Why is a post operative forgiving beneath sub arachnoid block anesthesia positioned flat on bed for 8 hours?
what are the three majors reasons why post operative patients under sub arachnoid block anesthesia own to be positioned flat on bed for at least 8 hours.
Answer: The three main issue which are significantly artificial by early ambulation in patients who hold been administered a subarachnoid block are:
Postdural Puncture Headache – incidence related to use of larger needles (22G), cutting needles. The leak of the CSF due to trauma to the dura can cause a significant postdural puncture headache. Having the patient stay surrounded by a flat position decreases the CSF pressure on the dura allowing it to seal. Occurrence can also be reduced by rotating the hypodermic so that the bevel is pointed to the side, this decreases trauma to the dura.
Transient Radicular Syndrome/Transient Neurological Syndrome – self resolving pain aggravated by rash ambulation post-op.
Hypotension. Many patients have issues with hypotension following subarachnoid blocks, the prolonged length lying prone allows the body to resolve this issue prior to ambulation, thus decreasing the risk of injury due to falls.
Hope this helps.