[Central and pulmonary hemodynamics in patients with various forms of ischemic heart disease]

Area of Science:

• Cardiology
• Cardiovascular Physiology
• Echocardiography

Background:

• Coronary heart disease (CHD) significantly impacts cardiac function.
• Understanding the interplay between left ventricular function, pulmonary hemodynamics, and right cardiac adaptation is crucial for managing CHD.
• Morphofunctional classification of CHD may reveal distinct hemodynamic profiles.

Purpose of the Study:

• To investigate right cardiac and pulmonary hemodynamics in patients with different types of coronary heart disease (CHD).
• To correlate hemodynamic findings with left ventricular morphofunctional groups in CHD patients.
• To elucidate the relationship between left ventricular dysfunction and pulmonary hypertension in various CHD subtypes.

Main Methods:

• Utilized two-dimensional and Doppler echocardiography.
• Assessed right cardiac and pulmonary hemodynamics.
• Classified patients into three morphofunctional groups based on left ventricular volume/mass index.

Main Results:

• All CHD patients demonstrated reduced left ventricular contractility and pump function.
• Moderately elevated pulmonary pressure and compensatory right cardiac hyperfunction were observed across groups.
• Hypertrophic morphofunctional CHD showed pronounced right cardiac hyperfunction.
• Pulmonary hypertension severity correlated with left ventricular pump dysfunction severity.
• In dilated CHD, pulmonary hypertension was linked to disturbed left ventricular contractility.

Conclusions:

• Left ventricular dysfunction in CHD is associated with significant pulmonary hypertension and right heart compensatory responses.
• The specific pattern of hemodynamic alterations differs based on the morphofunctional classification of CHD.
• Echocardiography is effective in characterizing these complex hemodynamic changes in CHD.