3 cases of intracranial aneurismal residue following clipping at Viet Duc Hospital were studied. The causes of this condition were anatomical and technical. It is necessary to identified prior surgery the cause of hemorrhage, to limit the disruption of aneurism, to expose entirely the neck of aneurism before the setting of clip and to explore throughly the place of clip- Anterigraphy or systematic Xray control should be made for checking the results
Intracranial Aneurysm ; etiology ; Aneurysm ; Intracranial Arterial Diseases

Adult ; Arachnoid Cysts ; complications ; Female ; Humans ; Intracranial Aneurysm ; etiology

OBJECTIVETo explore the causes, prevention, and management of the complications during intracranial aneurysm embolization with controllable coils (mechanical detachable spiral, MDS; and Guglielmi detachable coil, GDC).

METHODSRetrospective review of 120 cases with 125 intracranial aneurysms embolized with controllable coils from March 1995 to July 1999 was conducted. The 20 accidents (in 18 cases) including aneurysm rupture, over-embolization, protrusion of coil end into the parent artery, and thrombosis of the parent artery were analyzed.

RESULTSAmong the 20 accidents, there were 6 aneurysm ruptures, 6 over-embolizations (in 5 cases), 6 coil protrusions, and 2 thromboses (one was secondary to coil protrusion). The embolization-related mortality was 3.33% (4/120), the permanent neurological deficit was 1.67% (2/120), and the transitory neurological deficit was 3.33% (4/120). The occurrence and outcome of the complications were related to the embolizing technique, the pattern of aneurysm and its parent artery, the imperfection of embolic materials, and the observation and management during embolization.

CONCLUSIONSkilled embolizing technique, better understanding of the angio-anatomy of an aneurysm and its parent artery, correct judgement and management during embolization, and improvement of embolic materials are beneficial to the reduction of complications and to the melioration of the outcome of complications.

Aneurysm, Ruptured ; etiology ; Embolization, Therapeutic ; adverse effects ; instrumentation ; Humans ; Intracranial Aneurysm ; therapy ; Retrospective Studies ; Thrombosis ; etiology

In recent years, in the absence of venous component, dilated, overlapping, and tortuous arteries forming a mass of arterial loops with a coil-like appearance have been defined as pure arterial malformation (PAM). It is extremely rare, and its etiology and treatment have not yet been fully elucidated. Here, we reported 2 cases of PAM with associated aneurysmal subarachnoid hemorrhage in this paper. Both patients had severe headache as the first symptom. Subarachnoid hemorrhage was found by CT and computed tomography angiography (CTA) and PAM with associated aneurysm was found by digital subtraction angiography (DSA). In view of the distribution of blood and the location of aneurysms, the aneurysm rupture was the most likely to be considered. Based on the involvement of the lesion in the distal blood supply, only the aneurysm was clamped during the operation. It used to be consider that PAM is safety, because of the presentation and natural history of previously reported cases. Through the cases we reported, we have doubted about "the benign natural history" and discussed its treatment. PAM can promote the formation of aneurysms and should be reviewed regularly. The surgical indications for PAM patients with aneurysm formation need to be further clarified. Management of PAM patients with ruptured aneurysm is the same as that of ruptured aneurysm. Whether there are indications needed to treat simple arterial malformations remains to be further elucidated with the multicenter, randomized controlled studies on this disease.
Aneurysm, Ruptured/surgery* ; Angiography, Digital Subtraction ; Cerebral Angiography ; Humans ; Intracranial Aneurysm/surgery* ; Subarachnoid Hemorrhage/etiology*

A rare case of bilateral third cranial nerve palsy due to a ruptured anterior communicating artery aneurysm is presented. A 68-yr-old woman was semicomatose with bilaterally fixed dilated pupil, abducted eyes, and ptosis. A computed tomography demonstrated extensive hemorrhage spreading around the both Sylvian and interhemisheric fissure without focal mass effect. Intracranial pressure via extraventricular drainage before surgery was 15-50 mmHg. Three months later, brain MRI showed infarction of left posterior cerebral artery territory and lacuna infarction of the pons. Eleven months after aneurysm repair, nerve palsy improved slowly and recovered partially. The patient communicated well with simple words. The author reviewed and discussed the possible mechanism of this rare neuro-ophthalmological manifestation in view of a false localizing sign.
Rupture, Spontaneous ; Oculomotor Nerve Diseases/*etiology ; Magnetic Resonance Imaging ; Intracranial Aneurysm/*complications/surgery ; Humans ; Female ; Aged

Adult ; Heart Atria ; Heart Neoplasms ; complications ; Humans ; Intracranial Aneurysm ; etiology ; Magnetic Resonance Imaging ; Male ; Myxoma ; complications

