JP2008545471A - 胸部体液蓄積の予測 - Google Patents
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Abstract
Description
今日、心不全は、合衆国において病院入院と支出の主な原因である。心不全は、1年当たり400万件以上の入院の原因となり、それは120億ドル以上の費用がかかると推定される。これらの病院入院の多くは、患者における胸部体液蓄積に起因し、それは、肺水腫又は胸水をもたらすことがある。以上で論じたように、肺水腫と胸水の両方とも、治療が困難であり、かつ重病となることがある。残念なことに、胸部体液蓄積の検出に関連する時間は、長引きすぎることがあり、かかる体液蓄積に起因する有効な臨床的介入(例えば入院)を予防できない。
本システム、装置、方法は、差し迫った胸部体液蓄積の発生を予測し、予防する技術を提供し、かつかかる技術は、ペースメーカ、電気除細動器/除細動器、ペーサ/除細動器のような埋め込み型心律動管理(CRM)システム、心臓再同期治療(CRT)装置のような両室又は他の多部位再同期又は協調装置、患者監視システム、薬物送給システムを含むが、それらに限定されない埋め込み型医療装置(IMD)を含む用途に使用できる。しかしながら、本明細書に記載されたシステム、装置、方法は、外部ペースメーカ、電気除細動器/除細動器、ペーサ/除細動器、両室又は他の多部位再同期又は協調装置、モニタ、プログラマ、レコーダを含むが、それらに限定されない埋め込まれない装置にも、かかる装置が検出、区別又は治療を行うために使用されるか否かを問わず、用いられることがある。
心不全は、特に高齢者において一般的な病型であるが、(たとえそうであるとしても)疾患が、(異常な)胸部体液蓄積のような関連した症状を介して検出されるまで、多くの場合治療されない。好適には、本システム、装置、方法は、差し迫った胸部体液蓄積の予測を可能にする。(検出のみとは対照的に)予測によって提供される時間節約は、高価な入院を減少又は除去し、かつ代償不全発症を回避するか、心不全患者を相対的健康状態に適切に管理するために役立つ。更に、本システム、装置、方法は、差し迫った胸部体液蓄積の予測に関して利用者に警報を提供する。なおも更に、本システム、装置、方法は、予測を使用して差し迫った体液蓄積を予防又は最小限に抑えるために、治療を調節(又は開始)できる。
Claims (27)
- 1つ以上の胸部体液蓄積予測基準を記憶するように構成された、予測基準モジュールと、
差し迫った胸部体液蓄積に統計的に関連した少なくとも1つの胸部体液蓄積パラメータを感知又は受信するように構成された、パラメータ収集装置と、
1つ以上の胸部体液蓄積予測基準を受信するために予測基準モジュールに連結され、かつ少なくとも1つの胸部体液蓄積パラメータを受信するためにパラメータ収集装置に連結された胸部体液蓄積予測モジュールとからなり、
胸部体液蓄積予測モジュールは、1つ以上の胸部体液蓄積予測基準と、少なくとも1つの胸部体液蓄積パラメータとを使用して、差し迫った胸部体液蓄積の発生を予測するように構成されるシステム。 - 胸部体液蓄積予測モジュールは、特定された予測期間中に起こる差し迫った胸部体液蓄積の発生を予測するように更に構成される請求項1に記載のシステム。
- 少なくとも1つの胸部体液蓄積パラメータは、心腔圧、心拍出量、心臓容積、少なくとも1つの心臓不整脈、肺静脈圧、血液薬物濃度、呼吸速度、一回換気量、呼吸睡眠障害、少なくとも1つの夜間の咳、少なくとも1つの心音、少なくとも1つの肺音、血液ガス濃度、血液電解質レベル、神経ホルモンレベルから成る生理的群から選択される生理的パラメータからなる請求項1又は2に記載のシステム。
- 少なくとも1つの胸部体液蓄積パラメータは、心臓再同期治療パラメータ、持続的な空気陽圧パラメータ、薬物用量パラメータ、服薬遵守パラメータ、食餌療法遵守パラメータ、水分摂取遵守パラメータから成る治療的群から選択される治療的パラメータからなる請求項1から3のいずれか1項に記載のシステム。
- 少なくとも1つの胸部体液蓄積パラメータは、姿勢の向き、患者の活動レベル、高度レベルから成る環境的群から選択される環境的パラメータからなる請求項1から4のいずれか1項に記載のシステム。
- 差し迫った胸部体液蓄積の予測された発生は、記憶された重み係数を使用して少なくとも部分的に計算され、かつ
各重み係数は、少なくとも1つの胸部体液蓄積パラメータの異なるものに対応する請求項1から5のいずれか1項に記載のシステム。 - 第1の胸部体液蓄積パラメータに対応する第1の重み係数は、少なくとも1つの他の胸部体液蓄積パラメータのどれが、差し迫った胸部体液蓄積の発生を予測されるために使用されるかによって決まる請求項6に記載のシステム。
- 第1の胸部体液蓄積パラメータに対応する第1の重み係数は、他の胸部体液蓄積パラメータの幾つが、差し迫った胸部体液蓄積の発生を予測されるために使用されるかによって決まる請求項6又は7に記載のシステム。
- 1つ以上の胸部体液蓄積予測基準は、少なくとも1つの胸部体液蓄積パラメータが、感知又は受信される、患者における胸部体液蓄積の発生の1つ以上の過去の観察を使用して導かれる請求項1から8のいずれか1項に記載のシステム。
