title: Blood damage related to cardiopulmonary bypass: in vivo and in vitro comparison of two different centrifugal pumps.
abstract: Cardiopulmonary bypass (CPB) induces hemolysis and the activation of the inflammatory and coagulation systems. Several components of the CPB equipment may contribute to such phenomenon. We tested the effects of two differently designed centrifugal pumps (Bio-Pump, Medtronic and Revolution, Cobe) on several markers of hemolysis, coagulation, and inflammation: plasma free hemoglobin,prothrombin fragment 1.2, platelet factor 4, and P-selectin. Twenty patients requiring coronary artery bypass grafting were randomized to undergo CPB with one of the study centrifugal pumps, and 10 experiments (5 for each pump) were performed with a closed loop circuit to assess pumps' performances over 6 circulation hours using human blood. CPB induced a significant elevation of all the tested markers. Neither in the in vivo nor in the in vitro study were significant differences observed between the groups. Because the Revolution centrifugal pump, which was recently designed and distributed, produced results comparable with those obtained with the BioPump, it should be considered as safe as the Bio-Pump to perform clinical CPB.
authors.affiliation: Division of Cardiac Surgery, Dipartimento di Emergenza e Trapianti di Organo, University of Bari, Piazza Giulio Cesare 11, 70100 Bari, Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: Paparella
authors.forename: Antonella
authors.initials: A
authors.lastname: Galeone
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Venneri
authors.forename: Maria
authors.initials: M
authors.lastname: Coviello
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Visicchio
authors.forename: Giangiuseppe
authors.initials: G
authors.lastname: Cappabianca
authors.forename: Giorgia
authors.initials: G
authors.lastname: Maselli
authors.forename: Nicola
authors.initials: N
authors.lastname: Marraudino
authors.forename: Michele
authors.initials: M
authors.lastname: Quaranta
authors.forename: Luigi
authors.initials: L
authors.lastname: De Luca Tupputi Schinosa
mesh_terms: D000368:Aged; D001769:Blood; D001777:Blood Coagulation / Q000502:physiology; D002315:Cardiopulmonary Bypass / Q000295:instrumentation*; D005260:Female; D006355:Heart-Lung Machine / Q000009:adverse effects; D006454:Hemoglobins / Q000032:analysis; D006461:Hemolysis / Q000502:physiology*; D006801:Humans; D008297:Male; D026901:Membrane Transport Proteins / Q000009:adverse effects*; D019007:P-Selectin / Q000097:blood; D010446:Peptide Fragments / Q000097:blood; D010978:Platelet Factor 4 / Q000032:analysis; D011516:Prothrombin
chemical_list: D006454:Hemoglobins; D026901:Membrane Transport Proteins; D019007:P-Selectin; D010446:Peptide Fragments; C045879:prothrombin fragment 1.2; D010978:Platelet Factor 4; D011516:Prothrombin