Distance from the Skin to the Epidural Space at the First Lumbar Interspace in a Japanese Obstetric Population
Hiroshima Journal of Medical Sciences Volume 52 Issue 2
Page 27-29
published_at 2003-06
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Title ( eng ) |
Distance from the Skin to the Epidural Space at the First Lumbar Interspace in a Japanese Obstetric Population
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Creator |
Shiroyama Kazuhisa
Izumi Hiromichi
Kubo Takashi
Nakamura Ryuji
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Contributors | 国立情報学研究所 |
Source Title |
Hiroshima Journal of Medical Sciences
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Volume | 52 |
Issue | 2 |
Start Page | 27 |
End Page | 29 |
Journal Identifire |
[PISSN] 0018-2052
[EISSN] 2433-7668
[NCID] AA00664312
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Abstract |
We prospectively examined the distance from the skin to the epidural space (SE distance) in 95 Japanese parturient women who underwent epidural anesthesia at the L1-2 interspace, and studied the correlation between various physical factors and SE distance. The same anesthesiologist inserted the epidural tubing with the patient in the right lateral decubitus position. An epidural needle was introduced into the skin vertically via the midline approach. The epidural space was located using the loss-of-resistance technique. SE distance was measured to the nearest 0.5 cm using centimeter markings on the shaft of the epidural needle. The median value of SE distance was 3.5 cm, with a range of 2.5 to 6.5 cm, and in 800f cases SE distances were 3 to 4 cm. The correlation of body weight with SE distance was the highest of the physical factors (r^2 = 0.800, p = 0.0001), and a simple regression equation was formulated to aid in predicting SE distance: 'SE distance (cm) = 0.05 × body weight (kg) + 0.36'. This formula will be a useful clinical guide for administering epidural anesthesia in Japanese parturient women. In conclusion, the SE distance in most Japanese parturient women is between 3 and 4 cm at the L1-2 interspace and this value is most closely correlated with their body weight.
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Keywords |
Distance
Epidural space
Lumbar interspace
Obstetric
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NDC |
Medical sciences [ 490 ]
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Language |
eng
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Resource Type | departmental bulletin paper |
Publisher |
Hiroshima University Medical Press
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Date of Issued | 2003-06 |
Publish Type | Version of Record |
Access Rights | open access |
Date |
[Created] 2006-03-21
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Source Identifier |
[ISSN] 0018-2052
[NCID] AA00664312
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