JP2002331031A - Appropriate blood transfusion support device, method and program - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a device for calculating a quantitative index for checking whether blood transfusion is performed or not. SOLUTION: The proper blood transfusion support device according to the present invention comprises:
A memory for storing circulating blood volume, a prediction probability calculation for obtaining a prediction probability of blood transfusion based on externally given data including at least the patient's weight, bleeding volume and surgical formula and a circulating blood volume read from the memory Unit, a prediction probability display generation unit that displays the prediction probability calculated by the prediction probability calculation unit, and a prediction probability determination that generates a reference display for determining the prediction probability based on a probability curve related to blood transfusion given in advance. A reference display generation unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an appropriate blood transfusion support apparatus, method, and program for automatically calculating a predicted probability of blood transfusion necessity and / or a blood transfusion volume.

[0002]

2. Description of the Related Art Conventionally, there is no quantitative criterion for determining whether or not to perform blood transfusion at the time of surgery, and it takes into account the operative procedure, preoperative biochemical data, intraoperative bleeding volume and the course of the patient. Blood transfusions were performed subjectively by doctors.

[0003]

However, in this conventional method, since the judgment is always on the safe side, blood transfusion has to be carried out to a blood vessel which does not require blood transfusion.
Increased transfusion opportunities go against the government's goal of curbing the use of blood products.

[0004] Furthermore, overuse of blood products for blood transfusion has led to waste of national health insurance.
There is a need for a quantitative guideline for determining whether or not to perform blood transfusion, and for an effective implementation system in the field.

[0005] The problem to be solved by the present invention is to provide an index which is used as a criterion for determining whether or not to perform blood transfusion during surgery.
Validity of whether or not to perform blood transfusion based on the relationship between preoperative Hb value, circulating blood volume, quantified ASA classification, operative method, use frequency of red blood cell preparation, and red blood cell usage It is an object of the present invention to provide a device for calculating in the form of a predicted probability for observing. It is another object of the present invention to provide a device for automatically calculating the amount of blood transfusion. The ultimate object of the present invention is to reduce wasteful use of blood products due to the lack of a quantitative index for checking whether blood transfusion is appropriate or not, and to suppress the use of blood products targeted by the government. It is to realize.

[0006]

According to the present invention, there is provided an appropriate blood transfusion support apparatus comprising: a memory for storing a circulating blood volume; externally provided data including at least a patient's weight, a bleeding volume, and a surgical procedure; A prediction probability calculation unit that calculates a prediction probability of blood transfusion based on the read circulating blood volume,
A prediction probability display generation unit that displays the prediction probability calculated by the prediction probability calculation unit; and a prediction probability determination reference display generation that generates a reference display for determining the prediction probability based on a probability curve related to blood transfusion given in advance. Unit.

[0007] Proper blood transfusion indicators during surgery require the measurement of Hb in the blood. In addition, Japan's blood transfusion therapy policy is being instructed to be appropriately implemented based on the relationship between supply and demand and infection. The apparatus according to the present invention can determine the start time of blood transfusion simply by filling in some preoperative patient conditions and the amount of bleeding, using the published equation of the predicted probability. According to the present invention, for example, a blood transfusion start time can be immediately determined in an operating room.

Preferably, the circulating blood volume of the memory can be set within a predetermined range.

Preferably, the prediction probability judgment reference display unit sets a judgment value for determining whether or not to perform blood transfusion based on the probability curve, and sets a boundary region in a range including the judgment value based on the probability curve. .

[0010] Preferably, the prediction probability display generation unit includes:
A bar graph representing the calculated prediction probability is generated, and the prediction probability determination reference display unit refers to the region including the region requiring blood transfusion, the region not requiring blood transfusion, and the boundary region in accordance with the bar graph of the prediction probability. A bar graph is generated, and the reference bar graph is displayed side by side near the bar graph indicating the predicted probability.

[0011] In order to be able to visually and easily understand the area where blood transfusion is unnecessary, the area where blood transfusion is required, and the boundary area,
The brightness, color, pattern, shape, etc. may be changed for each area. For example, the brightness may be increased (or decreased) for each region, green, yellow, and red for each region, or the thickness of the line may be changed.

