Araştırma Makalesi

Effect of infraclavicular and interscalene block on oxygenation of the forearm: a randomized controlled study

Cilt: 47 Sayı: 3 30 Eylül 2022
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Effect of infraclavicular and interscalene block on oxygenation of the forearm: a randomized controlled study

Abstract

Purpose: Infraclavicular block (ICB) and interscalene block (ISB) accompanied by ultrasonography imaging (USI) are the most frequently used brachial plexus block techniques in upper extremity surgeries. It is already known that sympathetic blockage occurs after the application of these blocks, and blood flow increases with vasodilatation caused by the blockage. This study aimed to compare the effect of ICB and ISB, which are applied together with USI, on forearm tissue oxygenation. Materials and Methods: A hundred-four patients were included in this study belonging to ASA I-III risk groups, aged 18–65 years, who were scheduled for elective or emergency arm, elbow, or forearm surgery. The patients were divided into two groups: Group ICB and Group ISB. In addition to the baseline hemodynamic measurements, PI, time average velocity (TAV), brachial artery diameter (BAD), brachial arterial area (BAA), brachial artery beat flow (BF), and tissue oxygen saturation (rSO2) data were recorded before block and at the 10th, 20th, and 30th min after the block was completed. Results: The demographic data of the patients in the Group ICB and Group ISB were compared, no significant differences were detected between the groups. When the distribution of the percentage increase in PI and rSO2 values according to time was examined, significant differences were found between the groups. There were no significant differences in the percentage increases in BF, TAV, BAA, and BAD values between the 0th minute and at 10th, 20th, and 30th min (p>0.05). Horner syndrome was observed in 8 patients (15%) and sudden hoarseness was observed in 3 patients (5%) in Group ISB. No complications developed in the Group ICB. Conclusion: This study shows that the effects of ICB and ISB on forearm tissue oxygenation were compared and it was found that ICB increased rSO2 and PI values.

Keywords

Regional anaesthesia , infraclavicular block , interscalene block , perfusion index , tissue oxygen saturation

Kaynakça

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Kaynak Göster

MLA
Açıkgöz, Eren, vd. “Effect of infraclavicular and interscalene block on oxygenation of the forearm: a randomized controlled study”. Cukurova Medical Journal, c. 47, sy 3, Eylül 2022, ss. 931-4, doi:10.17826/cumj.1031005.