Abstract 5: Do Stroke Centers Reduce Mortality for Patients with Acute Ischemic Stroke? An Instrumental Variable Analysis

2011 ◽  
Vol 4 (suppl_1) ◽  
Author(s):  
Ying Xian ◽  
Robert G Holloway ◽  
Katia Noyes ◽  
Manish N Shah ◽  
Bruce Friedman
Keyword(s):  
New York ◽  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Acute Ischemic Stroke ◽  
New York State ◽  
Selection Effect ◽  
Stroke Care ◽  
Instrumental Variable Analysis ◽  
All Cause Mortality ◽  
Stroke Center

Background: Although the establishment of stroke centers based on the Brain Attack Coalition recommendations has great potential to improve quality of stroke care, little is known about whether stroke centers improve health outcomes such as mortality. Methods: Using 2005-2006 New York State Statewide Planning and Research Cooperative System data, we identified 32,783 hospitalized patients age 18+ with a principal diagnosis of acute ischemic stroke (ICD-9 433.x1, 434.x1 and 436). We compared in-hospital mortality and up to one year all-cause mortality between New York State Designated Stroke Centers and non-stroke center hospitals. Because patients were not randomly assigned to hospitals, stroke centers might treat different types of patients than other hospitals (a selection effect). We used a “natural randomization” approach, instrumental variable analysis (differential distance was the instrument), to control for this selection effect. To determine whether the mortality difference was specific to stroke care, we repeated the analysis using a different group of patients with gastrointestinal (GI) hemorrhage (N=53,077). Results: Of the 32,783 stroke patients, nearly 50% (16,258) were admitted to stroke centers. Stroke centers had lower unadjusted in-hospital mortality and 30-, 90-, 180-, and 365-day all-cause mortality than non-stroke centers (7.0% vs. 7.8%, 10.0% vs. 12.6%, 14.6% vs. 17.5%, 18.0% vs. 21.0%, 22.4% vs. 26.2%, respectively). After adjusting for patient and hospital characteristics, comorbidities, and the patient selection effect, stroke centers were associated with significantly lower all-cause mortality. The adjusted differences were -2.6%, -2.7%, -1.8%, and -2.3% for 30-, 90-, 180- and 365-day mortality (all p<0.05). The adjusted difference in in-hospital mortality was -0.8% but was not statistically significant. In a specificity analysis of patients with GI hemorrhage, stroke centers had slightly higher mortality. Conclusions: Hospitals that are Designated Stroke Centers had lower mortality for acute ischemic stroke than non-stroke center hospitals. The mortality benefit was specific to stroke and was not observed for GI hemorrhage. Providing stroke centers nationwide has the potential to reduce mortality.

In-Hospital Stroke Care: A Six-Year Community-Based Primary Stroke Center Experience

2021 ◽  
pp. 194187442110070
Author(s):  
Felix Ejike Chukwudelunzu ◽  
Bart M Demaerschalk ◽  
Leonardo Fugoso ◽  
Emeka Amadi ◽  
Donn Dexter ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Statistical Significance ◽  
Intravenous Thrombolysis ◽  
Stroke Care ◽  
Community Based ◽  
Chi Square ◽  
Stroke Team ◽  
Primary Stroke Center ◽  
Stroke Center