When the predicted probability enters a region requiring a blood transfusion or a boundary region, the display may blink. Alternatively, a non-visual notification unit, for example, a sound notification unit using a buzzer or a vibration notification unit using a vibrator may be provided.

[0013] The proper blood transfusion support method according to the present invention comprises:
Setting a circulating blood volume, inputting data including at least the patient's weight, bleeding volume and surgical formula, and obtaining a prediction probability of blood transfusion based on the given data and the circulating blood volume, Displaying the calculated prediction probability, generating a reference display for determining the prediction probability based on a probability curve relating to blood transfusion given in advance, and displaying the reference display. .

A program according to the present invention comprises the steps of: setting a circulating blood volume in a computer;
Receiving data including at least a bleeding volume and an operation formula; obtaining a predicted transfusion probability based on the provided data and the circulating blood volume; displaying the calculated predicted probability; Generating a reference display for determining the predicted probability based on the probability curve relating to the blood transfusion, and displaying the reference display.

[0015] The proper blood transfusion support device according to the present invention comprises:
A memory for storing a circulating blood volume, a transfusion volume based on a patient's weight, a current blood hemoglobin value (current Hb value), a desired blood hemoglobin value (desired Hb value), and a circulating blood volume read from the memory And a transfusion amount display generator for displaying the calculated transfusion amount.

For example, the blood transfusion amount calculating section calculates the following MAP added RCC (mL) = (desired Hb value−current Hb
Value) × Predicted rise Hb value Predicted rise Hb value (g / dL) = administration Hb value (g) / circulating blood volume (dL) Circulating blood volume (dL) = body weight (kg) × 70 mL / kg /
The transfusion volume is calculated based on 100 administration Hb value = 30 g.

Preferably, the circulating blood volume of the memory can be set within a predetermined range.

Preferably, the apparatus further includes a blood transfusion pack number calculation unit for calculating the number of blood transfusion packs based on the calculated blood transfusion amount, and a blood transfusion pack number display generation unit for displaying the calculated blood transfusion pack number.

Preferably, the blood transfusion pack number calculation unit includes:
The number of blood transfusion packs is calculated based on a predetermined blood transfusion pack unit.

Preferably, one of the blood transfusion amount and the blood transfusion pack number is displayed.

The proper blood transfusion support method according to the present invention comprises:
Setting the circulating blood volume, inputting the patient's body weight, current blood hemoglobin value (current Hb value) and desired blood hemoglobin value (desired Hb value); Obtaining a blood transfusion amount based on the amount; displaying the calculated blood transfusion amount; calculating the blood transfusion pack number based on the calculated blood transfusion amount; and displaying the calculated blood transfusion pack number. Is provided.

A program according to the present invention comprises the steps of: setting a circulating blood volume in a computer;
Receiving a current blood hemoglobin value (current Hb value) and a desired blood hemoglobin value (desired Hb value); and obtaining a transfusion volume based on the provided data and the circulating blood volume. The step of displaying a transfusion amount, the step of calculating the number of transfusion packs based on the calculated transfusion amount, and the step of displaying the calculated number of transfusion packs are executed.

The program according to the present invention is stored, for example, on a recording medium. Media include, for example, flexible disks, hard disks, magnetic tapes, magneto-optical disks,
CD (including CD-ROM, Video-CD), DV
D (DVD-Video, DVD-ROM, DVD-R
AM), ROM cartridges, RAM memory cartridges with battery backup, flash memory cartridges, nonvolatile RAM cartridges, and the like.

The communication medium also includes a communication medium such as a wired communication medium such as a telephone line and a wireless communication medium such as a microwave line. The Internet is also included in the communication medium mentioned here.

