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Prognostic value of β1 adrenergic receptor autoantibodies for microvascular obstruction in patients with STEMI with
Ning Cao1,2, Wenxi Dang1, Yanguo Xin1,2
1Department of Cardiology, Cardiovascular Centre, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xicheng District, Beijing, 100050, China.
Insights
Beta-1 adrenergic receptor autoantibodies (β1-AA) are linked to microvascular obstruction (MVO) in ST-elevation myocardial infarction (STEMI) patients post-percutaneous coronary intervention (PCI). Combining β1-AA with other biomarkers enhances MVO risk prediction.
Area of Science:
- Cardiology
- Immunology
Background:
- Coronary microvascular obstruction (MVO) is a common complication after percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI), negatively impacting patient prognosis.
- Beta-1 adrenergic receptor autoantibodies (β1-AA) are implicated in cardiovascular diseases, but their specific role in STEMI-related MVO is not well understood.
Purpose of the Study:
- To investigate the association between β1-AA levels and the occurrence of MVO in STEMI patients undergoing primary PCI.
- To evaluate the predictive value of β1-AA, alone and in combination with other biomarkers, for MVO development.
Main Methods:
- A prospective study enrolled 403 STEMI patients who underwent primary PCI.
- Serum β1-AA levels were measured before PCI; MVO was assessed via cardiac MRI 5-7 days post-PCI, categorizing patients into MVO+ (n=127) and MVO- (n=276) groups.
Main Results:
- Patients with MVO exhibited significantly higher β1-AA optical density (OD) compared to those without MVO.
- β1-AA OD, along with pNT-proBNP, pCK-MB, and pTNI, showed a positive association with MVO.
- The combination of β1-AA, pNT-proBNP, and pTNI demonstrated high predictive accuracy for MVO (AUC = 0.87).
Conclusions:
- β1-AA is significantly associated with MVO occurrence in STEMI patients following primary PCI.
- The combined assessment of β1-AA, pNT-proBNP, and pTNI offers an improved and robust strategy for predicting MVO risk.
Backgrounds:
Coronary microvascular obstruction (MVO) frequently occurs in patients with ST-segment elevation myocardial infarction (STEMI) following percutaneous coronary intervention (PCI), leading to poor prognosis. β1 adrenergic receptor autoantibodies (β1-AA) are present in various cardiovascular diseases and correlate with cardiac damage and dysfunction. However, whether β1-AA is associated with the occurrence of MVO in patients with STEMI after PCI remains unclear.
Aims:
To investigate the prognostic relationship between β1-AA and the occurrence of MVO in patients with STEMI with post-PCI.
Methods:
This prospective study included 403 patients with STEMI who underwent primary PCI. The patients were divided into MVO+ and MVO- groups. Serum β1-AA levels were measured prior to primary PCI. The primary outcome was MVO, assessed through cardiac magnetic resonance imaging at 5-7 days after PCI.
Results:
A total of 127 MVO+ and 276 MVO- patients were identified. Patients with MVO + exhibited higher β1-AA optical density (OD) compared to MVO- patients. β1-AA OD, pNT-proBNP, pCK-MB and pTNI were positively associated with MVO following PCI. Notably, the assocition between β1-AA levels and MVO risk strengthened with increasing pNT-proBNP levels. The combination of β1-AA, pNT-proBNP and pTNI yielded the most efficient MVO prediction with an area under the ROC curve of 0.87 (95 % CI: 0.83-0.90).
Conclusions:
β1-AA is significantly associated with the occurrence of MVO in STEMI patients following primary PCI. The combination of β1-AA with pNT-proBNP and pTNI improves predictive accuracy, providing a more robust and effective strategy for assessing MVO risk.
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