1.Risk factors for radial artery occlusion after neurointervention for unruptured intracranial aneurysm via transradial access

经桡动脉入路神经介入治疗未破裂型颅内动脉瘤后的危险因素

Neurointervention via transradial access (TRA) is less invasive than via transfemoral access. However, radial artery occlusion (RAO) may occur with TRA. The purpose of this study was to explore risk factors for RAO after coil embolization of unruptured intracranial aneurysms (UIAs) via TRA. Radial artery size and RAS represent reliable parameters for predicting RAO 1 year after coil embolization for UIA via TRA. Prophylaxis against RAS and limiting neurointervention via TRA to patients with radial artery larger than 2.5 mm in diameter may reduce the risk of postoperative RAO.

经桡动脉入路(TRA)进行神经干预比经股动脉入路侵入性小。然而，TRA可能会发生桡动脉闭塞(RAO)。本研究的目的是探讨未破裂的颅内动脉瘤(UIA)经TRA弹簧圈栓塞术后发生RAO的危险因素。动脉直径和RAS是预测经TRA行UIA栓塞术后1年RAO的可靠指标。对于直径大于2.5 mm的患者，预防RAS并限制通过TRA进行神经干预可能会降低术后RAO的风险。

REF: Fuga M, Tanaka T, Tachi R, et al. Risk factors for radial artery occlusion after neurointervention for unruptured intracranial aneurysm via transradial access [published online ahead of print, 2023 Jul 27]. Interv Neuroradiol. 2023;15910199231189927. doi:10.1177/15910199231189927 

PMID: 37499188

2.Estimating the impact of balloon guide catheter with mechanical thrombectomy for acute ischemic stroke: A U.S. cost analysis

评估球囊导尿管与机械取栓治疗急性缺血性卒中的影响：一项美国成本分析

Balloon guide catheters (BGCs) can be used adjunctively during mechanical thrombectomy (MT) for acute ischemic stroke (AIS). Decision tree models were used to estimate the economic value of BGC use in MT through its impact on functional outcomes. Evaluating the potential economic impact associated with adjunctive BGC use is an important consideration for resource allocation. Mechanical thrombectomy with adjunctive BGC use may reduce short-term and long-term patient costs due to improved functional outcomes when compared to MT treatment alone for AIS.

球囊导引导管(BGC)可在急性缺血性卒中(AIS)的机械血栓摘除术(MT)中辅助使用。决策树模型被用来通过其对功能结果的影响来评估在MT中使用BGC的经济价值。评估与附加使用BGC相关的潜在经济影响是资源分配的重要考虑因素。与单独使用MT治疗AIS相比，机械血栓摘除联合使用BGC可以降低患者的短期和长期成本，因为功能结果有所改善。

REF: Brinjikji W, Kottenmeier E, Kabiri M, Khaled A, Pederson JM, Al-Bayati AR. Estimating the impact of balloon guide catheter with mechanical thrombectomy for acute ischemic stroke: A U.S. cost analysis [published online ahead of print, 2023 Jul 27]. Interv Neuroradiol. 2023;15910199231191034. doi:10.1177/15910199231191034 

PMID: 37499196

3.Intracranial stenting for large vessel intracranial atherosclerotic disease: Retrospective study

大血管颅内动脉粥样硬化性疾病的颅内支架置入术：回顾性研究

Intracranial atherosclerotic disease (ICAD) is a common cause for stroke and can be defined as symptomatic (stroke) or asymptomatic. Current guidelines recommend against intracranial stenting (ICS) for patients with ICAD; treatment of patients who failed the best medical therapy is still debatable. We introduce a preliminary retrospective analysis of our tertiary stroke center during 2018-2022 of patients that were treated with ICS either in acute phase or elective (eICS). The evolution of new devices for ICS and the accumulating interventional experience might open a new era. As no other effective alternative treatment options exist for preventing recurrent stroke, stenting is still common practice in many tertiary centers either urgently or as elective procedure for refractory cases.

颅内动脉粥样硬化性疾病(ICAD)是中风的常见原因，可定义为有症状(中风)或无症状。目前的指南建议不要对ICAD患者进行颅内支架(ICS)治疗；对未能获得最佳药物治疗的患者的治疗仍然存在争议。我们介绍了我们的三级卒中中心在2018-2022年期间对急性期和择期(EICS)接受ICS治疗的患者的初步回顾分析。ICS新设备的发展和介入经验的积累可能会开启一个新的时代。由于没有其他有效的替代治疗方案来预防中风复发，支架置入术仍然是许多三级中心的常见做法，要么是紧急的，要么是难治性病例的选择性手术。

REF: Naftali J, Findler M, Perlow A, et al. Intracranial stenting for large vessel intracranial atherosclerotic disease: Retrospective study [published online ahead of print, 2023 Jul 27]. Interv Neuroradiol. 2023;15910199231190685. doi:10.1177/15910199231190685 

PMID: 37499212

4.Surpass embolization of intracranial aneurysms: Perspective from a 2-year longitudinal follow-up study across high volume comprehensive stroke centers

颅内动脉瘤的超栓塞治疗：一项跨越大容量综合性卒中中心的两年纵向随访研究

Surpass Streamline (SS; Stryker©) is an over-the-wire first-generation flow diverter (FD). There is a scarcity of data on real-world outcomes and complications of this FD. A retrospective review of consecutive cases between January 2019 and July 2021 at two high-volume comprehensive stroke centers, involving SS was conducted. Large-scale future registry should focus on national data regarding SS safety, technical challenges, and procedural complications. We present one of the longest follow-ups for SS in literature.

