Cardiovascular changes in hyperthyroidisim:
🌟Increased resting heart rate
🌟Increased cardiac output
🌟Increased myocardial oxygen demand
🌟Decreased systemic vascular
resistances
🌟Systolic hypertension
🌟Peripheral oedema
🌟Congestive cardiac failure
(This seems paradoxical given the increased cardiac contractility and increased cardiac output
🌟Graves’ and Hashimoto’s diseases may be associated with an increased prevalence of mitral valve prolapse
🌟Angina (can develop in
persons with with normal coronary arteries)
Coronary artery vasospasm
🌟Left ventricular hypertrophy
🌟Pulmonary hypertension
🌟 Association with Moyamoya
disease (anatomic occlusion of the terminal portions of internal carotid arteries, usually occurring in in Asian women)
COMMON SYMPTOMES
🌟Palpitations
🌟Exercise intolerance (muscle weakness ± *inability to increase heart rate and ejection fraction)
🌟Exertional dyspnoea
🌟Anginal chest pain
🌟Increased resting heart rate
🌟Increased cardiac output
🌟Increased myocardial oxygen demand
🌟Decreased systemic vascular
resistances
🌟Systolic hypertension
🌟Peripheral oedema
🌟Congestive cardiac failure
(This seems paradoxical given the increased cardiac contractility and increased cardiac output
🌟Graves’ and Hashimoto’s diseases may be associated with an increased prevalence of mitral valve prolapse
🌟Angina (can develop in
persons with with normal coronary arteries)
Coronary artery vasospasm
🌟Left ventricular hypertrophy
🌟Pulmonary hypertension
🌟 Association with Moyamoya
disease (anatomic occlusion of the terminal portions of internal carotid arteries, usually occurring in in Asian women)
COMMON SYMPTOMES
🌟Palpitations
🌟Exercise intolerance (muscle weakness ± *inability to increase heart rate and ejection fraction)
🌟Exertional dyspnoea
🌟Anginal chest pain