Blood protection of autologous platelet-rich plasma in long-time aortic root reconstruction: A retrospective study

Abstract

Objective

This study aimed to investigate the blood protective effect of autologous platelet-rich plasma in aortic root reconstruction under longtime cardiopulmonary bypass.

Method

Patients who underwent aortic root reconstruction between August 2018 and August 2022 were included and divided into experimental and control groups according to whether autologous platelet-rich plasmapheresis was used or not. The experimental group included 112 patients (90 males aged 39.00 [28.75–49.00] years), and the control group included 112 patients (90 males aged 37.00 [27.00–46.25] years). The clinical data for example EuroSCORE II cardiovascular surgery risk score, blood routine and other indicators were collected from the two groups.

Results

The transfusion volume of allogeneic red blood cells in the experimental group (52 cases without blood transfusion, 23 cases with 1–2 units, 15 cases with 3–4 units, and 22 cases with 5 units and above) was significantly lower than that in the control group (32 cases without transfusion, 34 cases with 1–2 units, 22 cases with 3–4 units, and 24 cases with 5 units or more) (Z = −2.06, p < 0.05). Resternotomy/thoracotomy occurred in 11 cases (9.8%) in the experimental group and 23 cases (20.5%) in the control group (RR = 2.37, 95% CI: 1.1–5.14, p < 0.05). The number of bleeding events in the experimental group (18 cases, 16.1%) was significantly less than that in the control group (33 cases, 29.5%) (RR = 2.18, 95% CI: 1.14–4.17, p < 0.05).

Conclusions

The application of autologous platelet-rich plasma in a long-time cardiopulmonary bypass aortic root reconstruction can reduce the amount of allogeneic blood transfusion and the occurrence of bleeding events, which is beneficial for blood protection.

Keywords

autologous blood transfusion aortic root reconstruction autologous platelet-rich plasma blood protection long-time cardiopulmonary bypass

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