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Aortic Aneurysm, AbdominalCCVSNCT03188341

Cardiac Complication After Vascular Surgery

An observational study of Aortic Aneurysm, Abdominal and Ventricular Arrythmia, run by Pomeranian Medical University Szczecin.

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

The vascular surgery is a highest risk procedure when considering postoperative complications associated with the cardiovascular system. The leading clinical presentation is acute hemodynamic decompensation. However, one of the possible pathomechanisms might be repolarization disturbances. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
vascular surgery procedure
How many people
100 participants
Where
No sites listed yet
Study dates
Dec 2010to Jun 2017
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients diagnosed with abdominal subrenal aortic aneurysms or peripheral arterial disease scheduled for an elective "open" vascular surgery procedure. The study was conducted by the team from Department of Anaesthesiology, Intensive Care and Acute Poisoning of the tertiary teaching hospital at the Pomeranian Medical University in Szczecin, Poland.

Who may be able to join

  • adult patients diagnosed with abdominal subrenal aortic aneurysms or peripheral arterial disease scheduled for an elective "open" vascular surgery procedure

Who cannot join

  • heart stimulation,
  • atrioventricular and intraventricular conduction defects,
  • atrial fibrillation recorded before of the study,
  • antiarrhythmic drug treatment (except beta-blockers),
  • unoptimal patient general status (uncontrolled diabetes, active infection)
  • reoperation
  • emergency operations

About this study

Official title: The Reasons of Repolarization Disturbances Disclosure in Vascular Surgery

The vascular surgery is a highest risk procedure when considering postoperative complications associated with the cardiovascular system. The leading clinical presentation is acute hemodynamic decompensation. However, one of the possible pathomechanisms might be repolarization disturbances. Many of perioperative risk factors of cardiac complications are modifiable. The identification may help in the global perioperative risk reduction.

Aim: The aim of the study was an identification of the factors which may release clinically overt repolarization disturbances.

Methods: The study group consisted of 100 patients, diagnosed with abdominal subrenal aortic aneurysms or peripheral arterial disease scheduled for an elective "open" vascular surgery procedure. The authors investigated whether age, gender, comorbidities or some perioperative factors (including hemodynamic, metabolic or genetic) were related to the occurrence of clinically concealed repolarization disturbances or clinically disclosed cardiac complications in postoperative time up to 30 day and one year after vascular surgery procedure.

Read the detailed description

Vascular surgery is thought as the highest risk procedure in the context of cardiac complications. The range may include acute coronary syndrome, acute circulatory failure, severe arrhythmias, syncope and sudden cardiac death. The patient population is considered as a high risk, too. Popular calculators used for risk stratifications are based on preoperative patient's history and some general laboratory results. However, general status of the patient changes dynamically during vascular procedures leading to acquired increased risk. For this reason, sole preoperative risk prediction based on standard calculators is unsuitable and suboptimal. Advanced monitoring systems may record some temporary disturbances (e.g. ventricular repolarization disturbances), which may be asymptomatic. The clinical significance in postoperative risk prediction of such observations remains undefined. On the other hand, many of perioperative cardiac complications are caused by modifiable factors. The identification may help in the global perioperative risk reduction.

Being tested
vascular surgery procedure
Keywords
vascular surgery, repolarization disturbances, cardiac complications, high risk patient, high risk procedure
Medical subject headings
Aortic Aneurysm, Abdominal, Peripheral Arterial Disease

What participants receive

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

  • vascular surgery procedureOther

    • an elective "open" vascular surgery procedure
    • ECG Holter recording during the procedure and 24 hours after operation (continuous electrocardiographic tracing (digital Holter ECG monitor)
Study groups in NCT03188341
Study groupRoleWhat they receive
vascular surgery patients* clinically concealed repolarization disturbances during vascular surgery procedure * clinically disclosed cardiac complications during and after vascular surgery procedure
Receives: Other: vascular surgery procedure

What is being measured

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

  1. cardiac complications

    cardiac complications according to European Society of Cardiology

    Measured: up to 30 days after vascular procedure

Secondary outcomes (2)
  1. cardiac complications

    cardiac complications according to European Society of Cardiology

    Measured: during surgical procedure

  2. cardiac complications

    cardiac complications according to European Society of Cardiology

    Measured: one year

Timeline

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

  1. First posted15 Jun 2017
  2. Study startDec 2010
  3. Primary completionDec 2016
  4. Study completionJun 2017

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
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03188341
Sponsor's protocol ID
PomeranianMU
Acronym
CCVS
Status last verified
Jun 2017
First submitted
8 Jun 2017
Last updated
15 Jun 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Aortic Aneurysm, Abdominal and Ventricular Arrythmia, run by Pomeranian Medical University Szczecin.

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 1 inclusion and 7 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 15 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

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?

cardiac complications (time frame: up to 30 days after vascular procedure). 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 15 Jun 2017.

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