JPH0271154A - Blood coagulating efficiency checking method by using whole blood - Google Patents

Blood coagulating efficiency checking method by using whole blood

Info

Publication number
JPH0271154A
JPH0271154A JP63223836A JP22383688A JPH0271154A JP H0271154 A JPH0271154 A JP H0271154A JP 63223836 A JP63223836 A JP 63223836A JP 22383688 A JP22383688 A JP 22383688A JP H0271154 A JPH0271154 A JP H0271154A
Authority
JP
Japan
Prior art keywords
blood
coagulation
agent
added
coagulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63223836A
Other languages
Japanese (ja)
Other versions
JP2746386B2 (en
Inventor
Shozo Koshikawa
越川 昭三
Tadao Akisawa
秋沢 忠男
Naoaki Kanamori
金森 直明
Takayuki Sugiyama
隆之 杉山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIMIZU SEIYAKU KK
Original Assignee
SHIMIZU SEIYAKU KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHIMIZU SEIYAKU KK filed Critical SHIMIZU SEIYAKU KK
Priority to JP63223836A priority Critical patent/JP2746386B2/en
Publication of JPH0271154A publication Critical patent/JPH0271154A/en
Application granted granted Critical
Publication of JP2746386B2 publication Critical patent/JP2746386B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • External Artificial Organs (AREA)

Abstract

PURPOSE:To check blood coagulating efficiency quickly by adding a coagulation starting agent to the whole blood added with an anti-coagulating agent and measuring the time for said blood to start coagulation. CONSTITUTION:An anti-coagulating agent is added to a whole blood. For example, a sodium citrate solution containing 3.8% sodium citrate or 3.12% sodium citrate, or potassium solution is used. The anti-coagulation agent is about 10 volume % of the total volume of the blood and anti-coagulation agent. Thereafter, the blood added with the anti-coagulation gent is added with a coagulation starting agent, e.g., a solution of free calcium donor of inorganic acid calcium salt such as calcium chloride. A glass tube containing the above blood and the agent is kept still for 30 seconds in a water bath at 37 deg.C. Then, the tube is taken out and inclined every 10 seconds until a coagulated mass of the blood is observed. The time for the coagulation is measured. Accordingly, coagulating efficiency can be checked quickly and in a simple manner.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は新規な全血を用いた血液凝固能検査法に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a novel method for testing blood coagulation ability using whole blood.

〔従来技術とその問題点〕[Prior art and its problems]

一般に血液凝固能が亢進して速く凝固する場合ではたと
えば手術後血栓をおこすおそれがあり又これが抑制され
、なかなか凝固しない場合は手術部位からの出血が長引
くおそれがありいずれも危険である。特に人工心肺等の
機械を用いて手術を行なう場合或は人工透析を行なう場
合等血液を体外の機械に流すいわゆる体外循環の場合血
液は凝固し易いので抗凝固剤たるヘパリンを血液に入れ
てその凝固を防いでいる。従って手術する前、透析する
前でヘパリンが投与されていない血液や手術中又は人工
透析中ヘパリンを入れて循環させている血液の凝固能を
はかってその測定値又はその変動をチエツクして例えば
もしヘパリン投与による凝固能抑制が期待以上の場合、
思わぬ出血のおそれがあるためヘパリンを硫酸プロタミ
ンで中和するなど所要の処置をとって、血液凝固能の抑
制又は亢進からもたらされるおそれのある危険を回避す
るようにしている。
In general, if blood coagulation ability is enhanced and coagulates quickly, there is a risk of, for example, thrombosis occurring after surgery, and if this is inhibited, if it does not coagulate easily, bleeding from the surgical site may be prolonged, both of which are dangerous. Particularly when performing surgery using a machine such as a heart-lung machine or when performing artificial dialysis, blood is easily coagulated in so-called extracorporeal circulation, such as when performing surgery or artificial dialysis. Blood tends to coagulate, so heparin, an anticoagulant, is added to the blood. Prevents coagulation. Therefore, before surgery or dialysis, the coagulation ability of blood to which heparin has not been administered, or blood that is circulating with heparin during surgery or artificial dialysis, is measured and the measured value or its fluctuation is checked. If the suppression of coagulation ability by heparin administration is greater than expected,
Since there is a risk of unexpected bleeding, necessary measures such as neutralizing heparin with protamine sulfate are taken to avoid the dangers that may result from suppression or enhancement of blood coagulation ability.

