Abstract P543: Duration of Ischemia is Associated With Outcome After Endovascular Reperfusion Independent of Infarct Size

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Sunil A Sheth ◽  
Osama O Zaidat ◽  
Ameer E Hassan ◽  
Johanna Fifi ◽  
Ashish Nanda ◽  
...  
Keyword(s):  
Propensity Score ◽  
Elderly Patients ◽  
Infarct Size ◽  
Propensity Score Matching ◽  
Multivariable Analysis ◽  
Functional Independence ◽  
Advanced Age ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Younger Patients

Introduction: Despite advanced imaging and rapid recanalization, the majority of patients with large vessel occlusion (LVO) acute ischemic stroke (AIS) do not achieve functional independence at 90 days. Here, we explore the hypothesis that prolonged ischemia worsens clinical outcome beyond changes reflected in final infarct size, particularly in elderly patients. Methods: From the prospective, multicenter COMPLETE (Penumbra, Inc) registry, patients were included if they underwent endovascular therapy (EVT) for anterior circulation LVO, achieved TICI 2b/3 reperfusion, and EVT began within 90 minutes of imaging. Final infarct volumes (FIV) were measured on 24-48h post-EVT scans using ASPECTS. Multivariable logistic regression was used to determine the effect of stroke onset to hospital arrival time (OTA) on likelihood of functional independence (mRS 0-2) at 90 days, adjusting for age, NIHSS, occlusion location, pre-morbid mRS and final infarct. The effect of OTA on outcome was evaluated in older vs. younger patients using propensity score matching. Data are presented as median [IQR] or OR [95% CI]. Results: Among 302 patients, median age was 71 [61-79], NIHSS was 15 [10-20], 56% were female, median OTA was 154 [75-320]. Median FIV ASPECTS was 7 [6-8]. In multivariable analysis adjusting for FIV, longer OTA was associated with decreased likelihood of functional independence (OR 0.74 [0.57-0.96]). FIV-independent worsening with prolonged OTA was more pronounced with advanced age (Figure). Using propensity score matching, elderly patients (age > 70) matched by age, NIHSS, occlusion location and FIV were less likely to have functional independence with prolonged OTA (Coef -0.2, p<0.01), but not younger patients (age ≤ 70, Coef -0.1, p=0.3). Conclusions: In patients with LVO AIS who achieve successful reperfusion, delays in EVT reduce the likelihood of good clinical outcomes independent of FIV. This effect is more pronounced with advanced age.

Abstract P525: Endovascular Thrombectomy Outcomes in Transferred Octogenarians: A Multicenter Pooled Analysis

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Jonathan Greco ◽  
Michael Chen ◽  
Ameer E Hassan ◽  
Nitin Goyal ◽  
Haris Kamal ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Functional Independence ◽  
Pooled Analysis ◽  
Stroke Severity ◽  
Large Vessel Occlusion ◽  
Vessel Occlusion ◽  
Endovascular Thrombectomy ◽  
Younger Patients ◽  
Profound Disability ◽  
Iv Tpa

Background: Acute ischemic strokes outcomes may be less favorable in elderly patients. Whether transferring octogenarians with large vessel occlusion (LVO) for endovascular thrombectomy (EVT) results in similar outcomes to younger patients is uncertain. Methods: A pooled cohort from 6 centers (Europe, US) from 1/2014 to 5/2020 of pts with (ICA, M1, M2) LVO transferred for EVT ≤ 24 hrs from LKW. Patients were stratified into < 80 vs ≥ 80 years old. We compared 90 day functional independence and safety outcomes and assessed for predictors of good outcome (mRS 0-2) and profound disability (mRS 5-6). Results: Of 1176 pts received EVT as transfers, 216 (18%) were octogenarians. Baseline NIHSS was higher in octogenarians [19 (14, 22) vs 17 (12, 21), p<0.001], while IV tPA (52% vs 54%, p=0.52) and time LKW to EVT center [285 (193, 537) vs 272 (190, 470) min, p=0.15] were similar. Functional independence rates were lower in patients ≥ 80 as compared to < 80 (26% vs 46%, aOR 0.50, 95%CI 0.34-0.75, p=0.001). sICH was similar (8.6 vs 9.9%, p=0.56), but octogenarians had significantly higher 90-day mortality (42% vs 17%, p<0.001). Milder strokes (aOR 0.88, 95%CI 0.86-0.91, p<0.001), earlier presentation (aOR 0.95, 95%CI 0.91-0.98, p=0.004) and IV tPA (aOR 1.34, 95%CI 0.98-1.84, p=0.069) were associated with higher functional independence odds after EVT in octogenarians. Higher stroke severity (12% for each point, aOR=1.12, 95%CI 1.11-1.17-, p<0.001) and delayed reperfusion (3% for each additional hr, aOR 1.03, 95%CI 1.00-1.06, p=0.071) were associated with profound disability following EVT in octogenarians. Conclusion: EVT may be associated with lower independence rates in transferred octogenarians with LVO. Milder stroke severity, earlier presentation and IV thrombolysis increased the odds of good outcomes in octogenarians. Severe strokes and later treatment were associated with profound disability. Optimized selection and workflow is warranted in transferring elderly patients for EVT.

