Relation between shortness of breath, left ventricular end diastolic pressure and severity of coronary artery disease

Area of Science:

• Cardiology
• Internal Medicine
• Physiology

Background:

• Shortness of breath is a common symptom with various causes.
• Assessing the cardiac origins of dyspnea is crucial for accurate diagnosis.
• Diastolic dysfunction can cause symptoms even with preserved systolic function.

Purpose of the Study:

• To investigate the relationship between shortness of breath and left ventricular end-diastolic pressure (LVEDP).
• To explore the association between dyspnea and coronary artery disease (CAD) severity.
• To determine if shortness of breath indicates diastolic dysfunction in patients with normal systolic function.

Main Methods:

• Evaluated 146 patients with normal left ventricular systolic performance.
• Excluded patients with lung disease, cardiomyopathy, prior myocardial infarction, uncontrolled hypertension, or unstable angina.
• Assessed the correlation between shortness of breath, LVEDP, and CAD severity.

Main Results:

• A strong relationship was observed between shortness of breath and elevated LVEDP.
• A borderline relationship was found between shortness of breath and the severity of coronary artery disease.
• No patients had significant comorbidities that could explain their symptoms.

Conclusions:

• In selected patients with normal systolic function, shortness of breath is a significant indicator of elevated LVEDP.
• Shortness of breath may represent a clinical manifestation of diastolic dysfunction.
• Further investigation into diastolic function is warranted in patients presenting with dyspnea and preserved ejection fraction.