A medium is a medium on which information (mainly digital data and programs) is recorded by some physical means, and which allows a processing device such as a computer or a dedicated processor to perform a predetermined function. You can do it.
In short, any method may be used as long as the program is downloaded to the computer by some means and a predetermined function is executed.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of the Invention FIG. 1 shows a block diagram of an apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a processing unit including a CPU, a memory, and the like;
Denotes a display unit such as a liquid crystal display device, and 3 denotes an input unit such as a key switch and a touch panel. A parameter is set or data is input from the input unit 3, and the processing unit 1
Performs the following processing, and displays the result on the display unit 2.
The processing unit 1 stores a memory 11 for storing the total circulating blood volume, a prediction probability calculating unit 12 for obtaining a prediction probability of blood transfusion based on data such as the total circulating blood volume and the weight of the patient, and performs display based on the calculated prediction probability. A prediction probability display generation unit 13, a memory 14 for storing a probability curve related to blood transfusion, and a prediction probability determination reference display generation unit 15 for generating a reference display for prediction probability determination based on the probability curve. Function block 1
Numerals 1 to 13 are for calculating a prediction probability, and function blocks 14 and 15 are for generating auxiliary information for determining the calculated prediction probability.

An apparatus / method according to an embodiment of the present invention comprises:
The prediction probability (P) for checking whether blood transfusion is appropriate or not is automatically calculated by sequentially inputting all parameters required for calculation.

The predicted probability (P) is calculated by subtotal gastrectomy for gastric cancer, semicolectomy for colon cancer, anterior resection for rectal cancer, lobectomy for lung cancer, and extensive treatment for uterine cancer. In total hysterectomy, preoperative Hb
Risk factor analysis by a multiple logistic model based on the relationship between the value, the ASA classification, the operative procedure, the ratio (T) of the bleeding volume to the circulating blood volume (T), the frequency of use of the erythrocyte preparation, and the erythrocyte use amount As shown below, it is the reciprocal of the value obtained by adding 1 to the calculated value (−Z) raised to the natural logarithm e.

The prediction probability (P) is given by the following equation. Prediction probability (P) = 1 / {1 + exp (-Z)} where Z = ab-Hb + c-T (%) + d + e + fa a = 2.8451 b = 0.628 c = 0.179 d = 2.73112 (ASA = 3 or 4 or 5) e = 0.6327 (semicolectomy) f = 0.7199 (wide hysterectomy) a, b, and c in the above formulas are constants.

Hb, which is a parameter in the above formula, is a preoperative blood hemoglobin value in units of g / dL, and T is a ratio of bleeding volume to circulating blood volume in units of%.

The circulating blood volume on which the above calculation is based is 80 mL / body weight in the specified value. However, since this value is mainly for children, the actual circulating blood volume depends on age, sex, etc. May deviate from this prescribed value, so that it can be set freely from 0 to 100 mL / body weight, and (P) is obtained as a reference value of the above formula.

D in the above equation is ASA (American Soc)
parameters determined by the patient's condition assessment class based on the nature of the anesthesiologists physical status).
In case of ASA 1 or 2, it becomes 0, and ASA 3 or 4
Or in the case of 5, it becomes 2.7312.

E in the above calculation formula is a parameter according to the operative method, and is, for example, 0.6327 for hemicolectomy and -0.7199 for extensive hysterectomy.

(P) is a probability value, which is calculated as a value between 0 and 1.0. When (P) is 1.0, it is a transfusion example, and when it is 0, it is a non-transfusion example.

FIG. 5 is a plot of calculated values (P) based on actual cases on probability curves. This probability curve is stored in the memory 14.

The value of (P) as a judgment value for determining whether or not to perform blood transfusion can have a statistical significance at a value of 0.5 or more on this curve, but has a wide range of evaluation of clinical data. If (P) shows 0.6 or more, the group is included in the blood transfusion group and is in the boundary area between the blood transfusion group and the non-transfusion group, and thus the judgment is made in consideration of the background of the patient and the course during the operation.
The boundary region is determined based on, for example, the standard deviation of the probability curve. It is the prediction probability determination reference display generation unit 15 that generates reference information for this determination.

