J Card Fail. 2021 Aug 19:S1071-9164(21)00346-8. doi: 10.1016/j.cardfail.2021.08.009. Online ahead of print.
INTRODUCTION: Limited data are available on the use of internal jugular vein (IJV) ultrasound parameters to assess central venous pressure (CVP) and clinical outcomes among patients with suspected or confirmed heart failure (HF).
METHODS: We performed electronic searches on PubMed, The Cochrane Library, EMBASE, EBSCO, Web of Science and CINAHL databases from the inception through January 9, 2021 to identify studies evaluating the accuracy and reliability of the IJV ultrasound parameters and exploring its correlation with CVP and clinical outcomes in adult patients with suspected or confirmed acutely decompensated HF (ADHF). The studies' report quality was assessed by Quality Assessment of Diagnostic Accuracy Studies (QUADAS)-2 scale.
RESULTS: A total of eleven studies were eligible for final analysis (n=1,481 HF patients). The studies were segregated into three groups - 1) the evaluation of patients presenting to the emergency department (ED) with dyspnea; 2) the evaluation of patients presenting to the HF clinic for follow-up, and 3) the evaluation of hospitalized patients with ADHF or undergoing right heart catheterization. US parameters included: IJV height, IJV diameter, IJV diameter ratio, IJV cross-sectional area; respiratory compressibility index (CI), and compression CI.
CONCLUSIONS: The findings of this systematic review suggest a significant role for ultrasound interrogation of the IJV in evaluation of patients in the ED presenting with dyspnea, in the outpatient clinic for poor clinical outcomes in HF, and in determining the timing of discharge for patients admitted with ADHF. Further studies are warranted for testing the reliability of the reported ultrasound indices.