Real-time Decision Support for Postoperative Nausea and Vomiting (PONV) Prophylaxis

NCT ID: NCT02625181

Last Updated: 2019-03-07

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

27034 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-07-31

Study Completion Date

2017-11-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to determine how automated recommendations are best presented to optimize the adherence to guidelines on prophylaxis for nausea and vomiting after surgery.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Nausea and vomiting after surgery (PONV) is a common side effect of the surgical procedure, general anesthesia and opioid use occurring in about one third of patients. In addition to being very unpleasant for patients, it is associated with longer recovery room stays and increased costs. Much research has been done on prophylactic interventions that may be applied during the surgical procedure to prevent PONV. Current national guidelines recommend that a risk score is used to decide on the number of prophylactic interventions to administer to a patient. Based on specific characteristics of individual patients and the procedures that they are about to undergo, such a risk score predicts the risk of PONV for each individual. According to the national guidelines, patients with higher risks of PONV should receive more prophylactic interventions. However, in a busy operating room where the anesthesia provider performs multiple patient care tasks, closely following the recommendations to minimize the risk of PONV is often difficult.

Computers may help anesthesia providers to adhere to best practices for PONV prevention by providing so-called decision support. A decision support system for PONV automatically calculates the risk of PONV for an individual patient and presents this predicted risk to the anesthesia provider on the computer screen that is being used by the anesthesia team for record keeping. In recent studies, such decision support systems have been demonstrated to improve adherence to PONV guidelines, especially when a recommendation on the number of interventions is added to the predicted risk. However, in these studies there was still quite some room for improvement of the adherence to PONV guidelines. In general, implementation science is only beginning to understand how such decision support systems are best used to improve medical decision making and minimize practice variations among providers. Further study of how the design of decision support systems impacts the decision making of healthcare providers is therefore warranted.

In this proposed study, the investigators will implement several decision support elements for PONV that aim to help anesthesia providers to adhere to the departmental PONV guidelines during the anesthetic case. The study consists of three phases. The first phase is the preintervention phase - i.e. before the decision support has been implemented. The second phase is the first intervention phase with one CDSS feature added. The third phase is the second intervention phase with another CDSS feature added.

The decision support elements will provide information about the patient's predicted risk of PONV and the number of prophylactic interventions that the departmental guidelines recommend based on that risk. We will start with preoperative email notifications, followed by an element within the anesthesia information management system (AIMS) that are displayed around the start and end of the procedure. All forms of decision support only provide recommendations. The anesthesia provider is free to act on the message or ignore the notifications.

The investigators will compare the adherence to PONV guidelines and the actual occurrence of PONV (both nausea and emetic events: vomiting and retching) in the post-anesthesia care unit (PACU) between all study phases and between the different interventions. The goal of the comparison is to evaluate which decision support elements have an added value to optimize guideline adherence for PONV prophylaxis.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Postoperative Nausea and Vomiting

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

PONV clinical decision support system

Automated recommendations on PONV prophylaxis provided to anesthesia providers through the anesthesia information management system and email.

Group Type EXPERIMENTAL

Automated recommendation at the start of the case

Intervention Type PROCEDURE

The first notification is the main notification that informs the anesthesia providers at the start of anesthesia of the risk score for that individual patient and the recommended number of prophylactic interventions. The notification occurs within the anesthesia information management system (AIMS)

Automated notification at the start of surgery

Intervention Type PROCEDURE

The second notification within the AIMS will notify the anesthesia providers at the start of surgery when no prophylaxis has been given while three or more interventions were recommended.

Preoperative recommendations: by email

Intervention Type PROCEDURE

A recommendation on PONV prophylaxis to anesthesia providers through email at the Vanderbilt University Medical Center.

Automated notification at the end of surgery

Intervention Type PROCEDURE

A notification will remind anesthesia providers at the closing of surgery how many prophylactic interventions are required to adhere to the recommended number of interventions.

Anesthesia Information Management System (AIMS)

Intervention Type DEVICE

The anesthesia electronic record keeping system

Perioperative Data Warehouse (PDW)

Intervention Type DEVICE

The data warehouse that is used to gather perioperative data and create user reports. In this instance the PDW will be used to send the preoperative emails.

General anesthesia

Intervention Type PROCEDURE

Any anesthetic drugs that are used to induce general anesthesia above the level of sedation.

Elective surgery

Intervention Type PROCEDURE

Surgical procedures that are scheduled and not an emergency.

