Abstract T P298: Impact of Accurate Weight Based Dosing of IV tPA in Acute Ischemic Stroke Patients

Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Vishal B Jani ◽  
Sopan Lahewala ◽  
Shilpkumar Arora ◽  
Erin Shell ◽  
Anmar Razak ◽  
...  

Background: Accurate weight-based dosing is essential for efficacy and safety of thrombolysis in acute ischemic stroke (AIS). Stroke patients may be unable to communicate correct body weight (BW). Dosing may be estimated which can lead to error. Objective: To assess accuracy of weight estimation and the effect of weight and dosing discrepancy on outcome of patients with AIS Methods: 94 patients receiving IV tpa for AIS in a CSC registry between Feb, 2013 and Jul, 2014 were reviewed. All were given estimated weight based tPA- per patient input or agreement of 2 providers in ER. Accurate weights were obtained and recorded later. Actual weight was used to calculate the ideal TPA doses and compared to the weights and doses used. The cohort was separated into two groups based on weight discrepancy to those 10 kg (non forgiven) discrepancy. Rate of hemorrhage, NIHSS and hospice/mortality were assessed. Difference between categorical variables was tested using the chi-square and Fisher’ Exact Test. Differences between continuous variables were tested using Wilcoxon Rank Sum test and presented with median and IQ range. Results: 86.1% (forgiven cohort) were given the optimal tPA dose despite estimation. There was a significant difference in stroke severity based on admission NIHSS between the cohorts (33.3% in forgiven vs. 69.2% non-forgiven. P=0.04). Stroke severity based on discharge NIHSS did not reach statistical significance (mild: 71.8% vs 63.6%, moderate: 16.9% vs 9.1% and severe: 11.3% vs 27.3%, p = 0.32). 30 days modified Rankin Scale (mRS) was available for 52 pts without any significant difference (good outcome 44.4% vs 57.1%, poor outcome 35.6 % vs 28.6 %, p = 0.82). Statistically non significance toward higher rate of hemorrhagic conversion (6.4% vs 7.7%, p = 0.41), and higher mortality in non-forgiven group (7.41% vs 15.38%, p= 0.33). Conclusion: Accurate BW measurement prior tPA still remains challenging. In this study, weight estimation by 2 providers is fairly accurate. 14 % of the patients with discrepancy of > 10 kg had higher rate of mortality and hemorrhage although this was not statistically significant. Further studies with larger sample sizes are needed to examine the safety of weight estimation in AIS patients who receive IV tpa

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
RAJAN R GADHIA ◽  
Farhaan S Vahidy ◽  
Tariq Nisar ◽  
Destiny Hooper ◽  
David Chiu ◽  
...  

Objective: Most acute stroke treatment trials exclude patients above the age of 80. Given the clear benefit of revascularization with intravenous tissue plasminogen activator (IV tPA) and mechanical thrombectomy (MT), we sought to assess functional outcomes in patients treated above the age of 80. Methods: We conducted a review of all patients admitted to Houston Methodist Hospital between January 2019 and August 2020 with an acute ischemic stroke (AIS) presentation[MOU1] for whom premorbid, discharge, and 90 day modified Rankin Scale scores were available. Patients were categorized by acute stroke treatment (IV tPA, MT, both or none[MOU2] ). mRS values were assessed during admission prior to discharge and at 90 days post stroke event. A delta mRS (Discharge vs. 90-day [MOU3] ) was defined and grouped as no change, improved, or worsened to assess overall functional disability in regards to the index stroke presentation. Results: A total of 865 patients with AIS presentation were included, of whom 651 (75.3%) were <80 years and 214 (24.7%) were > 80 years of age at presentation. A total of 208 patients received IV tPA, 176 underwent revascularization with MT only, 71 had both treatments, and 552 had no acute intervention. In patients >80 yrs who had no acute stroke intervention. mRS improvement was noted in 71.4% compared to 54.1% observed in those patients <80 years. Among patients who received IV tPA, 81.5% of > 80 years improved vs. 61.6% in the younger cohort. A similar trend was noted in the MT and combined treatment groups (76.2% vs. 71.2% and 78.6% vs. 79.3%, respectively). Conclusion: Based on our cohort of acute stroke patients, there was no significant difference in outcomes (as measured by delta mRS) for octogenarians and nonagenarians when compared to younger patients. There was a trend towards improvement in the elderly patients. Chronological age by itself may be an insufficient predictor of functional outcome among stroke patients and age cutoffs for enrollment of patients in acute stroke trials may need additional considerations.


