ArticleInterdisciplinary cardiovascular and thoracic surgery2025
Effect of patent complete revascularization on myocardium with persistent perfusion defects in preoperative single-photon emission computed tomography.
Article in Interdisciplinary cardiovascular and thoracic surgery, 2025. 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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Who cites it
1 citing paper in PubMed.
- Multimodality Cardiovascular Imaging in Patients After Coronary Artery Bypass Grafting: Diagnosis and Risk Stratification.Diagnostics (Basel, Switzerland) · 2025Review
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4 authors.
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Abstract
objectivesThis study aimed to evaluate the changes in perfusion assessed by myocardial single-photon emission computed tomography after coronary artery bypass grafting (CABG) and to examine the myocardial segments with persistent perfusion defect preoperatively in patients who underwent CABG and who had all patent grafts 1 year postoperatively.
methodsPatients who underwent complete revascularization, who were assessed by preoperative and postoperative 3- and 12-month myocardial single photon emission computed tomography, and who showed all patent grafts on angiograms taken 1 year postoperatively were included. Myocardial single-photon emission computed tomography imaging was performed during stress and rest, and a 17-segment model was adopted for regional analysis of the perfusion defect. Myocardial segments were analysed based on a 5-point scale (0-4). After excluding the segments with normal stress scores, the difference scores (DSs) of the segments with impaired stress perfusion were calculated. The segments were divided into group P (DS ≤1) and group R (DS ≥2).
resultsOf 2057 myocardial segments from 120 patients, a total of 761 segments [segment group P (n = 572) vs segment group R (n = 189)] with impaired stress perfusion were included in the final analyses. The stress scores tended to decrease in both groups after the operation, although the changes in the stress perfusion scores over time were more significant in group R than in group P. The differences in the rest scores between groups P and R tended to decrease during postoperative year 1. Although the preoperative DSs were significantly lower in group P than in group R, the differences between the groups became insignificant during postoperative year 1.
conclusionsComplete revascularization including myocardium with persistent perfusion defect should be considered when performing CABG.
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