Continuous Sciatic Block Nerve in the Management of Vascular Pain in Critical Ischemia of Lower Limbs Patients
Continuous Sciatic Block Nerve in the Management of Vascular Pain in Critical Ischemia of Lower Limbs Patients
Critical limb ischemia (CLI) is associated with severe pain that is a therapeutic challenge
 whit therapeutic limits for the use of conventional analgesics medications. ultrasound-guided
 continuous sciatic block (CCBN) is strategy effective and safe to consider in this patients.

 This prospective descriptive exploratory cohort study evaluates CCBN as a effective
 therapeutic tools for patients whit (CLI)
Critical limb ischemia is the final stage of peripheral vascular disease identified by
 resting pain greater than 2 weeks with ulcers or gangrene in 1 or both extremities. Pain
 relief is a therapeutic challenge due to its severity, which significantly affects the
 quality of life, and the comorbidities that occur frequently in these patients, which limits
 the use of analgesics medications. Regional techniques can play an important role as they are
 safe and effective in analgesic management . Within these we find the ultrasound guided
 continuous sciatic block as a strategy to consider in the periods of exacerbation of pain, as
 a bridge to a palliative or resolutive management.

 Prospective descriptive exploratory cohort study.

 Patients with a diagnosis of critical ischemia of the lower limb with severe pain and side
 effects of opioids will be included. A continuous ultrasound-guided sciatic nerve block with
 longitudinal approach will be performed, with no anti-aggregation or anticoagulation
 suspension, continuing with an infusion of Bupivacaine 0.1%

 The primary outcome will be numerical pain rating scale (NPrs) and secondary outcome Pinprick
 test, catheter duration, opioid consumption reduction and side effects to it.
Inclusion Criteria:

 -  Patients with a diagnosis of critical ischemia of the lower limb with severe pain and
 side effects of opioids

 Exclusion Criteria:

 -  Under 18 years old