Author(s):  
Elisabeth B Marsh ◽  
Erin Lawrence ◽  
Rafael H Llinas

Background and Objective: The National Institute of Health Stroke Scale (NIHSS) is the most commonly used metric to evaluate stroke severity and improvement following intervention. Despite its advantages as a rapid, reproducible screening tool, it may be too insensitive to adequately capture functional improvement following treatment. We evaluated the difference in rate of improvement by previously accepted criteria (change of ≥4 NIHSS points) versus physician documentation in patients receiving IV tissue plasminogen activator (tPA) for acute ischemic stroke. Methods: Prospectively collected data on all patients receiving IV tPA over a 15 month period were retrospectively reviewed. NIHSS 24 hours post-treatment and on discharge were extrapolated based on examination and compared to NIHSS on presentation. NIHSS scores at post-discharge follow-up were also recorded. Two reviewers evaluated the medical record and determined improvement based on physician documentation. Using tests of proportion, ‘significant improvement’ by NIHSS was compared to physician documentation at each time point. Results: Forty-one patients were treated with IV tPA. The mean admission NIHSS was 8.6 and improved to 6.4 24 hours post-tPA. Twenty-nine of 41 patients (79%) were “better” by documentation; however only 11/41 (27%) met NIHSS criteria for improvement (p compared to documentation <0.001). On discharge, 20/41 patients (49%) met NIHSS criteria for improvement; however a significant difference between physician documentation remained (p=0.04). The mean post-discharge follow-up NIHSS score was 2.0. 20/21 patients (95%) were “better” compared to 16/21 (76%) meeting NIHSS criteria (p=0.08). Conclusion: The NIHSS may inadequately capture functional improvement post-treatment, especially in the days immediately following intervention.


Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Michelle Provencher ◽  
Ashley Scherman ◽  
Elizabeth Baraban ◽  
Robert Jackson ◽  
Tamela L Stuchiner ◽  
...  

Previous studies have shown that faster Door to Needle (DTN) treatment times are associated with better outcomes for acute ischemic stroke patients. With the continued push for faster times, we aimed to determine if DTN treatment times in the 30- vs 45-minute time window yielded statistically significant differences in outcomes or complications. Data obtained from a multi-state stroke registry included acute ischemic stroke patients ≥18 years of age discharged between January 2017 and April 2020, and treated with IV alteplase with DTN times between 25-30 or 40-45 minutes. Outcomes were 90-day Modified Rankin Score (mRS) (0-2 vs 3-6), discharge disposition [home or inpatient rehabilitation facility (IRF) vs other location], complications (any treatment-related complication vs none), and hospital length of stay (LOS). Patients with a documented reason for delay or who received thrombectomy were excluded. Outcomes of patients with 25- to 30-minute DTN times were compared to those with 40- to 45-minute DTN times using generalized linear models and multiple linear regression, adjusting for admission NIHSS, age, gender, race/ethnicity, and medical history. Compared to the 20-25 minute group, patients treated in the 40-45 minute window had higher odds of a documented 90-day mRS of 3 or more (Adjusted Odds Ratio (AOR)=1.19, p=0.253, n=201 ) and treatment-related complication (AOR=1.35, p=0.569) and lower odds of discharge to home or IRF (AOR=0.846, p=0.359). There was little difference in LOS (β=-0.008, p=0.847). None of the outcomes reached statistical significance. Administering alteplase in the 25- to 30-minute window is safe and did not result in an increase in bleeding complications. Although faster treatment times trended toward better outcomes, there was no statistically significant difference between the 25-30 and 40-45 minute DTN treatment times.


Circulation ◽  
2013 ◽  
Vol 127 (suppl_12) ◽  
Author(s):  
Amelia K Boehme ◽  
James E Siegler ◽  
Karen C Albright ◽  
Dominique J Monlezun ◽  
Erica M Jones ◽  
...  

