The size and collapsability of the IVC is often used in echo to determine RAP. This week we will review what to do if the IVC is not well visualized.

Describe the conventional two-dimensional acoustic windows required for optimal evaluation of the right heart. Describetheechocardiographicparametersrequiredinroutineanddirectedechocar-diographic studies, and the views to obtain these parameters for assessing right ventricle (RV) size and function.

The IVC helps to determine central venous pressure and central venous pressure is synonymous with RAP. The Collapsibility Index is the relationship between the diameter of the IVC and the percent collapse of the IVC during inspiration.

2021年8月6日 · To recognize factors other than right atrial pressure (RAP) that may influence inferior vena cava (IVC) measurements is critical. Significant tricuspid regurgitation, larger body surface area, and younger age are associated with the IVC distension. In contrast, IVC collapsibility index is influenced only by RAP.

2022年9月20日 · Inferior vena cava (IVC) size and collapsibility (IVC dynamics) are used for estimating right atrial pressure (RAP). However, the diagnostic performance of the American Society of Echocardiography IVC criteria for estimating RAP in patients with congenital heart disease are unknown.

2025年2月24日 · IVC’s diameter has been classically correlated with right atrial pressure (RAP). The classical teaching of IVC ultrasonography is simplified and summarized in the table below, thanks to the work of the American Society of Echocardiography. 10

2024年1月5日 · HOW TO ESTIMATE RIGHT ATRIAL PRESSURE (RAP) As noted in the above table, the two components required to estimated RAP with echocardiography include assessing both the size and collapsibility of the IVC. Once you have established if these values are normal or abnormal, you can accurately calculate the estimated RAP. IVC Tips:

Knowledge of the right atrial pressure (RAP) values is critical to ascertain the existence of a state of hemodynamic congestion, irrespective of the possible presence of signs and symptoms of clinical congestion and cardiac overload that can be lacking in some conditions of concealed or clinically misleading cardiac decompensation.

We propose novel methods, based on semi-automated edge-tracking of IVC size and cardiac collapsibility (cardiac caval index—CCI), tested in a monocentric retrospective cohort of patients undergoing echocardiography and right heart catheterization (RHC) within 24 h in condition of clinical and therapeutic stability (170 patients, age 64 ± 14, mal...

Estimation of right atrial pressure (RAP) using echocardiographic measurement of the inferior vena caval (IVC) size along with its respirophasic variation is commonly performed despite the paucity of data that critically evaluates this technique. In this …