Successful removal of an embedded intrauterine contraceptive device (IUD) under ultrasonic guidance and local anesthesia is reported in a case in which conventional methods of removal had failed.
CASE REPORTA 32-year-old gravida 2 para 2 woman was referred to our institution for hysteroscopic removal of a Lippes' loop that had been in place for 9 years. Previous attempts to extract the IUD had failed. During the first attempt 3 weeks earlier, the IUD string had broken while being pulled during an office pelvic examination. An abdominal film taken 1 day later indicated that the Lippes' loop was probably in an appropriate location for intrauterine manipulation. During a subsequent dilatation and curettage under general anesthesia, the IUD was felt but still could not be removed. The patient was referred for hysteroscopic removal of the IUD.Physical examination at our institution disclosed that the abdomen was soft, without masses, and with normal bowel sounds. External and internal pelvic examinations were normal, revealing a multiparous cervix. On real-time ultrasound examination (Fig. l), the Lippes' loop was located primarily intracavitary but partially embedded in the posterior superior aspect of the uterine fundus, without penetration through the myometrium. After completion of the preliminary scan, 10 ml of 1% lidocaine was administered as a paracervical block in an arc from 2-10 o'clock around the cervix. Under continuous-
68sector real-time ultrasonic visualization, the portion of the IUD embedded in the uterine wall was dislodged with a Novak curette by hooking the Lippes' loop on the teeth of the curette at the point of penetration of the IUD into the uterine myometrium. This was guided by ultrasound, with the vaginal operator viewing the video screen and requesting appropriate changes in orientation of the ultrasound transducer in consultation with the ultrasonographer to obtain maximum visualization. (Unfortunately, the portable equipment used in this procedure was not connected to a video recorder, so that no recording of the actual removal is available.) Once the loop was freed from the embedded region, it was grasped with a long Kelly clamp at the level of the lower uterine segment and removed. Approximately 10 ml of blood was lost during the procedure. After a brief period of observation, the patient was discharged on a 48-h course of tetracycline and had an unremarkable recovery.
DISCUSSIONSonography without general anesthesia has been used to monitor continuously the extraction of IUDs during pregnancy to prevent injury to the gestational sac.' Sonographic monitoring has also been performed with general anesthesia for removal of an embedded Fincoid IUD.2 In the latter case, a broken IUD string had prevented simple removal by pulling. The use of arborization forceps after paracervical local anesthesia and cervical dilatation also was not successful; nor was an attempt with the addition of general anesthesia, a hook specially designed for IUD removal, and Crossen-Gilliam forceps. However, real-time...