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Robbe MMQ, Pinckaers FME, Olthuis SGH, Bos MJ, van Oostenbrugge RJ, van Zwam WH, Staals J, Postma AA. Procedural Blood Pressure and Intracranial Hemorrhage on Dual-Energy Computed Tomography After Endovascular Stroke Treatment. Cardiovasc Intervent Radiol 2024; 47:483-491. [PMID: 38062172 DOI: 10.1007/s00270-023-03619-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/06/2023] [Indexed: 04/07/2024]
Abstract
PURPOSE Optimal systolic blood pressure (SBP) management during endovascular treatment (EVT) for acute ischemic stroke remains a topic of debate. Though BP is associated with worse functional outcome, the relationship between BP and post-procedural intracranial hemorrhage (ICH) is less well-known. We aimed to investigate the association between BP during EVT and post-procedural ICH on dual-energy CT (DECT). METHODS We included all patients who underwent EVT for an anterior circulation large vessel occlusion between 2010 and 2019, and received DECT < 3 h post-EVT. All BP measurements during the EVT procedure were used to calculate mean arterial pressure (MAPmean), mean SBP (SBPmean), and SBPmax-min (highest minus lowest). ICH was assessed using virtual post-procedural unenhanced DECT reconstructions and classified as intraparenchymal or extraparenchymal. Symptomatic ICH was scored according to the Heidelberg criteria. The association between different BP parameters and ICH was assessed using multivariable logistic regression. RESULTS We included 478 patients. Seventy-six patients (16%) demonstrated ICH on DECT, of which 26 (34%) were intraparenchymal. Symptomatic intraparenchymal and extraparenchymal ICH occurred in 10 (38%) and 4 (8%) patients. SBPmax, SBPmean, and MAPmean were associated with intraparenchymal ICH with an adjusted odds ratio of 1.19 (95%CI, 1.02-1.39), 1.22 (95%CI, 1.03-1.46), and 1.40 (95%CI, 1.09-1.81) per 10 mmHg, while BP was not significantly associated with extraparenchymal ICH. BP did not differ between asymptomatic and symptomatic ICH. CONCLUSION Procedural BP is associated with intraparenchymal ICH on post-EVT DECT but not with extraparenchymal ICH. Future studies should evaluate whether individual procedural BP management reduces post-EVT ICH and improves clinical outcome.
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Affiliation(s)
- M M Q Robbe
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, P. Debeyelaan 25, 6229HX, Maastricht, The Netherlands.
- School for Cardiovascular Diseases (CARIM), Maastricht University, Maastricht, The Netherlands.
| | - F M E Pinckaers
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, P. Debeyelaan 25, 6229HX, Maastricht, The Netherlands
- School for Cardiovascular Diseases (CARIM), Maastricht University, Maastricht, The Netherlands
| | - S G H Olthuis
- School for Cardiovascular Diseases (CARIM), Maastricht University, Maastricht, The Netherlands
- Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - M J Bos
- Departments of Anesthesiology and Pain Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - R J van Oostenbrugge
- School for Cardiovascular Diseases (CARIM), Maastricht University, Maastricht, The Netherlands
- Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - W H van Zwam
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, P. Debeyelaan 25, 6229HX, Maastricht, The Netherlands
- School for Cardiovascular Diseases (CARIM), Maastricht University, Maastricht, The Netherlands
| | - J Staals
- School for Cardiovascular Diseases (CARIM), Maastricht University, Maastricht, The Netherlands
- Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - A A Postma
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, P. Debeyelaan 25, 6229HX, Maastricht, The Netherlands
