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.

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.

Abstract 214: Improvement Among All Hospital Types and Reduced Hospital Level Variation in Use of Intravenous tPA for Acute Ischemic Stroke 2003-2011: Findings from Get With The Guideline-Stroke

2013 ◽  
Vol 6 (suppl_1) ◽  
Author(s):  
Lee H Schwamm ◽  
Syed F Ali ◽  
Mathew J Reeves ◽  
Eric E Smith ◽  
Jeffrey L Saver ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Temporal Trends ◽  
Level Variation ◽  
Hospital Level ◽  
The Past ◽  
Teaching Status ◽  
Get With The Guidelines ◽  
Very High ◽  
Iv Tpa ◽  
Hospital Characteristics

Introduction: IV tPA delivery is challenging and use varies widely. We analyzed differences in patient and hospital characteristics at the hospital level in the Get with the Guidelines (GWTG) - Stroke database. Methods: We analyzed data on 73574 patients from 2003-2011 at 1231 hospitals with ≥10 tPA-eligible ischemic stroke (AIS) patients arriving < 2 hr of onset, divided into quartiles of rates of tPA delivered within 3 hrs of onset. Median percentages are reported, and temporal trends were calculated using absolute changes from 2010-2011 vs. 2003-2005. Results: Patients at hospitals with lower rates of tPA treatment within 3 hrs were older, more frequently white, used EMS less often, had lower NIHSS values with very high rates of missing NIHSSS, and greater door to imaging times as compared to better performing hospitals. Hospitals with lower rates of tPA treatment were smaller and more rural, had fewer ICU beds, and were less often teaching or primary stroke centers (Table 1). IV tPA use increased across all types of hospitals from 2003-2011, but increased to a greater degree in non-primary stroke centers and those in the South and West (Table 2). Teaching status, bed size and other measured variables were not different. Conclusion: Significant increases in IV tPA treatment among patients arriving < 2hr have occurred over the past decade, and rates of increase vary by hospital characteristics. The profile of tPA treated eligible patients also changes across the range of hospital tPA use rates, with highest performing sites reporting NIHSS in >90% of tPA patients, and treating greater numbers of patients who are non-white or with more severe strokes. Low performing sites may benefit from greater focus on NIHSS assessment and timeliness of care. .

Abstract P397: Outcomes in Acute Ischemic Stroke Patients Presenting With Impaired Level of Consciousness

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Ayham Alkhachroum ◽  
Antonio Bustillo ◽  
Negar Asdaghi ◽  
Erika T Marulanda-londono ◽  
Carolina M Gutierrez ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Length Of Stay ◽  
Hospital Mortality ◽  
Acute Ischemic Stroke ◽  
Stroke Severity ◽  
Stroke Patients ◽  
Early Recovery ◽  
Hospital Size ◽  
Stroke Registry ◽  
Level Of Consciousness

Background: Impaired level of consciousness (LOC) on presentation after acute ischemic stroke (AIS) may affect outcomes and the decision to withdraw life-sustaining treatment (WLST). We aim to investigate the outcomes and their trends after AISby the LOC on stroke presentation. Methods: We studied 238,989 cases with AIS in the Florida Stroke Registry from 2010-2019. Pearson chi-squared and Kruskall-Wallis tests were used to compare descriptive statistics. A multivariable-logistic regression with GEE accounted for basic demographics, comorbidities, stroke severity, location, hospital size and teaching status. Results: At stroke presentation, 32,861 (14%) cases had impaired LOC (mean age 77, 54% women, 60 white%, 19% Black, 16% Hispanic). Compared to cases with preserved LOC, impaired cases were older (77 vs. 72 years old), more women (54% vs. 48%), had more comorbidities, greater stroke severity on NIHSS ≥ 5 (49% vs. 27%), higher WLST rates (3% vs. 0.6%), and greater in-hospital mortality rates (9% vs. 3%). In our adjusted model however, no significant association was found between impaired LOC and in-hospital mortality, or length of stay. Those with preserved LOC were more likely discharged home/rehab (OR 0.7, 95%CI 0.6-0.8, p<0.0001) and more likely to ambulate independently (OR 0.7, 95%CI 0.6-0.9, p=0.001). Trend analysis (2010-2019) showed decreased mortality, increased length of stay, and increased rates of discharge to home/rehab in all irrespective of LOC status. Conclusion: In this large multicenter registry, AIS cases presenting with impaired LOC had more severe strokes at presentation. Although LOC was not associated with significantly worse in-hospital morality, it was associated with higher rates of WLST and more disability among survivors. Future efforts should focus on biomarkers of LOC that discriminates the potential for early recovery and reduced disability in acute stroke patients with impaired LOC.

