A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block

Background and Aims: Perfusion index (PI) is a new simple, objective and non-invasive method for evaluation of the success of central neuraxial and peripheral nerve blocks. So, we conducted a study with an aim to evaluate PI as an indicator for success of ultrasound-guided supraclavicular block (SCB...

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Autores principales:	Jatin Lal, Mamta Bhardwaj, Aanchal Malik, Teena Bansal
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	brachial plexus block perfusion index peripheral nerve block ultrasound guided Anesthesiology RD78.3-87.3
Acceso en línea:	https://doaj.org/article/b292c4a23ff141b1991f0e31f7e7f95f
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spelling	oai:doaj.org-article:b292c4a23ff141b1991f0e31f7e7f95f2021-11-12T10:10:47ZA study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block0019-50490976-281710.4103/ija.ija_553_21https://doaj.org/article/b292c4a23ff141b1991f0e31f7e7f95f2021-01-01T00:00:00Zhttp://www.ijaweb.org/article.asp?issn=0019-5049;year=2021;volume=65;issue=10;spage=738;epage=743;aulast=Lalhttps://doaj.org/toc/0019-5049https://doaj.org/toc/0976-2817Background and Aims: Perfusion index (PI) is a new simple, objective and non-invasive method for evaluation of the success of central neuraxial and peripheral nerve blocks. So, we conducted a study with an aim to evaluate PI as an indicator for success of ultrasound-guided supraclavicular block (SCB). Methods: 65 patients of either sex, age 18–60 years, American Society of Anesthesiologists physical status I and II posted for upper limb surgery under ultrasound (US)-guided SCB were included. PI was recorded at baseline every 2 minutes till 10 minutes and then every 5 minutes till 30 minutes after block. PI ratio was calculated as the ratio between PI at 10 minutes and baseline PI. Sensory and motor blocks were assessed at 5-minutes intervals up to 30 minutes. Descriptive analysis was applied by mean and standard deviation for quantitative, frequency and proportion for categorical variables. Results: Mean PI increased continuously from baseline and reached the maximum at 10 minutes and then slightly decreased up to 30 minutes, but values at subsequent time intervals were quite high as compared to baseline. In case of successful blocks, median PI started increasing 2 minutes after the block and then increased in a linear fashion till 10 minutes, whereas in case of failed blocks, it only increased minimally. Conclusion: PI is an objective and faster indicator for evaluating success of US-guided SCB. A cut-off value of 3.25 for PI and 3.03 for PI ratio showed a fairly good ability with high sensitivity and specificity for predicting the success of SCB.Jatin LalMamta BhardwajAanchal MalikTeena BansalWolters Kluwer Medknow Publicationsarticlebrachial plexus blockperfusion indexperipheral nerve blockultrasound guidedAnesthesiologyRD78.3-87.3ENIndian Journal of Anaesthesia, Vol 65, Iss 10, Pp 738-743 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	brachial plexus block perfusion index peripheral nerve block ultrasound guided Anesthesiology RD78.3-87.3
spellingShingle	brachial plexus block perfusion index peripheral nerve block ultrasound guided Anesthesiology RD78.3-87.3 Jatin Lal Mamta Bhardwaj Aanchal Malik Teena Bansal A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
description	Background and Aims: Perfusion index (PI) is a new simple, objective and non-invasive method for evaluation of the success of central neuraxial and peripheral nerve blocks. So, we conducted a study with an aim to evaluate PI as an indicator for success of ultrasound-guided supraclavicular block (SCB). Methods: 65 patients of either sex, age 18–60 years, American Society of Anesthesiologists physical status I and II posted for upper limb surgery under ultrasound (US)-guided SCB were included. PI was recorded at baseline every 2 minutes till 10 minutes and then every 5 minutes till 30 minutes after block. PI ratio was calculated as the ratio between PI at 10 minutes and baseline PI. Sensory and motor blocks were assessed at 5-minutes intervals up to 30 minutes. Descriptive analysis was applied by mean and standard deviation for quantitative, frequency and proportion for categorical variables. Results: Mean PI increased continuously from baseline and reached the maximum at 10 minutes and then slightly decreased up to 30 minutes, but values at subsequent time intervals were quite high as compared to baseline. In case of successful blocks, median PI started increasing 2 minutes after the block and then increased in a linear fashion till 10 minutes, whereas in case of failed blocks, it only increased minimally. Conclusion: PI is an objective and faster indicator for evaluating success of US-guided SCB. A cut-off value of 3.25 for PI and 3.03 for PI ratio showed a fairly good ability with high sensitivity and specificity for predicting the success of SCB.
format	article
author	Jatin Lal Mamta Bhardwaj Aanchal Malik Teena Bansal
author_facet	Jatin Lal Mamta Bhardwaj Aanchal Malik Teena Bansal
author_sort	Jatin Lal
title	A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
title_short	A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
title_full	A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
title_fullStr	A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
title_full_unstemmed	A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
title_sort	study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/b292c4a23ff141b1991f0e31f7e7f95f
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A study to evaluate the change in perfusion index as an indicator of successful ultrasound-guided supraclavicular block

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