KR20190014493A - 좌심실 보조 장치에 의한 흡인성 일산화질소의 사용 및 모니터링 - Google Patents
좌심실 보조 장치에 의한 흡인성 일산화질소의 사용 및 모니터링 Download PDFInfo
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Abstract
Description
본 발명의 앞서 인용된 특징들이 상세하게 이해될 수 있도록, 앞서 간략하게 요약된 본 발명의 더욱 구체적인 설명은 실시예를 참조하여 이루어질 수 있으며, 그 일부는 첨부된 도면에 도시되어 있다. 그러나, 첨부된 도면은 본 발명의 전형적인 실시예를 도시한 것이므로 본 발명의 범위를 제한하는 것으로 간주되어서는 안되며, 본 발명은 다른 동등한 효과의 실시예를 인정할 수 있다.
도 1은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 예시적인 NO 전달 장치를 도시한다.
도 2는 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 예시적인 NO 전달 장치를 도시하며;
도 3은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 LVAD와 연통된 예시적인 NO 전달 장치를 도시하며;
도 4는 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 예시적인 하드웨어 구성을 도시하며;
도 5는 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 예시적인 입력 및 출력 파라미터를 도시하며;
도 6은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 모드 선택을 구비한 예시적인 메인 메뉴를 도시하며;
도 7은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 알람 설정을 구비한 예시적인 메인 메뉴를 도시하며;
도 8은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 구성 설정을 구비한 예시적인 메인 메뉴를 도시하며;
도 9는 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 폐고혈압 해소 가능성의 평가를 위한 예시적인 서브메뉴를 도시하며;
도 10은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 LVAD 설정의 최적화를 위한 예시적인 서브메뉴를 도시하며;
도 11은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 우심실 부전의 위험을 감소시키기 위한 예시적인 서브메뉴를 도시하며;
도 12는 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 좌심실 기능의 평가를 위한 예시적인 서브메뉴를 도시하며;
도 13은 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 심장 운동을 위한 예시적인 서브메뉴를 도시하며; 그리고
도 14는 본 발명의 하나 이상의 실시예에 따라 사용될 수 있는 제어 시스템의 임상 설정을 위한 예시적인 서브메뉴를 도시한다.
Claims (18)
- 폐고혈압 환자가 좌심실 보조 장치(LVAD)의 연속 사용으로 폐고혈압을 해소할 것인가 여부를 결정하는 방법으로서, 상기 방법은
LVAD를 갖는 환자의 하나 이상의 폐 혈류역학 파라미터를 측정하여 제1 폐 혈류역학 값을 획득하는 단계;
상기 제1 폐 혈류역학 값을 획득한 이후, 흡인성 일산화질소를 LVAD를 갖는 환자에게 투여하는 단계; 및
상기 흡인성 일산화질소 투여 동안 또는 이후 상기 환자의 하나 이상의 폐 혈류역학 파라미터를 측정하여 제2 폐 혈류역학 값을 획득하는 단계를 포함하며,
여기서 상기 제1 폐 혈류역학 값으로부터 상기 제2 폐 혈류역학 값으로의 폐 혈류역학 파라미터의 적어도 10 mm Hg 및/또는 적어도 20%의 감소가 환자가 LVAD의 연속 사용 이후 폐고혈압을 해소할 가능성이 있음을 나타내는 것을 특징으로 하는 방법. - 제1항에 있어서, 상기 폐 혈류역학 파라미터는 평균 폐동맥압(mPAP), 경폐압 차이(TPG) 및 폐 혈관 저항(PVR)으로부터 선택되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 흡인성 일산화질소는 5 내지 80 ppm의 농도로 적어도 10 분 동안 투여되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 하나 이상의 폐 혈류역학 파라미터를 측정하는 것은 우심도자술(right heart catheterization)을 수행하는 것을 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,
제1 폐 혈류역학 값으로부터 제2 폐 혈류역학 값으로의 폐 혈류역학 파라미터의 감소가 적어도 10 mm Hg 및/또는 적어도 20%인 경우 환자를 심장 이식 목록에 등재하는 단계; 및
LVAD를 외식(explanting)하고 기증자 심장을 환자에게 삽입하는 단계를 추가로 포함하는 것을 특징으로 하는 방법. - 좌심실 보조 장치(LVAD)의 설정을 최적화하는 방법으로서, 상기 방법은
흡인성 일산화질소를 LVAD를 갖는 환자에게 투여하는 단계;
흡인성 일산화질소의 투여 동안 환자에게 심장초음파(echocardiogram)를 수행하는 단계; 및
심장초음파 동안 및 흡인성 일산화질소의 투여 동안 LVAD의 하나 이상의 파라미터를 조정 또는 설정하여 심박 출량을 최적화하는 단계를 포함하며,
여기서 LVAD의 하나 이상의 파라미터의 조정 또는 설정은 (i) 각각의 심장 박동에 의해 환자의 대동맥판막(aortic valve)이 개방되기 위해 필요한 최소 펌프 속도에 기초하여 LVAD에 대한 낮은 펌프 속도 설정을 결정하는 것 또는 (ii) 환자의 심장 중격이 평탄화되는 펌프 속도에 기초하여 LVAD에 대한 높은 속도 설정을 결정하는 것 중 하나 이상을 포함하는 것을 특징으로 하는 방법. - 제6항에 있어서, 상기 흡인성 일산화질소는 5 내지 80 ppm의 농도로 적어도 10 분 동안 투여되는 것을 특징으로 하는 방법.
