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1.
N Engl J Med ; 390(8): 701-711, 2024 Feb 22.
Article in English | MEDLINE | ID: mdl-38329148

ABSTRACT

BACKGROUND: Thrombolytic agents, including tenecteplase, are generally used within 4.5 hours after the onset of stroke symptoms. Information on whether tenecteplase confers benefit beyond 4.5 hours is limited. METHODS: We conducted a multicenter, double-blind, randomized, placebo-controlled trial involving patients with ischemic stroke to compare tenecteplase (0.25 mg per kilogram of body weight, up to 25 mg) with placebo administered 4.5 to 24 hours after the time that the patient was last known to be well. Patients had to have evidence of occlusion of the middle cerebral artery or internal carotid artery and salvageable tissue as determined on perfusion imaging. The primary outcome was the ordinal score on the modified Rankin scale (range, 0 to 6, with higher scores indicating greater disability and a score of 6 indicating death) at day 90. Safety outcomes included death and symptomatic intracranial hemorrhage. RESULTS: The trial enrolled 458 patients, 77.3% of whom subsequently underwent thrombectomy; 228 patients were assigned to receive tenecteplase, and 230 to receive placebo. The median time between the time the patient was last known to be well and randomization was approximately 12 hours in the tenecteplase group and approximately 13 hours in the placebo group. The median score on the modified Rankin scale at 90 days was 3 in each group. The adjusted common odds ratio for the distribution of scores on the modified Rankin scale at 90 days for tenecteplase as compared with placebo was 1.13 (95% confidence interval, 0.82 to 1.57; P = 0.45). In the safety population, mortality at 90 days was 19.7% in the tenecteplase group and 18.2% in the placebo group, and the incidence of symptomatic intracranial hemorrhage was 3.2% and 2.3%, respectively. CONCLUSIONS: Tenecteplase therapy that was initiated 4.5 to 24 hours after stroke onset in patients with occlusions of the middle cerebral artery or internal carotid artery, most of whom had undergone endovascular thrombectomy, did not result in better clinical outcomes than those with placebo. The incidence of symptomatic intracerebral hemorrhage was similar in the two groups. (Funded by Genentech; TIMELESS ClinicalTrials.gov number, NCT03785678.).


Subject(s)
Brain Ischemia , Ischemic Stroke , Perfusion Imaging , Tenecteplase , Thrombectomy , Tissue Plasminogen Activator , Humans , Brain Ischemia/diagnostic imaging , Brain Ischemia/drug therapy , Brain Ischemia/mortality , Brain Ischemia/surgery , Fibrinolytic Agents/administration & dosage , Fibrinolytic Agents/adverse effects , Fibrinolytic Agents/therapeutic use , Intracranial Hemorrhages/chemically induced , Intracranial Hemorrhages/diagnostic imaging , Perfusion , Perfusion Imaging/methods , Stroke/diagnostic imaging , Stroke/drug therapy , Stroke/mortality , Stroke/surgery , Tenecteplase/administration & dosage , Tenecteplase/adverse effects , Tenecteplase/therapeutic use , Thrombectomy/adverse effects , Thrombectomy/methods , Tissue Plasminogen Activator/administration & dosage , Tissue Plasminogen Activator/adverse effects , Tissue Plasminogen Activator/therapeutic use , Treatment Outcome , Double-Blind Method , Ischemic Stroke/diagnostic imaging , Ischemic Stroke/drug therapy , Ischemic Stroke/mortality , Ischemic Stroke/surgery , Infarction, Middle Cerebral Artery/diagnostic imaging , Infarction, Middle Cerebral Artery/drug therapy , Infarction, Middle Cerebral Artery/surgery , Carotid Artery Diseases/diagnostic imaging , Carotid Artery Diseases/drug therapy , Carotid Artery Diseases/surgery , Brain/blood supply , Brain/diagnostic imaging , Time-to-Treatment
2.
Ann Neurol ; 95(5): 858-865, 2024 May.
Article in English | MEDLINE | ID: mdl-38481016

ABSTRACT

OBJECTIVE: There are limited data evaluating the optimum blood pressure (BP) goal post mechanical thrombectomy (MT) and its effect on outcomes of patients with large vessel occlusions (LVO). The objective of this study was to compare the efficacy and safety of intensive versus conventional BP control after reperfusion with MT via a systematic review and meta-analysis of randomized controlled trials (RCTs). METHODS: We searched PubMed and Embase to obtain articles related to BP control post MT through September 2023. The primary outcome was functional independence (modified Rankin Scale [mRS] 0-2) at 3 months, while secondary outcomes included excellent outcome (mRS 0-1), symptomatic intracranial hemorrhage (sICH), and mortality. RESULTS: Four RCTs with 1,566 patients (762 randomized into intensive BP control vs. 806 randomized into conventional BP control) were included. Analysis showed that there was a lower likelihood of functional independence (mRS 0-2: odds ratio [OR]: 0.68, 95% confidence interval [CI] 0.51-0.91, p = 0.009) in the more intensive treatment group compared with the conventional treatment group. There was no statistically significant difference in achieving excellent outcome (mRS0-1: OR: 0.82, 95% CI: 0.63-1.07; p = 0.15), risk of sICH or mortality. INTERPRETATION: This systematic review and meta- analysis Indicates that in patients who achieved successful MT for acute ischemic stroke with LVO, intensive BP control was associated with a lower likelihood of functional independence at 3 months without significant difference in likelihood of achieving excellent outcome, sICH risk, or mortality. ANN NEUROL 2024;95:858-865.


