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Delayed Severe Heart Failure Despite Successful Graves' Disease Management
Hirotaka Nakashima1,2, Takahiro Kamihara1, Takuya Omura3
1Department of Cardiology National Center for Geriatrics and Gerontology Obu Japan.
Clinical Case Reports
|December 19, 2025
Summary
Graves' disease can cause heart failure even after thyroid levels normalize. Patients require ongoing cardiac monitoring and prompt cardiology referral to manage potential heart complications.
Area of Science:
- Cardiology
- Endocrinology
- Internal Medicine
Background:
- Graves' disease is an autoimmune disorder leading to hyperthyroidism.
- Hyperthyroidism can cause significant cardiovascular complications.
- The long-term cardiac impact of Graves' disease, even after treatment, requires further understanding.
Purpose of the Study:
- To highlight the risk of delayed heart failure in patients with Graves' disease.
- To emphasize the importance of cardiac monitoring in patients who have achieved biochemical euthyroidism.
- To advocate for early cardiology consultation in managing Graves' disease patients.
Main Methods:
- This study is a review of existing literature and clinical observations.
- Analysis of patient outcomes with Graves' disease and subsequent cardiac events.
- Correlation of thyroid status with cardiac function and ejection fraction.
Main Results:
- Delayed onset of heart failure with reduced ejection fraction can occur in Graves' disease patients.
- Cardiac complications may manifest even after normalization of thyroid hormone levels (biochemical euthyroidism).
- A significant subset of patients experience persistent or delayed cardiac issues.
Conclusions:
- Patients with Graves' disease are at risk for developing heart failure, irrespective of their current thyroid status.
- Continuous vigilance for cardiac complications is crucial for patients with a history of Graves' disease.
- Early referral to cardiology services is essential for timely diagnosis and management of cardiac dysfunction in these patients.
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