AI Article Synopsis

  • The study aimed to evaluate whether using a dialyzer-based cell salvage system (DBCS) during off-pump coronary artery bypass grafting (OPCABG) could decrease the need for homologous blood transfusions and improve postoperative recovery.
  • Results showed that patients with significant blood loss who used DBCS required less homologous blood transfusion compared to those without any cell salvage, and they experienced fewer complications including renal dysfunction and need for non-invasive ventilation.
  • Overall, patients in the DBCS group had shorter hospital stays without any increase in bleeding issues, suggesting that DBCS is a beneficial technique in improving outcomes for OPCABG.

Article Abstract

Objectives: Our goal was to test the hypothesis that the use of a dialyzer-based cell salvage system during off-pump coronary artery bypass grafting (OPCABG) reduces requirements for homologous blood transfusions (HBT) and improves postoperative haemtochemical parameters.

Methods: Data were prospectively collected for 222 patients who had OPCABG using 3 different cell salvage techniques: (1) dialyzer-based cell salvage (DBCS) ( n  = 75), (2) conventional cell salvage (CCS) ( n  = 73) and (3) without cell salvage (WCS) ( n  = 74). Salvaged blood was transfused at the end of the operation. The primary outcome of the study was the amount of homologous blood transfused. Secondary outcomes were changes in haemtochemical parameters, postoperative bleeding, need for non-invasive ventilation (NIV), postoperative complications, renal dysfunction, clotting derangement, duration of intensive care unit (ICU) and hospital stay and mortality rates.

Results: There were no deaths. In patients with >1000 ml blood loss, there was a significant reduction in HBT in the DBCS group (300 ± 161 ml) compared with the WCS group (550 ± 85 ml) ( P  <   0.0001). Postoperative changes in haemtochemical parameters were significantly fewer in the DBCS group compared with the other 2 groups. The incidence of NIV ( P  =   0.002), renal dysfunction ( P  =   0.009) and postoperative complications ( P  =   0.003) was least in the DBCS group and highest in the WCS group. Mean ICU stays were comparable ( P  =   0.208); however, the mean hospital stay was significantly shorter in the DBCS group (6.08 ± 3.12 days) compared with the WCS group (7.54 ± 4.46 days) ( P  =   0.022). There was no significant increase in coagulopathy in any group as suggested by comparable chest tube drainage ( P  =   0.285) and comparable prothrombin time.

Conclusions: The use of the DBCS system in OPCABG resulted in a significant reduction in HBT, improvement in postoperative levels of haemoglobin, platelets and albumin and reduction in complications without increased risk of coagulopathy.

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http://dx.doi.org/10.1093/icvts/ivw371DOI Listing

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