甲状腺機能低下症に対するチロキシン治療の不服従に関連した再発性心室動脈性短心症
Chandrasekar Sundaram1,2, Sneha Keswani2, Johann Varghese3
1Cardiology, Trichy SRM Medical College Hospital and Research Centre, Tiruchirappalli, Tamil Nadu, India sundrinio@gmail.com.
BMJ case reports
|February 20, 2026
まとめ
重度の甲状腺機能低下症は,若い女性において危険な心律乱や長時間のQTc間隔を引き起こした. 迅速な甲状腺ホルモン置換療法は,生命を脅かす心臓イベントを解決し,心臓の機能を改善しました.
科学分野:
- 心臓病学 心臓病学
- エンドクリノロジー エンドクリノロジー
- 内科内科は,内科の内科である.
背景:
- 産後粒状性低血球炎は,中央性甲状腺機能低下症につながる可能性があります.
- QTc延長は,心室動脈短縮症のような潜在的に致命的な心律不整症の危険因子です.
- 甲状腺機能障害は,心血管の合併症で表れる可能性があります.
研究 の 目的:
- 中枢甲状腺機能低下症に二次的な心室動脈性短拍の嵐とQTc延長の症例を報告する.
- 原因不明の心臓発作で内分泌障害を考慮する重要性を強調する.
- このような症例の管理における甲状腺ホルモン置換療法の有効性を実証する.
主な方法:
- ヒポフィジチス病歴のある女性患者の症例報告.
- 心臓機能と甲状腺の状態を評価するために,EKGモニタリングと検査を行う.
- 甲状腺ホルモン補充 (T3およびT4) とコルチコステロイドによる治療.
主要な成果:
- 患者は血液動力学的不安定性,多形心室性心拍動脈 (VT) と著しく延長されたQTc間隔 (581 ms) を示した.
- 抗不律症治療にもかかわらず,彼女は静脈動脈嵐,心臓発作性ショック,左心室収縮機能不全を経験しました.
- 甲状腺ホルモンの置換とステロイド療法により,心律不良が完全に解消し,心臓機能が急速に回復しました.
結論:
- 中枢性甲状腺機能低下症は,重度の心律動乱やQTc延長を引き起こす可能性があります.
- 甲状腺機能障害の早期診断と治療は,関連する心血管合併症の管理に不可欠です.
- 甲状腺ホルモンの置換は,甲状腺機能低下症によって引き起こされる不律性に対する効果的な治療法です.
関連する概念動画
Increased pulse rate
1.2K
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
1.2K
Dysrhythmias II: Classification of Tachyarrhythmias
667
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
667
Dysrhythmias III: Characteristics of Dysrhythmias
555
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per...
555
Synthesis and Regulation of Thyroid Hormones
8.2K
Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
8.2K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
648
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
648
Disturbances in Heart Rhythm
3.3K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
3.3K


