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Item type:Publication, Collateral status predicts functional outcome in early-treated large-core anterior circulation stroke(Frontiers Media SA, 2026-04-14); 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Emergency Department Workflow Times of Intravenous Thrombolysis with Tenecteplase versus Alteplase in Acute Ischemic Stroke: A Prospective Cohort Study before and during the COVID-19 Pandemic(S. Karger AG, 2025-02-03); Scopus© Citations 2 2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Patient centered outcomes in stroke: utility-weighted modified Rankin Scale results in a community-based study(Frontiers Media SA, 2025-03-21); ; Background and aims</jats:title><jats:p>The transformation of modified Rankin Scale (mRS) scores based on the corresponding utilities of health-related quality of life questionnaires can facilitate the capture of Patient-Centered Outcomes (PCO) in stroke. We aimed to derive utility-weighted modified Rankin Scale (UW-mRS) values by mapping mRS functional status to EQ-5D-3L scores in a population-based cohort of stroke patients.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>The UW-mRS was obtained by analyzing the EQ5-D-3 L and mRS scores at 180 days after any stroke in the ÑANDU study, a large prospective community-based study in Chile. The mRS prediction was estimated using a linear regression adjusted by the EQ-5D-3L value. Generalized linear and binary logistic regression models were constructed to determine influencing factors of the UW-mRS, using STATA software (version 18.0).</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>We included 773 patients presenting with any stroke during 2015–2016: 48% were female, with a mean age of 71 years (SD 13.8), and 85% had an acute ischemic stroke (AIS). 82% of patients had a low socioeconomic status, 50% had less than 12 years of formal education, and only 32% lived in urban areas. UW-mRS values for mRS categories 0–6 at 180 days were 0.913, 0.694, 0.425, 0.249, −0.102, −0.347 and 0, respectively. Multivariable analysis identified age &gt; 70 years (Coefficient <jats:italic>β</jats:italic> [β] -0.038 [Standard error SE 0.018], <jats:italic>p</jats:italic> = 0.032), prior mRS score 3–5 (<jats:italic>β</jats:italic> −0.556 [SE 0.197], <jats:italic>p</jats:italic> &lt; 0.001), ischemic stroke (β −0.066 [SE 0.025], <jats:italic>p</jats:italic> = 0.010), and National Institutes of Health Stroke Scale (NIHSS) at admission&gt;5 (<jats:italic>β</jats:italic> −0.015 [SE 0.002], <jats:italic>p</jats:italic> &lt; 0.001) as significant predictors of worse UW-mRS scores (R<jats:sup>2</jats:sup> = 70%) in the overall group. Sex-disaggregated analysis showed that age &gt; 70 years was a significant predictor in males (β −0.069 [SE 0.024], <jats:italic>p</jats:italic> = 0.006), while presenting an AIS had a greater impact on female’s worse UW-mRS score (β −0.087 [SE 0.033], <jats:italic>p</jats:italic> = 0.010).</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>These results present UW-mRS values derived from a population-based stroke study. Key determinants of health-related quality of life in post-stroke patients included age, prior disability, and stroke severity. Sex-disaggregated analysis revealed age being significant for males and AIS for females. Incorporating PCO as UW-mRS in stroke research can provide a more nuanced understanding of the impact of stroke on survivors, offering valuable insights for clinical decision-making and rehabilitation strategies across diverse healthcare contexts.<Scopus© Citations 1 6 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Clinical and Radiological Differences between Patients Diagnosed with Acute Ischemic Stroke and Chameleons at the Emergency Room: Insights from a Single-Center Observational Study(S. Karger AG, 2024-07-18); ; ; ; Gabriel Cavada<jats:p><b><i>Introduction:</i></b> Scarce data exist about clinical/radiological differences between acute ischemic strokes diagnosed in the emergency room (AISER) and stroke chameleons (SCs). We aimed at describing the differences observed in a comprehensive stroke center in Chile. <b><i>Methods:</i></b> Prospective observational study of patients with ischemic stroke syndromes admitted to the emergency room (ER) of Clínica Alemana between December 2014 and October 2023. <b><i>Results:</i></b> 1,197 patients were included; of these 63 (5.2%, 95% CI: 4.1–6.6) were SC; these were younger (<i>p</i> &lt; 0.001), less frequently hypertensive (<i>p</i> = 0.03), and they also had lower systolic (SBP) (<i>p</i> &lt; 0.001), diastolic blood pressures (DBP) (<i>p</i> = 0.011), and NIHSS (<i>p</i> &lt; 0.001). Clinically, they presented less frequently gaze (<i>p</i> = 0.008) and campimetry alterations (<i>p</i> = 0.03), facial (<i>p</i> &lt; 0.001) and limb weakness (left arm [<i>p</i> = 0.004], right arm (<i>p</i> = 0.041), left leg (<i>p</i> = 0.001), right leg <i>p</i> = 0.0029), sensory abnormalities (<i>p</i> &lt; 0.001), and dysarthria (<i>p</i> &lt; 0.001). Neuroradiological evaluations included less frequently large vessel occlusions (<i>p</i> = 0.01) and other stroke locations (<i>p</i> = 0.005); they also differed in their etiologies (<i>p</i> &lt; 0.001). Brainstem strokes (<i>p</i> &lt; 0.001) and extinction/inattention symptoms (<i>p</i> &lt; 0.001) were only seen