Spraying low‑concentration lidocaine under the diaphragm to reduce shoulder pain after single‑port gynecologic laparoscopy

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This single‑center, randomized controlled study at Peking Union Medical College Hospital enrolled 100 women undergoing elective single‑port laparoscopic surgery for benign gynecologic conditions (such as uterine fibroids and ovarian cysts). Participants were randomized 1:1 to receive either 50 ml of 0.08% lidocaine sprayed on the bilateral subdiaphragmatic regions at the start of surgery or standard ERAS care without additional pharmaceutical intervention. The trial measured postoperative acute pain and psychological status to determine whether the subdiaphragmatic lidocaine spray improves comfort after surgery. Patients meeting inclusion criteria were adult females (18–65 years) with ASA I–II who provided informed consent.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age: Female patients aged 18-65 years;
* Clear preoperative diagnosis, suitable for single-port laparoscopic surgery, and American Society of Anesthesiologists (ASA) physical status classification I-II;
* Patients or their family members can understand the study protocol, are willing to participate in the study, and provide written informed consent.

Exclusion Criteria:

* Allergy to lidocaine or amide-type local anesthetics;
* Severe medical comorbidities;
* Long-term preoperative use of opioid drugs or sedatives;
* Pregnant or lactating women;
* Conversion to laparotomy or addition of surgical ports during surgery.

Where it's running

• Peking Union Medical College
  Beijing, Beijing Municipality, China Recruiting

Study contacts

• Study coordinator: Dr.
• Email: renchang@pumch.cn
• Phone: +86 18612671870

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.