Incidence, severity, and risk factors of postoperative nausea and vomiting in patients underwent the general anesthesia Maharaj Nakorn Chiang Mai Hospital: A prospective cohort study

Abstract

Background: Postoperative nausea and vomiting
(PONV) is one of common complications after general
anesthesia. It made patients felt uncomfortably and
decreased patient satisfaction. Objective: To study
the incidence, severity, and associated factors of
PONV in adult undergoing elective surgery under
general anesthesia at Maharaj Nakorn Chiang Mai
Hospital. Method: A prospective cohort study was
done in 300 patients who underwent general
anesthesia during October 2015- March 2016 and
recorded incidence, severity, and associated factors
of PONV. Results: Incidence of PONV occurred
32.3% and severity of nausea/vomiting were mild,
moderate and severity (80.4%, 18.6%, and 1.0%,
respectively). There were statistically significant
correlation in sex, ASA classification, history of
motion sickness, antiemetic prophylaxis, duration of
surgery, type of surgery, bleeding, and type of
intraoperative fluid. On the other hand, age, smoking,
type of anesthesia, volatile agents were not
significantly correlated with PONV in adult patients.
Conclusions: Influenced variables associated to
PONV were sex, history of motion sickness, antiemetic
prophylaxis, duration of surgery, nitrous oxide and
type of intravascular fluid.