In dilated cardiomyopathy, what is the pattern of ventricular remodeling?

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In dilated cardiomyopathy, what is the pattern of ventricular remodeling?

In dilated cardiomyopathy, the heart undergoes global chamber dilation due to systolic dysfunction, leading to volume overload. The left ventricle dilates to accommodate more blood as contractility falls, which raises end-diastolic pressures. Those elevated pressures back up into the left atrium, and over time the right heart also becomes stressed from increased pulmonary pressures and volume load, causing dilation of the right ventricle and right atrium as well. The result is enlargement and dilation of all four chambers, rather than involvement of a single chamber alone. This contrasts with conditions that selectively affect one chamber or cause thickened walls without dilation.

In dilated cardiomyopathy, the heart undergoes global chamber dilation due to systolic dysfunction, leading to volume overload. The left ventricle dilates to accommodate more blood as contractility falls, which raises end-diastolic pressures. Those elevated pressures back up into the left atrium, and over time the right heart also becomes stressed from increased pulmonary pressures and volume load, causing dilation of the right ventricle and right atrium as well. The result is enlargement and dilation of all four chambers, rather than involvement of a single chamber alone. This contrasts with conditions that selectively affect one chamber or cause thickened walls without dilation.

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