Sciatic Block Increases Regional Saturation in Peripheral Artery Occlusive Disease.

A.O.U. Città della Salute e della Scienza31 enrolled

Overview

We conducted Single-center prospective observational study to evaluate the improvement of peripheral vascular perfusion monitored with near-infrared spectroscopy, in patients undergoing endovascular surgery after performing sciatic nervous block.

The aims of that study is to check regional oxigen saturation variability in patients suffering from Peripheral Artery Occlusive Disease (IIa to III Fontaine classification) undergoing popliteal sciatic nerve block as analgesic procedure before vascular surgery. We want to evaluate the increase in regional microcirculation after the popliteal nerve blocks due to vasoplegic response and vasodilatation after performing regional anaesthesia. We will place NIRS electrode on the instep of the foot to evaluate regional oxigen saturation in the interested leg before the performing of popliteal sciatic nerve block and then during the surgery (after 5 minuts, 15 minuts, 30 minuts), and after the end of the procedure.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Peripheral Artery Occlusive Disease Popliteal Sciatic Nerve Block

Interventions

CaseOTHER

Mesure with NIRS regional saturation in patients undergoing popliteal block during vascular surgery for chronic obliterating arteriopathy (IIa to III Fontaine Classification)

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * age: \> 18 years * Peripheral artery occlusive desease involving popliteal, tibial and/or peroneal artery * Stadiation IIa to III in Fontaine classification * Eligibility for PTA or Stenting Exclusion Criteria: * trophic alteration of the application site of the NIRS * less than 18 years * Pregnancy * need of sedation during the procedure * revascularization performed as emergency surgery * Allergic reactions with local anaesthetic * Previous surgery involving the interested artery

Outcomes

Primary Outcomes

Regional Oxigen saturation downstream of popliteal region

NIRS misuration of delivered oxigen T0)before the execution of sciatic popliteal block T1) after 5 minuts, T2)15 minuts, T3)30 minuts, T4)after the revascularization

Time frame: 1 day

Secondary Outcomes

Comparing the results between AOCP IIa to III (Fontaine Classification)

NIRS misuration of delivered oxigen T0)before the execution of sciatic popliteal block T1) after 5 minuts, T2)15 minuts, T3)30 minuts, T4)after the revascularization

Time frame: 1 day

Comparing the results between patients with occlusion of a single arthery and patients with more occluded arthery

NIRS misuration of delivered oxigen T0)before the execution of sciatic popliteal block T1) after 5 minuts, T2)15 minuts, T3)30 minuts, T4)after the revascularization

Time frame: 1 day

Central Contacts

Fabio Gobbi, Doctor

CONTACT

+39 3476655128 fabiogobbi74@gmail.com

Data from ClinicalTrials.gov

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