Abstract WP14: Higher Aspiration Force Improves Technical Outcomes in ADAPT Thrombectomy for Ischemic Stroke

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Reda M Chalhoub ◽  
Ali M Alawieh ◽  
Clayton Korson ◽  
Mohammad Anadani ◽  
Jonathan Lena ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Lower Number ◽  
Stent Retriever ◽  
Complication Rates ◽  
Procedure Time ◽  
Aspiration Thrombectomy ◽  
Patient Demographics ◽  
Significant Difference ◽  
Catheter Size ◽  
The Impact

Introduction: Aspiration thrombectomy using the direct aspiration at first pass technique (ADAPT) has been shown to be non-inferior to stent-retriever thrombectomy in ischemic stroke trials. Favorable outcomes after ADAPT are dependent on successful recanalization and lower number of aspiration attempts. We investigated the impact of aspiration force on technical and clinical outcomes of ADAPT by modulating two underlying determinants, the aspiration catheter size and the reperfusion pump power. Methods: We performed a retrospective analysis of patients undergoing ADAPT thrombectomy between 01/2018 and 02/2019. Patient treated using ADAPT were included irrespective of age, onset to groin or whether thrombolytic therapy was administered. Patient demographics and outcomes were reviewed from patient charts and thrombectomy procedure notes. Patients were dichotomized based on the reperfusion pump used (MAX, 28.5 inHb power vs ENGINE, 29.2 inHg power) and further split into the different reperfusion catheters used. Results: This study included 194 patients who underwent ADAPT thrombectomy during the study period with mean age of 69, and of which 48% were females. Comparing patients treated with two different reperfusion pumps, ENGINE (N=73) and MAX (N=118), similar rates of favorable outcomes measured by 90-day modified Rankin score (mRS) were observed. However, patients in the ENGINE groups had significantly shorter procedure time (20 vs 27 min, p<0.05), lower number of aspiration attempts (1.9 vs 2.2 p<0.05), and low rates of rescue stent retriever therapy (14% vs 33%, p<0.05). The use of ENGINE was an independent predictor of shorter procedure time (p<0.05) and lower rates of symptomatic hemorrhage (p<0.1) compared to MAX pump. There was no significant difference in procedure time and rates of functional outcomes among patients undergoing ADAPT using different sizes of large bore catheters ACE 60, ACE68 and Jet 7. Conclusion: Success of ADAPT thrombectomy is dependent on successful aspiration of the occluding clot, and is dependent on the aspiration force. Higher aspiration forces can be achieved by increasing the power of reperfusion pump leading to better technical outcomes without increased complication rates.

Abstract WP26: Use of Balloon-guide Catheter Bridges the Difference in Technical Outcomes Between Adapt and Stent Retriever Thrombectomy for Ischemic Stroke - Insights From STAR Collaboration

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Ali M Alawieh ◽  
Reda Chalhoub ◽  
Mohammad Anadani ◽  
Maya Eid ◽  
Eyad Almallouhi ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Independent Predictor ◽  
Star Collaboration ◽  
Lower Number ◽  
Stent Retriever ◽  
Procedure Time ◽  
Aspiration Thrombectomy ◽  
Guide Catheter ◽  
Significant Difference ◽  
The Difference

