16 November 2025
: Case report 
Long-Term Continuous Heart Rate Variability Monitoring Over 20 Days for Severe Tetanus: A Case Report
Unknown etiology, Unusual setting of medical care
Shoma Fujiya ABDEF 1*, Masami Tanishima BCD 1, Tomotaka Takanosu AF 1, Yuri Furuhashi
B 1, Yasutaka Tanaka AB 1, Nobutaka Watanabe BF 1, Takafumi Shinjo BF 1, Yoshimitsu Izawa ABCDEF 1, Tomohiro Matsumura BEF 1, Chikara Yonekawa BEF 1, Takashi Mato ABCDEFG 1
DOI: 10.12659/AJCR.949230
Am J Case Rep 2025; 26:e949230
Figure 2 Blood pressure and heart rate variability spike frequency. sBP spikes – frequency of systolic blood pressure spikes; HRV – heart rate variability; LF – low frequency; HF – high frequency.