In the present apparatus, in order to facilitate the calculation of (P), the program is a program that can be operated on any programmable computer such as a desktop computer, a notebook computer, a mobile computer, and a PDA, and the operating system can be freely selected. It has become. This is the same in the second embodiment of the invention.

The present apparatus is a program that runs on an operating system on an electronic device, and is implemented as an executable program file.

Next, the operation will be described with reference to the flowchart of FIG. 2, the parameter data input screen of FIG. 3, and the display screen of FIG.

When the installed program is started, initialization is performed, and a parameter input screen in Japanese or a foreign language appears on the screen (FIG. 3).

S1: The total circulating blood volume (TBW) is set. The current total circulating blood volume is shown at 100 on the screen. In the example of FIG. 3, it is 80%. This value can be arbitrarily set by operating a switch (not shown).

S2: Input calculation data. Since it differs for each patient, input for each patient. At 101 to 103 on the screen, the weight, the amount of bleeding, and the Hb value of the patient before operation are input. Input is performed by pressing a key of an input unit (touch panel) 106 displayed on the screen. The ASA value of the patient is set by selecting any one of 1, 2, 3, 4, and 5 on the screen. In FIG. 3, ASA = 1. The operation type is set by selecting one of 105 on the screen. Surgical treatment options include Half Colonic Resection,
All The Wide Area Uterine Extracti
on), select one of the other operations. In FIG. 3, another operation has been selected.

S3: After completion of the input, when the calculation start button (Calc) on the screen is clicked, based on the above formula (P)
Is calculated.

S4: The calculated prediction probability (P) is displayed on the screen. FIG. 4 shows an example. Display part 10 of the screen
7, a horizontal line graph 109 is displayed on the screen together with the value 108 of the prediction probability (P). The user can see graph 10
By comparing 9 with a reference unit 110 described later, it is possible to easily determine visually whether blood transfusion is necessary. The graph 109 is such that the left end portion indicates the value of the prediction probability (P) on the scale of the reference portion 110 so that the reference portion 11
It is associated with 0. The scale of the reference section 110 is linear, with 0.0 at the left end and 1.0 at the right end. The P value is 0 to 1.0. 0 means "no blood transfusion" and 1.0 means "blood transfusion". Usually 0.5
Means "start of blood transfusion", but in the embodiment of the present invention, a boundary area between 0.4 and 0.6, that is, preparation / start time of blood transfusion. This is the next step S
See the description of No. 5.

S5: Display a reference part for predicting probability determination. Referential part 1 arranged in graph 109 of prediction probability (P)
10 is displayed. The prediction probability determination reference display generation unit 15
A range 110 where blood transfusion is unnecessary based on the probability curve of the memory 14
a, a region 110c that requires blood transfusion, a boundary region 110b is set in a region between these, and
07 is displayed. To make it easier to see these ranges visually, the brightness, color,
It is desirable to change the pattern, shape, and the like. The example in FIG.
An example in which the luminance is increased (or decreased) in the order of the regions 110a, 110b, and 110c will be described. In addition, the area 110
a, 110b, and 110c may be colored green, yellow, and red, respectively, or the thickness of the line may be changed.

When the predicted probability (P) enters the area 110b or 110c, one or both of the displays 108 and 109 may be blinked. Alternatively, a non-visual notification unit, for example, a sound notification unit using a buzzer or a vibration notification unit using a vibrator may be provided.

S6: The calculation and display processing of the prediction probability (P) are completed as described above, but when the processing is continuously performed (N
O), returning to step S1, and repeating the above processing. When the processing is completed (YES), the operation ends.

The input data and the calculated (P) value are sent to another system via a wired or wireless interface (not shown), where the data is automatically linked with the patient identification number and stored. It can be used for counting work at a later date.

The apparatus according to the embodiment of the present invention automatically calculates the total circulating blood volume based on the weight of the patient, and calculates the preoperative Hb.
By entering the value, it is possible to know an appropriate blood transfusion start time and reduce excessive blood transfusion.