Subject(s)
Blood Pressure , Endovascular Procedures , Randomized Controlled Trials as Topic , Humans , Blood Pressure/physiology , Endovascular Procedures/methods , Ischemic Stroke/therapy , Ischemic Stroke/surgery , Randomized Controlled Trials as Topic/methods , Thrombectomy/methods , Treatment Outcome
3.
Ann Neurol ; 95(3): 576-582, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38038962

ABSTRACT

OBJECTIVE: Telestroke (TS) service has been shown to improve stroke diagnosis timing and accuracy, facilitate treatment decisions, and decrease interfacility transfers. Expanding TS service to inpatient units at the community hospital provides an opportunity to follow up on stroke patients and optimize medical management. This study examines the outcome of expanding TS coverage from acute emergency room triage to incorporate inpatient consultation. METHODS: We studied the effect of expanding TS to inpatient consultation service at 19 regional hospitals affiliated with Promedica Stroke Network. We analyzed data pre- and post-TS expansion. We reviewed changes in TS utilization, admission rate, thrombolytic therapy, patient transfer rate, and diagnosis accuracy. RESULTS: Between January 2018 and June 2022, a total of 9,756 patients were evaluated in our stroke network (4,705 in pre- and 5,051 in the post-TS expansion). In the post-TS expansion period, stroke patients' admission at the spoke hospital increased from 18/month to 40/month, and for TIA from 11/month to 16/month. TS cart use increased from 12% to 35.2%. Patient transfers to hub hospital decreased by 31%. TS service expansion did not affect intravenous thrombolytic therapy rate or door-to-needle time. There was no difference in length of stay or readmission rate, and the patients at the spoke hospitals had a higher rate of home discharge 57.38% compared with 52.58% at hub hospital. INTERPRETATION: Telestroke service expansion to inpatient units helped decrease transfers and retain patients in their communities, increased stroke and TIA diagnosis accuracy, and did not compromise patients' hospitalization or outcome. ANN NEUROL 2024;95:576-582.


Subject(s)
Ischemic Attack, Transient , Stroke , Telemedicine , Humans , Tissue Plasminogen Activator , Hospitals, Community , Ischemic Attack, Transient/drug therapy , Time Factors , Stroke/therapy , Stroke/drug therapy , Fibrinolytic Agents/adverse effects , Thrombolytic Therapy/adverse effects , Treatment Outcome
4.
Stroke ; 55(7): 1808-1817, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38913799

ABSTRACT

BACKGROUND: Tandem lesions consist of cervical internal carotid artery (ICA) stenosis or occlusion, most commonly of atherosclerosis or dissection etiology, plus a large vessel occlusion. In this study, we compare outcomes in patients with atherosclerosis versus dissection of the cervical ICA. METHODS: This multicenter retrospective cohort study includes data from tandem lesion patients who underwent endovascular treatment from 2015 to 2020. Atherosclerosis was defined as ICA stenosis/occlusion associated with a calcified lesion and dissection by the presence of a tapered or flame-shaped lesion and intramural hematoma. Primary outcome: 90-day functional independence (modified Rankin Scale score, 0-2); secondary outcomes: 90-day favorable shift in the modified Rankin Scale score, modified Thrombolysis in Cerebral Infarction score 2b-3, modified Thrombolysis in Cerebral Infarction score 2c-3, symptomatic intracranial hemorrhage, parenchymal hematoma type 2, petechial hemorrhage, distal embolization, early neurological improvement, and mortality. Analysis was performed with matching by inverse probability of treatment weighting. RESULTS: We included 526 patients (68 [59-76] years; 31% females); 11.2% presented dissection and 88.8%, atherosclerosis. Patients with dissection were younger, had lower rates of hypertension, hyperlipidemia, diabetes, and smoking history. They also exhibited higher rates of ICA occlusion, multiple stents (>1), and lower rates of carotid self-expanding stents. After matching and adjusting for covariates, there were no differences in 90-day functional independence. The rate of successful recanalization was significantly lower in the dissection group (adjusted odds ratio, 0.38 [95% CI, 0.16-0.91]; P=0.031), which also had significantly higher rates of distal emboli (adjusted odds ratio, 2.53 [95% CI, 1.15-5.55]; P=0.021). There were no differences in other outcomes. Acute ICA stenting seemed to increase the effect of atherosclerosis in successful recanalization. CONCLUSIONS: This study reveals that among patients with acute stroke with tandem lesions, cervical ICA dissection is associated with higher rates of distal embolism and lower rates of successful recanalization than atherosclerotic lesions. Using techniques to minimize the risk of distal embolism may mitigate this contrast. Further prospective randomized trials are warranted to fully understand these associations.


Subject(s)
Endovascular Procedures , Humans , Female , Middle Aged , Male , Aged , Retrospective Studies , Endovascular Procedures/methods , Carotid Artery, Internal, Dissection/diagnostic imaging , Carotid Artery, Internal, Dissection/surgery , Carotid Artery, Internal, Dissection/therapy , Carotid Stenosis/surgery , Carotid Stenosis/complications , Treatment Outcome , Embolism
5.
Stroke ; 55(7): 1767-1775, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38748598

