scholarly journals Clinical Response and Transfusion Reactions of Sheep Subjected to Single Homologous Blood Transfusion

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Rejane Santos Sousa ◽  
Antonio Humberto Hamad Minervino ◽  
Carolina Akiko Sato Cabral Araújo ◽  
Frederico Augusto Mazzocca Lopes Rodrigues ◽  
Francisco Leonardo Costa Oliveira ◽  
...  
Keyword(s):  
Blood Volume ◽  
Clinical Manifestations ◽  
Blood Conservation ◽  
Fresh Blood ◽  
Homologous Blood ◽  
Total Blood ◽  
Homologous Blood Transfusion ◽  
Clinical Observations ◽  
Stored Blood ◽  
Transfusion Reactions

Studies in relation to blood conservation and responses to transfusion are scarce for ruminants. We evaluated the clinical manifestations of sheep that received a single homologous transfusion of whole blood, focusing on transfusion reactions. Eighteen adult sheep were subjected to a single phlebotomy to withdraw 40% of the total blood volume, which was placed into CPDA-1 bags and then divided into G0, animals that received fresh blood, and G15 and G35, animals that received blood stored for 15 or 35 days, respectively. Clinical observations were recorded throughout the transfusion, whereas heart rate, respiratory rate, and rectal temperature were assessed at the following times: 24 hours after phlebotomy and before transfusion; 30 minutes, six, twelve, 24, 48, 72, and 96 hours and eight and 16 days after transfusion. All groups presented transfusion reactions, among which hyperthermia was the most frequent (50% of animals). Tachycardia occurred most frequently in the G35 animals (50% of them). During transfusion G35 animals presented more clinical manifestation(P<0.05). Transfusion of fresh or stored total blood improved the blood volume, but transfusion reactions occurred, demonstrating that a single transfusion of fresh or stored blood can cause inflammatory and febrile nonhemolytic transfusion reactions in sheep.

scholarly journals Microfiltration of Stored Blood

1980 ◽  
Vol 8 (2) ◽  
pp. 158-161 ◽  
Author(s):  
E. D. Loong
Keyword(s):  
Experimental Evidence ◽  
Blood Volume ◽  
Red Cells ◽  
Arterial Oxygen ◽  
Fresh Blood ◽  
Arteriovenous Shunting ◽  
Glass Containers ◽  
Denatured Proteins ◽  
Stored Blood

Microaggregates begin to develop within a few hours of storage of blood in plastic or glass containers, but their numbers increase mainly towards the end of the first week. They include degenerated platelets, leucocytes, fibrin strands, denatured proteins and fragmented red cells, and range in size from 10 to 40 μm or more in diameter. The rate of formation is related to the platelet and leucocyte concentrations prior to storage and the anticoagulant used. While clinical and experimental evidence of deleterious pulmonary effects of these unwanted particles has been limited and contradictory, recent studies have demonstrated that significant increases in pulmonary arteriovenous shunting and alveolar-arterial oxygen differences occur in patients transfused more than 20% of their blood volume through the standard 170 μm filters. These changes are not seen when the blood is passed through a 20 μm Dacron wool filter. Other methods of reducing the microaggregate content of transfused blood include the use of fresh blood (less than 2 days), glycerol-frozen fresh blood correctly thawed, or saline-washed packed red cells. Since none of these is feasible for routine use at present, removal by microfiltration prior to transfusion is employed. Of the filters currently available, the 40 μm screen filters appear to offer important practical advantages over the alternative depth filters. Routine filtration of all stored blood transfused is advocated.

scholarly journals Comparison of the efficacy of autologious blood transfusion combined with preoperative hemodilution, with homologous blood transfusion in patients undergoing elective surgical procedure

2018 ◽  
Vol 5 (3) ◽  
pp. 536
Author(s):  
Sanjay Saksena ◽  
Namrata Jain ◽  
Alok Dixit
Keyword(s):  
Blood Transfusion ◽  
Autologous Blood ◽  
Blood Bank ◽  
Autologous Blood Transfusion ◽  
Homologous Blood ◽  
Homologous Blood Transfusion ◽  
Coagulation Profile ◽  
Group A ◽  
Group B ◽  
Transfusion Reactions

Background: To study the changes in haemogram and coagulation profile in patients undergoing autologous and homologous blood transfusion and suitability of the technique of autologous blood transfusion in routine blood bank management.Methods: Patients who were waiting to undergo elective surgical procedures were randomly distributed in two groups, Group A:  Autologous blood transfusion, with or without haemodilution: wherein pre-operative period a predicted volume of blood was collected and Group B: Homologous blood transfusion: where required blood was arranged from Blood Bank. The cardiovascular status, the haemogram and the coagulation profile were recorded at various stages.Results: Out of 240 patients registered only 43 could fulfil the basic requirements only 25 could be motivated in each group. In Group A cases were of age group 51-60 years while it was 41-50 years in Group B. Male:Female ratio was 2:1. 47 Units were retransfused to Group A patients, Group B cases received 45 blood transfusions. In Group A patients 8% cases showed mild hypotention and 1% showed mild hypersensitivity to Haemacel. In Group B, 40% cases showed transfusion reactions. Fall in Hb was lesser in Group A (2.4) on first and (1.7) on second postoperative day compared to Group B (3.3) on first and (2.7) on second postoperative day. The haematocrit levels declined more sharply after operation in Group B (7) rather than Group A (10.4).Conclusions: Advantage of avoiding transfusion reactions, major changes in blood parameters, entry of infections proves Autologous blood transfusion to be the safest, cost effective and easy form of transfusion therapy.

