Overview
The objective of this study is to to determine whether 1% lidocaine paracervical block reduces pain during endometrial biopsy in comparison to no intervention.
The proposed study is a double-blind randomized controlled trial (RCT).
Each participant will be randomly assigned to one of two arms:
- intervention (paracervical block - 10 mL 1% lidocaine with epinephrine)
- control (gently tapping the cervicovaginal junction with a capped needle)
The primary outcome will be a global pain score, which will be patient-reported by the 100 mm Visual Analogue Scale (VAS) following the procedure.
Eligibility
Inclusion Criteria
- Any participant > or = age 18 years old presenting for an endometrial biopsy
- All parities of patients are eligible
- English speaking participants only
Exclusion Criteria
- Use of pain medication that is not an NSAID or acetaminophen (e.g. opioids, benzos) within past 24 hours
- Confirmed pregnancy
- Any diagnosed chronic pain syndromes (eg. fibromyalgia, vaginismus, interstitial cystitis)
- Contraindication to lidocaine
- Misoprostol administration within 24 hours
- Previous unsuccessful office attempt at endometrial biopsy by the same practitioner (note of clarification: previous unsuccessful biopsy attempt by a different practitioner will still be eligible)