scholarly journals Outcomes of hospitalizations with atrial fibrillation-flutter on a weekday versus weekend: an analysis from a 2014 nationwide inpatient sample

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6211 ◽  
Author(s):  
Dinesh C. Voruganti ◽  
Ghanshyam Palamaner Subash Shantha ◽  
Abhishek Deshmukh ◽  
Michael C. Giudici
Keyword(s):  
Atrial Fibrillation ◽  
Hospital Mortality ◽  
Nationwide Inpatient Sample ◽  
Length Of Hospital Stay ◽  
Patient Characteristics ◽  
International Classification Of Diseases ◽  
Primary Diagnosis ◽  
Significant Difference ◽  
Poor Outcomes ◽  
Atrial Fibrillation And Flutter

Background Patients with atrial fibrillation-flutter (AF) admitted on the weekends were initially reported to have poor outcomes. The primary purpose of this study is to re-evaluate the outcomes for weekend versus weekday AF hospitalization using the 2014 Nationwide Inpatient Sample (NIS). Methods Included hospitalizations were aged above 18 years. The hospitalizations with AF were identified using the international classification of diseases 9 (ICD-9) codes (427.31, 427.32). In-hospital mortality, length of stay (LOS), other co-morbidities, cardioversion procedures, and time to cardioversion were recorded. All analysis was performed using SAS 9.4 statistical software (Cary, North Carolina). Results A total of 453,505 hospitalizations with atrial fibrillation and flutter as primary discharge diagnosis were identified. Among the total hospitalizations with a primary diagnosis of AF, 20.3% were admitted on the weekend. Among the weekend hospitalizations, 0.19% died in hospital compared to 0.74% among those admitted during the week. After adjusting for patient characteristics, hospital characteristics and disease severity, the adjusted odds for in-hospital mortality were not significantly different for weekend vs. weekday hospitalizations (OR = 0.91, 95% CI [0.77–1.11]; p = 0.33). The weekend admissions were associated with significantly lower odds of cardioversion procedures (OR = 0.72, 95% CI [0.69–0.76], P < 0.0001), lower cost of hospitalization (USD 8265.8 on weekends vs. USD 8966.5 on the weekdays, P < 0.001), slightly lower rate of anticoagulation (17.09% on the weekends vs. 18.73% on the weekdays. P < 0.0001), and slightly increased time to cardioversion (1.94 days on the weekend vs. 1.73 days on weekdays, P < 0.0005). The mean length of hospital stay (LOS) was statistically not different in both groups: (3.49 days ± 3.70 (SD) in the weekend group vs. 3.47 days ± 3.50 (SD) in the weekday group, P = 0.42) Discussion The weekend AF hospitalizations did not have a clinically significant difference in mortality and LOS compared to those admitted on a weekday. However, the use of cardioversion procedures and cost of hospitalization was significantly lower on the weekends.

The Medico-economic Impacts of Marijuana Use on the Outcomes and In-hospital Mortality in Patients with Atrial Fibrillation – Nationwide Database study

2021 ◽  
Vol 4 (11) ◽  
pp. 01-05
Author(s):  
Hammam Shereef
Keyword(s):  
Atrial Fibrillation ◽  
Hospital Mortality ◽  
Length Of Hospital Stay ◽  
Marijuana Use ◽  
International Classification Of Diseases ◽  
Atrial Arrhythmias ◽  
National Inpatient Sample ◽  
Hospitalization Costs ◽  
Classification Of Diseases ◽  
Medico Economic

