AzTrials
AzTrials

Diastolic DysfunctionNCT03534440

Assessment of Diastolic Function in High Risk Patients Undergoing Major Vascular Surgery

An observational study of Diastolic Dysfunction and Heart Failure, run by Medical University of Warsaw at 1 site in Poland.

Completed

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

Official record
Search all trials

Trial summary

Patients scheduled for Thoracic Endovascular Aortic Repair (TEVAR) surgery will have transthoracic echocardiography evaluation of left ventricle diastolic function during the perioperative period. Read more about this study

Who is it for?
Ages 60 years and older
How many people
30 participants
Where
1 sitePoland
Study dates
1 Jul 2018to 30 Jan 2020
Phase
Observational
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 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients scheduled for a Thoracic Endovascular Aortic Repair

Who may be able to join

  • scheduled TEVAR
  • >60 years old

Who cannot join

  • Atrial fibrillation or other non-sinus rhythms
  • Atrioventricular blocks
  • Heart rate change more than 25% postoperatively
  • Not adequate transthoracic view
  • Postoperative shock
  • Sepsis

Trial locations and contacts

1 site in 1 country.

Poland1 site
  • Medical University Of Warsaw

    Warsaw, Mazovian, 02-091

Other trials in Poland

About this study

Official title: Assessment of Left Ventricle Diastolic Function in High Risk Patients Undergoing Major Vascular Surgery as an Early Indicator of Cardiac Failure. Observational Study

Patients scheduled for Thoracic Endovascular Aortic Repair (TEVAR) surgery will have transthoracic echocardiography evaluation of left ventricle diastolic function during the perioperative period.

Read the detailed description

Patients undergoing TEVAR surgery are a high risk group of developing perioperative cardiovascular complications.

Left ventricle diastolic dysfunction is common in this group of patients because of the prevalence of risk factors: > 60 years old, hypertension, smoking history and diabetes.

Because of many predisposing factors that occur during the surgery: stress respond, fluid shifts, anaesthesia and mechanical ventilation. Deterioration of the diastolic function is likely to occur in perioperative period

In this study, the investigators will evaluate change in left ventricle diastolic function as a marker for early detection of a myocardial failure in patients scheduled for an elective TEVAR surgery. The examination will be performed preoperatively, shortly after the surgery and 24 hours after the surgery.

Aim: The aim of the study is to evaluate the diastolic function of left ventricle in perioperative period after high risk surgery. This may provide a valuable information in preoperative risk stratification and postoperative therapy guidance.

Keywords
Diastolic Dysfunction, Anesthesia, Preoperative assessment, Postoperative care, TEVAR
Medical subject headings
Heart Failure, Aortic Aneurysm

What is being measured

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

  1. Change in left ventricle diastolic function in time

    Echocardiographic assessment of change in left ventricle diastolic function repeated in time intervals:

    Baseline before the surgery, 2 and 24 hours after the surgery

    Measured: Baseline, 2 hours and 24 hours

Secondary outcomes (9)
  1. Change in biochemistry markers: troponins

    Assessment of change in level of troponins. Baseline before the surgery, 2 and 24 hours after the surgery

    Measured: Baseline, 2 hours and 24 hours

  2. Change in biochemistry markers: brain natriuretic peptide

    Assessment of change in level of brain natriuretic peptide. Baseline before the surgery, 2 and 24 hours after the surgery

    Measured: Baseline, 2 hours and 24 hours

  3. Change in left ventricle systolic function

    Echocardiographic assessment of change in left ventricle systolic function repeated in time intervals:

    Baseline before the surgery, 2 and 24 hours after the surgery

    Measured: Baseline, 2 hours and 24 hours

  4. Hemodynamic parameters: Heart rate

    Heart rate during echocardiography evaluation.

    Measured: Baseline, 2 hours and 24 hours

  5. Hemodynamic parameters: Systolic and diastolic pressure

    Systolic and diastolic pressure measurements during echocardiography evaluation. Record vasopressors requirement.

    Measured: Baseline, 2 hours and 24 hours

  6. Fluid balance

    Monitoring of diuresis hourly, fluid losses and fluids intake

    Measured: 72 hours

  7. Kidney function

    Monitoring of glomerular filtration rate and requirement for a dialysis daily

    Measured: 72 hours

  8. Length of stay in hospital

    Documentation of length of stay in hospital since the surgery

    Measured: up to 14 days

  9. Mortality

    Documentation of in-hospital mortality and 30 days mortality

    Measured: up to 30 days

Timeline

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

  1. First posted23 May 2018
  2. Study start1 Jul 2018
  3. Primary completion19 Dec 2019
  4. Study completion30 Jan 2020

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03534440
Sponsor's protocol ID
DD-TEVAR-2018
Status last verified
Jul 2020
First submitted
15 Apr 2018
Last updated
7 Jul 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Diastolic Dysfunction and Heart Failure, run by Medical University of Warsaw at 1 site in Poland.

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 2 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 7 Jul 2020. 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 Poland. 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. 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?

Change in left ventricle diastolic function in time (time frame: Baseline, 2 hours and 24 hours). 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 7 Jul 2020.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in