ArticleEuropean journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery2023
Association of body mass index with 30-day mortality and red blood cell transfusions in open heart surgery.
Article in European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
4 citing papers in PubMed, 4 citations in OpenAlex.
- Weighing the Risks: The Impact of Body Mass Index on Outcomes After Frozen Elephant Trunk Aortic Arch Repair.Medicina (Kaunas, Lithuania) · 2026Article
- Red blood cell mass as a predictor of transfusion risk of packed red blood cells in cardiac surgery patients requiring cardiopulmonary bypass.Surgery in practice and science · 2025Article
- Minimally invasive aortic valve replacement in morbidly obese patients: outcomes from a cohort study and pooled data analysis.Frontiers in cardiovascular medicine · 2025Article
- Association of body mass index with perioperative blood transfusion and short-term clinical outcomes in patients undergoing isolated coronary artery bypass grafting.BMC anesthesiology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesObesity is associated with increased burden of cardiovascular risk factors, morbidity and mortality. However, several studies have counterintuitively shown better outcome after cardiac surgery in obese than in normal weight patients, a phenomenon known as obesity paradox. Furthermore, obesity has been linked with decreased need of red blood cell (RBC) transfusions. The purpose of this study was to evaluate the impact of body mass index (BMI) on 30-day mortality and RBC transfusions in patients undergoing cardiac surgery, a clinically important topic with conflicting previous data.
methodsWe retrospectively investigated 1691 patients who underwent coronary and/or valve or aortic root surgery using cardiopulmonary bypass between 2013 and 2016. The patients were categorized by BMI based on the World Health Organization classification. For analysis, logistic regression was used with adjustment for potential confounding factors.
resultsOf the patients, 28.7% were normal weight, 43.3% overweight, 20.5% mildly obese and 7.5% severely obese. Thirty-day mortality was 1.9% without significant differences between the BMI groups. 41.0% of patients received RBC transfusion. Overweight [odds ratio (OR) 0.75, 95% confidence interval (CI) 0.56-0.99, P = 0.045], mildly (OR 0.65, 95% CI 0.46-0.92, P = 0.016) and severely obese (OR 0.41, 95% CI 0.24-0.70, P = 0.001) patients needed less frequently RBC transfusions than patients with normal weight.
conclusionsObesity was not associated with 30-day mortality but was associated with lower use of RBC transfusions in cardiac surgery.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.