Introduction Cannabinoid users are at high risk of developing atrial arrhythmias. We sought to investigate the outcomes and the economic impact of marijuana use on patients with atrial fibrillation utilizing the National Inpatient Sample. Materials and Methods Patients with atrial fibrillation were identified in the National Inpatient Sample (NIS) database between 2012 and 2014 using the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM), who subsequently were divided into two groups, those with and without marijuana smoking. The primary outcome was all-cause in-hospital mortality in the two groups. Secondary outcomes were in-hospital morbidities, required procedures and complications. We also evaluated the length of hospital stay and the cost of hospitalization. Logistic regression model was performed to address potential confounding factors. Results: The marijuana-users group had no significant increase of in-hospital mortality (OR: 1.24; 95% CI: 0.51 - 3.01, p = 0.632). However, marijuana users were predominantly younger males and less likely to undergo cardiac surgery (OR: 0.54, 95% CI 0.37 - 0.78, p = 0.001). Moreover, marijuana users are more likely to have a lower cost of hospitalization when compared to non-users ($28,916 vs $32,303, p = 0.001). Conclusion: Cannabinoid use was not associated with an increase in mortality among patients admitted with atrial fibrillation. However, marijuana users were younger, had fewer comorbidities, and cardiac surgeries with associated lower hospitalization costs. Admittedly, given the growing popularity of these products, further large prospective studies are needed to investigate the safety and evaluate different integral associations of cannabis use with worse cardiac outcomes in atrial arrhythmias patients, particularly those with atrial fibrillation.

Abstract 13351: Association of Atrial Fibrillation With In-hospital Mortality Among Patients With Takotsubo Cardiomyopathy

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Qiying Dai ◽  
Abhishek Bose ◽  
Pengyang Li ◽  
PENG CAI ◽  
Douglas Laidlaw
Keyword(s):  
Atrial Fibrillation ◽  
Logistic Regression ◽  
Mortality Rate ◽  
Propensity Score ◽  
Hospital Mortality ◽  
Propensity Score Matching ◽  
Mortality Rates ◽  
Primary Diagnosis ◽  
Propensity Score Matching Analysis ◽  
Significant Difference

Introduction: Takotsubo cardiomyopathy (TC), characterized by transient left ventricular dysfunction, is known to be precipitated by sudden physical or emotional stress. Atrial fibrillation (AF) is a common arrhythmia and its presence increases mortality in patients with chronic underlying diseases. Furthermore, multiple studies have suggested that in TC patients, underlying AF correlates with a higher in-hospital mortality. However, these studies were constrained by either a disproportionate percentage of AF patients or lack of risk factor matching. To systematically explore the association between TC and AF, we decided to perform a propensity score matching analysis. Methods: We performed a retrospective cohort analysis using the ICD-10 codes for a primary diagnosis of TC from the 2016 National Inpatient Sample. To adjust for underlying risk factors a multivariable logistic regression model was employed followed by a propensity score matching analysis for the AF group and the non-AF group. A similar analysis method was followed for the subset of patients with paroxysmal AF. In-hospital mortality rates were compared between the two groups. Results: Out of the total 3139 patients with a primary diagnosis of TC, 433 (13.7%) had AF and 243 (7.7%) had paroxysmal AF. In the unmatched group, patients with AF appeared to be older (74.7 vs. 65.3 years, P<0.001) and more likely to have comorbidities like diabetes mellitus (24.0% vs 19.2%, P=0.024), chronic kidney disease (15.7% vs 7.6%, P<0.001) and obstructive sleep apnea (8.8% vs 4.9%, P=0.002). On multivariable logistic regression, in-hospital mortality was higher in the AF group (3.9% vs 1.3%, P< 0.001). However, after propensity score matching, there was no significant difference in the mortality rate between the two groups (3.7% vs 1.9%, P=0.082). Similarly, on logistic regression followed by propensity matching for patients with paroxysmal AF, no significant difference was noted for in-hospital mortality rates (3.3% vs 1.3%, P=0.112). Conclusions: In patients with TC, the presence of underlying AF had no effect on the in-hospital mortality rate.

scholarly journals Total numbers and in-hospital mortality of patients with myocardial infarction in Germany during the FIFA soccer world cup 2014

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Karsten Keller ◽  
Lukas Hobohm ◽  
Volker H. Schmitt ◽  
Martin Engelhardt ◽  
Philip Wenzel ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Mortality Rate ◽  
Hospital Mortality ◽  
Environmental Stress ◽  
Nationwide Inpatient Sample ◽  
Hospital Admissions ◽  
Patient Characteristics ◽  
World Cup ◽  
National Team ◽  
Comparison Period