- 1つ以上の胸部体液蓄積予測基準は、少なくとも1つの胸部体液蓄積パラメータが感知又は受信される患者以外の、少なくとも1人の患者における胸部体液蓄積の発生の1つ以上の過去の観察を使用して導かれる請求項1から8のいずれか1項に記載のシステム。
- 1つ以上の胸部体液蓄積予測基準は、外部ユーザインタフェースに入れられる請求項1から10のいずれか1項に記載のシステム。
- 差し迫った胸部体液蓄積の予測された発生を使用して治療を調節又は開始するように構成された、治療制御モジュールから更になる請求項1から11のいずれか1項に記載のシステム。
- 差し迫った胸部体液蓄積に統計的に関連した少なくとも1つの胸部体液蓄積パラメータを感知又は受信することと、
1つ以上の胸部体液蓄積予測基準を導くことと、
少なくとも1つの胸部体液蓄積パラメータが、1つ以上の胸部体液蓄積予測基準を超えるか、相似かを決定することを含む、装置を使用して、少なくとも1つの胸部体液蓄積パラメータを1つ以上の胸部体液蓄積予測基準と比較することと、
差し迫った胸部体液蓄積の発生を予測することとからなる方法。 - 差し迫った胸部体液蓄積の発生を予測することは、特定された予測期間中に起こる差し迫った胸部体液蓄積の発生を予測することを含む請求項13に記載の方法。
- 差し迫った胸部体液蓄積の発生を予測することは、特定された予測期間中に起こる胸部体液蓄積の尤度に関する確率表明を発生させる装置を使用することを含む請求項14に記載の方法。
- 少なくとも1つの胸部体液蓄積パラメータを感知又は受信することは、心腔圧、心拍出量、心臓容積、少なくとも1つの心臓不整脈、肺静脈圧、血液薬物濃度、呼吸速度、一回換気量、呼吸睡眠障害、少なくとも1つの夜間の咳、少なくとも1つの心音、少なくとも1つの肺音、血液ガス濃度、血液電解質レベル、神経ホルモンレベルから成る生理的群から選択される少なくとも1つの生理的パラメータを感知又は受信することを含む請求項13から15のいずれか1項に記載の方法。
- 少なくとも1つの胸部体液蓄積パラメータを感知又は受信することは、心臓再同期治療パラメータ、持続的な空気陽圧パラメータ、薬物用量パラメータ、服薬遵守パラメータ、食餌療法遵守パラメータ、水分摂取遵守パラメータから成る治療的群から選択される少なくとも1つの治療的パラメータを感知又は受信することを含む請求項13から16のいずれか1項に記載の方法。
- 少なくとも1つの胸部体液蓄積パラメータを感知又は受信することは、姿勢の向き、患者の活動レベル、高度レベルから成る環境的群から選択される少なくとも1つの環境的パラメータを感知又は受信することを含む請求項13から17のいずれか1項に記載の方法。
- 1つ以上の胸部体液蓄積予測基準を導くことは、少なくとも1つの胸部体液蓄積パラメータが、感知又は受信される、患者における胸部体液蓄積の発生の1つ以上の過去の観察を使用することを含む請求項13から18のいずれか1項に記載の方法。
- 1つ以上の胸部体液蓄積予測基準を導くことは、少なくとも1つの胸部体液蓄積パラメータが感知又は受信される患者以外の、少なくとも1人の患者における胸部体液蓄積の発生の1つ以上の過去の観察を使用することを含む請求項13から18のいずれか1項に記載の方法。
- 1つ以上の胸部体液蓄積予測基準は、外部ユーザインタフェースによって装置にロードされる請求項19又は20に記載の方法。
- 少なくとも1つの胸部体液蓄積パラメータと1つ以上の胸部体液蓄積予測基準の一方又は組み合わせに重みを加えることから更になる請求項13から21のいずれか1項に記載の方法。
- 重みは、少なくとも1つの他の胸部体液蓄積パラメータのどれが、差し迫った胸部体液蓄積の発生を予測されるために使用されるかによって少なくとも部分的に決まる請求項22に記載の方法。
- 重みは、他の胸部体液蓄積パラメータの幾つが、差し迫った胸部体液蓄積の発生を予測されるために使用されるかによって少なくとも部分的に決まる請求項22又は23に記載の方法。
- 差し迫った胸部体液蓄積の予測された発生に応答して警報を発生させることを更に含む請求項13から24のいずれか1項に記載の方法。
- 警報を発生させることは、差し迫った胸部体液蓄積の予測された発生に関する情報を外部ユーザインタフェースに伝達することを含む請求項25に記載の方法。
- 差し迫った胸部体液蓄積の予測された発生を予防又は最小限に抑えることを更に含む請求項13から26のいずれか1項に記載の方法。
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Also Published As
Publication number | Publication date |
---|---|
WO2006127719A3 (en) | 2007-01-25 |
JP5039695B2 (ja) | 2012-10-03 |
US8900154B2 (en) | 2014-12-02 |
WO2006127719A2 (en) | 2006-11-30 |
EP1904163B1 (en) | 2017-05-10 |
EP1904163A2 (en) | 2008-04-02 |
US20060271116A1 (en) | 2006-11-30 |
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