一次性副甲状腺症によって誘発された冠動脈微血管機能障害は,副甲状腺切除術後に回復します
Elena Osto1, Francesco Fallo, Maria Rosa Pelizzo
1Department of Cardiologic, Thoracic and Vascular Sciences, University of Padova, Padua, Italy.
Circulation
|July 24, 2012
まとめ
症状のない一次性副甲状腺症 (PHPT) は,冠動脈微血管機能を損なっており,冠動脈流量準備量 (CFR) の減少によって示されています. 副甲状腺切除術はCFRを効果的に回復し,副甲状腺ホルモンを強調します.
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
- 血管生物学 血管生物学
背景:
- 症状性一次性副甲状腺症 (PHPT) は,より高い心血管疾患による死亡率に関連しています.
- 症状のないPHPTに関連した心血管リスクに関するデータは限られている.
- 冠動脈流量準備 (CFR) は,冠動脈微血管機能の重要な指標として機能します.
研究 の 目的:
- 症状のないPHPT患者の冠動脈微血管機能を評価する.
- 冠動脈微血管機能不全における副甲状腺ホルモン (PTH) の役割を評価する.
- PHPTにおける冠動脈微血管機能に対する副甲状腺切除術の影響を決定する.
主な方法:
- トランストラシック・ドップラーエコーカルディオグラフィは,症状のないPHPT患者100人と50人の対照群でCFRを測定するために使用されました.
- CFRは,休息状態とアデノシン誘発性高血症の間に評価されました.
- CFRに関連する要因を特定するために,多変数回帰を含む統計分析が行われました.
主要な成果:
- 症状のないPHPT患者は,対照群と比較してCFRが著しく低下した (P<0.0001).
- CFRは副甲状腺ホルモン (PTH) レベル (r=-0.3,P<0.004) と逆相関していた.
- 冠動脈微血管機能障害 (P<0.0001) の患者で,パラチロイド切除手術によりCFRが正常化しました.
結論:
- 症状のないPHPTは,冠動脈微血管機能不全と関連しています.
- PTHレベルは,冠動脈微血管障害の重症度と独立して相関する.
- 副甲状腺切除術は,PHPT患者の冠動脈微血管機能不全を効果的に逆転させます.
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