Change in Skin Temperatures in Lumbar Sympathetic
Ganglion Block Showing Three Different Contrast
Spread Patterns |
Change in Skin Temperatures in Lumbar Sympathetic
Ganglion Block Showing Three Different Contrast
Spread Patterns |
Ji Hee Hong; Ae Ra Kim; Chan Jin Kim; Min Ju Oh |
|
|
Abstract |
We hypothesized that if a fluoroscopic image of the lumbar sympathetic ganglion
block (LSGB) showed the spread patterns of contrast at both the L2/3 and L4/5 disc areas; then
this would demonstrate a more profound blockade effect because the spread patterns are close to
sympathetic ganglia. Forty five patients were classified into three groups(Group A : contrast
spreads at the ventral side of both L2-L3 and L4-L5 disc areas; Group B : contrast spreads at
one disc level of L2-L3 or L4-L5; Group C : no contrast spreads around either L2-L3 or L4-L5
disc areas) according to their contrast spread pattern. Preblock and maximum postblock
temperature (Tpre; Tpost; ℃); the preblock temperature difference between the ipsilateral and
contralateral great toe (DTpre; ℃); and the postblock temperature difference between the
ipsilateral and contralateral great toe (DTpost; ℃) were measured and calculated. DTnet was
calculated as follows. DTnet = DTpost -DTpre. Group A showed the most significant changes in DTpost
(7.5 ± 1.2℃; p = 0.015); and DTnet (6.9 ± 1.0℃; p = 0.017) compared to group C. Other
parameters including T1℃; Tpre; Tpost; and DTpre were similar between groups. Group A showed
significant sympatholytic effect compared to group C. To obtain a more complete sympathetic
block; assessing the contrast spread pattern after the LSGB is an important step as well as
measuring skin temperature. |
Key Words:
Lumbar sympathetic ganglion block, Skin temperature |