Perioperative blood transfusion and postoperative mortality

Jeffrey L. Carson, Amy Duff, Jesse A. Berlin, Valerie A. Lawrence, Roy M. Poses, Elizabeth C. Huber, Dorene A. O'Hara, Helaine Noveck, Brian L. Strom

Research output: Contribution to journalArticle

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Abstract

Context. - The risks of blood transfusion have been studied extensively but the benefits and the hemoglobin concentration at which patients should receive a transfusion have not. Objective. - To determine the effect of perioperative transfusion on 30- and 90-day postoperative mortality. Design. - Retrospective cohort study. Setting. - A total of 20 US hospitals between 1983 and 1993. Participants. - A total of 8787 consecutive hip fracture patients, aged 60 years or older, who underwent surgical repair. Main Outcome Measures. - Primary outcome was 30-day postoperative mortality; secondary outcome was 90-day postoperative mortality. The 'trigger' hemoglobin level was defined as the lowest hemoglobin level prior to the first transfusion during the time period or, for patients in the nontranfused group, as the lowest hemoglobin level during the time period. Results. - Overall 30-day mortality was 4.6% (n=402; 95% confidence interval [CI], 4.1%-5.0%); overall 90-day mortality was 9.0% (n =788; 95% Cl, 8.4%-9.6%). A total of 42% of patients (n=3699) received a postoperative transfusion. Among patients with trigger hemoglobin levels between 80 and 100 g/L (8.0 and 10.0 g/dL), 55.6% received a transfusion, while 90.5% of patients with hemoglobin levels less than 80 g/L (8.0 g/dL) received postoperative transfusions. Postoperative transfusion did not influence 30- or 90-day mortality after adjusting for trigger hemoglobin level, cardiovascular disease, and other risk factors for death: for 30-day mortality, the adjusted odds ratio (OR) was 0.96 (95% Cl, 0.74-1.26); for 90-day mortality, the adjusted hazard ratio was 1.08 (95% Cl, 0.90-1.29). Similarly, 30-day mortality after surgery did not differ between those who received a preoperative transfusion and those who did not (adjusted OR, 1.23; 95% Cl, 0.81-1.89). Conclusions. - Perioperative transfusion in patients with hemoglobin levels 80 g/L (8.0 g/dL) or higher did not appear to influence the risk of 30- or 90-day mortality in this elderly population. At hemoglobin concentrations of less than 80 g/L (8.0 g/dL), 90.5% of patients received a transfusion, precluding further analysis of the association of transfusion and mortality.

Original languageEnglish (US)
Pages (from-to)199-205
Number of pages7
JournalJournal of the American Medical Association
Volume279
Issue number3
DOIs
StatePublished - Jan 21 1998
Externally publishedYes

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Blood Transfusion
Hemoglobins
Mortality
Odds Ratio
Hip Fractures
Cohort Studies
Cardiovascular Diseases
Retrospective Studies
Outcome Assessment (Health Care)
Confidence Intervals

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Carson, J. L., Duff, A., Berlin, J. A., Lawrence, V. A., Poses, R. M., Huber, E. C., ... Strom, B. L. (1998). Perioperative blood transfusion and postoperative mortality. Journal of the American Medical Association, 279(3), 199-205. https://doi.org/10.1001/jama.279.3.199

Perioperative blood transfusion and postoperative mortality. / Carson, Jeffrey L.; Duff, Amy; Berlin, Jesse A.; Lawrence, Valerie A.; Poses, Roy M.; Huber, Elizabeth C.; O'Hara, Dorene A.; Noveck, Helaine; Strom, Brian L.

In: Journal of the American Medical Association, Vol. 279, No. 3, 21.01.1998, p. 199-205.