- School for Mental Health and Sciences (MHENS), Maastricht University, Maastricht, The Netherlands
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Byrappa V, Manohara N, John S, Lobo FA, Lamperti M. Factors influencing the need for emergent conversion to general anesthesia during mechanical thrombectomy in acute anterior circulation stroke - A retrospective observational study. J Clin Neurosci 2023; 116:20-26. [PMID: 37597330 DOI: 10.1016/j.jocn.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/13/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023]
Abstract
BACKGROUND Endovascular mechanical thrombectomy (EMT) for acute ischemic stroke can be conducted under conscious sedation (CS) or general anesthesia (GA). Emergency conversion from CS to GA during the procedure can occur, but its predictors and impact on clinical outcomes are not fully understood. METHODS A single centre retrospective analysis was conducted on 226 patients who underwent EMT for anterior circulation stroke. Two groups were identified: patients who completed the procedure under CS and those requiring emergency conversion to GA. The predictors of emergency conversion to GA and its impact on clinical outcomes were analyzed. RESULTS Forty-five patients (19.9%) required conversion to GA. Atrial fibrillation (OR 2.38; CI 1.09-5.22; p = 0.03) and prolonged duration of procedure (OR 1.02; CI 1.01-1.04; p < 0.001) were identified as the independent predictors of emergency conversion to GA. CONCLUSION Patients with atrial fibrillation and prolonged duration of procedure especially when utilizing combined aspiration-stent retriever or angioplasty/stenting techniques, had a higher likelihood of requiring emergency conversion to general anesthesia (GA).
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Affiliation(s)
- Vinay Byrappa
- Anesthesiology Institute, Cleveland Clinic Abu Dhabi, UAE.
| | - Nitin Manohara
- Anesthesiology Institute, Cleveland Clinic Abu Dhabi, UAE
| | - Seby John
- Department of Neurology and Neurointerventional Surgery, Neurological Institute, Cleveland Clinic Abu Dhabi, UAE
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De Georgia M, Bowen T, Duncan KR, Chebl AB. Blood pressure management in ischemic stroke patients undergoing mechanical thrombectomy. Neurol Res Pract 2023; 5:12. [PMID: 36991520 PMCID: PMC10061853 DOI: 10.1186/s42466-023-00238-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
The relationship between presenting blood pressure in acute ischemic stroke patients and outcome is complex. Several studies have demonstrated a U-shaped curve with worse outcomes when blood pressure is high or low. The American Heart Association/American Stroke Association guidelines recommend values of blood pressure < 185/110 mmHg in patients treated with intravenous t-PA and "permissive hypertension" up to 220/120 mmHg in those not treated with intravenous t-PA. The optimal blood pressure target is less clear in patients undergoing mechanical thrombectomy. Before thrombectomy, the guidelines recommend a blood pressure < 185/110 mmHg though patients with even lower systolic blood pressures may have better outcomes. During and after thrombectomy, the guidelines recommend a blood pressure < 180/105 mmHg. However, several studies have suggested that during thrombectomy the primary goal should be to prevent significant low blood pressure (e.g., target systolic blood pressure > 140 mmHg or MAP > 70 mmHg). After thrombectomy, the primary goal should be to prevent high blood pressure (e.g., target systolic blood pressure < 160 mmHg or MAP < 90 mmHg). To make more specific recommendations, large, randomized-control studies are needed that address factors such as the baseline blood pressure, timing and degree of revascularization, status of collaterals, and estimated risk of reperfusion injury.