ABSTRACT

BACKGROUND: Studies comparing bridging intravenous thrombolysis (IVT) with direct endovascular therapy (EVT) in patients with acute ischemic stroke who present late are limited. We aimed to compare the clinical outcomes and safety of bridging IVT in patients with acute ischemic stroke due to anterior circulation large vessel occlusion who underwent EVT 6 to 24 hours after time last known well. METHODS: We enrolled patients with anterior circulation large vessel occlusion stroke and a National Institutes of Health Stroke Scale score of ≥6 from 20 centers across 10 countries in the multicenter retrospective CLEAR study (CT for Late Endovascular Reperfusion) between January 2014 and May 2022. We used inverse probability of treatment weighting modeling adjusted for clinical and imaging confounders to compare functional outcomes, reperfusion success, symptomatic intracranial hemorrhage, and mortality between EVT patients with and without prior IVT. RESULTS: Of 5098 patients screened for eligibility, we included 2749 patients, of whom 549 received bridging IVT before EVT. The timing of IVT was not recorded. Witnessed stroke onset and transfer rates were higher in the bridging IVT group (25% versus 12% and 77% versus 55%, respectively, P value for both <0.0001), and time intervals between stroke onset and treatment were shorter (time last known well-start of EVT median 560 minutes [interquartile range, 432-791] versus 724 minutes [interquartile range, 544-912]; P<0.0001). After adjustment for confounders, there was no difference in functional outcome at 3 months (adjusted common odds ratio for modified Rankin Scale shift, 1.03 [95% CI, 0.89-1.19]; P=0.72) or successful reperfusion (adjusted odds ratio, 1.19 [95% CI, 0.81-1.75]; P=0.39). There were no safety concerns associated with bridging IVT versus direct EVT (symptomatic intracranial hemorrhage: adjusted odds ratio, 0.75 [95% CI, 0.38-1.48]; P=0.40; mortality: adjusted odds ratio, 1.14 [95% CI, 0.89-1.46]; P=0.31). Results were unchanged when the analysis was limited to patients who received IVT >6 hours after last known well. CONCLUSIONS: In patients with an anterior circulation large vessel occlusion stroke who underwent EVT 6 to 24 hours from last known well, bridging IVT was not associated with a difference in outcomes compared with direct EVT. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04096248.


Subject(s)
Endovascular Procedures , Ischemic Stroke , Thrombolytic Therapy , Humans , Male , Female , Aged , Ischemic Stroke/therapy , Ischemic Stroke/drug therapy , Ischemic Stroke/surgery , Endovascular Procedures/methods , Middle Aged , Thrombolytic Therapy/methods , Treatment Outcome , Retrospective Studies , Aged, 80 and over , Fibrinolytic Agents/therapeutic use , Fibrinolytic Agents/administration & dosage , Time-to-Treatment , Brain Ischemia/drug therapy , Brain Ischemia/therapy
6.
Stroke ; 55(2): 278-287, 2024 02.
Article in English | MEDLINE | ID: mdl-38252759

ABSTRACT

BACKGROUND: The association between sex and outcome after endovascular thrombectomy of acute ischemic stroke is unclear. The aim of this study was to compare the clinical and safety outcomes between men and women treated with endovascular thrombectomy in the late 6-to-24-hour window period. METHODS: This multicenter, retrospective observational cohort study included consecutive patients who underwent endovascular thrombectomy of anterior circulation stroke in the late window from 66 clinical sites in 10 countries from January 2014 to May 2022. The primary outcome was the 90-day ordinal modified Rankin Scale score. Secondary outcomes included 90-day functional independence (FI), return of Rankin (RoR) to prestroke baseline, FI or RoR, symptomatic intracranial hemorrhage, and mortality. Multivariable and inverse probability of treatment weighting methods were used. We explored the interaction of sex with baseline characteristics on the outcomes ordinal modified Rankin Scale and FI or RoR. RESULTS: Of 1932 patients, 1055 were women and 877 were men. Women were older (77 versus 69 years), had higher rates of atrial fibrillation, hypertension, and greater prestroke disability, but there was no difference in baseline National Institutes of Health Stroke Scale score. Inverse probability of treatment weighting analysis showed no difference between women and men in ordinal modified Rankin Scale (odds ratio, 0.98 [95% CI, 0.79-1.21]), FI or RoR (odds ratio, 0.98 [95% CI, 0.78-1.22]), severe disability or mortality (odds ratio, 0.99 [95% CI, 0.80-1.23]). The multivariable analysis of the above end points was concordant. There were no interactions between baseline characteristics and sex on the outcomes of ordinal modified Rankin Scale and FI or RoR. CONCLUSIONS: In late presenting patients with anterior circulation stroke treated with endovascular thrombectomy in the 6 to 24-hour window, there was no difference in clinical or safety outcomes between men and women.


Subject(s)
Atrial Fibrillation , Ischemic Stroke , Stroke , United States , Humans , Female , Male , Sex Characteristics , Retrospective Studies , Stroke/surgery
7.
Trends Genet ; 37(4): 306-316, 2021 04.
Article in English | MEDLINE | ID: mdl-33036802

ABSTRACT

Phyllosphere microbial communities inhabit the aerial plant parts, such as leaves and flowers, where they form complex molecular interactions with the host plant. Contrary to the relatively well-studied rhizosphere microbiome, scientists are just starting to understand, and potentially utilize, the phyllosphere microbiome. In this article, we summarize the recent studies that have provided novel insights into the mechanism of the host genotype shaping the phyllosphere microbiome and the possibility to select a stable and well-adapted microbiome. We also discuss the most pressing gaps in our knowledge and identify the most promising research directions and tools for understanding the assembly and function of phyllosphere microbiomes - this understanding is necessary if we are to harness phyllosphere microbiomes for improving plant growth and health in managed systems.


