Key result
Changes in resting neural respiratory drive strongly inversely correlate with HRV changes after open-heart surgery.
Why the study?
Respiratory muscle dysfunction after open-heart surgery may influence cardiopulmonary interactions, but the correlation between neural respiratory drive and heart rate variability was unclear.
Population
32 patients submitted to open-heart surgery
Comparison
Change in neural respiratory drive vs change in heart rate variability
Design
Observational cross-sectional study
Follow-up
From admission to discharge
Authors
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May indicate autonomic interactions in post-surgical patients; hypothesis-generating and requires prospective validation before clinical use.
Cross-Sectional (n=32)
No
Effect estimate: r= -0.844
p-value: p=0.004
Changes in neural respiratory drive correlate significantly with changes in heart rate variability in patients recovering from open-heart surgery, highlighting cardiopulmonary interactions.
Jinakote et al. (2019) conducted a cross-sectional in Open-heart surgery (n=32). Open-heart surgery vs. Pre-surgery (admission) was evaluated on Correlation between change in neural respiratory drive (NRD) and change in heart rate variability (HRV) (r= -0.844, p=0.004). In patients undergoing open-heart surgery, the change in resting neural respiratory drive was strongly negatively correlated with the change in total power of heart rate variability (r=-0.844, P=0.004).
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