Research output: Contribution to journalArticle

Carson, JL, Duff, A, Berlin, JA, Lawrence, VA, Poses, RM, Huber, EC, O'Hara, DA, Noveck, H & Strom, BL 1998, 'Perioperative blood transfusion and postoperative mortality', Journal of the American Medical Association, vol. 279, no. 3, pp. 199-205. https://doi.org/10.1001/jama.279.3.199
Carson JL, Duff A, Berlin JA, Lawrence VA, Poses RM, Huber EC et al. Perioperative blood transfusion and postoperative mortality. Journal of the American Medical Association. 1998 Jan 21;279(3):199-205. https://doi.org/10.1001/jama.279.3.199
Carson, Jeffrey L. ; Duff, Amy ; Berlin, Jesse A. ; Lawrence, Valerie A. ; Poses, Roy M. ; Huber, Elizabeth C. ; O'Hara, Dorene A. ; Noveck, Helaine ; Strom, Brian L. / Perioperative blood transfusion and postoperative mortality. In: Journal of the American Medical Association. 1998 ; Vol. 279, No. 3. pp. 199-205.
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abstract = "Context. - The risks of blood transfusion have been studied extensively but the benefits and the hemoglobin concentration at which patients should receive a transfusion have not. Objective. - To determine the effect of perioperative transfusion on 30- and 90-day postoperative mortality. Design. - Retrospective cohort study. Setting. - A total of 20 US hospitals between 1983 and 1993. Participants. - A total of 8787 consecutive hip fracture patients, aged 60 years or older, who underwent surgical repair. Main Outcome Measures. - Primary outcome was 30-day postoperative mortality; secondary outcome was 90-day postoperative mortality. The 'trigger' hemoglobin level was defined as the lowest hemoglobin level prior to the first transfusion during the time period or, for patients in the nontranfused group, as the lowest hemoglobin level during the time period. Results. - Overall 30-day mortality was 4.6{\%} (n=402; 95{\%} confidence interval [CI], 4.1{\%}-5.0{\%}); overall 90-day mortality was 9.0{\%} (n =788; 95{\%} Cl, 8.4{\%}-9.6{\%}). A total of 42{\%} of patients (n=3699) received a postoperative transfusion. Among patients with trigger hemoglobin levels between 80 and 100 g/L (8.0 and 10.0 g/dL), 55.6{\%} received a transfusion, while 90.5{\%} of patients with hemoglobin levels less than 80 g/L (8.0 g/dL) received postoperative transfusions. Postoperative transfusion did not influence 30- or 90-day mortality after adjusting for trigger hemoglobin level, cardiovascular disease, and other risk factors for death: for 30-day mortality, the adjusted odds ratio (OR) was 0.96 (95{\%} Cl, 0.74-1.26); for 90-day mortality, the adjusted hazard ratio was 1.08 (95{\%} Cl, 0.90-1.29). Similarly, 30-day mortality after surgery did not differ between those who received a preoperative transfusion and those who did not (adjusted OR, 1.23; 95{\%} Cl, 0.81-1.89). Conclusions. - Perioperative transfusion in patients with hemoglobin levels 80 g/L (8.0 g/dL) or higher did not appear to influence the risk of 30- or 90-day mortality in this elderly population. At hemoglobin concentrations of less than 80 g/L (8.0 g/dL), 90.5{\%} of patients received a transfusion, precluding further analysis of the association of transfusion and mortality.",
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AU - Duff, Amy

AU - Berlin, Jesse A.

AU - Lawrence, Valerie A.

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AU - Huber, Elizabeth C.

AU - O'Hara, Dorene A.

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N2 - Context. - The risks of blood transfusion have been studied extensively but the benefits and the hemoglobin concentration at which patients should receive a transfusion have not. Objective. - To determine the effect of perioperative transfusion on 30- and 90-day postoperative mortality. Design. - Retrospective cohort study. Setting. - A total of 20 US hospitals between 1983 and 1993. Participants. - A total of 8787 consecutive hip fracture patients, aged 60 years or older, who underwent surgical repair. Main Outcome Measures. - Primary outcome was 30-day postoperative mortality; secondary outcome was 90-day postoperative mortality. The 'trigger' hemoglobin level was defined as the lowest hemoglobin level prior to the first transfusion during the time period or, for patients in the nontranfused group, as the lowest hemoglobin level during the time period. Results. - Overall 30-day mortality was 4.6% (n=402; 95% confidence interval [CI], 4.1%-5.0%); overall 90-day mortality was 9.0% (n =788; 95% Cl, 8.4%-9.6%). A total of 42% of patients (n=3699) received a postoperative transfusion. Among patients with trigger hemoglobin levels between 80 and 100 g/L (8.0 and 10.0 g/dL), 55.6% received a transfusion, while 90.5% of patients with hemoglobin levels less than 80 g/L (8.0 g/dL) received postoperative transfusions. Postoperative transfusion did not influence 30- or 90-day mortality after adjusting for trigger hemoglobin level, cardiovascular disease, and other risk factors for death: for 30-day mortality, the adjusted odds ratio (OR) was 0.96 (95% Cl, 0.74-1.26); for 90-day mortality, the adjusted hazard ratio was 1.08 (95% Cl, 0.90-1.29). Similarly, 30-day mortality after surgery did not differ between those who received a preoperative transfusion and those who did not (adjusted OR, 1.23; 95% Cl, 0.81-1.89). Conclusions. - Perioperative transfusion in patients with hemoglobin levels 80 g/L (8.0 g/dL) or higher did not appear to influence the risk of 30- or 90-day mortality in this elderly population. At hemoglobin concentrations of less than 80 g/L (8.0 g/dL), 90.5% of patients received a transfusion, precluding further analysis of the association of transfusion and mortality.

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