Superficial Temporal Artery to Middle Cerebral Artery Bypass and Endovascular Parent Artery Occlusion in the Treatment of Giant Intracranial Aneurysms

The authors are reporting on a study drawn from unpublished dissertation done by the corresponding author when he completed his neurosurgical training in Paris, France in 2004, few years before the advent of flow diverters. The study was a retrospective review of giant intracranial aneurysms treated by superficial temporal artery to middle cerebral artery bypass combined with endovascular occlusion of the parent artery. From 1990 to 2003, 29 consecutive cases of giant cerebral aneurysms, not suitable to selective treatment were managed in that way. Twenty-one medical records had enough data to allow objective evaluation. Sixteen female and five male patients bearing 21 giant aneurysms were involved. Their mean age was 46 years. The aneurysm was revealed by mass effect in 13 cases and subarachnoid hemorrhage in one case. On admission 19 patients presented with unruptured aneurysms and two have sustained a subarachnoid hemorrhage. The balloon occlusion test before the bypass operation was not tolerated in 18 patients. The treatment was completed in 19 patients and 17 of them had parent artery occlusion with latex detachable balloons. The only death of the series occurred before the endovascular treatment. The mean follow-up period was 30 months. After completion of the treatment, 16 (84%) patients had no symptom. Aneurysm recanalization or rupture was not observed after the parent artery occlusion. With the combination of superficial temporal artery to middle cerebral artery bypass + endovascular parent artery occlusion, 90% of giant intracranial aneurysms untreatable selectively were permanently excluded with a good outcome in 95%.

Ruptured intracranial aneurysm presenting as cerebral circulation insufficiency:A case report

BACKGROUND Rupture of an intracranial aneurysm is a type of acute stroke that is a serious threat to human health.Misdiagnosis of ruptured intracranial aneurysms is a serious clinical event that may have disastrous consequences in some patients.To date,ruptured intracranial aneurysms have been misdiagnosed as meningitis,tumors,stroke,or trauma,among other conditions.Here,we report what appears to be the first case of a ruptured intracranial aneurysm that presented as cerebral circulation insufficiency.CASE SUMMARY A middle-aged man was admitted to our hospital because of a parasellar lesion identified on a noncontrast computed tomography(CT)image after a mild traffic accident that was caused by a brief loss of consciousness.Notably,he was diagnosed with cerebral circulation insufficiency after two unexplained episodes of a transient loss of consciousness within the past 8 mo.The patient was diagnosed with right internal carotid artery aneurysm based on CT angiography and completely recovered after a craniotomy at our hospital.A few clots and severe adhesions around the aneurysm were observed in the subarachnoid space during the operation,suggesting that the aneurysm had ruptured and may had been misdiagnosed as cerebral circulation insufficiency.CONCLUSION Ruptured intracranial aneurysms may show negative imaging results and present as cerebral circulation insufficiency,which should be recognized as soon as possible to ensure timely management.

Analysis on Emergency Microsurgical Treatment for Cerebral Hernia Caused by Intracranial Anterior Circulation Aneurysm with Intracranial Hematoma

Objective: This study is to discuss CT performances and direct surgical strategy as well as therapeutic effect of patients who have rupture hemorrhage of intracranial anterior circulation aneurysm with complications of intracranial hematoma and cerebral hernia. Methods: CT performances and treatment of 14 patients who have rupture hemorrhage of intracranial anterior circulation aneurysm with complications of intracranial hematoma and cerebral hernia in our hospital from March, 2019 to March, 2021 were reviewed. The relationship between hematoma caused by intracranial anterior circulation aneurysm and position of the aneurysm was analyzed. Besides, surgical processing keys were discussed. Results: For all selected patients, intracranial hemorrhage is proved to be caused by rupture of aneurysm. Among them, there are 2 cases of anterior communicating aneurysms, 3 cases of posterior communicating aneurysms, and 9 cases of middle cerebral aneurysms. According to exploration, we found 1 case of multiple aneurysm, which is the combination of a middle cerebral aneurysm (the responsible aneurysm) and ipsilateral posterior communicating aneurysm. There were two cases of intraoperative rupture. In this study, 3 patients died. According to GOS grading at 3 months after the operation, there were 1 case of V-grade (good recovery), 3 cases of IV-grade (self-maintenance), 5 cases of III-grade (severe disabled), 2 cases of II-grade (persistent vegetative state) and 3 cases of I-grade (died). Conclusions: Emergency microsurgical treatment can lower the death rate of cerebral hernia caused by intracranial anterior circulation aneurysm with intracranial hematoma and recover the neurological functions to the maximum extent.