Subject(s)
Flowers/genetics , Host-Pathogen Interactions/genetics , Microbiota/genetics , Plant Leaves/genetics , Flowers/microbiology , Gene Regulatory Networks/genetics , Genotype , Plant Leaves/microbiology , Rhizosphere
8.
J Virol ; 97(8): e0014823, 2023 08 31.
Article in English | MEDLINE | ID: mdl-37565749

ABSTRACT

Human cytomegalovirus (HCMV) is a beta herpesvirus that persists indefinitely in the human host through a latent infection. The polycistronic UL133-UL138 gene locus of HCMV encodes genes regulating latency and reactivation. While UL138 is pro-latency, restricting virus replication in CD34+ hematopoietic progenitor cells (HPCs), UL135 overcomes this restriction and is required for reactivation. By contrast, UL136 is expressed with later kinetics and encodes multiple proteins with differential roles in latency and reactivation. Like UL135, the largest UL136 isoform, UL136p33, is required for reactivation from latency in HPCs; viruses failing to express either protein are unresponsive to reactivation stimuli. Furthermore, UL136p33 is unstable, and its instability is important for the establishment of latency, and sufficient accumulation of UL136p33 is a checkpoint for reactivation. We hypothesized that stabilizing UL136p33 might overcome the requirement of UL135 for replication. We generated recombinant viruses lacking UL135 that expressed a stabilized variant of UL136p33. Stabilizing UL136p33 did not impact the replication of the UL135 mutant virus in fibroblasts. However, in the context of infection in HPCs, stabilization of UL136p33 strikingly compensated for the loss of UL135, resulting in increased replication in CD34+ HPCs and in humanized NOD-scid IL2RƎĀ³cnull (huNSG) mice. This finding suggests that while UL135 is essential for replication in HPCs, it functions largely at steps preceding the accumulation of UL136p33, and that stabilized expression of UL136p33 largely overcomes the requirement for UL135. Taken together, our genetic evidence indicates an epistatic relationship between UL136p33 and UL135, whereby UL135 may initiate events early in reactivation that drive the accumulation of UL136p33 to a threshold required for productive reactivation. IMPORTANCE Human cytomegalovirus (HCMV) is one of nine human herpesviruses and a significant human pathogen. While HCMV establishes a lifelong latent infection that is typically asymptomatic in healthy individuals, its reactivation from latency can have devastating consequences in the immunocompromised. Defining viral genes important in the establishment of or reactivation from latency is important to defining the molecular basis of latent and replicative states and in controlling infection and CMV disease. Here we define a genetic relationship between two viral genes in controlling virus reactivation from latency using primary human hematopoietic progenitor cells and humanized mouse models.


Subject(s)
Cytomegalovirus , Latent Infection , Animals , Humans , Mice , Antigens, CD34/genetics , Antigens, CD34/metabolism , Cytomegalovirus/physiology , Mice, Inbred NOD , Viral Proteins/genetics , Viral Proteins/metabolism , Virus Latency , Virus Replication
9.
Ann Neurol ; 93(1): 40-49, 2023 01.
Article in English | MEDLINE | ID: mdl-36214566

ABSTRACT

FOR SOCIAL MEDIA: @AliciaCastongu2, @FazalZaidi9, @oozaidat, @Mouhammad_Jumaa OBJECTIVE: Machine learning (ML) algorithms have emerged as powerful predictive tools in the field stroke. Here, we examine the predictive accuracy of ML models for predicting functional outcomes using 24-hour post-treatment characteristics in the Systematic Evaluation of Patients Treated With Neurothrombectomy Devices for Acute Ischemic Stroke (STRATIS) Registry. METHODS: ML models, adaptive boost, random forest (RF), classification and regression trees (CART), C5.0 decision tree (C5.0), support vector machine (SVM), least absolute shrinkage and selection operator (LASSO), and logistic regression (LR), and traditional LR models were used to predict 90-day functional outcome (modified Rankin Scale score 0-2). Twenty-four-hour National Institutes of Health Stroke Scale (NIHSS) was examined as a continuous or dichotomous variable in all models. Model accuracy was assessed using the area under characteristic curve (AUC). RESULTS: The 24-hour NIHSS score was a top-predictor of functional outcome in all models. ML models using the continuous 24-hour NIHSS scored showed moderate-to-good predictive performance (range mean AUC: 0.76-0.92); however, RF (AUC: 0.92 Ā± 0.028) outperformed all ML models, except LASSO (AUC: 0.89 Ā± 0.023, pĀ = 0.0958). Importantly, RF demonstrated a significantly higher predictive value than LR (AUC: 0.87 Ā± 0.031, pĀ = 0.048) and traditional LR (AUC: 85 Ā± 0.06, pĀ = 0.035) when using the 24-hour continuous NIHSS score. Predictive accuracy was similar between the 24-hour NIHSS score dichotomous and continuous ML models. INTERPRETATION: In this substudy, we found similar predictive accuracy for functional outcome when using the 24-hour NIHSS score as a continuous or dichotomous variable in ML models. ML models had moderate-to-good predictive accuracy, with RF outperforming LR models. External validation of these ML models is warranted. ANN NEUROL 2023;93:40-49.


Subject(s)
Ischemic Stroke , Stroke , Humans , Ischemic Stroke/diagnosis , Stroke/diagnosis , Stroke/therapy , Algorithms , Registries , Machine Learning
10.
Bull World Health Organ ; 102(7): 476-485C, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38933479

ABSTRACT

Objective: To assess the availability of information on indicators of the World Health Organization and United Nations Children's Fund primary health-care measurement framework in Bangladesh, India, Nepal, Pakistan and Sri Lanka and to outline the opportunities for and challenges to using the framework in these countries. Methods: We reviewed global and national data repositories for quantitative indicators of the framework and conducted a desk review of country documents for qualitative indicators in February-April 2023. We assessed data sources and cross-sectional survey tools to suggest possible sources of information on framework indicators that were not currently reported in the countries. We also identified specific indicators outside the framework on which information is collected in the countries and which could be used to measure primary health-care performance. Findings: Data on 54% (32/59) of the quantitative indicators were partially or completely available for the countries, ranging from 41% (24/59) in Pakistan to 64% (38/59) in Nepal. Information on 41% (66/163) of the qualitative subindicators could be acquired through desk reviews of country-specific documents. Information on input indicators was more readily available than on process and output indicators. The feasibility of acquiring information on the unreported indicators was moderate to high through adaptation of data collection instruments. Conclusion: The primary health-care measurement framework provides a platform to readily assess and track the performance of primary health care. Countries should improve the completeness, quality and use of existing data for strengthening of primary health care.


