ArticleAnaesthesia2026
Associations between persistent postoperative anaemia and mortality 1 year after valvular heart surgery: a retrospective cohort study.
Article in Anaesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionPeri-operative anaemia is a common problem in patients undergoing cardiac surgery. Postoperative anaemia is not well understood relative to pre-operative anaemia; limited data exist on haemoglobin recovery and mortality after discharge, especially in the era of restrictive transfusion practice. We aimed to investigate the associations of pre-operative and persistent postoperative anaemia with 1-year mortality in patients undergoing valvular heart surgery.
methodsWe identified patients who had undergone valvular heart surgery and allocated them to one of four groups based on their pre-operative (haemoglobin ≥ 130 g.l
resultsData from 2486 patients were included. Pre-operative anaemia was diagnosed in 1107 patients (44.5%) and 279 (11.9%) met the diagnostic criteria for persistent anaemia 2 months postoperatively. The overall 1-year mortality rate was 3.3%. The highest rate was observed in the anaemia-anaemia group (17.8%), followed by the non-anaemia-anaemia (13.1%), anaemia-non-anaemia (2.9%) and non-anaemia-non-anaemia (0.5%) groups. Multivariable Cox regression analysis showed that the non-anaemia-anaemia group had the highest risk of 1-year mortality (adjusted hazard ratio 14.44, 95%CI 4.88-42.69), followed by the anaemia-anaemia group (adjusted hazard ratio 10.94, 95%CI 4.41-27.16). DISCUSSION: Our study highlights the high prevalence of persistent anaemia following valvular heart surgery. Persistent anaemia 2 months postoperatively is associated with an increased risk of 1-year mortality.
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