Giant cavernous aneurysms occluded by aneurysmal thrombosis,calcification,parent artery occlusion:A case report and review of literature

BACKGROUND Patients with giant intracranial aneurysms(GIAs)are at a high risk of rupture,morbidity,and mortality even after surgical or endovascular treatment.We described a case of a spontaneously occluded GIA secondary to gradual growth of the GIA,continuously progressed aneurysmal thrombosis,complete aneurysmal calcification and complete occlusion of the parent artery-the right internal carotid artery(RICA).CASE SUMMARY A 72-year-old female patient complained of sudden pain in her right eye upon admission to our hospital.She had been diagnosed with a GIA[30 mm(axial)×38 mm(coronal)×28 mm(sagittal)]containing an aneurysmal thrombus located in the cavernous sinus segment of RICA diagnosed by magnetic resonance imaging(MRI),enhanced MRI,and magnetic resonance angiography more than 14 years ago.Later,with slow growth of the cavernous carotid GIA,aneurysmal thrombosis progressed continuously,spontaneous occlusion of the RICA,complete aneurysmal calcification,and occlusion of the GIA occurred gradually.She had no history of subarachnoid hemorrhage but missed the chance for endovascular therapy at an early stage.As a result,she was left with severe permanent sequelae from the injuries to the right cranial nerves Ⅱ,Ⅲ,Ⅳ,V1/V2,and Ⅴ.CONCLUSION The risk of rupture of the cavernous carotid GIAs was relatively low and possibly further be reduced by the stasis flow and spontaneous occlusion of the parent artery internal carotid artery(ICA)induced by the mass effect of the cavernous carotid GIAs and the extremely rare aneurysmal calcification.However,nowadays,it is advisable to recommend early endovascular treatment for the cavernous carotid GIAs to prevent injuries to the surrounding intracranial nerves and occlusion of the ICA,mainly caused by the mass effect of the cavernous carotid GIAs.

Spontaneous Disappearance of a Ruptured Intracranial Aneurysm

The spontaneous disappearance of a ruptured intracranial aneurysm is unusual and its mechanism remains incompletely understood. However, several hypotheses are put forward and are mostly found in Virchow’s triad. We report the case of a man who suffered subarachnoid hemorrhage by rupture of a blister aneurysm of the P1 segment of the left posterior cerebral artery. A control arteriography performed one week after the rupture showed a disappearance of the aneurysm and a significant vasospasm of the carrier artery. Angiograms performed at 3 weeks and 3 months confirmed this disappearance of the aneurysm and a return to normal artery size. Clinically the patient was doing well. Therefore his aneurysm was spontaneously declared cured. Several studies are needed to clarify the natural history of spontaneously thrombosed aneurysms and elucidate their occurrence mechanism in order to improve the management of intracranial aneurysmal pathology.

Clinical Analysis of Embryonic Posterior Cerebral Artery

Objective:To understand the clinical characteristics of patients with embryonic posterior cerebral artery and its correlation with abnormal vascular development.Methods:The clinical data of 396 patients with embryonic posterior cerebral artery confirmed by magnetic resonance angiography(MRA)and computed tomography angiography(CTA)were analyzed.Results:Two-hundred patients had clinical manifestations of posterior circulation ischemia,including recurrent dizziness,vertigo,and tinnitus;45 had headaches,97 had limb weakness,and 16 patients had syncope or impaired consciousness.Seventy-six patients with circulatory infarction were admitted to the hospital.There were 251 patients with history of hypertension,74 with diabetes,113 with hyperlipidemia,13 with dominant vertebral artery,10 with intracranial aneurysm,and 19 with absence of A1 segment of the anterior cerebral artery(considering developmental variation).Conclusion:Embryonic posterior cerebral artery develops abnormally during the embryonic period,often accompanied by abnormal vascular access.Due to abnormal hemodynamics,the incidence of posterior circulation ischemia,aneurysm,and infarction increases in such patients.

