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Clinical Trial Summary

Patients with anterior wall AMI treated by PCI will undergo, after successful revascularization of the infarct artery, measurement of the left ventricular pressure, and femoral angiogram. Patients with elevated LV pressure and adequate femoral access will be randomized to standard pharmacological treatment of AMI vs. mechanical unloading by Impella-CP (on top of the standard treatment) for 36-48 hours. LV unloading will be guided by measurement of PCWP by Swan-Ganz catheter. On the day 4-7, and at 3 months after the AMI, the patients will undergo SPECT and 3D-echocardiography to assess ventricular remodeling and extent of the post-infarct scar. The patients will be followed for at least 12 months for the occurrence of heart failure and adverse cardiovascular events. The study will test the hypothesis, whether the LV mechanical unloading after PCI will attenuate post-infarct scar and cardiac remodeling.

Clinical Trial Description

1. Eligible patients with be screened before PCI

2. The patients with undergo coronary angiography and PCI according to common medical practice

3. At the end of the PCI procedure, after a successful revascularization, a pigtail catheter will be used to measure LV filling pressure and to perform femoral angiography (to evaluate femoral access).

4. Patients fulfilling angiographic and hemodynamic criteria will be randomized 1:1 to standard care vs. mechanical unloading by Impella-CP.

5. The patients will be treated on a CCU with experience with use of Impella-CP.

6. On the CCU, all patients will be monitored by a Swan-Ganz catheter for 48 hours.

7. The pump speed will be adjusted to maintain the lowest tolerated PCWP while avoiding suction events.

8. Mechanical unloading will last 36-48h. Afterwards, the Impella-CP will be explanted.

9. All patients will receive standard pharmacotherapy of AMI, according to the guidelines.

10. Revascularization of significant non-infarct lesions will be performed during the index hospitalization.

11. 3D-echocardiography and Tc-SPECT (D-SPECT) will be performed on the day 5-7 of the index hospitalization. LV phasic volumes and extent of nonperfused myocardium (scar) will be evaluated automatically, using software provided by the vendor.

12. 3D-echocardiography and Tc-SPECT will be repeated at 3 months after the AMI.

13. The patients will be followed by out-patient check-ups every 12 months. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT04562272
Study type Interventional
Source Institute for Clinical and Experimental Medicine
Contact Marek Sramko, MD, PhD
Phone +420731682681
Status Recruiting
Phase N/A
Start date September 21, 2020
Completion date December 31, 2023

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