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  • Title: Postoperative continuous catheter-infused local anesthetic reduces pain scores and narcotic use after lower extremity revascularization.
    Author: Shutze W, Shutze WP, Prajapati P, Ogola G, Schauer J, Biller E, Douville N, Shutze RA.
    Journal: Vascular; 2018 Jun; 26(3):262-270. PubMed ID: 28862538.
    Abstract:
    Objective Postoperative pain following lower extremity revascularization procedures is traditionally controlled with narcotic administration. However, this may not adequately control the pain and puts the patient at risk for complications from opiate use. Here we report an alternative strategy for pain management using a continuous catheter-infused local anesthetic into the operative limb. Design Retrospective case-control study. Methods Patients undergoing lower extremity revascularization procedures using continuous catheter-infused local anesthetic were compared to similar patients undergoing similar procedures during the same time period who did not receive continuous catheter-infused local anesthetic. Records were reviewed for pain scores, narcotics consumption, length of stay, need for postoperative chest X-ray, supplemental oxygen use, wound complications, and 30-day readmission. Results There were 153 patients (mean age 69.5 years) from September 2011 to December 2014 who underwent common femoral artery procedures, femoral-popliteal bypass, femoral-tibial bypass, popliteal aneurysm repair, popliteal to pedal bypass, popliteal artery thrombo-embolectomy, sapheno-popliteal venous bypass, or ilio-femoral bypass. There were no significant differences between the continuous catheter-infused local anesthetic ( n=57) and control ( n=96) groups regarding age, body mass index, cardiac history, diabetes, hypertension, and procedures performed. The continuous catheter-infused local anesthetic group showed better cumulative average pain scores, better high pain scores on postoperative days 1-3, and better average pain scores on postoperative days 2-3 ( P<0.03). The continuous catheter-infused local anesthetic group had lower median narcotics consumption on postoperative days 1-2 ( P=0.02). No differences were found in postoperative length of stay, urinary catheter use, number of postoperative chest X-rays, oxygen use, mobilization, or fever. Wound complications occurred in 8.8% of the continuous catheter-infused local anesthetic group and in 11.5% of controls (P=0.79). Readmission rates were 23% (continuous catheter-infused local anesthetic) and 21% (controls; P=0.84). Conclusion Postoperative continuous catheter-infused local anesthetic reduces pain scores and pain medication use compared to standard opiate therapy in these patients, without increasing wound complication or readmission rates. Continuous catheter-infused local anesthetic appeared to have no effect on the incidence of pulmonary complications, mobilization, or fever.
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