Fluid Responsiveness in Spontaneously Ventilating Patient

February 25, 2021 updated by: Jin-Tae Kim, Seoul National University Hospital

Prediction of Fluid Responsiveness With Non-invasive Dynamic Parameters in Spontaneous Breathing Patients

The purpose of this study is to find out if non-invasive dynamic parameters can predict fluid responsiveness in spontaneous breathing patients.

Study Overview

Status

Not yet recruiting

Detailed Description

Knowing when to give fluids to the patient is very important in fluid therapy.It is appropriate to administer it to patients whose cardiac output will increase when the fluid is administered (a patient with fluid responsiveness). Appropriate fluid administration can hemodynamically stabilize the patient's condition and reduce unnecessary fluid administration, thereby reducing complications that occur when fluid is insufficient or excessive fluid is administered.

The most commonly used dynamic variables in clinical practice are pulse pressure variation (PPV), stroke volume variation (SVV), and systolic pressure variation that can be obtained by invasive arterial tube insertion. However, recently a non-invasive monitoring method is being used in more and more areas, and in many cases it is necessary to closely monitor the patient's hemodynamic status without mounting an arterial catheter. Therefore, if the variables measured by a non-invasive method can predict fluid responsiveness at a reliable level, it will be of great help in clinical practice.

According to previous studies, dynamic variables can relatively accurately predict fluid responsiveness only in patients undergoing mechanical ventilation. However, in actual clinic, it is necessary to evaluate fluid reactivity even in patients who are not under mechanical positive pressure ventilation. Accurate fluid treatment should be performed during or after surgery under spinal anesthesia in the recovery room. In addition, there are cases in which dynamic variables must be monitored non-invasively in spontaneous breathing patients who do not undergo mechanical ventilation even in intensive care units.

It is clinically meaningful to predict fluid responsiveness in spontaneous breathing patients using such a non-invasive method of monitoring. However, there is limited data on how to evaluate fluid responsiveness in these patient groups. Therefore, the purpose of this study is to evaluate whether fluid responsiveness can be predicted in spontaneous breathing patients using non-invasive dynamic variables.

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

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

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • for patients undergoing surgery under actual spinal anesthesia whose estimated blood loss during surgery is moderate to high (e.g. total knee arthroplasty, total hip arthroplasty)
  • Patients with a history of cerebrovascular disease
  • Patients with a history of 1 or 2 vessel disease
  • Left ventricle ejection fraction (LVEF) Patients with 30% or more and less than 55% of these patients
  • Patients who need close hemodynamic monitoring during operation
  • ASA (American Society of Anesthesiology) physical status classification system I, II, III
  • no difficulty in passive leg raising maneuver

Exclusion Criteria:

  • Patients unable to communicate
  • Patients who cannot or have difficulty in PLR (passive leg raising) maneuver (patients who cause pain when performing PLR due to trauma of the lower extremities, patients with spine disease that causes pain during PLR, and patient applying splint due to a fracture of the lower extremity)
  • Patients unable to attach the finger cuff of the ClearSight sytem to one of the fingers of both hands. (Patients applying a splint due to a fracture of both upper limbs, etc.)
  • Patients unable to perform transthoracic ultrasound examination (multiple trauma patients with rib fracture, etc.)
  • Patients having difficulty obtaining blood pressure waveforms through the ClearSight system due to poor peripheral vascular perfusion (uncontrolled diabetes patients, patients with peripheral vascular disease, etc.)
  • Patients with arrhythmia with moderate or higher risk such as atrial fibrillation or atrial flutter
  • Heart failure patients with less than 30% of the left ventricular ejection fraction(LVEF) on echocardiography or patients with moderate to severe left ventricular wall motor dysfunction, or patients with cardiovascular disease of 3 vessel disease
  • Other patients who are not appropriate to participate in the study as judged by the researcher

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

  • Primary Purpose: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Fluid challenge responder
If the ratio of the stroke volume change after passive leg raising is the same or larger than 10%, the patient is assigned to RESPONDER group.
Raise the patient's lower limb at a 45 degree angle while lying down
Experimental: Fluid challenge non-responder
If the ratio of the stroke volume change after passive leg raising is less than 10%, the patient is assigned to RESPONDER group.
Raise the patient's lower limb at a 45 degree angle while lying down

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
ClearSight PPV
Time Frame: before induction, 20 minutes
Pulse pressure variation measured by ClearSight System arterial waveform
before induction, 20 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
ClearSight SVV
Time Frame: before induction, 20 minutes
Stroke volume variation measured by ClearSight System
before induction, 20 minutes
normal ventilation △IVC (inferior vena cava) diameter
Time Frame: before induction, 20 minutes
△IVC diameter variation on normal ventilation
before induction, 20 minutes
augmented ventilation △IVC (inferior vena cava) diameter
Time Frame: before induction, 20 minutes
△IVC diameter variation on augmented ventilation
before induction, 20 minutes
normal ventilation △POP (pulse oximeter plethysmography)
Time Frame: before induction, 20 minutes
△POP on normal ventilation
before induction, 20 minutes
augmented ventilation △POP (pulse oximeter plethysmography)
Time Frame: before induction, 20 minutes
△POP on augmented ventilation
before induction, 20 minutes

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Jintae Kim, M.D, SNUH

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.

General Publications

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 (Anticipated)

March 5, 2021

Primary Completion (Anticipated)

June 11, 2021

Study Completion (Anticipated)

July 21, 2021

Study Registration Dates

First Submitted

September 23, 2020

First Submitted That Met QC Criteria

September 28, 2020

First Posted (Actual)

October 5, 2020

Study Record Updates

Last Update Posted (Actual)

March 2, 2021

Last Update Submitted That Met QC Criteria

February 25, 2021

Last Verified

February 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • H-2010-013-1161

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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