Jarvik 2000 植入可能な軸流動左心室補助システムとの最初の臨床経験
O H Frazier1, Timothy J Myers, Igor D Gregoric
1Cullen Cardiovascular Surgical Research Laboratories, Texas Heart Institute, Houston, USA.
Circulation
|June 19, 2002
まとめ
Jarvik 2000軸流量ポンプは,心不全患者にとって安全で効果的な左心室補助システム (LVAS) を提供しています. この高度な装置は,血液動力学と生活の質を改善し,移植候補者にとって有効な選択肢として機能します.
科学分野:
- 心血管外科手術についてです.
- バイオメディカルエンジニアリング
- 心不全管理について
背景:
- 植入可能な左心室補助システム (LVAS) は,重度の心不全の管理に不可欠です.
- 従来のLVASには限界があり,患者の罹患率に影響を及ぼしています.
- 軸流量ポンプは,患者の治療結果を改善するための有望な進歩を表しています.
研究 の 目的:
- Jarvik 2000 LVASの安全性と臨床的有用性を評価する.
- 装置が血液動力学と患者の機能状態に与える影響を評価する.
主な方法:
- 10人のニューヨーク心臓協会 (NYHA) のクラスIVの心臓移植候補者にJarvik 2000を埋め込みました.
- 外科的アプローチは,左胸切除術と部分心肺バイパス手術でした.
- 平均サポート期間は84日でした.
主要な成果:
- 植入後48時間以内に顕著な改善が観察されました:心臓指数の43%の上昇,肺毛細血管の圧の52%の減少.
- 患者は全身的血管抵抗の低下を経験し,イノトロプ的サポートの必要性がなくなりました.
- 8人の患者は,リハビリテーション後にNYHAクラスIを達成し,効果的な左心室の放電を示しました.
結論:
- Jarvik 2000は効果的な補助装置として機能し,左心室の部分解荷を通じて血液動力学を最適化します.
- 予備的な調査結果によると,Jarvik 2000 LVASは心臓移植候補者の循環支援のために安全に使用することができます.
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