OBJECTIVE: To assess the safety and efficacy of Neuroform Atlas stent used in treatment of unruptured wide-neck intracranial aneurysms. METHODS: Clinical data of 62 patients with unruptured wide-neck intracranial aneurysms undergoing Neuroform Atlas stent-assisted coiling from August 2020 to September 2021 were retrospectively analyzed. There were 64 aneurysms in those 62 patients. Among them, 25 aneurysms were located at the bifurcation of M1 segment on middle cerebral artery, 16 at the anterior communicating artery, 10 at the C7 segment of internal carotid artery, 5 at the C6 segment of internal carotid artery, 4 at the apex of basilar artery, 3 at the A3 segment of anterior cerebral artery, and 1 at the M2 segment of middle cerebral artery. All the patients underwent Neuroform Atlas stent-assisted coiling, including 49 patients with single stent assisted coiling and 15 patients with dual stents assisted coiling (14"Y"style and 1"X"style). After the procedure, the immediate DSA was performed to evaluate the status of aneurysm occlusion and the parent artery patency. The clinical follow-up was performed 3 months after the operation and evaluated based on the modified Rankin Scale(mRS).DSA image was reviewed at 6 months after operation and Raymond grading scale was used to assess the status of aneurysm occlusion and the parent artery patency. RESULTS: A total of 62 patients with 64 aneurysms were all achieved technical success(100%).The immediate post-procedural Raymond scale was assessed, including Raymond Ⅰ in 57 aneurysms(89.1%, 57/64), Raymond Ⅱ in 6 aneurysms(9.3%, 6/64) and Raymond Ⅲ in 1 aneurysm(1.6%, 1/64). The peri-procedural complications rate was 4.8%(3/62), 2 patients developed intraoperative thrombosis and 1 patient suffered from local subarachnoid hemorrhage. Among them, 55 patients obtained 3 months clinical follow-up after operation and all the patients had good outcomes (mRS≤2), 50 patients with 52 aneurysms were followed up with DSA 6 months after operation, including Raymond Ⅰ in 45 aneurysms(86.5%, 45/52), Raymond Ⅱ in 4 aneurysms(7.7%, 4/52) and Raymond Ⅲ in 3 aneurysms(5.8%, 3/52). CONCLUSION Neuroform Atlas stent for the treatment of unruptured wide-neck intracranial aneurysms has high safety and good efficacy, and has its advantages over other traditional stents.
Humans ; Intracranial Aneurysm/etiology* ; Retrospective Studies ; Treatment Outcome ; Embolization, Therapeutic/methods* ; Stents/adverse effects* ; Cerebral Angiography

Adult ; Aneurysm, False ; etiology ; therapy ; Embolization, Therapeutic ; Humans ; Intracranial Arterial Diseases ; etiology ; therapy ; Male ; Wounds and Injuries ; therapy

OBJECTIVETo investigate the relationship between cerebral vasospasm and occurrence of delayed ischemic neurological deficit (DIND).

METHODSThe clinical records and radiographic images of 118 patients with subarachnoid hemorrhage admitted during last 5 years were reviewed. The incidence,degree and localization of cerebral vasospasm were evaluated, and morbidity of related DIND was analyzed. Patients with cerebral vasospasm were divided into three groups: Group MCA (middle cerebral artery), Group ACA (anterior cerebral artery) and Group ICA (intracranial carotid artery) according to the location of cerebral vasospasm. The consistency of DIND and image of cerebral infarction were examined.

RESULTThere was a weak correlation between cerebral vasospasm and incidence of DIND (r=0.22; P=0.016). The incidence of DIND was increased with severity of cerebral vasospasm (U=2.589, P<0.05). The group MCA had a significantly higher incidence of DIND than that of ACA and ICA groups (68.0% compared with 36.7% and 25.0%, respectively, chi(2)=8.195, P=0.004), the difference between later two groups was not statistically significant (chi(2)=0.646, P=0.421).

CONCLUSIONCerebral vasospasm may be an important factor leading to DIND occurrence; the severity and location of cerebral vasospasm is related to the incidence of DIND.

Adult ; Aged ; Aneurysm, Ruptured ; complications ; Carotid Artery, Internal ; Female ; Humans ; Intracranial Aneurysm ; complications ; Ischemic Attack, Transient ; etiology ; Male ; Middle Aged ; Rupture, Spontaneous ; Subarachnoid Hemorrhage ; complications ; Time Factors ; Vasospasm, Intracranial ; etiology

The primary objective for the treatment of arteriovenous malformations (AVM) of the brain is to reduce the risk of hemorrhage. The risk of hemorrhage is known to increase with the presence of an aneurysm associated with AVM. The purpose of this report is to describe the development of visual complications after the embolization of a hemorrhagic anterior choroidal artery feeding AVM with an associated aneurysm and to describe the possible causes.
Adult ; Arteries ; Choroid/*blood supply ; Embolization, Therapeutic/*adverse effects ; Hemianopsia/*etiology ; Human ; Intracranial Aneurysm/*complications ; Intracranial Arteriovenous Malformations/*complications/*therapy ; Male