Preoperative Continuous Sciatic Perineural Analgesia in Patients Undergoing Lower Limb Revascularization

Hospital Municipal Miguel Couto15 enrolled

Overview

This study evaluates the pain score numerical rating, after sciatic analgesic continuous block, in patients with ischemic pain before surgery of limb revascularization. All patients received those blocks to control ischemic severe pain.

Peripheral Obstructive Arterial Disease (PAD) is a disease with a prevalence of 10 to 25% in the population over 55 years, increasing with age, and may have disabling pain as a symptom, and sometimes the surgical approach is required. In the context of public hospital in Rio de Janeiro, where patients need to wait for surgery, the Anesthesiology and Acute Pain service routinely has sciatic nerve analgesic block in the popliteal region as a preoperative procedure. The primary objective of the present study is to describe a series of cases where the technique was applied in order to relieve the pain of these patients, following the Pain Score Numerical rating as a reference. Secondary objectives will be to describe difficulties associated with the technique and possible associated adverse factors.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Ischemic Leg Peripheral Vascular Disease

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * preoperative continuous sciatic-popliteal nerve block * lower limb angioplasty * peripheral arterial disease; * between 2017 and 2018 years; * correct filling of numerical rating pain evaluation in the medical record Exclusion Criteria: * peripheral block to treat another pathology or condition in te same patient; * peripheral block at another concomitant site (other than the popliteal); * No adequate record of the care received in the medical record * if medical record is not available during the data collection period

Locations (1)

Rafael M Linhares

Rio de Janeiro, Brazil

Outcomes

Primary Outcomes

change in numerical pain scale

Numerical Pain Scale (END) self-assessed by the patient before and after 24 hours of continuous analgesic block of the sciatic nerve, with infusion of levobupivacaine 0,125% or ropivacaine 0,2%. The scale score is 0-10 (0= no pain; 10 = pain as bad as can be)

Time frame: 24 hours after placement of sciatic catheter

Secondary Outcomes

change in numerical pain scale

Numerical Pain Scale (END) self-assessed by the patient before and after 72 hours of continuous analgesic block of the sciatic nerve, with infusion of levobupivacaine 0,125% or ropivacaine 0,2%. The scale score is 0-10 (0= no pain; 10 = pain as bad as can be)

Time frame: 72 hours after placement of sciatic catheter

classification of technique difficulties

To report, qualitatively, the presence of variations or difficulties in the use of the technique, such as: failure of the technique (FT); existence of concomitant venous analgesia (VA); inadequate registration of the technique (IR)

Time frame: 72 hours after placement of sciatic catheter

classifications of possible complications

Report, qualitatively, the presence of possible complications, such as: hyperemia of the catheter insertion site (HC); the presence of pus (PUS); catheter displacement (CD)

Time frame: 72 hours after placement of sciatic catheter

Data from ClinicalTrials.gov

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