AbstractEnvironmental stress like important soccer events can induce excitation, stress and anger. We aimed to investigate (i) whether the FIFA soccer world cup (WC) 2014 and (ii) whether the soccer games of the German national team had an impact on total numbers and in-hospital mortality of patients with myocardial infarction (MI) in Germany. We analyzed data of MI inpatients of the German nationwide inpatient sample (2013–2015). Patients admitted due to MI during FIFA WC 2014 (12th June–13th July2014) were compared to those during the same period 2013 and 2015 (12th June–13th July). Total number of MI patients was higher during WC 2014 than in the comparison-period 2013 (18,479 vs.18,089, P < 0.001) and 2015 (18,479 vs.17,794, P < 0.001). WC was independently associated with higher MI numbers (2014 vs. 2013: OR 1.04 [95% CI 1.01–1.07]; 2014 vs. 2015: OR 1.07 [95% CI 1.04–1.10], P < 0.001). Patient characteristics and in-hospital mortality rate (8.3% vs. 8.3% vs. 8.4%) were similar during periods. In-hospital mortality rate was not affected by games of the German national team (8.9% vs. 8.1%, P = 0.110). However, we observed an increase regarding in-hospital mortality from 7.9 to 9.3% before to 12.0% at final-match-day. Number of hospital admissions due to MI in Germany was 3.7% higher during WC 2014 than during the same 31-day period 2015. While in-hospital mortality was not affected by the WC, the in-hospital mortality was highest at WC final.

scholarly journals 48. Association of Rapid Pathogen Identification and Pharmacist Intervention on Time to Optimal Antimicrobial Therapy for Bloodstream Infections at Two Community Hospitals

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S47-S47
Author(s):  
Bryant M Froberg ◽  
Nicholas Torney
Keyword(s):  
Blood Culture ◽  
Hospital Mortality ◽  
Positive Blood Culture ◽  
Antimicrobial Therapy ◽  
Length Of Hospital Stay ◽  
Bloodstream Infections ◽  
Pharmacist Intervention ◽  
Pathogen Identification ◽  
Community Hospitals ◽  
Significant Difference

Abstract Background As many as 1 in 3 patients with bloodstream infections at community hospitals receive inappropriate empiric antimicrobial therapy. Studies have shown that the coupling of real-time intervention with rapid pathogen identification improves patient outcomes and decreases health-system costs at large, tertiary academic centers. The aim of this study was to assess if similar outcomes could be obtained with the implementation of real-time pharmacist intervention to rapid pathogen identification at two smaller, rural community hospitals. Methods This was a pre-post implementation study that occurred from September of 2019 to March 2020. This study included patients ≥18 years of age admitted with one positive blood culture. Patients were excluded if they were pregnant, had a polymicrobial blood culture, known culture prior to admission, hospice consulted prior to admission, expired prior to positive blood culture, or transferred to another hospital within 24 hours of a positive blood culture. Endpoints of patients prior to intervention were compared to patients post-implementation. The primary endpoint was time to optimal antimicrobial therapy. Secondary endpoints included time to effective antimicrobial therapy, in-hospital mortality, length of hospital stay, and overall cost of hospitalization. Results Of 212 patients screened, 88 patients were included with 44 patients in each group. Both groups were similar in terms of comorbidities, infection source, and causative microbial. No significant difference was seen in the mean time to optimal antimicrobial therapy (27.3±35.5 hr vs 19.4± 30 hr, p=0.265). Patients in the post-implementation group had a significantly higher mean hospitalization cost ($24,638.87± $11,080.91 vs $32,722.07±$13,076.73, p=0.013). There was no significant difference in time to effective antimicrobial therapy, in-hospital mortality, or length of hospital stay. Conclusion There were no between-group differences in the primary outcome of time to optimal therapy, with a higher mean hospitalization cost after implementation. These results suggest further antimicrobial stewardship interventions are needed, along with larger studies conducted in the community hospital settings. Disclosures All Authors: No reported disclosures

Abstract 50: Atrial Fibrillation is Associated with Higher Stroke Rates in Takotsubo Cardiomyopathy

2017 ◽  
Vol 121 (suppl_1) ◽  
Author(s):  
Akintunde M Akinjero ◽  
Oluwole Adegbala ◽  
Nike E Akinjero ◽  
Eseosa Edo-Osagie ◽  
Tomi Akinyemiju
Keyword(s):  
Atrial Fibrillation ◽  
Hospital Mortality ◽  
Takotsubo Cardiomyopathy ◽  
Nationwide Inpatient Sample ◽  
Coronary Intervention ◽  
Independent Effect ◽  
Adjusted Risk ◽  
Representative Study ◽  
Percutaneous Coronary ◽  
Nationally Representative

