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October 1, 1997Anesthesia & Analgesia

Recovery of Heart Rate Variability Profile in Patients After Coronary Artery Surgery

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Why the study?

How does coronary artery surgery affect heart rate variability profiles in patients up to 28 days postoperatively?

Population

Patients undergoing coronary artery surgery (CAS)

Comparison

Coronary artery surgery (CAS) vs Preoperative baseline

Design

Cohort

Follow-up

28 days

Authors

TKToru KomatsuTokyo University of ScienceTKTomomasa KimuraWestchester Medical CenterKNKimitoshi NishiwakiNagoya City University

Discussion

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Implication

Persistent HRV reduction after CABG may indicate incomplete autonomic recovery; hypothesis-generating for prognostic value and intervention trials.

Structured PICO

How does coronary artery surgery affect heart rate variability profiles in patients up to 28 days postoperatively?

P
Population
Patients undergoing coronary artery surgery (CAS)
I
Intervention
Coronary artery surgery (CAS)
C
Comparator
Preoperative baseline
O
Outcome
Time course of heart rate variability (HRV) profile (spectral analysis of LF, HF, fractal slope, and sympathovagal slope) up to 28 days postoperativelysurrogate

Heart rate variability remains depressed for at least 28 days after coronary artery surgery, reflecting prolonged alterations in autonomic neural regulation.

Limitations

  • A specific correlation between depressed heart rate variability and outcomes was not performed

Cite This Study

Komatsu et al. (1997) studied this question.

synapsesocial.com/papers/6a7ec0d0b06e944a4733969ehttps://doi.org/10.1213/00000539-199710000-00001
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Alterations in Temporal Patterns of Heart Rate Variability after Coronary Artery Bypass Graft Surgery1994 · 85 citations
  2. 2Decreased heart rate variability and its association with increased mortality after acute myocardial infarction1987 · 4,025 citations
  3. 3Cardiovascular autonomic response during preoperative stress and postoperative pain1984 · 40 citations
  4. 4Basis for Recurring Ventricular Fibrillation in the Absence of Coronary Heart Disease and Its Management1976 · 376 citations
  5. 5Autonomic Reflex Dysfunction in Patients Presenting for Elective Surgery Is Associated with Hypotension after Anesthesia Induction1994 · 144 citations