Intrauterine contraceptive device

Changed by Daniel J Bell, 6 Jul 2017

Updates to Synonym Attributes

Title was changed:
Intra Uterine Deviceuterine device (IUD)

Updates to Article Attributes

Body was changed:

Intra-uterine contraceptive devices (IUCD) are one of the most frequently used methods of contraception throughout the world. It prevents pregnancy by:

  • thinnning the endometrial lining
  • preventing sperm motility
  • preventing  implantationimplantation

There are two main types of IUCDs:

Radiographic features

Conventional radiography

Radiodense intrauterine structures most often 'T-shaped' or at times seen as a serpiginous structure.

Ultrasound
  • ultrasound is the preferred modality in assessing an IUCD.
  • properly placed IUCD may be visualised as a straight hyperechoic structure in the endometrial canal of the uterus and the arms of the IUD extending laterally at the uterine fundus.
  • often causes posterior acoustic shadowing.
  • the distance from the top of the uterine cavity to the IUDIUCD should be < 3 mm 
  • distance > 4 mm is more often associated with symptoms such as bleeding and pain, as well as with a higher risk of expulsion or displacement
  • in cases where it becomes embedded, a part of it may be visualizedvisualised within the myometrium.
  • if it is located too inferiorly, or if it begins to extend through the cervical os, its effectiveness is decreased and may also cause pelvic pain and/or bleeding. It should be repositioned.

3D ultrasound may be useful to help visualizevisualise the IUCD location (especially with serpiginous IUCDs) 4.

CT

Hyperattenuating structures with metallic density.

Treatment and prognosis

Complications

History and etymology

The IUCD was first developed by the German physician, Dr. R Richter of Waldenburg.

  • -<li>preventing  implantation</li>
  • +<li>preventing implantation</li>
  • -<li><a href="/articles/hormonal-mirena-iucd">hormonal (Mirena)</a></li>
  • +<li>hormonal (e.g. Mirena)</li>
  • -<li>the distance from the top of the uterine cavity to the IUD should be &lt; 3 mm </li>
  • +<li>the distance from the top of the uterine cavity to the IUCD should be &lt; 3 mm </li>
  • -<li>in cases where it becomes embedded, a part of it may be visualized within the myometrium.</li>
  • +<li>in cases where it becomes embedded, a part of it may be visualised within the myometrium.</li>
  • -</ul><p><a href="/articles/3d-ultrasound">3D ultrasound</a> may be useful to help visualize the IUCD location (especially with serpiginous IUCDs) <sup>4</sup>.</p><h5>CT</h5><p>Hyperattenuating structures with metallic density.</p><h4>Treatment and prognosis</h4><h5>Complications</h5><ul>
  • +</ul><p><a href="/articles/3d-ultrasound">3D ultrasound</a> may be useful to help visualise the IUCD location (especially with serpiginous IUCDs) <sup>4</sup>.</p><h5>CT</h5><p>Hyperattenuating structures with metallic density.</p><h4>Treatment and prognosis</h4><h5>Complications</h5><ul>

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