An observational study in Epidural Anesthesia in Labor and Delivery, Pain During Delivery and Perineal Pain, sponsored by University Hospital, Toulouse. Not yet recruiting. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-09.
Sponsored by University Hospital, Toulouse · Observational
Insufficient perineal coverage can cause pain as the baby's head emerges, a condition that affects 30% of patients. Currently, there is no consensus on which cold-test site is most predictive of this pain.
Detecting a block that does not extend to the sacral roots is crucial for anticipating the pain experienced during the emergence of the baby's head. Identifying the most predictive testing site would allow the anesthesiologist to anticipate this pain and adjust analgesic management accordingly.
Epidural analgesia (ED) is the gold standard for pain relief during labor. An accurate assessment of its sensory and motor coverage is essential to ensure both effective pain relief and patient safety. Insufficient perineal coverage can cause pain as the baby's head emerges, a condition that affects 30% of patients. Currently, there is no consensus on which cold-test site is most predictive of this pain. Several dermatomal areas can be assessed at the patient's bedside: the outer edge of the foot (S1 root), the posterior aspect of the thigh (S1-S2 roots), and the perianal region (S3-S4-S5 roots). A direct comparison of these three sites, tested on the same patient upon admission for delivery, has not been established.
Detecting a block that does not extend to the sacral roots is crucial for anticipating the pain experienced during the emergence of the baby's head. Identifying the most predictive testing site would allow the anesthesiologist to anticipate this pain and adjust analgesic management accordingly.
10,054 studies on the registry are indexed under Pain; 1,649 are open to participants now.
This study's planned enrollment of 340 is above the median of 100 across 1,252 observational studies indexed under Pain.
Browse Pain studies →University Hospital, Toulouse is the lead sponsor of 807 studies on the registry; 209 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Pregnant patients from University Hospital of Toulouse
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Pregnant woman, Singleton pregnancy ≥ 37 weeks of amenorrhea, Indications for epidural analgesia during spontaneous labor, Cephalic presentation
diagnostic performance comparison of three sites for testing sensitivity to cold
Composite criterium: diagnostic performance (sensitivity, specificity, positive and negative predictive values, area under the ROC curve) comparison of three sites for testing sensitivity to cold-the outer edge of the foot, the posterior thigh, and the perianal region-to predict the onset of pain upon the emergence of the fetal head, defined as an intensity of ≥ 4/10 on the numerical scale (NS), in parturients under epidural analgesia.
Time frame: Day 0 (emergence of the fetal head)
No study locations are listed for this record.
Plan to share: Undecided
No publications or documents are linked to this record.
Start is estimated for Nov 2026; primary completion for May 2027, 6 months later.
Of 504 non-industry observational studies under Pain, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 42. This study's planned 6 months is below that.
Counting every sponsor, half of 519 studies reached it within 18 months; a quarter within 8 and three quarters within 41.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Nov 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
University Hospital, Toulouse →