Arq. Bras. Cardiol. 2022; 119(2): 280-281
Systematic Reviews and Meta-Analyses: Lighthouses in the Data Storm from the COVID-19 Pandemic
Henrique Turin Moreira
, André Schmidt
This Short Editorial is referred by the Research article "Abnormal Echocardiographic Findings in Hospitalized Patients with Covid-19: A Systematic Review and Meta-analysis".
Since recognizing the COVID-19 pandemic as a public health emergency, the global scientific community has driven efforts to understand the infection by the new coronavirus SARS-CoV-2. The World Health Organization soon proclaimed the need to fast-track research to reduce mortality and avoid crisis escalation. As a result, we now observe an extraordinary amount of data on COVID-19 obtained in a short time. Indeed, a search in the Pubmed database promptly reveals more than 164,000 papers on the disease in less than two and a half years, an unprecedented phenomenon in the medical literature. Putting this into perspective, this profusion of publications is numerically greater than papers identified by the term “myocardial infarction” in the last four decades.
Although this outstanding scientific advance has been crucial to fighting the pandemic, at the same time, it went along with a data storm with marked adverse effects. Health professionals had challenges searching, interpreting, and summarizing this dizzying volume of evidence. Conflicting results, typical of the twisted paths of science, were frequent causes of confusion and disagreement. In this setting, systematic reviews and meta-analyses can serve as lighthouses, guiding us to safer routes. They offer organized and integrated assessment of multiple data sources, thus allowing more robust estimates and reliable answers to clinical practice dilemmas.
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