Is 3 years adequate for tracking completely occluded coiled aneurysms?

2020 ◽  
Vol 133 (3) ◽  
pp. 758-764
Author(s):  
Eung Koo Yeon ◽  
Young Dae Cho ◽  
Dong Hyun Yoo ◽  
Su Hwan Lee ◽  
Hyun-Seung Kang ◽  
...  
Keyword(s):  
De Novo ◽  
Careful Monitoring ◽  
Surveillance Period ◽  
Radiological Data ◽  
De Novo Aneurysm ◽  
Low Probability ◽  
Almost All ◽  
Annual Risk

OBJECTIVEThe authors conducted a study to ascertain the long-term durability of coiled aneurysms completely occluded at 36 months’ follow-up given the potential for delayed recanalization.METHODSIn this retrospective review, the authors examined 299 patients with 339 aneurysms, all shown to be completely occluded at 36 months on follow-up images obtained between 2011 and 2013. Medical records and radiological data acquired during the extended monitoring period (mean 74.3 ± 22.5 months) were retrieved, and the authors analyzed the incidence of (including mean annual risk) and risk factors for delayed recanalization.RESULTSA total of 5 coiled aneurysms (1.5%) occluded completely at 36 months showed recanalization (0.46% per aneurysm-year) during the long-term surveillance period (1081.9 aneurysm-years), 2 surfacing within 60 months and 3 developing thereafter. Four showed minor recanalization, with only one instance of major recanalization. The latter involved the posterior communicating artery as an apparent de novo lesion, arising at the neck of a firmly coiled sac, and was unrelated to coil compaction or growth. Additional embolization was undertaken. In a multivariate analysis, a second embolization for a recurrent aneurysm (HR = 22.088, p = 0.003) independently correlated with delayed recanalization.CONCLUSIONSAlmost all coiled aneurysms (98.5%) showing complete occlusion at 36 months postembolization proved to be stable during extended observation. However, recurrent aneurysms were predisposed to delayed recanalization. Given the low probability yet seriousness of delayed recanalization and the possibility of de novo aneurysm formation, careful monitoring may be still considered in this setting but at less frequent intervals beyond 36 months.

Abstract WP131: Is 3 Years Adequate for Tracking Completely Occluded Coiled Aneurysms?

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Eung Koo Yeon
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Medical Records ◽  
De Novo ◽  
Complete Occlusion ◽  
Imaging Surveillance ◽  
Almost All ◽  
Annual Risk

Objective: To ascertain the long-term durability of coiled aneurysms completely occluded at 36 months during follow-up given the potential for delayed recanalization. Methods: As a retrospective review, we examined 299 patients with 339 aneurysms, all completely occluded at 36 months in follow-up images obtained between 2011 and 2013. Medical records and radiologic data acquired during extended monitoring (mean, 74.3±22.5 months) were retrieved, analyzing incidence (including average annual risk) and risk factors of delayed recanalization. Results: A total of five coiled aneurysms (1.5%) occluded completely at 36 months showed recanalization (0.46 % per aneurysm-year) during continued long-term surveillance (1081.9 aneurysm-years), two surfacing within 60 months and three developing thereafter. Four showed minor recanalization, with only one instance of major recanalization. The latter involved posterior communicating artery as an apparent de novo lesion, arising at the neck of a firmly coiled sac, and was unrelated to coil compaction or growth. Additional embolization was undertaken. In multivariate analysis, second embolization for recurred aneurysm (HR=22.088, p=0.003) independently correlated with delayed recanalization. Conclusion: Almost all coiled aneurysms (98.5%) showing complete occlusion at 36 months post-embolization proved to be stable in extended observation. Therefore, it is reasonable to suspend imaging surveillance of coiled aneurysms after 3 years in the absence of demonstrable recanalization. However, recurrent aneurysms were predisposed to delayed recanalization.

