Results 41 to 50 of about 1,557,064 (174)

Clinical Outcomes Associated With His-Purkinje System Pacing vs. Biventricular Pacing, in Cardiac Resynchronization Therapy: A Meta-Analysis

Frontiers in Cardiovascular Medicine, 2022
AimsHis-Purkinje system pacing has recently emerged as an alternative to biventricular pacing (BIVP) in cardiac resynchronization therapy (CRT). The aim of this study was to conduct a meta-analysis comparing the clinical outcomes associated with His ...
Yang Gui, Lifang Ye, Liuyang Wu, Haohui Mai, Qiqi Yan, Lihong Wang   +5 more
doaj   +1 more source

Accumulation Bias in Meta-Analysis: The Need to Consider Time in Error Control [PDF]

, 2019
Studies accumulate over time and meta-analyses are mainly retrospective. These two characteristics introduce dependencies between the analysis time, at which a series of studies is up for meta-analysis, and results within the series. Dependencies introduce bias --- Accumulation Bias --- and invalidate the sampling distribution assumed for p-value tests,
arxiv   +1 more source

Sequential Topic Selection Model with Latent Variable for Topic-Grounded Dialogue [PDF]

arXiv, 2022
Recently, topic-grounded dialogue system has attracted significant attention due to its effectiveness in predicting the next topic to yield better responses via the historical context and given topic sequence. However, almost all existing topic prediction solutions focus on only the current conversation and corresponding topic sequence to predict the ...
arxiv  

Revisão sistemática da acurácia dos testes diagnósticos: uma revisão narrativa

Revista do Colégio Brasileiro de Cirurgiões
Este artigo tem o objetivo de realizar uma revisão narrativa sobre revisão sistemática da acurácia dos testes diagnósticos. Foi realizada busca na Cochrane Methodology Reviews (Cochrane Reviews of Diagnostic Test Accuracy), Medline e LILACS, bem como ...
Glória Maria de Oliveira, Fábio Trinca Camargo, Eduardo Costa Gonçalves, Carlos Vinicius Nascimento Duarte, Carlos Alberto Guimarães   +4 more
doaj   +1 more source

Studies and research design in medicine

Сеченовский вестник, 2021
Adequate design is an essential condition for conducting a successful study. This review describes the most common types of research design in medicine. We discuss the differences between different types of observational and interventional studies, their
N. M. Bulanov, O. B. Blyuss, D. B. Munblit, N. A. Nekliudov, D. V. Butnaru, K. B. Kodzoeva, M. Yu. Nadinskaya, A. A. Zaikin   +7 more
doaj   +1 more source

Simulation Models for Aggregated Data Meta-Analysis: Evaluation of Pooling Effect Sizes and Publication Biases [PDF]

arXiv, 2020
Simulation studies are commonly used to evaluate the performance of newly developed meta-analysis methods. For methodology that is developed for an aggregated data meta-analysis, researchers often resort to simulation of the aggregated data directly, instead of simulating individual participant data from which the aggregated data would be calculated in
arxiv  

Riesgo de sesgo de publicación en intervenciones terapéuticas para la COVID-19

Revista Panamericana de Salud Pública, 2021
This article describes publication bias, its most frequent causes, its characteristics, the regulatory tools to avoid it, and some statistical techniques to analyze it. These techniques are explained and applied to three therapeutic interventions related
Santiago Hasdeu, Fernando Tortosa
doaj   +1 more source

OnabotulinumtoxinA for neurogenic detrusor overactivity and dose differences: a systematic review

International Brazilian Journal of Urology, 2015
Purpose To evaluate the efficacy and safety of onabotulinumtoxinA for patients with neurogenic detrusor overactivity (NDO). Materials and Methods We searched the Cochrane Library, PUBMED, EMBASE, Chinese Bio-medicine database, China Journal Full-text ...
Rui Zhang, Yongteng Xu, Shengping Yang, Hui Liang, Yunxin Zhang, Yali Liu   +5 more
doaj   +1 more source

RETRACTED: Comparative Evaluation of the Incidence of Postoperative Pulmonary Complications After Minimally Invasive Valve Surgery vs. Full Sternotomy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials and Propensity Score-Matched Studies

Frontiers in Cardiovascular Medicine, 2021
Background: Postoperative pulmonary complications remain a leading cause of increased morbidity, mortality, longer hospital stays, and increased costs after cardiac surgery; therefore, our study aims to analyze whether minimally invasive valve surgery ...
Mohamed Abdulkadir Mohamed, Shuai Ding, Sayed Zulfiqar Ali Shah, Rui Li, Najib Isse Dirie, Cai Cheng, Xiang Wei   +6 more
doaj   +1 more source

BERTopic: Neural topic modeling with a class-based TF-IDF procedure [PDF]

arXiv, 2022
Topic models can be useful tools to discover latent topics in collections of documents. Recent studies have shown the feasibility of approach topic modeling as a clustering task. We present BERTopic, a topic model that extends this process by extracting coherent topic representation through the development of a class-based variation of TF-IDF.
arxiv