Fertility and Sterility Interventions


KEY FACTS

Terminology

  • Hysterosalpingography : Contrast injection into endometrial cavity with fluoroscopy/imaging

  • Selective salpingography : Direct selective catheterization of fallopian tubal ostium

    • Contrast injection via catheter during imaging

  • Fallopian tube recanalization : Guidewire/catheter passage through occluded FT to reestablish patency

  • Fallopian tube occlusion : Placement of mechanical occluding device into fallopian tubes

Preprocedure

  • Selective salpingography indications

    • Differentiate spasm from true obstruction

    • Inadequate fallopian tube opacification by HSG

  • Fallopian tube recanalization indications

    • Tubal occlusion despite selective salpingography

  • Fallopian tube occlusion indications

    • Prophylaxis against unwanted pregnancy

Procedure

  • Selective salpingography

    • Advance 4-5-French catheter over 0.035" guidewire; wedge tip in uterine cornual region

    • Gently inject contrast medium; obtain images

  • Fallopian tube recanalization

    • Advance catheter/guidewire through obstruction

  • Fallopian tube occlusion

    • Place device in most challenging side 1st

    • Engage 5-French catheter working port in tubal ostium

    • Advance device until 3rd radiopaque marker at tubal ostium; deploy Essure coil

Post Procedure

  • Fallopian tube recanalization

    • Procedural success: 71-92%

  • Fallopian tube occlusion

    • Efficacy rate of Essure preventing pregnancy: 99.8%

Fallopian Tube Anatomy
Graphic shows a normal fallopian tube. From the ostium
, the interstitial segment
transitions to the isthmic segment at the uterotubal junction
. The remaining segments are termed ampullary
and infundibular
.

Normal Hysterosalpingogram
Hysterosalpingogram shows a normal endometrial cavity
, the tubal ostium
, uterotubal junction
, and the isthmic
, ampullary
, and infundibular
segments. Both fallopian tubes are widely patent.

TERMINOLOGY

Definitions

  • Hysterosalpingography (HSG) : Contrast injection via cervical canal into endometrial cavity with fluoroscopic monitoring/imaging

    • Normally shows filling of uterine cavity

    • Should also show bilateral fallopian tube (FT) filling

      • Tubal patency confirmed if contrast spills from tubes into abdominal cavity

    • Sensitivity and specificity in detecting pathology

      • Bilateral tubal pathology: 46% and 95%

      • Any fallopian tube pathology: 53% and 87%

  • Selective salpingography : Direct selective catheterization of fallopian tubal ostium

    • Contrast injection via catheter during imaging

      • Provides direct opacification of fallopian tube

  • Fallopian tubal anatomy

    • 4 tubal segments

      • Interstitial (intramural)

      • Isthmic

      • Ampullary

      • Infundibular

    • Uterotubal junction located at transition of intramural to isthmic segment of fallopian tube

      • Narrowest portion of fallopian tube

    • Average tubal diameter: 0.8-2.0 mm

      • Increases as fallopian tube courses toward ovaries

    • Average tubal length: 11 cm (range: 7-16 cm)

  • Fallopian tube recanalization (FTR) :Guidewire &/or catheter passage through occluded fallopian tube to reestablish tubal patency

    • Fallopian tube disease accounts for up to 35% of infertility cases; various causes

      • Infection (chlamydia)

      • Postsurgical

      • Salpingitis isthmica nodosa

        • Inflammation of isthmic segment; characterized by nodular thickening causing obstruction

      • Peritubal adhesions

    • Proximal tubal occlusion often caused by mucus plug/inflammatory debris; also caused by spasm

      • Involves interstitial segment/uterotubal junction

      • Responds fairly well to recanalization

    • Less favorable outcomes with more distal occlusions

      • More often due to scarring/fibrosis

  • Fallopian tube occlusion (FTO) : Placement of mechanical occluding device into fallopian tubes

    • Type of bilateral tubal sterilization

      • Hysteroscopic transcervical fallopian tube access

      • Placement of Essure device (Conceptus; Mountain View, CA) into fallopian tubes

        • Combined outer nitinol/inner stainless steel coil elicits tissue growth; occludes fallopian tubes

        • During first 3 months device not fully effective

        • Alternate birth control needed during this time

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