Background and purpose: In-hospital stroke-onset assessment and management present numerous challenges, especially in community hospitals. Comprehensive analysis of key stroke care metrics in community-based primary stroke centers is under-studied. Methods: Medical records were reviewed for patients admitted to a community hospital for non-cerebrovascular indications and for whom a stroke alert was activated between 2013 and 2019. Demographic, clinical, radiologic and laboratory information were collected for each incident stroke. Descriptive statistical analysis was employed. When applicable, Kruskal-Wallis and Chi-Square tests were used to compare median values and categorical data between pre-specified groups. Statistical significance was set at alpha = 0.05. Results: There were 192 patients with in-hospital stroke-alert activation; mean age (SD) was 71.0 years (15.0), 49.5% female. 51.6% (99/192) had in-hospital ischemic and hemorrhagic stroke. The most frequent mechanism of stroke was cardioembolism. Upon stroke activation, 45.8% had ischemic stroke while 40.1% had stroke mimics. Stroke team response time from activation was 26 minutes for all in-hospital activations. Intravenous thrombolysis was utilized in 8% of those with ischemic stroke; 3.4% were transferred for consideration of endovascular thrombectomy. In-hospital mortality was 17.7%, and the proportion of patients discharged to home was 34.4% for all activations. Conclusion: The in-hospital stroke mortality was high, and the proportions of patients who either received or were considered for acute intervention were low. Quality improvement targeting increased use of acute stroke intervention in eligible patients and reducing hospital mortality in this patient cohort is needed.

Abstract WP399: Reduced Cost and Decreased Length of Stay Associated with Acute Ischemic Stroke Care Provided by Nurse Practitioners: A Single Primary Stroke Center Experience

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Leah Roering ◽  
Michelle Peterson ◽  
Muhammad Shah Miran ◽  
Melissa Freese ◽  
Kenneth Shea ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Length Of Stay ◽  
Acute Ischemic Stroke ◽  
Nurse Practitioners ◽  
Acute Care Hospital ◽  
Stroke Care ◽  
Care Hospital ◽  
Medical Provider ◽  
The Mean ◽  
Stroke Center

Background: Nurse practitioner (NP) have a wider role in modern stroke centers providing quality evidence based care to patients in both in and outpatient settings for acute ischemic stroke (AIS) and transient ischemic attack (TIA) patients. We studied the outcome measures, length of stay (LOS) and cost before and after implementation of nurse practitioners as the primary medical provider in a community based stroke center. Methods: St Cloud hospital is acute care hospital with dedicated stroke service responsible for workup and management of all patients admitted with AIS and TIA. From March 2014-March 2015, all patients were primarily managed by stroke neurologists with or without support of NP, representing physician driven arm. From June 2015-March 2016 all non-critical patients were managed primarily by NP, representing the NP driven arm of care. For this analysis, we excluded all patients with subarachnoid hemorrhage or intracerebral hemorrhage. Using ICD codes, we abstracted LOS and hospitalization cost for all patients, and compared between two arms. Results: A total of 822 patients were included in physician arm and 336 in NP arm. The mean age was 72±14 years for both arms, and 54.4% were male in physician arm and 57.4% were male in NP arm. The mean total LOS for the physician arm was 3.1 ±3.3 days while 2.9±3.6 for NP arm (p=0.6). The total cost for physician arm was $11,286.70 ±$10,920.90 while the NP arm was $10,277.30± $10,142.30 (p=0.1). Conclusion: There is a trend towards lower cost and length of stay with implementation of NP as primary stroke provider for patients admitted with acute ischemic stroke.

Abstract P145: Outcomes of an EMR-Enabled Acute Ischemic Stroke Care Path in a Primary Stroke Center

Circulation ◽  
2019 ◽  
Vol 139 (Suppl_1) ◽  
Author(s):  
Aaron Dunn ◽  
Selena Pasadyn ◽  
Francis May ◽  
Dolora Wisco
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Stroke Care ◽  
Primary Stroke Center ◽  
Stroke Center ◽  
Care Path

scholarly journals Mandatory Neuroendovascular Evolution: Meeting the New Demands

2018 ◽  
Vol 8 (1) ◽  
pp. 69-82
Author(s):  
Mohammad El-Ghanem ◽  
Francisco E. Gomez ◽  
Prateeka Koul ◽  
Rolla Nuoman ◽  
Justin G. Santarelli ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Symptom Onset ◽  
Mechanical Thrombectomy ◽  
Stroke Care ◽  
Endovascular Intervention ◽  
Stroke Patients ◽  
Hub And Spoke ◽  
Comprehensive Stroke Center ◽  
Stroke Center

