パロキシズム性心房動の患者の左心房の非接触マッピングを同時に行う
1University Leipzig-Heart Center, Department of Cardiology, Leipzig, Germany. hindg@medizin.uni-leipzig.de
Circulation
|July 18, 2001
まとめ
ノンコンタクトマッピングは,心拍不振を誘発する肺静脈および心房細動を引き起こす他の焦点を正確に特定します. この技術は,放射性カテーテル除去の指針を導き,患者向けのパーソナライズされた治療戦略を開発するのに役立ちます.
科学分野:
- 心臓病学 心臓病学
- 電気生理学 電気生理学
- 医療技術 医療技術について
背景:
- カテーテルアブレーションは,心房細動の治療法である.
- アリズム発作の焦点を特定することは,特に複雑なケースでは,従来のマッピングでは困難である可能性があります.
- 非接触マッピングは,より良い識別のための潜在的な解決策を提供します.
研究 の 目的:
- 動脈動乱発症患者の心拍動不良の発症点を特定するための同時非接触マッピングの有用性を調査する.
- 無接触マッピングの効果を評価し,無線周波数カテーテル除去をガイドする.
主な方法:
- カテーテルに設置された非接触マルチエレクトロッド配列を17人の心房細動患者さんの左心房に設置した.
- 単一ビートから3300の電波を同時に再構築し,同電位マップを生成しました.
- これらの地図を用いて28の子宮外の焦点 (25の肺静脈,3の肺外静脈) を特定した.
主要な成果:
- 非接触マッピングにより,肺静脈と肺外静脈の焦点が成功裏に特定されました.
- 非接触マッピングで導かれた放射性キャセターアブレーションは,12人の患者で試みられました.
- 12人の患者のうち9人の患者 (75%) で心房細動の切除が成功しました.
結論:
- ノンコンタクトマッピングは,リズム不振を誘発する肺静脈と肺外静脈の焦点の迅速かつ正確な識別を可能にします.
- この技術は,個別化された治療戦略を開発するための診断ツールとして機能します.
- それは,心房細動のための無線周波数カテーテルアブレーションを効果的に導くことができます.
関連する概念動画
Cardiac Catheterization II: Right Heart Catheterization
2.2K
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
2.2K
Cardiac Catheterization III: Left Heart Catheterization
1.3K
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
1.3K
Heart Failure III: Clinical Manifestations
1.2K
Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
1.2K
Cardiomyopathy II: Dilated Cardiomyopathy
790
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
790
Cardiomyopathy III: Hypertrophic Cardiomyopathy
805
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
805
Cardiomyopathy V: Interprofessional Care
753
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
753