scholarly journals Resting Heart Rate and In-Hospital Mortality in Acute Ischemic Stroke Patients With and Without Atrial Fibrillation

2020 ◽  
Vol 84 (4) ◽  
pp. 656-661
Author(s):  
Qiao Han ◽  
Chunyuan Zhang ◽  
Shoujiang You ◽  
Danni Zheng ◽  
Chongke Zhong ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Acute Ischemic Stroke ◽  
Resting Heart Rate ◽  
Stroke Patients

scholarly journals Potential Risk and Protective Factors for In-Hospital Mortality in Hyperacute Ischemic Stroke Patients

2008 ◽  
Vol 24 (4) ◽  
pp. 190-196 ◽  
Author(s):  
Chien-Hsun Li ◽  
Gim-Thean Khor ◽  
Chun-Hung Chen ◽  
Poyin Huang ◽  
Ruey-Tay Lin
Keyword(s):  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Protective Factors ◽  
Potential Risk ◽  
Risk And Protective Factors ◽  
Stroke Patients

Abstract 176: Long Term Mortality in Acute Ischemic Stroke Patients with Nonvalvular Atrial Fibrillation According to Location and Burden of Cerebral Microbleeds

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Tae-Jin Song ◽  
Jinkwon Kim ◽  
Dongbeom Song ◽  
Yong-Jae Kim ◽  
Hyo Suk Nam ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Hemorrhagic Stroke ◽  
Independent Predictor ◽  
Stroke Patients ◽  
Risk Of Death ◽  
Long Term Mortality

Background: Cerebral microbleeds (CMBs) were predictive of mortality in elderly and considered as a putative marker for risk of intracranial hemorrhage. Stroke patients with non valvular atrial fibrillation (NVAF) require anticoagulation, which increases the risk of hemorrhages. We investigated association of CMBs with the long term mortality in acute ischemic stroke patients with NVAF. Methods: During 6 years , consecutive ischemic stroke patients who had NVAF and who had undergone brain MRI with a gradient-recalled echo sequence were enrolled. Long-term mortality and causes of death were identified using data from Korean National Statistical Office. Survival analysis was performed whether the presence, number and location of CMBs were related with all causes, cardiovascular, and cerebrovascular mortality during follow-up. Results: Total 506 patients were enrolled during the study period and were followed up for median 2.5 years. CMBs were found in 30.8% of patients (156/506). Oral anticoagulation with warfarin was prescribed at discharge in 477 (82.7%) patients. During follow up, 177 (35%) patients died and cerebrovascular death was noted in 93 patients (81 ischemic stroke and 12 hemorrhagic stroke). After adjusting age, sex and significant variables in univariate analysis (p<0.1), multiple CMBs (≥5) were the independent predictor for all-cause, cardiovascular and ischemic stroke mortalities. The strictly lobar CMBs were associated with hemorrhagic stroke mortality in multivariate Cox regression analysis (HR 4.776, p=0.032) (Figure 1). Conclusions: Multiple CMBs were the independent predictor for the long term mortality in stroke patients with NVAF. Among them, patients with strictly lobar CMBs had a high risk of death due to hemorrhagic stroke. Our findings suggest that detection of CMBs in stroke patients with NVAF are of clinical relevance for predicting long term outcome and that particular concern is necessary in those with strictly lobar CMBs for their increased risk of death due to hemorrhagic stroke. Figure 1.

Abstract T P243: Mortality Among Transferred Hemorrhagic Stroke Patients in United States: An Analysis From National Database

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Malik M Adil ◽  
Shyam Prabhakaran
Keyword(s):  
Hospital Mortality ◽  
Hemorrhagic Stroke ◽  
Inpatient Rehabilitation ◽  
National Database ◽  
Stroke Patients ◽  
Discharge Outcomes ◽  
Hospital Transfer ◽  
Transferred Patients ◽  
Surgical Treatments ◽  
Acute Rehabilitation

