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Risk factors for postoperative nausea and vomiting

G N Kenny1

  • 1University Department of Anaesthesia, Glasgow Royal Infirmary, UK.

Anaesthesia
|January 1, 1994
PubMed
Summary

Postoperative nausea and vomiting (PONV) risk factors include specific anesthetic agents like nitrous oxide, patient characteristics such as female sex and prior PONV history, and surgical type. Understanding these factors is key to improving patient care.

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Area of Science:

  • Anesthesiology
  • Pharmacology
  • Patient Safety

Background:

  • Postoperative nausea and vomiting (PONV) is a common complication following surgical procedures.
  • The precise etiology of PONV is multifactorial, involving a complex interplay of patient, anesthetic, and surgical factors.
  • Managing PONV effectively is crucial for enhancing patient satisfaction and overall healthcare quality.

Purpose of the Study:

  • To review and elucidate the key contributing factors that increase an individual patient's risk for developing postoperative nausea and vomiting.
  • To provide an overview of the emetogenic potential of various anesthetic agents used in clinical practice.
  • To highlight patient-specific and surgery-specific risk factors associated with PONV.

Main Methods:

  • Literature review of anesthetic agents and their association with postoperative nausea and vomiting.
  • Analysis of patient demographics and their correlation with PONV incidence.
  • Examination of surgical types and their emetogenic potential.

Main Results:

  • Inhalational agents, particularly nitrous oxide, are associated with significant PONV. Older agents like cyclopropane have a high incidence, while newer agents like isoflurane, enflurane, and halothane have a lesser but still notable effect.
  • Intravenous anesthetics also vary in emetogenicity; propofol may be less emetogenic than older agents. Opioids are potent emetogens.
  • Patient factors such as female sex (3x higher prevalence than males), childhood susceptibility (2x adults), and a history of PONV or motion sickness are significant risk factors. Abdominal, gynecological, and strabismus surgeries are particularly associated with higher PONV rates.

Conclusions:

  • Multiple factors contribute to the risk of postoperative nausea and vomiting, including anesthetic choice, patient characteristics, and surgical procedure.
  • Awareness and identification of these risk factors are essential for proactive management and improved patient outcomes.
  • Enhanced focus on patient satisfaction necessitates adequate strategies for preventing and treating PONV.

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