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Can SIS Using Air Bubbles Replace HSG for Fallopian Tubal Patency After Essure Placement

Can Contrast Infused Sonography Using Air Bubbles Replace Hysterosalpingogram as the Diagnostic Evaluation of Fallopian Tube Patency Following Hysteroscopic Sterilization Using Essure

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02628873
Acronym
HyCoSy
Enrollment
21
Registered
2015-12-11
Start date
2015-12-31
Completion date
2018-10-31
Last updated
2024-10-22

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

Conditions

Contraception

Keywords

HSG, HyCoSy, Contraception, Essure, Saline Infused sonography, SIS, Air bubbles

Brief summary

The study evaluates whether saline infused sonography (SIS) with directed air bubbles for hysterosalpingo-contrast sonography (HyCoSy) is as good as or better than X-ray hysterosalpingography (HSG) for determining whether fallopian tubes are open or closed in patients who are undergoing an Essure confirmation test.

Detailed description

The gold standard for evaluating whether fallopian tubes are open versus closed is the X-ray hysterosalpingography (HSG). HSG is a radiologic procedure that is performed to verify that placement of the Essure tubal ligation inserts have successfully blocked the fallopian tubes. However, this procedure involved exposure to radiation. The saline infused sonography (SIS) with directed air bubbles for hysterosalpingo-contrast sonography (HyCoSy) does not involve radiation and can be done in a physician's office. The HyCoSy air bubble device may be a lower cost, safer alternative procedure if it can be shown to provide similar results for tubal patency. This study will compare the HyCoSy procedure results with the HSG procedure results in women who require the HSG procedure after receiving Essure tubal ligation inserts for their Essure confirmation test. Women will be randomized to receive the HycoSy procedure first, followed by the HSG procedure or to the reverse order. Two independent readers will review the video results for both procedures to determine the degree of agreement on tubal patency.

Interventions

DEVICEHyCoSy

Saline infused sonogram in which air bubbles are delivered via the FemVue saline air device in order to evaluate the patency (openness) of the fallopian tubes

Sponsors

Bayer
CollaboratorINDUSTRY
Wright State University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Outcomes Assessor)

Masking description

Outcomes assessor does not know which procedure was received first or second.

Intervention model description

Cross over study in which participants receive one diagnostic test (SSI or HSG), then receive the other.

Eligibility

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

Inclusion criteria

* Documentation of normal Pap smear within 1 year prior to enrollment into study. * Written informed consent given * Need for evaluation of tubal status for post-Essure tubal occlusion * Negative urine pregnancy test

Exclusion criteria

* History of unresolved dysfunctional uterine bleeding (DUB). * History of a hysterectomy. * Current urogenital disease. * History of allergic response to IVP dye (exclusion for HSG). * Abnormal pap smear. * Positive urine pregnancy test.

Design outcomes

Primary

MeasureTime frameDescription
Fallopian Tube Patency - HyCoSy vs HSGAt time of procedureObserved flow of fluid/bubbles through fallopian tubes.

Secondary

MeasureTime frameDescription
Pain ScoresAt time of proceduresPatient reported pain scale score on visual pain scale (rated 0 for no pain to 10 for severe pain with corresponding faces)
Physician Evaluation of Uterine CavityAt time of HyCoSy procedureObserved image of uterus (normal or not normal). Assessor commented on uterine cavity to determine whether cavity was normal versus abnormal, e.g., bicornuate uterus or any notable uterine deformity. Data were coded as normal' or not normal.

Countries

United States

Participant flow

Recruitment details

Participants were recruited from existing practice and clinic patients who had the Essure device placed for contraception.