Risk of hemorrhage from de novo cerebral aneurysms

2013 ◽  
Vol 118 (1) ◽  
pp. 58-62 ◽  
Author(s):  
William J. Kemp ◽  
Daniel H. Fulkerson ◽  
Troy D. Payner ◽  
Thomas J. Leipzig ◽  
Terry G. Horner ◽  
...  
Keyword(s):  
Risk Factors ◽  
De Novo ◽  
Patient Age ◽  
Patient Âgé ◽  
Long Term Follow Up ◽  
De Novo Aneurysm ◽  
The Mean ◽  
Risk Of Hemorrhage

Object A small percentage of patients will develop a completely new or de novo aneurysm after discovery of an initial aneurysm. The natural history of these lesions is unknown. The authors undertook this statistical evaluation a large cohort of patients with both ruptured and unruptured de novo aneurysms with the aim of analyzing risk factors for rupture and estimating a risk of subarachnoid hemorrhage (SAH). Methods A review of a prospectively maintained database of all aneurysm patients treated by the vascular neurosurgery service of Goodman Campbell Brain and Spine from 1976–2010 was performed. Of the 4718 patients, 611 (13%) had long-term follow-up imaging. The authors identified 27 patients (4.4%) with a total of 32 unruptured de novo aneurysms from routine surveillance imaging. They identified another 10 patients who presented with a new SAH from a de novo aneurysm after treatment of their original aneurysm. The total study group was thus 37 patients with a total of 42 de novo aneurysms. The authors then compared the 27 patients with incidentally discovered aneurysms with the 10 patients with SAH. A statistical analysis was performed, comparing the 2 groups with respect to patient and aneurysm characteristics and risk factors. Results Thirty-seven patients were identified as having true de novo aneurysms. This group had a female predominance and a high percentage of smokers. These 37 patients had a total of 42 de novo aneurysms. Ten of these 42 aneurysms hemorrhaged. De novo aneurysms in both the SAH and non-SAH group were anatomically small (< 10 mm). The estimated risk of hemorrhage over 5 years was 14.5%, higher than the expected SAH risk of small, unruptured aneurysms reported in the ISUIA (International Study of Unruptured Intracranial Aneurysms) trial. There was no statistically significant correlation between hemorrhage and any of the following risk factors: hypertension, diabetes, tobacco and alcohol use, polycystic kidney disease, or previous SAH. There was a statistically significant between-groups difference with respect to patient age, with the mean patient age being significantly older in the SAH aneurysm group than in the non-SAH group (p = 0.047). This is likely reflective of longer follow-up and discovery time, as the mean length of time between initial treatment and discovery of the de novo aneurysm was longer in the SAH group (p = 0.011). Conclusions While rare, de novo aneurysms may have a risk for SAH that is comparatively higher than the risk associated with similarly sized, small, initially discovered unruptured saccular aneurysms. The authors therefore recommend long-term follow-up for all patients with aneurysms, and they consider a more aggressive treatment strategy for de novo aneurysms than for incidentally discovered initial aneurysms.

371 Risk of De Novo Aneurysm Formation in Patients Before Obliteration of Brain Arteriovenous Malformations (AVMs)

Neurosurgery ◽  
2017 ◽  
Vol 64 (CN_suppl_1) ◽  
pp. 287-287
Author(s):  
Alice L Hung ◽  
Taylor Elise Purvis ◽  
Wuyang Yang ◽  
Tomas Garzon-Muvdi ◽  
Justin M Caplan ◽  
...  
Keyword(s):  
De Novo ◽  
Complete Information ◽  
Annual Rate ◽  
Aneurysm Formation ◽  
Brain Avm ◽  
De Novo Aneurysm ◽  
Brain Avms ◽  
Annual Risk

