ABSTRACT
Objective To discuss the protection of parathyroid and application of nano-carbon suspen-sion in thyroid surgery .Methods 80 cases were randomly divided into 2 groups:the experimental group which were injected nano-carbon into thyroid during thyroidectomy , and the control group without any injection .Results There were 5 cases with hypocalcemia and 5 cases with PTH decrease in the experimental group , and there were 15 cases and 14 cases respectively in the control group .Pathological results showed that misresection of par-athyroids occurred in 6 cases of the control group(11 parathyroid glands)were while it didn't happen in the experi-mental group .Conclusion Nano-carbon can help to identify and protect the parathyroid , decreasing the proba-bility of parathyroid gland damage during thyroid surgery .