Factors associated with excessive bleeding in cardiopulmonary bypass patients: a nested case-control study
2007

Factors Associated with Excessive Bleeding in Heart Surgery Patients

Sample size: 26 publication Evidence: moderate

Author Information

Author(s): Jimenez Rivera Juan J, Iribarren Jose L, Raya Jose M, Nassar Ibrahim, Lorente Leonardo, Perez Rosalia, Brouard Maitane, Lorenzo Jose M, Garrido Pilar, Barrios Ysamar, Diaz Maribel, Alarco Blas, Martinez Rafael, Mora Maria L

Primary Institution: University Hospital of Canary Islands

Hypothesis

What clinical and genetic factors are associated with excessive bleeding after cardiopulmonary bypass?

Conclusion

Excessive postoperative bleeding in cardiopulmonary bypass patients was linked to lower body mass index and specific surgical factors.

Supporting Evidence

  • 50% of patients experienced excessive bleeding after surgery.
  • Lower body mass index was associated with higher rates of excessive bleeding.
  • Patients with lower preoperative levels of plasminogen activator inhibitor-1 had more bleeding.
  • Internal mammary artery grafts were linked to increased bleeding.
  • Lower body temperatures during surgery were associated with excessive bleeding.

Takeaway

Some heart surgery patients bleed a lot after their operation, and this can be related to their weight and the type of surgery they had.

Methodology

A nested case-control study was conducted analyzing clinical and genetic factors in patients who did not receive antifibrinolytic prophylaxis.

Limitations

The study had a small sample size, which may limit the generalizability of the findings.

Participant Demographics

Caucasian patients undergoing elective cardiopulmonary bypass surgery.

Statistical Information

P-Value

P = 0.03, P = 0.01, P = 0.037, P = 0.029, P = 0.03, P = 0.02, P = 0.007

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1749-8090-2-17

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