Background: The prognosis of Takotsubo Cardiomyopathy (TTCM) is worse than in the general population. It is unclear how atrial fibrillation (AF) impacts this prognosis. We sought to evaluate the effect of concurrent AF on outcomes in patients with TTCM. Methods: We used the Healthcare Cost and Utilization Project (HCUP) Nationwide Inpatient Sample (NIS) to extract all hospitalizations between 2007 and 2011 with concurrent diagnosis of AF and TTCM. The ICD-9 CM codes for AF and TTCM were used. We compared patients admitted for TTCM who had coexisting AF to those without. We excluded patients below the age of 18 as well as those diagnosed with TTCM who later underwent percutaneous coronary intervention (PCI). Multivariate regression was used to assess the independent effect of coexisting AF on clinical outcomes (length of stay (LOS), stroke, and in-hospital mortality). Results: A total of 13,136 TTCM patients were studied. Of these, 2,083 (15.86%) had coexisting AF. Compared with those without, TTCM patients with coexisting AF had a greater multivariate-adjusted risk for increased stroke rate (aOR=1.66, 95% CI=1.27-2.18, Table 1). We found no significant association with in-hospital mortality (aOR=1.21, 95% CI=0.96-1.52) or LOS (aOR=1.21, 95% CI= 0.83-1.58). Conclusions: In this large, nationally representative study, we found higher stroke rates in patients with coexisting AF and TTCM. Our findings suggest the need for closer monitoring during hospitalization.

Abstract 16199: Trend of Hypertensive Emergencies in Atrial Fibrillation Hospitalization; National Estimate

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Mae'n Al-Dabbas ◽  
Jay Shah ◽  
devina adalja ◽  
Archana Gundabolu ◽  
Ashish Kumar ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
International Classification Of Diseases ◽  
Primary Diagnosis ◽  
Hypertensive Emergency ◽  
P Value ◽  
National Inpatient Sample ◽  
Common Risk Factor ◽  
The Past ◽  
Classification Of Diseases

Introduction: Hypertension has been reported as one of the most common risk factor causing atrial fibrillation (AF). Also, hypertension is associated with more persistent AF. However the epidemiology for incidence of hypertensive emergency in AF hospitalization is not well documented. Hypothesis: We hypothesize that frequency of hypertensive emergency has been increasingly associated with Atrial fibrillation. Methods: National inpatient sample from 2005 -2015 was used for the present analysis. Patients over 18 years, with AF as the primary diagnosis were identified using International Classification of Diseases, Ninth Revision-Clinical Modification (ICD-9-CM) code, 427.31. Patients with hypertensive emergency were identified using ICD-9-CM code. 401.0, 402.0, 403.0, 404.0, 405.0. Results: A total of 4,988,269 AF patients over 18 years of age were included in the present analysis. Of these hospitalization 49,423 had hypertensive emergency during hospitalizations and the rest 4,938,846 had no hypertensive emergency. There was a monotonic increase in the trend of rates of hypertensive emergency per 1000 AF hospitalizations, from 2005 - 2015. (P value <0.001) [Figure 1]. Conclusion: There has been a significant increase in the rates of hypertensive emergency among AF hospitalization, over the past decade. Further research is needed to investigate the reason for this increased trend.

Abstract 514: Sex-Related Disparities in Outcomes After Myocardial Infarction Among Patients With Atrial Fibrillation: Evidence From a Nationwide Study

2017 ◽  
Vol 37 (suppl_1) ◽  
Author(s):  
Akintunde M Akinjero ◽  
Oluwole Adegbala ◽  
Tomi Akinyemiju
Keyword(s):  
United States ◽  
Myocardial Infarction ◽  
Atrial Fibrillation ◽  
Hospital Mortality ◽  
Female Gender ◽  
The United States ◽  
Nationwide Study ◽  
Adjusted Risk ◽  
Targeted Interventions ◽  
Significant Difference

