Iron Measured in Nasal Exudate Samples as a New and Useful Biomarker in the Differential Diagnosis of Patients with Acute Stroke

2020 ◽  
Vol 49 (6) ◽  
pp. 625-631
Author(s):  
Carmen García-Cabo ◽  
Pablo Llano-Suárez ◽  
Lorena Benavente Fernández ◽  
Jose Manuel Costa-Fernández ◽  
Maria Teresa Fernández-Abedul ◽  
...  

<b><i>Introduction:</i></b> Differential diagnosis between ischemic and hemorrhagic strokes in the acute stage is one of the major challenges of neurovascular research. Several biomarkers have been studied, but attempts to date have focused on determining their blood levels. Recently, cerebral lymphatic drainage toward the nostrils has been discovered, giving us the chance to study nasal exudate looking for biomarkers of neural damage. We sought to confirm whether iron levels in nasal exudate could identify the hemorrhagic nature of acute stroke. <b><i>Methods:</i></b> We studied iron nasal exudate levels in 32 ischemic and 43 hemorrhagic stroke patients. All patients underwent neurological examination assessed by the National Institutes of Health Stroke Scale (NIHSS), brain computed tomography to the differential diagnosis of stroke subtype, laboratory tests, and measurement of iron levels in nasal exudate. <b><i>Results:</i></b> The iron levels in nasal exudate were higher in hemorrhagic stroke patients. The area under the receiver operating characteristic curve for ischemic/hemorrhagic stroke discrimination was 0.896 (95% confidence interval 0.823–0.970) and cutoff point of 0.078 nmol/mg (sensitivity 93%, specificity 73%). <b><i>Conclusions:</i></b> Our findings suggest that iron levels in nasal exudate may be useful in the acute stage for the differential diagnosis between ischemic and hemorrhagic damage in acute stroke patients. They also open a potential field to study other biomarkers in nasal exudate in several neurological disorders. Clinical studies must be performed to confirm our results.

2021 ◽  
Vol 43 (1) ◽  
pp. 324-334
Author(s):  
Francisco J. Julián-Villaverde ◽  
Laura Ochoa-Callejero ◽  
Eva Siles ◽  
Esther Martínez-Lara ◽  
Alfredo Martínez

Hemorrhagic stroke remains an important health challenge. Adrenomedullin (AM) is a vasoactive peptide with an important role in cardiovascular diseases, including stroke. Serum AM and nitrate–nitrite and S-nitroso compounds (NOx) levels were measured and compared between healthy volunteers (n = 50) and acute hemorrhagic stroke patients (n = 64). Blood samples were taken at admission (d0), 24 h later (d1), and after 7 days or at the time of hospital discharge (d7). Neurological severity (NIHSS) and functional prognosis (mRankin) were measured as clinical outcomes. AM levels were higher in stroke patients at all times when compared with healthy controls (p < 0.0001). A receiving operating characteristic curve analysis identified that AM levels at admission > 69.0 pg/mL had a great value as a diagnostic biomarker (area under the curve = 0.89, sensitivity = 80.0%, specificity = 100%). Furthermore, patients with a favorable outcome (NIHSS ≤ 3; mRankin ≤ 2) experienced an increase in AM levels from d0 to d1, and a decrease from d1 to d7, whereas patients with unfavorable outcome had no significant changes over time. NOx levels were lower in patients at d0 (p = 0.04) and d1 (p < 0.001) than in healthy controls. In conclusion, AM levels may constitute a new diagnostic and prognostic biomarker for this disease, and identify AM as a positive mediator for hemorrhagic stroke resolution.


2009 ◽  
Vol 32 (2) ◽  
pp. 151 ◽  
Author(s):  
Ning Wang ◽  
Dawei Qiao ◽  
Weijun Tong ◽  
Fengshan Zhang ◽  
Zhong Ju ◽  
...  

