IMAGING SCIENCE AND PHOTOCHEMISTRY ›› 2022, Vol. 40 ›› Issue (6): 1476-1480.DOI: 10.7517/issn.1674-0475.220818

• Review and Articles • Previous Articles     Next Articles

Value of Bedside Echocardiography Combined with Pcv-aCO2 in Predicting Volume Reactivity of Septic Shock

ZHANG Huaiwei1, SHAO Min2, SHAN Nanbing1, LI Binbin1   

  1. 1. Intensive Care Unit, Fuyang Fifth People's Hospital, Fuyang 236000, Anhui, P. R. China;
    2. Intensive Care Unit, The First Affiliated Hospital of Anhui Medical University, Hefei 230000, Anhuii, P. R. China
  • Received:2022-08-10 Online:2022-11-23 Published:2022-11-15

Abstract: This study investigated the predictive value of bedside echocardiography combined with central venous arterial blood carbon dioxide differential pressure (Pcv-aCO2) in the volume response of septic shock. A total of 110 patients with septic shock were selected as the study subjects. According to the change of cardiac index (ΔCI) before and after fluid infusion, they were divided into volume response group (n=66) and non-response group (n=44). The Pcv-aCO2 and respiratory variation index (RVI) of volume responsive patients were significantly lower than those of volume unresponsive patients (P<0.05), while the diameter of inferior vena cava (IVCD) was significantly higher than that of volume unresponsive patients (P<0.05). After rehydration, Pcv-aCO2 and RVI were negatively correlated with ΔCI (r=-0.432、-0.411,P<0.05). The area under the ROC curve of Pcv-aCO2, RVI, and their combination for predicting volume reactivity was 0.772, 0.709, and 0.819, respectively (P<0.05). Bedside echocardiography combined with Pcv-aCO2 has good application value in predicting the volume reactivity of septic shock.

Key words: bedside ultrasound, central venous arterial blood carbon dioxide differential pressure, septic shock, volumetric reactivity, predictive value