Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Question: Does racemic ketamine abolish cerebrovascular autoregulation in the pig?
Answer: We conclude that autoregulation of CBF is not abolished during continuous ketamine infusion in normoventilated pigs and that previous divergent conclusions are unlikely to be associated with severe impairment of cerebrovascular autoregulation.
no

Question: Are perioperative nonselective non-steroidal anti-inflammatory drugs associated with anastomotic leakage after colorectal surgery?
Answer: There does not appear to be a significant association between perioperative ketorolac use and anastomotic leakage after colorectal surgery. However, further prospective studies are needed to confirm our findings before definitive guidelines on NSAID use perioperatively can be recommended.
no

Question: Is the presence of Down syndrome a risk factor in complete atrioventricular septal defect repair?
Answer: The presence of Down syndrome in patients with complete atrioventricular septal defect is not a risk factor for surgical repair. Because of the early development of pulmonary vascular disease, primary repair should be performed within the first 6 months of life. In the long term, reintervention on the left atrioventricular valve is more often required in children with a normal chromosomal pattern.

no