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Long-Term Continuous Heart Rate Variability Monitoring Over 20 Days for Severe Tetanus: A Case Report.

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Severe tetanus disrupts the autonomic nervous system, causing blood pressure instability. Continuous heart rate variability (HRV) monitoring revealed a strong association between HRV changes and blood pressure spikes in a severe tetanus case.

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Area of Science:

  • Neurology
  • Cardiology
  • Critical Care Medicine

Background:

  • Severe tetanus is characterized by autonomic nervous system (ANS) dysfunction, leading to significant blood pressure and pulse rate fluctuations.
  • Heart rate variability (HRV) serves as a noninvasive indicator of ANS function.
  • Understanding ANS dysfunction in severe tetanus is crucial for patient management.

Purpose of the Study:

  • To continuously monitor heart rate variability (HRV) in a patient with severe tetanus.
  • To investigate the relationship between HRV and autonomic dysfunction during severe tetanus.

Main Methods:

  • Continuous HRV monitoring was performed on a 75-year-old male patient with severe tetanus.
  • Electrocardiogram (ECG) waveform monitoring was used to record HRV and systolic blood pressure (SBP) spikes.
  • Analysis focused on a 22-day period during hospitalization, correlating HRV spike frequency with SBP spike frequency.

Main Results:

  • The patient exhibited rapid blood pressure fluctuations from day 1 to day 33, indicative of ANS dysfunction.
  • Analysis of HRV and SBP spikes over 22 days showed a strong association between the frequency of SBP spikes and changes in HRV spike frequency.

Conclusions:

  • Continuous HRV monitoring may offer valuable insights into autonomic nervous system dysfunction in severe tetanus.
  • Establishing real-time HRV analysis methods could aid in the diagnosis and understanding of tetanus-induced autonomic dysregulation.