Endovascular treatment of ruptured lobulated anterior communicating artery aneurysms:A retrospective study of 24 patients

BACKGROUND Lobulated intracranial aneurysm is a special type of aneurysm with at least one additional cyst in the neck or body of the aneurysm.Lobulated intracranial aneurysm is a complex aneurysm with complex morphology and structure and weak tumor wall,which is an independent risk factor for rupture and hemorrhage.Lobular aneurysms located in the anterior communicating artery complex account for 36.9%of all intracranial lobular aneurysms.Due to its special anatomical structure,both craniotomy and endovascular treatment are more difficult.Compared with single-capsule aneurysms,craniotomy for lobular intracranial aneurysms has a higher risk and complication rate.AIM To investigate the efficacy and safety of endovascular treatment for ruptured lobulated anterior communicating artery aneurysm(ACoAA).METHODS Patients with ruptured lobulated ACoAA received endovascular treatment in Sanming First Hospital Affiliated to Fujian Medical University from June 2020 to June 2022 were retrospectively included.Their demographic,clinical and imaging characteristics,endovascular treatment methods and follow-up results were collected.RESULTS A total of 24 patients with ruptured lobulated ACoAA were included,including 9 males(37.5%)and 15 females(62.5%).Their age was 56.2±8.9 years old(range 39-74).The time from rupture to endovascular treatment was 10.9±12.5 h.The maximum diameter of the aneurysms was 5.1±1.0 mm and neck width were 3.0±0.7 mm.Nineteen patients(79.2%)were double-lobed and 5(20.8%)were multilobed.Fisher's grade:Grade 2 in 16 cases(66.7%),grade 3 in 6 cases(25%),and grade 4 in 2 cases(8.3%).Hunt-Hess grade:Grade 0-2 in 5 cases(20.8%),grade 3-5 in 19 cases(79.2%).Glasgow Coma Scale score:9-12 in 14 cases(58.3%),13-15 in 10 cases(41.7%).Immediately postprocedural Raymond-Roy grade:grade 1 in 23 cases(95.8%),grade 2 in 1 case(4.2%).Raymond-Roy grade in imaging follow-up for 2 wk to 3 months:grade 1 in 23 cases(95.8%),grade 2 in 1 case(4.2%).Followup for 2 to 12 months showed that 21 patients(87.5%)had good functional outcomes(modified Rankin Scale score≤2),and there were no deaths.CONCLUSION Endovascular treatment is a safe and effective treatment for ruptured lobulated AcoAA.

Rhino-orbito-cerebral mucormycosis complicated with an ophthalmic artery occlusion followed by subarachnoid hemorrhage

A 70-year-old female with poorly controlled diabetes developed sudden visual loss, ptosis and complete ophthalmoplegia of the right eye. Funduscopic examination showed the pale retina and the cherry red spot in the right eye. Fluorescein angiography and indocyanine green angiography demonstrated the absence of retinal arterial filling and choroidal perfusion in the right eye even 20 minutes after injecting the dye. The patient was diagnosed with right ophthalmic artery occlusion. Computed tomography (CT) showed diffuse mucosal thickening in the right ethmoidal sinus. Based on the clinical findings and endoscopic biopsy result, mucormycosis was confirmed. Amphotericin B (40 mg/day) and ceftriaxone (2 g/day) were intravenously administered. Despite the improvement of the right ethmoidal sinusitis and the right proptosis, the patient deteriorated into a comatose state after 19 days of systemic amphotericin B therapy. Although the previous CT showed no cerebral aneurysm, a repeated CT showed newly developed posterior communicating artery aneurysm and the subarachnoid hemorrhage. Despite the amphotericin B treatment and the improvement of the sinusitis, mucormycosis could cause sudden cerebral aneurysm rupture and subarachnoid hemorrhage resulting in coma.