Introduction: Recently completed randomized controlled trials comparing aspiration thrombectomy (ADAPT) to stent retriever thrombectomy (SRT) demonstrated similar clinical outcomes, but faster thrombectomy procedure time in the ADAPT group. This study evaluates the difference in technical outcomes between ADAPT and SRT combined with balloon-guide catheters (BGC). Methods: Patients undergoing thrombectomy for acute ischemic stroke at 12 comprehensive stroke centers in the US and Europe between 01/2013 and 12/2018 were reviewed. Data was collected retrospectively from patient charts, procedure notes, and patient follow-up in neurology clinics. Clinical endpoint was the modified Rankin score (mRS) at 90-days, and technical outcomes were procedure time, total attempts, and mTICI scores. Results: The study included 2,016 patients (mean age 69±15) who underwent stroke thrombectomy using ADAPT (46%), SRT (46%), or SRT+BGC (8%). Similar baseline characteristics were observed between the three groups, and no significant difference in mRS scores at 90-days between the three groups in univariate and multivariate analyses. Thrombectomy performed using SRT+BGC required significantly shorter procedure time compared to SRT (35 vs 61 min, p<0.001) that was comparable to ADAPT (36 min, p>0.1). However, use of SRT+BGC required significantly lower number of aspiration attempts compared to ADAPT (median 1 vs. 2, p<0.05). On multivariate linear regression, use of SRT+BGC independent predicted a significant reduction in procedure time compared to SRT (coefficient=-30.6, p<0.001), and significantly lower number of attempts compared to ADAPT (coefficient=-0.4, p=0.01). SRT+BGC was an independent predictor of higher mortality compared to ADAPT (OR=2.4, p<0.01), despite comparable rates of favorable outcomes (mRS 0-2) between the two groups. Use of SRT+BGC was not an independent predictor of symptomatic hemorrhage or complications compared to SRT or ADAPT. Conclusions: This study shows that although ADAPT allows for faster procedure time compared to SRT, the use of BGC in SRT allows for a comparable procedure time to ADAPT with similar overall rates of favorable outcome, complications and hemorrhage. Mortality was higher with the use of BGC compared to ADAPT.

Lessons Learned Over More than 500 Stroke Thrombectomies Using ADAPT With Increasing Aspiration Catheter Size

Neurosurgery ◽  
2018 ◽  
Author(s):  
Ali Alawieh ◽  
A Rano Chatterjee ◽  
Jan Vargas ◽  
M Imran Chaudry ◽  
Jonathan Lena ◽  
...  
Keyword(s):  
South Carolina ◽  
Standard Of Care ◽  
Multivariate Regression Analysis ◽  
Lessons Learned ◽  
Stent Retriever ◽  
Complication Rates ◽  
Procedure Time ◽  
University Of South Carolina ◽  
Endovascular Thrombectomy ◽  
The Impact

Abstract BACKGROUND Endovascular thrombectomy is currently the standard of care for acute ischemic stroke (AIS). Although earlier trials on endovascular thrombectomy were performed using stent retrievers, recently completed the contact aspiration vs stent retriever for successful revascularization (ASTER) and a comparison of direct aspiration versus stent retriever as a first approach (COMPASS) trials have shown the noninferiority of direct aspiration. OBJECTIVE To report the largest experience with ADAPT thrombectomy and compare the impact of advancement in reperfusion catheter technologies on outcomes. METHODS We reviewed a retrospective database of AIS patients who underwent ADAPT thrombectomy between January 2013 and November 2017 at the Medical University of South Carolina. Demographics and baseline characteristics, technical variables, and radiological and clinical outcomes were reviewed. RESULTS Among 510 patients (mean age: 67.7, 50.6% females), successful recanalization at first pass was achieved in 61.8%, and with aspiration only in 77.5%. Mean procedure time was 27.4 min, and the rate of good outcomes (mRS 0-2) at 90 d was 42.9%. The rate of recanalization with aspiration only was significantly higher, and procedure time was significantly lower in patients treated with larger catheters (ACE 064 and ACE 068) compared to smaller catheters (5 MAX and ACE, P < .05). There were no differences in complication rates or postoperative parenchymal hemorrhage across groups (P > .05); however, use of ACE 068 was an independent predictor of good outcomes at 90 d on multivariate regression analysis (odds ratio = 1.6, P < .05). CONCLUSION Refinement of ADAPT thrombectomy by incorporating reperfusion catheters with higher inner diameters and thus higher aspiration forces is associated with better outcomes, shorter procedure times, and lower likelihood of using additional devices without impacting complication rates.

scholarly journals The impact of the Covid-19 pandemic on care of women with ectopic pregnancy in a tertiary London hospital

2021 ◽  
Vol 13 (4) ◽  
pp. 395-398
Author(s):  
J.E. Gaughran ◽  
D.M. Geddes-Barton ◽  
T Cliff ◽  
F Bailey ◽  
C Ovadia ◽  
...  
Keyword(s):  
Complication Rates ◽  
Telephone Triage ◽  
Management Options ◽  
Triage System ◽  
Patient Demographics ◽  
Significant Difference ◽  
Diagnosis Rate ◽  
Ectopic Pregnancies ◽  
Operative Findings ◽  
The Impact

