients (44.7%) were functional independent. NIHSS at onset, modified cerebral infarction thrombolysis grade, atrial fibrillation, coronary atherosclerotic heart disease, hypertension were identified as prognostic factors by the intersection of three algorithms to construct the baseline model. Compared to daytime SBP and 24-h SBP models, the AUC of baseline + nighttime SBP showed the highest AUC in all algorithms. The XGboost model performed the best among all the algorithms. ROC results showed an AUC of 0.841 in the development set and an AUC of 0.752 in the validation set for the baseline plus nighttime SBP model, with a brier score of 0.198. Conclusion This study firstly explored the association between circadian BP patterns with functional outcome for AIS. Nighttime SBP may provide more clinical information regarding the prognosis of patients with AIS after EVT.
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Affiliation(s)
- Dingkang Xu
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Peng Qi
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Peng Liu
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Hongchun Yang
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Gengfan Ye
- Department of Neurosurgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Dezhi Shan
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Shixiong Lei
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Guozheng Yang
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Junqing Ding
- Neurology Department, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hui Liang
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Hainan Province Clinical, Medical Center and Hainan Academician Innovation Platform, Haikou, China
| | - Hui Qi
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Daming Wang
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Jun Lu
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
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Bath PM, Song L, Silva GS, Mistry E, Petersen N, Tsivgoulis G, Mazighi M, Bang OY, Sandset EC. Blood Pressure Management for Ischemic Stroke in the First 24 Hours. Stroke 2022; 53:1074-1084. [PMID: 35291822 DOI: 10.1161/strokeaha.121.036143] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
High blood pressure (BP) is common after ischemic stroke and associated with a poor functional outcome and increased mortality. The conundrum then arises on whether to lower BP to improve outcome or whether this will worsen cerebral perfusion due to aberrant cerebral autoregulation. A number of large trials of BP lowering have failed to change outcome whether treatment was started prehospital in the community or hospital. Hence, nuances on how to manage high BP are likely, including whether different interventions are needed for different causes, the type and timing of the drug, how quickly BP is lowered, and the collateral effects of the drug, including on cerebral perfusion and platelets. Specific scenarios are also important, including when to lower BP before, during, and after intravenous thrombolysis and endovascular therapy/thrombectomy, when it may be necessary to raise BP, and when antihypertensive drugs taken before stroke should be restarted. This narrative review addresses these and other questions. Although further large trials are ongoing, it is increasingly likely that there is no simple answer. Different subgroups of patients may need to have their BP lowered (eg, before or after thrombolysis), left alone, or elevated.
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Affiliation(s)
- Philip M Bath
- Stroke Trials Unit, Mental Health and Clinical Neuroscience, University of Nottingham, United Kingdom (P.M.B.).,Stroke, Nottingham University Hospitals NHS Trust, United Kingdom (P.M.B.)
| | - Lili Song
- The George Institute China at Peking University Health Science Center, Beijing (L.S.).,Faculty of Medicine, George Institute for Global Health, University of New South Wales, Sydney, Australia (L.S.)
| | - Gisele S Silva
- Neurology, Federal University of São Paulo (UNIFESP) and Hospital Israelita Albert Einstein, Brazil (G.S.S.)
| | - Eva Mistry
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati, OH (E.M.)
| | - Nils Petersen
- Department of Neurology, Divisions of Vascular Neurology and Neurocritical Care, Yale School of Medicine, New Haven (N.P.)
| | - Georgios Tsivgoulis
- Second Department of Neurology, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, Greece (G.T.)
| | - Mikael Mazighi
- Department of Neurology, Lariboisiere Hospital, and Interventional Neuroradiology, Fondation Rothschild Hospital, University of Paris, INSERM 1148, FHU Neurovasc, France (M.M.)
| | - Oh Young Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea (O.Y.B.)
| | - Else Charlotte Sandset
- Stroke Unit, Department of Neurology, Oslo University Hospital, Norway (E.C.S.).,The Norwegian Air Ambulance Foundation, Oslo (E.C.S.)
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