HysteroscopyNCT06092541
Pericervical Analgesia Versus Analesia With Nitrous Oxide (N2O) in Outpatien Operative Hysteroscopy With Miniresector
A study testing Intervention Group: pericervical anesthesia and Nitroux Oxide anesthesia in people with Hysteroscopy, run by Ospedale degli Infermi di Biella at 1 site in Italy.
Trial summary
This research will have the aim of evaluating and comparing the effectiveness of two methods (analgesia with nitrous oxide and pericervical analgesia, excluding the use of paracervical block due to the increased risk of complications reported in the literature in the control of pain caused during Outpatient Operative… Read more about this study
- Who is it for?
- Ages 25 to 50 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Hysteroscopy
- What is being tested?
- Intervention Group: pericervical anesthesia and Nitroux Oxide anesthesia
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteItaly
- Study dates
- 2 Oct 2023to 2 May 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 50 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- nulliparous or primiparous women (a previous Spontaneous Vaginal Birth -PS- or a previous Cesarean Section -TC- the latter comparable to nulliparous women as no previous cervical dilation -)
- age between 25 and 50 years
Who cannot join
- age < 25 or > 50 years
- multiparity
- positive history of previous operations on the cervical canal (e.g. conization)
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Comparison of Efficacy Between Nitrous Oxide (n2o) Analgesia and Pericervical Analgesia in Outpatient Operative Hysteroscopy With Miniresector: a Randomized Clinical Pilot Study
This research will have the aim of evaluating and comparing the effectiveness of two methods (analgesia with nitrous oxide and pericervical analgesia, excluding the use of paracervical block due to the increased risk of complications reported in the literature in the control of pain caused during Outpatient Operative Hysteroscopy maneuvers with Miniresector.
Read the detailed description
Pain is the primary cause of hysteroscopy failure. It can be attributed to multiple causes, such as manipulation of the cervical canal , uterine distention due to the liquid distension media used during the procedure , operating procedures on the endometrium (as a possible cause of uterine contraction) , until the release of prostaglandins following manipulation of the cervix and uterine distension.
There are few studies in the literature that have compared the various methods of pain control during the hysteroscopic examination. Among these, Ahmad et al., for example, compared the use of the paracervical block and inhalation anesthesia during hysteroscopy: although both proved to be effective in controlling pain, the paracervical block was associated with a greater number of complications. More recently, Solano et al. they defined how the administration of nitrous oxide was equally effective (but with many more advantages) to the paracervical block with 1% lidocaine in controlling pain during hysteroscopy performed using the Bettocchi hysteroscope.
However, for the purposes of this research it is important to take two aspects into consideration:
- all the studies in the literature that compared the various pain control methods during hysteroscopy were conducted using the Bettocchi Hysteroscope and not the Miniresector;
- more in detail, there are no studies comparing the use of nitrous oxide and pericervical analgesia during outpatient operative hysteroscopy with miniresector.
Objective This clinical trial will have the aim of evaluating and comparing the effectiveness of two methods (analgesia with nitrous oxide and pericervical analgesia, excluding the use of paracervical block due to the increased risk of complications reported in the literature1) in the control of pain caused during Outpatient Operative Hysteroscopy maneuvers with Miniresector.
- Conditions
- Hysteroscopy
- Being tested
- Intervention Group: pericervical anesthesia, Nitroux Oxide anesthesia
- Keywords
- hysteroscopy, pain control, pericervical anesthesia, nitrous oxide
- Medical subject headings
- Agnosia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intervention Group: pericervical anesthesiaDrug
Also called Pericervical Anesthesia
Patients assigned to the Intervention Group will receive Pericervical anesthesia before performing Hysteroscopy.
Specifically, for the administration of pericervical analgesia, Mepivacaine/Lidocaine 1.5% 10/15 ml (max dose 7 mg/kg) will be used and pericervical infiltration will be performed at 0.5 cm depth at 3 and 9 hours.
Nitroux Oxide anesthesiaOther
Also called N2O2 Anesthesia
Patients assigned to the Control Group will receive Nitrous Oxide anesthesia before hysteroscopy
| Study group | Role | What they receive |
|---|---|---|
| Intervention group: pericervical anesthesia | Experimental | Intervention group: pericervical anesthesia Receives: Drug: Intervention Group: pericervical anesthesia |
| Control group: nitrous oxide anesthesia | Active comparator | Control group: nitrous oxide anesthesia Receives: Other: Nitroux Oxide anesthesia |
What is being measured
The primary outcome is the main question the study is designed to answer.