Background: Traditionally, patients undergoing acute ischemic strokes were candidates for mechanical thrombectomy if they were within the 6-h window from onset of symptoms. This timeframe would exclude many patient populations, such as wake-up strokes. However, the most recent clinical trials, DAWN and DEFUSE3, have expanded the window of endovascular treatment for acute ischemic stroke patients to within 24 h from symptom onset. This expanded window increases the number of potential candidates for endovascular intervention for emergent large vessel occlusions and raises the question of how to efficiently screen and triage this increase of patients. Summary: Abbreviated pre-hospital stroke scales can be used to guide EMS personnel in quickly deciding if a patient is undergoing a stroke. Telestroke networks connect remote hospitals to stroke specialists to improve the transportation time of the patient to a comprehensive stroke center for the appropriate level of care. Mobile stroke units, mobile interventional units, and helistroke reverse the traditional hub-and-spoke model by bringing imaging, tPA, and expertise to the patient. Smartphone applications and social media aid in educating patients and the public regarding acute and long-term stroke care. Key Messages: The DAWN and DEFUSE3 trials have expanded the treatment window for certain acute ischemic stroke patients with mechanical thrombectomy and subsequently have increased the number of potential candidates for endovascular intervention. This expansion brings patient screening and triaging to greater importance, as reducing the time from symptom onset to decision-to-treat and groin puncture can better stroke patient outcomes. Several strategies have been employed to address this issue by reducing the time of symptom onset to decision-to-treat time.

Designated Stroke Center Status and Hospital Characteristics as Predictors of In-Hospital Mortality among Hemorrhagic Stroke Patients in New York, 2008-2012

2016 ◽  
Vol 43 (1-2) ◽  
pp. 43-53 ◽  
Author(s):  
Hajere J. Gatollari ◽  
Anna Colello ◽  
Bonnie Eisenberg ◽  
Ian Brissette ◽  
Jorge Luna ◽  
...  
Keyword(s):  
New York ◽  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Hemorrhagic Stroke ◽  
New York State ◽  
Hospital Level ◽  
Stroke Patients ◽  
Hospital Size ◽  
Teaching Status ◽  
Hospital Characteristics

Background: Although designated stroke centers (DSCs) improve the quality of care and clinical outcomes for ischemic stroke patients, less is known about the benefits of DSCs for patients with intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH). Hypothesis: Compared to non-DSCs, hospitals with the DSC status have lower in-hospital mortality rates for hemorrhagic stroke patients. We believed these effects would sustain over a period of time after adjusting for hospital-level characteristics, including hospital size, urban location, and teaching status. Methods and Results: We evaluated ICH (International Classification of Diseases, Ninth Revision; ICD-9: 431) and SAH (ICD-9: 430) hospitalizations documented in the 2008-2012 New York State Department of Health Statewide Planning and Research Cooperative System inpatient sample database. Generalized estimating equation logistic regression was used to evaluate the association between DSC status and in-hospital mortality. We calculated ORs and 95% CIs adjusted for clustering of patients within facilities, other hospital characteristics, and individual level characteristics. Planned secondary analyses explored other hospital characteristics associated with in-hospital mortality. In 6,352 ICH and 3,369 SAH patients in the study sample, in-hospital mortality was higher among those with ICH compared to SAH (23.7 vs. 18.5%). Unadjusted analyses revealed that DSC status was related with reduced mortality for both ICH (OR 0.7, 95% CI 0.5-0.8) and SAH patients (OR 0.4, 95% CI 0.3-0.7). DSC remained a significant predictor of lower in-hospital mortality for SAH patients (OR 0.6, 95% CI 0.3-0.9) but not for ICH patients (OR 0.8, 95% CI 0.6-1.0) after adjusting for patient demographic characteristics, comorbidities, hospital size, teaching status and location. Conclusions: Admission to a DSC was independently associated with reduced in-hospital mortality for SAH patients but not for those with ICH. Other patient and hospital characteristics may explain the benefits of DSC status on outcomes after ICH. For conditions with clear treatments such as ischemic stroke and SAH, being treated in a DSC improves outcomes, but this trend was not observed in those with strokes, in those who did not have clear treatment guidelines. Identifying hospital-level factors associated with ICH and SAH represents a means to identify and improve gaps in stroke systems of care.