Observations on Cardiac Output and ”Pulmonary Blood Volume” in Normal Man by External Recording of the Intracardiac Flow of 131I Labelled Albumin

1961 ◽  
Vol 1 (04) ◽  
pp. 353-379
Author(s):  
Jacques Lammerant ◽  
Norman Veall ◽  
Michel De Visscher
Keyword(s):  
Cardiac Output ◽  
Blood Volume ◽  
Normal Subjects ◽  
Published Data ◽  
Total Blood Volume ◽  
Total Blood ◽  
Pulmonary Blood Volume ◽  
Intracardiac Flow ◽  
Normal Man ◽  
Mean Circulation

Summary1. The technique for the measurement of cardiac output by external recording of the intracardiac flow of 131I labelled human serum albumin has been extended to provide a measure of the mean circulation time from right to left heart and hence a new approach to the estimation of the pulmonary blood volume.2. Values for the basal cardiac output in normal subjects and its variations with age are in good agreement with the previously published data of other workers.3. The pulmonary blood volume in normal man in the basal state was found to be 28.2 ± 0.6% of the total blood volume.4. There was no correlation between cardiac output and pulmonary blood volume in a series of normal subjects in the basal state.5. The increase in cardiac output during digestion was associated with a decrease in pulmonary blood volume equal to 6.3 ± 1.2% of the total blood volume, that is, about 280 ml.6. The increase in cardiac output during exercise was associated with a decrease in pulmonary blood volume equal to 4.5 ± 1.0% of the total blood volume, that is, about 200 ml.7. The increase in cardiac output attributed to alarm is not associated with a decrease in pulmonary blood volume, the latter may in fact be increased.8. The total blood volume is advocated as a standard of reference for studies of this type in normal subjects in preference to body weight or surface area.9. The significance of these results and the validity of the method are discussed.

Acute Isovolaemic Haemodilution: The Best Option for Autologous Blood Transfusion in Africa?

1995 ◽  
Vol 25 (4) ◽  
pp. 152-155 ◽  
Author(s):  
Zacharia A Berege ◽  
Bart Jacobs ◽  
Michael R Matasha ◽  
Frank Mpelumbe ◽  
Ernestini Kimaro
Keyword(s):  
Blood Transfusion ◽  
Blood Loss ◽  
Autologous Blood ◽  
Autologous Blood Transfusion ◽  
Total Blood Volume ◽  
East African ◽  
Homologous Blood ◽  
Total Blood ◽  
Induction Of Anaesthesia ◽  
Donated Blood

The purpose of this study was to identify the best method of autologous blood transfusion to be applied in an East African hospital. One hundred and nine consecutive patients for whom major blood loss was anticipated were enrolled. Seventeen patients donated 1 unit of blood 3 days preoperatively and 92 underwent acute isovolaemic haemodilution prior to induction of anaesthesia. For the haemodiluted patients a 2:1 ratio of sterile pryogen-free saline to collected blood was used. One of the 16 patients from whom 2 units were withdrawn by haemodilution experienced hypovolaemia which was rapidly restored by additional transfusion of colloid. Of the patients who donated blood preoperatively only 23.5% were autotransfused compared to 98.9% of the haemodiluted patients. Of the latter 23.9% (22) had an intraoperative blood loss exceeding 15% of their total blood volume and 7.6% (7) lost more than 25%. Only one received homologous blood in addition. For hospitals with limited blood bank facilities and regular cancellation of surgery, the use of acute isovolaemic haemodilution is recommended. A 3:1 ratio of saline to blood is now advised when 1 unit is withdrawn and a part replacement with crystalloid when 2 units are collected.

Epidermoid brain cysts: a case report and a literature review

2021 ◽  
pp. 358-371
Author(s):  
Maksim Vladimirovich Shpagin ◽  
Anton Viktorovich Yarikov ◽  
Denis Nikolaevich Nikitin ◽  
Igor Anatolievich Lobanov ◽  
Ivan Aleksandrovich Laganin ◽  
...  
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Cerebellopontine Angle ◽  
Clinical Manifestations ◽  
Complex Treatment ◽  
Brain Pathology ◽  
Epidermoid Cysts ◽  
Histological Picture ◽  
Clinical Observations ◽  
Brain Cysts

The article is devoted to rare brain pathology, i.e. epidermoid cysts. The histological picture of the tumor is described; the classification is given. On the basis of our own clinical observations and a literature review, the features of the clinical manifestations of cholesteatoma of the cerebellopontine angle, modern approaches to the diagnosis and tactics of complex treatment are presented.

