OBJECTIVE
To analyze and compare the results of various types of cardioplegia in aortic valve replacement.
MATERIAL AND METHODS
PubMed, Embase, Cohrane CENTRAL, E-library and Medline databases were reviewed. We used the following keywords: «aortic valve replacement», «cardioplegia», «cold blood cardioplegia», «warm blood cardioplegia», «crystalloid cardioplegia», «blood cardioplegia». Finally, we found 53 articles published between 1998 and 2021.
RESULTS
When comparing cold blood cardioplegia and crystalloid cardioplegia in patients with reduced left ventricular ejection fraction <30%, we found higher survival and lower serum markers of myocardial damage after cold blood cardioplegia. Compared to warm blood cardioplegia, crystalloid cardioplegia reduced the incidence of inotropic support (p<0.05) within 24 hours after surgery. Spontaneous rhythm recovery was more common in the same group (p<0.05). When comparing warm and cold blood cardioplegia, we found shorter postoperative ICU-stay after warm cardioplegia. Spontaneous rhythm recovery was more common after warm blood cardioplegia (p<0.05), and lower incidence of postoperative atrial fibrillation was observed (p<0.05). We found higher left ventricular ejection fraction after warm blood cardioplegia (p<0.05). When comparing cold blood cardioplegia and Del Nido cardioplegia, we found higher incidence of inotropic support after blood cardioplegia (p<0.05). Incidence of kidney damage was higher after blood cardioplegia (p<0.05).
CONCLUSION
Warm blood may be preferable in aortic valve replacement if it is applied in accordance with recommendations and characteristics of each patient.