scholarly journals Liver resection for colorectal liver-limited metastases in elderly patients: a propensity score matching analysis

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Ke-Min Jin ◽  
Kun Wang ◽  
Quan Bao ◽  
Hong-Wei Wang ◽  
Bao-Cai Xing
Keyword(s):  
Propensity Score ◽  
Elderly Patients ◽  
Propensity Score Matching ◽  
Disease Free Survival ◽  
The Elderly ◽  
Multivariate Regression Analysis ◽  
Cancer Specific Survival ◽  
Younger Patients ◽  
Propensity Score Matching Analysis ◽  
American Society

Abstract Background Few studies have focused on the role of hepatectomy for colorectal liver-limited metastases in elderly patients compared to matched younger patients. Methods From January 2000 to December 2018, 724 patients underwent hepatectomy for colorectal liver-limited metastases. Based on a 1:2 propensity score matching (PSM) model, 64 elderly patients (≥ 70 years of age) were matched to 128 younger patients (< 70 years of age) to obtain two balanced groups with regard to demographic, therapeutic, and prognostic factors. Results There were 73 elderly and 651 younger patients in the unmatched cohort. Compared with the younger group (YG), the elderly group (EG) had significantly higher proportion of American Society of Anesthesiologists score III and comorbidities and lower proportion of more than 3 liver metastases and postoperative chemotherapy (p < 0.05). After PSM for these factors, rat sarcoma virus proto-oncogene/B-Raf proto-oncogene (RAS/BRAF) mutation status and primary tumor sidedness, the EG had significantly less median intraoperative blood loss than the YG (175 ml vs. 200 ml, p = 0.046), a shorter median postoperative hospital stay (8 days vs. 11 days, p = 0.020), and a higher readmission rate (4.7% vs.0%, p = 0.036). The EG also had longer disease-free survival (DFS), overall survival (OS), and cancer-specific survival (CSS) compared to the YG, but these findings were not statistically significant (p > 0.05). Old age was not an independent factor for DFS, OS, and CSS by Cox multivariate regression analysis (p > 0.05). Conclusions Hepatectomy is safe for colorectal liver-limited metastases in elderly patients, and these patients may subsequently benefit from prolonged DFS, OS, and CSS.

scholarly journals Liver Resection for Colorectal Liver-limited Metastases in Elderly Patients: A Propensity Score Matching Analysis

2020 ◽  
Author(s):  
Ke-Min Jin ◽  
Kun Wang ◽  
Quan Bao ◽  
Hong-Wei Wang ◽  
Bao-Cai Xing
Keyword(s):  
Propensity Score ◽  
Elderly Patients ◽  
Propensity Score Matching ◽  
Disease Free Survival ◽  
The Elderly ◽  
Multivariate Regression Analysis ◽  
Cancer Specific Survival ◽  
Younger Patients ◽  
Propensity Score Matching Analysis ◽  
American Society

Abstract Background: Few studies have focused on the role of hepatectomy for colorectal liver-limited metastases in elderly patients compared to matched younger patients.Methods: From January 2000 to December 2018, 724 patients underwent hepatectomy for colorectal liver-limited metastases. Based on a 1:2 propensity score matching (PSM) model, 64 elderly patients (≥70 years of age) were matched to 128 younger patients (＜70 years of age) to obtain two balanced groups with regards to demographic, therapeutic and prognostic factors.Results: There were 73 elderly and 651 younger patients in the unmatched cohort. Compared with the younger group (YG), the elderly group (EG) had significantly higher proportion of American Society of Anesthesiologists score Ⅲ and comorbidities, and lower proportion of more than 3 liver metastases and postoperative chemotherapy (p<0.05). After PSM for these factors, rat sarcoma virus proto-oncogene/B-Raf proto-oncogene (RAS/BRAF) mutation status and primary tumor sidedness, the EG had significantly less median intraoperative blood loss than the YG (175ml vs. 200ml, p=0.046), a shorter median postoperative hospital stay (8 days vs. 11 days, p=0.020) and a higher readmission rate (4.7% vs.0%, p=0.036). The EG also had longer disease-free survival (DFS), overall survival (OS) and cancer-specific survival (CSS) compared to the YG, but these findings were not statistically significant (p>0.05). Old age was not an independent factor for DFS, OS and CSS by Cox multivariate regression analysis (p>0.05).Conclusions: Hepatectomy is safe for colorectal liver-limited metastases in elderly patients, and these patients may subsequently benefit from prolonged DFS, OS and CSS.

