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Comparison of Two Bipolar Resector in Less Than 3cm Myoma Resection

Impact of the Diameter on the Performance of Two Bipolar Resectors 18.5Fr and 26Fr

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03402516
Acronym
DIAPER
Enrollment
308
Registered
2018-01-18
Start date
2017-11-01
Completion date
2022-03-31
Last updated
2021-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rate of Complete Resection in a Unique Surgical Time

Keywords

hysteroscopic myomectomy, 26Fr resector, 18.5Fr resector

Brief summary

Hysteroscopic resection of type 0, 1 or 2 myoma is frequent. The more frequent resector used for myoma resection is 26Fr hysteroscope. Actual miniaturization of resector led to 18.5Fr resector with a potential benefit because of less dilatation. These resectors are often used but no scientific evaluation has been performed. Hypothesis of this non inferiority trial is that complete resection in a unique surgical time will be comparable with both resectors.

Detailed description

Myoma type 0, 1 or 2 are often symptomatic (abnormal uterine bleeding or infertility) and hysteroscopic resections are thus frequent. This management is a minimally invasive surgery. Usually, a 26Fr resectoscope is used and the main articles on this topic report hysteroscopie resections with a 26Fr resectoscope. Miniaturization of resector led to decrease in the size of resectors with a potential benefit because of a less important cervical dilatation and then a smaller risk of adverse events and an increase in the number of surgery under local anaesthesia. Use of 18.5Fr resectors is more and more frequent but, to our knowledge, it has never been evaluated for benefit on cervical dilatation but also for rate of complete resection in one time, surgical length and rate of unbalanced input/output. Intuitively, a smaller diameter could led to a less traumatic cervical dilatation but it could also led to an higher risk of incomplete treatment in one time and a longer surgical duration and a more frequent unbalanced input/output. No study compare use of these two resectors (18.5 and 26Fr) all the more randomized. With 26Fr resector, the rate of complete resection in one time for less than 3cm myoma is around 90%. If this rate is higher with the 18.5Fr resector, the risk/benefit balance (including economic evaluation) won't be favorable to this use.

Interventions

DEVICE18.5 resector

hysteroscopic myomectomy with a 18.5 Fr resector after cervical dilatation until Hegar bougie number 7

DEVICE26Fr resector

hysteroscopic myomectomy with a 26Fr resector after cervical dilatation until Hegar bougie number 10

Sponsors

Bicetre Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Randomized trial

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Older than 18 years old * With a type 0,1 or 2 unique myoma requiring surgery

Exclusion criteria

* No medical care

Design outcomes

Primary

MeasureTime frameDescription
Comparison with chi square test of rate of complete surgery in one time3 yearsComplete resection of myoma in one time

Secondary

MeasureTime frameDescription
Duration of surgery3 yearsComparison of duration of surgery between 2 arms
Rate of unbalanced in and out balance3 yearsComparison of rate of unbalanced in and out balance between the 2 groups. A in/out balance higher than 500cc will be consider has unbalanced).
Cost effectiveness analyses3 yearsComparison of cost for complete resection of myoma between groups
Complications rate3 yearsComparison of complications rate (including cervical complications)
Use of a 26Fr resector3 yearsReport of the rate of use of a 26Fr resector in the 18.5Fr group

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026