WordNet

provide with an index; "index the book"
a numerical scale used to compare variables with one another or with some reference number
the finger next to the thumb (同)index_finger, forefinger
a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time (同)index_number, indicant, indicator
an alphabetical listing of names and topics along with page numbers where they are discussed
adjust through indexation; "The government indexes wages and prices"
list in an index
of or relating to the heart; "cardiac arrest"
the opening into the stomach and that part of the stomach connected to the esophagus
the act of classifying and providing an index in order to make items easier to retrieve

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(本・雑誌などの)『索引』;図書目録 / 指し示すもの,印 / (計器などの)指針 / 指数・虜 / 《the I-》(カトック教会の)禁所目録 / 〈本など〉‘に'索引をつける / 〈語など〉‘を'索引に載せる
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/01/25 01:08:33」(JST)

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Cardiac index (CI) is a vasodynamic parameter that relates the cardiac output (CO) to body surface area (BSA),^[1] thus relating heart performance to the size of the individual. The unit of measurement is litres per minute per square metre (l/min/m²).

Calculation

The index is usually calculated using the following formula:

where

CI=Cardiac index

BSA=Body surface area

SV=Stroke volume

HR=Heart rate

CO=Cardiac output

Clinical significance

The normal range of cardiac index in rest is 2.6 - 4.2 L/min per square meter.

It is frequently measured and used in intensive care medicine, and cardiac intensive care. It is a useful marker of how well the heart is functioning as a pump by directly correlating the volume of blood pumped by the heart with an individual's body surface area.

If the CI falls below 1.8 L/min/m², the patient may be in cardiogenic shock.

References

^ "Cardiac Catheterization: Cardiovascular Tests and Procedures: Merck Manual Professional". http://www.merck.com/mmpe/sec07/ch070/ch070b.html. Retrieved 2009-03-06.

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1. 肺動脈カテーテル法：トレーシングの解釈 pulmonary artery catheterization interpretation of tracings
2. 計算ツール：心拍出量 calculator cardiac output
3. 昇圧剤および強心剤の使用 use of vasopressors and inotropes
4. 高拍出性心不全 high output heart failure
5. 敗血症性ショック：小児における迅速な覚知および初期蘇生 septic shock rapid recognition and initial resuscitation in children

English Journal

Clinical and haemodynamic correlates of heart rate turbulence as a non-invasive index of baroreflex sensitivity in chronic heart failure.

La Rovere MT, Maestri R, Pinna GD, Sleight P, Febo O.Source*Department of Cardiology, S. Maugeri Foundation, Scientific Institute of Montescano (IRCCS), Montescano, (Pavia), Italy.
Clinical science (London, England : 1979).Clin Sci (Lond).2011 Sep 1;121(6):279-84.
HRT (heart rate turbulence), describing the heart rate changes following a premature ventricular contraction, has been regarded as an indirect index of baroreflex function. However, limited data are available on its relationship with invasive assessment by phenylephrine injection (Phe-slope). In the
PMID 21526982

Depression and altered serum lipids in cynomolgus monkeys consuming a Western diet.

Chilton FH, Lee TC, Willard SL, Ivester P, Sergeant S, Register TC, Shively CA.SourceDepartment of Physiology and Pharmacology, Wake Forest University Health Sciences, Winston-Salem, NC 27157, United States; Department of Internal Medicine, Section on Molecular Medicine and Translational Science, Wake Forest University Health Sciences, Winston-Salem, NC 27157, United States.
Physiology & behavior.Physiol Behav.2011 Aug 3;104(2):222-7. Epub 2011 Jan 20.
Research over the past 15years has suggested a high comorbidity of depression and coronary heart disease (CHD). However the mechanisms responsible for this relationship are poorly understood. This study was designed to examine the relationships between depressive behaviors and concentrations of circ
PMID 21256145

Japanese Journal

Cardiac Magnetic Resonance Imaging-Derived Pulmonary Artery Distensibility Index Correlates With Pulmonary Artery Stiffness and Predicts Functional Capacity in Patients With Pulmonary Arterial Hypertension

KANG Ki-Woon,CHANG Hyuk-Jae,KIM Young-Jin,CHOI Byoung-Wook,LEE Hye Sun,YANG Woo-In,SHIM Chi-Young,HA Jongwon,CHUNG Namsik
Circulation journal : official journal of the Japanese Circulation Society 75(9), 2244-2251, 2011-08-25
NAID 10029339942

Novel Strain Rate Index of Contractility Loss Caused by Mechanical Dyssynchrony : A Predictor of Response to Cardiac Resynchronization Therapy

IWANO Hiroyuki,YAMADA Satoshi,WATANABE Masaya,MITSUYAMA Hirofumi,NISHINO Hisao,YOKOYAMA Shinobu,KAGA Sanae,NISHIDA Mutsumi,YOKOSHIKI Hisashi,ONOZUKA Hisao,MIKAMI Taisei,TSUTSUI Hiroyuki
Circulation journal : official journal of the Japanese Circulation Society 75(9), 2167-2175, 2011-08-25
NAID 10029339609

Effect on Limb Ischemic Preconditioning on Myocardial Injury in Patients Undergoing Mitral Valve Replacement Surgery : A Randomized Controlled Trial

WU Qingping,GUI Ping,WU Jing,DING Defang,PURUSRAM Gunsham,DONG Nianguo,YAO Shanglong
Circulation journal : official journal of the Japanese Circulation Society 75(8), 1885-1889, 2011-07-25
… Cardiopulmonary bypass (CPB) time, cross-clamp time, cardiac index, cumulative postoperative dosage of dobutamine, intensive care stay, postoperative hospital stay were not statistically different. … Plasma levels of cardiac troponin-I in the 3 groups significantly increased during CPB and peaked at 4h after surgery. …
NAID 10029127829

Usefulness of Respiratory Variation of Inferior Vena Cava Diameter for Estimation Elevated Central Venous Pressure in Children With Cardiovascular Disease

IWAMOTO Yoichi,TAMAI Akiko,KOHNO Kaduki,MASUTANI Satoshi,OKADA Naoko,SENZAKI Hideaki
Circulation journal : official journal of the Japanese Circulation Society 75(5), 1209-1214, 2011-04-25
… Background: The purpose of the present study was to determine the relationship of inferior vena cava diameter (IVCD) and its respirophasic variation (IVC collapsibility index: IVCCI) with central venous pressure (CVP), and thereby to provide reference cut-offs for such IVC parameters to estimate elevation in CVP in pediatric patients with cardiovascular disease. …
NAID 10028147796