Cerebral oxygen availability by NIR spectroscopy during transient hypoxia in humans

1990 ◽  
Vol 69 (3) ◽  
pp. 907-913 ◽  
Author(s):  
N. B. Hampson ◽  
E. M. Camporesi ◽  
B. W. Stolp ◽  
R. E. Moon ◽  
J. E. Shook ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Volume ◽  
Near Infrared ◽  
Cerebral Blood Volume ◽  
Minute Ventilation ◽  
Nir Spectroscopy ◽  
Redox Status ◽  
Total Blood ◽  
Arterial Ph

The effects of mild hypoxia on brain oxyhemoglobin, cytochrome a,a3 redox status, and cerebral blood volume were studied using near-infrared spectroscopy in eight healthy volunteers. Incremental hypoxia reaching 70% arterial O2 saturation was produced in normocapnia [end-tidal PCO2 (PETCO2) 36.9 +/- 2.6 to 34.9 +/- 3.4 Torr] or hypocapnia (PETCO2 32.8 +/- 0.6 to 23.7 +/- 0.6 Torr) by an 8-min rebreathing technique and regulation of inspired CO2. Normocapnic hypoxia was characterized by progressive reductions in arterial PO2 (PaO2, 89.1 +/- 3.5 to 34.1 +/- 0.1 Torr) with stable PETCO2, arterial PCO2 (PaCO2), and arterial pH and resulted in increases in heart rate (35%) systolic blood pressure (14%), and minute ventilation (5-fold). Hypocapnic hypoxia resulted in progressively decreasing PaO2 (100.2 +/- 3.6 to 28.9 +/- 0.1 Torr), with progressive reduction in PaCO2 (39.0 +/- 1.6 to 27.3 +/- 1.9 Torr), and an increase in arterial pH (7.41 +/- 0.02 to 7.53 +/- 0.03), heart rate (61%), and ventilation (3-fold). In the brain, hypoxia resulted in a steady decline of cerebral oxyhemoglobin content and a decrease in oxidized cytochrome a,a3. Significantly greater loss of oxidized cytochrome a,a3 occurred for a given decrease in oxyhemoglobin during hypocapnic hypoxia relative to normocapnic hypoxia. Total blood volume response during hypoxia also was significantly attenuated by hypocapnia, because the increase in volume was only half that of normocapnic subjects. We conclude that cytochrome a,a3 oxidation level in vivo decreases at mild levels of hypoxia. PaCO is an important determinant of brain oxygenation, because it modulates ventilatory, cardiovascular, and cerebral O2 delivery responses to hypoxia.

scholarly journals Changes in the microRNA expression profile during blood storage

2018 ◽  
Vol 4 (1) ◽  
pp. e000354 ◽  
Author(s):  
Anna Haberberger ◽  
Benedikt Kirchner ◽  
Irmgard Riedmaier ◽  
Reinhard Henschler ◽  
Christian Wichmann ◽  
...  
Keyword(s):  
Blood Donation ◽  
Autologous Blood ◽  
Blood Storage ◽  
Fresh Blood ◽  
Biomarker Signature ◽  
Male Subjects ◽  
Stored Blood ◽  
Individual Erythrocytes ◽  
Generation Sequencing

ObjectivesFor several decades, autologous blood doping (ABD) in sports has been a major problem, and even today there is still no reliable method for satisfactorily detecting ABD. For this kind of doping, stored individual erythrocytes are used to increase stamina and endurance caused by a higher erythrocyte level in the athlete’s body. Since there is growing evidence that these cells are enriched with microRNAs (miRNAs), this study has been carried out to discover and validate all miRNAs occurring in fresh blood as well as in stored blood.MethodsTherefore, small RNA Next Generation Sequencing has been performed, which allows untargeted detection of all miRNAs in a blood sample. The focus of this investigation has been to find miRNA alterations in blood bags after erythrocyte processing and during storage, as compared with fresh blood directly withdrawn from subjects. Blood samples were obtained from 12 healthy, recreationally active male subjects three times before blood donation and from blood bags at several time points after blood processing.Results189 miRNAs have been considered stable over two consecutive weeks. A further analysis revealed a complex biomarker signature of 28 miRNAs, consisting of 6 miRNAs that altered during 6 weeks of storage and 22 miRNAs that altered due to processing.ConclusionThese results suggest that the identified miRNA biomarker signature may be used for the detection of ABD. These 28 miRNA candidates are tested and verified currently in a follow-up study, a human transfusion clinical trial in healthy sportsmen.

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