A new application for near-infrared spectroscopy in regional anesthesia?

Tsai, Phil B; Tokhner, Vadim; Li, Jichang; Kakazu, Clinton

doi:10.1007/s00540-010-1052-9

Cited by 2 publications

(5 citation statements)

References 4 publications

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“…Significant increases in StO2 values were observed within 5 min after the completion of the block, which occurred before the patients perceived sensory and motor loss. 8 Various other subsequent studies in which peripheral nerve blocks were performed in the lower and upper extremities reported that there were statistically significant differences in StO2 values in the blocked limbs and the control limbs. 15 In these studies, the increases were significant after the 5th minute, and there was a significant difference between the blocked limb and the non-blocked limb and that StO2 could successfully demonstrate peripheral nerve block as a noninvasive parameter.…”

Section: Discussionmentioning

confidence: 91%

“…These techniques include methods such as perfusion index (PI), plethysmographic variability index (PVI), non-invasive tissue hemoglobin monitoring (SpHb), tissue oxygen saturation (StO2), tissue hemoglobin index (THI), and body temperature. [6][7][8][9][10][11][12][13] This study is intended to compare the superiority of near infrared spectroscopy (NIRS), StO2, THI, PI, SpHb, and body temperature methods along with the routine vital signs and traditional methods in assessing the block success and adequacy of the infraclavicular brachial plexus block procedures that we applied under USG guidance in cases undergoing forearm surgery.…”

Section: Introductionmentioning

confidence: 99%

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Comparative of the Effectiveness of Different Objective Method for Infraclavicular Brachial Plexus Block Success; Which One of Them is A Reliable and Early Indicator?

Sengel¹,

Karahan

Altay

et al. 2021

Preprint

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BACKGROUND Traditional methods that evaluate the success of peripheral nerve block have been replaced by methods that allow objective evaluations over time. Multiple objective techniques for peripheral nerve block have been discussed in the literature. OBJECTIVE This study aims to investigate whether perfusion index (PI), non-invasive tissue hemoglobin monitoring (SpHb), tissue oxygen saturation (StO2), tissue hemoglobin index (THI) and body temperature are reliable and objective methods to evaluate the adequacy of infraclavicular blockage. DESIGN A prospective observational study. SETTING Single center, Department of Anesthesiology, Harran University Medical Faculty, Turkey, from February 2019 to December 2019. PATIENTS A total of 100 patients scheduled to undergo forearm surgery. INTERVENTION Ultrasound-guided infraclavicular block (ICB) in 100 patients undergoing forearm surgery. MAIN OUTCOME MEASURES PI, SpHb, StO2, THI and Body Temperature measurements were recorded 5 min before the block procedure, right after the procedure, and until the 25th minute after the procedure at 5-min intervals. These values were compared between the blocked limbs and non-blocked limbs while being statistically compared between the successful and failed block groups. RESULTS Although there were significant differences between the groups of blocked extremity and non-blocked extremity in terms of StO2 (P = 0.001), THI (P = 0.001), PI (P = 0.001) and body temperature (P = 0.001), there was no significant difference between these groups in terms of SpHb (P > 0.05). Moreover, a significant difference was detected between the groups of successful block and failed block in terms of StO2 (P = 0.002), PI (P = 0.002) and body temperature (P = 0.005), while there was no significant difference between these groups in terms of THI (P > 0.05) and SpHb (P > 0.05). CONCLUSION StO2, PI and body temperature measurements are the simple, objective, noninvasive techniques to be used to evaluate success of block procedures. According to The receiver operating characteristic (ROC) analysis, StO2 is the specific parameter with the highest sensitivity among these parameters.

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Comparative of the Effectiveness of Different Objective Method for Infraclavicular Brachial Plexus Block Success; Which One of Them is A Reliable and Early Indicator?