Rate of pain, measured through the Visual Analog Scale 1 (no pain) to 10 (worse pain) using Pericervical Analgesia versus Analgesia with Nitrous Oxide in outpatient hysteroscopic surgery with Miniresector
Change From Baseline in Pain Scores on the Visual Analog Scale -VAS- using Pericervical Analgesia versus Analgesia with Nitrous Oxide in outpatient hysteroscopic surgery with Miniresector
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Oct 2023
- Study start2 Oct 2023
- Primary completion2 May 2024
- Study completion2 May 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for HysteroscopyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Single-blind, randomized clinical pilot study with masked third-party assessment. Patients will be assigned to the two groups (pericervical analgesia / nitrous oxide) through the sealed envelope method.
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ospedale degli Infermi di Biella
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Bianca Masturzo, Ospedale degli Infermi di Biella
- Investigators
- Bianca Masturzo, MD PhD, Principal investigator, Ospedale degli Infermi Biella
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06092541
- Sponsor's protocol ID
- CE 130/2023
- Status last verified
- May 2024
- First submitted
- 4 Oct 2023
- Last updated
- 10 May 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: All collected IPD
Publications
Dealberti D, Riboni F, Prigione S, Pisani C, Rovetta E, Montella F, Garuti G. New mini-resectoscope: analysis of preliminary quality results in outpatient hysteroscopic polypectomy. Arch Gynecol Obstet. 2013 Aug;288(2):349-53. doi: 10.1007/s00404-013-2754-7. Epub 2013 Feb 16.
PubMed 23417150Ahmad G, Saluja S, O'Flynn H, Sorrentino A, Leach D, Watson A. Pain relief for outpatient hysteroscopy. Cochrane Database Syst Rev. 2017 Oct 5;(10)(10):CD007710. doi: 10.1002/14651858.CD007710.pub3.
PubMed 35611933Meyer L, Moore J, McMillan L. Outpatient Hysteroscopy in the Management of Abnormal Vaginal Bleeding. J Am Assoc Gynecol Laparosc. 1996 Aug;3(4, Supplement):S30-1. doi: 10.1016/s1074-3804(96)80239-8.
PubMed 9074183Zupi E, Luciano AA, Marconi D, Valli E, Patrizi G, Romanini C. The use of topical anesthesia in diagnostic hysteroscopy and endometrial biopsy. J Am Assoc Gynecol Laparosc. 1994 May;1(3):249-52. doi: 10.1016/s1074-3804(05)81018-7.
PubMed 9050495Solano Calvo JA, Del Valle Rubido C, Rodriguez-Miguel A, de Abajo FJ, Delgado Espeja JJ, Gonzalez Hinojosa J, Fernandez Munoz L, Zapico Goni A. Nitrous oxide versus lidocaine versus no analgesic for in-office hysteroscopy: a randomised clinical trial. BJOG. 2021 Jul;128(8):1364-1372. doi: 10.1111/1471-0528.16657. Epub 2021 Mar 9.
PubMed 33528862Del Valle Rubido C, Solano Calvo JA, Rodriguez Miguel A, Delgado Espeja JJ, Gonzalez Hinojosa J, Zapico Goni A. Inhalation analgesia with nitrous oxide versus other analgesic techniques in hysteroscopic polypectomy: a pilot study. J Minim Invasive Gynecol. 2015 May-Jun;22(4):595-600. doi: 10.1016/j.jmig.2015.01.005. Epub 2015 Jan 14.
PubMed 25596171De Silva PM, Carnegy A, Graham C, Smith PP, Clark TJ. Conscious sedation for office hysteroscopy: A systematic review and meta-analysis. Eur J Obstet Gynecol Reprod Biol. 2021 Nov;266:89-98. doi: 10.1016/j.ejogrb.2021.09.001. Epub 2021 Sep 3.
PubMed 34600190Vitale SG, Alonso Pacheco L, Haimovich S, Riemma G, De Angelis MC, Carugno J, Lasmar RB, Di Spiezio Sardo A. Pain management for in-office hysteroscopy. A practical decalogue for the operator. J Gynecol Obstet Hum Reprod. 2021 Jan;50(1):101976. doi: 10.1016/j.jogoh.2020.101976. Epub 2020 Nov 6.