Background: The overall mortality rate after acute myocardial infarction (AMI) is falling in the United States. However, outcomes remain unacceptably worse in females compared to males. It is not known how coexisting atrial fibrillation (AF) modify outcomes among the sexes. We sought to examine the association of sex with clinical characteristics and outcomes after AMI among patients with AF. Methods: We accessed the Healthcare Cost and Utilization Project (HCUP) Nationwide Inpatient Sample (NIS), to extract all hospitalizations between 2007 and 2011 for patients above 18yrs with principal diagnosis of AMI and coexisting diagnosis of AF using ICD 9-CM codes. The NIS represents the largest all-payer hospitalization database in the United States, sampling approximately 8 million hospitalizations per year. We also extracted outcomes data (length of stay (LOS), stroke and in-hospital mortality) after AMI among Patients with AF. We then compared sex differences. Univariate and Multivariate analysis were conducted to determine the presence of statistically significant difference in outcomes between men and women. Results: A total of 184,584 AF patients with AMI were sampled, consisting of 46.82% (86,420) women and 53.13% (98,164) men. Compared with men, women with AF and AMI had a greater multivariate-adjusted risk for increased stroke rate (aOR=1.51, 95% CI=1.45-1.59), and higher in-hospital mortality (aOR=1.12, 95% CI=1.09-1.15). However, female gender was not significantly associated with longer LOS (aOR=-0.22, 95% CI= -0.29-(-0.14). Conclusion: In this large nationwide study of a population-based cohort, women experienced worse outcomes after AMI among patients with AF. They had higher in-hospital mortality and increased stroke rates. Our findings highlight the need for targeted interventions to improve these disparities in outcomes.

Abstract 14682: Impact of Atrial Fibrillation in Aortic Stenosis Patients: Insights From the United States Readmissions Database

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Shashank Shekhar ◽  
Anas M Saad ◽  
Toshiaki Isogai ◽  
Mohamed M Gad ◽  
Keerat Ahuja ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Aortic Stenosis ◽  
Hospital Mortality ◽  
Large Scale ◽  
International Classification Of Diseases ◽  
The United States ◽  
Large Scale Data ◽  
Classification Of Diseases

Introduction: Even though atrial fibrillation (AF) is present in >30% of patients with aortic stenosis (AS), it is not typically included in the decision-making algorithm for the timing or need for aortic valve replacement (AVR), either by transcatheter (TAVR) or surgical (SAVR) approaches. Large scale data on how AF affects outcomes of AS patients remain scarce. Methods: From the Nationwide Readmissions Database (NRD), we retrospectively identified AS patients aged ≥18years, with and without AF admitted between January and June in 2016 and 2017 (to allow for a six month follow up), using the International Classification of Diseases-10 th revision codes. Multivariable logistic regression was performed to examine the predictors of in-hospital mortality during index hospitalization. In-hospital complications and 6 month in-hospital mortality during any readmission after being discharged alive were compared in patients with and without AF, for patients undergoing TAVR, SAVR or no-AVR. Results: We identified 403,089 AS patients, of which 41% had AF. Patients with AF were older (median age in years: 83 vs. 79) and were more frequently females (52% vs. 48%; p<0.001). Table summarizes outcomes of AS patients with and without AF. TAVR in patients with AF was associated with higher in-hospital mortality and follow-up mortality as compared to patients without AF. Although AF did not influence in-hospital mortality in SAVR population, follow-up mortality was also significantly higher after SAVR in patients with AF compared to patients without AF. For patients not undergoing AVR, in-hospital and follow-up mortality were higher in AF population compared to no AF and was higher than patients undergoing AVR (Table). Conclusions: AF is associated with worse outcomes in patients with AS irrespective of treatment (TAVR, SAVR or no-AVR). More studies are needed to understand the implications of AF in AS population and whether earlier treatment of AS in patients with AF can improve outcomes.

