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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04719910
Other study ID # ANES-2021-29548
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 1, 2021
Est. completion date May 16, 2023

Study information

Verified date May 2023
Source University of Minnesota
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Postoperative nausea/vomiting (PONV) is a common problem following surgery and anesthesia. There are risk factors that increase the incidence of PONV that are related to the patient, to the surgical procedure or to the anesthetic agents. At the subjective level PONV is described as worse and more feared than postoperative pain by many patients. At the objective level it increases the length of stay in the recovery room, it results in unplanned hospital admission and Emergency Room visits, and therefore increased cost of care. A lot of research work has been done to identify pharmacological agents to prevent and treat PONV. The higher the risk of a patient the higher number of these drugs are combined for prophylaxis. However, these drugs have significant side effects of their own. Much less attention has been paid to potential non-pharmacological PONV prevention options. The purpose of our study is to investigate the putative role of the natural stimulation of normal gastrointestinal function via the Pavlovian reflex. We seek to find a natural method with no side effects to improve PONV prophylaxis in patients with risk factors for that postoperative complication.


Description:

The study will be conducted in 18-40 years old female volunteers who are undergoing planned, elective, non-cancer surgical procedure as outpatients, and who are identified to have either history or significant risk of PONV. The latter will be calculated by the questionnaire we currently use during our routine preoperative anesthesia evaluation (see in detail below in the Study design section). Patients who meet the study enrollment criteria will be identified on the surgical schedule the day before the planned intervention. The recruitment will occur during the preoperative admission process. These patients will be randomly assigned to either the study group or to the control group. The study group will watch videos of preparation and cooking of their favorite foods while waiting for their surgery. Patients in the control group will watch videos that are not food related. The anesthesia team in the OR and the PACU team who manages the patient's postoperative recovery will be blinded to which group the patient is enrolled to. The intraoperative antiemetics will be provided by the study team as outlined in the Study design section below. The anesthesia protocol will be standardized. All patient who are enrolled in the study will require general anesthesia with endotracheal intubation. After intravenous induction, muscle relaxation with rocuronium and intubation of the trachea anesthesia will be maintained with sevoflurane and opioid boluses for analgesia as deemed necessary by the anesthesia team. Antiemetics (as described below) will be administered 30 minutes prior to planned emergence, residual muscle relaxant will be reversed with sugammadex. The patients will be taken to the recovery room. Beyond their routine vital sign and pain score monitoring and observation the occurrence and degree of nausea and vomiting, as well as the time to discharge to home or unplanned admission due to therapy resistant vomiting will be recorded.


Recruitment information / eligibility

Status Completed
Enrollment 70
Est. completion date May 16, 2023
Est. primary completion date May 16, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria: - 18-40 years old female - American Society of Anesthesiologists Physical Status I and II - Personal history of postoperative nausea and vomiting - Personal history of motion sickness - Non-smoker status - Undergoing scheduled elective surgical procedures and general anesthesia for non-cancer surgery of: - breast - gynecology - ear, nose and throat - eye - Duration of surgery less than 3 hours will be enrolled in the study. Exclusion Criteria: - Ages older than 40 years and younger than 18 years - Morbid obesity (BMI > 35 kg/m2) - Uncontrolled gastroesophageal reflux disease (GERD) - Smoking - Cancer and chemotherapy - Vertigo - Meniere's disease - Pseudotumor cerebri and other central nervous diseases that may induce nausea and vomiting - Prolonged (> 15 minutes) intraoperative hypotension - Estimated blood loss > 20 % of estimated blood volume - Emergency surgery

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Visual exposure to taped food preparation
Patients in the study group can watch the preparation of the the type of food she prefers to eat normally.
Visual exposure to topics not related to food
Patients in the placebo group can choose a video that is relaxing but not related to food.