Abstract INTRODUCTION The risk of de novo aneurysm formation is presumed to increase because of increased arterial flow in brain AVMs Little evidence to-date has been presented regarding the risk of aneurysmal formation under the influence of a concurrent AVM. We aim to determine this risk using our institutional data. METHODS Retrospective review of brain AVM patients evaluated at our institution from 1990–2015 was performed. Demographic and baseline characteristics were examined. De novo aneurysm was defined as new aneurysm diagnosis after initial angiographic characterization of AVM. Exposure intervals were censored until obliteration for treated patients and last follow-up for untreated patients. All de novo aneurysms detected during the censored interval were captured, and the annual rate of de novo aneurysm formation was calculated. RESULTS >A total of 672 AVM patients with complete information were included. Overall age was 37.3 years (44.5% male), and overall size of AVM was 3.1 cm. Six patients(0.9%) with 8 de novo aneurysms were found in this cohort. In these six patients, the average age was 46.9 years, with 50.0% males. The average AVM size was 4.1 cm (range: 3–8 cm). Two patients had presented with AVM hemorrhage, and the most common presenting symptom was seizure (50.0%). Most patients underwent radiosurgery (83.3%). Four (66.7%) patients were diagnosed with de novo aneurysms after first AVM treatment. Six aneurysms (75.0%) were prenidal in location. The average aneurysm size at detection was 4.66 mm. Only one patient received treatment specifically for the aneurysm, which was surgically obliterated. The total non-obliterated interval for AVM was 3811.47 years, and the calculated annual rate of de novo aneurysm formation was 0.21%. CONCLUSION The annual risk of de novo aneurysm formation was relatively low at 0.21%, despite having concurrent AVMs Most of these aneurysms were prenidal. Patients developing de novo aneurysms were older in general and more likely to have larger AVMs

Long-Term Follow-Up Survey Reveals a 65% Rate of De Novo Aneurysm Formation More than 10 Years after Ruptured Intracranial Aneurysm Clipping

Neurosurgery ◽  
2009 ◽  
Vol 65 (2) ◽  
pp. 406-406
Author(s):  
Michael Bruneau ◽  
Boris Lubicz ◽  
Michal A. Rynkowski ◽  
Karina Smida-Rynkowska ◽  
B. Pirotte ◽  
...  
Keyword(s):  
Intracranial Aneurysm ◽  
De Novo ◽  
Aneurysm Clipping ◽  
Aneurysm Formation ◽  
Ruptured Intracranial Aneurysm ◽  
Long Term Follow Up ◽  
De Novo Aneurysm

THE STOCKHOLM 20-YEAR FOLLOW-UP OF ANEURYSMAL SUBARACHNOID HEMORRHAGE OUTCOME

Neurosurgery ◽  
2007 ◽  
Vol 60 (6) ◽  
pp. 1017-1024 ◽  
Author(s):  
Göran Edner ◽  
Håkan Almqvist
Keyword(s):  
Subarachnoid Hemorrhage ◽  
De Novo ◽  
Aneurysmal Subarachnoid Hemorrhage ◽  
Hospital Records ◽  
Long Term Outcome ◽  
Aneurysm Formation ◽  
Long Term Follow Up ◽  
De Novo Aneurysm

Abstract OBJECTIVE To assess the clinical and radiological long-term outcome after aneurysmal subarachnoid hemorrhage (SAH) in a defined referral area regarding recurrent SAH and de novo aneurysm formation. METHODS One hundred and two 1-year survivors after aneurysmal SAH, who were treated at the Neurosurgical Clinic, South Hospital, Stockholm, Sweden, between 1983 and 1985, were followed for 20 years. Forty-nine surviving patients were reevaluated. Hospital records and death certificates were scrutinized for all 53 nonsurviving patients. Clinical history penetration, Mini Mental Status, Rankin Disability Score, and Barthel Index were used to evaluate the outcome. Computed tomographic angiography was used to investigate the cerebral arteries. RESULTS One hundred and two patients were traced. Fifty-three patients were deceased. One patient had a hospital record of sustaining an aneurysmal SAH from a known but not clipped aneurysm. Three patients had nonaneurysmal intracerebral hemorrhage and two sustained traumatic SAH. There were 49 surviving patients. Six refused follow-up. None of these patients had hospital records of intracranial disease. Three of the 43 remaining patients could not be tested. None of the survivors had experienced a new SAH. Aneurysm base remnants were observed in 1% (eight patients, 790 person-years of follow-up) and de novo aneurysms were observed in 0.9% (seven patients, 790 person-years of follow-up). CONCLUSION From this epidemiological survey of patients with aneurysmal SAH, it was found that none of the patients experienced a recurrent subarachnoid bleed from the treated aneurysm during a 20-year follow-up period. Thus, a routine extreme long-term follow-up period is not necessary. De novo aneurysm formation and possible enlargements of aneurysm base remnants were observed in almost 2% of patients per person year and should, therefore, be subject of a routine, long-term follow-up.

