Obstetric Anesthesia Problems
Conditions
Brief summary
Our aim is to investigate whether a novel landmark, the groove between the buttocks or the intergluteal cleft, can facilitate the identification of the neuraxial midline in obstetric patients when compared to ultrasound as the reference standard for the determination of this midline
Detailed description
Determine if the intergluteal cleft, when compared to ultrasound as the reference standard, can be used to identify the neuraxial midline in obstetric patients Difference in horizontal distance between the vertical lines of the intergluteal cleft and the neuraxial midline, the latter measured with ultrasound
Interventions
DIAGNOSTIC_TESTIntergluteal Cleft
Marking of intersection between inferior aspect of the intergluteal cleft and the horizontal intercristal line
DIAGNOSTIC_TESTNeuraxial Midline
Marking of intersection between the neuraxial midline, as established with the transverse spinous process view on ultrasound, and the horizontal intercristal line
DIAGNOSTIC_TESTHorizontal Distance between Vertical Markings
The horizontal distance between these two vertical marks will be measured at the level of the intercristal line
Sponsors
Guy's and St Thomas' NHS Foundation Trust
Study design
Observational model
CASE_CROSSOVER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Female * 18 years of age or older * Gestation of 37 weeks or above
Exclusion criteria
* Acute or chronic confusional state * Allergy to ultrasound gel * Positive for COVID-19 and/or presence of symptoms consistent with SARS-Cov-2, such as anosmia, cough or fever * History of previous surgery to the spine * Scoliosis * Unable to speak and/or understand English
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Horizontal distance between intergluteal cleft and neuraxial midline | 12 months | One horizontal distance and hence one primary outcome |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Difference in horizontal distance stratified by body mass index | 12 months | Variation for BMI and recorded data |
| Difference in horizontal distance stratified by presence of pre-eclampsia | 12 months | Variation for pre-ecalmpsia and recorded data |
| Difference in horizontal distance stratified by presence of pregnancy induced hypertension | 12 months | Variation for pregnancy induced hypertension a and recorded data |
Countries
United Kingdom
Contacts
STUDY_CHAIRGill Arbane, BSc
Guys' & St Thomas' NHS Foundation Trust
Outcome results
None listed