What are the side effects of epidural needles?

Its complications mainly include ten aspects: first: puncture of the dura; second: the puncture needle or catheter is mistakenly inserted into the blood vessel, this situation is generally detected in time, but sometimes the catheter opening is blocked by small blood coagulation and sucks back without effect. blood, the local anesthetic will be directly injected into the blood vessels to cause toxic reactions; third: air embolism, which is mainly because the puncture needle damages the epidural blood vessels, the gas injection test provides a way for the gas to enter the circulation, if the air intake exceeds 10 ml, There is a possibility of death. Fourth: puncture of the pleura Fifth: broken catheter Subarachnoid space, resulting in abnormally extensive block, mainly manifested as no pain in all spinal nerve innervation areas, hypotension, loss of consciousness and respiratory arrest, these symptoms appear a few minutes after the injection, and cardiac arrhythmia may occur if the treatment is not timely. Stop. This is the most serious complication.

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