scholarly journals Insufficient platelet inhibition and thromboembolic complications in patients with intracranial aneurysms after stent placement

2016 ◽  
Vol 125 (2) ◽  
pp. 247-253 ◽  
Author(s):  
Hongchao Yang ◽  
Youxiang Li ◽  
Yuhua Jiang
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Intracranial Aneurysms ◽  
Platelet Inhibition ◽  
Thromboembolic Complications ◽  
Anterior Circulation ◽  
Stent Treatment ◽  
Independent Risk Factors ◽  
The Relationship

OBJECT Insufficient platelet inhibition has been associated with an increased incidence of thromboembolic complications in cardiology patients undergoing percutaneous coronary intervention. Data regarding the relationship between insufficient platelet inhibition and thromboembolic complications in patients undergoing neurovascular procedures remain controversial. The purpose of this study was to assess the relationship of insufficient platelet inhibition and thromboembolic complications in patients with intracranial aneurysm undergoing stent treatment. METHODS The authors prospectively recruited patients with intracranial aneurysms undergoing stent treatment and maintained the data in a database. MRI with diffusion-weighted sequences was performed within 24 hours of stent insertion to identify acute ischemic lesions. The authors used thromboelastography to assess the degree of platelet inhibition in response to clopidogrel and aspirin. Univariate and multivariate logistic regression analysis was used to identify potential risk factors of thromboembolic complications. RESULTS One hundred sixty-eight patients with 193 aneurysms were enrolled in this study. Ninety-one of 168 (54.2%) patients with acute cerebral ischemic lesions were identified by diffusion-weighted MRI. In 9 (5.4%) patients with ischemic lesions, transient ischemic attack or stroke was found at discharge, and these complications were found in 11 (6.5%) patients during the follow-up period. The incidence of periprocedural thromboembolic complications increased with resistance to antiplatelet agents, hypertension, hyperlipidemia, complete occlusion, and aneurysm of the anterior circulation. The multivariate regression analysis demonstrated that the anterior circulation and adenosine diphosphate (ADP) inhibition percentage were independent risk factors of perioperative thromboembolic complications. The maximum amplitude and ADP inhibition percentage were independent risk factors for thromboembolic complications during the follow-up period. CONCLUSIONS The ADP inhibition percentage is related to thromboembolic complications after stent placement for intracranial aneurysms. The increase of the ADP inhibition may decrease the risk of thromboembolic complications.

Impact of the Bag Exchange Procedure on Risk of Peritonitis

2010 ◽  
Vol 30 (4) ◽  
pp. 440-447 ◽  
Author(s):  
Jie Dong ◽  
Yuan Chen
Keyword(s):  
Risk Factors ◽  
Peritoneal Dialysis ◽  
Cox Regression ◽  
Face Mask ◽  
First Episode ◽  
Independent Risk Factors ◽  
Randomized Control ◽  
The Relationship ◽  
Control Study

ObjectiveWe studied whether improper bag exchange predicts the first peritonitis episode in continuous ambulatory peritoneal dialysis (CAPD) patients.Patients and MethodsOur single-center prospective observational study of 130 incident urban CAPD patients who started peritoneal dialysis (PD) between March 2005 and August 2008 aimed to determine the relationship between bag exchange procedures examined at the 6th month of PD and risk for a first peritonitis episode. All patients were followed until a first peritonitis episode, censoring, or the end of the study.ResultsThese 130 patients experienced 22 first peritonitis episodes during the 14-month follow-up. During bag exchange evaluation, 51.5% of patients washed their hands improperly, 46.2% failed to check expiration date or bag leakage, and 11.5% forgot to wear a face mask and cap. Patients experiencing peritonitis were more likely to forget to wear a face mask and cap. In multivariate Cox regression model, not wearing a face mask and cap [hazard ratio (HR): 7.26; 95% confidence interval (CI): 2.6 to 20.1; p < 0.001] and having anemia (HR: 0.96; 95% CI: 0.94 to 0.99; p = 0.005) were independent risk factors for a first episode of peritonitis.ConclusionsNot wearing a face mask and cap and having anemia were independent risk factors for peritonitis. A further randomized control study needs to verify the correlation between improper bag exchange technique and peritonitis in PD patients.

