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Related Experiment Videos

Acromegalic cardiopathy: a left ventricular scintigraphic study

N Sicolo1, F Bui, M Sicolo

  • 1Cattedra di Endocrinologia, Università di Padova, Italy.

Journal of Endocrinological Investigation
|February 1, 1993
PubMed
Summary
This summary is machine-generated.

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Acromegaly impairs heart diastolic function, specifically ventricular relaxation, due to excess growth hormone (GH). Systolic contractility remains unaffected in patients with acromegalic cardiomyopathy.

Area of Science:

  • Cardiology
  • Endocrinology
  • Internal Medicine

Background:

  • Acromegaly, caused by excess growth hormone (GH), can lead to cardiac complications.
  • Acromegalic cardiomyopathy is a recognized concern in patients with this endocrine disorder.

Purpose of the Study:

  • To investigate cardiac function in acromegalic patients.
  • To differentiate between systolic and diastolic function impairments in acromegaly.

Main Methods:

  • Gated radionuclide ventriculography was employed.
  • Cardiac function was assessed in 18 acromegalic patients and 21 healthy controls.

Main Results:

  • Ejection Fraction (EF), a measure of systolic function, showed no significant difference between groups.

Related Experiment Videos

  • Peak Filling Rate (PFR) was significantly reduced in acromegalic patients.
  • Time to Peak Filling Rate (TPFR) was significantly prolonged in acromegalic patients, indicating diastolic dysfunction.

    • Conclusions:

    • Chronic GH hypersecretion in acromegaly primarily affects diastolic function, impairing ventricular relaxation.
    • Systolic function (contractility) appears preserved in acromegaly.
    • Early detection of diastolic dysfunction is crucial for managing acromegalic cardiomyopathy.