The Skin-to-epidural distance of parturients by ultrasonography: sitting position versus left lateral position
Anesthesia and Pain Medicine
; : 132-136, 2017.
Article
em En
| WPRIM
| ID: wpr-28776
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND: Pre-procedural lumbar ultrasound scanning is a reliable tool to estimate the skin to epidural distance (SED). We conducted an observational study to compare the SED between the sitting position and lateral position using pre-procedural ultrasound imaging of the lumbar spine in parturients. METHODS: Using a 2–5 MHz curvilinear transducer, we obtained images of the lumbar interspaces from L2-3 to L5-S1 in the paramedian sagittal oblique view. The individual distance from the skin to the ligamentum flavum-dura mater unit was measured at the level of L2-3, L3-4, L4-5, and L5-S1 in the left lateral position (distance in lateral position; D-lat). Subsequently, participants were placed in the sitting position, and the distance was measured in the same manner (distance in sitting position; D-sit). Data were grouped according to body mass index (BMI; kg/m²) measurements of ≥ 25 or < 25 and analyzed. The primary outcome was the change determined by ultrasound between D-lat and D-sit at the same lumbar level according to position. RESULTS: Thirty parturients were studied. The difference between D-lat and D-sit in the same lumbar level was not statistically significant. The mean changes between D-lat and D-sit in the same lumbar level were less than 0.18 cm. In BMI ≥ 25 group, the difference between D-lat and D-sit were greater than that of BMI < 25 group at L3-4 level (P = 0.042). CONCLUSIONS: It is important for clinicians to consider that position change is associated with greater differences in SED in obese parturients (BMI ≥ 25) compared with thin parturients (BMI < 25). For obese parturients, the sitting position may be helpful.
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Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Pele
/
Coluna Vertebral
/
Transdutores
/
Índice de Massa Corporal
/
Ultrassonografia
/
Estudo Observacional
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
Idioma:
En
Revista:
Anesthesia and Pain Medicine
Ano de publicação:
2017
Tipo de documento:
Article