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CompletedNCT04775472EARLY-UNLOADUpdated Jan 12, 2024

Early Left Atrial Septostomy Versus Conventional Approach After Venoarterial Extracorporeal Membrane Oxygenation

An interventional study of Early left atrial septostomy within 12 hours after VA-ECMO implantation and Selective left atrial septostomy in Cardiogenic Shock, sponsored by Chonnam National University Hospital. Completed at 1 site in Korea, Republic of. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2024-01-12.

Sponsored by Chonnam National University Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
116
Allocation
Randomized
Ages
19 Years and older
Sex
All
01

Study summary

The use of venoarterial-extracorporeal membrane oxygenation(VA-ECMO) was associated with lower in-hospital mortality in patients with cardiogenic shock. However, VA-ECMO has a deleterious effect for hemodynamics. It can increase left ventricular end-diastolic pressure(LVEDP), followed by left ventricular dilatation, abnormal opening of aortic valve and jeopardizes of myocardial recovery. Therefore, several methods have been used to reduce LVEDP. Among these, left atrial septostomy is effective, but less invasive than surgical left ventricular unloading. However, there is few data regarding this issue. Therefore, the investigators will evaluate the effect of routine, early left atrial septostomy in patients with VA-ECMO for the treatment of cardiogenic shock.

Read the detailed description

Study Objectives:

To determine the effect of early left atrial septostomy versus conventional approach(left atrial septostomy only in cases of significant changes due to left ventricular end-diastolic pressure increase) in patients who received venoarterial-extracorporeal membrane oxygenation(VA-ECMO) for the treatment of cardiogenic shock.

Study Background:

Cardiogenic shock is due to myocardial dysfunction from multifactorial causes, which has high mortality. The treatment for cardiogenic shock includes early coronary revascularization, inotropes, vasopressors, or mechanical circulatory support, such as intraaortic balloon pump(IABP), VA-ECMO. However, the routine use of IABP is not recommended for the treatment of cardiogenic shock in recent guidelines. VA-ECMO can be easily implanted, and can maintain high cardiac output. In several studies, The use of VA-ECMO was associated with lower in-hospital mortality in patients with cardiogenic shock.

However, VA-ECMO has a deleterious effect for hemodynamics. It can increase left ventricular end-diastolic pressure(LVEDP), followed by left ventricular dilatation, abnormal opening of aortic valve and jeopardizes of myocardial recovery. Therefore, several methods have been used to reduce LVEDP. Among these, left atrial septostomy is effective, but less invasive than surgical left ventricular unloading. However, there is few data regarding this issue. Therefore, the investigators will evaluate the effect of routine, early left atrial septostomy in patients with VA-ECMO for the treatment of cardiogenic shock.

Study Hypothesis:

Early, routine left atrial septostomy for left heart unloading is superior compared to conventional approach to reduce in-hospital mortality and the duration of VA-ECMO.

02

Conditions studied

  • Cardiogenic Shock

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Keywords

  • Extracorporeal membrane oxygenation
  • Myocardial Infarction
  • Heart Diseases
  • Cardiovascular Diseases
  • Coronary Disease
03

In context

Shock, Cardiogenic

277 studies on the registry are indexed under Shock, Cardiogenic; 127 are open to participants now.

This study's enrollment of 116 is above the median of 80 across 127 interventional studies indexed under Shock, Cardiogenic.

Browse Shock, Cardiogenic studies →

Lead sponsor

Chonnam National University Hospital is the lead sponsor of 70 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Age more than 18 years old 2) Cardiogenic shock* 3) Successful VA-ECMO implantation
  • The definition of cardiogenic shock All these criteria should be met

    1. Systolic blood pressure \< 90 mmHg for 30 minutes, or needing inotrope or vasopressor to maintain systolic blood pressure > or = 90 mmHg
    2. Pulmonary congestion on chest X-ray or increased left ventricular filling pressure by cardiac catheterization
    3. At least one criteria of organ dysfunction

      • mental obtundation, clammy skin, oliguria, renal dysfunction, increased level of blood lactate

Exclusion criteria

Exclusion Criteria:

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  1. VA-ECMO after open heart surgery
  2. VA-ECMO for the treatment of non-cardiac shock
  3. Severe bleeding*
  4. Terminal malignancy
  5. Irreversible brain damage
  6. Pregnancy or lactation
  • The definition of severe bleeding Hemoglobin decrease after VA-ECMO or cannulation site bleeding is not a exclusion criteria

    1. Hypovolemic shock due to definite bleeding cause
    2. Identifiable bleeding causes: gastrointestinal bleeding, hemothorax, traumatic bleeding, central nervous system hemorrhage, pulmonary hemorrhage
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
116 participants (actual)

Study arms

  • Experimental
    Early left atrial septostomy group

    Early left atrial septostomy group will routinely receive left atrial septostomy within 12 hours after VA-ECMO implantation.

