Cargando…
A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block
Background: Because it affords greater accuracy than landmark-based techniques, ultrasound guidance may reduce the volume of local anesthetic required for sympathetic blockade of the upper extremity. We hypothesized that 4 mL would provide a similar clinical effect when compared to larger volumes. M...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780673/ https://www.ncbi.nlm.nih.gov/pubmed/31461935 http://dx.doi.org/10.3390/jcm8091314 |
_version_ | 1783457190888079360 |
---|---|
author | Yoo, Yongjae Lee, Chang-soon Kim, Yong-Chul Moon, Jee Youn Finlayson, Roderick J. |
author_facet | Yoo, Yongjae Lee, Chang-soon Kim, Yong-Chul Moon, Jee Youn Finlayson, Roderick J. |
author_sort | Yoo, Yongjae |
collection | PubMed |
description | Background: Because it affords greater accuracy than landmark-based techniques, ultrasound guidance may reduce the volume of local anesthetic required for sympathetic blockade of the upper extremity. We hypothesized that 4 mL would provide a similar clinical effect when compared to larger volumes. Methods: One hundred and two patients with chronic neuropathic pain of the upper extremity or face were randomly assigned to receive an ultrasound-guided (USG) stellate ganglion block (SGB) with either 4 mL (group A), 6 mL (group B) or 8 mL (group C) mL of 1.0% lidocaine. Skin temperatures of the face, hand, and axillary fold were measured bilaterally at baseline, 10, 20, and 30 min after the block. Our primary outcome was the relative increase in hand temperature on the blocked side at 30 min and our non-inferiority margin was −0.6 °C. Secondary outcomes included success rate (as defined by a relative temperature increase of ≥1.5 °C), pain relief, degree of ptosis and side-effects. Results: The 95% confidence intervals for the difference of the means exceeded our non-inferiority margin (A versus B: −0.76 to 0.24; A versus C: −0.89 to 0.11) for temperature changes in the hand; however, success rates were similar (44, 45 and 55% for A, B and C respectively, p = 0.651). No intergroup differences were found in temperature-related outcomes for the other measurement sites (face, axilla). The incidence of minor side-effects was significantly higher in group C and no block-related complications were noted. Conclusions: We were unable to establish the non-inferiority of a 4 mL volume for sympathetic blockade of the hand. The clinical significance of these findings is unclear as success rates were similar between the different groups. In contrast, the 6- and 8 mL volumes were not associated with greater temperature changes in the face and axilla. |
format | Online Article Text |
id | pubmed-6780673 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-67806732019-10-30 A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block Yoo, Yongjae Lee, Chang-soon Kim, Yong-Chul Moon, Jee Youn Finlayson, Roderick J. J Clin Med Article Background: Because it affords greater accuracy than landmark-based techniques, ultrasound guidance may reduce the volume of local anesthetic required for sympathetic blockade of the upper extremity. We hypothesized that 4 mL would provide a similar clinical effect when compared to larger volumes. Methods: One hundred and two patients with chronic neuropathic pain of the upper extremity or face were randomly assigned to receive an ultrasound-guided (USG) stellate ganglion block (SGB) with either 4 mL (group A), 6 mL (group B) or 8 mL (group C) mL of 1.0% lidocaine. Skin temperatures of the face, hand, and axillary fold were measured bilaterally at baseline, 10, 20, and 30 min after the block. Our primary outcome was the relative increase in hand temperature on the blocked side at 30 min and our non-inferiority margin was −0.6 °C. Secondary outcomes included success rate (as defined by a relative temperature increase of ≥1.5 °C), pain relief, degree of ptosis and side-effects. Results: The 95% confidence intervals for the difference of the means exceeded our non-inferiority margin (A versus B: −0.76 to 0.24; A versus C: −0.89 to 0.11) for temperature changes in the hand; however, success rates were similar (44, 45 and 55% for A, B and C respectively, p = 0.651). No intergroup differences were found in temperature-related outcomes for the other measurement sites (face, axilla). The incidence of minor side-effects was significantly higher in group C and no block-related complications were noted. Conclusions: We were unable to establish the non-inferiority of a 4 mL volume for sympathetic blockade of the hand. The clinical significance of these findings is unclear as success rates were similar between the different groups. In contrast, the 6- and 8 mL volumes were not associated with greater temperature changes in the face and axilla. MDPI 2019-08-27 /pmc/articles/PMC6780673/ /pubmed/31461935 http://dx.doi.org/10.3390/jcm8091314 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yoo, Yongjae Lee, Chang-soon Kim, Yong-Chul Moon, Jee Youn Finlayson, Roderick J. A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block |
title | A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block |
title_full | A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block |
title_fullStr | A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block |
title_full_unstemmed | A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block |
title_short | A Randomized Comparison between 4, 6 and 8 mL of Local Anesthetic for Ultrasound-Guided Stellate Ganglion Block |
title_sort | randomized comparison between 4, 6 and 8 ml of local anesthetic for ultrasound-guided stellate ganglion block |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780673/ https://www.ncbi.nlm.nih.gov/pubmed/31461935 http://dx.doi.org/10.3390/jcm8091314 |
work_keys_str_mv | AT yooyongjae arandomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT leechangsoon arandomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT kimyongchul arandomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT moonjeeyoun arandomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT finlaysonroderickj arandomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT yooyongjae randomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT leechangsoon randomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT kimyongchul randomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT moonjeeyoun randomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock AT finlaysonroderickj randomizedcomparisonbetween46and8mloflocalanestheticforultrasoundguidedstellateganglionblock |