Additionally, no studies have been conducted to delineate when to transfuse patients with chronic GI blood loss. Studies of patients with an acute GI bleed and cardiovascular disease have shown an increase in mortality, but it is unknown if the use of specific transfusion triggers affects outcomes in this group.
In patients with GI bleeding, experts feel the use of red blood cells should be guided by available evidence. For patients without cardiac disease, red blood cell transfusion is rarely required following definitive treatment and cessation of blood loss unless the hemoglobin is <7.0 g/dL.22
Back to the Case
The patient described in our case should not be transfused unless he has clinical signs or symptoms of tissue hypoxemia. An appropriate workup for his anemia should be initiated and, if an etiology identified, definitive treatment or intervention applied.
Bottom Line
Unless there are clinical signs of tissue hypoxia, symptomatic anemia, or a hemoglobin of <7.0 g/dL, red blood cell transfusion is not recommended, unless the patient has active ACS or significant underlying coronary disease. TH
Dr. Dressler is associate program director, assistant professor of medicine, Division of General Internal Medicine, Emory University Hospital, Atlanta. Dr. VanderEnde is assistant professor of medicine, Division of General Internal Medicine, Emory University Hospital, Atlanta.
References
1. Welch HG, Meehan KR, Goodnough LT. Prudent strategies for elective red blood cell transfusion. Ann Intern Med. 1992;116(5):393-402.
2. Tartter PI, Barron DM. Unnecessary blood transfusions in elective colorectal cancer surgery. Transfusion. 1985;25(2):113-115.
3. Saxena S, Weiner JM, Rabinowitz A, Fridey J, Shulman IA, Carmel R. Transfusion practice in medical patients. Arch Int Med. 1993;153(22):2575-80.
4. Palermo G, Bove J, Katz AJ. Patterns of blood use in Connecticut. Transfusion. 1980;20(6):704-710.
5. Carson JL, Reynolds RC. In search of the transfusion threshold. Hematology. 2005;10(Suppl 1):86-88.
6. Walker RH. Special report: transfusion risks. Am J Clin Pathol. 1987;88(3):374-378.
7. Blajchman MA, Vamvakas EC. The continuing risk of transfusion-transmitted infections. N Engl J Med. 2006;355(13):1303-1305.
8. Spiess BD. Risks of transfusion: outcome focus. Transfusion. 2004;44(Suppl 12):4S-14S.
9. Salem-Schatz SR, Avorn J, Soumerai SB. Influence of clinical knowledge, organizational context, and practice style on transfusion decision-making. JAMA. 1990;264(4):476-483.
10. Wilson K, MacDougall L, Fergusson D, Graham I, Tinmouth A, Hebert PC. The effectiveness of interventions to reduce physician’s levels of inappropriate transfusion: what can be learned from a systematic review of the literature. Transfusion. 2002;42(9):1224-1229.
11. Carson JL, Duff A, Poses RM, et al. Effect of anemia and cardiovascular disease on surgical mortality and morbidity. Lancet. 1996;348(9034):1055-1060.
12. Marik PE, Corwin HL. Efficacy of red blood cell transfusion in the critically ill: a systematic review of the literature. Crit Care Med. 2008;36(9):2667-2674.
13. Raghavan M, Marik PE. Anemia, allogenic blood transfusion, and immunomodulation in the critically ill. Chest. 2005;127(1):295-307.
14. Hebert PC, Wells G, Blajchman MA, et al. A multicenter, randomized, controlled clinical trial of transfusion requirements in critical care. Transfusion requirements in critical care investigators, Canadian critical care trials group. N Engl J Med. 1999;340(6):409-417.
15. Carson JL, Hill S, Carless P, Hebert P, Henry D. Transfusion triggers: a systematic review of the literature. Transfus Med Rev. 2002;16(3):187-199.
16. Sabatine MS, Morrow DA, Giugliano RP, et al. Association of hemoglobin levels with clinical outcomes in acute coronary syndromes. Circulation. 2005; 111(16):2042-2049.
Should you transfuse a patient when their hemoglobin is at 6.0