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Does financial hardship associate with abnormal quantitative myocardial perfusion and major adverse cardiovascular
Danai Kitkungvan1,2, Nils P Johnson1,2, Linh Bui1,2
1Division of Cardiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
Insights
Financial hardship in patients undergoing cardiac PET scans is linked to abnormal heart imaging and major adverse cardiovascular events (MACE). This association suggests financial strain impacts heart health beyond traditional risk factors, necessitating targeted interventions.
Area of Science:
- Cardiology
- Health Economics
- Public Health
Background:
- Limited data exist on the impact of financial hardship on coronary artery disease (CAD).
- Understanding this relationship is crucial for comprehensive patient care and risk stratification.
Purpose of the Study:
- To investigate the association between financial hardship and outcomes in patients referred for cardiac positron emission tomography (PET).
- To determine if financial hardship independently predicts abnormal cardiac PET findings and major adverse cardiovascular events (MACE).
Main Methods:
- A cohort of 4173 patients undergoing clinical rest/stress cardiac PET was analyzed.
- Financial hardship was defined as inability to pay out-of-pocket expenses for the PET scan.
- Outcomes included abnormal cardiac PET (perfusion defects or reduced coronary flow reserve) and MACE (mortality, myocardial infarction, revascularization).
Main Results:
- 12.1% of patients (504) reported financial hardship.
- Financial hardship was independently associated with abnormal cardiac PET (OR 1.377, p=0.004) and MACE (HR 1.432, p=0.010).
- The association of financial hardship with MACE was primarily direct, with minimal mediation by abnormal PET or known CAD.
Conclusions:
- Financial hardship is an independent predictor of myocardial perfusion abnormalities and MACE in patients referred for cardiac PET.
- The impact of financial hardship on cardiovascular events extends beyond traditional risk factors and CAD severity.
- Medical insurance does not fully mitigate financial hardship's impact; preventive strategies are needed.
Background:
Data on impact of financial hardship on coronary artery disease (CAD) remain incomplete.
Methods:
Consecutive subjects referred for clinical rest/stress cardiac positron emission tomography (PET) were enrolled. Financial hardship is defined as patients' inability to pay for their out-of-pocket expense for cardiac PET. Abnormal cardiac PET is defined as at least moderate relative perfusion defects at stress involving > 10% of the left ventricle or global coronary flow reserve ≤ 2.0. Patients were followed for major adverse cardiovascular event (MACE) comprised of all-cause mortality, non-fatal myocardial infarction, and late coronary revascularization.
Results:
We analyzed a total of 4173 patients with mean age 65.6 ± 11.3 years, 72.2% men, and 93.6% reported as having medical insurance. Of these, 504 (12.1%) patients had financial hardship. On multivariable analysis, financial hardship associated with abnormal cardiac PET (odds ratio 1.377, p = 0.004) and MACE (hazard ratio 1.432, p = 0.010) and its association with MACE was mostly through direct effect with small proportion mediated by abnormal cardiac PET or known CAD.
Conclusion:
Among patients referred for cardiac rest/stress PET, financial hardship independently associates with myocardial perfusion abnormalities and MACE; however, its effect on MACE is largely not mediated by abnormal myocardial perfusion or known CAD suggesting distinct impact of financial hardship beyond traditional risk factors and CAD that deserves attention and intervention to effectively reduced adverse outcomes. Having medical insurance does not consistently protect from financial hardship and a more preventive-oriented restructuring may provide better outcomes at lower cost.
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