Background: Previous research has indicated that women and Blacks have worse outcomes following acute ischemic stroke (AIS). Little research has been done to investigate the influence of race in the presentation and outcome specifically among women with AIS. Methods: AIS patients presenting to two centers in the Stroke Belt (2004-2011) were identified by prospective registries. Men, women who did not identify as Black or White, and in-hospital strokes were excluded. Patient demographics, clinical characteristics, admission National Institutes of Health Stroke Scale (NIHSS) scores, favorable discharge disposition (home or inpatient rehab), time from last seen normal to ED arrival, and functional discharge outcome as measured by the modified Rankin Scale (mRS) were investigated. Patients were divided into 3 groups: (1) not treated with IV t-PA, (2) treated with IV t-PA within 3 hours of symptom onset, and (3) treated with IV t-PA beyond 3 hours. Results: Of the 8763 patients screened, 2217 women met the study criteria (59% White). White women were older (72 vs. 64; p<0.0001), had higher percentage of atrial fibrillation (24% vs. 11%; p<0.0001), lower percentage of diabetes (30% vs. 40%, p<0.0001), lower percentage of hypertension (73% vs. 84%; p<0.0001) and had a higher baseline NIHSS (9 vs. 7; p=0.0045) Administration of tPA was significantly less among Black women (36% Whites vs. 27% Blacks, p<0.0001). White women are at increased odds of receiving tPA treatment (OR=1.43, 95%CI 1.17-1.75, p=0.0005), and remain at increased odds after adjusting for age, baseline NIHSS, time from last seen normal and glucose (OR 1.42, 95% CI 1.11-1.81, p=00044). Despite the significant difference in treatment with IV tPA, White women had increased odds of having a poor functional outcome (OR=1.2, 95% CI 1.02-1.439,p=0.0250) and unfavorable discharge disposition (OR 1.4, 95% CI 1.18-1.67, p=0.0001), but stratifying by tPA treatment groups, race was not found to be predictive of outcome after adjusting for known confounders (i.e., age, glucose, baseline NIHSS, time from last seen normal). Discussion: Unlike data from previous studies, Black women who presented to these two centers with AIS had less severe neurologic deficits on presentation compared to their White counterparts. Despite differences in the proportion of Blacks and Whites treated with IV tPA, race was not significantly associated with outcome. In our study, age and stroke severity_not race_were the primary predictors for poor outcome.


Author(s):  
Shreyansh Shah ◽  
Li Liang ◽  
Andrzej Kosinski ◽  
Adrian F. Hernandez ◽  
Lee H. Schwamm ◽  
...  

Background Guidelines recommend against the use of intravenous tPA (tissue-type plasminogen activator; IV tPA) in acute ischemic stroke patients with prior ischemic stroke within 3 months. However, there are limited data on the safety of IV tPA in this population. Methods and Results A retrospective observational study of patients ≥66 years of age linked to Medicare claims and treated with IV tPA at Get With The Guidelines–Stroke hospitals (February 2009 to December 2015). We identified 293 patients treated with IV tPA who had a prior ischemic stroke within 3 months and 30 655 with no history of stroke. Patients with prior stroke had a higher stroke severity (median National Institutes of Health Stroke Scale, 11 [6–19] versus 11 [6–18]; absolute standardized difference, 11.2%) and a higher prevalence of cardiovascular comorbidities. Patients with prior stroke had a higher unadjusted risk for symptomatic intracranial hemorrhage (7.7% versus 4.8%) and in-hospital mortality (12.6% versus 8.9%), but these differences were not statistically significant after adjustment. When stratified by prespecified time epochs, the elevated risk for symptomatic intracranial hemorrhage was seen only within the first 14 days (16.3% versus 4.8%; adjusted odds ratio [aOR], 3.7 [95% CI, 1.62–8.43]) but not in other epochs (2.1% versus 4.8%; aOR, 0.38 [95% CI, 0.05–2.79] for 15–30 days and 7.4% versus 4.8%; aOR, 1.36 [95% CI, 0.77–2.40] for 31–90 days). In addition, patients with prior stroke were significantly more likely to have a combined outcome of in-hospital mortality or discharge to hospice (25.9% versus 17.0%; aOR, 1.70 [95% CI, 1.21–2.38]), less likely to be discharged to home (28.3% versus 32.3%; aOR, 0.72 [95% CI, 0.54–0.98]), or to have good functional outcomes at discharge (modified Rankin Scale, 0–1; 11.3% versus 20.0%; aOR, 0.46 [95% CI, 0.24–0.89]). Conclusions Stroke providers need to continue to be vigilant about the safety of IV tPA in patients with prior stroke, particularly those with an event in the previous 14 days.