PubMed 33166706De Silva PM, Mahmud A, Smith PP, Clark TJ. Analgesia for Office Hysteroscopy: A Systematic Review and Meta-analysis. J Minim Invasive Gynecol. 2020 Jul-Aug;27(5):1034-1047. doi: 10.1016/j.jmig.2020.01.008. Epub 2020 Jan 23.
PubMed 31982584Schneider EN, Riley R, Espey E, Mishra SI, Singh RH. Nitrous oxide for pain management during in-office hysteroscopic sterilization: a randomized controlled trial. Contraception. 2017 Mar;95(3):239-244. doi: 10.1016/j.contraception.2016.09.006. Epub 2016 Sep 9.
PubMed 27621048Munro MG, Brooks PG. Use of local anesthesia for office diagnostic and operative hysteroscopy. J Minim Invasive Gynecol. 2010 Nov-Dec;17(6):709-18. doi: 10.1016/j.jmig.2010.07.009.
PubMed 20955982Keyhan S, Munro MG. Office diagnostic and operative hysteroscopy using local anesthesia only: an analysis of patient reported pain and other procedural outcomes. J Minim Invasive Gynecol. 2014 Sep-Oct;21(5):791-8. doi: 10.1016/j.jmig.2014.03.006. Epub 2014 Mar 25.
PubMed 24681061De Iaco P, Marabini A, Stefanetti M, Del Vecchio C, Bovicelli L. Acceptability and pain of outpatient hysteroscopy. J Am Assoc Gynecol Laparosc. 2000 Feb;7(1):71-5. doi: 10.1016/s1074-3804(00)80012-2.
PubMed 10648742The Use of Hysteroscopy for the Diagnosis and Treatment of Intrauterine Pathology: ACOG Committee Opinion, Number 800. Obstet Gynecol. 2020 Mar;135(3):e138-e148. doi: 10.1097/AOG.0000000000003712.
PubMed 32080054Ahlbom A. Modern Epidemiology, 4th edition. TL Lash, TJ VanderWeele, S Haneuse, KJ Rothman. Wolters Kluwer, 2021. Eur J Epidemiol. 2021 Aug;36(8):767-768. doi: 10.1007/s10654-021-00778-w. Epub 2021 Jul 3. No abstract available.
PubMed 34216355
Study at a glance
From the registry record, last updated by the sponsor on 10 May 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Efficacy Between Nitrous Oxide (n2o) Analgesia and Pericervical Analgesia in Outpatient Operative Hysteroscopy With Miniresector: a Randomized Clinical Pilot Study
- ClinicalTrials.gov ID
- NCT06092541
- Acronym / sponsor ID
- CE 130/2023
- Conditions
- Hysteroscopy
- Keywords
- hysteroscopy, pain control, pericervical anesthesia, nitrous oxide
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- Ospedale degli Infermi di BiellaUniversity, hospital or other
- Study start
- 2 Oct 2023 (actual)
- Primary completion
- 2 May 2024 (actual)
- Study completion
- 2 May 2024 (actual)
- First posted
- 23 Oct 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This research will have the aim of evaluating and comparing the effectiveness of two methods (analgesia with nitrous oxide and pericervical analgesia, excluding the use of paracervical block due to the increased risk of complications reported in the literature in the control of pain caused during Outpatient Operative Hysteroscopy maneuvers with Miniresector.
Detailed description
Pain is the primary cause of hysteroscopy failure. It can be attributed to multiple causes, such as manipulation of the cervical canal , uterine distention due to the liquid distension media used during the procedure , operating procedures on the endometrium (as a possible cause of uterine contraction) , until the release of prostaglandins following manipulation of the cervix and uterine distension.
There are few studies in the literature that have compared the various methods of pain control during the hysteroscopic examination. Among these, Ahmad et al., for example, compared the use of the paracervical block and inhalation anesthesia during hysteroscopy: although both proved to be effective in controlling pain, the paracervical block was associated with a greater number of complications. More recently, Solano et al. they defined how the administration of nitrous oxide was equally effective (but with many more advantages) to the paracervical block with 1% lidocaine in controlling pain during hysteroscopy performed using the Bettocchi hysteroscope.
