Obstetric anesthesia

Infrared thermographic assessment of cutaneous temperature changes during labour epidural analgesia initiation: an observational pilot study

Int J Obstet AnesthPublished Prospective observational pilot study

Authors' conclusion

Sympathetic blockade associated with a successful analgesic epidural block produces cutaneous temperature elevation at the plantar surface of the hallux.

Study context

Population
Patients attending for induction of labour, tertiary obstetric centre, January 2021 to March 2024
Participants
38 vs 11
Exposure
Foot temperature changes with labour epidural analgesia vs no epidural; successful vs failed epidurals
  • Epiduraln = 38
  • Controln = 11reference
Outcome
Relationship between foot temperature changes (infrared thermography, bilateral, every 5 min for 30 min) and successful epidural (adequate analgesia in 45 min)
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

Epidural success and foot temperature
Maximum rate of increase between 5 and 15 minutes, both sides (°C per minute)
0.5 (0.1)

Observational data: associations, not effects.

Original publication

Infrared thermographic assessment of cutaneous temperature changes during labour epidural analgesia initiation: an observational pilot study. Int J Obstet Anesth. Published 4 December 2024. doi:10.1016/j.ijoa.2024.104304

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