Version 2.80

Description

Cardiac valve area can be measured (orifice area) or indirectly calculated (effective orifice area). Direct measurement can be done on echo, and calculations are based on other measurements such as blood flow volume and velocity. [DICOM] The effective orifice area is calculated based on the equation F=A×V, where F is flow, A is area and V is velocity. The velocity is measured directly with Doppler echo and indirectly during cardiac catheterization based on the Torricelli law from the transvalvular pressure gradient: V=√2gh, where g is the velocity of acceleration resulting from gravity and h is the pressure gradient. Therefore, for area as measured by cardiac catheterization, the formula is A=F/√2gh. PMID: 22547754 Source: Regenstrief LOINC , PMID: 22547754

Basic Part Properties

Part Name
Effective regurgitant orifice area
Part Display Name
Effective regurgitant orifice area
Part Type
Component (Describes the core component or analyte measured)
Created On
2008-11-07
Construct for LOINC Short Name
EROA

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP72534-8

Language Variants Get Info

Tag Language Translation
ru-RU Russian (Russian Federation) Эффективное регургитирующее отверстие
zh-CN Chinese (China) 有效反流口
Synonyms: 有效反流（回流、返流、回流性、反流性、逆流、反逆）口（孔、孔口、出口、瓣口）
it-IT Italian (Italy) Area orifizio rigurgitante effettivo
el-GR Greek (Greece) Επιφάνεια αποτελεσματικού στομίου παλινδρόμησης
Synonyms: Επιφάνεια αποτελεσματικού στομίου παλινδρόμησης