Coagulopathy on the first postoperative day predicting the long-term survival of traumatic brain injury patients

2020 ◽  
Author(s):  
Wenxing Cui ◽  
Shunnan Ge ◽  
Yingwu Shi ◽  
Xun Wu ◽  
Jianing Luo ◽  
...  
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Cox Regression ◽  
Term Survival ◽  
Long Term Survival ◽  
Cox Regression Analysis ◽  
Independent Risk Factors ◽  
The Relationship ◽  
Underlying Risk

Abstract Objective: The purpose of this study was to identify the relationship between coagulopathy during the perioperative period (before the operation and on the first day after the operation) and the long-term survival of TBI patients undergoing surgery, as well as to explore the predisposing risk factors that may cause perioperative coagulopathy.Methods: This retrospective study included 447 TBI patients who underwent surgery from January 1, 2015 to April 25, 2019. Clinical parameters, including patient demographic characteristics, biochemical tests, perioperative coagulation function tests (before the operation and on the first day after the operation) and intraoperative factors were collected. Log-rank univariate analysis and Cox regression models were conducted to assess the relationship between perioperative coagulopathy and the long-term survival of TBI patients. Furthermore, univariate and multivariate analyses were performed to identify the underlying risk factors for perioperative coagulopathy.Results: Multivariate Cox regression analysis identified age, AIS(head) = 5, GCS ≤ 8, systolic pressure at admission < 90 mmHg and postoperative coagulopathy (all P < 0.05) as independent risk factors for survival following TBI; we were the first to identify postoperative coagulopathy as an independent risk factor. According to multivariate logistic regression analysis, for the first time, abnormal ALT and RBC at admission, preoperative coagulopathy, infusion of colloidal solution > 1100 mL and intraoperative bleeding > 950 mL (all P < 0.005) were identified as independent risk factors for postoperative coagulation following surgery after TBI.Conclusions: Those who suffered from postoperative coagulopathy due to TBI had a higher hazard for poor prognosis than those who did not. Closer attention should be paid to postoperative coagulopathy and more emphasis should be placed on managing the underlying risk factors.

Clinical risk predictors for bradycardia, supraventricular tachycardia and epilepsy necessitating therapy in patients with unexplained syncope monitored by insertable cardiac monitor

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Onuki ◽  
M Shoji ◽  
M Kikuchi ◽  
T Asano ◽  
H Suzuki ◽  
...  
Keyword(s):  
Risk Factors ◽  
Atrial Fibrillation ◽  
Logistic Regression ◽  
Regression Analysis ◽  
Risk Factor ◽  
Independent Risk Factor ◽  
Sick Sinus Syndrome ◽  
Unexplained Syncope ◽  
Independent Risk Factors

Abstract Background Insertable cardiac monitors (ICMs) allow for lengthy monitoring of cardiac rhythm and improve diagnostic yield in patients with unexplained syncope. In most cardiac syncope cases, sick sinus syndrome, atrioventricular block, and paroxysmal supraventricular tachycardia (SVT) are detected using ICMs. On the other hand, epileptic seizures are sometimes diagnosed as unexplained syncope because in these situations, the loss of consciousness is a similar manifestation. Thus, the population of patients with unexplained syncope monitored by ICMs includes epileptic patients. Clinical risk factors for bradycardia, SVT and epilepsy that necessitate therapy in patients with unexplained syncope are not well known. If these risks can be clarified, clinicians could provide more specific targeted monitoring. Purpose We aimed to identify these predictors. Methods We retrospectively reviewed medical records of consecutive patients who received ICMs to monitor unexplained syncope in three medical facilities. We performed Cox's stepwise logistic regression analysis to identify significant independent risk factors for bradycardia, SVT, and epilepsy. Results One hundred thirty-two patients received ICMs to monitor unexplained syncope. During the 17-month follow-up period, 19 patients (10 patients had sick sinus syndrome and 9 had atrioventricular block) needed pacemaker for bradycardia; 8 patients (3 had atrial flutter, 4 had atrial tachycardia, and 1 had paroxysmal atrial fibrillation) needed catheter ablation for SVT; and 9 patients needed antiepileptic agents from the neurologist.Stepwise logistic regression analysis indicated that syncope during effort (odds ratio [OR] = 3.41; 95% confidence interval [CI], 1.21 to 9.6; p=0.02) was an independent risk factor for bradycardia. Palpitation before syncope (OR = 9.46; 95% CI, 1.78 to 50.10; p=0.008) and history of atrial fibrillation (OR = 10.1; 95% CI, 1.96 to 52.45; p=0.006) were identified as significant independent prognostic factors for SVT. Syncope while supine (OR = 11.7; 95% CI, 1.72 to 79.7; p=0.01) or driving (OR = 15.6; 95% CI, 2.10 to 115.3; p=0.007) was an independent factor for epileptic seizure. Conclusions ICMs are useful devices for diagnosing unexplained syncope. Palpitation, atrial fibrillation and syncope during effort were independent risk factors for bradycardia and for SVT. Syncope while supine or driving was an independent risk factor for epilepsy. We should carefully follow up of patients with these risk factors. Funding Acknowledgement Type of funding source: None