Purpose: There is still controversy about the association between admission blood glucose concentration and outcome of acute stroke. We studied the association between admission blood glucose and in-hospital death / dependency among acute stroke patients in Inner Mongolia, China. Methods: 2,178 acute ischemic and 1,760 hemorrhagic stroke patients in six hospitals were included in the study. Blood glucose and other study variables were collected within the first 24-hr of hospital admission. Clinical outcomes were evaluated by neurologists during hospitalization. The associations between admission blood glucose and the risk of in-hospital death/dependency were analyzed using a multiple logistic model. Results: There were associations between admission blood glucose and in-hospital death/dependency among patients with acute ischemic or hemorrhagic stroke. Compared with patients with blood glucose < 6.1mmol/L, multivariate-adjusted odds ratio (95% confidence interval) of death/dependency were 0.53 (0.23, 1.27), 2.22 (1.21, 4.11), 1.92 (1.12, 3.33) and 1.91 (1.00, 3.64) for ischemic stroke patients, and 0.93 (0.44, 1.96), 1.42 (0.65, 3.10), 1.98 (1.10, 3.55) and 2.93 (1.40, 6.11) for hemorrhagic stroke patients, with blood glucose 6.1-6.9, 7.0-7.7, 7.8-11.0 and ?11.1mmol/L, respectively. Conclusion: Increased admission blood glucose was associated with death/dependency among patients with acute hemorrhagic and ischemic stroke.


Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Patty Noah ◽  
Melanie Henderson ◽  
Rebekah Heintz ◽  
Russell Cerejo ◽  
Christopher T Hackett ◽  
...  

Introduction: Dysphagia occurs in up to two thirds of stroke patients and can lead to serious complications such as aspiration pneumonia, which is also linked to increased morbidity and mortality. Evidence-based guidelines recommend a bedside dysphagia assessment before oral intake in stroke patients regardless of initial stroke severity. Several studies have described registered nurses’ competency in terms of knowledge and skills regarding dysphagia screening. We aimed to examine the rate of aspiration pneumonia compared to the rate of dysphagia screening. Methods: A retrospective analysis of prospectively collected data at a single tertiary stroke center was carried out between January 2017 and June 2020. Data comparison was completed utilizing ICD-10 diagnosis codes to identify aspiration pneumonia in ischemic and hemorrhagic stroke patients. The data was reviewed to compare the compliance of a completed dysphagia screen prior to any oral intake to rate of aspiration pneumonia. Chi square tests were used to assess proportion differences in completed dysphagia screen and proportion of aspiration pneumonia diagnosis in the ischemic and hemorrhagic stroke patients. Results: We identified 3320 patient that met inclusion criteria. 67% were ischemic strokes, 22% were intracerebral hemorrhages and 11% were subarachnoid hemorrhages. Compliance with dysphagia screening decreased from 94.2% (n=1555/1650) in 2017-2018 to 74.0% (n=1236/1670) in 2019-2020, OR=0.17 (95%CI 0.14 - 0.22), p < 0.0001. Aspiration pneumonias increased from 58 (3.5%) in 2017-2018 to 77 (4.6%) in 2019-2020, but this difference was not statistically significant, OR=0.75 (95%CI 0.53 - 1.07), p = 0.11. Conclusion: We noted that the decrease in compliance with completing a dysphagia screen in patients with acute stroke prior to any oral intake was associated with a higher trend of aspiration pneumonia.


2020 ◽  
Vol 83 (1) ◽  
pp. 49-55
Author(s):  
Hiroyuki Uwatoko ◽  
Masahiro Nakamori ◽  
Eiji Imamura ◽  
Takeshi Imura ◽  
Kazunori Okada ◽  
...  

Introduction: Since independent gait is an important factor for home discharge, early prediction of independent gait after stroke is essential. The revised version of the Ability for Basic Movement Scale II (ABMS II) has been developed and validated for assessment of basic movements poststroke. Objective: The purpose of this study was to investigate the predictive value of the ABMS II score for independent gait in acute stroke patients with hemiplegia. Methods: We included 67 patients with first stroke and a unilateral lesion who were admitted to the stroke care unit. We evaluated the gait on the 14th and 90th days from admission. Results: The ABMS II score was significantly higher in patients with independent gait on both the 14th and 90th days from admission. On receiver operating characteristic curve analysis, a minimum score of 26 points was predictive of independent gait on the 14th day from admission. Similarly, a score of 15 points was predictive of independent gait on the 90th day from admission. Conclusions: The ABMS II score is a useful predictor of independent gait in acute stroke patients with hemiplegia.


