Left ventricular function at rest and during Raynaud's phenomenon in patients with scleroderma

Area of Science:

• Cardiology
• Rheumatology
• Internal Medicine

Background:

• Scleroderma (systemic sclerosis) can affect the heart, leading to symptoms of congestive heart failure.
• Accurate assessment of left ventricular function is critical for appropriate patient management.

Purpose of the Study:

• To evaluate left ventricular systolic and diastolic function in scleroderma patients presenting with heart failure symptoms.
• To determine the utility of clinical signs and chest radiography in assessing cardiac function in this population.

Main Methods:

• M-mode and two-dimensional echocardiography were performed on 10 scleroderma patients.
• Cold pressor testing was used to assess cardiovascular response.
• Left ventricular ejection fraction (LVEF) was analyzed.

Main Results:

• All patients exhibited normal to increased left ventricular systolic function via echocardiography.
• Chest radiographs were not reliable indicators of systolic function; some patients showed congestion despite normal LVEF.
• Left ventricular hypertrophy correlated with worse functional class and increased pulmonary congestion.
• Cold pressor testing induced peripheral Raynaud's phenomenon but did not significantly impair LVEF in most patients.

Conclusions:

• Clinical symptoms and chest X-rays are poor indicators of impaired left ventricular systolic function in scleroderma.
• Diminished diastolic compliance, not systolic dysfunction, may cause heart failure symptoms in some scleroderma patients with hypertrophy.
• Echocardiography or angiography is recommended for evaluating left ventricular systolic function before initiating treatment with inotropic agents.