This is a retrospective chart review to determine the non-inferiority of performing lower extremity peripheral nerve block placement under spinal anesthesia compared to its pre-spinal counterpart.
This is a retrospective chart review to determine the non-inferiority of performing lower extremity peripheral nerve block placement under spinal anesthesia compared to its pre-spinal counterpart. Primary outcome: \- The investiigators will be looking into persistent abnormal neuropathic symptoms lasting more than 7 days following a sciatic popliteal nerve block.
Study Type
OBSERVATIONAL
Enrollment
1,500
Hospital for Special Surgery
New York, New York, United States
Persistent Abnormal Neuropathic Symptoms
Definition of abnormal neuropathic symptoms including numbness, tingling, burning, or pain sensation.
Time frame: lasting more than 7 days following a sciatic popliteal nerve block
NRS pain scores in recovery
A score on a scale from 0 to 10 on how bad the pain is. 0 means no pain, 10 means worst pain. A lower score means a better outcome.
Time frame: PACU recovery stay (up to 48 hours)
Amount of supplemental analgesic and antiemetic provided in the PACU
This includes: IV dilaudid push, oral oxycodone, tramadol, hydrocodone, dilaudid, acetaminophen, ketorolac, ondansetron, dexamethasone.
Time frame: PACU recovery stay (up to 48 hours)
Anesthesia induction time
time from entering the OR to time of anesthesia induction end as defined by the completion of both the spinal and sciatic nerve blockade
Time frame: From the time which patients enter the OR to time of anesthesia induction end (up to 24 hours)
Number of hypoxemia events during induction time
Time frame: during induction time (up to 24 hours)
Amount of sedation given
fentanyl, ketamine, midazolam, propofol
Time frame: during induction time (up to 24 hours)
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