    Procedure: Early left atrial septostomy within 12 hours after VA-ECMO implantation

  • Active comparator
    Conventional approach group

    Conventional approach group will receive left atrial septostomy in cases of deleterious effect of increased LVEDP after VA-ECMO implantation, such as refractory pulmonary edema, abnormal opening of aortic valve, left ventricular dilatation, refractory ventricular tachycardia or fibrillation.

    Procedure: Selective left atrial septostomy

Interventions

  • ProcedureEarly left atrial septostomy within 12 hours after VA-ECMO implantation

    Early left atrial septostomy group will routinely receive left atrial septostomy within 12 hours after VA-ECMO implantation. Left atrial septostomy will be done using percutaneous technique.

  • ProcedureSelective left atrial septostomy

    Left atrial septostomy will be done in cases of deleterious effect of increased LVEDP after VA-ECMO implantation, such as refractory pulmonary edema, abnormal opening of aortic valve, left ventricular dilatation, refractory ventricular tachycardia or fibrillation.

06

What researchers measure

Primary outcomes

  1. Cumulative incidence rate of all-cause death

    Cumulative incidence rate of all-cause death

    Time frame: Up to 30 days

Secondary outcomes

  1. Rate of all-cause death or left atrial septostomy in conventional approach group

    Rate of all-cause death or left atrial septostomy in conventional approach group

    Time frame: Up to 30 days

  2. Rate of left atrial septostomy in conventional approach group

    Rate of left atrial septostomy in conventional approach group

    Time frame: Up to 30 days

  3. Incidence rate of all-cause death during index admission

    Incidence rate of all-cause death during index admission

    Time frame: Up to 6 months

  4. Cumulative incidence rate of cardiac death

    Cumulative incidence rate of cardiac death

    Time frame: Up to 30 days

  5. Cumulative incidence rate of non-cardiac death

    Cumulative incidence rate of non-cardiac death

    Time frame: Up to 30 days

  6. Weaning rate from venoarterial extracorporeal membrane oxygenation during index admission

    Weaning rate from venoarterial extracorporeal membrane oxygenation during index admission

    Time frame: Up to 6 months

  7. Rate of disappearance of pulmonary edema on chest X-ray during index admission

    Rate of disappearance of pulmonary edema on chest X-ray during index admission

    Time frame: Up to 6 months

  8. Weaning rate from mechanical ventilator during index admission

    Weaning rate from mechanical ventilator during index admission

    Time frame: Up to 6 months

  9. Intensive care unit length of stay during index admission

    Intensive care unit length of stay during index admission

    Time frame: Up to 6 months

  10. Hospital length of stay

    Hospital length of stay

    Time frame: Up to 6 months

  11. Lactate normalization rate

    Lactate normalization rate

    Time frame: Up to 30 days

  12. Lactate clearance rate

    Lactate clearance rate

    Time frame: Up to 30 days

  13. Rate of renal replacement therapy during index admission

    Rate of renal replacement therapy during index admission

    Time frame: Up to 6 months

  14. Rate of limb ischemia during index admission

    Rate of limb ischemia during index admission

    Time frame: Up to 6 months

  15. Rate of infection during index admission

    Rate of infection during index admission

    Time frame: Up to 6 months

  16. Rate of transient ischemic attack or stroke during index admission

    Rate of transient ischemic attack or stroke during index admission

    Time frame: Up to 6 months

  17. Rate of BARC bleeding type 3 or 5 during index admission

    Rate of BARC bleeding type 3 or 5 during index admission

    Time frame: Up to 6 months

  18. Rate of bridge to ventricular assist device or heart transplantation during index admission

    Rate of bridge to ventricular assist device or heart transplantation during index admission

    Time frame: Up to 6 months

  19. Rate of major vascular injury or cardiac tamponade during left atrial septostomy

    Rate of major vascular injury or cardiac tamponade during left atrial septostomy

    Time frame: Up to 30 days

  20. Cumulative incidence rate of all-cause death

    Cumulative incidence rate of all-cause death

    Time frame: Up to 12 months

  21. Cumulative incidence rate of cardiac death

    Cumulative incidence rate of cardiac death

    Time frame: Up to 12 months

  22. Cumulative incidence rate of non-cardiac death

    Cumulative incidence rate of non-cardiac death

    Time frame: Up to 12 months

  23. Re-hospitalization rate due to heart failure

    Re-hospitalization rate due to heart failure

    Time frame: Up to 12 months

  24. All-cause death or re-hospitalization rate due to heart failure

    All-cause death or re-hospitalization rate due to heart failure

    Time frame: Up to 12 months

07

Study locations

1 site
  • Chonnam National University Hospital
    Gwangju, Korea, Republic of
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04775472
Lead sponsor
Chonnam National University Hospital
Responsible party
Min Chul Kim (Associate Professor, Chonnam National University Hospital) — Principal investigator
First posted
Mar 1, 2021
Start date
Mar 4, 2021
Primary completion
Mar 14, 2022
Completion
Oct 31, 2023
Last update
Jan 12, 2024

Study contacts

Min Chul Kim, Professor
principal investigator · Chonnam National University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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