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Erschienen in: Herz 4/2023

05.09.2022 | Original articles

Relationship between platelet mass index and postoperative atrial fibrillation after elective coronary artery bypass surgery: a retrospective study

verfasst von: Ozge Guzelburc, MD, Ahmet Zengin, MD, Mehmet Baran Karatas, MD, Sevinc Bayer Erdogan, MD, Prof. Ayse Emre

Erschienen in: Herz | Ausgabe 4/2023

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Abstract

Background

Atrial fibrillation (AF) is the most common complication after cardiac surgery. The pathogenesis of postoperative atrial fibrillation (POAF) is multifactorial and one of the known factors is inflammation. Platelet mass index (PMI) is an indicator of platelet activation and a better inflammatory marker than mean platelet volume (MPV). In this retrospective study, we investigated the relationship between POAF and PMI.

Methods

The study included 848 consecutive patients (655 male and 193 female) who had elective isolated coronary artery by-pass grafting (CABG) or combined CABG and valvular surgery. Platelet count and MPV were measured from preoperative blood samples to calculate PMI. Post-operative atrial fibrillation was defined as irregular and fibrillatory P waves occurring 48–96 h after cardiac surgery and lasting at least 30 s. The PMI values in patients who developed POAF were compared with those in patients who did not develop POAF.

Results

Patients who developed POAF had higher PMI values (2549.3 ± 1077.1) when compared with patients in sinus rhythm (2248.1 ± 683.4; p < 0.01). In multivariate regression analysis, age (OR: 1.05; 95% CI: 1.02–1.09; p = 0.01), left atrial diameter (OR: 1.05; 95% CI: 1.03–1.09; p = 0.02), hs-CRP (OR: 1.09; 95%CI: 1.05–1.13; p < 0.01), EuroSCORE II (OR: 1.27; 95% CI: 1.14–1.41; p < 0.01), and PMI (OR: 1.01; 95% CI: 1.001–1.02; p < 0.01) were independent predictors of POAF. In ROC analysis, PMI ≥ 2286 predicted POAF development with a sensitivity of 69% and a specificity of 58% (AUC: 0.66; p < 0.01)

Conclusion

A significant relationship was found between preoperatively calculated PMI and POAF. We showed that PMI may be used to predict patients who are at high risk of developing POAF.
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Metadaten
Titel
Relationship between platelet mass index and postoperative atrial fibrillation after elective coronary artery bypass surgery: a retrospective study
verfasst von
Ozge Guzelburc, MD
Ahmet Zengin, MD
Mehmet Baran Karatas, MD
Sevinc Bayer Erdogan, MD
Prof. Ayse Emre
Publikationsdatum
05.09.2022
Verlag
Springer Medizin
Erschienen in
Herz / Ausgabe 4/2023
Print ISSN: 0340-9937
Elektronische ISSN: 1615-6692
DOI
https://doi.org/10.1007/s00059-022-05136-4

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