Subject(s)
Primary Health Care , United Nations , World Health Organization , Humans , Primary Health Care/organization & administration , Nepal , Bangladesh , Pakistan , India , Cross-Sectional Studies , Sri Lanka , Quality Indicators, Health Care
11.
Br J Clin Pharmacol ; 90(8): 2019-2029, 2024 08.
Article in English | MEDLINE | ID: mdl-38779884

ABSTRACT

AIM: Pharmacists are essential members of hospital antimicrobial stewardship (AMS) teams. A lack of self-perceived confidence can limit pharmacists' involvement and contributions. Pharmacists working in AMS have reported a lack of confidence. There is currently a lack of validated measures to assess pharmacists' self-perceived confidence when working in AMS and contributors to this confidence. This study aimed to identify variables contributing to pharmacist self-perceived confidence and validate an AMS hospital pharmacist survey tool using confirmatory factor analysis (CFA). METHODS: Responses from a survey of Australian and French hospital pharmacists were used to undertake CFA and path analysis on factors related to pharmacists' self-perceived confidence. It was hypothesized that pharmacists' self-perceived confidence would be impacted by time working in AMS, perceived importance of AMS programmes, perceived barriers to participating in AMS and current participation. RESULTS: CFA demonstrated a good model fit between the factors. Items included in the model loaded well to their respective factors with acceptable reliability. Path analysis demonstrated that time working in AMS had a significant impact on pharmacists' self-perceived confidence, while perceived barriers had a negatively significant relationship. Pharmacy participation in AMS and perceived importance of AMS programmes had a non-significant impact. CONCLUSION: Findings demonstrated that the survey tool showed good validity and identified factors that can impact pharmacists' self-perceived confidence when working in hospital AMS programmes. Having a validated survey tool can identify factors that can reduce pharmacists' self-perceived confidence. Strategies can then be developed to address these factors and subsequently improve pharmacists' self-perceived confidence.


Subject(s)
Antimicrobial Stewardship , Attitude of Health Personnel , Pharmacists , Pharmacy Service, Hospital , Humans , Pharmacists/psychology , Factor Analysis, Statistical , Surveys and Questionnaires , Female , Male , Australia , Pharmacy Service, Hospital/organization & administration , Self Concept , Professional Role , France , Adult , Reproducibility of Results , Middle Aged
12.
Epilepsy Behav ; 155: 109732, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38636140

ABSTRACT

Epilepsy affects over 50 million people globally. Electroencephalography is critical for epilepsy diagnosis, but manual seizure classification is time-consuming and requires extensive expertise. This paper presents an automated multi-class seizure classification model using EEG signals from the Temple University Hospital Seizure Corpus ver. 1.5.2. 11 features including time-based correlation, time-based eigenvalues, power spectral density, frequency-based correlation, frequency-based eigenvalues, sample entropy, spectral entropy, logarithmic sum, standard deviation, absolute mean, and ratio of Daubechies D4 wavelet transformed coefficients were extracted from 10-second sliding windows across channels. The model combines multi-head self-attention mechanism with a deep convolutional neural network (CNN) to classify seven subtypes of generalized and focal epileptic seizures. The model achieved 0.921 weighted accuracy and 0.902 weighted F1 score in classifying focal onset non-motor, generalized onset non-motor, simple partial, complex partial, absence, tonic, and tonic-clonic seizures. In comparison, a CNN model without multi-head attention achieved 0.767 weighted accuracy. Ablation studies were conducted to validate the importance of transformer encoders and attention. The promising classification results demonstrate the potential of deep learning for handling EEG complexity and improving epilepsy diagnosis. This seizure classification model could enable timely interventions when translated into clinical practice.


Subject(s)
Electroencephalography , Epilepsies, Partial , Neural Networks, Computer , Seizures , Humans , Electroencephalography/methods , Seizures/classification , Seizures/diagnosis , Seizures/physiopathology , Epilepsies, Partial/classification , Epilepsies, Partial/diagnosis , Epilepsies, Partial/physiopathology , Deep Learning , Attention/physiology , Male , Adult , Female , Epilepsy, Generalized/classification , Epilepsy, Generalized/diagnosis , Epilepsy, Generalized/physiopathology , Young Adult
13.
Environ Res ; 245: 118022, 2024 Mar 15.
Article in English | MEDLINE | ID: mdl-38151152

ABSTRACT

Cellulose that has been sourced from date palm leaves as a primary component was utilised. This cellulose served as the foundational material for the development of an aerogel composite. During this process, MXene (Ti3C2Tx) played a pivotal role in enhancing the overall composition of the aerogel. To ensure the stability and durability of the resulting aerogel structure, calcium ions were introduced to the mix. These ions facilitated the cross-linking process of sodium alginate molecules, ultimately leading to the formation of calcium alginate. This cross-linking step is crucial for the enhanced mechanical and chemical stability of the aerogel. Incorporating alginate and Ti3C2Tx into the cellulose aerogel enhanced its structural integrity in aqueous conditions and increased its adsorption capacity. When evaluated with synthetic wastewater, this composite exhibited remarkable adsorption capacities of 72.9, 114.4, 92.9, and 123.9Ā mg/g for As, Cd, Ni, and Zn ions, respectively. A systematic study was carried out to see the effect of various parameters, including contact time, MXene concentration, pH, and temperature on the adsorption of these elements. Peak adsorption was achieved at 60Ā min, favoring a pH range between 6 and 8 and exhibited optimal sorption efficiency at lower temperatures. The adsorption kinetics adhered closely to a pseudo-second-order, while the Freundlich model adeptly described the adsorption isotherms. An interesting result of this research was the aerogel's regenerative potential. After undergoing a basic acid treatment, the MXene/cellulose/alginate aerogel composite could be restored and reused for up to three cycles, all while maintaining its core performance capabilities even after the rigorous cross-linking processes. In three consecutive cycles, the removal percentages for As, Cd, Ni, and Zn were 48.15%, 80.38%, 56.51%, and 86.12% in cycle 1; 37.35%, 65.63%, 45.97%, and 78.42% in cycle 2; and 28.60%, 56.22%, 34.70%, and 65.83% in cycle 3, respectively. The composite was tested in conditions resembling seawater salinity. Impressively, the aerogel continued to demonstrate a significant ability to adsorb metals, reinforcing its potential utility in real-world aquatic scenarios. These findings suggest that the composite aerogel, integrating MXene, cellulose, and alginate, is an effective medium for the targeted removal of heavy metals from aquatic environments.