scholarly journals Growth and rupture of unruptured intracranial aneurysms

2019 ◽  
Vol 131 (3) ◽  
pp. 843-851 ◽  
Author(s):  
Seppo Juvela
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Cigarette Smoking ◽  
Intracranial Aneurysms ◽  
Aneurysm Rupture ◽  
Ruptured Aneurysms ◽  
Unruptured Intracranial Aneurysms ◽  
Aneurysm Growth ◽  
Independent Risk Factors

OBJECTIVERisk factors for growth of unruptured intracranial aneurysms (UIAs) during a lifelong follow-up in relation to subsequent rupture are unknown. The author’s aim in this study was to investigate whether risk factors for UIA growth are different for those that lead to rupture than for those that do not.METHODSThe series consists of 87 patients with 111 UIAs diagnosed before 1979, when UIAs were not treated. A total follow-up time of the patients was 2648 person-years for all-cause death and 2182 years when patients were monitored until the first rupture, death due to unrelated causes, or the last contact (annual incidence of aneurysm rupture, 1.2%). The follow-up time between aneurysm measurements was 1669 person-years. Risk factors for UIA growth were analyzed in relation to subsequent rupture.RESULTSThe median follow-up time between aneurysm measurements was 21.7 years (range 1.2–51.0 years). In 40 of the 87 patients (46%), the UIAs increased in size ≥ 1 mm, and in 31 patients (36%) ≥ 3 mm. All ruptured aneurysms in 27 patients grew during the follow-up of 324 person-years (mean growth rates 6.1 mm, 0.92 mm/year, and 37%/year), while growth without rupture occurred in 13 patients during 302 follow-up years (3.9 mm, 0.18 mm/year, and 4%/year) and no growth occurred in 47 patients during 1043 follow-up years. None of the 60 patients without aneurysm rupture experienced one during the subsequent 639 follow-up years after the last aneurysm measurement. Independent risk factors for UIA growth (≥ 1 mm) in all patients were female sex (adjusted OR 3.08, 95% CI 1.04–9.13) and smoking throughout the follow-up time (adjusted OR 3.16, 95% CI 1.10–9.10), while only smoking (adjusted OR 4.36, 95% CI 1.27–14.99) was associated with growth resulting in aneurysm rupture. Smoking was the only independent risk factor for UIA growth ≥ 3 mm resulting in aneurysm rupture (adjusted OR 4.03, 95% CI 1.08–15.07). Cigarette smoking at baseline predicted subsequent UIA growth, while smoking at the end of the follow-up was associated with growth resulting in aneurysm rupture.CONCLUSIONSCigarette smoking is an important risk factor for UIA growth, particularly for growth resulting in rupture. Cessation of smoking may reduce the risk of devastating aneurysm growth.

scholarly journals Risk of Hepatocellular Carcinoma Remains High in Patients with HBV-Related Decompensated Cirrhosis and Long-Term Antiviral Therapy

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Dong-Mei Zhu ◽  
Jing Xie ◽  
Chun-Yan Ye ◽  
Mei-Yun Qian ◽  
Yuan Xue
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Antiviral Therapy ◽  
Cox Regression ◽  
Decompensated Cirrhosis ◽  
Cox Regression Analysis ◽  
Independent Risk Factors ◽  
The Difference