scholarly journals Lack of impact of polycystic kidney disease on the outcome of aneurysmal subarachnoid hemorrhage: a matched case-control study

2020 ◽  
pp. 1-8
Author(s):  
Heidi J. Nurmonen ◽  
Terhi Huttunen ◽  
Jukka Huttunen ◽  
Arttu Kurtelius ◽  
Satu Kotikoski ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Kidney Disease ◽  
Polycystic Kidney Disease ◽  
De Novo ◽  
Aneurysmal Subarachnoid Hemorrhage ◽  
Polycystic Kidney ◽  
Significant Difference ◽  
De Novo Aneurysm

OBJECTIVEThe authors set out to study whether autosomal dominant polycystic kidney disease (ADPKD), an established risk factor for intracranial aneurysms (IAs), affects the acute course and long-term outcome of aneurysmal subarachnoid hemorrhage (aSAH).METHODSThe outcomes of 32 ADPKD patients with aSAH between 1980 and 2015 (median age 43 years; 50% women) were compared with 160 matched (age, sex, and year of aSAH) non-ADPKD aSAH patients in the prospectively collected Kuopio Intracranial Aneurysm Patient and Family Database.RESULTSAt 12 months, 75% of the aSAH patients with ADPKD versus 71% of the matched-control aSAH patients without ADPKD had good outcomes (Glasgow Outcome Scale score 4 or 5). There was no significant difference in condition at admission. Hypertension had been diagnosed before aSAH in 69% of the ADPKD patients versus 27% of controls (p < 0.001). Multiple IAs were present in 44% of patients in the ADPKD group versus 25% in the control group (p = 0.03). The most common sites of ruptured IAs were the anterior communicating artery (47% vs 29%, p = 0.05) and the middle cerebral artery bifurcation (28% vs 31%), and the median size was 6.0 mm versus 8.0 mm (p = 0.02). During the median follow-up of 11 years, a second aSAH occurred in 3 of 29 (10%) ADPKD patients and in 4 of 131 (3%) controls (p = 0.11). A fatal second aSAH due to a confirmed de novo aneurysm occurred in 2 (6%) of the ADPKD patients but in none of the controls (p = 0.027).CONCLUSIONSThe outcomes of ADPKD patients with aSAH did not differ significantly from those of matched non-ADPKD aSAH patients. ADPKD patients had an increased risk of second aSAH from a de novo aneurysm, warranting long-term angiographic follow-up.

Late angiographic follow-up review of surgically treated aneurysms

1999 ◽  
Vol 91 (3) ◽  
pp. 396-401 ◽  
Author(s):  
Carlos A. David ◽  
A. Giancarlo Vishteh ◽  
Robert F. Spetzler ◽  
Michael Lemole ◽  
Michael T. Lawton ◽  
...  
Keyword(s):  
De Novo ◽  
Significant Risk ◽  
Content Type ◽  
Multiple Aneurysms ◽  
Aneurysm Formation ◽  
De Novo Aneurysm ◽  
Chi Square Analysis ◽  
Fine Print