Propofol

Intervention Type DRUG

Anesthetic drug used to maintain general anesthesia

Sevoflurane

Intervention Type DRUG

Anesthetic drug used to maintain general anesthesia

Isoflurane

Intervention Type DRUG

Anesthetic drug used to maintain general anesthesia

Desflurane

Intervention Type DRUG

Anesthetic drug used to maintain general anesthesia

Scopolamine

Intervention Type DRUG

Prophylactic antiemetic

Droperidol

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Haloperidol

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Dexamethasone

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Promethazine

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Meclizine

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Aprepitant

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Metoclopramide

Intervention Type DRUG

Rescue antiemetic

Fentanyl

Intervention Type DRUG

Analgesic drug / Opioid

Sufentanil

Intervention Type DRUG

Analgesic drug / Opioid

Alfentanil

Intervention Type DRUG

Analgesic drug / Opioid

Remifentanil

Intervention Type DRUG

Analgesic drug / Opioid

Morphine

Intervention Type DRUG

Analgesic drug / Opioid

Meperidine

Intervention Type DRUG

Analgesic drug / Opioid

Hydromorphone

Intervention Type DRUG

Analgesic drug / Opioid

Methadone

Intervention Type DRUG

Analgesic drug / Opioid

Oxycodone

Intervention Type DRUG

Analgesic drug / Opioid

Oxymorphone

Intervention Type DRUG

Analgesic drug / Opioid

Hydrocodone

Intervention Type DRUG

Analgesic drug / Opioid

Ketamine

Intervention Type DRUG

Analgetic / Analgesic drug

Ondansetron

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Granisetron

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Dolasetron mesylate

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Palonosetron

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Tropisetron

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Ramosetron

Intervention Type DRUG

Prophylactic antiemetic \& rescue antiemetic

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Automated recommendation at the start of the case

The first notification is the main notification that informs the anesthesia providers at the start of anesthesia of the risk score for that individual patient and the recommended number of prophylactic interventions. The notification occurs within the anesthesia information management system (AIMS)

Intervention Type PROCEDURE

Automated notification at the start of surgery

The second notification within the AIMS will notify the anesthesia providers at the start of surgery when no prophylaxis has been given while three or more interventions were recommended.

Intervention Type PROCEDURE

Preoperative recommendations: by email

A recommendation on PONV prophylaxis to anesthesia providers through email at the Vanderbilt University Medical Center.

Intervention Type PROCEDURE

Automated notification at the end of surgery

A notification will remind anesthesia providers at the closing of surgery how many prophylactic interventions are required to adhere to the recommended number of interventions.

Intervention Type PROCEDURE

Anesthesia Information Management System (AIMS)

The anesthesia electronic record keeping system

Intervention Type DEVICE

Perioperative Data Warehouse (PDW)

The data warehouse that is used to gather perioperative data and create user reports. In this instance the PDW will be used to send the preoperative emails.

Intervention Type DEVICE

General anesthesia

Any anesthetic drugs that are used to induce general anesthesia above the level of sedation.

Intervention Type PROCEDURE

Elective surgery

Surgical procedures that are scheduled and not an emergency.

Intervention Type PROCEDURE

Propofol

Anesthetic drug used to maintain general anesthesia

Intervention Type DRUG

Sevoflurane

Anesthetic drug used to maintain general anesthesia

Intervention Type DRUG

Isoflurane

Anesthetic drug used to maintain general anesthesia

Intervention Type DRUG

Desflurane

Anesthetic drug used to maintain general anesthesia

Intervention Type DRUG

Scopolamine

Prophylactic antiemetic

Intervention Type DRUG

Droperidol

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Haloperidol

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Dexamethasone

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Promethazine

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Meclizine

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Aprepitant

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Metoclopramide

Rescue antiemetic

Intervention Type DRUG

Fentanyl

Analgesic drug / Opioid

Intervention Type DRUG

Sufentanil

Analgesic drug / Opioid

Intervention Type DRUG

Alfentanil

Analgesic drug / Opioid

Intervention Type DRUG

Remifentanil

Analgesic drug / Opioid

Intervention Type DRUG

Morphine

Analgesic drug / Opioid

Intervention Type DRUG

Meperidine

Analgesic drug / Opioid

Intervention Type DRUG

Hydromorphone

Analgesic drug / Opioid

Intervention Type DRUG

Methadone

Analgesic drug / Opioid

Intervention Type DRUG

Oxycodone

Analgesic drug / Opioid

Intervention Type DRUG

Oxymorphone

Analgesic drug / Opioid

Intervention Type DRUG

Hydrocodone

Analgesic drug / Opioid

Intervention Type DRUG

Ketamine

Analgetic / Analgesic drug

Intervention Type DRUG

Ondansetron

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Granisetron

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Dolasetron mesylate

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Palonosetron

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Tropisetron

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Ramosetron

Prophylactic antiemetic \& rescue antiemetic

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* All adult patients (18 years and older) that are scheduled for an elective surgical procedure under general anesthesia

Exclusion Criteria

* Patients undergoing emergency surgery or organ transplantation
* Patients that are transferred directly to the Intensive Care Unit after the end of the procedure
* Patients that die intraoperatively
* Procedures that only require a sedative level of anesthesia
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Vanderbilt University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Jonathan Wanderer

Medical Director of Procedure Preparation Center

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Jonathan P Wanderer, MD, MPhil

Role: PRINCIPAL_INVESTIGATOR

Vanderbilt University Medical Center, Division of Anesthesiology

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Provided Documents

Download supplemental materials such as informed consent forms, study protocols, or participant manuals.

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

151750

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.