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A Canadian survey of transfusion practices in critically ill patients

医学 专业 休克(循环) 乳酸性酸中毒 感染性休克 重症监护 低氧血症 急诊医学 重症监护医学 败血症 内科学 家庭医学
作者
Paul C. Hébert,George A. Wells,Claudio M. Martin,Martin Tweeddale,John C. Marshall,Morris A. Blajchman,Giuseppe Pagliarello,Irwin Schweitzer,Lisa A. Calder
出处
期刊:Critical Care Medicine [Ovid Technologies (Wolters Kluwer)]
卷期号:26 (3): 482-487 被引量:189
标识
DOI:10.1097/00003246-199803000-00019
摘要

To characterize the contemporary red cell transfusion practice in the critically ill and to define clinical factors that influence these practices.Scenario-based national survey.Canadian critical care practitioners.We evaluated transfusion thresholds before transfusion and the number of red cell units ordered, under the given conditions. Of 254 Canadian critical care physicians, 193 (76%) responded to the survey. The primary specialty of most respondents was internal medicine (56%). Internal medicine respondents were in practice for an average of 8.4 +/- 5.7 (SD) yrs, and worked most often in combined medical/surgical intensive care units. Baseline hemoglobin transfusion thresholds averaged from 8.3 +/- 1.0 g/dL in a scenario involving a young stable trauma victim to 9.5 +/- 1.0 g/dL for an older patient after gastrointestinal bleeding. Transfusion thresholds differed significantly (p< .0001) between all four separate scenarios. With the exception of congestive heart failure (p> .05), all clinical factors (including age, Acute Physiology and Chronic Health Evaluation II score, preoperative status, hypoxemia, shock, lactic acidosis, coronary ischemia, and chronic anemia) significantly (p< .0001) modified the transfusion thresholds. A statistically significant (p< .01) difference in baseline transfusion thresholds was noted across four major regions (with a maximum of five academic centers per region) of the country. Low physician numbers in two of the regions did not allow for further investigation of regional variations.There is significant variation in critical care transfusion practice, with many intensivists adhering to a 10.0-g/dL threshold, while other physicians described a much more restrictive approach to red cell transfusion. Also, many physicians opted to administer multiple units, despite published guidelines to the contrary. Additionally, the administration of red cells was strongly influenced by a number of clinical factors, many unique to intensive care unit patients. There is a need for prospective studies to define optimal practice in the critically ill.
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