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Acromegaly, the systolic click syndrome, and group D streptococcal endocarditis
Insights
A patient with acromegaly developed a heart murmur linked to high growth hormone levels. Later, endocarditis caused mitral regurgitation, which remained stable despite fluctuating hormone levels.
Area of Science:
- Cardiology
- Endocrinology
- Internal Medicine
Background:
- Acromegaly is a hormonal disorder characterized by excessive growth hormone (GH) production.
- Cardiac complications are common in acromegaly, including valvular heart disease.
- The relationship between GH levels and specific cardiac syndromes requires further elucidation.
Observation:
- A patient with acromegaly presented with an apical systolic click and late systolic murmur over three months.
- Growth hormone levels were noted to be highest during this symptomatic period.
- The patient subsequently developed group D streptococcal endocarditis.
Findings:
- The endocarditis led to cerebral embolism and free mitral regurgitation due to ruptured chordae tendineae.
- Over an 18-month follow-up, neither GH levels nor the severity of mitral regurgitation showed significant changes.
- This suggests a potential dissociation between acute hormonal fluctuations and chronic valvular damage progression.
Implications:
- This case highlights a potential cardiac manifestation associated with elevated growth hormone in acromegaly.
- It underscores the complex interplay between endocrine disorders and cardiovascular health.
- Further research is warranted to understand the long-term cardiac implications of acromegaly and its treatment.
Abstract:
A syndrome consisting of an apical systolic click and late systolic murmur appeared over a period of three months in a patient with acromegaly. Levels of growth hormone were highest during this interval. As a result of group D streptococcal endocarditis three months later, the patient sustained cerebral embolism and acquired free mitral regurgitation from ruptured chordae tendineae. During follow-up over 18 months, neither the level of growth hormone nor the degree of mitral regurgitation changed significantly.