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The Impact of B-type natriuretic peptide (BNP) on Transplanted Liver Hemodynamics and Short-Term Prognosis: A Single-Center Big Data Retrospective Study
Received date: 2024-12-14
Revised date: 2024-10-15
Accepted date: 2025-02-04
Online published: 2025-07-06
Objective: This study investigates the correlation between early B-type natriuretic peptide (BNP) levels and ultrasound hemodynamics following liver transplantation, with the aim of evaluating short-term prognosis.
Methods: We analyzed data from 924 patients who underwent liver transplantation between December 2012 and October 2022. Ustilizing the clinical liver transplantation ultrasound imaging database software V1.0 developed by Tianjin First Central Hospital, we recorded various ultrasonic dynamic parameters, including peak systolic velocity (PSV), end-diastolic velocity (EDV), peak systolic/diastolic flow velocity (S/D), resistance index (RI), pulsatility index (PI), and portal vein velocity (PVV). Additionally, BNP values were recorded within 24 hours post-surgery. We analyzed the correlation between ultrasound blood flow parameters and BNP levels. Patients were categorized into death and survival groups based on their prognosis at 3 months, and differences in blood flow parameters were compared between these groups. Furthermore, short-term prognosis was assessed based on blood flow parameters associated with diastolic blood flow.
Results: Negative correlations were observed between BNP and the resistance index (RI) and pulsatility index (PI) on the first day after surgery (r = -0.473, r = -0.602, both P < 0.05). Similar correlations were found on the fifth day post-surgery (r = -0.406, r = -0.518, both P < 0.05). Additionally, peak systolic velocity (PSV), end diastolic velocity (EDV), and BNP levels were significantly higher in the death group compared to the survival group on both the first and fifth days after surgery (all P < 0.05), while RI and PI were lower in the death group (both P < 0.05). The systolic/diastolic (S/D) ratio in the death group was also lower than that in the survival group on the first and fifth days post-surgery (both P = 0.001). Furthermore, the presence of early diastolic blood flow after surgery was not associated with short-term prognosis in either group (both P > 0.05).
Conclusion: Early BNP levels correlate with ultrasound blood flow parameters following liver transplantation, providing a foundation for evaluating cirrhotic cardiomyopathy. Patients with a poor short-term prognosis exhibit elevated BNP levels, altered dynamic circulation, and low-resistance blood flow
Key words： Ultrasonic imaging; BNP; Liver transplantation; Hemodynamics
Yu Huimin , Tang Ying , Niu Ningning , Wu Hongtao , Zhang Guoying , Wang Mingyang , Hao Xiaoye , Liu Jing . The Impact of B-type natriuretic peptide (BNP) on Transplanted Liver Hemodynamics and Short-Term Prognosis: A Single-Center Big Data Retrospective Study[J]. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY, 2025 , 9(2) : 189 -196 . DOI: 10.37015/AUDT.2025.240031
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