Why the study?
Do linear and nonlinear characteristics of heart rate time series differ between obese and non-obese patients during surgery?
Population
13 patients. Group A: n=5 obese, laparoscopic; Group B: n=3 obese, open; Group C: n=5 non-obese, laparoscopic.
Comparison
Laparoscopic or open surgery vs Non-obese patients undergoing laparoscopic surgery
Design
Cohort
Follow-up
perioperative
Authors
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Obesity linked to reduced heart rate multifractality during surgery; hypothesis-generating for nonlinear autonomic metrics in perioperative assessment.
Do linear and nonlinear characteristics of heart rate time series differ between obese and non-obese patients during surgery?
Multifractal analysis of heart rate data is a sensitive measure of integrated cardiac autonomic function that demonstrates reduced multifractality in obesity independently of the surgical response.
Alam et al. (2009) studied this question.
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