Endovascular reperfusion outcomes in patients with a stroke and low ASPECTS is highly dependent on baseline infarct volumes

2021 ◽  
pp. neurintsurg-2020-017184
Author(s):  
Mehdi Bouslama ◽  
Clara M Barreira ◽  
Diogo C Haussen ◽  
Gabriel Martins Rodrigues ◽  
Leonardo Pisani ◽  
...  
Keyword(s):  
Ct Perfusion ◽  
Infarct Volume ◽  
Care Center ◽  
Tertiary Care ◽  
Multivariable Analysis ◽  
Functional Independence ◽  
Primary Outcome Measure ◽  
Modified Rankin Scale ◽  
Anterior Circulation ◽  
Vessel Occlusion

BackgroundPatients with large vessel occlusion stroke (LVOS) and a low Alberta Stroke Program Early CT Score (ASPECTS) are often not offered endovascular therapy (ET) as they are thought to have a poor prognosis.ObjectiveTo compare the outcomes of patients with low and high ASPECTS undergoing ET based on baseline infarct volumes.MethodsReview of a prospectively collected endovascular database at a tertiary care center between September 2010 and March 2020. All patients with anterior circulation LVOS and interpretable baseline CT perfusion (CTP) were included. Subjects were divided into groups with low ASPECTS (0–5) and high ASPECTS (6-10) and subsequently into limited and large CTP-core volumes (cerebral blood flow 30% >70 cc). The primary outcome measure was the difference in rates of 90-day good outcome as defined by a modified Rankin Scale (mRS) score of 0 to 2 across groups.Results1248 patients fit the inclusion criteria. 125 patients had low ASPECTS, of whom 16 (12.8%) had a large core (LC), whereas 1123 patients presented with high ASPECTS, including 29 (2.6%) patients with a LC. In the category with a low ASPECTS, there was a trend towards lower rates of functional independence (90-day modified Rankin Scale (mRS) score 0-2) in the LC group (18.8% vs 38.9%, p=0.12), which became significant after adjusting for potential confounders in multivariable analysis (aOR=0.12, 95% CI 0.016 to 0.912, p=0.04). Likewise, LC was associated with significantly lower rates of functional independence (31% vs 51.9%, p=0.03; aOR=0.293, 95% CI 0.095 to 0.909, p=0.04) among patients with high ASPECTS.ConclusionsOutcomes may vary significantly in the same ASPECTS category depending on infarct volume. Patients with ASPECTS ≤5 but baseline infarct volumes ≤70 cc may achieve independence in nearly 40% of the cases and thus should not be excluded from treatment.

Efficacy and safety of rescue stenting following failed mechanical thrombectomy for anterior circulation large vessel occlusion: propensity score analysis

2019 ◽  
Vol 12 (3) ◽  
pp. 271-273 ◽  
Author(s):  
Feng Peng ◽  
Junfang Wan ◽  
Wenhua Liu ◽  
Wenguo Huang ◽  
Li Wang ◽  
...  
Keyword(s):  
Propensity Score ◽  
Propensity Score Matching ◽  
Mechanical Thrombectomy ◽  
Propensity Score Analysis ◽  
Artery Occlusion ◽  
Large Vessel ◽  
Large Artery ◽  
Large Vessel Occlusion ◽  
Anterior Circulation ◽  
Vessel Occlusion

PurposeTo evaluate the effectiveness and safety of rescue stenting (RS) after failed mechanical thrombectomy (MT) for patients with large artery occlusion in the anterior circulation.MethodsConsecutive patients who experienced failed reperfusion and subsequently did or did not undergo RS at 16 comprehensive stroke centers were enrolled from January 2015 to June 2018. Propensity score matching was used to achieve baseline balance between the patient groups. Symptomatic intracranial hemorrhage (sICH) at 48 hours and the modified Rankin Scale scores and mortality at 3 months in the two groups were compared.ResultsA total of 90 patients with RS and 117 patients without RS after failed MT were enrolled. Propensity score matching analysis selected 132 matched patients. The good outcome rate was significantly higher in matched patients with RS than in those without RS (36.4% vs 19.7%, p=0.033), whereas the sICH (13.6% vs 21.2%, p=0.251) and mortality (31.9% vs 43.9%, p=0.151) were not significantly different between the groups.ConclusionsRS seems to be an effective safe choice for patients with large vessel occlusion of the anterior circulation who underwent failed MT.