in AISER. In multivariate analysis, younger age (OR: 0.945; 95% CI: 0.93–0.96), DBP (OR: 0.97; 95% CI, 0.95–0.99), facial weakness (OR: 0.39; 95% CI: 0.19–0.78), sensory abnormities (OR: 0.16.18; 95% CI, 0.05–0.4), infratentorial location (OR: 0.36; 95% CI, 0.15–0.78), posterior circulation involvement (OR: 3.02; 95% CI, 1.45–6.3), cardioembolic (OR: 3.5; 95% CI, 1.56–7.99), and undetermined (OR: 2.42; 95% CI, 1.22–4.7; 95%) etiologies, remained statistically significant. A stepwise analysis including only clinical elements present on the patient’s arrival to the ER, demonstrates that age (OR: 0.95; 95% CI: 0.94–0.97), DBP (OR: 0.97; 95% CI, 0.95–0.99), the presence of atrial fibrillation (OR: 2.22; 95% CI, 1.04–4.75, NIHSS (OR: 0.88; 95% CI, 0.71–0.89) and the presence in NIHSS of 1a level of consciousness (OR: 5.66; CI: 95% 1.8–16.9), 1b level of consciousness questions (OR: 3.023; 95% CI, 1.35–6.8), facial weakness (OR: 0.3; CI: 95% 0.17–0.8), and sensory abnormalities (OR: 0.27; 95% CI, 0.1–0.72) remained statistically significant. <b><i>Conclusion:</i></b> SC had clinical and radiological differences compared to AISER. An additional relevant finding is that neurological symptoms in a patient with atrial fibrillation, even with a negative diffusion-weighted imaging, should be carefully evaluated as a potential stroke until other causes are satisfactorily ruled out. </jats:p>Scopus© Citations 1 6 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Efficacy of an avocado-based Mediterranean diet on serum lipids for secondary prevention after ischemic stroke: a randomized phase 2 controlled pilot trial(Springer Science and Business Media LLC, 2025-02-04); ; Scopus© Citations 7 4 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Clinical Profile of Stroke Chameleons Receiving Intravenous Thrombolysis: Insights from a Single-Center Experience(S. Karger AG, 2024-11-13); ; ; ; Eloy Mansilla<jats:p>Introduction: In emergency rooms (ERs), 5% of patients experiencing an acute ischemic stroke (AIS) receive an alternative diagnosis; these cases are known as stroke chameleons (SC). The percentage of SC treated with intravenous thrombolysis (IVT) and the characteristics have not been well described. We aimed at investigating the variables associated with the probability receiving IVT. Methods: In this prospective study, we included consecutive patients with SC admitted at the ER of Clínica Alemana between September 2014 and October 2023. Results: Among 1,193 stroke patients; sixty-three (5.2%) corresponded to SC. Ten of these cases (15.8%, 95% CI: 8.8–26.8) were treated with IVT, mean door-to-needle (DTN) time of 85.7 (SD 35) min, median of 73.5 (IQR 62–113) min. SCs who underwent IVT were younger (p = 0.01), with higher NIHSS (p = 0.05). They presented more frequently with altered level of consciousness in the NIHSS (p = 0.01), language abnormities (p = 0.001), and dysarthria (p = 0.01). In multivariate analysis, none of the variables were significantly associated with IVT. A secondary analysis showed that only time to brain imaging was significantly associated with IVT (OR: 0.99; 95% CI: 0.98–0.99; p = 0.01). Conclusions: Almost 1 out of every 7 SC could be treated with IVT but with a prolonged DTN time; the chance of being treated is associated with time to brain imaging. <p>Introduction: In emergency rooms (ERs), 5% of patients experiencing an acute ischemic stroke (AIS) receive an alternative diagnosis; these cases are known as stroke chameleons (SC). The percentage of SC treated with intravenous thrombolysis (IVT) and the characteristics have not been well described. We aimed at investigating the variables associated with the probability receiving IVT. Methods: In this prospective study, we included consecutive patients with SC admitted at the ER of Clínica Alemana between September 2014 and October 2023. Results: Among 1,193 stroke patients; sixty-three (5.2%) corresponded to SC. Ten of these cases (15.8%, 95% CI: 8.8–26.8) were treated with IVT, mean door-to-needle (DTN) time of 85.7 (SD 35) min, median of 73.5 (IQR 62–113) min. SCs who underwent IVT were younger (p = 0.01), with higher NIHSS (p = 0.05). They presented more frequently with altered level of consciousness in the NIHSS (p = 0.01), language abnormities (p = 0.001), and dysarthria (p = 0.01). In multivariate analysis, none of the variables were significantly associated with IVT. A secondary analysis showed that only time to brain imaging was significantly associated with IVT (OR: 0.99; 95% CI: 0.98–0.99; p = 0.01). Conclusions: Almost 1 out of every 7 SC could be treated with IVT but with a prolonged DTN time; the chance of being treated is associated with time to brain imaging. </p></jats:p>1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Sex Differences in Profile and In‐Hospital Death for Acute Stroke in Chile: Data From a Nationwide Hospital Registry(2024)1Scopus© Citations 3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, How the characteristics of pediatric neurologists in Latin America influence the communication of sudden unexpected death in epilepsy to patients and caregivers(2022)10Scopus© Citations 4 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Correlation between dual-phase CTA-SI ASPECTS and automated CT perfusion imaging in patients with acute ischemic stroke beyond the 6-hour window(2023); 4