Why the study?
Intraoperative hypotension during cardiac valve replacement endangers organ perfusion, necessitating a tool to predict risk and guide early intervention.
Can a nomogram predict intraoperative hypotension in patients undergoing cardiac valve replacement?
Can a nomogram predict intraoperative hypotension in patients undergoing cardiac valve replacement?
A newly developed nomogram incorporating age, hypertension, LVEF, and serum creatinine can predict the risk of intraoperative hypotension during cardiac valve replacement.
Answers are grounded in this paper and cite their sources.
May inform risk stratification in valve surgery; hypothesis-generating pending prospective validation.
Background: Cardiac valve replacement risks include intraoperative hypotension, endangering organ perfusion. Our nomogram predicted hypotension risk in valve surgery, guiding early intervention. Methods: Analyzing 561 patients from July to November 2022, we developed a nomogram to predict hypotension in valve replacement patients, validated using data from December 2022 to January 2023 on 241 patients, with robust statistical confirmation. Results: Our study identified age, hypertension, left ventricular ejection fraction and serum creatinine as hypotension predictors. The resulting nomogram, validated with high concordance index and area under the curve scores, provided a clinically useful tool for managing intraoperative risk. Conclusion: For valve replacement patients, factors like age, hypertension, low left ventricular ejection fraction and high serum creatinine predicted hypotension risk. Our nomogram enabled clinicians to quantify this risk and proactively manage it.
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Wang et al. (2023) studied this question.
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