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Whats the difference between a membrane sweep and a cervical check? 

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Because there was no statistically significant difference in sensitivity and specificity of the two techniques, improved detection of cervical abnormalities and better specimen adequacy might not be a consequence of utilizing liquid-based preparations but of a better sampling technique.
Cervical massage is hence an effective and safe alternative to membrane sweeping when the latter cannot be performed owing to a closed cervical os.
These regional differences have two important implications in that: (i) the cervical membrane may represent a region of structural weakness susceptible to rupture during labour, and (ii) the paracrine relationships between fetal membranes and the myometrium may be qualitatively affected within different regions of the uterus.
The complication rates with cervical massage are comparable to membrane sweeping.
The difference in MGL of the ultrasound gray-level histogram may enable objective evaluation of cervical consistency.
Journal ArticleDOI
John Owen, Jay D. Iams 
26 Citations
These reports and other clinical data support the concept that cervical competence is not a dichotomous variable, but more likely functions along a continuum that is reflected by the relationship between cervical length and reproductive outcomes.
Cervical ultrasound assessment of the cervix prior to membrane sweeping is associated with spontaneous vaginal birth within 24 and 48 hours from the procedure.
In particular, the discrimination between normal cervical squamous epithelium and CIN is of relevance to cervical screening pathology.
RESULTS We present reflectance and fluorescence confocal images of cervical tissue demonstrating the ability to differentiate between normal and abnormal cervical tissue.
These results suggest that the backscattered power difference, but perhaps not attenuation, may be a useful clinical biomarker of cervical remodeling.

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