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학술저널
저자정보
조유민 (Chungnam National University Hospital) Park Jiho (Department of Anesthesiology and Pain Medicine Chungnam National University Hospital) 오차현 (Chungnam National University Hospital) 정우석 (충남대학교) 송승현 (충남대학교 의과대학 마취통증의학 교실) 이지은 (충남대학교) 강한솔 (충남대학교) 고영권 (충남대학교) 김윤희 (충남대학교) Boo Hwi Hong (Chungnam National University Hospital)
저널정보
대한마취통증의학회(구 대한마취과학회) Korean Journal of Anesthesiology Korean Journal of Anesthesiology Vol.74 No.6
발행연도
2021.12
수록면
522 - 530 (9page)
DOI
10.4097/kja.21028

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Background: The corner pocket (CP) approach for supraclavicular block (SCB) prevents ulnar nerve (UN) sparing due to needle proximity to the lower trunk. Improved ultrasound resolution has suggested that the intertruncal (IT) approach is a suitable alternative method. We compared efficiency of these two approaches on the UN blockade.Methods: Sixty patients were randomized to undergo SCB using the ultrasound-guided CP or IT approach. For lower trunk blockade, 10 ml of local anesthetic agents (1 : 1 mixture of 0.75% ropivacaine and 1% lidocaine) were injected in the CP (CP approach) or between the lower and middle trunks (IT approach). Additional 15 ml was injected identically to block the middle and upper trunks in both groups. Sensory and motor blockade was evaluated after intervention. Results: Complete sensory blockade (75.9% [22/29] vs. 43.3% [13/30], P = 0.023) and complete motor blockade (82.8% [24/29] vs. 50.0% [15/30], P = 0.017) of the UN at 15 min after SCB were significantly more frequent in the IT than in the CP group. Sensory block onset time of the UN was significantly shorter in the IT compared to the CP group (15.0 [10.0; 15.0] min vs. 20.0 [15.0; 20.0] min; P = 0.012). Conclusions: The IT approach provided a more rapid onset of UN blockade than the CP approach. These results suggest that the IT approach is a suitable alternative to the CP approach and can provide faster surgical readiness.

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