2021 ◽  
Vol 56 (3) ◽  
pp. 165
Author(s):  
Maria Lettisia Meo ◽  
Abdulloh Machin ◽  
Didik Hasmono

Acute ischemic stroke is the leading cause of death and causing permanent disability in adults worldwide. In acute ischemic stroke, IL-6 levels positively correlated to more severe neurological deficits, more extensive brain damage and worse prognoses. The use of statin was associated with milder initial stroke severity, better functional outcome and lower mortality. This clinically randomized controlled trial study was aimed to analyze the serum levels of IL 6 in acute ischemic stroke patients who treated with Simvastatin 20 mg compare to placebo. Samples were taken using consecutive sampling method from hospitalized acute ischemic stroke patients in Neurology Department of Dr. Soetomo Teaching Hospital Surabaya and Airlangga University Hospital Surabayafrom August to November 2017. Total of 44 patients met the inclusion criteria, consisting of 22 patients in treatment group and 22 patients in control group.There were no significant difference in the characteristic of the patients in both groups (p>0.05). Averages of serum IL-6 in the control and the treatment group are 38.594±74.313 and 17.760±25.253(p=0,438) while averages of serum IL-6 post in the control group and the treatment are 46.586±103.484 and 15.275±17.183 (p=0,589). There were no significant level escalation in pre and post of control group (p = 0.205) and also no significant level reduction in pre and post of treatment group (p = 0.411), while the average difference in the control group (-7.992 + 78.912 pg/ml) and in the treatment group (2.485 + 23.738 pg/ml).


2020 ◽  
Vol 56 (3) ◽  
pp. 165
Author(s):  
Maria Lettisia Meo ◽  
Abdulloh Machin ◽  
Didik Hasmono

Acute ischemic stroke is the leading cause of death and causing permanent disability in adults worldwide. In acute ischemic stroke, IL-6 levels positively correlated to more severe neurological deficits, more extensive brain damage and worse prognoses. The use of statin was associated with milder initial stroke severity, better functional outcome and lower mortality. This clinically randomized controlled trial study was aimed to analyze the serum levels of IL 6 in acute ischemic stroke patients who treated with Simvastatin 20 mg compare to placebo. Samples were taken using consecutive sampling method from hospitalized acute ischemic stroke patients in Neurology Department of Dr. Soetomo Teaching Hospital Surabaya and Airlangga University Hospital Surabaya from August to November 2017. Total of 44 patients met the inclusion criteria, consisting of 22 patients in treatment group and 22 patients in control group. There were no significant difference in the characteristic of the patients in both groups (p>0.05). Averages of serum IL-6 in the control and the treatment group are 38.594±74.313 and 17.760±25.253 (p=0,438) while averages of serum IL-6 post in the control group and the treatment are 46.586±103.484 and 15.275±17.183 (p=0,589). There were no significant level escalation in pre and post of control group (p=0.205) and also no significant level reduction in pre and post of treatment group (p=0.411), while the average difference in the control group  (-7.992 ± 78.912 pg/ml) and in the treatment group (2.485 ± 23.738 pg/ml).


2019 ◽  
Vol 7 (5) ◽  
pp. 747-751 ◽  
Author(s):  
Ismail Setyopranoto ◽  
Ahmad Hamim Sadewa ◽  
Samekto Wibowo ◽  
I Putu Eka Widyadharma