Sengel¹,

Karahan

Altay

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Significant increases in StO 2 values were observed within 5 min after the completion of the block, which occurred before the patients perceived sensory and motor loss. [8] Various other subsequent studies in which peripheral nerve blocks were performed in the lower and upper extremities reported that there were statistically significant differences in StO 2 values in the blocked limbs and the control limbs. [15] In these studies, the increases were significant after the 5 th min, and there was a significant difference between the blocked limb and the non-blocked limb and that StO 2 could successfully demonstrate peripheral nerve block as a non-invasive parameter.…”

Section: Figurementioning

confidence: 91%

“…[14] Although there have been publications about the use of StO 2 in evaluating peripheral nerve block success, there are few studies in the literature regarding its use to measure the success of peripheral block. [8,9,[15][16][17] In the first study, which showed that NIRS can capture the increase in local tissue perfusion occurring after the block, a 15% increase in oxygen saturation was detected in the limb that was performed block procedure after the brachial plexus blockage (interscalene, supraclavicular, infraclavicular, or axillary). Significant increases in StO 2 values were observed within 5 min after the completion of the block, which occurred before the patients perceived sensory and motor loss.…”

Section: Figurementioning

confidence: 99%

“…These techniques include methods such as perfusion index (PI), plethysmographic variability index, non-invasive tissue hemoglobin monitoring (SpHb), tissue oxygen saturation (StO 2 ), tissue hemoglobin index (THI), and body temperature. [6][7][8][9][10][11][12][13] This study is intended to compare the superiority of near infrared spectroscopy (NIRS), StO 2 , THI, PI, SpHb, and body temperature methods along with the routine vital signs and traditional methods in assessing the block success and adequacy of the infraclavicular brachial plexus block procedures that we applied under USG guidance in cases undergoing forearm surgery.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the efficacy of five different objective methods to evaluate the success of infraclavicular block; Which one of them is a reliable and early indicator?

Sengel¹

2023

Ulus Travma Acil Cerrahi Derg

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BACKGROUND:Traditional methods that evaluate the success of peripheral nerve block have been replaced by methods that allow objective evaluations over time. Multiple objective techniques for peripheral nerve block have been discussed in the literature. This study aims to investigate whether perfusion index (PI), non-invasive tissue hemoglobin monitoring (SpHb), tissue oxygen saturation (StO 2 ), tissue hemoglobin index (THI), and body temperature are reliable and objective methods to evaluate the adequacy of infraclavicular blockage. METHODS:Ultrasound-guided infraclavicular block in 100 patients undergoing forearm surgery. PI, SpHb, StO 2 , THI, and body temperature measurements was recorded 5 min before the block procedure, right after the procedure, and until the 25 th min after the procedure at 5-min intervals. These values were compared between the blocked limbs and non-blocked limbs while being statistically compared between the successful and failed block groups. RESULTS:Although there were significant differences between the groups of blocked extremity and non-blocked extremity in terms of StO 2 , THI, PI, and body temperature, there was no significant difference between these groups in terms of SpHb. Moreover, a significant difference was detected between the groups of successful block and failed block in terms of StO 2 , PI and body temperature, while there was no significant difference between these groups in terms of THI and SpHb. CONCLUSION: StO 2 , PI, and body temperature measurements are the simple, objective, and non-invasive techniques to be used to evaluate success of block procedures. According to the receiver operating characteristic analysis, StO 2 is the specific parameter with the highest sensitivity among these parameters.

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A new application for near-infrared spectroscopy in regional anesthesia?

Cited by 2 publications

References 4 publications

Comparative of the Effectiveness of Different Objective Method for Infraclavicular Brachial Plexus Block Success; Which One of Them is A Reliable and Early Indicator?

Comparative of the Effectiveness of Different Objective Method for Infraclavicular Brachial Plexus Block Success; Which One of Them is A Reliable and Early Indicator?

Comparison of the efficacy of five different objective methods to evaluate the success of infraclavicular block; Which one of them is a reliable and early indicator?

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