Background: In response to the COVID-19 pandemic, a central London tertiary referral hospital’s nurse-led Early Pregnancy & Acute Gynaecology Unit (EPAGU) suspended its walk-in service in favour of a telephone triage system with scheduled appointments. Objective: To assess if the pandemic and this adaptation to clinical services had an impact on the presentation, management and complication rate of ectopic pregnancies. Materials and Methods: A retrospective review was performed of ectopic pregnancies diagnosed in the EPAGU between 5th of March 2020 – 15th of July 2020 (pandemic) and 5th of March 2019 – 15th of July 2019 (pre-pandemic). Main outcome measures: Ultrasound findings, patient demographics, serum hCG concentrations, operative findings and complications. Results: There was a 36% reduction in attendances to the unit during the pandemic. Allowing for this, there was no significant difference in the diagnosis rate between the two periods. There was no significant difference in the gestation at diagnosis, serum hCG concentration or volume of mass at presentation. There was also no significant difference in rate of surgical intervention or complications including rupture of fallopian tube, haemoperitoneum or need for blood transfusion. Conclusion: This study suggests this is a safe means of caring for women with ectopic pregnancies which does not limit management options nor lead to higher complication rates. What is new: Other EPAGUs may choose to adopt a telephone triage system with reassurance of its safety.

scholarly journals Efficacy of beveled tip aspiration catheter in mechanical thrombectomy for acute ischemic stroke

2020 ◽  
pp. neurintsurg-2020-016695
Author(s):  
Jan Vargas ◽  
Jonathan Blalock ◽  
Anand Venkatraman ◽  
Vania Anagnostakou ◽  
Rrobert M King ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Cerebral Infarction ◽  
Acute Ischemic Stroke ◽  
Retrospective Analysis ◽  
Mechanical Thrombectomy ◽  
Modified Rankin Scale ◽  
Aspiration Thrombectomy ◽  
Patient Demographics ◽  
Significant Difference ◽  
Tissue Plasminogen

BackgroundDirect aspiration thrombectomy techniques use large bore aspiration catheters for mechanical thrombectomy. Several aspiration catheters are now available. We report a bench top exploration of a novel beveled tip catheter and our experience in treating large vessel occlusions (LVOs) using next-generation aspiration catheters.MethodsA retrospective analysis from a prospectively maintained database comparing the bevel shaped tip aspiration catheter versus non-beveled tip catheters was performed. Patient demographics, periprocedural metrics, and discharge and 90-day modified Rankin Scale (mRS) scores were collected. Patients were divided into two groups based on which aspiration catheter was used.ResultsOur data showed no significant difference in age, gender, IV tissue plasminogen activator administration, admission NIH Stroke Scale score, baseline mRS, or LVO location between the beveled tip and flat tip groups. With the beveled tip, Thrombolysis in Cerebral Infarction (TICI) 2C or better recanalization was more frequent overall (93.2% vs 74.2%, p=0.017), stent retriever usage was lower (9.1% vs 29%, p=0.024), and patients had lower mRS on discharge (median 3 vs 4, p<0.001) and at 90 days (median 2 vs 4, p=0.008).ConclusionPatients who underwent mechanical thrombectomy with the beveled tip catheter had a higher proportion of TICI 2C or better and had a significantly lower mRS score on discharge and at 90 days.

Abstract W P5: Improvements in Procedural Times in the Evolution of Endovascular Treatment of Acute Ischemic Stroke

Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Don Frei ◽  
Aman Patel ◽  
Rishi Gupta ◽  
Richard Bellon ◽  
Daniel Huddle ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Treatment Method ◽  
Case Review ◽  
Procedure Time ◽  
Patient Demographics ◽  
Timi Score ◽  
Catheter Size ◽  
Review Study ◽  
Average Procedure Time