このように血液の凝固能が適正な値であるか否かを特に
手術時、人工透析時に検査することが必要でありこれを
検査する方法として種々のものがあるが、いくつかの問
題点があった。
In this way, it is necessary to test whether the blood coagulation ability is at an appropriate value, especially during surgery or artificial dialysis, and there are various methods for testing this, but there are some problems. there were.

たとえば全血を用いる検査法としては、リ−・ホワイト
(Lee−White )法、賦活凝固時間法、全血活
性化部分トロンボプラスチン時間があるが夫4次のよう
な問題点がある。
For example, testing methods using whole blood include the Lee-White method, the activated clotting time method, and the whole blood activated partial thromboplastin time, but these methods have the following problems.

(1)  Lee−White法、賦活凝固時間法は抗
凝固剤を用いないので、■採血後直ちに検査を実施しな
ければならないため、検査時期に融通性が無く、検査時
期を拘束される。■採血に時間がかかった場合検査値に
誤差を生ずる等の問題点があった。
(1) Since the Lee-White method and the activated clotting time method do not use anticoagulants, (1) the test must be performed immediately after blood collection, so there is no flexibility in the test timing, and the test timing is restricted. ■There were problems such as errors in test values if blood sampling took a long time.

(2)  全血活性化部分トロンボプラスチン時間は操
作が2段階となっており繁雑である。■測定操作におい
て時間の正確さが検査値に影響するため、熟練した技術
がない場合には誤差を生ずる等の問題があった。
(2) Whole blood activated partial thromboplastin time requires two steps and is complicated. ■Since the accuracy of time during measurement operations affects the test values, there are problems such as errors occurring in the absence of skilled techniques.

〔発明の目的及び概要〕[Purpose and outline of the invention]

本発明はかかる問題点を解決して血液凝固能を迅速、簡
便に検査する方法を提供することを目的とするものであ
り、本発明者らの研究、実験によれば、抗凝固剤を加え
た全血に、凝固開始剤を添加し、凝固を形成するまでの
時間を測定することによってかかる目的が達成しうろこ
とが見出されたのである。
The purpose of the present invention is to solve these problems and provide a method for quickly and easily testing blood coagulation ability. It was discovered that this objective could be achieved by adding a coagulation initiator to whole blood and measuring the time until clot formation.

〔発明の詳細な説明〕 本発明を以下詳細に説明する。[Detailed description of the invention] The present invention will be explained in detail below.

まず全血に抗凝固剤を加える。通常用いられる公知の抗
凝固剤がここでも用いられる。たとえば、3.8%クエ
ン酸ナトリウム、3.12%クエン酸ナトリウム等の濃
度のクエン酸ナトリウム又はカリウムの水溶液、適当な
濃度のシュウ酸ナトリウム又はカリウム塩、エチレンジ
アミンテトラ酢酸(EDTA)の塩類又はその溶液等を
挙げることができる。たとえば、全血+抗凝固剤の合計
量の約10容量%の量の抗凝固剤が用いられる。これは
採血時に用いられる。
First, an anticoagulant is added to whole blood. Commonly used known anticoagulants can be used here as well. For example, aqueous solutions of sodium or potassium citrate with concentrations such as 3.8% sodium citrate, 3.12% sodium citrate, sodium or potassium oxalate salts with appropriate concentrations, salts of ethylenediaminetetraacetic acid (EDTA), or the like. Solutions and the like can be mentioned. For example, an amount of anticoagulant is used that is approximately 10% by volume of the total amount of whole blood + anticoagulant. This is used when drawing blood.

このように抗凝固剤が添加された全血に凝固開始剤を加
える。ここに用いられる凝固開始剤としては、塩化カル
シウム、臭化カルシウム、ヨウ化カルシウム等のハロゲ
ン化カルシウム、リン酸カルシウム、硫酸カルシウム、
硝酸カルシウム、重炭酸カルシウム等の無機酸カルシウ
ム塩、蟻酸、酢酸、プロピオン酸、酪酸等の脂肪酸のカ
ルシウム塩、アルギン酸、グルコン酸、乳酸、グリセリ
ン酸、グリセロリン酸等の有機酸のカルシウム塩等の遊
離カルシウム供与体の水溶液があげられる。
A coagulation initiator is added to the whole blood to which the anticoagulant has been added. The coagulation initiator used here includes calcium halides such as calcium chloride, calcium bromide, and calcium iodide, calcium phosphate, calcium sulfate,
Release of calcium salts of inorganic acids such as calcium nitrate and calcium bicarbonate, calcium salts of fatty acids such as formic acid, acetic acid, propionic acid, and butyric acid, and calcium salts of organic acids such as alginic acid, gluconic acid, lactic acid, glyceric acid, and glycerophosphoric acid. Examples include aqueous solutions of calcium donors.