2020 ◽  
Vol 24 (4) ◽  
pp. 363-368
Author(s):  
Mukhtiar Ahmed ◽  
Aziz Ur Rehman ◽  
Safdar Ali Pervez ◽  
Farrukh Imtaiz ◽  
Abdul Razaque ◽  
...  

Objective:  Electrolyte imbalance is common in acute stroke; it may cause severe morbidity and mortality, so timely management of electrolyte imbalance may improve morbidity and mortality in cerebro-vascular accident. The purpose of this study was to evaluate electrolyte imbalance in acute stroke and its effect on the outcome of patients. Material and Methods:  This study was prospective descriptive in nature and it is comprised of 106 patients of acute stroke after clinically diagnosis confirmed by CT scan brain plain admitted in Khairpur Medical College Hospital. Serum electrolyte along with the other baseline investigation was performed. Results:  Hyponatremia was comparatively more common in brain infraction than spontaneous ICH. Hypokalemia is also more common in brain infarction as compared to the hemorrhagic stroke patients of this study. Conclusion:  Incidence of Hyponatremia was more common than hypokalemia in patients with acute stroke. Keywords:  Hemorrhage, Infraction, Hyponatremia, Hypokalemia.


Author(s):  
Meiriani . ◽  
Yuneldi Anwar ◽  
Puji Pinta Omas Sinurat

Background: Diabetes and higher HbA1c level have increased the incidence of stroke. Hemoglobin levels both high and low are associated with poor outcomes. Leukocytes play an important role in the initiation of the atherosclerosis process.Methods: This was a cross-sectional study with a sample size of 62 people selected by non-random sampling method on a consecutive basis, patients with acute stroke were taken blood to measure blood glucose levels, HbA1c, Hb and Leucocytes when entering the hospital room. Outcomes were assessed using NIHSS and MRS. The calculation of NIHSS and MRS scores was performed on the first day of admission and the fourteenth day. To analyze the correlation of blood sugar levels during HbA1c, Hb and leukocytes in acute stroke, this study used Spearman's correlation test. The p value <0.05 was considered statistically significant.Results: The study subjects of 62 acute stroke patients (acute ischemic stroke 31 people and 31 people hemorrhagic stroke). Acute stroke patients were consisted of 38 men (61.3%) and 24 women (38.7%). Of 31 people with hemorrhagic stroke, there were 16 men (51.6%) and 15 women (48.4%), ischemic stroke patients were consisted of 22 people (71, 0%) and women were 9 people. Spearrman repair test showed no symptoms between blood glucose levels, HbA1c, Hemoglobin and leukocytes with outcomes in acute stroke.Conclusions: There was no significant association between blood glucose levels, HbA1c, hemoglobin and leukocytes with outcomes in acute stroke.


Stroke ◽  
2000 ◽  
Vol 31 (1) ◽  
pp. 82-85 ◽  
Author(s):  
N. G. Wahlgren ◽  
E. Díez-Tejedor ◽  
J. Teitelbaum ◽  
A. Arboix ◽  
D. Leys ◽  
...  

