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Hemodynamic InstabilityNCT01811966

Preoperative Volume Substitution in Elective Surgery Patients

A study testing Volume in people with Hemodynamic Instability and Hypovolemia, run by Philipps University Marburg at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Preoperative fasting can evoke a hypovolemia which may cause a hemodynamic instability during introduction of anesthesia. The purpose of this study is to test the hypothesis that a defined preoperative volume substitution compared to standard procedure will result in a reduced incidence of hemodynamic instabilities… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hemodynamic Instability, Hypovolemia, Anesthesia
What is being tested?
Volume
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
220 participants
Where
1 siteGermany
Study dates
Mar 2013to Feb 2015
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥ 18 years
  • thyreoid, parathyroid or gallbladder surgery
  • general anesthesia

Who cannot join

  • coronary artery disease
  • congestive heart disease (≥ New York Heart Association (NYHA) 2)
  • insulin dependent diabetes mellitus
  • renal insufficiency (creatinine > 2,0 mg/dl)
  • cerebrovascular disease
  • severe hypertension (≥ antihypertensive drugs)

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • University Hospital of Marburg, Department of Anesthesia

    Marburg, D-35033

Other trials in Germany

About this study

Official title: Preoperative Volume Substitution in Fasting Patients Undergoing Elective Surgery - Impact on Hemodynamic Stability During Anesthesia

Preoperative fasting can evoke a hypovolemia which may cause a hemodynamic instability during introduction of anesthesia.

The purpose of this study is to test the hypothesis that a defined preoperative volume substitution compared to standard procedure will result in a reduced incidence of hemodynamic instabilities during introduction of anesthesia in elective surgery patients.

Read the detailed description

The preoperative fasting period often lasts longer than 2 hours as recommended by various national and international anesthetic guidelines. Thus, hypovolemia is more often then anticipated. In awake patients this condition is often masked. Introduction of anesthesia often leads to an unmasking of hypovolemia with a consecutive hemodynamic instability.

Aim of the study is to test the hypothesis that a preoperative volume substitution (8 ml/kg RingerAcetate Solution in 15 min. prior to introduction of anesthesia) reduces possible hemodynamic instabilities during initiation of anesthesia.

Being tested
Volume, Control
Keywords
preoperative volume substitution, hypovolemia, preoperative fasting
Medical subject headings
Hypovolemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VolumeOther

    Also called RingerAcetate Solution, cristalloide

  • ControlOther

Study groups in NCT01811966
Study groupRoleWhat they receive
ControlSham comparatorpreoperative none substitution of i.v. fluids.
Receives: Other: Control
VolumeActive comparatorpreoperative substitution of a defined amount of i.v. fluids (8 ml/kg RingerAcetate solution for 15 min prior to introduction of anesthesia).
Receives: Other: Volume

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. hemodynamic instability

    Hemodynamic instability during induction of anesthesia (0-10 min), defined as at least one of the following:

    • Systolic blood pressure < 80 mmHg or decrease of 20% in preexistent hypertension
    • Mean blood pressure < 50 mmHg or decrease of 20% or > 20 mmHg in preexistent hypertension
    • Bradycardia < 45/min or decrease of 20% in preexistent bradycardia < 60/min.
    • Tachycardia > 120/min
    • Cardiac index < 2.0 l/min/m²

    Measured: at time of introduction of anesthesia

Secondary outcomes (4)
  1. Stroke volume index > 35 ml/m2

    Measured: at time of anesthesia

  2. Stroke volume variation < 12 %

    Measured: at time of anesthesia

  3. Enddiastolic area (EDA) > 10 cm2

    transthoracic echocardiographic parasternal short axis enddiastolic area

    Measured: at time of anesthesia

  4. inferior vana cava diameter (VCI) > 15 mm

    transthoracic echocardiographic inferior vena cava diameter

    Measured: at time of anesthesia

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Mar 2013 (estimated)
  2. Study startMar 2013
  3. Primary completionFeb 2015
  4. Study completionFeb 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Investigator
Enrolment
220 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01811966
Sponsor's protocol ID
UKGMVolume
Other IDs
UKGMVolume
Status last verified
Jul 2015
First submitted
13 Mar 2013
Last updated
29 Jul 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Volume in people with Hemodynamic Instability and Hypovolemia, run by Philipps University Marburg at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Jul 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

hemodynamic instability (time frame: at time of introduction of anesthesia). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jul 2015; AzTrials last refreshed its copy on 2 Nov 2026.

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