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This letter to the editor responds to a study on the effectiveness of an Erector Spinae Plane Block (ESPB) in reducing opioid consumption and pain in patients undergoing minimally invasive posterior stabilization. The authors of the letter raise concerns about the study's methodology, including the absence of study registration and the lack of adherence to reporting guidelines. They also question the accuracy and interpretation of the visual analogue scale (VAS) measurements used in the study. Ultimately, the authors disagree with the conclusions drawn by the original study and suggest a more valid conclusion would be that there were no statistically significant differences in opioid consumption and VAS for pain during the first 48 hours after surgery. [Extracted from the article]

This article describes nanocomposites of triblock copolymer styrene–ethylene/butylene–styrene doping with 5 wt% of multiwalled carbon nanotubes (CNTs) prepared by melt mixing process. The selection of processing temperature was made according to the state of macrodispersion of CNTs within polymer matrix. Afterwards, the relationship between rotational speed, mixing time and electrical conductivity has been noted. It was confirmed that the temperature of 300°C and rotational speed of 100 r/min lead to significant decreasing of CNT agglomerations resulting in high electrical conductivity equal to 8.0 S/m. [ABSTRACT FROM AUTHOR]