Surpass Streamline(SS；Stryker©)是一种线控第一代流量分流器(FD)。关于这种FD的真实结果和并发症的数据很稀少。对2019年1月至2021年7月在两个大容量综合性卒中中心连续发生的涉及SS的病例进行回顾性分析。未来的大规模登记应侧重于关于SS安全性、技术挑战和程序复杂性的国家数据。我们提出了文献中对SS最长的跟踪调查之一。

REF: Gupta G, Sreenivasan S, Kane I, et al. Surpass embolization of intracranial aneurysms: Perspective from a 2-year longitudinal follow-up study across high volume comprehensive stroke centers [published online ahead of print, 2023 Jul 18]. Interv Neuroradiol. 2023;15910199231188760. doi:10.1177/15910199231188760 

PMID: 37464776

5.Hypoperfusion intensity ratio as a predictor of outcomes after thrombectomy triage: A call for data homogeneity

低灌流强度比作为血栓切除分流术后预后的预测因子：呼吁数据同质性

Collateral blood flow markers have been associated with outcomes after thrombectomy in patients presenting with acute ischemic stroke due to large vessel occlusion (AIS-LVO). Hypoperfusion intensity ratio (HIR), a metric reflecting tissue level collaterals, is one such marker with the potential to delineate patients who do and do not do well after thrombectomy. We determined if HIR correlated with successful reperfusion after thrombectomy. This meta-analysis was considerably limited by heterogeneity. Future meta-analyses on this topic, and other topics in the field of neurointervention would benefit from improved harmonization of study design and data element reporting.

侧支血流标志物与大血管闭塞所致急性缺血性卒中(AIS-LVO)患者血栓切除术后的预后有关。低灌流强度比(HIR)是一种反映组织水平侧支的指标，它是一种潜在的标记物，可以区分血栓切除后表现良好和不好的患者。我们确定HIR是否与血栓摘除后成功再通有关。这种荟萃分析在很大程度上受到异质性的限制。未来关于这一主题和神经干预领域其他主题的荟萃分析将受益于研究设计和数据元素报告的改进协调。

REF: Adusumilli G, Kobeissi H, Ghozy S, et al. Hypoperfusion intensity ratio as a predictor of outcomes after thrombectomy triage: A call for data homogeneity [published online ahead of print, 2023 Jul 18]. Interv Neuroradiol. 2023;15910199231188763. doi:10.1177/15910199231188763 

PMID: 37461822

6.Efficacy and safety of thrombectomy for acute ischaemic stroke in patients with pre-stroke mRS scores of 2–3: Real-world evaluation from an open-label, prospective, multicentre, observational study

卒中前MRS评分为2~3分的急性缺血性卒中患者行血栓摘除术的有效性和安全性：一项开放、前瞻性、多中心、观察性研究的真实世界评价

This study assessed the efficacy and safety of thrombectomy for acute ischaemic stroke in a population with pre-stroke modified Rankin scale (mRS) scores of 2-3 using real-world data. Intravenous t-PA and especially thrombectomy were safe and effective for the population with pre-stroke disabilities, particularly for patients with low NIHSS scores.

这项研究利用真实世界的数据，在卒中前改良Rankin评分(MRS)为2-3的人群中评估了血栓摘除术治疗急性缺血性卒中的有效性和安全性。对于卒中前残障患者，尤其是NIHSS评分较低的患者，静脉注射t-PA尤其是血栓摘除术是安全有效的。

REF: Miyake S, Akimoto T, Nakai Y, et al. Efficacy and safety of thrombectomy for acute ischaemic stroke in patients with pre-stroke mRS scores of 2-3: Real-world evaluation from an open-label, prospective, multicentre, observational study [published online ahead of print, 2023 Jul 18]. Interv Neuroradiol. 2023;15910199231185637. doi:10.1177/15910199231185637 

PMID: 37461387

7.Middle meningeal artery embolization with polyvinyl alcohol particles in a patient with ophthalmic artery origin from middle meningeal artery: Case report and technical note

1例眼动脉起源于脑膜中动脉的患者行脑膜中动脉聚乙烯醇颗粒栓塞术：病例报道和技术说明

This is a case report of an adult with chronic subdural hematoma (cSDH) who underwent endovascular treatment for middle meningeal artery (MMA) embolization. There was a prominent meningo-ophthalmic branch with an absence of an ophthalmic artery from the internal carotid artery. MMA embolization was performed utilizing particles with no complications and the resolution of the cSDH was within 4 months. This case report demonstrates that despite extreme variant anatomy, MMA embolization with particles is feasible, effective, and safe when appropriate techniques are used.