CEREBRAL ARTERY RECONSTRUCTION IN THE TREATMENT OF LARGE AND GIANT INTRACRANIAL ANEURYSMS

From 1978 to 1988, 14 giant intracranial aneurysms(more than 2.4 cm in diameter) and one large aneurysm (1.5cm in diameter) were treated by extracranial/intracranial(EC/IC) bypass or cerebral artery reconstruction. Of theaneurysms, 10 were located at the intracavernous carotid ar-tery (CCA). One of the 10 anourysms was posttraumatic andlocated at both the carotid-ophthalmic artery segment and thebifurcation of the internal carotid artery (ICA). Three wereseen at the middle cerebral artery (MCA) trunk.Theaneurysms were demonstrated by angiography and CTscanning. They were treated with trapping of the aneurysm andsuperficial temporal artery (STA)/middle cerebral artery(STA-MCA) bypass with/without a graft (6 cases), cervicalICA ligation and STA-MCA bypass with / without a graft (6)aneurysm excision with an end-to-end anastomosis of theMCA and a STA-MCA bypass with a graft (1), proximal

Fatal Outcome after Delayed Pipeline Embolization Device Migration for the Treatment of a Giant Superior Cerebellar Artery Aneurysm: Technical Note for Complication Avoidance

Purpose: Flow diversion is a relatively novel technique to treat some intracranial aneurysms. With new techniques, unusual complications can occur. We described a case of Pipeline Embolization Device (PED) migration, strategy for its recognition, and a technical point to prevent its occurrence. Publication of these rare events is important to make physicians aware of potential complications. Methods: A patient with a previously coiled giant superior cerebellar aneurysm presented with brainstem compression symptoms. Imaging verified progressive aneurysm growth. A decision was made to treat the aneurysm with PED. Results: Development of new neurologic symptoms prompted a computed tomography that showed hydrocephalus. An angiogram also showed recanalization of the aneurysm secondary to upward migration/retraction of the flow diverter. A ventriculo-peritoneal shunt was implemented and planning for placement of a second flow diverter was made. Unfortunately, the patient expired while waiting for the endovacular intervention. Conclusions: PED migration may occur even after correct placement of the device. Early recognition of this complication is essential. When clinical changes occur, it is paramount that this uncommon, but potentially deadly, complication is suspected. Appropriate sizing and deployment technique are important for the long-term stability of the device.

Spontaneous regression of a giant basilar artery aneurysm in a young adult after surgical injury:case report and literature review

A giant basilar artery aneurysm of young woman with endocrine disturbance was misdiagnosed as a large pituitary adenoma and treated surgically via a trans-sphenoidal approach was planned. But the neurosurgery was finally aborted because of massive bleeding during the procedure. One year later,a cerebral angiography confirmed this basilar artery aneurysm was obviously regressed and then endovascular coiling was successfully performed. No neurological complication occurred post-procedure and the endocrine dysfunction symptom was obviously improved.

Risk factors and outcomes of postoperative stroke in surgical treatment for giant intracranial aneurysms

