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Invasively measured aortic pulse pressure and long-term prognosis in patients undergoing invasive coronary
Hack-Lyoung Kim1, Soonil Kwon, Hyun Sung Joh
1Division of Cardiology, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
Insights
Invasive aortic pulse pressure (aPP) measured during coronary angiography predicts long-term cardiovascular events. Higher aPP indicates increased risk, offering a valuable tool for risk assessment in high-risk patients.
Area of Science:
- Cardiology
- Vascular Medicine
- Clinical Risk Assessment
Background:
- Invasive intra-arterial pressure measurement is the gold standard but not practical for routine use.
- Aortic pulse pressure (aPP) is a potential non-invasive marker, but its prognostic value requires further investigation.
- This study focuses on the prognostic significance of invasively measured aPP in patients undergoing invasive coronary angiography (ICA).
Purpose of the Study:
- To evaluate the prognostic value of invasively measured aortic pulse pressure (aPP).
- To determine if aPP can predict major adverse cardiovascular events (MACE) in patients undergoing invasive coronary angiography (ICA).
- To assess the utility of aPP as a risk stratification tool in a high-risk cardiovascular population.
Main Methods:
- Prospective enrollment of 1110 patients undergoing ICA (mean age 65 years, 35.5% female).
- Aortic pressures were measured invasively using a pigtail catheter just before ICA.
- Major adverse cardiovascular events (MACE) were tracked during a median follow-up of 6.3 years.
Main Results:
- A total of 153 MACE (13.8%) occurred during follow-up.
- Patients with MACE exhibited significantly higher aPP (83.0 ± 25.3 mmHg) compared to those without (62.9 ± 18.1 mmHg; P < 0.001).
- Higher aPP (≥78 mmHg) was linked to increased MACE risk (log-rank P < 0.001), and each 10 mmHg increase in aPP raised MACE risk by 68% (HR 1.68; P < 0.001) after adjustment.
Conclusions:
- Invasively measured aPP is a potent and independent predictor of long-term cardiovascular outcomes in patients undergoing ICA.
- aPP can serve as a valuable addition to existing risk assessment strategies for this patient group.
- These findings highlight the clinical relevance of aPP in managing high-risk cardiovascular patients.
Background:
Although the invasive measurement of intra-arterial pressure is considered the gold standard, it is not feasible for routine clinical practice. This study aimed to investigate the prognostic value of invasively measured aortic pulse pressure (aPP) in patients undergoing invasive coronary angiography (ICA).
Methods:
A total of 1110 patients who underwent ICA (mean age 65 years, 35.5% female) were prospectively enrolled. Just before ICA, aortic pressures were measured using a pigtail catheter positioned 3 cm above the aortic valve. Major adverse cardiovascular events (MACE), a composite of cardiac death, nonfatal acute myocardial infarction, coronary revascularization, and ischemic stroke, were assessed during clinical follow-up after ICA.
Results:
During a median follow-up of 6.3 years (interquartile range, 2.8-8.9 years), there were 153 cases of MACE (13.8%). Patients with MACE had a higher aPP compared to those without MACE (83.0 ± 25.3 vs. 62.9 ± 18.1 mmHg; P < 0.001). Kaplan-Meier survival analysis demonstrated that a higher aPP (≥78 mmHg) was associated with an increased risk of MACE (log-rank P < 0.001). Multiple Cox regression analysis revealed that an increase in aPP by 10 mmHg was significantly associated with a higher risk of MACE, even after adjusting for potential confounders (hazard ratio, 1.68; 95% confidence interval, 1.49-1.82; P < 0.001).
Conclusion:
Invasively measured aPP is a strong and independent predictor of long-term cardiovascular outcomes in patients undergoing ICA. aPP could be a valuable addition to current risk assessment tools in this high-risk population.
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