Subject(s)
Metals, Heavy , Nitrites , Phoeniceae , Transition Elements , Water Pollutants, Chemical , Wastewater , Cadmium , Metals, Heavy/chemistry , Cellulose/chemistry , Water , Kinetics , Adsorption , Alginates/chemistry , Water Pollutants, Chemical/chemistry , Hydrogen-Ion Concentration
14.
Ann Noninvasive Electrocardiol ; 29(1): e13098, 2024 01.
Article in English | MEDLINE | ID: mdl-37997513

ABSTRACT

OBJECTIVE: This systematic review of literature aimed to evaluate the safety and efficacy of dual-chamber ICDs for LBBAP in patients with left bundle branch block (LBBB). METHODS: Digital databases were searched systematically to identify studies reporting the left bundle branch area pacing (LBBAP) with implantable cardioverter defibrillator (ICD) placement in patients with LBBB. Detailed study and patient-level baseline characteristics including the type of study, sample size, follow-up, number of cases, age, gender, and baseline characteristics were abstracted. RESULTS: In a total of three studies, 34 patients were included in this review. There was a significant improvement reported in QRS duration in all studies. The mean QRS duration at baseline was 170 Ā± 17.4 ms, whereas the follow-up QRS duration at follow-up was 121 Ā± 17.3 ms. Two studies reported a significant improvement of 50% in LVEF from baseline. No lead-related complications or arrhythmic events were recorded in any study. The findings of the systematic review suggest that dual-chamber ICD for LBBAP is a promising intervention for patients with heart conditions. CONCLUSION: The procedure offers significant improvements in QRS duration and LVEF, and there were no lead-related complications or arrhythmic events recorded in any of the studies.


Subject(s)
Cardiac Resynchronization Therapy , Defibrillators, Implantable , Pacemaker, Artificial , Humans , Electrocardiography/methods , Heart Conduction System , Bundle-Branch Block/therapy , Treatment Outcome , Cardiac Pacing, Artificial/methods , Bundle of His , Cardiac Resynchronization Therapy/methods
15.
Sensors (Basel) ; 24(4)2024 Feb 16.
Article in English | MEDLINE | ID: mdl-38400424

ABSTRACT

Car-sharing systems require accurate demand prediction to ensure efficient resource allocation and scheduling decisions. However, developing precise predictive models for vehicle demand remains a challenging problem due to the complex spatio-temporal relationships. This paper introduces USTIN, the Unified Spatio-Temporal Inference Prediction Network, a novel neural network architecture for demand prediction. The model consists of three key components: a temporal feature unit, a spatial feature unit, and a spatio-temporal feature unit. The temporal unit utilizes historical demand data and comprises four layers, each corresponding to a different time scale (hourly, daily, weekly, and monthly). Meanwhile, the spatial unit incorporates contextual points of interest data to capture geographic demand factors around parking stations. Additionally, the spatio-temporal unit incorporates weather data to model the meteorological impacts across locations and time. We conducted extensive experiments on real-world car-sharing data. The proposed USTIN model demonstrated its ability to effectively learn intricate temporal, spatial, and spatiotemporal relationships, and outperformed existing state-of-the-art approaches. Moreover, we employed negative binomial regression with uncertainty to identify the most influential factors affecting car usage.

