Off-Pump CABG Haemodynamic Compromise — FRCA Final MCQ

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HardCardiothoracic AnaesthesiaOff-Pump CABG Haemodynamic CompromiseFRCA Final

Off-pump CABG: ST elevation and haemodynamic instability when heart displaced for posterior descending artery. Immediate action?

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Correct answer: D — Return heart to anatomical position and stabilise

Cardiac displacement during off-pump CABG causes great vessel kinking, reduced venous return, myocardial compression. Immediate: return heart to anatomical position. Once stable: reattempt with Trendelenburg, volume loading, inotropes, or convert to on-pump.

Reference: RCOA – 2023 – Anaesthesia for off-pump CABG