本文报告一例成人慢性硬膜下血肿(CSDH)，接受脑膜中动脉(MMA)栓塞术的血管内治疗。有一个突出的脑膜-眼科分支，从颈内动脉没有眼动脉。MMA颗粒栓塞术无并发症，CSDH在4个月内消退。这一病例报告表明，尽管存在极端的解剖变异，但如果使用适当的技术，MMA颗粒栓塞术是可行、有效和安全的。

REF: Lee YM, Mattay RR, Haddad AF, Rinaldo L, Savastano L. Middle meningeal artery embolization with polyvinyl alcohol particles in a patient with ophthalmic artery origin from middle meningeal artery: Case report and technical note [published online ahead of print, 2023 Jul 17]. Interv Neuroradiol. 2023;15910199231188862. doi:10.1177/15910199231188862 

PMID: 37461320

8.Efficacy and safety of fetal posterior cerebral artery stented coil embolization for fetal posterior cerebral aneurysms

胎儿大脑后动脉支架弹簧圈栓塞术治疗胎儿大脑后动脉瘤的疗效和安全性

Aneurysms at the origin of the fetal posterior cerebral artery (fPCA) often show fPCA bifurcation from the aneurysm dome, impeding complete embolization and dense coil packing. The recanalization rate for fPCA aneurysms is therefore high. This study aimed to evaluate the efficacy and safety of stenting into fPCA for aneurysms with fPCA incorporated into the aneurysm to determine whether stenting can provide effective embolization results and prevent recanalization. Stenting into fPCA for aneurysms with fPCA incorporated into the aneurysm achieved high-density complete embolization without increasing complications, and prevented recanalization. The fPCA stent-assisted coil embolization can offer an alternative treatment for fPCA aneurysms.

位于胎儿大脑后动脉(FPCA)起始部的动脉瘤通常表现为从动脉瘤顶端分叉出来，阻碍了完全的栓塞和致密的弹簧圈填塞。因此，FPCA动脉瘤的再通率很高。本研究的目的是评价支架置入术治疗FPCA动脉瘤的有效性和安全性，以确定支架置入术是否能提供有效的栓塞效果和防止再通。FPCA内植入支架治疗动脉瘤，可在不增加并发症的情况下实现高密度的完全栓塞术，并防止再通。FPCA支架辅助弹簧圈栓塞术为治疗FPCA动脉瘤提供了一种新的治疗方法。

REF: Fuga M, Tanaka T, Tachi R, et al. Efficacy and safety of fetal posterior cerebral artery stented coil embolization for fetal posterior cerebral aneurysms [published online ahead of print, 2023 Jul 17]. Interv Neuroradiol. 2023;15910199231188556. doi:10.1177/15910199231188556 

PMID: 37461290

9.A novel endoleak classification for intracranial aneurysm flow diversion: A retrospective case series

一种新的颅内动脉瘤血流改道的内渗漏分类：一项回顾性病例系列

Although flow diversion (FD) is safe and effective in the treatment of intracranial aneurysms, a subset tends to continue filling on serial angiography. Risk factors for failed flow diversion include old age, large aneurysm size, and overstenting an adjacent end-arterial vessel. The hemodynamic modes of persistent aneurysm filling, or 'endoleaks', after FD are poorly understood. This study aims to characterize the various types of endoleaks following aneurysmal FD. We propose an endoleak classification scheme to describe the hemodynamic modes of failure following FD of intracranial aneurysms. Future studies are needed to evaluate the natural history of aneurysmal filling following FD and retreatment success according to endoleak type.

虽然血流导向(FD)在治疗颅内动脉瘤中是安全和有效的，但在连续血管造影术中，部分动脉瘤往往会继续充盈。分流失败的危险因素包括高龄、较大的动脉瘤大小和邻近动脉末端血管支架过长。FD术后持续性动脉瘤充盈或“内漏”的血流动力学模式尚不清楚。本研究旨在描述动脉瘤性FD后不同类型的内漏的特征。我们提出了一种内渗漏分类方案来描述颅内动脉瘤FD后失败的血流动力学模式。根据内漏类型，还需要进一步的研究来评估FD后动脉瘤充盈的自然历史和再治疗成功。

REF: Kashkoush A, Moore NZ, El-Abtah ME, Achey R, Toth G, Bain M. A novel endoleak classification for intracranial aneurysm flow diversion: A retrospective case series [published online ahead of print, 2023 Jul 17]. Interv Neuroradiol. 2023;15910199231185638. doi:10.1177/15910199231185638 

PMID: 37461293