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Published on: November 24, 2014
Off-pump versus on-pump coronary artery bypass grafting-a surreal controversy?
Anirban Kundu1, Om Prakash Yadava1, David Taggart2
1National Heart Institute, 49 Community Centre, New Delhi, Delhi 110065 India.
Insights
Coronary artery bypass grafting (CABG) offers superior long-term outcomes for multivessel disease. The debate continues regarding whether off-pump CABG (OPCAB) provides better results than conventional on-pump CABG.
Area of Science:
- Cardiovascular Surgery
- Cardiac Surgery Outcomes
- Interventional Cardiology
Background:
- Coronary artery bypass grafting (CABG) is the gold standard for multivessel disease, as shown by the SYNTAX Trial.
- A persistent controversy exists regarding the comparative efficacy of off-pump CABG (OPCAB) versus conventional on-pump CABG.
- Existing studies present conflicting evidence, highlighting the need for comprehensive, multi-center randomized controlled trials.
Purpose of the Study:
- To critically evaluate the available evidence comparing off-pump CABG (OPCAB) and conventional CABG.
- To assess various parameters to determine if a significant difference exists between OPCAB and conventional CABG.
- To address the ongoing debate on the optimal surgical approach for multivessel coronary artery disease.
Main Methods:
- Review of existing literature and clinical studies comparing OPCAB and conventional CABG.
- Analysis of data based on multiple clinical and functional parameters.
- Assessment of the current evidence landscape to resolve the controversy surrounding the two techniques.
Main Results:
- The SYNTAX Trial established CABG as superior for long-term results in multivessel disease.
- Numerous studies suggest the superiority of either OPCAB or conventional CABG, but without definitive consensus.
- A lack of well-designed, multi-center randomized controlled trials addressing all aspects of the comparison persists.
Conclusions:
- The optimal choice between OPCAB and conventional CABG remains a subject of debate due to inconclusive evidence.
- The ultimate goal is achieving a favorable patient outcome, irrespective of the specific on-pump or off-pump technique used.
- Further high-quality randomized controlled trials are necessary to definitively settle the controversy.
Abstract:
As per the findings of the SYNTAX Trial, it has been established that coronary artery bypass grafting (CABG) affords the best long-term results in patients with multivessel disease. However, it is still a point of contention whether 'off-pump' CABG (OPCAB) (on cardiopulmonary bypass) is better. Many studies appear to establish the superiority of one or the other. But there is still no well-planned multi-centre randomised controlled trial looking into all aspects of the issue that can, once and for all, put the controversy to rest. But as long as one is able to give the patient a good result, does it really matter whether the procedure is done off or on pump? This article looks at the available evidence with regard to various parameters comparing OPCAB and conventional CABG in an attempt to answer the question, if at all, it is a question!
