Letter by Shi et al Regarding Article, “Body Mass Index and Mortality Among Adults Undergoing Cardiac Surgery: A Nationwide Study With a Systematic Review and Meta-Analysis”
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To the Editor:
We read with great interest the article by Mariscalco et al.1 It is an elegant research into the demonstration of the obesity paradox in cardiac surgery, which challenged the paradigm associating obesity with increased mortality.
In this study, Mariscalco et al1 further explored the relationship between body mass index (BMI) and mortality after cardiac surgery using a nationwide cohort and a well-established systematic review and meta-analysis. Notably, the authors made efforts …