[Heart involvement in mixed connective tissue disease (MCTD)]

Area of Science:

• Cardiology
• Rheumatology
• Internal Medicine

Background:

• Mixed connective tissue disease (MCTD) is an autoimmune disorder with overlapping features of systemic lupus erythematosus, systemic sclerosis, and polymyositis.
• Cardiac involvement can occur in MCTD, but its specific manifestations and prevalence are not fully characterized.

Purpose of the Study:

• To investigate the incidence and types of cardiac involvement in patients with mixed connective tissue disease (MCTD).
• To determine the prevalence of pericardial, valvular, and myocardial abnormalities in an MCTD cohort.

Main Methods:

• Two-dimensional echocardiography was utilized to assess cardiac structures and function.
• A cohort of patients diagnosed with MCTD underwent comprehensive echocardiographic examinations.

Main Results:

• Pericardial involvement was identified in two patients.
• Mitral valve prolapse (MVP) was a frequent finding, detected in 61% of the patients.
• Myocardial changes were observed infrequently in the study population.

Conclusions:

• Mitral valve prolapse appears to be a significant and specific cardiac manifestation in mixed connective tissue disease.
• Echocardiography is a valuable tool for detecting cardiac involvement in MCTD patients.
• Further research is warranted to understand the long-term implications of cardiac findings in MCTD.