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Implicit processing and therapeutic suggestion during balanced anaesthesia

E Oddby-Muhrbeck1, J Jakobsson, B Enquist

  • 1Department of Anaesthesia, Karolinska Institute of Danderyds Hospital, Sweden.

Acta Anaesthesiologica Scandinavica
|April 1, 1995
PubMed
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Therapeutic suggestion during anesthesia did not significantly reduce nausea and vomiting after surgery. However, patients receiving positive messages reported less recall of these symptoms, suggesting potential implicit processing.

Area of Science:

  • Anesthesiology
  • Psychology
  • Surgical Patient Care

Background:

  • Postoperative nausea and vomiting (PONV) are common complications after surgery.
  • Balanced anesthesia aims to maintain physiological stability during surgical procedures.
  • Investigating the role of psychological interventions, like therapeutic suggestion, during anesthesia is crucial for improving patient outcomes.

Purpose of the Study:

  • To evaluate the effect of therapeutic suggestion during balanced anesthesia on the occurrence of postoperative nausea and vomiting.
  • To explore whether implicit processing occurs during anesthesia when patients are exposed to auditory messages.

Main Methods:

  • A randomized controlled trial was conducted with 70 female patients undergoing elective breast surgery.
  • Patients were assigned to listen to either a reassuring message about minimizing PONV or a blank tape during surgery.

Related Experiment Videos

  • Postoperative nausea and vomiting were monitored for 24 hours, and patient recall was assessed.

    • Main Results:

    • No significant difference was observed in the incidence of nausea or vomiting between the suggestion and blank tape groups.
    • Patients who heard the reassuring message reported a lower frequency of recalling nausea and vomiting.
    • No explicit memories of the intraoperative period were recalled by any patient.

    Conclusions:

    • Peroperative therapeutic suggestion did not demonstrate a major effect on the occurrence of postoperative nausea and vomiting.
    • Implicit processing of therapeutic suggestions during balanced anesthesia cannot be ruled out.
    • Further research is needed to understand the potential of subconscious psychological interventions in managing postoperative symptoms.