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Related Experiment Videos

Nitrous oxide anxiolysis for elective cesarean section.

Manuel C Vallejo1, Amy L Phelps, Craig J Shepherd

  • 1Department of Anesthesia, Magee-Womens Hospital, University of Pittsburgh School of Medicine and Dental Medicine, Pittsburgh, PA 15213, USA. vallejomc@anes.upmc.edu

Journal of Clinical Anesthesia
|November 22, 2005
PubMed
Summary

Inhaled 40% nitrous oxide (N2O) effectively reduced anxiety in women undergoing cesarean sections. This inhaled anesthetic provided significant anxiolysis during critical surgical moments for high-anxiety patients.

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Area of Science:

  • Anesthesiology
  • Obstetric Anesthesia
  • Pain Management

Background:

  • Cesarean sections under spinal anesthesia can induce anxiety in patients.
  • Effective anxiolysis is crucial for patient well-being during surgical procedures.

Purpose of the Study:

  • To evaluate the anxiolytic efficacy of inhaled 40% nitrous oxide (N2O) in women undergoing elective cesarean section.
  • To compare N2O with 100% oxygen in terms of anxiety reduction and other maternal/neonatal outcomes.

Main Methods:

  • Prospective, randomized, double-blinded study involving 60 patients.
  • Patients received either 40% N2O in O2 or 100% O2 via facemask.
  • Anxiety, pain, vital signs, and other perioperative variables were measured.

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Main Results:

  • Nitrous oxide group showed significantly lower anxiety scores at spinal injection, skin incision, and uterine incision.
  • No significant differences were observed in pain scores, vital signs, or Apgar scores between groups.
  • High-anxiety patients (VAS >= 50) demonstrated greater anxiety reduction with N2O.

Conclusions:

  • Inhaled 40% N2O is an effective anxiolytic for women undergoing cesarean section under spinal anesthesia.
  • N2O is particularly beneficial for patients experiencing high levels of anxiety during the procedure.