Prognostic Value of Right Ventricular-pulmonary Arterial Coupling Assessed by Echocardiography in Septic Patients

Sepsis and septic shock are common clinical conditions, representing a significant healthcare challenge due to their high mortality rates and increasing incidence. Sepsis-induced cardiomyopathy is a frequent complication, occurring in up to 44% of septic patients. This condition is associated with a two- to three-fold increase in mortality. Although sepsis-induced cardiomyopathy is typically diagnosed via echocardiography to assess left ventricular systolic function, both ventricles may be affected. Several studies have demonstrated that right ventricular dysfunction (RVD)/ right ventricular failure (RVF) was prevalent in sepsis and septic shock, with significant implications for prognosis and mortality. The right ventricle (RV) has a distinct anatomical structure and function compared to the left ventricle, characterized by its high sensitivity to afterload variations. Even minor increases in afterload can severely impair RV contractile function. Meanwhile, septic patients often experience hypoxemic respiratory failure and require mechanical ventilation. This condition generates hypoxia-induced pulmonary vasoconstriction, which, combined with positive pressure ventilation, leads to increased pulmonary vascular resistance and elevated pulmonary arterial pressure. Additionally, systemic vasodilation reduces RV preload, while septic shock and vasopressor use further compromise right coronary perfusion, exacerbating RV contractile dysfunction. Consequently, simultaneous assessm…

This description comes directly from the study's public registry record.

Anh-Minh V Phan, MSc.  ·  +84907216232  ·  minh.pva@umc.edu.vn

Khoi M Le, A/Prof. Dr.  ·  +84919731386  ·  khoi.lm@umc.edu.vn

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