title: [Mathew's clip, an alternative for removal of IUDs with no visible threads. Experience of Family Planning Service].
abstract: BACKGROUND
  The absence of IUD visible threads in the cervix is a complication of the intrauterine device. The IUD withdrawal in these cases was performed with Novak cannula or curettage instrumented under anesthesia and surgery. Its extraction with Mathew clip is an alternative.
  
  
  OBJECTIVE
  To demostrate the effectiveness of the Mathew's clip as an alternatively for removal of intrauterine devices not visible threads.
  
  
  METHODS
  A cross-sectional, retrospective, descriptive study was conducted in from February 2012 to July 2014 at the Family Planning Service of Gynecology and Obstetrics of the General Hospital of Mexico "Dr. Eduardo Liceaga ".
  
  
  RESULTS
  106 patients (54%) had no visible threads; in 84 patients (81.5 %) it was removed with Novak, cannula; in 19 patients (18.4%) in which it was not possible, the removal was done with a Mathew's clip.
  
  
  CONCLUSIONS
  Mathew' clip is an alternative in cases where it was not possible to remove the IUD with Novak cannula, 19 IUDs no visible threads were removed. CONCLUSIONS. Mathew clip for removal of intrauterine devices with no visible threads means less risk to the patient and a decrease in institutional costs.
authors.forename: Rafael G Buitrón
authors.initials: RG
authors.lastname: García-Figueroa
authors.forename: Guillermo
authors.initials: G
authors.lastname: Oropeza-Rechy
authors.forename: Roger
authors.initials: R
authors.lastname: Lara-Ricalde
authors.forename: Alejandra
authors.initials: A
authors.lastname: García-Hernández
authors.forename: Soledad Alhelí
authors.initials: SA
authors.lastname: Luis-Sánchez
mesh_terms: D000293:Adolescent; D000328:Adult; D003430:Cross-Sectional Studies; D020878:Device Removal / Q000295:instrumentation*; D004867:Equipment Design; D005193:Family Planning Services; D006801:Humans; D007434:Intrauterine Devices; D008875:Middle Aged; D012189:Retrospective Studies; D055815:Young Adult