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Xin Tong ◽  
Sallyann Coleman King ◽  
Erika Odom ◽  
Quanhe Yang

Introduction: Studies suggest a significant reduction in emergency department visits and hospitalizations for acute ischemic stroke (AIS) during the COVID-19 pandemic in the United States. Few studies have examined AIS hospitalizations, treatments, and outcomes during the pandemic period. The present study compared the demographic and clinical characteristics of patients hospitalized with AIS before and during the COVID-19 pandemic (weeks 11-24 in 2019 vs. 2020). Method: We identified 42,371 admissions with a clinical diagnosis of AIS, from 370 participating hospitals who contributed data during weeks 11-24 in both 2019 and 2020 to the Paul Coverdell National Acute Stroke Program (PCNASP). Results: During weeks 11-24 of the COVID-19 period, AIS hospitalizations declined by 24.5% compared to the same period in 2019 (18,233 in 2020 vs. 24,138 in 2019). In 2020, the percentage of individuals aged <65 years who were hospitalized with AIS was higher compared with the same period in 2019 (34.6% vs. 32.7%, p<0.001); arriving by EMS were higher in 2020 compared with 2019 (47.7% vs. 44.8%, p<0.001). Individuals admitted with AIS in 2020 had a higher mean National Institutes of Health Stroke Scale (NIHSS) score compared with 2019 (6.7 vs. 6.3, p<0.001). In 2020, the in-hospital death rates increased by 16% compared to 2019 (5.0% vs. 4.3%, p<0.001). However, there were no differences in rates of alteplase use, achievement of door to needle in 60 minutes, or complications from reperfusion therapy between the two time periods. Conclusion: A higher percentage of younger (<65 years) individuals and more severe AIS cases were admitted to the participating hospitals during weeks 11 to 24 of the COVID-19 pandemic in 2020 compared to the same period in 2019. The AIS in-hospital death rate increased 16% during the pandemic weeks as compared to the same weeks in 2019. Additional studies are needed to examine the impacts of the COVID-19 pandemic on stroke treatment and outcomes.


Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 943
Author(s):  
Yoichi Sato ◽  
Yoshihiro Yoshimura ◽  
Takafumi Abe

Malnutrition is associated with poor clinical outcomes in stroke patients. The effect of early nutritional intake after admission on home discharge is unclear. We evaluated the impact of energy intake in the first week of hospitalization of acute stroke patients on home discharge and activities of daily living (ADL). A retrospective cohort study was conducted with 201 stroke patients admitted to an acute care hospital in Japan. The energy and protein intake during the first week were evaluated. Multivariate models were used to estimate variables related to discharge destination and ADL at discharge. The cut-off point of nutritional intake for determining the discharge destination was evaluated using the receiver operating characteristic curve. Out of 163 patients included in the analysis, 89 (54.6%) and 74 (45.4%) were discharged home and elsewhere, respectively. Those discharged home had higher energy and protein intake than those discharged elsewhere. In multiple regression analysis, energy intake was independently associated with ADL at discharge and home discharge (odds ratio 1.146). Those with energy intake >20.7 kcal/kg/day had higher ADL at discharge and more patients discharged home than those with energy intake <20.7 kcal/kg/day. Energy intake during the first week affected home discharge in acute stroke patients.


Author(s):  
AL RASYID ◽  
SALIM HARRIS ◽  
MOHAMMAD KURNIAWAN ◽  
TAUFIK MESIANO ◽  
RAKHMAD HIDAYAT ◽  
...  

Objective: The aim of this study was to identify reasons acute stroke patients did not receive thrombolysis despite meeting Code Stroke activation criteria in Cipto Mangunkusumo General Hospital during November 2015 until February 2019. Methods: This study retrospectively collected data of adult (aged>18 y old) acute stroke patients admitted to Cipto Mangunkusumo General Hospital from November 2015 to February 2019 who met criteria for Code Stroke activation but did not undergo thrombolysis. Patient’ data were collected from Code Stroke Registry of Cipto Mangunkusumo General Hospital. Results: There were 518 acute stroke patients who had Code Stroke activated in Cipto Mangunkusumo General Hospital from November 2015 to February 2019. 76.3% of acute stroke patients did not receive thrombolytic therapy (n=395). Hemorrhage on computed tomography (CT) scan was the most common reason patients did not receive thrombolysis. The following most common reasons were low or improved National Institutes of Health Stroke Scale (NIHSS) score, family refusal, and exceedance of time window. Conclusion: Hemorrhage on CT scan was the most common reason patients did not receive thrombolysis following by low or improved NIHSS score, family refusal, and exceedance of time window.


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