Long Term Follow-up of Robotic Assisted Surgical Revascularization (ZEUSFUPCTA)
Long Term Follow-up of Robotic Assisted Surgical Revascularization With CT Angiography
The objectives of the 2-year study are two-fold:
- To determine the 5-7 year patency rate (rate of open bypass grafts) of the LITA graft of patients who have already had robotically-assisted CABG surgery using CTA and MPS-MIBI
- To determine patient quality of life at 5-7 years after robotically-assisted CABG surgery
研究概览
详细说明
New techniques such as robotically-assisted CABG surgery need proper evaluation to ensure potential benefits gained are not harmful to that which we know to be of significant benefit to the patients, that being the left internal thoracic artery (LITA) graft (one of the main coronary arteries supplying your heart with blood). We are therefore proposing a 5-7 year CT-Angiography (CTA) and Myocardial Perfusion Scintigraphy (MPS-MIBI) to assess the patency rate of the LITA graft in patients that have already undergone robotically assisted CABG.
Between September 1999 and December 2001, a single surgeon performed robotically-assisted CABG surgery with LITA-to-LAD anastomosis on 151 patients with single vessel coronary artery disease at the London Health Sciences Centre, University Hospital. Patient consent and Research Ethics approval from The University of Western Ontario was acquired prior to each procedure. Sixty-one patients had robotically-assisted CABG surgery using the Automated Endoscopic Stabilizer for Optimal Positioning (AESOP) 3000 (Computer Motion, Goleta, CA), while 90 patients had robotically-assisted CABG surgery using the Zeus telemanipulation surgical system (Computer Motion, Goleta, CA). The AESOP 3000 is a single-arm robot that facilitates video thoracoscopic LITA dissection by providing steady images and voice-activated camera control. The Zeus telemanipulation surgical system is a multi-arm robotic telemanipulator that incorporates AESOP and allows control of surgical instruments within the thorax from a distant console.
Postoperative angiography was completed prior to discharge whenever possible. Patients continue to be followed on an annual basis. Our intent to perform follow-up angiography and MPS-MIBI at 5 and 10 years duration to assess LITA graft performance was discussed with each patient at the time of the original surgery. Two late deaths unrelated to surgery have been recorded in this cohort.
The 2-year study will be divided into three phases: Phase I - Patient Recruitment (4 months), Phase II - Patient Assessment with CTA, MPS-MIBI and Questionnaires (16 months) and Phase III - Data Analysis and Conclusions (4 months).
Phase I - Chart Review and Patient Recruitment (4 Months) Upon receiving approval from the Research Ethics Board at The University of Western Ontario, charts will be reviewed on all 151 robotically-assisted CABG surgery patients. Data on these patients is currently stored in a regularly updated database at our institution; however, a thorough review of all charts will be performed. Patient demographics and operative notes, as well as perioperative and postoperative complications will be reviewed. Hospital admissions, documented cardiac events and any subsequent deaths not previously documented will be recorded. Any additional pertinent data from the chart review will be entered into a study specific Microsoft Excel file maintained by a single qualified research assistant.
All 149 living robotically-assisted CABG surgery patients will be contacted and their participation in the study requested. Patients will receive an initial request by mail, with an informative letter signed by the principal investigator outlining the purpose of the study, what participation in the study involves, and the specific aims of the cardiac team at the conclusion of the study. A follow-up phone call will be done within 3-weeks of mailing the letter to go over the content and answer any questions that patients may have.
Phase II - Patient Assessment via CTA, MPS-MIBI and Questionnaires (16 Months)
Robotically-assisted CABG surgery patients that agree to be a part of the study will have arrangements made for them to travel to LHSC. Patients will undergo a structured half-day (approximately 4-6 hours) at the hospital consisting of the following:
- Selective coronary artery and LITA graft check via CTA with a 64 slice CT scanner + Rest MPS-MIBI then Stress MPS-MIBI (4-6hrs)
Completion of two validated health related quality of life questionnaires
- Seattle Angina Questionnaire
- 36-Item Short Form Health Survey
研究类型
注册 (实际的)
联系人和位置
学习地点
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Ontario
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London、Ontario、加拿大、N6A 5A5
- London Health Sciences Centre
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Have had previous robotically-assisted CABG surgery with a LITA to LAD anastomosis with either AESOP or Zeus performed between September 1999 and December 2001 at the London Health Sciences Centre
- Willing to give informed consent to participate in the study
Exclusion Criteria:
- Expired
- Unable or unwilling to give informed consent
- History of allergic reaction to contrast material used in CTA or severe adverse reactions to medications used in MPS-MIBI procedures
学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
干预/治疗 |
---|---|
Surgical
Patients who have previously undergone robotic bypass surgery
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Rest and Stress MIBI and CT Angiography
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研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
---|---|
To determine the 5-7 year patency rate of the LITA graft of patients who have already had robotically-assisted CABG surgery using CTA and MPS-MIBI
大体时间:5-7 years post robotic assisted CABG
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5-7 years post robotic assisted CABG
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次要结果测量
结果测量 |
大体时间 |
---|---|
To determine patient quality of life at 5-7 years after robotically-assisted CABG surgery
大体时间:5-7 years post robotic assisted CABG
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5-7 years post robotic assisted CABG
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合作者和调查者
调查人员
- 首席研究员:Bob Kiaii, MD, FRCSC、London Health Sciences Centre
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
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