Background. This study aimed to evaluate the risk factors of HCC development in patients with hepatitis B virus (HBV)-related DC and who underwent long-term antiviral therapy. Methods. Data from 308 patients with HBV-related DC and long-term antiviral therapy were collected and retrospectively reviewed. Cox regression analysis was used to analyze independent risk factors of HCC development. Results. Data from 129 patients with definite records were analyzed. The median follow-up time was 5 years (range, 1 to 8 years). At the end of the follow-up, 41 (31.8%) patients developed HCC, and the time from DC diagnosis to HCC incidence who received antiviral therapy was 4.4 years (range, 1–7 years). The incidence of HCC was higher in males (30/78, 38.5%) than in females (11/51, 21.6%) ( P  = 0.04). Patients who developed HCC were significantly older than those who did not develop HCC ( P  < 0.01). The incidence of HCC in patients receiving nucleoside analogues, nucleotide analogues, and combination therapy was 34.7%, 38.1%, and 33.3%, respectively, and the difference showed no significant differences ( P  = 0.95). Multivariate Cox regression analysis demonstrated that male gender and age ≥50 years are independent risk factors of HCC development (OR = 2.987 and 2.408; 95% CI (1.301–6.858) and (1.126–5.149); P  = 0.01 and 0.02, respectively). Conclusion. The risk of HCC remains to be high in patients with HBV-related DC, especially in males aged ≥50 years.

scholarly journals A Study about the Relationship between Thrombotic Events and Peripheral Neutrophil-to-Lymphocyte Ratio in Patients with Newly Diagnosed Essential Thrombocythemia

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 5465-5465
Author(s):  
Hai Cheng ◽  
Dian Zhou ◽  
Jiang Cao ◽  
Wei Chen ◽  
Kunming Qi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Median Survival ◽  
Essential Thrombocythemia ◽  
Newly Diagnosed ◽  
Free Survival ◽  
Lymphocyte Ratio ◽  
Independent Risk Factors ◽  
The Relationship

Abstract To explore the role of neutrophil-to-lymphocyte ratio (NLR) in patients with newly diagnosed essential thrombocythemia (ET) and the relationship with thrombotic events.150 ET patients with ET from January 2013 to December 2017 were retrospectively enrolled in this study to investigate the risk factors of thrombosis and analyse the role of NLR in thrombotic events. The following parameters were evaluated: age, sex, blood routine examination, JAK2V617F mutation, cardiovascular risk factors, history of previous thrombosis, thrombosis during follow-up, examination and biopsy of bone marrow.Age(P=0.001) and JAK2 V617F mutation(P=0.003) were independent risk factors for thrombotic events at diagnosis after Logistic multivariate analysis. WBC count (P=0.047), NLR (P<0.001), age (P=0.037) and thrombosis at diagnosis (P=0.036) were independent risk factors for future thrombotic events and NLR was better for prediction of future thrombotic events than other risk factors in ROC curve. The thrombosis-free survival of thrombotic events in patients with higher NLR(median survival 22.3 months, 95% CI:17.8-26.8) was significantly shorter than that of patients with lower NLR(median survival 55.5 months, 95% CI:53.4-57.5) in Kaplan-Meier analysis (P<0.001). After 60 months of follow-up, patients with lower NLR had a thrombosis-free survival of 97.4%, while patients with higher NLR had a thrombosis-free survival of 46.7%. NLR at diagnosis was a better predictive parameter for future thrombotic events than other clinical parameters in ET patients, but was not associated with thrombosis at diagnosis. Disclosures No relevant conflicts of interest to declare.

