- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT01892800
Right Side of Heart Function After Lung Surgery
The Pulmonary Vascular / Right Ventricular Response to Lung Resection
연구 개요
상세 설명
Lung cancer is the second most common cancer in the UK. In suitable cases the best chance of cure is surgical resection. Studies suggest that lung resection is associated with right ventricular (RV) dysfunction, predisposing to complications and post-operative dyspnoea. Studies of RV function following lung resection have been hampered by the limitations of the techniques used. In addition the mechanism of RV dysfunction has remained elusive.
In this prospective observational study the RV response to lung resection will be characterised by sequential assessment of right ventricular ejection fraction (RVEF) measured using cardiovascular magnetic resonance (CMR). CMR is non-invasive, involves no ionising radiation and due to its high spatial resolution is the gold standard for assessing RV volumes. Comprehensive CMR and echocardiographic assessment of the pulmonary vascular - RV axis will allow us to interpret peri-operative changes in RVEF in the context of RV contractility and loading indices. In addition, contemporaneous blood samples will be taken for measurement of biomarkers of myocardial and endothelial dysfunction and systemic inflammation.
With increased understanding of the mechanisms involved, it may be possible to prevent RV dysfunction; reducing complication rates, hospital stay and costs and ameliorating long term dyspnoea.
연구 유형
등록 (예상)
연락처 및 위치
연구 장소
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Clydebank, 영국
- Golden Jubilee National Hospital
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- Provision of informed consent
- Age >16 years
- Planned elective lung resection by lobectomy
Exclusion Criteria:
- Pregnancy
- On-going participation in any investigational research which could undermine the scientific basis of the study
Contraindications to magnetic resonance imaging:
i. Cardiac pacemaker, artificial heart valve, neurostimulator, cochlear implant ii. Aneurysm clips iii. Metal injuries to the eye iv. Loose metal in an part of the body
- Wedge / segmental / sub-lobar lung resection
- Pneumonectomy
- Isolated right middle lobectomy
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
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Study population - lung resection
Patients with suspected lung cancer undergoing lung resection by anatomic lobectomy
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다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Right ventricular ejection fraction
기간: 3 days
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The primary objective of this study is determine whether RVEF falls post-operatively in patients undergoing lung resection.
The primary outcome is RVEF at 3 days post-lung resection compared to pre-operative values determined by CMR.
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3 days
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Association between RVEF and contractility / loading indices
기간: 3 days
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Changes in RVEF must be interpreted in the context of changes in RV contractility and loading parameters. Changes in pre-load, contractility, afterload, ventriculo-arterial coupling, diastolic function and the position of the mediastinum could all potentially influence RVEF.The following indices will be subject to assessment as secondary endpoints: Preload - Right ventricular end-diastolic volume (RVEDV) Contractility - Peak systolic strain and strain rate Afterload - Pulmonary artery (PA) distensibility, PA peak velocitly, PA antegrade flow, Estimated PA systolic pressure,Pulmonary artery acceleration time Ventriculo-arterial coupling: Ea/Emax(CMR) Diastolic function: E/A velocity ratio. |
3 days
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RVEF vs LVEF
기간: 3 days
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Changes in right-sided cardiac function must be interpreted in the context of left-sided function.
ΔRVEF will be compared to changes in Left Ventricular Ejection Fraction (LVEF) over the same period.
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3 days
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Association between biomarkers of myocardial and endothelial dysfunction, systemic inflammation, oxidative and nitrosative stress and ΔRVEF
기간: 3 days
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Association between biomarkers of myocardial and endothelial dysfunction, systemic inflammation, oxidative and nitrosative stress and ΔRVEF. Myocardial dysfunction: Brain natriuretic peptide and high sensitivity Troponin-T. Systemic inflammation: C-reactive protein and Pentraxin 3. Oxidative / Nitrosative stress: Malondialdehyde, nitrate and nitrite (determined in plasma and endobronchial aspirate and the end of surgery). Endothelial dysfunction: Angiopoietin (Ang) 1 & 2, Von Willebrand factor (VWf), E-selectin (ESEL) and soluble intracellular adhesion molecule (sICAM)). |
3 days
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Association between RVEF and functional status
기간: 3 months and 1 year
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Association between RVEFpreop, RVEFpostop, and RVEF3months and functional status by self report and 6-minute walk test (6MWT).
Functional status will be assessed subjectively by written questionnaire.
Scoring will be based on the New York Heart Association (NYHA) classification, WHO performance status classification and health related quality of life scoring by EQ-5D questionnaire.
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3 months and 1 year
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공동 작업자 및 조사자
수사관
- 수석 연구원: Ben Shelley, MB ChB, University of Glasgow
간행물 및 유용한 링크
일반 간행물
- Glass A, McCall P, Arthur A, Mangion K, Shelley B. Pulmonary artery wave reflection and right ventricular function after lung resection. Br J Anaesth. 2023 Jan;130(1):e128-e136. doi: 10.1016/j.bja.2022.07.052. Epub 2022 Sep 15.
- Young DJ, McCall PJ, Kirk A, Macfie A, Kinsella J, Shelley BG. B-type natriuretic peptide predicts deterioration in functional capacity following lung resection. Interact Cardiovasc Thorac Surg. 2019 Jun 1;28(6):945-952. doi: 10.1093/icvts/ivz016.
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (예상)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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