WordNet

the 5th letter of the Roman alphabet (同)e

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/07 01:59:33」(JST)

wiki en

In cardiovascular physiology, end-diastolic volume (EDV) is the volume of blood in the right and/or left ventricle at end load or filling in (diastole) or the amount of blood in the ventricles just before systole. Because greater EDVs cause greater distention of the ventricle, 'EDV is often used synonymously with preload, which refers to the length of the sarcomeres in cardiac muscle prior to contraction (systole). An increase in EDV increases the preload on the heart and, through the Frank-Starling mechanism of the heart, increases the amount of blood ejected from the ventricle during systole (stroke volume).

Parameters affecting EDV

Because nearly two-thirds of the blood in the systemic circulation is stored in the venous system, end-diastolic volume is closely related to venous compliance.

Increasing venous compliance elevates the capacitance of the veins, reducing venous return and therefore end-diastolic volume.

Decreasing venous compliance has the opposite effect. For example, activation of the baroreceptor reflex (occurring, for instance, in acute hemorrhage) causes vasoconstriction, which decreases venous compliance, improves venous return, and therefore increases end-diastolic volume.

Sample values

The values below are for the left ventricle:

Measure view talk edit	Typical value	Normal range
end-diastolic volume (EDV)	120 mL^[1]^{[non-primary source needed]}	65–240 mL^[1]^{[non-primary source needed]}
end-systolic volume (ESV)	50 mL^[1]^{[non-primary source needed]}	16–143 mL^[1]^{[non-primary source needed]}
stroke volume (SV)	70 mL	55–100 mL
ejection fraction (E_f)	58%	55–70%^[2]
heart rate (HR)	75 bpm	60–100 bpm^[3]
cardiac output (CO)	5.25 L/minute	4.0–8.0 L/min^[4]

The right ventricular end-diastolic volume (RVEDV) ranges between 100 and 160 mL.^[4] The right ventricular end-diastolic volume index (RVEDVI) is calculated by RVEDV/BSA and ranges between 60 and 100 mL/m².^[4]

References

^ ^a ^b ^c ^d Schlosser, Thomas; Pagonidis, Konstantin; Herborn, Christoph U.; Hunold, Peter; Waltering, Kai-Uwe; Lauenstein, Thomas C.; Barkhausen, Jörg (2005). "Assessment of Left Ventricular Parameters Using 16-MDCT and New Software for Endocardial and Epicardial Border Delineation". Am J Roentgenol 184 (3): 765–73. doi:10.2214/ajr.184.3.01840765. PMID 15728595. Values:
- End-diastolic volume (left ventricular) – average 118 and a range of 68 – 239mL and
- End-systolic volume (left ventricular) – average 50.1 and range, 16 – 143 mL:
- Also, ejection fraction was estimated in this study to be average 59.9% ± 14.4%; range, 18 – 76%, but secondary source (see above) is used in this article instead.
^ O'Connor, Simon (2009). Examination Medicine (The Examination). Edinburgh: Churchill Livingstone. p. 41. ISBN 0-7295-3911-3.
^ Normal ranges for heart rate are among the narrowest limits between bradycardia and tachycardia. See the Bradycardia and Tachycardia articles for more detailed limits.
^ ^a ^b ^c Edwards Lifesciences LLC > Normal Hemodynamic Parameters – Adult 2009

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 頚動脈狭窄の評価 evaluation of carotid artery stenosis
2. 拡張期心不全の病態生理 pathophysiology of diastolic heart failure
3. 心筋症の心エコーによる認識 echocardiographic recognition of cardiomyopathies

English Journal

Acute and Subacute Effects of EV Iron Sucrose on Endothelial Functions in Hemodialysis Patients.

Ozkurt S, Ozenc F, Degirmenci NA, Temiz G, Musmul A, Sahin G, Yalcin AU.SourceDepartment of Nephrology, ESOGU Faculty of Medicine , Eskisehir , Turkey.
Renal failure.Ren Fail.2012;34(1):1-6. Epub 2011 Oct 21.
Background: Iron support is an important component of treatment of anemia in hemodialysis (HD) patients. However, there are concerns about endovenous (EV) iron therapy that may cause endothelial dysfunction (ED) by increasing oxidative stress (OS) and lead to cardiovascular events. In this study, we
PMID 22017464

Quantification of left and right ventricular kinetic energy using four dimensional intracardiac magnetic resonance imaging flow measurements.

Carlsson M, Heiberg E, Toger J, Arheden H.Source1Department of Clinical Physiology.
American journal of physiology. Heart and circulatory physiology.Am J Physiol Heart Circ Physiol.2011 Dec 16. [Epub ahead of print]
We aimed to quantify kinetic energy (KE) during the entire cardiac cycle of the left ventricle (LV) and right ventricle (RV) using 4D phase contrast (PC) magnetic resonance imaging (MRI). KE was quantified in healthy volunteers (n=9) using an in-house developed software. Mean KE through the cardiac
PMID 22180653

Japanese Journal

Combined Assessment of Myocardial Perfusion and Function by ECG-Gated Myocardial Perfusion Single-Photon Emission Computed Tomography for the Prediction of Future Cardiac Events in Patients With Type 2 Diabetes Mellitus

KATO Masahiko,MATSUMOTO Naoya,NAKANO Yoshimochi,SUZUKI Yasuyuki,YODA Shunichi,SATO Yuichi,KASAMA Shu,NAGAO Ken,HIRAYAMA Atsushi
Circulation journal : official journal of the Japanese Circulation Society 75(2), 376-382, 2011-01-25
… Summed stress score (SSS), summed difference score (SDS), poststress ejection fraction (EF) and resting end-diastolic volume (EDV) were calculated. … P<0.001), resting EDV (Wald 53.8; …
NAID 10027427099

緊急災害救援ユニットEDV-01の開発

藤本剛嘉
燃料電池 10(4), 97-100,図巻頭1p, 2011
NAID 40018844683

Related Pictures

edv-service-weber EDV Service undSchulungen EDV & IT - nicht mehr weg zu denken. Sachbearbeiter EDV MT EDV Dienstleistungen Augsburg Edv Edv

★リンクテーブル★

リンク元	「駆出率」「拡張末期容積」「拡張終期容積」「end-diastolic volume」「左室拡張終期容量」
拡張検索	「LVEDV」「EDVI」
関連記事	「ED」「E」