16.
JAMA ; 2024 Sep 23.
Article in English | MEDLINE | ID: mdl-39374319

ABSTRACT

Importance: Recent large infarct thrombectomy trials used heterogeneous imaging modalities and time windows for patient selection. Noncontrast computed tomographic (CT) scan is the most common stroke imaging approach. It remains uncertain whether thrombectomy is effective for patients with large infarcts identified using noncontrast CT alone within 24 hours of stroke onset. Objective: To evaluate the effect of thrombectomy in patients with a large infarct on a noncontrast CT scan within 24 hours of onset. Design, Setting, and Participants: Open-label, blinded-end point, bayesian-adaptive randomized trial with interim analyses for early stopping (futility or success) or population enrichment, which was conducted at 47 US academic and community-based stroke thrombectomy centers. Three hundred patients presenting within 24 hours with anterior-circulation, large-vessel occlusion and large infarct on noncontrast CT scan, with Alberta Stroke Program Early CT Scores of 2 to 5, were randomized to undergo thrombectomy or usual care. Enrollment occurred July 16, 2019 to October 17, 2022; final follow-up, January 25, 2023. Intervention: The intervention patients (n = 152) underwent endovascular treatment using standard thrombectomy devices and usual medical care. Control patients (n = 148) underwent usual medical care alone. Main Outcomes and Measures: The primary efficacy end point was improvement in 90-day functional outcome measured using mean utility-weighted modified Rankin Scale (UW-mRS) scores (range, 0 [death or severe disability] to 10 [no symptoms]; minimum clinically important difference, 0.3). A bayesian model determined the posterior probability that the intervention would be superior to usual care; statistical significance was a 1-sided posterior probability of .975 or more. The primary adverse event end point was 90-day mortality; secondary adverse event end points included symptomatic intracranial hemorrhage and radiographic intracranial hemorrhage. Results: The trial enrolled 300 patients (152 intervention, 148 control; 138 females [46%]; median age, 67 years), without early stopping or enrichment; 297 patients completed the 90-day follow-up. The mean (SD) 90-day UW-mRS score was 2.93 (3.39) for the intervention group vs 2.27 (2.98) for the control group with an adjusted difference of 0.63 (95% credible interval [CrI], -0.09 to 1.34; posterior probability for superiority of thrombectomy, .96). The 90-day mortality was similar between groups: 35.3% (53 of 150) for the intervention group vs 33.3% (49 of 147) for the control group. Six of 151 patients (4.0%) in the intervention group and 2 of 149 (1.3%) in the control group experienced 24-hour symptomatic intracranial hemorrhage. Fourteen patients of 148 (9.5%) in the intervention group vs 4 of 146 (2.7%) in the control group experienced parenchymal hematoma type 1 hemorrhages; 14 (9.5%) in the intervention group vs 5 (3.4%) in the control group experienced parenchymal hematoma type 2 hemorrhages; and 24 (16.2%) in the intervention group vs 9 (6.2%) in the control group experienced subarachnoid hemorrhages. Conclusions and Relevance: Among patients with a large infarct on noncontrast CT within 24 hours, thrombectomy did not demonstrate improvement in functional outcomes. But the width of the credible interval around the effect estimate includes the possibility of both no important effect and a clinically relevant benefit, so the potential role of thrombectomy with this imaging approach and time window will likely require additional study. Trial Registration: ClinicalTrials.gov Identifier: NCT03805308.

17.
J Stroke Cerebrovasc Dis ; 33(12): 108028, 2024 Sep 28.
Article in English | MEDLINE | ID: mdl-39343153

ABSTRACT

OBJECTIVES: Patients with cerebral venous thrombosis (CVT) may present with early intracerebral hemorrhage (EICH). The objective of this study was to identify predictors for EICH in CVT patients via a systematic review and meta-analysis of observational studies. Additionally, we aimed to evaluate the clinical outcomes associated with the presence of EICH in these patients. METHODS: Literature search on PubMed, EMBASE and Cochrane Library databases from inception up to 1 February 2024 was conducted. Five studies with predictors of EICH were included in qualitative synthesis and meta-analysis. RESULTS: Pooled analysis demonstrated a statistically significant association between female gender and EICH (odd ratios (OR) = 1.51, 95 % confidence interval (CI) = 1.23-1.85, p < 0.01). The ICH patients had higher likelihood of seizures (OR = 3.07, 95 % CI = 1.69-5.58, p < 0.01), focal neurological deficits (OR = 4.07, 95 % CI = 2.57-6.44, p < 0.01), and decreased level of consciousness (OR = 3.89, 95 % CI = 2.53-5.87, p < 0.01). Superior Sagittal Sinus thrombosis was associated with higher likelihood of EICH (OR: 1.49, 95 % CI 1.05-2.13, P = 0.03). No statistically significant association was demonstrated between presence of EICH and pregnancy, presence of hematological diseases or thrombophilia, or other site of venous thrombosis (deep venous system, or multiple sinuses involvement). Furthermore, patients who exhibited early EICH were notably less likely to attain a favorable functional outcome (mRS 0-2) (OR: 0.28; 95 % CI 0.16-0.49; p < 0.001). CONCLUSION: This meta-analysis demonstrates that among CVT patients, female patients with new onset seizures, focal neurological deficits and decreased level of consciousness are more likely to present with EICH.

18.
J Stroke Cerebrovasc Dis ; 33(7): 107724, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38636831

ABSTRACT

BACKGROUND AND AIMS: There is no clear consensus on ideal systolic blood pressure (SBP) target post-endovascular thrombectomy (EVT) in patients with acute ischemic stroke. This study intends to investigate the relationship between reducing SBP and clinical outcomes and to determine the therapeutic efficacy of moderate and intensive SBP reduction post EVT. METHODS: A comprehensive search was conducted across five electronic databases to identify studies relevant to our analysis. Data from these studies were then analyzed using pooled relative risk (RR) along with their corresponding 95 % confidence intervals (CI) for our categorical outcomes. functional independence at 90 days post-EVT was defined as a modified Rankin score (mRS) 0-2. RESULTS: Our meta-analysis included eight studies with 2922 patients: 1376 patients were treated with intensive SBP reduction, 306 with moderate SBP reduction, and 1243 with standard SBP reduction. There was no difference in the risk of functional independence at 90 days post-EVT with both intensive-SBP reduction (target 120-140 mmHg, relative risk (RR) =1.05, 95 % CI 0.82, 1.34, p = 0.72) and moderate-SBP reduction (>160 mm Hg) (RR= 0.95, 95 % CI 0.69, 1.31, p = 0.76) compared with standard SBP reduction (>180 mm Hg). The risk of symptomatic intracranial hemorrhage (sICH) did not significantly differ between standard-SBP reduction and intensive-SBP reduction (RR = 0.93, 95 % CI 0.66, 1.31, p = 0.36) or moderate-SBP reduction (0.72 (95 % CI [0.28, 1.87], p = 0.50) groups, respectively. Intensive-SBP reduction significantly decreased the risk of hemicraniectomy. CONCLUSIONS: We did not identify any difference in functional independence at 90 days in acute ischemic stroke patients with either intensive-SBP reduction or moderate-SBP reduction compared with standard SBP reduction post-EVT.


