The goal of this observational study is to determine the effect of femoral and sciatic nerve blocks, combined with general anesthesia, in postoperative pain levels and phantom limb pain development in patients undergoing lower limb amputation.
Study Type
OBSERVATIONAL
Enrollment
72
Femoral and Sciatic Nerve Blocks
G. Gennimatas General Hospital
Athens, Attica, Greece
Presence of phantom limb pain
Presence of phantom limp pain and residual limp pain assessed using the Numerical Rating Scale for pain sensation (0-10, 0 being no pain, 10 being the worst imaginable pain)
Time frame: Total screening time up to 9 months from day of surgery (DAY 0). Timeframe: DAY 3, DAY 7, DAY 30, DAY 60, DAY 90, DAY 120, DAY 150, DAY 180, DAY 210, DAY 240, DAY 270.
Presence of phantom limb pain
Presence of phantom limp pain and residual limp pain assessed using the Douleur Neuropathique en 4 Questions questionnaire (total scoring 0-10, score of 4 and above indicating presence of neuropathic pain) for neuropathic pain
Time frame: Total screening time up to 9 months from day of surgery (DAY 0). Timeframe: DAY 3, DAY 7, DAY 30, DAY 60, DAY 90, DAY 120, DAY 150, DAY 180, DAY 210, DAY 240, DAY 270.
Presence of phantom limb pain
Presence of phantom limp pain and residual limp pain assessed using the painDETECT questionnaire (total scoring 0-38, 0-12 indicating an unlikely component of neuropathic pain, 13-18 an ambiguous result and 19-38 a likely component of neuropathic pain) for neuropathic pain
Time frame: Total screening time up to 9 months from day of surgery (DAY 0). Timeframe: DAY 3, DAY 7, DAY 30, DAY 60, DAY 90, DAY 120, DAY 150, DAY 180, DAY 210, DAY 240, DAY 270.
Postoperative morphine consumption
All patients will be connected to an electronic pump for administration of morphine as an analgesic agent through a Patient Controlled Analgesia protocol, which enables the administration of morphine only when required by the patient. At the end of the time frame period the total morphine consumption was measured.
Time frame: Up to 3 days after surgery (DAY 0), i. e. until DAY 3
Postoperative pain
Postoperative pain assessed using the Numerical Rating Scale for pain sensation (0-10, 0 being no pain, 10 being the worst imaginable pain)
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Time frame: Up to 3 days after day of surgery (DAY 0). Assessed at: DAY 0 12 hours after end of surgery, DAY 1 , DAY 2, DAY 3
Postoperative pain
Postoperative pain assessed using the Douleur Neuropathique en 4 Questions questionnaire (total scoring 0-10, score of 4 and above indicating presence of neuropathic pain) for neuropathic pain
Time frame: Up to 3 days after day of surgery (DAY 0). Assessed at: DAY 0 12 hours after end of surgery, DAY 1 , DAY 2, DAY 3
Postoperative pain
Postoperative pain assessed using the painDETECT questionnaire (total scoring 0-38, 0-12 indicating an unlikely component of neuropathic pain, 13-18 an ambiguous result and 19-38 a likely component of neuropathic pain) for neuropathic pain
Time frame: Up to 3 days after day of surgery (DAY 0). Assessed at: DAY 0 12 hours after end of surgery, DAY 1 , DAY 2, DAY 3