Locations

Country Name City State
United States University of Minnesota Minneapolis Minnesota

Sponsors (1)

Lead Sponsor Collaborator
University of Minnesota

Country where clinical trial is conducted

United States, 

References & Publications (16)

Amirshahi M, Behnamfar N, Badakhsh M, Rafiemanesh H, Keikhaie KR, Sheyback M, Sari M. Prevalence of postoperative nausea and vomiting: A systematic review and meta-analysis. Saudi J Anaesth. 2020 Jan-Mar;14(1):48-56. doi: 10.4103/sja.SJA_401_19. Epub 2020 Jan 6. — View Citation

Apfel CC, Korttila K, Abdalla M, Kerger H, Turan A, Vedder I, Zernak C, Danner K, Jokela R, Pocock SJ, Trenkler S, Kredel M, Biedler A, Sessler DI, Roewer N; IMPACT Investigators. A factorial trial of six interventions for the prevention of postoperative nausea and vomiting. N Engl J Med. 2004 Jun 10;350(24):2441-51. doi: 10.1056/NEJMoa032196. — View Citation

Apfel CC, Laara E, Koivuranta M, Greim CA, Roewer N. A simplified risk score for predicting postoperative nausea and vomiting: conclusions from cross-validations between two centers. Anesthesiology. 1999 Sep;91(3):693-700. doi: 10.1097/00000542-199909000-00022. — View Citation

Darvall JN, Handscombe M, Leslie K. Chewing gum for the treatment of postoperative nausea and vomiting: a pilot randomized controlled trial. Br J Anaesth. 2017 Jan;118(1):83-89. doi: 10.1093/bja/aew375. — View Citation

Davis CJ, Lake-Bakaar GV, Grahame-Smith DG. Nausea and Vomiting: Mechanisms and Treatment. Springer Science & Business Media; 2012

Dzwonczyk R, Weaver TE, Puente EG, Bergese SD. Postoperative nausea and vomiting prophylaxis from an economic point of view. Am J Ther. 2012 Jan;19(1):11-5. doi: 10.1097/MJT.0b013e3181e7a512. — View Citation

Fortier J, Chung F, Su J. Unanticipated admission after ambulatory surgery--a prospective study. Can J Anaesth. 1998 Jul;45(7):612-9. doi: 10.1007/BF03012088. — View Citation

Gan TJ. Mechanisms underlying postoperative nausea and vomiting and neurotransmitter receptor antagonist-based pharmacotherapy. CNS Drugs. 2007;21(10):813-33. doi: 10.2165/00023210-200721100-00003. — View Citation

Habib AS, Chen YT, Taguchi A, Hu XH, Gan TJ. Postoperative nausea and vomiting following inpatient surgeries in a teaching hospital: a retrospective database analysis. Curr Med Res Opin. 2006 Jun;22(6):1093-9. doi: 10.1185/030079906X104830. — View Citation

Hirsch J. Impact of postoperative nausea and vomiting in the surgical setting. Anaesthesia. 1994 Jan;49 Suppl:30-3. doi: 10.1111/j.1365-2044.1994.tb03580.x. — View Citation

Lee A, Done ML. The use of nonpharmacologic techniques to prevent postoperative nausea and vomiting: a meta-analysis. Anesth Analg. 1999 Jun;88(6):1362-9. doi: 10.1097/00000539-199906000-00031. — View Citation

Macario A, Weinger M, Carney S, Kim A. Which clinical anesthesia outcomes are important to avoid? The perspective of patients. Anesth Analg. 1999 Sep;89(3):652-8. doi: 10.1097/00000539-199909000-00022. — View Citation

Pierre S, Benais H, Pouymayou J. Apfel's simplified score may favourably predict the risk of postoperative nausea and vomiting. Can J Anaesth. 2002 Mar;49(3):237-42. doi: 10.1007/BF03020521. — View Citation

Sarles H, Dani R, Prezelin G, Souville C, Figarella C. Cephalic phase of pancreatic secretion in man. Gut. 1968 Apr;9(2):214-21. doi: 10.1136/gut.9.2.214. No abstract available. — View Citation

Sherif L, Hegde R, Mariswami M, Ollapally A. Validation of the Apfel Scoring System for Identification of High-risk Patients for PONV. Karnataka Anaesth J. 2015;1(3):115-117

Stern RM, Jokerst MD, Levine ME, Koch KL. The stomach's response to unappetizing food: cephalic-vagal effects on gastric myoelectric activity. Neurogastroenterol Motil. 2001 Apr;13(2):151-4. doi: 10.1046/j.1365-2982.2001.00250.x. — View Citation

* Note: There are 16 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Change of the incidence of postoperative vomiting The number of the episodes of emesis will be counted and recorded in the patients' records. Immediately postoperative
Primary Change of postoperative anti emetic drug administration The type and dose of administered antiemetic drugs will be recorded and analyzed in the patients' charts. Immediate postoperative
Secondary Change of recovery room length of stay The time between arriving to and discharge from the recovery room will be recorded in the patients' charts. Immediate postoperative
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