凝固開始剤としては、この外活性化血液凝固第■因子(
IXa)、活性化血液凝固第X因子(Xa)、活性化血
液凝固節XI因子(XIa)等も合わせて用いることが
できる。
As a coagulation initiator, this extra-activated blood coagulation factor (
IXa), activated blood coagulation factor X (Xa), activated blood coagulation factor XI (XIa), etc. can also be used together.

このようにして凝固開始剤としてこれらの活性化因子を
併用するときは凝固塊の形成をより明瞭に測定すること
ができる。この中では塩化カルシウムの水溶液と活性化
血液凝固第X因子とを組合わせ用いるのが好ましい。
In this way, when these activators are used together as coagulation initiators, the formation of clots can be measured more clearly. Among these, it is preferable to use a combination of an aqueous solution of calcium chloride and activated blood coagulation factor X.

血液凝固開始剤の添加は採血直後でもよ(、又氷冷に保
存しておけば後で添加して任意の時期に検査を開始する
ことも可能である。
The blood coagulation initiator can be added immediately after blood collection (or, if stored on ice, it can be added later and the test can be started at any time).

検査は抗凝固剤を加えた全血に凝固開始剤を加えて測定
を開始し、注入されたガラス試験管を37℃の水浴中に
30秒間静止した後10秒毎に取出してこれを傾斜させ
凝血塊が認められるまでの時間を計測する。ヘパリンネ
投与の正常者の場合100秒前後で凝固しQ、5U/m
lのヘパリン血中濃度の場合も9分前後で凝固し通常長
くとも15分以内で検査は終了する。
The test begins by adding a coagulation initiator to whole blood containing an anticoagulant, and then the injected glass test tube is placed in a water bath at 37°C for 30 seconds, then taken out every 10 seconds and tilted. Measure the time until a clot is recognized. In a normal person receiving heparinne, it solidifies in around 100 seconds, Q, 5U/m
Even if the heparin blood concentration is 1, the blood will clot in about 9 minutes, and the test will normally be completed within 15 minutes at the most.

〔実施例〕〔Example〕

実施例1 凝固開始剤(0,0625M塩化カルシウム、0.2U
/ml  Xa)0.2ml 血液(3,8%クエン酸ナトリウム1容+血液9容)1
ml をガラス試験管に注入しn1定を開始させ、30秒間3
7℃の水浴中に静止した後10秒毎に試験管を傾斜させ
凝血塊が認められるまでの時間を計測する。
Example 1 Coagulation initiator (0,0625M calcium chloride, 0.2U
/ml Xa) 0.2ml Blood (1 volume of 3.8% sodium citrate + 9 volumes of blood) 1
ml into a glass test tube to start n1 constant, and hold for 30 seconds.
After resting in a water bath at 7°C, the test tube is tilted every 10 seconds and the time until a clot is observed is measured.

ヘパリンネ投与の正常者32名について検査を実施した
ときの測定値分布を表に示す。これをグラフに示せば第
1図のとおりである。はぼ70〜180秒の範囲であり
、その中90%は80〜凝固時間(秒) 例数 凝固時
間(秒) 例数計32 105.0(秒)±22.6(秒) (平均値上標準偏差) 〔効 果〕 このように本発明によるときは、採血時に抗凝固剤を用
いるため、採血後検体を保存し後で任意の時期に凝固開
始剤を添加して検査を開始することも可能であり、検査
時間を任意に選択することができる。又採血に時間を要
する時も抗凝固剤の添加により血液凝固の開始が防止さ
れているため検査面に影響を与えることはなく誤差が生
じにくい。
The table shows the distribution of measured values when testing was carried out on 32 normal subjects administered heparinne. This is shown in a graph as shown in Figure 1. 90% of them are in the range of 70 to 180 seconds, and 90% of them are 80 to clotting time (seconds) Number of cases Clotting time (seconds) Total number of cases 32 105.0 (seconds) ± 22.6 (seconds) (Average value (Upper standard deviation) [Effect] As described above, according to the present invention, since an anticoagulant is used during blood collection, the sample can be stored after blood collection, and a coagulation initiator can be added at any time later to start the test. is also possible, and the inspection time can be arbitrarily selected. Furthermore, even when it takes time to collect blood, the addition of an anticoagulant prevents the start of blood coagulation, so it does not affect the test surface and errors are less likely to occur.