scholarly journals More Retrieval Attempts are Associated with Poorer Functional Outcome After Unsuccessful Thrombectomy

2021 ◽  
Author(s):  
F. Flottmann ◽  
N. van Horn ◽  
M. E. Maros ◽  
H. Leischner ◽  
M. Bechstein ◽  
...  
Keyword(s):  
Propensity Score ◽  
Clinical Outcome ◽  
Propensity Score Matching ◽  
Mechanical Thrombectomy ◽  
Harmful Effect ◽  
Functional Independence ◽  
Vessel Occlusion ◽  
Endovascular Thrombectomy ◽  
Stroke Registry ◽  
The Impact

Abstract Purpose In mechanical thrombectomy, it has been hypothesized that multiple retrieval attempts might the improve reperfusion rate but not the clinical outcome. In order to assess a potential harmful effect of a mechanical thrombectomy on patient outcome, the number of retrieval attempts was analyzed. Only patients with a thrombolysis in cerebral infarction (TICI) score of 0 were reviewed to exclude the impact of eventual successful reperfusion on the mechanical hazardousness of repeated retrievals. Methods In this study 6635 patients who underwent endovascular thrombectomy (EVT) for acute large vessel occlusion (LVO) from the prospectively administered multicenter German Stroke Registry were screened. Insufficient reperfusion was defined as no reperfusion (TICI score of 0), whereas a primary outcome was defined as functional independence (modified Rankin scale [mRS] 0–2 at day 90). Propensity score matching and multivariable logistic regressions were then performed to adjust for confounders. Results A total of 377 patients (7.8%) had a final TICI score of 0 and were included in the study. After propensity score matching functional independence was found to be significantly more frequent in patients who underwent ≤ 2 retrieval attempts (14%), compared to patients with > 2 retrieval attempts (3.9%, OR 0.29, 95% CI 0.07–0.73, p = 0.009). After adjusting for age, sex, admission NIHSS score, and location of occlusion, more than two retrieval attempts remained significantly associated with lower odds of functional independence at 90 days (OR 0.2, 95% CI 0.07–0.52, p = 0.002). Conclusion In patients with failure of reperfusion, more than two retrieval attempts were associated with a worse clinical outcome, therefore indicating a possible harmful effect of multiple retrieval attempts.

scholarly journals Liver Resection for Colorectal Liver-limited Metastases in Elderly Patients: A Propensity Score Matching Analysis

2020 ◽  
Author(s):  
Ke-Min Jin ◽  
Kun Wang ◽  
Quan Bao ◽  
Hong-Wei Wang ◽  
Bao-Cai Xing
Keyword(s):  
Propensity Score ◽  
Elderly Patients ◽  
Propensity Score Matching ◽  
Disease Free Survival ◽  
The Elderly ◽  
Multivariate Regression Analysis ◽  
Cancer Specific Survival ◽  
Younger Patients ◽  
Propensity Score Matching Analysis ◽  
American Society

Abstract Background: Few studies have focused on the role of hepatectomy for colorectal liver-limited metastases in elderly patients compared to matched younger patients.Methods: From January 2000 to December 2018, 724 patients underwent hepatectomy for colorectal liver-limited metastases. Based on a 1:2 propensity score matching (PSM) model, 64 elderly patients (≥ 70 years of age) were matched to 128 younger patients (༜70 years of age) to obtain two balanced groups with regards to demographic, therapeutic and prognostic factors.Results: There were 73 elderly and 651 younger patients in the unmatched cohort. Compared with the younger group (YG), the elderly group (EG) had significantly higher proportion of American Society of Anesthesiologists score Ⅲ and comorbidities, and lower proportion of more than 3 liver metastases and postoperative chemotherapy (p < 0.05). After PSM for these factors, rat sarcoma virus proto-oncogene/B-Raf proto-oncogene (RAS/BRAF) mutation status and primary tumor sidedness, the EG had significantly less median intraoperative blood loss than the YG (175 ml vs. 200 ml, p = 0.046), a shorter median postoperative hospital stay (8 days vs. 11 days, p = 0.020) and a higher readmission rate (4.7% vs.0%, p = 0.036). The EG also had longer disease-free survival (DFS), overall survival (OS) and cancer-specific survival (CSS) compared to the YG, but these findings were not statistically significant (p > 0.05). Old age was not an independent factor for DFS, OS and CSS by Cox multivariate regression analysis (p > 0.05).Conclusions: Hepatectomy is safe for colorectal liver-limited metastases in elderly patients, and these patients may subsequently benefit from prolonged DFS, OS and CSS.

