Relationship Between Genetic Polymorphism and Postoperative Nausea and Vomiting in Chinese Han Population

September 13, 2020 updated by: Fujian Medical University Union Hospital

Relationship Between Genetic Polymorphism and Postoperative Nausea and Vomiting Undergoing Breast Surgery With General Anesthesia in Chinese Han Population

Postoperative nausea and vomiting ( PONV ) is one of the common complications after general anesthesia while genetic factors may play an important role in Postoperative nausea and vomiting. In this study, the investigators investigated the relationship between gene polymorphism ( such as single nucleotide polymorphism ) of the gene HTR3A ( 5-hydroxytryptamine receptor 3A ), HTR3B ( 5-hydroxytryptamine receptor 3B ), HTR3C ( 5-hydroxytryptamine receptor 3C ) and TACR1 ( tachykinin receptor 1 ) etc. with nausea and vomiting after general anesthesia. Simultaneously, the investigators explored the influencing factors of nausea and vomiting.

Study Overview

Status

Completed

Detailed Description

Materials and methods:

Demographic data and risk factors responsible for PONV, including the history of PONV and motion sickness, were collected preoperatively by interviewing participants the day before anesthesia.

All study subjects received a standardized anesthesia regimen. General anesthesia was induced by midazolam 0.04 mg/kg, propofol 1.5 mg/kg, sufentanil 0.4 μg/kg, and cisatracurium 0.2 mg/kg (to facilitate tracheal intubation) given intravenously.Participants' lungs were ventilated with 50% oxygen in air.

During general anesthesia, concentration of sevoflurane maintained 1.0% to 3.0% at the discretion of anesthetist who was not involved in the study. General anesthesia also uses propofol 1 mg kg-1 h-1 and sufentanil 0.1 μg kg-1 h-1 by continuous intravenous infusion. An Entropy index monitor was used to maintain the appropriate anesthesia depth by 40-60. Participants received a repeated bolus of sufentanil 0.1 μg/kg or cisatracurium intravenously on demand.

After surgery the investigators recorded the data such as Anesthesia duration, doses of sufentanil and propofol and so on.

At the end of surgery and after returning to the ward, flurbiprofen axetil 50 mg injection i.v. was administered as an analgesic therapy, respectively. Cholinesterase inhibitor-based neuromuscular reversal drugs and vitamine B6 were not administered after surgery. Bucinnazine hydrochloride 100 mg intramuscular injection (i.m.) as a rescue medication was administered to any participant whose visual analogue scale/score (VAS) was > 3.

Ondansetron was given intravenously to the participants if necessary or requested . Unaware of the genotypes of the subjects, the investigators collected the participants' data including nausea, vomiting and pain.

Study Type

Observational

Enrollment (Actual)

568

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Probability Sample

Study Population

Han population who were admitted to department of breast surgery, Fujian Medical University Union Hospital.

Description

Inclusion Criteria:

  • Undergoing breast surgery with general anesthesia
  • American Society of Anesthesiologists Physical Status Classifications 1-2
  • No history of smoking
  • body mass index (BMI) <35 kg/m2

Exclusion Criteria:

  • Declined to participate
  • Had used antiemetics, steroids, H2 antagonists, anticholinergics, antihistamines, butyrophenones, phenothiazines, metoclopramide or opioids within 24 hours
  • Gastroesophageal reflux, gastrointestinal obstruction or ulcer, vestibular or hearing dysfunction
  • Liver impairment, renal impairment, psychiatric disorder, chronic pain
  • Pregnant and lactating patients
  • Requiring postoperative patient-controlled analgesia
  • Requiring prophylactic use of antiemetics
  • Allergic to drugs related in the study
  • Receiving chemotherapy within one week before surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Whether the participants occur nausea or not
Time Frame: Period of 0 to 6 hours after surgery
Nausea was defined as a feeling of wanting to throw up or about to throw up.
Period of 0 to 6 hours after surgery
Whether the participants occur vomiting or not
Time Frame: Period of 0 to 6 hours after surgery
Vomiting was defined as the discharge of the stomach contents, while retching as an involuntary attempt to vomit that did not produce stomach contents. Retching was considered as vomiting.
Period of 0 to 6 hours after surgery
Whether the participants occur nausea or not
Time Frame: Period of 6 to 24 hours after surgery
Nausea was defined as a feeling of wanting to throw up or about to throw up.
Period of 6 to 24 hours after surgery
Whether the participants occur vomiting or not
Time Frame: Period of 6 to 24 hours after surgery
Vomiting was defined as the discharge of the stomach contents, while retching as an involuntary attempt to vomit that did not produce stomach contents. Retching was considered as vomiting.
Period of 6 to 24 hours after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Level of nausea
Time Frame: Within 24 hours after surgery
The level of participants' nausea was rated on four-point scales: 0=no nausea; 1=mild nausea with activities; 2=mild nausea at rest; and 3=se-vere nausea at rest.
Within 24 hours after surgery
Number of vomiting
Time Frame: Within 24 hours after surgery
The investigators defined an emetic episode as a single occurrence of vomiting/retching or as a series of immediately successive vomiting/retching. However, vomiting/retching had to be separated by at least 1 minute to be classified as a single emetic episode.
Within 24 hours after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Liangcheng Zhang, Ph.D, Fujian Medical University Union Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2013

Primary Completion (Actual)

January 31, 2020

Study Completion (Actual)

January 31, 2020

Study Registration Dates

First Submitted

October 6, 2018

First Submitted That Met QC Criteria

October 11, 2018

First Posted (Actual)

October 15, 2018

Study Record Updates

Last Update Posted (Actual)

September 16, 2020

Last Update Submitted That Met QC Criteria

September 13, 2020

Last Verified

October 1, 2018

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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