Risk factors for and outcomes of intraprocedural rupture during endovascular treatment of unruptured intracranial aneurysms

2017 ◽  
Vol 10 (4) ◽  
pp. 362-366 ◽  
Author(s):  
Shuhei Kawabata ◽  
Hirotoshi Imamura ◽  
Hidemitsu Adachi ◽  
Shoichi Tani ◽  
So Tokunaga ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intracranial Aneurysms ◽  
External Ventricular Drainage ◽  
Anterior Communicating Artery ◽  
Thromboembolic Complications ◽  
Acute Hydrocephalus ◽  
Unruptured Intracranial Aneurysms ◽  
History Of ◽  
Independent Risk Factors ◽  
Poor Outcomes

Background and purposeThe risk factors for intraprocedural rupture (IPR) of unruptured intracranial aneurysms (UIAs) and the outcomes of IPR itself are unclear. This study was performed to identify the independent risk factors for and outcomes of IPR.Materials and methodsWe retrospectively evaluated the medical records and radiologic data of 1375 patients (1406 UIAs) who underwent coil embolization from January 2001 to October 2016.ResultsIPR occurred in 20 aneurysms of 20 patients (1.4%). Univariate analyses showed that the rate of IPR was significantly higher in the treatment of aneurysms with a small dome size, aneurysms in the anterior communicating artery (AcomA) (6.6%), and patients with a medical history of dyslipidemia. Multivariate analyses showed that a small dome size and aneurysms in the AcomA were independently associated with IPR (p=0.0096 and p=0.0001, respectively). IPR induced by a microcatheter was associated with a higher risk of severe subarachnoid hemorrhage than other causes of IPR (57% vs 0%, respectively). Thromboembolic complications occurred in seven (35%) patients with IPR. Six (30%) patients required external ventricular drainage placement after developing symptoms of acute hydrocephalus. The overall morbidity and mortality rates from IPR were 0.22% and 0.15%, respectively.ConclusionsAneurysms in the AcomA and with a small dome size are likely to be risk factors for IPR. IPR induced by microcatheters can result in poor outcomes. The rate of IPR-associated thromboembolic complications is high, and IPR itself is associated with acute hydrocephalus. If managed appropriately, however, most patients with IPR can survive without neurological deterioration.

Safety and efficacy of ticagrelor as single antiplatelet therapy in prevention of thromboembolic complications associated with the Pipeline Embolization Device (PED): multicenter experience

2020 ◽  
Vol 12 (11) ◽  
pp. 1113-1116 ◽  
Author(s):  
Mahmoud H Mohammaden ◽  
Stephen W English ◽  
Christopher J Stapleton ◽  
Eman Khedr ◽  
Ahmed Shoyb ◽  
...  
Keyword(s):  
Antiplatelet Therapy ◽  
Intracranial Aneurysms ◽  
Posterior Circulation ◽  
Thromboembolic Complications ◽  
Anterior Circulation ◽  
Safety And Efficacy ◽  
Complex Aneurysm ◽  
Post Procedure ◽  
Systemic Side Effects ◽  
Ischemic Events

BackgroundFlow diversion (FD) is a common treatment modality for complex intracranial aneurysms. A major concern regarding the use of FD is thromboembolic events (TEE). There is debate surrounding the optimal antiplatelet regimen to prevent TEE. We aim to evaluate the safety and efficacy of ticagrelor as a single antiplatelet therapy (SAPT) for the prevention of TEE following FD for complex aneurysm treatment.MethodsA retrospective review of a prospectively maintained neuroendovascular database at three endovascular centers was performed. Patients were included if they had an intracranial aneurysm that was treated with FD between January 2018 and September 2019 and were treated with ticagrelor as SAPT. Primary outcomes included early (within 72 hours post-procedure) and late (within 6 months) ischemic events.ResultsA total of 24 patients (mean age 47.7 years) with 36 aneurysms were eligible for analysis, including 15 (62.5%) females. 14 (58.3%) patients presented with subarachnoid hemorrhage. 35 aneurysms arose from the anterior circulation and 1 from the posterior circulation. 23 aneurysms had a saccular morphology, whereas 7 were fusiform and 6 were blister. For the treatment of all 36 aneurysms, 30 procedures were performed with 32 FD devices. Procedural in-stent thrombosis occurred in 2 cases and was treated with intra-arterial tirofiban without complications. Aneurysm re-bleeding was reported in 1 (4.2%) patient. There were no reported early or late TEE. Three patients discontinued ticagrelor due to systemic side effects.ConclusionTicagrelor is a safe and effective SAPT for the prevention of TEE after FD. Large multicenter prospective studies are warranted to validate our findings.

scholarly journals Nasal symptoms increase the risk of snoring and snoring increases the risk of nasal symptoms. A longitudinal population study