The advantages of the device according to the embodiment of the present invention are as follows: (1) Prediction of the amount of bleeding at the time of operation before surgery, thereby enabling T & S (blood group irregular antibody screening method), autologous blood transfusion, and intraoperative recovery. Preparations such as autologous blood transfusion can be recommended. (2) The appropriate timing of blood transfusion preparation and blood transfusion start can be known based on the amount of bleeding during and after the operation. (3) Blood transfusions can be reduced, and blood test opportunities can be reduced, thereby reducing costs.

Embodiment 2 of the Invention The embodiment of the present invention is for assisting in determining whether or not blood transfusion is required. Another method of blood transfusion support is to calculate an appropriate blood transfusion amount at the time of blood transfusion. The device / method according to the second embodiment of the present invention provides a function of calculating an appropriate blood transfusion amount. In addition, as a transfusion support device,
Embodiments 1 and 2 of the present invention can be configured in combination, or can be configured independently of each other.

FIG. 6 is a block diagram showing an apparatus according to Embodiment 2 of the present invention. 6, reference numeral 1 denotes a processing unit including a CPU, a memory, and the like, 2 denotes a display unit such as a liquid crystal display device,
Reference numeral 3 denotes an input unit such as a key switch and a touch panel.
Set parameters and input data from the input unit 3,
Based on these, the processing unit 1 performs the following processing, and displays the result on the display unit 2. The processing unit 1 includes a memory 11 for storing the total circulating blood volume, a blood transfusion volume calculating unit 16 for calculating a blood transfusion volume based on data such as the total circulating blood volume and the weight of the patient, and a blood transfusion for displaying based on the calculated blood transfusion volume. Quantity display generator 1
7. It includes a transfusion pack number calculation unit 18 that calculates the number of transfusion packs based on the calculated transfusion volume, and a transfusion pack number display generation unit 19 that displays the number of transfusion packs.

The apparatus / method according to the second embodiment of the present invention automatically calculates the red blood cell concentrate dose based on the following equation. MAP-added red blood cell concentrate (M
There are two types of AP-added RCC: a 140 mL pack from 200 mL whole blood (1 unit) and a 280 mL pack from 400 mL whole blood (2 units). Hb value is 200m
It is 29 ± 2.7 g from L whole blood. The required number of packs can be calculated together with the required amount of blood transfusion in the second embodiment of the present invention.

Next, the operation will be described with reference to the flowchart of FIG. When the installed program is started, initialization is performed and a parameter input screen in Japanese or foreign language appears on the screen.

S10: The total circulating blood volume (TBW) is set. The current total circulating blood volume is shown at 100 on the screen. This value can be arbitrarily set by operating a switch (not shown) (for example, 70%).

S11: Input calculation data. Since each patient varies, the weight of each patient,
Enter the b value and the desired Hb value.

S12: After completion of the input, when the calculation start button (Calc) on the screen is clicked, the blood transfusion amount (required MAP amount) is calculated based on the following equation. Required MAP RCC (m
L) = (desired Hb value−current Hb value) × predicted rise Hb value where predicted rise Hb value (g / dL) = administration Hb value (g) / circulating blood volume (dL) circulating blood volume (dL) = Body weight (kg) x 70 mL / kg /
100 The administration Hb value is 30 g. 70 mL of the circulating blood volume can be changed by the above step S10.

S13: The calculated blood transfusion amount is displayed on the screen. S14: The required MAP-added RCC (mL) is derived from 200 mL, but 140 mL is one unit amount. If it is derived from 400 mL, the unit is 280 mL. Thus, blood packs for transfusion are in units of 140 mL and 280 mL. On the other hand, a blood pack of autologous blood and stored blood is in units of 200 mL. Blood is arranged in these units. Therefore, it is convenient to present not only the information of the blood transfusion amount 200 mL but also the number of packs actually arranged. Whether the pack is a normal pack or a pack of autologous / preserved blood is set in advance as a parameter. The user can change this appropriately.

