Primary headache and silent myocardial ischemia in patients with coronary artery disease
Colomba Falcone1, Sara Bozzini, Carmine Gazzaruso
1Interdepartmental Center of Research in Molecular Medicine, University of Pavia, Italy. colomba.falcone@unipv.it
Insights
A history of primary headache in patients with coronary artery disease (CAD) correlates with a higher likelihood of anginal symptoms and a lower chance of silent myocardial ischemia (SMI). Absence of headache in CAD patients may indicate increased SMI risk.
Area of Science:
- Cardiology
- Neurology
- Vascular Medicine
Background:
- The link between migraine and ischemic vascular disease is complex and not fully understood.
- Silent myocardial ischemia (SMI) is a critical indicator of coronary artery disease (CAD).
Purpose of the Study:
- To investigate the correlation between silent myocardial ischemia (SMI) and a history of primary headache.
- To examine this relationship in a large cohort of patients experiencing exercise-induced myocardial ischemia.
Main Methods:
- The study included 1,427 patients with exercise-induced myocardial ischemia and confirmed CAD.
- Patients were categorized into symptomatic (n=918) and asymptomatic (n=509) groups.
Main Results:
- A higher prevalence of primary headache was observed in patients with anginal symptoms during exercise-induced myocardial ischemia (41% vs. 30%).
- Patients experiencing angina pectoris daily also showed a greater prevalence of primary headache (37% vs. 20%).
- Symptomatic patients undergoing percutaneous transluminal coronary angiography or experiencing myocardial infarction had a higher prevalence of primary headache compared to asymptomatic individuals.
Conclusions:
- A history of headache in the CAD population is associated with a higher probability of anginal symptoms and a reduced probability of SMI.
- The absence of headache in patients with CAD risk factors warrants close monitoring due to potentially increased SMI risk and lower pain susceptibility.
Objective:
The mechanisms by which migraine is linked to ischemic vascular disease remain uncertain and are likely to be complex. The aim of this study was to investigate the correlation between silent myocardial ischemia (SMI) and a history of documented primary headache in a large population of patients with exercise-induced myocardial ischemia.
Methods:
The study involved 1,427 consecutive patients (918 symptomatic and 509 asymptomatic patients) with exercise-induced myocardial ischemia and documented coronary artery disease (CAD).
Results:
Patients with anginal symptoms during exercise-induced myocardial ischemia had a significantly higher prevalence of primary headache than those without (41 vs. 30%, p < 0.001). Patients with angina pectoris in daily life also had greater prevalence of primary headache than those without anginal symptoms (37 vs. 20%; p < 0.0001). Symptomatic patients during percutaneous transluminal coronary angiography or myocardial infarction had a greater prevalence of primary headache than asymptomatic patients (p < 0.001 and p = 0.005, respectively).
Conclusions:
Our data suggest that a history of headache in CAD population is correlated to a high probability of anginal symptoms and a decreased probability of SMI. The anamnestic absence of headache requires a close monitoring for patients with risk factors for CAD, because this population seems to have a lower susceptibility to pain and the risk of developing SMI might be increased.
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