However, for the purposes of this research it is important to take two aspects into consideration:
- all the studies in the literature that compared the various pain control methods during hysteroscopy were conducted using the Bettocchi Hysteroscope and not the Miniresector;
- more in detail, there are no studies comparing the use of nitrous oxide and pericervical analgesia during outpatient operative hysteroscopy with miniresector.
Objective This clinical trial will have the aim of evaluating and comparing the effectiveness of two methods (analgesia with nitrous oxide and pericervical analgesia, excluding the use of paracervical block due to the increased risk of complications reported in the literature1) in the control of pain caused during Outpatient Operative Hysteroscopy maneuvers with Miniresector.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
- Model description
- Single-blind, randomized clinical pilot study with masked third-party assessment. Patients will be assigned to the two groups (pericervical analgesia / nitrous oxide) through the sealed envelope method.
| Arm | Type | Receives |
|---|---|---|
| Intervention group: pericervical anesthesia | Experimental | Drug: Intervention Group: pericervical anesthesiaIntervention group: pericervical anesthesia |
| Control group: nitrous oxide anesthesia | Active comparator | Other: Nitroux Oxide anesthesiaControl group: nitrous oxide anesthesia |
Who may qualify
- Ages
- 25 to 50 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- nulliparous or primiparous women (a previous Spontaneous Vaginal Birth -PS- or a previous Cesarean Section -TC- the latter comparable to nulliparous women as no previous cervical dilation -)
- age between 25 and 50 years
Key exclusion criteria (3 listed)
- age < 25 or > 50 years
- multiparity
- positive history of previous operations on the cervical canal (e.g. conization)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Intervention Group: pericervical anesthesiaAlso: Pericervical AnesthesiaPatients assigned to the Intervention Group will receive Pericervical anesthesia before performing Hysteroscopy. Specifically, for the administration of pericervical analgesia, Mepivacaine/Lidocaine 1.5% 10/15 ml (max dose 7 mg/kg) will be used and pericervical infiltration will be performed at 0.5 cm depth at 3 and 9 hours. | Drug | Intervention group: pericervical anesthesia |
| Nitroux Oxide anesthesiaAlso: N2O2 AnesthesiaPatients assigned to the Control Group will receive Nitrous Oxide anesthesia before hysteroscopy | Other | Control group: nitrous oxide anesthesia |
Primary outcome
Rate of pain, measured through the Visual Analog Scale 1 (no pain) to 10 (worse pain) using Pericervical Analgesia versus Analgesia with Nitrous Oxide in outpatient hysteroscopic surgery with Miniresector
Time frame: 6 months
Change From Baseline in Pain Scores on the Visual Analog Scale -VAS- using Pericervical Analgesia versus Analgesia with Nitrous Oxide in outpatient hysteroscopic surgery with Miniresector
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 May 2024.
- Background: PubMed 23417150Dealberti D, Riboni F, Prigione S, Pisani C, Rovetta E, Montella F, Garuti G. New mini-resectoscope: analysis of preliminary quality results in outpatient hysteroscopic polypectomy. Arch Gynecol Obstet. 2013 Aug;288(2):349-53. doi: 10.1007/s00404-013-2754-7. Epub 2013 Feb 16.
- Background: PubMed 35611933Ahmad G, Saluja S, O'Flynn H, Sorrentino A, Leach D, Watson A. Pain relief for outpatient hysteroscopy. Cochrane Database Syst Rev. 2017 Oct 5;(10)(10):CD007710. doi: 10.1002/14651858.CD007710.pub3.
- Background: PubMed 9074183Meyer L, Moore J, McMillan L. Outpatient Hysteroscopy in the Management of Abnormal Vaginal Bleeding. J Am Assoc Gynecol Laparosc. 1996 Aug;3(4, Supplement):S30-1. doi: 10.1016/s1074-3804(96)80239-8.
- Background: PubMed 9050495Zupi E, Luciano AA, Marconi D, Valli E, Patrizi G, Romanini C. The use of topical anesthesia in diagnostic hysteroscopy and endometrial biopsy. J Am Assoc Gynecol Laparosc. 1994 May;1(3):249-52. doi: 10.1016/s1074-3804(05)81018-7.
- Background: PubMed 33528862Solano Calvo JA, Del Valle Rubido C, Rodriguez-Miguel A, de Abajo FJ, Delgado Espeja JJ, Gonzalez Hinojosa J, Fernandez Munoz L, Zapico Goni A. Nitrous oxide versus lidocaine versus no analgesic for in-office hysteroscopy: a randomised clinical trial. BJOG. 2021 Jul;128(8):1364-1372. doi: 10.1111/1471-0528.16657. Epub 2021 Mar 9.