Abstract WP380: Thyrotoxicosis is Associated With Worse In-Hospital Mortality in Patients With Ischemic Stroke

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Sakiru O Isa ◽  
Olajide Buhari ◽  
Hameem Changezi
Keyword(s):  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Length Of Hospital Stay ◽  
The Body ◽  
Significant Difference ◽  
History Of ◽  
Group 3 ◽  
Group 2 ◽  
Time Of Presentation ◽  
Group 1

Introduction: Hyperthyroidism increases the basal metabolic rate and affects most systems in the body. Patients with hyperthyroidism have been shown to have a higher incidence of ischemic stroke. There is a paucity of information regarding its effects on the short-term outcomes of patients admitted with ischemic stroke. Hypothesis: Hyperthyroidism is associated with worse in-hospital outcomes in patients admitted for ischemic stroke. Methods: We queried the National Inpatient Sample to identify adult patients(aged 18 and above) admitted for ischemic stroke between January 2011 and December 2014. We compared those with a history of hyperthyroidism (group 1) and thyrotoxicosis on admission (group 2) with the rest of the patients (group 3). The main outcome was in-hospital mortality. Secondary outcomes included the length of hospital stay and cost of hospitalization. We used the logistic regression model and adjusted for baseline characteristics and co-morbidities. Results: There were 643,786 patients in the study, 0.44% had a history of hyperthyroidism, and 0.01% had thyrotoxicosis at the time of presentation. The odd of mortality in group 1 compared to group 3 was 0.89, 95% CI 0.75-1.05, p=0.16 while in group 2 compared to group 3, it was 2.42, 95% CI 1.29-4.52, p<0.006. The mean length of stay was also longer in group 2 with a mean difference of 8.06, 95% CI 4.74 - 11.39, p<0.0001. Conclusion: From the study, there was no significant difference in in-hospital mortality between patients with previously diagnosed hyperthyroidism and those without diagnosed hyperthyroidism. Patients who had thyrotoxicosis on admission, on the other hand, had worse outcomes compared to patients without thyrotoxicosis.

Abstract 145: Transferred Ischemic Stroke Patients Have Worse Outcomes After Endovascular Therapy

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Malik M Adil ◽  
Shyam Prabhakaran
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Endovascular Treatment ◽  
Endovascular Therapy ◽  
Systems Of Care ◽  
Inpatient Rehabilitation ◽  
Patient Characteristics ◽  
Transferred Patients ◽  
Stroke Systems Of Care

Background and Objective: Ischemic stroke (IS) patients may require inter-facility transfer for higher level of care. Endovascular treatment is the main indication for transfer. We aimed to compare patient characteristics and clinical outcomes amongst transferred vs. non-transferred IS patients who undergo endovascular therapy. Methods: Patients admitted to US hospitals between 2008 and 2011 with a primary discharge diagnosis of IS were identified by ICD-9 codes (433, 434, 436 and 437.1). Mechanical embolectomy (ME) was identified using the ICD-9 procedure code 39.74 or DRG 543 and cerebral angiography (CA) day 0-1 by 88.41. Using logistic regression, we estimated the odds ratio (OR) and 95% confidence intervals (CI) for intracerebral hemorrhage (ICH), in-hospital mortality, and good outcomes (discharge home or inpatient rehabilitation) among transfer vs. non-transfers, adjusting for potential confounders. Results: Of 116,382 patients with IS treated with ME or CA (7.0% of all patients with IS), 10.1% were performed in transferred patients. Atrial fibrillation and hyperlipidemia was significantly higher in IS transfers. In-hospital mortality was higher among IS transfers (9.0% vs. 3.7%; p<0.001) and discharge to home or inpatient rehabilitation was less likely among transferred IS patients (70.2% vs. 80.6%; p<0.001). ICH was higher among IS transfers (4.6% vs. 1.7%; p<0.001). After adjusting for age, gender, race, presence of hypertension, dyslipidemia, atrial fibrillation, renal failure, alcohol abuse, insurance status, and hospital teaching status, transferred patients had higher odds of ICH (OR 2.0, 95% CI 1.5-2.8, p<0.001)] and death (OR 2.0, 95% CI 1.6-2.4, p<0.001) and lower odds of discharge to home/rehabilitation (OR 0.5, 95% CI 0.4-0.7, p<0.001) . Conclusion: Endovascular treatment for acute ischemic stroke may be associated with worse outcomes among inter-hospital transfer patients compared to non-transfers. Organized stroke systems of care may need to consider pre-hospital strategies to increase direct referrals to comprehensive stroke centers and inter-hospital strategies to reduce delays to treatment.

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