National trends in outcomes of ischemic stroke and prognostic influence of stroke center capability in Japan, 2010–2016

2019 ◽  
pp. 174749301988452 ◽  
Author(s):  
Akiko Kada ◽  
Kuniaki Ogasawara ◽  
Takanari Kitazono ◽  
Kunihiro Nishimura ◽  
Nobuyuki Sakai ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Acute Ischemic Stroke ◽  
Mechanical Thrombectomy ◽  
Temporal Trends ◽  
Stroke Severity ◽  
Stroke Patients ◽  
Poor Outcomes ◽  
Comprehensive Stroke Center ◽  
Stroke Center

Background Limited national-level information on temporal trends in comprehensive stroke center capabilities and their effects on acute ischemic stroke patients exists. Aims To examine trends in in-hospital outcomes of acute ischemic stroke patients and the prognostic influence of temporal changes in comprehensive stroke center capabilities in Japan. Methods This retrospective study used the J-ASPECT Diagnosis Procedure Combination database and identified 372,978 acute ischemic stroke patients hospitalized in 650 institutions between 2010 and 2016. Temporal trends in patient outcomes and recombinant tissue plasminogen activator (rt-PA) and mechanical thrombectomy usage were examined. Facility comprehensive stroke center capabilities were assessed using a validated scoring system (comprehensive stroke center score: 1–25 points) in 2010 and 2014. The prognostic influence of temporal comprehensive stroke center score changes on in-hospital mortality and poor outcomes (modified Rankin Scale: 3–6) at discharge were examined using hierarchical logistic regression models. Results Over time, stroke severity at admission decreased, whereas median age, sex ratio, and comorbidities remained stable. The median comprehensive stroke center score increased from 16 to 17 points. After adjusting for age, sex, comorbidities, consciousness level, and facility comprehensive stroke center score, proportion of in-hospital mortality and poor outcomes at discharge decreased (from 7.6% to 5.0%, and from 48.7% to 43.1%, respectively). The preceding comprehensive stroke center score increase (in 2010–2014) was independently associated with reduced in-hospital mortality and poor outcomes, and increased rt-PA and mechanical thrombectomy use (odds ratio (95% confidence interval): 0.97 (0.95–0.99), 0.97 (0.95–0.998), 1.07 (1.04–1.10), and 1.21 (1.14–1.28), respectively). Conclusions This nationwide study revealed six-year trends in better patient outcomes and increased use of rt-PA and mechanical thrombectomy in acute ischemic stroke. In addition to lesser stroke severity, preceding improvement of comprehensive stroke center capabilities was an independent factor associated with such trends, suggesting importance of comprehensive stroke center capabilities as a prognostic indicator of acute stroke care.

scholarly journals Comparison of stroke care parameters in acute ischemic stroke patients with and without concurrent Covid-19. A Nationwide analysis

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Daniel Richter ◽  
Christos Krogias ◽  
Jens Eyding ◽  
Dirk Bartig ◽  
Armin Grau ◽  
...  
Keyword(s):  
Health Care ◽  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Acute Ischemic Stroke ◽  
Intravenous Thrombolysis ◽  
Stroke Care ◽  
Similar Rate ◽  
Public Health Care ◽  
Administrative Database ◽  
Main Diagnosis