Purpose: Endovascular therapies are increasingly used in the revascularization of acute ischemic stroke from large vessel occlusions. There have been many design improvement of these devices from their initial implementation to the recent newer generations of devices. The goal of this case review study was to assess if there was corresponding improvement in procedural times over the course of the evolution of these devices. Methods: We pooled prospective (Pivotal, PICS, START) and retrospective/registry (POST, RetroSTART, Speed 054) Penumbra trials. All obtained treatment at <8 hours. Data was collected and analyzed. Tested covariates (patient demographics, procedure time points) were considered in the multivariable model. Results: Among 1028 pooled subjects, 93 received treatment outside the 8 hour window, and an additional 8 subjects were excluded due to missing key data. The remaining 927 patients had a mean age of 65.9 years (SD=15.1) and 51.7% (478/925) were female. At admission, the average NIHSS was 17.4 (SD=6.2) and 100% of patients had a TIMI score of 0 or 1 (919/919). Across the Penumbra trials, the time from PS on to off and overall procedure length have shown a significant decrease over time (p<0.0001, p=0.0001 ). From 2006 to 2011, the time from PS on to off decreased an average of 5 minutes per year. The reduction in time from PS on to off is also significantly associated with the increased catheter size (p=0.0001). Similarly, the average procedure time decreased significantly with the newer catheters from 99.9 minutes (SD=46.7) using the 026 catheter to 65.6 minutes (SD=36.3) using the 054 catheter (p<0.0001). Ultimately, shorter procedure time was a significant predictor of good outcome, measured by mRS score of 0 or 1 (p=0.021). Conclusion: These results suggest that the implementation of the newer and larger Penumbra catheters provides a quicker and more effective treatment method for treating acute ischemic stroke.

scholarly journals Efficacy of Mechanical Thrombectomy using Penumbra ACETM Aspiration Catheter Compared to Stent Retriever SolitaireTM FR in Patients with Acute Ischemic Stroke

2021 ◽  
Vol 11 (4) ◽  
pp. 504
Author(s):  
Dalibor Sila ◽  
Markus Lenski ◽  
Maria Vojtková ◽  
Mustafa Elgharbawy ◽  
František Charvát ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Clinical Outcome ◽  
Acute Ischemic Stroke ◽  
Clinical Outcomes ◽  
Mechanical Thrombectomy ◽  
Binary Logistic Regression ◽  
Stent Retriever ◽  
Good Clinical Outcome ◽  
Significant Difference ◽  
Aspiration Technique

Background: Mechanical thrombectomy is the standard therapy in patients with acute ischemic stroke (AIS). The primary aim of our study was to compare the procedural efficacy of the direct aspiration technique, using Penumbra ACETM aspiration catheter, and the stent retriever technique, with a SolitaireTM FR stent. Secondarily, we investigated treatment-dependent and treatment-independent factors that predict a good clinical outcome. Methods: We analyzed our series of mechanical thrombectomies using a SolitaireTM FR stent and a Penumbra ACETM catheter. The clinical and radiographic data of 76 patients were retrospectively reviewed. Using binary logistic regression, we looked for the predictors of a good clinical outcome. Results: In the Penumbra ACETM group we achieved significantly higher rates of complete vessel recanalization with lower device passage counts, shorter recanalization times, shorter procedure times and shorter fluoroscopy times (p < 0.001) compared to the SolitaireTM FR group. We observed no significant difference in good clinical outcomes (52.4% vs. 56.4%, p = 0.756). Predictors of a good clinical outcome were lower initial NIHSS scores, pial arterial collateralization on admission head CT angiography scan, shorter recanalization times and device passage counts. Conclusions: The aspiration technique using Penumbra ACETM catheter is comparable to the stent retriever technique with SolitaireTM FR regarding clinical outcomes.

scholarly journals Absence of Association between Preoperative Estimated Glomerular Filtration Rates and Postoperative Outcomes following Elective Gastrointestinal Surgeries: A Prospective Cohort Study

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Sivesh K. Kamarajah ◽  
Behrad Barmayehvar ◽  
Mustafa Sowida ◽  
Amirul Adlan ◽  
Christina Reihill ◽  
...  
Keyword(s):  
Risk Stratification ◽  
Glomerular Filtration ◽  
Elective Surgery ◽  
Gastrointestinal Surgery ◽  
Major Complication ◽  
Postoperative Outcomes ◽  
Queen Elizabeth Hospital ◽  
Complication Rates ◽  
Significant Difference ◽  
The Impact