scholarly journals Liver Resection for Colorectal Liver-limited Metastases in Elderly Patients: A Propensity Score Matching Analysis

2020 ◽  
Author(s):  
Ke-Min Jin ◽  
Kun Wang ◽  
Quan Bao ◽  
Hong-Wei Wang ◽  
Bao-Cai Xing
Keyword(s):  
Propensity Score ◽  
Elderly Patients ◽  
Propensity Score Matching ◽  
Disease Free Survival ◽  
The Elderly ◽  
Multivariate Regression Analysis ◽  
Cancer Specific Survival ◽  
Younger Patients ◽  
Propensity Score Matching Analysis ◽  
American Society

Abstract Background: Few studies have focused on the role of hepatectomy for colorectal liver-limited metastases in elderly patients compared to matched younger patients. Methods: From January 2000 to December 2018, 724 patients underwent hepatectomy for colorectal liver-limited metastases. Based on a 1:2 propensity score matching (PSM) model, 64 elderly patients (≥70 years of age) were matched to 128 younger patients (＜70 years of age) to obtain two balanced groups with regards to demographic, therapeutic and prognostic factors.Results: There were 73 elderly and 651 younger patients in the unmatched cohort. Compared with the younger group (YG), the elderly group (EG) had significantly higher proportion of American Society of Anesthesiologists score Ⅲ and comorbidities, and lower proportion of more than 3 liver metastases and postoperative chemotherapy (p<0.05). After PSM for these factors, rat sarcoma virus proto-oncogene/B-Raf proto-oncogene (RAS/BRAF) mutation status and primary tumor sidedness, the EG had significantly less median intraoperative blood loss than the YG (175ml vs. 200ml, p=0.046), a shorter median postoperative hospital stay (8 days vs. 11 days, p=0.020) and a higher readmission rate (4.7% vs.0%, p=0.036). The EG also had longer disease-free survival (DFS), overall survival (OS) and cancer-specific survival (CSS) compared to the YG, but these findings were not statistically significant (p>0.05). Old age was not an independent factor for DFS, OS and CSS by Cox multivariate regression analysis (p>0.05). Conclusions: Hepatectomy is safe for colorectal liver-limited metastases in elderly patients, and these patients may subsequently benefit from prolonged DFS, OS and CSS.

Revascularization and functional outcomes after mechanical thrombectomy for acute ischemic stroke in elderly patients

2020 ◽  
Vol 132 (4) ◽  
pp. 1182-1187 ◽  
Author(s):  
Carrie E. Andrews ◽  
Nikolaos Mouchtouris ◽  
Evan M. Fitchett ◽  
Fadi Al Saiegh ◽  
Michael J. Lang ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Elderly Patients ◽  
Acute Ischemic Stroke ◽  
Mechanical Thrombectomy ◽  
Multivariate Logistic Regression Analysis ◽  
Standard Of Care ◽  
Stroke Severity ◽  
Vessel Occlusion ◽  
Younger Patients ◽  
Success Of Treatment

OBJECTIVEMechanical thrombectomy (MT) is now the standard of care for acute ischemic stroke (AIS) secondary to large-vessel occlusion, but there remains a question of whether elderly patients benefit from this procedure to the same degree as the younger populations enrolled in the seminal trials on MT. The authors compared outcomes after MT of patients 80–89 and ≥ 90 years old with AIS to those of younger patients.METHODSThe authors retrospectively analyzed records of patients undergoing MT at their institution to examine stroke severity, comorbid conditions, medical management, recanalization results, and clinical outcomes. Univariate and multivariate logistic regression analysis were used to compare patients < 80 years, 80–89 years, and ≥ 90 years old.RESULTSAll groups had similar rates of comorbid disease and tissue plasminogen activator (tPA) administration, and stroke severity did not differ significantly between groups. Elderly patients had equivalent recanalization outcomes, with similar rates of readmission, 30-day mortality, and hospital-associated complications. These patients were more likely to have poor clinical outcome on discharge, as defined by a modified Rankin Scale (mRS) score of 3–6, but this difference was not significant when controlled for stroke severity, tPA administration, and recanalization results.CONCLUSIONSOctogenarians, nonagenarians, and centenarians with AIS have similar rates of mortality, hospital readmission, and hospital-associated complications as younger patients after MT. Elderly patients also have the capacity to achieve good functional outcome after MT, but this potential is moderated by stroke severity and success of treatment.

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