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2016, vol. 11, br. 1, str. 15-20
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Da li dodatak deksametazona lokalnom anestetiku produžava trajanje analgezije kod interskalenskog bloka pleksusa brahijalisa kod pacijenata sa operacijom ramena?
Does the addition of dexamethason to local anesthetic prolong the analgesia of interscalen plexus brachialis block in patients with shoulder surgery?
aClinic for Orthopaedic Surgery, Medical Faculty, University 'St. Kiril and Metodij' Skopje, Rep. of Macedonia bUniversity Clinic for Orthopaedic Surgery, Medical Faculty Skopje, Republic of Macedonia
e-adresa: jasminkananceva@yahoo.com
Sažetak
Blokovi perifernih nerava su odgovarajuća zamena za generalnu anesteziju, posebno u jednodnevnim, kratkim hirurškim intervencijama. Interskaleni blok pleksusa brahijalisa, podjednako kao i supraklavikularni i infraklavikularni obezbeđuje pouzdanu, sigurnu, efektivnu, ekonomičnu i najkompletniju anesteziju sa zadovoljavajućom postoperativnom analgezijom za operacije gornjeg ekstremiteta. Postoperativna analgezija bloka pleksusa brahijalisa može biti produžena uz korišćenje drugih lekova kao dodataka lokalnim anesteticima. Deksametazon, primenjen kao dodatni lek, za blokiranje perifernih nerava, pokazao se kao odličan lek, koji produžava vreme postoperativne analgezije. Studija je randomizovana, prospektivna i dvostruko slepa i kontrolisana studija. Cilj: Studija je dizajnirana da uporedi efekte deksametazona, koji je primenjen kao dodatak bupivakainu u interskalenskom bloku pleksusa brahijalisa na po- četku, tokom trajanja i postoperativne analgezije kod pacijenata, podvrgnutih operaciji ramena. Metoda: Prospektivnoj, dvostruko slepoj studiji su podvrgnuti pacijenti, kojima je zakazana operacija ramena pod interskalenim blokom pleksusa brahijalisa. Uključili smo 60 pacijenta, ASAI-II oba pola, uzrasta 19-65 godina, težine 54-89 kg, podeljenih u dve grupe G1 i G2. Blok brahijalnog pleksusa je izveden interskalenim pristupom i miksturom 2% lidokaina (12 ml) i 0,5% bupivakaina (22 ml) bilo samih ili u kombinaciji sa deksametazonom (4 mg). Blok je postignut korišćenjem duple tehnike, neurostimulator/ultrazvuk tehnike. Rezultati: U našem istraživanju smo našli značajan porast na početku i tokom trajanja, motornog i senzornog bloka u Grupi 2 (sa deksametazonom) u poređenju sa Grupom 1 (p < 0,01). Zaključak: Dodavanje deksametazona lokalnim anesteticima u interskalenom bloku pleksusa brahialisa, značajno produžava vreme trajanja analgezije i bloka motornih funkcija kod pacijenata podvrgnutih artroskopiji ramena. šta više, pokazao se kao izuzetno siguran i ekonomičan metod u obezbeđivanju postoperativne analgezije.
Abstract
Introduction: Peripherial nerve blocks is a suitable alternative to general anesthesia especially for one-day case surgery. Interscalene approach of plexus brachialis block as much as supraclavicular and infraclavicular provide reliable, safe, effective, low cost and most complete anesthesia with satisfactory postoperative analgesia for upper limb surgery. Postoperative analgesia of plexus brachialis blocks can be prolonged by using different drugs as adjuvants with local anesthetics. Dexamethasone has been shown to prolong the duration of postoperative analgesia when given as an adjunct for peripheral nerve blocks. The investigation was randomized, prospective, double blinded and controlled study. Objective: The study was designed to compare the effects of dexamethasone administered as an adjunct to bupivacaine in interscalene brachial plexus block on the onset, duration and postoperative analgesia in patients under the shoulder surgery. Methods: A prospective, double-blind study was undertaken in patients scheduled for shoulder surgeries under the interscalene brachial plexus block. We enrolled 60 patients, ASAI-II both sexes, aged 19-65 years, weighing 54-89 kg, divided to two groups G1 and G2. The brachial plexus block was performed by interscalene approach andmixture of2% lidocaine (12ml) and 0.5% bupivacaine (22 ml) either alone or combined with dexamethasone (4 mg). The block was performed by using double technique neurostimulator/ultrasound technique. Results: In our investigation we found a significant increase in onset and duration of motor and sensory block in Group G2 (with dexamethasone) as compared to Group G1 patients (p < 0.01). Conclusion: Addition of dexamethasone to local anesthetic drugs in interscalene plexus brachialis block, significantly prolongs the duration of analgesia and motor block in patients undergoing shoulder arthroscopy. Moreover, it is a remarkably safe and cost effective method of providing postoperative analgesia.
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