Background: Hemorrhagic stroke patients may require inter-facility transfer for higher level of care. Limited data are available on outcome of transferred patients. Objective: To determine in-hospital mortality and discharge outcomes among transferred hemorrhagic stroke patients. Methods: Data from all patients admitted to US hospitals between 2008 and 2011 with a primary discharge diagnosis of hemorrhagic stroke [intracerebral hemorrhage (ICH), and subarachnoid hemorrhage (SAH)] were identified by ICD-9 codes (ICH: 431; SAH: 430). In separate models for ICH and SAH using logistic regression, the odds ratio (OR) and 95% confidence intervals (CI) for in-hospital mortality and good outcome (discharge home or inpatient rehabilitation) among transfer vs. non-transfers were estimated, after adjusting for potential confounders. Results: Of 290,395 patients with ICH, 48,749 (16.8%) arrived by inter-hospital transfer; for SAH, 25,726 (33%) of 78,156 were transfers. In-hospital mortality was lower among ICH transfers (21.2% vs. 23.2%; p=0.004). In adjusted analyses, in-hospital mortality was not significantly different (p=0.20) while discharge to home or inpatient rehabilitation was more likely among transferred ICH patients (OR 1.1, 95% CI 1.0-1.2, p=0.05). In-hospital mortality was lower for SAH transfers (17.4% vs. 22.9%, p<0.001) and remained significant in adjusted analyses (OR 0.7, 95% CI 0.6-0.8). Transferred SAH patients were also more likely to be discharged to home or inpatient rehabilitation (OR 1.2, 95% CI 1.1-1.4, p<0.001). Coiling and clipping procedures were significantly more common in SAH transferred patients while cerebral angiography, mechanical ventilation and gastrostomy were significantly higher in both ICH and SAH transfer patients. Conclusion: While ICH patients arriving by transfer have similar mortality as non-transfers, they are more likely to be discharged to home or acute rehabilitation. For SAH, transfer confers both mortality and outcome benefit. Definitive surgical treatments and aggressive medical supportive care at receiving hospitals may mediate the benefits of inter-hospital transfer in hemorrhagic stroke patients.

Abstract WP340: Prevalence and Influence of Chronic Obstructive Pulmonary Disease on Stroke Outcomes in Hospitalized Stroke Patients

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Oladimeji Akinboro ◽  
Odunayo Olorunfemi ◽  
Stanley Holstein ◽  
Daniel Pomerantz ◽  
Stephen Jesmajian ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Hospital Mortality ◽  
The United States ◽  
Mortality Rates ◽  
Chronic Obstructive ◽  
Stroke Patients ◽  
Obstructive Pulmonary Disease ◽  
Index Stroke ◽  
Nationally Representative ◽  
Shared Risk

Background: COPD recently overtook stroke as the third leading cause of death in the United States. Intriguingly, smoking is an important shared risk factor for both stroke and COPD; COPD patients have baseline cerebral hypoxia and hypercapnia that could potentially exacerbate vascular brain injury; and stroke patients with COPD are at higher risk of aspiration than those without COPD. Yet, relatively little is known about the prevalence of COPD among stroke patients or its impact on outcomes after an index stroke. Objective: To assess prevalence of COPD among hospitalized stroke patients in a nationally representative sample and examine the effect of COPD with risk of dying in the hospital after a stroke. Methods: Data were obtained for patients, 18 years and older, from the National Inpatient Sample from 2004-2009 (n=48,087,002). Primary discharge diagnoses of stroke were identified using ICD-9 diagnosis codes 430-432 and 433-436, of which a subset with comorbid COPD were defined with secondary ICD-9 diagnoses codes 490-492, 494, and 496. In-hospital mortality rates were calculated, and independent associations of COPD with in-hospital mortality following stroke were evaluated with logistic regression. All analysis were survey-weighted. Results: 11.71% (95% CI 11.48-11.94) of all adult patients hospitalized for stroke had COPD. The crude and age-adjusted in-hospital mortality rates for these patients were 6.33% (95% CI 6.14-6.53) and 5.99% (95% CI 4.05-7.94), respectively. COPD was independently and modestly associated with overall stroke mortality (OR 1.03, 95% CI 1.01-1.06; p=0.02). However, when analyzed by subtype, greater risks of mortality were seen in those with intracerebral hemorrhage (OR 1.12, 95% CI 1.03-1.20; p<0.01), and ischemic stroke (OR 1.08; 95% CI 1.03-1.13, p<0.01), but not subarachnoid hemorrhage (OR 0.98, 95% CI 0.85-1.13; p=0.78). There were no statistically significant interactions between COPD and age, gender, or race. Conclusion: 12% of hospitalized stroke patients have COPD. Presence of COPD is independently associated with higher odds of dying during ischemic stroke hospitalization. Prospective studies are needed to identify any modifiable risk factors contributing to this deleterious relationship.

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