Background. Preoperative risk stratification and optimising care of patients undergoing elective surgery are important to reduce the risk of postoperative outcomes. Renal dysfunction is becoming increasingly prevalent, but its impact on patients undergoing elective gastrointestinal surgery is unknown although much evidence is available for cardiac surgery. This study aimed to investigate the impact of preoperative estimated glomerular filtration rate (eGFR) and postoperative outcomes in patients undergoing elective gastrointestinal surgeries. Methods. This prospective study included consecutive adult patients undergoing elective gastrointestinal surgeries attending preassessment screening (PAS) clinics at the Queen Elizabeth Hospital Birmingham (QEHB) between July and August 2016. Primary outcome measure was 30-day overall complication rates and secondary outcomes were grade of complications, 30-day readmission rates, and postoperative care setting. Results. This study included 370 patients, of which 11% (41/370) had eGFR of <60 ml/min/1.73 m2. Patients with eGFR < 60 ml/min/1.73 m2 were more likely to have ASA grade 3/4 (p<0.001) and >2 comorbidities (p<0.001). Overall complication rates were 15% (54/370), with no significant difference in overall (p=0.644) and major complication rates (p=0.831) between both groups. In adjusted models, only surgery grade was predictive of overall complications. Preoperative eGFR did not impact on overall complications (HR: 0.89, 95% CI: 0.45–1.54; p=0.2). Conclusions. Preoperative eGFR does not appear to impact on postoperative complications in patients undergoing elective gastrointestinal surgeries, even when stratified by surgery grade. These findings will help preassessment clinics in risk stratification and optimisation of perioperative care of patients.

Baerveldt shunt surgery versus combined Baerveldt shunt and phacoemulsification: a prospective comparative study

2017 ◽  
Vol 102 (9) ◽  
pp. 1248-1253 ◽  
Author(s):  
Mohamad El Wardani ◽  
Ciara Bergin ◽  
Kenza Bradly ◽  
Eamon Sharkawi
Keyword(s):  
Complication Rates ◽  
Failure Rates ◽  
Shunt Surgery ◽  
Patient Demographics ◽  
Aqueous Shunt ◽  
Included Patient ◽  
Significant Difference ◽  
Negative Effect ◽  
Prospective Comparative Study ◽  
Baerveldt Tube

AimTo examine the efficacy and safety of Baerveldt tube (BT) implantation compared with combined phacoemulsification and Baerveldt tube (PBT) implantation in patients with refractory glaucoma.MethodsSeventy-six eyes of 76 patients were enrolled, 38 pseudophakic eyes underwent BT implantation alone and 38 phakic eyes underwent the BT implantation combined with phacoemulsification. Groups were matched for preoperative intraocular pressure (IOP) and number of glaucoma medications. Preoperative and postoperative measures recorded included patient demographics, visual acuity (VA), IOP, number of antiglaucoma medications and all complications. Patients were followed up for a minimum of 36 months. Failure was defined as: inadequate IOP control (IOP≤5 mm Hg/>21 mm Hg/<20% reduction from baseline, reoperation for glaucoma, loss of light perception vision, or removal of the implant).ResultsThere was a significant difference in failure rates between groups at 36 months (PBT 37% vs BT 15%, P=0.02). There was no significant difference for PBT versus BT in preoperative baseline ocular characteristics. At 36 months: median IOP=14 mm Hg vs 12 mm Hg, P=0.04; mean number of antiglaucomatous medications=1.7 vs 1.3, P=0.61; median VA=0.8 vs 0.7, P=0.44. Postoperative complication rates were similar in both groups (n=5 vs 5; 13% vs 13%).ConclusionsFailure rates were significantly greater in the PBT group at 3 years. Median IOP was also significantly higher in the PBT group. These results suggest that combining phacoemulsification with aqueous shunt surgery may have a negative effect on long-term shunt bleb survival.

The Impact of Medical Comorbidities on Patient Satisfaction in Chronic Rhinosinusitis

2021 ◽  
pp. 000348942110157
Author(s):  
Amarbir S. Gill ◽  
Joshua Hwang ◽  
Angela M. Beliveau ◽  
Jeremiah A. Alt ◽  
Edward Bradley Strong ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Hearing Impairment ◽  
Chronic Rhinosinusitis ◽  
Medical Comorbidities ◽  
Patient Demographics ◽  
Significant Difference ◽  
Comorbidity Index ◽  
The Mean ◽  
Therapy Compliance ◽  
The Impact

