Anesth Pain Med.  2008 Oct;3(4):255-259.

Association of 5-HT3A receptor Pro16Ser polymorphism with the incidence of PONV and the response to ondansetron in Korean patients

• Goo EK
• Hwang JW
• Song E
• So YM
• Ryu J
• Jeon YT
• Do SH
• Jang IJ

Abstract

BACKGROUND: Postopertative nausea and vomiting (PONV) are frequent and distressing side effects of surgery. Even though many drugs has been developed, PONV still remains unsolved problem. Ondansetron is a commonly used 5-HT3 receptor antagonist. It acts through specific binding to the 5-HT3A, 5-HT3B receptor complex. We hypothesized that patients with genetic variation in 5-HT3A receptor might have variable incidence of PONV and respond differently to ondansetron.
METHODS
We included 204 patients undergoing gynecologic laparoscopic surgery. PONV were documented during 24 hours after operation. Ondansetron was injected to every patient who had PONV at PACU and PONV reassessed after 15 minutes. DNA was extracted from blood and 5-HT3A Pro16Ser missense mutation was analyzed by using real-time PCR.
RESULTS
The incidence of PONV were 50% for wild type, 53% for heterozygote and 0% for homozygote. There were no significant differences between wild type and heterozygote in VAS of nausea and VAS change after ondansetron.
CONCLUSIONS
5-HT3A receptor Pro16Ser polymorphism is not associated with the incidence of PONV and the response to ondansetron in Korean patients.

Keyword

5-HT3A receptor; ondansetron; polymorphism; PONV; Pro16Ser

MeSH Terms

DNA
Genetic Variation
Heterozygote
Homozygote
Humans
Incidence
Laparoscopy
Mutation, Missense
Nausea
Ondansetron
Postoperative Nausea and Vomiting
Real-Time Polymerase Chain Reaction
Receptors, Serotonin, 5-HT3
Vomiting
DNA
Ondansetron
Receptors, Serotonin, 5-HT3