Recombinant factor VII for severe bleeding during extracorporeal membrane oxygenation following open heart surgery

2005 ◽  
Vol 6 (4) ◽  
pp. 473-476 ◽  
Author(s):  
Birgit Wittenstein ◽  
Cho Ng ◽  
Hanne Ravn ◽  
Allan Goldman
2018 ◽  
Vol 84 (4) ◽  
pp. 587-592 ◽  
Author(s):  
Don K. Nakayama

Evolving from the development of heart-lung machines for open-heart surgery, extracorporeal membrane oxygenation has reemerged as a rescue modality for patients with acute respiratory failure that cannot be supported by conventional modes of ventilation. The history of extracorporeal membrane oxygenation begins with the discovery of heparin, fundamental to the success of extracorporeal circulation and membrane lungs. Engineers and scientists created suitable artificial membranes that allowed gas exchange while keeping gas and blood phases separate. Special pumps circulated blood through the devices and into patients without damage to delicate red cells and denaturing plasma. Initial attempts in adults ended in failure, but Robert Bartlett, first at Loma Linda, CA, then at Ann Arbor, MI, succeeded in applying the technology in newborn infants with persistent pulmonary hypertension. Preserved in the critical care of infants, the technology in time could be reapplied in the life support of older children and adults.


1999 ◽  
Vol 23 (11) ◽  
pp. 1010-1014 ◽  
Author(s):  
Gerhard Trittenwein ◽  
Heike Pansi ◽  
Bernadette Graf ◽  
Johann Golej ◽  
Gudrun Burda ◽  
...  

1964 ◽  
Vol 11 (01) ◽  
pp. 254-266 ◽  
Author(s):  
Herbert A Perkins ◽  
Mary R Rolfs ◽  
Barbara Torg

SummaryTechnics have been devised permitting assay of certain coagulation factors in blood despite the presence of heparin in the sample. In the process of developing these methods, heparin and Polybrene were added to whole blood or plasma in varions quantities and a large number of coagulation tests then performed. Considerable differences in the sensitivity of the various assays to the added test substances were evident. It is believed that they were due, at least in part, to the varying dilutions of plasma utilized. The results shed no insight on the mechanisms by which heparin exerts its anticoagulant effects; the inhibitory activity of Polybrene, however, was largely restricted to the stage of thromboplastin generation.Polybrene had a much weaker inhibitory effect than heparin on all tests, and in many assays it was possible to add a standard amount of Polybrene without altering results. The amount chosen was large enough to neutralize any quantity of heparin likely to be present in a sample obtained from a patient during open heart surgery.Factor V could be assayed with accuracy only if heparin was neutralized as the sample was collected. Assay of Factor VIII was successful only if the Polybrene was added after, the step of adsorption with aluminum hydroxide. A one-stage prothrombin assay presented no problems, but assays for Factor VII complex provided distinctly different results from those found in a duplicate sample collected in citrate alone.


2003 ◽  
Vol 76 (6) ◽  
pp. 2093-2094 ◽  
Author(s):  
Chiho Tokunaga ◽  
Yuji Hiramatsu ◽  
Hitoshi Horigome ◽  
Miho Takahashi-Igari ◽  
Mio Noma ◽  
...  

2018 ◽  
Vol 28 (11) ◽  
pp. 1289-1294 ◽  
Author(s):  
Ikechukwu A. Nwafor ◽  
Onyinyechukwu A. Arua ◽  
John C. Eze ◽  
Ndubueze Ezemba ◽  
Maureen N. Nwafor

AbstractBackgroundIn Nigeria, access to open heart surgery (OHS) is adversely affected by insufficient blood and blood products, including the challenges because of the lack of patient-focused blood management strategies owing to the absent requisite point-of-care tests in the operating theatre (OR)/ICU. In addition, the limited availability of altruistic blood donors including the detection of transfusion transmitted infections more commonly among non-altruistic blood donors is another burden affecting the management of excessive bleeding during and after open heart surgery in our country.ObjectiveThe objective of this study was to review our local experience in the use of blood and blood products during open heart surgery and compare the same with the literature.Materials and methodsIn a period of 3 years (March, 2013–February, 2016), we performed a retrospective review of those who had open heart surgery in our institution. The data were obtained from our hospital health information technology department. The data comprised demography, types of operative procedures and units of blood and blood products transfused per procedure, including the details regarding the usage of the cell saver, as well as those who had severe bleeding requiring excessive blood transfusion.ResultsDuring the study period, 102 patients had open heart surgery, an average of 34 cases in a year. Among them, there were 75 (73.53%) males and 37 (36.27%) females, giving a ratio of 2:1. The ages of the patients were from 0.6 (7/12) to 74 years. Mitral valve procedure was the most common (n=22, 21.6%) surgery type. Transfusion requirements averaged 1.9 units of fresh frozen plasma, 0.36 units of platelet concentrate, and 1.68 units of packed cells per procedure. The least common surgical procedure was common atrium repair (n=1, 0.01%).ConclusionOpen heart procedure is a very complex procedure requiring cardiopulmonary bypass with associated severe perioperative bleeding. The attendant blood loss and haemostatic challenges are combated by intricate and selective transfusions of allogeneic blood and or blood products.


2010 ◽  
Vol 10 (6) ◽  
pp. 1037-1038 ◽  
Author(s):  
Hironori Matsuhisa ◽  
Naoki Yoshimura ◽  
Hideki Niimi ◽  
Fukiko Ichida

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