Background: Patient satisfaction has a significant bearing on medical therapy compliance and patient outcomes. The purpose of this study was to (1) describe patient satisfaction, as characterized by the Patient Satisfaction Questionnaire-18 (PSQ-18), in the care of patients with chronic rhinosinusitis (CRS) and (2) analyze the impact of comorbidities on satisfaction using the functional comorbidity index (FCI). Methods: Patient demographics, disease severity measures, and PSQ-18 scores for patients with CRS presenting to a tertiary rhinology clinic between November 2019 and April 2020 were collected and analyzed. FCI was calculated retrospectively using the electronic medical record; individual comorbidities were tabulated. Spearman’s correlations followed by multivariate regression was used to assess the relationship between medical comorbidities and PSQ-18. Results: Sixty-nine patients met criteria for analysis. There were no significant differences in age, gender, and Sinonasal Outcomes Test-22 scores between CRS patients with (CRSwNP) and without (CRSsNP) nasal polyps. There was no significant difference in the mean FCI for patients with CRSwNP versus CRSsNP (5.1 and 4.3, respectively) ( P = .843). Similarly, there was no significant difference in the mean sum PSQ-18 score (78/100 in both) between these cohorts ( P = .148). The mean sum PSQ-18 score was not significantly associated with anxiety ( P = .728), depression ( P = .624), or FCI ( P = .282), but was significantly associated with hearing impairment ( P < .001). Conclusion: Patient satisfaction in the care of CRS is generally high with a diagnosis of comorbid hearing impairment demonstrating a negative association with satisfaction in this cohort.

Barriers to Providing Prehospital Care to Ischemic Stroke Patients: Predictors and Impact on Care

2018 ◽  
Vol 33 (5) ◽  
pp. 501-507 ◽  
Author(s):  
Timmy Li ◽  
Jeremy T. Cushman ◽  
Manish N. Shah ◽  
Adam G. Kelly ◽  
David Q. Rich ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Barriers To Care ◽  
Prehospital Care ◽  
Heart Association ◽  
Living Alone ◽  
Stroke Patients ◽  
Publication Type ◽  
Stroke Treatment ◽  
Significant Difference ◽  
The Impact

AbstractIntroductionIschemic stroke treatment is time-sensitive, and barriers to providing prehospital care encountered by Emergency Medical Services (EMS) providers have been under-studied.Hypothesis/ProblemThis study described barriers to providing prehospital care, identified predictors of these barriers, and assessed the impact of these barriers on EMS on-scene time and administration of tissue plasminogen activator (tPA) in the emergency department (ED).MethodsA retrospective cohort study was performed using the Get With The Guidelines-Stroke (GWTG-S; American Heart Association [AHA]; Dallas, Texas USA) registry at two hospitals to identify ischemic stroke patients arriving by EMS. Variables were abstracted from prehospital and hospital medical records and merged with registry data. Barriers to care were grouped into themes. Logistic regression was used to identify predictors of barriers to care, and bi-variate tests were used to assess differences in EMS on-scene time and the proportion of patients receiving tPA between patients with and without barriers.ResultsBarriers to providing prehospital care were documented for 15.5% of patients: 29.6% related to access, 26.7% communication, 23.0% extrication and transportation, 20.0% refusal, and 14.1% assessment/management. Non-white and non-black race (OR: 3.69; 95% CI, 1.63-8.36) and living alone (OR: 1.53; 95% CI, 1.05-2.23) were associated with greater odds of barriers to providing care. The EMS on-scene time was ≥15 minutes for 70.4% of patients who had a barrier to care, compared with 49.0% of patients who did not (P<.001). There was no significant difference in the proportion of patients who were administered tPA between those with and without barriers to care (14.1% vs 19.2%; P=.159).ConclusionsBarriers to providing prehospital care were documented for a sizable proportion of ischemic stroke patients, with the majority related to patient access and communication, and occurred more frequently among non-white and non-black patients and those living alone. Although EMS on-scene time was longer for patients with barriers to care, the proportion of patients receiving tPA in the ED did not differ.LiT, CushmanJT, ShahMN, KellyAG, RichDQ, JonesCMC. Barriers to providing prehospital care to ischemic stroke patients: predictors and impact on care. Prehosp Disaster Med.2018;33(5):501–507.

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