Continuous coronary sinus perfusion reverses ongoing myocardial damage in acute ischemia

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Evaluation of Coronary Flow Reserve After Myocardial Ischemia Reperfusion in Rats
06:32

Evaluation of Coronary Flow Reserve After Myocardial Ischemia Reperfusion in Rats

Published on: June 28, 2019

Francesco Onorati1, Giuseppe Santarpino, Lucia Cristodoro

  • 1Cardiac Surgery Unit, Magna Graecia University, Catanzaro, Italy. frankono@libero.it.

Artificial Organs
|January 12, 2010
PubMed

Insights

Continuous retrograde warm-blood perfusion (CRWBP) before cardiopulmonary bypass (CPB) significantly improves outcomes for patients experiencing cardiogenic shock or cardiac arrest (CS/CA) during acute coronary syndromes. This technique reduces myocardial damage, mortality, and hospital stay, enhancing overall survival.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Cardiovascular Research

Background:

  • Acute cardiogenic shock or cardiac arrest (CS/CA) before cardiopulmonary bypass (CPB) installation are critical events in acute coronary syndromes.
  • Immediate CPB installation is crucial for managing these life-threatening conditions.

Purpose of the Study:

  • To evaluate the efficacy of continuous retrograde warm-blood perfusion (CRWBP) before aortic cross-clamping (ACC) and immediate CPB installation in improving hospital outcomes for patients with CS/CA during acute coronary syndromes.
  • To compare outcomes between patients undergoing CRWBP with immediate CPB and those undergoing only immediate CPB.

Main Methods:

  • A comparative study involving 18 coronary artery bypass grafting (CABG) patients (Group A) with CS/CA receiving CRWBP and immediate CPB, versus 24 CABG patients (Group B) with CS/CA receiving only immediate CPB.
  • Key outcome measures included time to CPB, electrocardiographic normalization, duration of CPB and intra-aortic balloon pumping, incidence of postoperative acute myocardial infarction, mortality, need for inotropic support, Troponin I levels, lactate release, left ventricular ejection fraction (EF), wall motion score index, intubation time, ITU stay, and hospital stay.

Main Results:

  • CRWBP demonstrated a significantly higher rate of electrocardiographic normalization (P = 0.0001).
  • Group A (CRWBP) showed reduced CPB time (116.2 ± 21.2 min vs. 157.8 ± 32.4 min; P = 0.0001), shorter postoperative intra-aortic balloon pumping (36.2 ± 5.9 h vs. 77.8 ± 13.2 h; P = 0.0001), and lower incidence of postoperative acute myocardial infarction (P = 0.004), damage (P = 0.033), and death (P = 0.026).
  • CRWBP improved postoperative left ventricular ejection fraction (P = 0.017) and wall motion score index (P = 0.041), with shorter intubation (P = 0.0001), ITU (P = 0.001), and hospital stays (P = 0.0001).

Conclusions:

  • CRWBP before ACC and immediate CPB installation significantly reverses myocardial damage in patients with CS/CA during acute coronary syndromes.
  • This technique offers a straightforward benefit to hospital survival, reducing complications and improving recovery.
  • CRWBP is a valuable strategy for enhancing outcomes in high-risk cardiac surgery patients.

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