Background:Giant intracranial aneurysms(GIAs)are challenges for surgical treatment.Risk factors of postoperative stroke remain unclear.This study aims to investigate the predictors of postoperative stroke in GIAs and the impact of stroke on outcomes.Methods:We performed a retrospective medical record review of patients with GIAs who received microsurgery at our institution between 2011 and 2018.Multivariate logistic regression analyses were carried out to identify risk factors for postoperative stroke.The clinical and angiographic outcomes were compared between patients with and without stroke.Results:A total of 97 patients were included in this study.Surgical modalities included direct aneurysm neck clipping in 85 patients(87.7%),trapping with the bypass in 8(8.2%),proximal artery ligation in 1(1%),and bypass alone in 3(3.1%).Postoperative stroke was found in 26 patients(26.8%).Independent factors that affect postoperative stroke were recurrent aneurysm(OR,10.982;95%CI,1.976-61.045;P=0.006)and size≥3.5 cm(OR,3.420;95%CI,1.133-10.327;P=0.029).Combined perioperative mortality and morbidity was 26.8%.Follow-up was achieved from 89 patients(91.8%),with a mean follow-up period of 39 months(range 19 to 94 months).Good outcomes were observed in 75 patients(84.3%)and poor outcomes were observed in 14 patients(15.7%).Conclusions:Postoperative stroke was significantly associated with clinical outcome.Favorable outcomes can be achieved in most patients with GIAs after appropriate microsurgical modality.Recurrent aneurysm and size≥3.5 cm are risk factors of postoperative stroke.

Successive development of ischemic malignant strokes in a patient with multiple fusiform aneurysms:A case report

BACKGROUND Intracranial fusiform aneurysms are rare,spindle-shaped,and nonsaccular arterial dilatations that may be caused by dissection.CASE SUMMARY A 48-year-old man complained of wake-up onset of dysarthria and left-sided weakness.Diffusion-weighted magnetic resonance imaging of the brain revealed an infarction in the territories of the right middle and posterior cerebral arteries.Computed tomography angiography showed fusiform aneurysms in the right vertebral artery and bilateral petrous segments of the internal carotid arteries(ICAs).Despite conservative management,malignant ischemic stroke recurred in the contralateral ICA territory within a day of the onset of the index stroke.CONCLUSION We report a rare case of successive malignant strokes in a patient with multiple fusiform aneurysms.Herein,we emphasize that clinicians should consider aggressive treatment for patients with ischemic stroke and multiple fusiform aneurysms.

前交通动脉动脉瘤112例诊治真实世界数据分析:单中心报告

目的对前交通动脉动脉瘤(anterior communicating artery aneurysm,ACoAA)病例资料进行真实世界数据(real world data,RWD)分析,总结救治经验。方法回顾性分析112例ACoAA病例资料。男69例,女43例,年龄30~80岁、平均(45.00±11.05)岁。发生蛛网膜下腔出血就诊110例,未破裂就诊2例。行开颅夹闭66例,血管内介入治疗46例,其中应用支架辅助栓塞5例。统计病人的人口学资料、基础疾病、个人史、家族史、入院状况及影像学资料、动脉瘤解剖学特征、病人预后等资料。结果依据改良Rankin量表(modified Rankin Scale,mRS)评分:良好(mRS 0~2分)82例,残疾(mRS 3~5分)22例,死亡(mRS 6)8例。RWD将预后不良的相关因素,纳入有序多分类Logistic回归分析,显示年龄与饮酒史是ACoAA术后预后的独立危险因素,病人居住地、高血压病史及不同治疗术式(开颅夹闭和栓塞治疗)不是病人预后的独立危险因素。结论ACoAA确诊后接受积极治疗(开颅夹闭或栓塞治疗),病人术后恢复良好率较高。ACoAA不良预后可能与年龄、饮酒等因素相关。