- Background: PubMed 25596171Del Valle Rubido C, Solano Calvo JA, Rodriguez Miguel A, Delgado Espeja JJ, Gonzalez Hinojosa J, Zapico Goni A. Inhalation analgesia with nitrous oxide versus other analgesic techniques in hysteroscopic polypectomy: a pilot study. J Minim Invasive Gynecol. 2015 May-Jun;22(4):595-600. doi: 10.1016/j.jmig.2015.01.005. Epub 2015 Jan 14.
- Background: PubMed 34600190De Silva PM, Carnegy A, Graham C, Smith PP, Clark TJ. Conscious sedation for office hysteroscopy: A systematic review and meta-analysis. Eur J Obstet Gynecol Reprod Biol. 2021 Nov;266:89-98. doi: 10.1016/j.ejogrb.2021.09.001. Epub 2021 Sep 3.
- Background: PubMed 33166706Vitale SG, Alonso Pacheco L, Haimovich S, Riemma G, De Angelis MC, Carugno J, Lasmar RB, Di Spiezio Sardo A. Pain management for in-office hysteroscopy. A practical decalogue for the operator. J Gynecol Obstet Hum Reprod. 2021 Jan;50(1):101976. doi: 10.1016/j.jogoh.2020.101976. Epub 2020 Nov 6.
- Background: PubMed 31982584De Silva PM, Mahmud A, Smith PP, Clark TJ. Analgesia for Office Hysteroscopy: A Systematic Review and Meta-analysis. J Minim Invasive Gynecol. 2020 Jul-Aug;27(5):1034-1047. doi: 10.1016/j.jmig.2020.01.008. Epub 2020 Jan 23.
- Background: PubMed 27621048Schneider EN, Riley R, Espey E, Mishra SI, Singh RH. Nitrous oxide for pain management during in-office hysteroscopic sterilization: a randomized controlled trial. Contraception. 2017 Mar;95(3):239-244. doi: 10.1016/j.contraception.2016.09.006. Epub 2016 Sep 9.
- Background: PubMed 20955982Munro MG, Brooks PG. Use of local anesthesia for office diagnostic and operative hysteroscopy. J Minim Invasive Gynecol. 2010 Nov-Dec;17(6):709-18. doi: 10.1016/j.jmig.2010.07.009.
- Background: PubMed 24681061Keyhan S, Munro MG. Office diagnostic and operative hysteroscopy using local anesthesia only: an analysis of patient reported pain and other procedural outcomes. J Minim Invasive Gynecol. 2014 Sep-Oct;21(5):791-8. doi: 10.1016/j.jmig.2014.03.006. Epub 2014 Mar 25.
- Individual participant dataSharing planned: Yes. All collected IPD
Related trials for Hysteroscopy
Not yet recruiting
Office Hysteroscopy Versus Operating-room Hysteroscopy for Uterine Lesions
Uterine Polyps, Uterine Fibroids
Enrolling by invitationPhase 1
Combined Ketorolac and Lidocaine Paracervical Block for Office Hysteroscopy
Abnormal Uterine Bleeding, Analgesia
RecruitingObservational study
Comparison of Operative Hysteroscopy and Vacuum Aspiration for Terminating First-trimester Pregnancy With Intrauterine Adhesions
Pregnancy Complicated With Intrauterine Adhesion
Recruiting
Office Hysteroscopy in Postmenopausal Women: A Randomized Trial of Cervical Preparation Strategies
Postmenopausal Women, Intrauterine Diseases
Not yet recruitingObservational study
Predictors of Successful Office Operative Hysteroscopy Using a Mini-Resectoscope
Retained Products of Conception, Hysteroscopy
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Bianca Masturzo, MD PhD principal investigator
Ospedale degli Infermi Biella
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Intervention Group: pericervical anesthesia and Nitroux Oxide anesthesia in people with Hysteroscopy, run by Ospedale degli Infermi di Biella at 1 site in Italy.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 May 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Rate of pain, measured through the Visual Analog Scale 1 (no pain) to 10 (worse pain) using Pericervical Analgesia versus Analgesia with Nitrous Oxide in outpatient hysteroscopic surgery with Miniresector (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06092541, which also lists 15 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 May 2024.