Relationship of the diaphragm to the inferior vena cava in human embryos and fetuses. Does inferior vena cava size predict right atrial pressures in patients receiving mechanical ventilation? J Am Soc Echocardiogr. Sonospirometry: a new method for noninvasive estimation of mean right atrial pressure based on two-dimensional echographic measurements of the inferior vena cava during measured inspiration. Recommendations for Noninvasive Evaluation of Native Valvular Regurgitation: A Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance. Anatomy, abdomen and pelvis, inferior vena cava. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. 2013 ACCF/AHA guideline for the management of heart failure: executive summary: a report of the American College of Cardiology Foundation/American Heart Association Task Force on practice guidelines. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure: The Task Force for the diagnosis and treatment of acute and chronic heart failure of the European Society of Cardiology (ESC) Developed with the special contribution of the Heart Failure Association (HFA) of the ESC. It might be better to measure IVCD using a method that avoids the diaphragm to accurately estimate RAP. The high-echo structure pushing the IVC from the back is the diaphragm in most patients. The sensitivity of IVCD to predict RAP ≥ 10 mmHg (IVCDmax > 21 mm, IVCCI < 50%) increased from 31.3% to 68.8% with our method. In those patients, when IVCs were measured in a way that avoided the diaphragm, IVCDmax diameter was larger and IVC collapsibility index (IVCCI) tended to be smaller than those when IVCDs were measured according to the guideline methods. ResultsĬT scans revealed that the diaphragm, not the vertebra, was located just behind the IVC in most patients. We reviewed computed tomography (CT) scans and analyzed the relation between RAP and IVCD measured by echocardiography not only in the way recommended in the guidelines, but also in a way that avoided the structure. We retrospectively studied 116 patients who underwent right-heart catheterization. The aim of this study was to identify the structure behind the IVC and to evaluate its influence on RAP. However, right atrial pressure (RAP) is underestimated in some patients who have a small IVC diameter (IVCD) because of a high-echo structure compressing the IVC from the back at that portion. © 2011 Wiley Periodicals, Inc.It is recommended in current guidelines that the inferior vena cava (IVC) diameter should be measured at 1.0–2.0 cm from the junction with the right atrium. Adult and pediatric intensivists should pay attention to the risk of false measurement of the inferior vena cava anterior‐posterior diameter that may be due to compression of the inferior vena cava by the sonographic probe when the subxiphoid view is used. Transthoracic echocardiography yielded lower inferior vena cava diameter values than transesophageal echocardiography. We sought to compare the inferior vena cava diameter measured by transthoracic echocardiography and by transesophageal echocardiography in human and animals. Siegenthaler, Nils Giraud, Raphael Muller, Hayo Bendjelid, Karim Demonstration of inferior vena cava compression by probe pressure during subxiphoid echocardiography Demonstration of inferior vena cava compression by probe pressure during subxiphoid echocardiography
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