S15: After calculating the amount of blood transfusion, clicking the calculation start button (Calc) on the screen further calculates the required number of blood packs. Therefore, the transfusion pack number calculation unit 18
Calculates the required number of packs by dividing the calculated transfusion volume by 140 mL. Fractions are rounded up. For example, transfusion volume 2
At the time of 00mL, two 140mL packs or 28
You will need one 0mL pack.

In the case of autologous / preserved blood, the calculated transfusion volume is divided by 200 mL. With the administration of autologous blood, an elevated Hb value can be assumed. Note that both cases may be displayed simultaneously or alternately.

S16: The calculation and display processing of the blood transfusion amount is completed as described above, but when the processing is continuously performed (NO), the process returns to step S10, and the above processing is repeated. When the processing is completed (YES), the operation ends.

The input data and the calculated blood transfusion amount are sent to another system via a wired or wireless interface (not shown), where the data is automatically linked with the patient identification number, stored, and stored at a later date. It can be used for counting work.

According to the apparatus 2 according to the embodiment of the present invention, the necessary transfusion volume is automatically calculated by inputting the patient's weight, the current Hb value, and the desired Hb value, and further arrangement should be made. The number of packs can be provided. Therefore, an appropriate amount of blood can be arranged, and excessive blood transfusion can be reduced.

Embodiment 3 of the Invention The first and second embodiments of the present invention are independent systems realized by small computers. The present invention can be applied to systems other than the single system, and for example, can perform processing in cooperation with another system.

For example, when this apparatus is used as an input terminal of the system, the input items include a judgment date, a judgment person, a chart number, a patient name, a patient identification number, a date of birth, a disease name, a surgical operation, and a scheduled operation date. And the results of various tests such as blood test, urine test, and findings of diagnostic imaging can be input and transferred to an electronic medical record system. The electronic medical record system stores this information in a database. Or, conversely, the apparatus can receive data such as the weight of the patient from the electronic medical record system.

Alternatively, the program of the present apparatus can be transplanted to another apparatus in the operating room, so that the apparatus has the function of the present apparatus. With this device, the necessity of blood transfusion can be easily determined in accordance with the progress of surgery.

Also, by incorporating the present apparatus into a server and connecting the server to a network such as the Internet, the functions of the present apparatus can be provided on the Web. If blood is to be arranged on the Web, the necessity of the necessity and the required amount are provided to the user by inputting the conditions of the first and second embodiments of the invention, and the preparation of the blood donor is promptly performed. Can be done.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, this is done.

Further, in this specification, means does not necessarily mean physical means, but also includes a case where the function of each means is realized by software.
Further, the function of one unit may be realized by two or more physical units, or the function of two or more units may be realized by one physical unit.

[Brief description of the drawings]

FIG. 1 is a block diagram of an apparatus according to Embodiment 1 of the present invention.

FIG. 2 is a processing flowchart according to the first embodiment of the present invention.

FIG. 3 is an example of a data input screen according to the first embodiment of the present invention.

FIG. 4 is an example of a prediction probability display screen according to Embodiment 1 of the present invention.

FIG. 5 is an example of a probability curve related to blood transfusion.

FIG. 6 is a block diagram of an apparatus according to Embodiment 2 of the present invention.

FIG. 7 is a processing flowchart according to Embodiment 2 of the present invention.

[Explanation of symbols]

 1 Processing Unit 11 Total Circulating Blood Volume Memory 12 Prediction Probability Calculation Unit 13 Prediction Probability Display Generation Unit 14 Probability Curve Memory for Blood Transfusion 15 Prediction Probability Judgment Reference Display Generation Unit 16 Blood Transfusion Volume Calculation Unit 17 Blood Transfusion Volume Display Generation Unit 18 Calculation of Number of Blood Transfusion Packs Unit 19 Transfusion pack number display generation unit 2 Display unit 3 Input unit

Claims (14)

