Work

Insertion of Intrauterine Devices ( IUDs ) in Sanctuary Chimpanzees (Pan troglodytes) Using Ultrasonography and Radiology to Confirm Placement

Year: 2025

Type: article

Abstract: BACKGROUND: Reproduction in captive chimpanzees (Pan troglodytes) can be controlled by the insertion of intrauterine devices (IUDs) for females who do not reliably take oral contraceptives. Previous literature describes the use of improvised devices made from syringe cases as a speculum to accommodate the depth of the vaginal vault. METHODS: Copper IUDs (model T380A) were inserted in two sanctuary-housed chimpanzees. A disposable human small-sized vaginal speculum (Welch Allyn KleenSpec) with an illumination system provided a good view of the cervix. A 3/4 mm dilator and a uterine sound aided insertion. RESULTS: After multiple rounds of dilation, the uterine sound was still necessary to manipulate the IUD to the fundus of the uterus. Correct placement was confirmed by ultrasonography and radiology. CONCLUSION: Inserting IUDs in chimpanzees can prove challenging. Having appropriate equipment available, such as varied sizes of speculums and dilators, is crucial. Gynecologists and ultrasonographers with experience inserting IUDs in humans can help ensure correct placement.

Source: Journal of Medical Primatology

DOI: 10.1111/jmp.70036

Authors: Jenny E. Jaffe, Nancy Sokkary, Jill Nielsen, James R. McClearen

Institutions: Freie Universität Berlin, Emory University, Children's Healthcare of Atlanta

Language: English

Topic: Reproductive Health and Contraception

Subfield: Public Health, Environmental and Occupational Health

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $3,350