2021 ◽  
Author(s):  
Maria Värendh ◽  
Christer Janson ◽  
Caroline Bengtsson ◽  
Johan Hellgren ◽  
Mathias Holm ◽  
...  
Keyword(s):  
Risk Factors ◽  
Respiratory Health ◽  
Smoking Status ◽  
Northern Europe ◽  
Nasal Breathing ◽  
Nasal Symptoms ◽  
Increased Risk ◽  
Study Population ◽  
Independent Risk Factors

Abstract Purpose Humans have a preference for nasal breathing during sleep. This 10-year prospective study aimed to determine if nasal symptoms can predict snoring and also if snoring can predict development of nasal symptoms. The hypothesis proposed is that nasal symptoms affect the risk of snoring 10 years later, whereas snoring does not increase the risk of developing nasal symptoms. Methods In the cohort study, Respiratory Health in Northern Europe (RHINE), a random population from Denmark, Estonia, Iceland, Norway, and Sweden, born between 1945 and 1973, was investigated by postal questionnaires in 1999–2001 (RHINE II, baseline) and in 2010–2012 (RHINE III, follow-up). The study population consisted of the participants who had answered questions on nasal symptoms such as nasal obstruction, discharge, and sneezing, and also snoring both at baseline and at follow-up (n = 10,112). Results Nasal symptoms were frequent, reported by 48% of the entire population at baseline, with snoring reported by 24%. Nasal symptoms at baseline increased the risk of snoring at follow-up (adj. OR 1.38; 95% CI 1.22–1.58) after adjusting for age, sex, BMI change between baseline and follow-up, and smoking status. Snoring at baseline was associated with an increased risk of developing nasal symptoms at follow-up (adj. OR 1.22; 95% CI 1.02–1.47). Conclusion Nasal symptoms are independent risk factors for development of snoring 10 years later, and surprisingly, snoring is a risk factor for the development of nasal symptoms.

scholarly journals Endovascular Treatment of Anterior Circulation Aneurysms With the p64 Flow Modulation Device: Mid- and Long-Term Results in 617 Aneurysms From a Single Center

2021 ◽  
Author(s):  
Marta Aguilar Pérez ◽  
Elina Henkes ◽  
Victoria Hellstern ◽  
Carmen Serna Candel ◽  
Christina Wendl ◽  
...  
Keyword(s):  
Intracranial Aneurysms ◽  
High Rate ◽  
Long Term Results ◽  
Effective Treatment Option ◽  
Anterior Circulation ◽  
Acute Hemorrhage ◽  
Unruptured Aneurysms ◽  
Long Term Follow Up

Abstract BACKGROUND Flow diverters have become an important tool in the treatment of intracranial aneurysms, especially when dealing with difficult-to-treat or complex aneurysms. The p64 is the only fully resheathable and mechanically detachable flow diverter available for clinical use. OBJECTIVE To evaluate the safety and effectiveness of p64 for the treatment of intracranial saccular unruptured aneurysms arising from the anterior circulation over a long-term follow-up period. METHODS We retrospectively reviewed our prospectively maintained database to identify all patients who underwent treatment for an intracranial saccular (unruptured or beyond the acute hemorrhage phase) aneurysm arising from the anterior circulation with ≥1 p64 between December 2011 and December 2019. Fusiform aneurysms and dissections were excluded. Aneurysms with prior or concomitant saccular treatment (eg, coiling and clipping) were included. Aneurysms with parent vessel implants other than p64 were excluded. Anatomic features, intraprocedural complications, clinical outcome, as well as clinical and angiographic follow-ups were all recorded. RESULTS In total, 530 patients (388 females; median age 55.9 yr) with 617 intracranial aneurysms met the inclusion criteria. The average number of devices used per aneurysm was 1.1 (range 1-3). Mean aneurysm dome size was 4.8 mm (range 1-27 mm). Treatment-related morbimortality was 2.4%. Early, mid-term, and long-term angiographic follow-up showed complete or near-complete aneurysm occlusion in 76.8%, 89.7%, and 94.5%, respectively. CONCLUSION Treatment of intracranial saccular unruptured aneurysms of the anterior circulation using p64 is a safe and effective treatment option with high rate of occlusion at long-term follow-up and low morbimortality.

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