- 좌심실 보조 장치(LVAD) 사용 동안 우심실 부전의 위험을 감소시키는 방법으로서, 상기 방법은
흡인성 일산화질소를 투여하기 이전에 LVAD가 작동하는지 여부를 확인하는 단계;
흡인성 일산화질소를 LVAD를 갖는 환자에게 하루에 적어도 12 시간 동안 적어도 20 일 동안 투여하여 우심실 부전의 위험을 감소시키는 단계를 포함하며,
여기서 상기 흡인성 일산화질소는 환자가 심폐 바이패스(CPB)를 중단한 후에 처음으로 투여되는 것이 아닌 것을 특징으로 하는 방법. - 제8항에 있어서, 상기 흡인성 일산화질소는 5 내지 80 ppm의 농도 또는 25 내지 150 μg/kg IBW/hr의 복용량으로 투여되는 것을 특징으로 하는 방법.
- 제8항에 있어서, LVAD의 하나 이상의 출력 파라미터 및/또는 환자의 하나 이상의 혈류역학 파라미터를 모니터링하는 단계, 상기 하나 이상의 출력 파라미터 및/또는 상기 하나 이상의 혈류역학 파라미터를 사전결정된 범위와 비교하는 단계, 및 상기 하나 이상의 출력 파라미터 및/또는 상기 하나 이상의 혈류역학 파라미터가 상기 사전결정된 범위를 벗어나는 경우 흡인성 일산화질소의 복용량을 조정하는 단계를 추가로 포함하는 것을 특징으로 하는 방법.
- 제10항에 있어서, 상기 하나 이상의 출력 파라미터 및/또는 상기 하나 이상의 혈류역학 파라미터가 상기 사전결정된 범위를 벗어나는 경우 경보를 제공하는 단계를 추가로 포함하는 것을 특징으로 하는 방법.
- 좌심실 보조 장치(LVAD)를 갖는 환자의 좌심실을 모니터링하는 방법으로서, 상기 방법은
LVAD의 펌프 속도를 감소시키거나 LVAD를 끄는 단계;
환자의 하나 이상의 폐 혈류역학 파라미터를 측정하여 제1 폐 혈류역학 값을 획득하는 단계;
흡인성 일산화질소를 환자에게 투여하여 좌심실을 전부하(preloading)하는 단계; 및
흡인성 일산화질소 투여 이후 또는 동안 환자의 하나 이상의 폐 혈류역학 파라미터를 측정하여 제2 폐 혈류역학 값을 획득하는 단계를 포함하는 것을 특징으로 하는 방법. - 제12항에 있어서, 상기 폐 혈류역학 파라미터는 좌심방압(LAP), 폐모세혈관쐐기압(PCWP) 및 심박 출량(CO)으로부터 선택되는 것을 특징으로 하는 방법.
- 제12항에 있어서, 상기 흡인성 일산화질소는 5 내지 80 ppm의 농도로 적어도 10 분 동안 투여되는 것을 특징으로 하는 방법.
- 제14항에 있어서, 상기 제1 폐 혈류역학 값으로부터 상기 제2 폐 혈류역학 값까지 5 mm Hg 미만의 LAP 및/또는 PCWP의 증가가 좌심실이 개선되고 있음을 나타내는 것을 특징으로 하는 방법.
- 제15항에 있어서, 좌심실이 개선되는 경우 치료를 수정하는 수정단계를 더욱 포함하며, 상기 수정단계는 환자로부터 LVAD를 외식(explanting)시키는 단계를 포함하는 것을 특징으로 하는 방법.
- 제15항에 있어서, 좌심실을 전부하하는 단계는 흡인성 일산화질소를 5 내지 80 ppm의 농도로 5 내지 30 분 범위의 시간 기간 동안 투여하는 단계를 포함하며, 상기 전부하는 하루에 1회 내지 5회 수행되는 것을 특징으로 하는 방법.
- 제15항에 있어서, 심장을 운동시키는 단계를 더욱 포함하며, 상기 운동시키는 단계는 상기 흡인성 일산화질소 투여를 중단하는 단계; 및
상기 전부하 및 중단을 반복하여 환자 심장의 좌심실을 운동시키는 단계를 포함하는 것을 특징으로 하는 것을 특징으로 하는 방법.
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JP7220269B2 (ja) | 2023-02-09 |
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