BACKGROUND: Glucose and oxygen supply to neurons are disrupted during acute ischemic stroke, resulting in hypoxia. This event, in turn, activates the transcription of hypoxia-inducible factor (HIF-1), which is responsible for activating genes responsible for angiogenesis, including vascular endothelial growth factor (VEGF). VEGF and their receptor systems exert complex mechanisms of angiogenesis, including the stimulator, inhibitors, angiogenic and modulator. VEGF-A is the primary regulator of angiogenesis, both during physiological and pathological conditions. Nevertheless, the role of VEGF on the prognosis of hypoxia remains controversial. AIM: The purpose of this study was to address if there is any difference between the mean expression of VEGF-A between acute ischemic patients and non-ischemic stroke subjects. METHODS: This was an observational study with a cross-sectional design, the population in this research is the acute ischemic stroke patients and non-ischemic stroke subjects, which were admitted on Emergency Room and later treated in the Stroke Unit, Dr Sardjito General Hospital, Yogyakarta, Indonesia. Subjects were recruited using the purposive method, yielding a total of 64 subjects on both groups. Diagnosis of acute ischemic stroke was established using a head CT scan. Patients who meet the inclusion criteria and willing to participate in the study were asked to provide informed consent. Laboratory analysis was conducted during the first 24 hours after being treated at Stroke Unit, Dr Sardjito General Hospital, Yogyakarta, Indonesia, with venous blood was withdrawn VEGF-A levels between acute ischemic stroke and non-ischemic stroke subjects were subsequently compared. Categorical variables (including gender) were tested using either chi-square or Fisher exact test. Interval data was examined using student t-test if data distribution was normal. RESULTS: As many as 35 acute ischemic stroke and 35 non-ischemic stroke patients were included in the study, among whom were 18 men (51.43%) and 17 women (48.57%) among stroke patients and 21 (60%) men and 14 (40%) women among subjects without stroke. The average of the subject's age on stroke and non-ischemic stroke group was 58.51 and 48.57 years old. VEGF-A levels were significantly higher in the non-stroke group (561.77 ± 377.92) compared with stroke group (397.78 ± 181.53) with p = 0.02. CONCLUSION: expression of VEGF-A in acute ischemic stroke group was lower when compared with the non-stroke group.


2020 ◽  
Vol 38 (4) ◽  
pp. 311-321
Author(s):  
Jiaying Zhu ◽  
Mengmeng Ma ◽  
Jinghuan Fang ◽  
Jiajia Bao ◽  
Shuju Dong ◽  
...  

Background: Statin therapy has been shown to be effective in the prevention of ischemic stroke. In addition, recent studies have suggested that prior statin therapy could lower the initial stroke severity and improve stroke functional outcomes in the event of stroke. It was speculated that prestroke statin use may enhance collateral circulation and result in favorable functional outcomes. Objective: The aim of the study was to investigate the association of prestroke statin use with leptomeningeal collaterals and to determine the association of prestroke statin use with stroke severity and functional outcome in acute ischemic stroke patients. Methods: We prospectively and consecutively enrolled 239 acute ischemic stroke patients with acute infarction due to occlusion of the middle cerebral artery within 24 h in the neurology department of West China Hospital from May 2011 to April 2017. Computed tomographic angiography (CTA) imaging was performed for all patients to detect middle cerebral artery thrombus; regional leptomeningeal collateral score (rLMCS) was used to assess the degree of collateral circulation; the National Institutes of Health Stroke Scale (NIHSS) was used to measure stroke severity at admission; the modified Rankin scale (mRS) was used to measure outcome at 90 days; and premorbid medications were recorded. Univariate and multivariate analyses were performed. Results: Overall, 239 patients met the inclusion criteria. Fifty-four patients used statins, and 185 did not use statins before stroke onset. Prestroke statin use was independently associated with good collateral circulation (rLMCS > 10) (odds ratio [OR], 4.786; 95% confidence interval [CI], 1.195–19.171; P = 0.027). Prestroke statin use was not independently associated with lower stroke severity (NIHSS score≤14) (OR, 1.955; 95% CI, 0.657–5.816; p = 0.228), but prestroke statin use was independently associated with favorable outcome (mRS score≤2) (OR, 3.868; 95% CI, 1.325–11.289; P = 0.013). Conclusions: Our findings suggest that prestroke statin use was associated with good leptomeningeal collaterals and clinical outcomes in acute ischemic stroke (AIS) patients presenting with occlusion of the middle cerebral artery. However, clinical studies should be conducted to verify this claim.


Cureus ◽  
2018 ◽  
Author(s):  
Muhammad F Khan ◽  
Ibrahim Shamael ◽  
Qamar Zaman ◽  
Asad Mahmood ◽  
Maimoona Siddiqui

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