Task: Answer Verification
Input (English): Question: Does conventional carbon dioxide application reduce cerebral or myocardial damage in open heart surgery?
Answer: Although mortality was lower with CO2 insufflation, no benefit could be demonstrated for markers of cardiac ischemic damage or neurocognitive outcome in this high-risk population. As CO2 concentrations in the thoracic cavity did not necessarily reach anticipated levels, our method of application is in question.
Output (English): no