Object. This study was undertaken to evaluate the long-term angiographic outcome of surgically treated aneurysms, which is unknown. Specifically, the incidence of recurrent aneurysms, the fate of residual necks, and the de novo formation of aneurysms were evaluated.Methods. One hundred two patients (80 females and 22 males; mean age 49 years; range 12–78 years) harboring a total of 167 aneurysms underwent late follow-up angiography; 160 aneurysms were surgically treated. Late angiographic follow-up review was obtained at a mean of 4.4 ± 1.6 years postsurgery (range 2.6–9.7 years). Late follow-up angiography revealed two recurrent aneurysms (1.5%) of 135 clipped aneurysms without residua. Of 12 aneurysms with known residua, there were eight “dog-ear” residua, of which two (25%) enlarged. One hemorrhage was noted, yielding a hemorrhage risk of 1.9% per year. A second subgroup with broad-based residua revealed dramatic regrowth in three of four cases. Eight de novo aneurysms were found in six patients, for an annual risk of 1.8% per year. A history of multiple aneurysms was associated with de novo aneurysm formation (p = 0.049, chi-square analysis).Conclusions. This study confirms the long-term efficacy of aneurysm clip ligation. In addition, the authors found there is a small but significant risk of de novo aneurysm formation, particularly in patients with multiple aneurysms. Most residual aneurysm rests appear to remain stable, although a subset may enlarge or rupture. These findings support the rationale for late angiographic follow-up review in patients with aneurysms.

scholarly journals Aneurysm growth and de novo aneurysms during aneurysm surveillance

2016 ◽  
Vol 125 (6) ◽  
pp. 1374-1382 ◽  
Author(s):  
Joseph C. Serrone ◽  
Ryan D. Tackla ◽  
Yair M. Gozal ◽  
Dennis J. Hanseman ◽  
Steven L. Gogela ◽  
...  
Keyword(s):  
Risk Factors ◽  
Patient Compliance ◽  
De Novo ◽  
Low Risk ◽  
Aneurysm Formation ◽  
Surveillance Imaging ◽  
Aneurysm Growth ◽  
De Novo Aneurysm ◽  
Annual Risk

OBJECTIVE Many low-risk unruptured intracranial aneurysms (UIAs) are followed for growth with surveillance imaging. Growth of UIAs likely increases the risk of rupture. The incidence and risk factors of UIA growth or de novo aneurysm formation require further research. The authors retrospectively identify risk factors and annual risk for UIA growth or de novo aneurysm formation in an aneurysm surveillance protocol. METHODS Over an 11.5-year period, the authors recommended surveillance imaging to 192 patients with 234 UIAs. The incidence of UIA growth and de novo aneurysm formation was assessed. With logistic regression, risk factors for UIA growth or de novo aneurysm formation and patient compliance with the surveillance protocol was assessed. RESULTS During 621 patient-years of follow-up, the incidence of aneurysm growth or de novo aneurysm formation was 5.0%/patient-year. At the 6-month examination, 5.2% of patients had aneurysm growth and 4.3% of aneurysms had grown. Four de novo aneurysms formed (0.64%/patient-year). Over 793 aneurysm-years of follow-up, the annual risk of aneurysm growth was 3.7%. Only initial aneurysm size predicted aneurysm growth (UIA < 5 mm = 1.6% vs UIA ≥ 5 mm = 8.7%, p = 0.002). Patients with growing UIAs were more likely to also have de novo aneurysms (p = 0.01). Patient compliance with this protocol was 65%, with younger age predictive of better compliance (p = 0.01). CONCLUSIONS Observation of low-risk UIAs with surveillance imaging can be implemented safely with good adherence. Aneurysm size is the only predictor of future growth. More frequent (semiannual) surveillance imaging for newly diagnosed UIAs and UIAs ≥ 5 mm is warranted.

scholarly journals Epidemiology and outcomes of pediatric intracranial aneurysms: comparison with an adult population in a 30-year, prospective database

2021 ◽  
pp. 1-10
Author(s):  
Risheng Xu ◽  
Michael E. Xie ◽  
Wuyang Yang ◽  
Philippe Gailloud ◽  
Justin M. Caplan ◽  
...  
Keyword(s):  
Pediatric Patient ◽  
Intracranial Aneurysms ◽  
De Novo ◽  
Adult Population ◽  
Time Period ◽  
Institutional Experience ◽  
De Novo Aneurysm ◽  
Prospective Database

