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. 1986 Mar;13(1):113–122.

Myocardial Salvage Prior to Emergency Coronary Bypass Surgery for PTCA-Induced Coronary Occlusion

Ulrich W Busch 1, Ulrich Pfeiffer 1, Richard Bauer 1, Ulrich Renner 1, Rudolf Babic 1, Günther Blümel 1, Hans Blömer 1
PMCID: PMC324607  PMID: 15226841

Abstract

The possibility of prolonged, selective coronary perfusion via angioplasty catheters was evaluated. A pump was developed featuring minimal hemolysis even at high pump pressures. Pressure requirements differed greatly between various catheter types. Catheter-induced hemolysis did not correlate with pump pressure and was mainly due to a turbulent jet effect through sideholes. In 20 of 22 closed-chest dogs, myocardial ischemia could be greatly reduced or completely prevented for over 2 hours after proximal LAD or Cx occlusion. With flow rates between 1 and 2.5 ml/min/kg body weight and using the ECG and coronary venous O2 saturation for rate adjustment, pressure within the selectively perfused vessel never reached critical values. Thus, with the appropriate equipment, prolonged coronary perfusion is feasible. In some cases of percutaneous transluminal coronary angioplasty-(PTCA) induced coronary occlusion, it may prevent ischemic myocardial damage between PTCA-induced acute coronary occlusion and subsequent surgical revascularization.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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