Participants by arm

ArmCount
Arm 1 (HyCoSy Followed by HSG)
HyCoSy procedure followed by HSG procedure HyCoSy: Saline infused sonogram in which air bubbles are delivered via the FemVue saline air device in order to evaluate the patency (openness) of the fallopian tubes
13
Arm 1 (HyCoSy Followed by HSG)
HyCoSy procedure followed by HSG procedure HyCoSy: Saline infused sonogram in which air bubbles are delivered via the FemVue saline air device in order to evaluate the patency (openness) of the fallopian tubes
26
Arm 2 (HSG Followed by HyCoSy)
HSG procedure followed by HyCoSy procedure HyCoSy: Saline infused sonogram in which air bubbles are delivered via the FemVue saline air device in order to evaluate the patency (openness) of the fallopian tubes
6
Arm 2 (HSG Followed by HyCoSy)
HSG procedure followed by HyCoSy procedure HyCoSy: Saline infused sonogram in which air bubbles are delivered via the FemVue saline air device in order to evaluate the patency (openness) of the fallopian tubes
12
Total57

Withdrawals & dropouts

PeriodReasonFG000FG001
Break (1 Hour)Withdrawal by Subject01
Second Test (1 Hour)Physician Decision10

Baseline characteristics

CharacteristicArm 2 (HSG Followed by HyCoSy)TotalArm 1 (HyCoSy Followed by HSG)
Age, Continuous36.5 years
STANDARD_DEVIATION 6.7
37.3 years
STANDARD_DEVIATION 6.5
37.9 years
STANDARD_DEVIATION 6.7
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
6 participants19 participants13 participants
Sex: Female, Male
Female
6 Participants19 Participants13 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 130 / 6
other
Total, other adverse events
0 / 130 / 6
serious
Total, serious adverse events
0 / 130 / 6

Outcome results

Primary

Fallopian Tube Patency - HyCoSy vs HSG

Observed flow of fluid/bubbles through fallopian tubes.

Time frame: At time of procedure

Population: Analysis was per fallopian tube.

ArmMeasureGroupValue (COUNT_OF_UNITS)
Arm 1 (HyCoSy Followed by HSG)Fallopian Tube Patency - HyCoSy vs HSGNumber of tubes closed per first procedure24 fallopian tubes observed to be closed
Arm 1 (HyCoSy Followed by HSG)Fallopian Tube Patency - HyCoSy vs HSGNumber of tubes closed per second procedure25 fallopian tubes observed to be closed
Arm 2 (HSG Followed by HyCoSy)Fallopian Tube Patency - HyCoSy vs HSGNumber of tubes closed per first procedure12 fallopian tubes observed to be closed
Arm 2 (HSG Followed by HyCoSy)Fallopian Tube Patency - HyCoSy vs HSGNumber of tubes closed per second procedure12 fallopian tubes observed to be closed
p-value: <0.01Kappa
Secondary

Pain Scores

Patient reported pain scale score on visual pain scale (rated 0 for no pain to 10 for severe pain with corresponding faces)

Time frame: At time of procedures

Population: Change in patient reported pain scores (pre-procedure minus post-procedure pain scores)

ArmMeasureGroupValue (MEAN)Dispersion
Arm 1 (HyCoSy Followed by HSG)Pain ScoresHSG post procedure pain score1.4 units on a scaleStandard Deviation 2.1
Arm 1 (HyCoSy Followed by HSG)Pain ScoresHyCoSy post procedure pain score2.4 units on a scaleStandard Deviation 3.1
Arm 2 (HSG Followed by HyCoSy)Pain ScoresHSG post procedure pain score1.8 units on a scaleStandard Deviation 4
Arm 2 (HSG Followed by HyCoSy)Pain ScoresHyCoSy post procedure pain score2.3 units on a scaleStandard Deviation 2.6
p-value: <0.395% CI: [-2.69, 1]t-test, 2 sided
Secondary

Physician Evaluation of Uterine Cavity

Observed image of uterus (normal or not normal). Assessor commented on uterine cavity to determine whether cavity was normal versus abnormal, e.g., bicornuate uterus or any notable uterine deformity. Data were coded as normal' or not normal.

Time frame: At time of HyCoSy procedure

Population: Number of uteri assessed as 'normal'

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm 1 (HyCoSy Followed by HSG)Physician Evaluation of Uterine Cavity13 Participants
Arm 2 (HSG Followed by HyCoSy)Physician Evaluation of Uterine Cavity6 Participants
p-value: <0.6795% CI: [-2.4, 1.56]t-test, 2 sided

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