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Affiliation(s)
- Michael De Georgia
- Department of Neurology, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
| | - Theodore Bowen
- Department of Neurology, MetroHealth Medical Center, Cleveland, OH, USA
| | - K Rose Duncan
- Department of Neurology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Alex Bou Chebl
- Department of Neurology, Henry Ford Medical Center, Detroit, MI, USA
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Zhang X, Cui T, Zhu Q, Wang C, Wang A, Yang Y, Li S, Hu F, Wu B. Association of Blood Pressure Within 6 h After Endovascular Thrombectomy and Functional Outcomes in Ischemic Stroke Patients With Successful Recanalization. Front Neurol 2022; 13:860124. [PMID: 35493826 PMCID: PMC9046679 DOI: 10.3389/fneur.2022.860124] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/02/2022] [Indexed: 01/01/2023] Open
Abstract
Background and Purpose Blood pressure in the days following endovascular thrombectomy (EVT) can influence functional outcomes of patients who have suffered an acute ischemic stroke, but whether the same is true of blood pressure during the first few hours after EVT is unclear. Methods Several blood pressure parameters were retrospectively analyzed in acute ischemic stroke patients who underwent EVT at West China Hospital from March 2016 to December 2019. Baseline blood pressure, speed of blood pressure reduction, postoperative blood pressure, degree of blood pressure reduction, and quality of blood pressure management were evaluated during the first 24 h after EVT. We explored whether these parameters during different time windows correlated significantly with patients' modified Rankin Scale (mRS) score at 90 days. Results Analysis of 163 patients showed that poor functional outcome (mRS scores 3–6) correlated significantly with higher postoperative blood pressure and worse blood pressure management during the first 6 h after EVT. Postoperative systolic blood pressure at 37 min after EVT was significantly higher in patients with poor outcome (141 mmHg) than in those with good outcome (mRS scores 0–2; 122 mmHg, p = 0.006), and systolic pressure >136 mmHg at this time point was associated with a significantly higher risk of poor outcome, before and after adjusting for other risk factors (adjusted OR 0.395, 95% CI 0.20–0.79). Conclusions Among acute ischemic patients who successfully undergo recanalization, adequate blood pressure management during the first 30–40 min after EVT may be important for ensuring good 90-day functional outcomes.
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Affiliation(s)
- Xuening Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Cui
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Qiange Zhu
- Second Department of Neurology, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Changyi Wang
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, China
| | - Anmo Wang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan Yang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Shucheng Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Fayun Hu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Fayun Hu
| | - Bo Wu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
- Bo Wu
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Kim BJ, Singh N, Menon BK. Hemodynamics of Leptomeningeal Collaterals after Large Vessel Occlusion and Blood Pressure Management with Endovascular Treatment. J Stroke 2021; 23:343-357. [PMID: 34649379 PMCID: PMC8521259 DOI: 10.5853/jos.2021.02446] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/03/2021] [Accepted: 09/09/2021] [Indexed: 12/14/2022] Open
Abstract
Endovascular therapy (EVT) is an effective treatment for ischemic stroke due to large vessel occlusion (LVO). Unlike intravenous thrombolysis, EVT enables visualization of the restoration of blood flow, also known as successful reperfusion in real time. However, until successful reperfusion is achieved, the survival of the ischemic brain is mainly dependent on blood flow from the leptomeningeal collaterals (LMC). It plays a critical role in maintaining tissue perfusion after LVO via pre-existing channels between the arborizing pial small arteries or arterioles overlying the cerebral hemispheres. In the ischemic territory where the physiologic cerebral autoregulation is impaired and the pial arteries are maximally dilated within their capacity, the direction and amount of LMC perfusion rely on the systemic perfusion, which can be estimated by measuring blood pressure (BP). After the EVT procedure, treatment focuses on mitigating the risk of hemorrhagic transformation, potentially via BP reduction. Thus, BP management may be a key component of acute care for patients with LVO stroke. However, the guidelines on BP management during and after EVT are limited, mostly due to the scarcity of high-level evidence on this issue. In this review, we aim to summarize the anatomical and physiological characteristics of LMC to maintain cerebral perfusion after acute LVO, along with a landscape summary of the literature on BP management in endovascular treatment. The objective of this review is to describe the mechanistic association between systemic BP and collateral perfusion after LVO and thus provide clinical and research perspectives on this topic.
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Affiliation(s)
- Beom Joon Kim
- Department of Neurology and Cerebrovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nishita Singh
- Department of Clinical Neurosciences, Foothills Medical Center, University of Calgary, Calgary, AB, Canada
| | - Bijoy K. Menon
- Department of Clinical Neurosciences, Foothills Medical Center, University of Calgary, Calgary, AB, Canada
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