[Claims] 1. A memory for storing a circulating blood volume, a prediction probability of transfusion based on externally provided data including at least a patient's body weight, bleeding volume, and surgical procedure, and a circulating blood volume read from the memory. A prediction probability calculation unit for calculating
A prediction probability display generation unit that displays the prediction probability calculated by the prediction probability calculation unit; and a prediction probability determination reference display generation that generates a reference display for determining the prediction probability based on a probability curve related to blood transfusion given in advance. Blood transfusion support device comprising: 2. The proper blood transfusion support device according to claim 1, wherein the circulating blood volume of said memory can be set within a predetermined range. 3. The prediction probability determination reference display unit sets a determination value of whether to perform blood transfusion based on the probability curve, and sets a boundary region in a range including the determination value based on the probability curve. The proper blood transfusion support device according to claim 1, characterized in that: 4. The prediction probability display generation unit generates a bar graph representing the calculated prediction probability, and the prediction probability determination reference display unit displays an area requiring blood transfusion in accordance with the bar graph of the prediction probability. 4. A proper transfusion support according to claim 3, wherein a reference bar graph including a region not requiring blood transfusion and the boundary region is generated, and the reference bar graph is displayed side by side near a bar graph indicating the prediction probability. apparatus. 5. A step of setting a circulating blood volume; a step of inputting data including at least a patient's weight, a bleeding volume and a surgical procedure; and a prediction probability of transfusion based on the provided data and the circulating blood volume. Calculating the predicted probability, generating a reference display for determining the predicted probability based on a probability curve regarding blood transfusion given in advance, and displaying the reference display. A proper blood transfusion support method with 6. A computer, comprising the steps of: setting a circulating blood volume; receiving data including at least a patient's weight, bleeding volume, and surgical procedure; and performing a blood transfusion based on the provided data and the circulating blood volume. Calculating a predicted probability; displaying the calculated predicted probability; generating a reference display for determining the predicted probability based on a probability curve relating to blood transfusion given in advance; and displaying the reference display. A program for executing steps. 7. A memory for storing a circulating blood volume, a patient's weight, a current blood hemoglobin value (current Hb value), a desired blood hemoglobin value (desired Hb value), and circulating blood read from the memory. An appropriate blood transfusion support device including a blood transfusion amount calculation unit that calculates a blood transfusion amount based on a volume and a blood transfusion amount display generation unit that displays the calculated blood transfusion amount. 8. The blood transfusion amount calculating section calculates the following MAP added RCC (mL) = (desired Hb value−current Hb value).
Value) × Predicted rise Hb value Predicted rise Hb value (g / dL) = administration Hb value (g) / circulating blood volume (dL) Circulating blood volume (dL) = body weight (kg) × 70 mL / kg /
The blood transfusion amount is calculated based on 100 administration Hb value = 30 g.
Appropriate blood transfusion support device as described. 9. The proper blood transfusion support device according to claim 7, wherein the circulating blood volume of said memory can be set within a predetermined range. 10. A blood transfusion pack number calculation unit for calculating the number of blood transfusion packs based on the calculated blood transfusion amount, and a blood transfusion pack number display generation unit for displaying the calculated blood transfusion pack number. The proper blood transfusion support device according to claim 7, wherein 11. The proper blood transfusion support device according to claim 10, wherein the blood transfusion pack number calculation unit calculates the number of blood transfusion packs based on a preset blood transfusion pack unit. 12. The blood transfusion amount or the number of the blood transfusion packs is displayed.
Appropriate blood transfusion support device as described. 13. A step of setting a circulating blood volume, a patient's weight, and a current blood hemoglobin value (current Hb value).
And a step of inputting a desired blood hemoglobin value (a desired Hb value); a step of obtaining a blood transfusion amount based on the given data and the circulating blood volume; a step of displaying the calculated blood transfusion amount; And calculating the number of blood transfusion packs based on the blood transfusion amount, and displaying the calculated number of blood transfusion packs. 14. A computer for setting a circulating blood volume; a patient's weight; a current blood hemoglobin value (current Hb value);
Receiving a desired blood hemoglobin value (desired Hb value); obtaining a transfusion volume based on the given data and the circulating blood volume; displaying the calculated transfusion volume; A program for executing a step of calculating the number of blood transfusion packs based on the amount of blood transfusion, and a step of displaying the calculated number of blood transfusion packs.