Subject(s)
Blood Pressure , Endovascular Procedures , Ischemic Stroke , Recovery of Function , Thrombectomy , Humans , Thrombectomy/adverse effects , Endovascular Procedures/adverse effects , Ischemic Stroke/physiopathology , Ischemic Stroke/diagnosis , Ischemic Stroke/therapy , Ischemic Stroke/etiology , Treatment Outcome , Risk Factors , Aged , Time Factors , Male , Female , Middle Aged , Functional Status , Antihypertensive Agents/therapeutic use , Disability Evaluation , Aged, 80 and over
19.
BMC Oral Health ; 24(1): 780, 2024 Jul 11.
Article in English | MEDLINE | ID: mdl-38992585

ABSTRACT

BACKGROUND: This study delves into the intricate landscape of oral cancer, a global concern with a high incidence in Asian countries. We focus on oral squamous cell carcinoma (OSCC), primarily driven by the consumption of betel nut and its derivatives. OSCC often arises from premalignant lesions like oral submucous fibrosis (OSF). In Pakistan, OSCC is prevalent among men due to various addictive substances, including smokeless tobacco and chewing materials. Mutations in tumor suppressor genes, such as TP53 and p21, play crucial roles in this malignancy's development. We also explore the involvement of TUSC3 gene deletion in OSCC and OSF. METHODS: In this study we investigated demographics, TUSC3 gene expression, deletion analysis, and TP53 and p21 genetic alterations in OSCC and OSF patients (blood and tissue of 50 samples in each condition) who had tobacco derivates usage history. The association analysis was carried out mainly through PCR based genotyping. RESULTS: The study's patient cohort (OSCC and OSF) displayed a wide age range from 13 to 65 years (Mean = 32.96 years). Both conditions were more prevalent in males, with a male-female ratio of approximately 2.5:1. Chewing habits analysis revealed high frequencies of gutka use in both OSF and OSCC patients. TUSC3 expression analysis in OSCC cell lines indicated significant downregulation. Genotyping showed no TUSC3 deletion in OSF cases, but a deletion rate of over 22% in OSCC tissue samples. Analysis supported a significant association of TUSC3 deletion with OSCC development but not with OSF. Polymorphism in p53 exon 4 and p21 (rs1801270) were significantly associated with both OSCC and OSF, adding to their pathogenesis. Our findings further revealed a strong correlation between TUSC3 deletion and the excessive use of tobacco and related products, shedding light on the genetic underpinnings of OSCC development. CONCLUSIONS: Notably, our study provides a crucial insight into genetic aspects underlying OSCC and OSF in response of addictive consumption of areca nut, betel quid, and tobacco derivatives. A significant association between TUSC3 deletion and OSCC development, along with polymorphisms in TP53 and p21, underscores the importance of further research into the molecular mechanisms driving oral cancer progression for improved diagnosis and treatment outcomes.


Subject(s)
Carcinoma, Squamous Cell , Cyclin-Dependent Kinase Inhibitor p21 , Membrane Proteins , Mouth Neoplasms , Oral Submucous Fibrosis , Tobacco, Smokeless , Tumor Suppressor Protein p53 , Humans , Male , Oral Submucous Fibrosis/genetics , Mouth Neoplasms/genetics , Mouth Neoplasms/pathology , Female , Adult , Middle Aged , Carcinoma, Squamous Cell/genetics , Pakistan , Aged , Tobacco, Smokeless/adverse effects , Young Adult , Cyclin-Dependent Kinase Inhibitor p21/genetics , Adolescent , Membrane Proteins/genetics , Tumor Suppressor Protein p53/genetics , Tumor Suppressor Proteins/genetics , Areca/adverse effects , Gene Deletion , Sex Factors
20.
BMC Oral Health ; 24(1): 26, 2024 01 05.
Article in English | MEDLINE | ID: mdl-38183081

ABSTRACT

OBJECTIVE: To evaluate the efficacy of Propolis mouthwash compared to chlorhexidine mouthwash as an adjunct to mechanical therapy in improving clinical parameters in perimenopausal women with chronic periodontitis. METHODOLOGY: A double-blind, randomized, controlled clinical trial was conducted by recruiting 144 subjects with mild to moderate chronic periodontitis. After scaling and root planning, subjects were allocated to two treatment groups: 0.2% chlorhexidine mouthwash and 20% propolis mouthwash twice daily for six weeks. Clinical parameters such as pocket probing depth (PPD), clinical attachment loss (CAL) and bleeding on probing (BOP) were analysed at baseline, six weeks, and 12 weeks. RESULT: The mean value of PPD in the propolis group was 4.67 at baseline, reduced to 4.01 at six weeks and 3.59 at 12 weeks. While in the chlorhexidine group, the baseline value of 4.65 reduced to 4.44 and 4.25 at six weeks and 12 weeks, respectively. The baseline value of the mean CAL in the propolis group was 4.45. This value was reduced to 4.15 at six weeks and 3.77 at 12 weeks. For the chlorhexidine group, the baseline value of CAL was 4.80, which was reduced to 4.50 and 4.19 at six weeks and 12 weeks. The mean value of bleeding on probing in the propolis group was 77.20, which decreased to 46.30 at six weeks and 14.60 at the final visit. In the chlorhexidine group, the mean value of 77.30 was reduced to 49.60 and 22.80 at subsequent visits. CONCLUSION: This study concludes that both propolis and chlorhexidine mouthwash positively improve clinical parameters; however, propolis is significantly more effective in improving BOP. TRIAL REGISTRATION: ID: NCT05870059, Date of Registration: 02/02/2022. ( https://beta. CLINICALTRIALS: gov/study/NCT05870059 ).


Subject(s)
Chronic Periodontitis , Propolis , Female , Humans , Chlorhexidine/therapeutic use , Mouthwashes/therapeutic use , Propolis/therapeutic use , Perimenopause
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