OBJECTIVE Pediatric intracranial aneurysms are rare. Most large series in the last 15 years reported on an average of only 39 patients. The authors sought to report their institutional experience with pediatric intracranial aneurysms from 1991 to 2021 and to compare pediatric patient and aneurysm characteristics with those of a contemporaneous adult cohort. METHODS Pediatric (≤ 18 years of age) and adult patients with one or more intracranial aneurysms were identified in a prospective database. Standard epidemiological features and outcomes of each pediatric patient were retrospectively recorded. These results were compared with those of adult aneurysm patients managed at a single institution over the same time period. RESULTS From a total of 4500 patients with 5150 intracranial aneurysms admitted over 30 years, there were 47 children with 53 aneurysms and 4453 adults with 5097 aneurysms; 53.2% of children and 36.4% of adults presented with a subarachnoid hemorrhage (SAH). Pediatric aneurysms were significantly more common in males, more likely giant (≥ 25 mm), and most frequently located in the middle cerebral artery. Overall, 85.1% of the pediatric patients had a modified Rankin Scale score ≤ 2 at the last follow-up (with a mean follow-up of 65.9 months), and the pediatric mortality rate was 10.6%; all 5 patients who died had an SAH. The recurrence rate of treated aneurysms was 6.7% (1/15) in the endovascular group but 0% (0/31) in the microsurgical group. No de novo aneurysms occurred in children (mean follow-up 5.5 years). CONCLUSIONS Pediatric intracranial aneurysms are significantly different from adult aneurysms in terms of sex, presentation, location, size, and outcomes. Future prospective studies will better characterize long-term aneurysm recurrence, rebleeds, and de novo aneurysm occurrences. The authors currently favor microsurgical over endovascular treatment for pediatric aneurysms.

scholarly journals Long-term outcomes of fully covered self-expandable metal stents versus plastic stents in chronic pancreatitis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sang Hoon Lee ◽  
Yeon Suk Kim ◽  
Eui Joo Kim ◽  
Hee Seung Lee ◽  
Jeong Youp Park ◽  
...  
Keyword(s):  
Chronic Pancreatitis ◽  
Clinical Efficacy ◽  
De Novo ◽  
Plastic Stents ◽  
Metal Stents ◽  
Plastic Stent ◽  
Sems Group ◽  
Spontaneous Migration

AbstractChronic pancreatitis (CP) related main pancreatic duct (MPD) stricture has been a challenge for endoscopists. Fully covered self-expandable metal stents (FC-SEMS) has been tried in CP patients, but the efficacy and safety are still controversial. Thus, we aim to compare the long-term clinical efficacy of FC-SEMS vs. plastic stent placement in persistent MPD strictures secondary to CP. Between 2007 and 2018, 80 chronic pancreatitis patients (58 males, median age 49 years), who underwent endoscopic placement of FC-SEMS (n = 26) and plastic stent (n = 54) for persistent MPD strictures after at least 3 months of initial single plastic stenting, were retrospectively analyzed during a median follow-up duration of 33.7 months. As a result, MPD stricture resolution rate was statistically higher in FC-SEMS group (87.0% vs. 42.0%, p < 0.001). Although immediate complications occurred similarly (38.5% vs. 37.0%, p = 0.902), spontaneous migration (26.9%) and de novo strictures (23.1%) were pronounced delayed complications in FC-SEMS group. Pain relief during follow-up was significantly higher in FC-SEMS group (76.9% vs. 53.7%, p = 0.046). The total procedure cost was similar in both groups ($1,455.6 vs. $1,596.9, p = 0.486). In comparison with plastic stent, FC-SEMS placement for persistent MPD strictures had favorable long-term clinical efficacy, with its typical complications like spontaneous migration and de novo strictures.

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