Journal article
Thrombocytopenia After Cardiopulmonary Bypass Is Associated With Increased Morbidity and Mortality
The Annals of thoracic surgery, Vol.110(1), pp.50-57
07/2020
DOI: 10.1016/j.athoracsur.2019.10.039
PMCID: PMC7279614
PMID: 31816284
Abstract
Thrombocytopenia is a risk factor for morbidity and mortality in critically ill patients, and is common after cardiopulmonary bypass (CPB). In this study, we evaluate whether thrombocytopenia after CPB is an independent risk factor for postoperative morbidity and mortality.
We retrospectively evaluated 1364 patients requiring CPB at the University of Colorado Hospital between January 2011 and May 2016. Platelet nadir, absolute change in platelets, and percent change in platelets were modeled as continuous variables. Patients with postoperative thrombocytopenia (defined a nadir <75 × 10
/μL within 72 hours) were also compared with patients without thrombocytopenia in a propensity-matched model. The primary outcome was in-hospital mortality, and secondary outcomes included postoperative infection, postoperative acute kidney injury (AKI), postoperative stroke, and prolonged intensive care unit (ICU) and hospital lengths of stay (LOS).
Postoperative thrombocytopenia occurred in 356 (26.0%) patients. In multivariable analysis, platelet nadir was significantly inversely associated with mortality (odds ratio [OR], 0.955; 95% confidence interval [CI], 0.934-0.975; P < .001), postoperative infection (OR, 0.992; 95% CI, 0.986-0.999; P = .03), AKI (all stage) (OR, 0.993; 95% CI, 0.988-0.998; P = .01), AKI (stage 3) (OR, 0.966; 95% CI, 0.951-0.982; P < .001), postoperative stroke (OR, 0.974; 95% CI, 0.956-0.992; P = .006), prolonged ICU stay (OR, 0.986; 95% CI, 0.981-0.991; P < .001), and hospital LOS (OR, 0.998; 95% CI, 0.997-0.999; P = .001). Percent change in platelets from baseline was also significantly associated with all primary and secondary outcomes.
Postoperative thrombocytopenia is independently associated with postoperative mortality, AKI, infection, stroke, and prolonged ICU and hospital LOS. Serial platelet monitoring may help identify patients at higher risk of postoperative complications. Further studies investigating strategies to reduce postoperative thrombocytopenia, including reducing CPB time, are needed.
Details
- Title: Subtitle
- Thrombocytopenia After Cardiopulmonary Bypass Is Associated With Increased Morbidity and Mortality
- Creators
- Benjamin R Griffin - University of IowaMichael Bronsert - Outcomes Research ConsortiumT Brett Reece - University of Colorado Anschutz Medical CampusJay D Pal - University of Colorado Anschutz Medical CampusJoseph C Cleveland - University of Colorado Anschutz Medical CampusDavid A Fullerton - University of Colorado Anschutz Medical CampusKatja M Gist - Children's Hospital ColoradoAnna Jovanovich - Denver VA Medical CenterDiana Jalal - University of IowaSarah Faubel - University of Colorado Anschutz Medical CampusMuhammad Aftab
- Resource Type
- Journal article
- Publication Details
- The Annals of thoracic surgery, Vol.110(1), pp.50-57
- DOI
- 10.1016/j.athoracsur.2019.10.039
- PMID
- 31816284
- PMCID
- PMC7279614
- ISSN
- 0003-4975
- eISSN
- 1552-6259
- Grant note
- T32 DK007135 / NIDDK NIH HHS
- Language
- English
- Date published
- 07/2020
- Academic Unit
- Nephrology; Internal Medicine
- Record Identifier
- 9984359956102771
Metrics
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