Estimation of central venous pressure by ultrasound

New Method for Noninvasive Quantification of Central Venous Pressure by Ultrasound

“…Even though there were some other noninvasive methods of CVP measurement, such as controlled compression sonography on the peripheral vein, 20,21 forearm volume plethysmography, 22,23 and neck inductive plethysmography, 24 they relied on additional instruments that are not readily available in routine clinical practice. By contrast, the instruments that we use in the new method of quantification of CVP are just a ruler and a pencil besides a portable ultrasound machine, which is widely available.…”

Diagnostic accuracy of a simple ultrasound measurement to estimate central venous pressure in spontaneously breathing, critically ill patients

“…A literature search found 1 letter to the editor suggesting that real-time ultrasound imaging of the internal jugular vein could be used to qualitatively determine jugular venous pressure 18 and 3 studies using ultrasound in conjunction with a pressure transducer or manometer to determine the pressure needed to collapse the vein (either the internal jugular or a peripheral vein), with subsequent correlation to CVP. [19][20][21] These latter techniques appear to be cumbersome and require custom equipment that is not readily available in most hospitals.…”

Non-invasive central venous pressure measurement by compression ultrasound—A step into real life

“…Several studies employing invasive and non invasive techniques showed a good correlation between peripheral venous pressure and CVP under a variety of study conditions in the operating room and the intensive care unit. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Basis for these studies is the fact, that in supine position pressure values within the cephalic, basilic and brachial veins are nearly identical to those of the superior vena cava. 4,5,19 Measurements of the inferior vena cava (IVC) diameter using ultrasound is frequently used to assess volume status of critically ill patients 20,21 , primarily distinguishing hypo-from iso-and hypervolemic conditions.…”