血清白细胞介素1β、半胱胺酸天冬氨酸蛋白水解酶3水平与颅内动脉瘤患者术后发生脑血管痉挛的关系

目的探讨血清白细胞介素1β(IL-1β)、半胱胺酸天冬氨酸蛋白水解酶3(Caspase-3)水平与颅内动脉瘤患者术后发生脑血管痉挛的关系。方法选取2020年1月至2022年1月于北京市平谷区医院及首都医科大学附属北京天坛医院拟行介入栓塞术手术治疗的80例颅内动脉瘤患者,根据术后脑血管痉挛发生情况将其分为发生组(n=33)和未发生组(n=47)。收集所有患者的基线资料,记录所有患者的实验室指标,采用Pearson相关性检验分析血清IL-1β、Caspase-3之间的相关性,采用Logistic回归模型分析颅内动脉瘤患者术后发生脑血管痉挛的影响因素,绘制受试者工作特征曲线(ROC)分析血清IL-1β、Caspase-3对颅内动脉瘤患者术后发生脑血管痉挛的预测价值。结果发生组患者血清IL-1β、Caspase-3水平、白细胞计数均高于未发生组患者,差异均有统计学意义(P﹤0.05)。多因素分析结果显示,血清IL-1β、Caspase-3及白细胞计数水平升高均是颅内动脉瘤患者术后脑血管痉挛发生的危险因素(OR﹥1,P﹤0.05)。Pearson相关性检验结果显示,血清IL-1β与血清Caspase-3之间呈正相关(r=0.853,P﹤0.01)。血清IL-1β、Caspase-3及两者联合预测颅内动脉瘤患者术后发生脑血管痉挛的曲线下面积(AUC)分别为0.784、0.783、0.845,预测价值均较高,两者联合预测的AUC最大。结论颅内动脉瘤患者术后脑血管痉挛发生风险较高,血清IL-1β、Caspase-3水平升高与颅内动脉瘤患者术后脑血管痉挛发生有关,且两者联合预测术后脑血管痉挛发生的效能较高,可能成为临床预测术后发生脑血管痉挛及治疗靶点的生物学指标。

脑动脉粥样硬化性狭窄患者合并颅内动脉瘤的血流动力学特征及其危险因素研究

目的探讨脑动脉粥样硬化性狭窄患者合并颅内动脉瘤(IA)的血流动力学特征及其危险因素。方法收集2019年9月至2023年1月在安徽医科大学附属宿州医院接受治疗的160例脑动脉粥样硬化性狭窄患者的临床资料。所有患者均进行了CT血管成像(CTA)以及数字减影血管造影(DSA)检查,依据影像学检查结果分为合并IA组(25例)和单纯狭窄组(135例)。比较2组基线资料信息、血流动力学指标。采用多因素Logistic回归分析探讨脑动脉粥样硬化性狭窄患者合并IA的危险因素。通过受试者操作特征(ROC)曲线分析壁面切应力(WSS)及振荡切应指数(OSI)预测脑动脉粥样硬化性狭窄患者合并IA的价值。结果合并IA组WSS、OSI均明显高于单纯狭窄组(P<0.05)。合并IA组中有吸烟史、糖尿病、高血压的百分比均高于单纯狭窄组(P<0.05)。多因素Logistic回归分析显示,吸烟史、糖尿病、高血压、WSS>0.450 Pa、OSI>0.057是脑动脉粥样硬化性狭窄患者合并IA的危险因素(P<0.05)。ROC曲线分析显示,WSS、OSI可用于预测脑动脉粥样硬化性狭窄患者合并IA,曲线下面积分别为0.857、0.784,敏感度分别为0.681、0.859,特异度分别为0.751、0.771(P<0.05)。结论脑动脉粥样硬化性狭窄患者合并IA的危险因素包括吸烟史、糖尿病、高血压、WSS>0.450 Pa、OSI>0.057。WSS、OSI可用于预测脑动脉粥样硬化性狭窄患者合并IA。