Abstract Background Comparing health care parameters of acute ischemic stroke (AIS) patients with and without concurrent coronavirus disease 2019 (Covid-19, SARS-CoV-2 infection), may be helpful in terms of optimizing clinical and public health care during pandemic. Methods We evaluated a nationwide administrative database of all hospitalized patients with main diagnosis of acute ischemic stroke with/without diagnosis of Covid-19 who were hospitalized during the time period from January 16th to May 15th, 2020. Data from a total of 1463 hospitals in Germany were included. We compared case numbers, treatment characteristics (intravenous thrombolysis, IVT; mechanical thrombectomy, MT; treated on an intensive care unit, stroke unit or regular ward) and in-hospital mortality of AIS with and without concurrent diagnosis of Covid-19. Results From a total of 30,864 hospitalized Covid-19 patients during the evaluation period in Germany, we identified a subgroup of 213 patients with primary diagnosis of AIS. Compared to the 68,700 AIS patients without Covid-19, this subgroup showed a similar rate of IVT (16.4% vs. 16.5%, p = 0.985) but a significantly lower rate of MT (3.8% vs. 7.9%, p = 0.017). In-hospital mortality rate was significantly higher in patients with AIS and concurrent Covid-19 compared to non-infected AIS patients (22.5% vs. 7.8%, p < 0.001). Conclusion These nationwide data point out differences in mortality and medical treatment regime between AIS patients with and without concurrent Covid-19. Since the pandemic is still ongoing, these data draw attention to AIS as a less frequent but often fatal comorbidity in Covid-19 patients.

scholarly journals Impact of Primary Stroke Center Certification on Location of Acute Ischemic Stroke Care in Georgia

Stroke ◽  
2012 ◽  
Vol 43 (5) ◽  
pp. 1415-1417 ◽  
Author(s):  
Jeffrey A. Switzer ◽  
Abiodun Akinwuntan ◽  
Jennifer Waller ◽  
Fenwick T. Nichols ◽  
David C. Hess ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Stroke Care ◽  
Primary Stroke Center ◽  
Stroke Center

scholarly journals CNS Francis McNaughton Memorial Prize

2015 ◽  
Vol 42 (S1) ◽  
pp. S9-S9
Author(s):  
JC Furlan ◽  
J Fang ◽  
FL Silver
Keyword(s):  
Ischemic Stroke ◽  
Acute Stroke ◽  
Acute Ischemic Stroke ◽  
Normal Limit ◽  
Care Center ◽  
Hemoglobin Concentration ◽  
Stroke Care ◽  
Acute Stroke Care ◽  
Degree Of Disability ◽  
Stroke Center

Background: This study examines whether abnormal blood hemoglobin concentration (bHB) is associated with worse clinical outcomes and poorer prognosis after acute ischemic stroke. Methods: We included data from the Registry of the Canadian Stroke Network on consecutive patients with ischemic stroke who were admitted between July/2003 and March/2008. Patients were divided into groups as follows: low bHB, normal bHB, and high bHB. Primary outcome measures were the frequency of moderate/severe strokes on admission (Canadian Neurological Scale: <8), greater degree of disability at discharge (modified Rankin score: 3-6), and 30-day and 90-day mortality. Results: Higher bHB than the superior normal limit is associated with greater degree of impairment (OR=1.45, 95%CI: 1.06-1.95, p=0.0195) and disability (OR=1.49, 95%CI: 1.03-2.15, p=0.0331), and higher 30-day mortality (HR=1.98, 95%CI: 1.44-2.74, p<0.0001) after adjustment for major potential confounders. The Kaplan-Meier curves indicate that abnormal bHB is associated with higher mortality after acute ischemic stroke (p<0.0001). Lower bHB than the inferior normal limit is associated with longer stay in the acute stroke care center (OR=1.11, 95%CI: 1.02-1.22, p=0.017). Conclusions: Polycythemia on the initial admission is associated with poorer prognosis regarding the degree of impairment and disability, and 30-day mortality after an acute ischemic stroke. Anemia on admission is associated with longer stay in the acute stroke center.

Sign in / Sign up

Export Citation Format

Share Document