scholarly journals Effect of Needle Tip Position on Contrast Media Dispersion Pattern in Transforaminal Epidural Injection Using Kambin’s Triangle Approach

2020 ◽  
Vol Volume 13 ◽  
pp. 2869-2878
Author(s):  
Jongseok Lee ◽  
Daehyun Jo ◽  
Shinmi Song ◽  
Dahee Park ◽  
Dohyeong Kim ◽  
...  
Keyword(s):  
Contrast Media ◽  
Epidural Injection ◽  
Dispersion Pattern ◽  
Transforaminal Epidural Injection ◽  
Tip Position

scholarly journals Correlation of Perfusion Index Change and Analgesic Efficacy in Transforaminal Block for Lumbosacral Radicular Pain

2019 ◽  
Vol 8 (1) ◽  
pp. 51 ◽  
Author(s):  
Jin Young Lee ◽  
Eung Don Kim ◽  
Yoo Na Kim ◽  
Ji Seob Kim ◽  
Woo Seog Sim ◽  
...  
Keyword(s):  
Area Under The Curve ◽  
Analgesic Efficacy ◽  
Epidural Injection ◽  
Pain Reduction ◽  
Radicular Pain ◽  
Perfusion Index ◽  
Objective Method ◽  
Peripheral Perfusion ◽  
Index Change ◽  
Transforaminal Epidural Injection

Transforaminal epidural injection is used to treat radicular pain. However, there is no objective method of assessing pain relief following transforaminal injection. Perfusion index is a metric for monitoring peripheral perfusion status. This study evaluates the correlation between perfusion index change and analgesic efficacy in transforaminal blocks for lumbosacral radicular pain. We retrospectively analyzed data of 100 patients receiving transforaminal block for lumbosacral radicular pain. We assessed perfusion index before treatment and at 5, 15, and 30 min following the block. We defined responders (group R) and non-responders (group N) as those with ≥50% and <50% pain reduction, respectively, 30 min following block. Clinical data and perfusion index of the groups were analyzed. Ninety-two patients were examined, of whom 57 (61.9%) and 35 (38.0%) patients reported ≥50% and <50% pain reduction, respectively. Group R had a significantly higher perfusion index change ratio 5 min following the block (p = 0.029). A perfusion index change ratio of ≥0.27 was observed in group R (sensitivity, 75.4%; specificity, 51.4%; AUC (area under the curve), 0.636; p = 0.032). A perfusion index change ratio of ≥0.27 at 5 min after block is associated with, but does not predict improvement in, pain levels following lumbosacral transforaminal block.

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