高压氧联合尼莫地平在接受颅内动脉瘤夹闭术患者中的效果

目的 探讨颅内动脉瘤(IA)夹闭术患者术后接受高氧与尼莫地平治疗的效果。方法 选取2018年1月至2023年1月在漯河市源汇区人民医院接受IA夹闭术的90例患者作为研究对象,采用随机数字表法分为观察组(45例)和对照组(45例)。术后对照组接受尼莫地平治疗,观察组在对照组基础上接受高压氧治疗。比较两组患者不同时点脑血流动力学指标、神经功能损伤情况、脑血管痉挛(CVS)发生情况、预后、生活质量及日常生活能力。结果 治疗后第14天,观察组大脑中动脉平均血流速度(MFV)、收缩期最大峰值流速(SPV)均高于对照组(P<0.05),而血管阻力指数(RI)及搏动指数(PI)低于对照组(P<0.05),CVS发生率低于对照组(P<0.05),简明健康状况调查表(SF-36)评分及日常生活能力评定量表(ADL)评分高于对照组(P<0.05),格拉斯哥结局量表(GOS)预后情况优于对照组(P<0.05);治疗后第7、14天,观察组美国国立卫生研究院卒中量表(NIHSS)评分低于对照组(P<0.05)。结论 高压氧联合尼莫地平可改善IA夹闭术患者术后脑血流及神经功能,并降低脑血管痉挛发生率,改善患者预后,提高生活质量及日常生活能力。

颅内动脉瘤患者血管内介入术后发生迟发性脑缺血的危险因素及预测模型的建立

目的分析颅内动脉瘤(IA)患者血管内介入术(EVT)后发生迟发性脑缺血(DCI)的危险因素,并建立相关预测模型。方法回顾性收集2020年6月至2023年6月期间于复旦大学附属华山医院虹桥院区接受EVT治疗的106例IA患者的病历资料,根据患者术后是否发生DCI分为DCI组(n=35)和非DCI组(n=71),详细收集和记录患者的临床资料,并对其进行单因素与多因素Logistic回归分析,确定DCI的危险因素并建立预测模型,采用受试者工作特征曲线(ROC)分析该预测模型的效能。结果DCI组患者的高血压比例、吸烟史比例、D-二聚体>1.3 mg/L比例、纤维蛋白原>3.3 g/L比例、WFNS分级≥Ⅳ级比例、改良Fisher分级≥Ⅲ级比例、术中瘤体破裂比例、手术时间>148 min比例、血管痉挛比例明显高于非DCI组,差异均有统计学意义(P<0.05);经多因素Logistic回归分析结果显示,高血压、D-二聚体>1.3 mg/L、纤维蛋白原>3.3 g/L、WFNS分级≥Ⅳ级、改良Fisher分级≥Ⅲ级、手术时间>148 min、术后血管痉挛均为发生DCI的独立危险因素(P<0.05);根据多因素Logistic回归分析结果建立预测模型为Logit(P)=(-0.651)+0.623×(高血压)+0.701×(D-二聚体)+0.682×(纤维蛋白原)+0.672×(WFNS≥Ⅳ级)+0.703×(Fisher分级≥Ⅲ级)+0.655×(手术时间)+0.697×(术后血管痉挛);经ROC分析证实其预测效能尚可。结论IA患者EVT术后存在DCI发生风险,其与高血压、D-二聚体、纤维蛋白原、WFNS分级、改良Fisher分级、手术时间、血管痉挛等因素有关,建议临床应对上述因素予以重视,并积极开展针对性干预措施。

机器人辅助神经内镜下颅内动脉瘤切除术

手术机器人可以在作出精准手术操作步骤的同时,帮助外科医生高效精密地执行手术任务,因此在神经外科手术中被应用推广。机器人辅助神经内镜下切除颅内动脉瘤(IA)手术不仅给神经外科医生提供更加便利、精确的手术操作过程,而且在大脑深部病灶及显微镜视野暴露不充分情况下,能明显减轻对重要神经和血管的损伤,从而让患者获得更好的手术治疗效果。本文介绍机器人辅助神经内镜下IA切除术的详细操作方法,为IA患者的临床治疗提供参考。

3D-Slicer技术助诊常规MRI未确诊的颅内巨大动脉瘤临床案例分析

颅内巨大动脉瘤(GIAs)是目前手术最难处理的脑血管病变之一。尽管显微外科技术取得了显著的进步,但相应的手术发病率和死亡率仍然高达20%。3D-Slicer是一种用于医学图像可视化和分析的软件,本文报道由3D-Slicer技术助诊常规MRI未能确诊的GIAs 1例,指导临床对于颅内动脉瘤尤其是巨大血栓性动脉瘤的夹闭和切除,具有非常好的应用发展前景。