又一般的に抗凝固剤を用いるときは血漿分離等の試験操
作を行なう等煩雑な操作を必要とし簡便に血液凝固能の
411定ができなかったが、本発明では血漿分離等の繁
雑な操作を省き全血に凝固開始剤を添加することによっ
て簡便に血液凝固能をa1定することができるようにな
った。更に従来の方法では10分以上の時間を必要とし
たが本発明のときは通常数分間で終了でき迅速に検査す
ることができる。
In addition, generally when using an anticoagulant, complicated operations such as plasma separation are required, making it impossible to easily determine blood coagulation ability.However, in the present invention, complicated operations such as plasma separation are required. Blood coagulation ability can now be easily determined by adding a coagulation initiator to whole blood. Furthermore, while the conventional method required 10 minutes or more, the present invention can usually be completed in a few minutes, allowing for rapid testing.

尚本発明は全血を用いた血液凝固能検査法に関するが、
例えばヘパリン等の抗凝固剤を投与された患者の血液に
ついても検査が可能となる。
Although the present invention relates to a blood coagulation ability testing method using whole blood,
For example, it is also possible to test the blood of patients who have been administered anticoagulants such as heparin.

【図面の簡単な説明】[Brief explanation of the drawing]

図面第1図は本発明の方法の一実施例の測定結果を示す
グラフである。
FIG. 1 is a graph showing the measurement results of an embodiment of the method of the present invention.

Claims (1)

【特許請求の範囲】[Claims] 抗凝固剤を加えた全血に凝固開始剤を添加し、凝固を形
成するまでの時間を測定することを特徴とする、全血を
用いた血液凝固能検査法。
A blood coagulation ability testing method using whole blood, which is characterized by adding a coagulation initiator to whole blood containing an anticoagulant and measuring the time until clot formation.
JP63223836A 1988-09-07 1988-09-07 Blood coagulation test using whole blood Expired - Fee Related JP2746386B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63223836A JP2746386B2 (en) 1988-09-07 1988-09-07 Blood coagulation test using whole blood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63223836A JP2746386B2 (en) 1988-09-07 1988-09-07 Blood coagulation test using whole blood

Publications (2)

Publication Number Publication Date
JPH0271154A true JPH0271154A (en) 1990-03-09
JP2746386B2 JP2746386B2 (en) 1998-05-06

Family

ID=16804482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63223836A Expired - Fee Related JP2746386B2 (en) 1988-09-07 1988-09-07 Blood coagulation test using whole blood

Country Status (1)

Country Link
JP (1) JP2746386B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007218279A (en) * 2006-02-14 2007-08-30 Hioki Ee Corp Displacement magnifying mechanism with displacement final output end and processing apparatus provided with the displacement magnifying mechanism
US20150240287A1 (en) * 2012-09-28 2015-08-27 Chugai Seiyaku Kabushiki Kaisha Method for evaluating blood coagulation reaction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60115519A (en) * 1983-11-28 1985-06-22 Sekisui Chem Co Ltd Promotor for blood clotting
JPS6122255A (en) * 1983-01-26 1986-01-30 ユニバ−シテイ− オブ メデイシン アンド デンテイストリ− オブ ニユ−ジヤ−ジ Hematological predicting and inspection method of septicemiaand other symptom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122255A (en) * 1983-01-26 1986-01-30 ユニバ−シテイ− オブ メデイシン アンド デンテイストリ− オブ ニユ−ジヤ−ジ Hematological predicting and inspection method of septicemiaand other symptom
JPS60115519A (en) * 1983-11-28 1985-06-22 Sekisui Chem Co Ltd Promotor for blood clotting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007218279A (en) * 2006-02-14 2007-08-30 Hioki Ee Corp Displacement magnifying mechanism with displacement final output end and processing apparatus provided with the displacement magnifying mechanism
US20150240287A1 (en) * 2012-09-28 2015-08-27 Chugai Seiyaku Kabushiki Kaisha Method for evaluating blood coagulation reaction

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Publication number Publication date
JP2746386B2 (en) 1998-05-06

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