IUCDs

Introduction to Intrauterine Contraceptive Devices

The Intrauterine Contraceptive Device (IUCD) is a small, T-shaped plastic frame containing either copper or a hormone, inserted into the uterine cavity by a trained healthcare provider. It stands as one of the most effective, reversible, and long-acting methods of birth control available in primary health care centers across Nigeria. Once in place, a client can rely on it for years without daily maintenance, making it highly attractive for spacing births or stopping childbearing entirely. Midwives encounter many myths regarding this method, such as the fear that it travels to the heart or causes permanent infertility, making clear client education an essential part of every consultation.

Types of IUCDs Available in Primary Health Care

In Nigerian clinical practice, two main categories of IUCDs dominate service delivery:

• Copper-bearing IUCDs: Devices like the Copper T 380A wrap copper wire or sleeves around a polyethylene frame. Copper ions create a spermicidal environment inside the uterus. The Copper T 380A is approved for up to twelve years of continuous use.
• Hormonal IUCDs: Devices like the Levonorgestrel-releasing intrauterine system (Mirena) slowly release small amounts of progestin directly into the uterine lining, making the mucus thick and the lining thin. They also significantly reduce menstrual blood loss and painful cramps.

Mechanism of Action

An IUCD works primarily before fertilization occurs, debunking the misconception that it acts as an abortifacient.

1. Spermicidal effect: Copper ions and the local inflammatory response inside the uterine cavity damage sperm, preventing them from swimming up to meet an egg.
2. Tubal motility interference: The biochemical changes in the uterine fluid also affect sperm capacitation and transport through the fallopian tubes.
3. Endometrial alteration: The presence of a foreign body alters the lining of the uterus, making it completely unsuitable for the implantation of a fertilized ovum.

Patient Selection and Eligibility Screening

Midwives use the World Health Organization Medical Eligibility Criteria (WHO MEC) to determine if a client can safely use an IUCD. Most women, including nulliparous clients and adolescents, are eligible for Category 1 or Category 2 use.

• Category 1: No restriction for use.
• Category 2: Advantages generally outweigh theoretical or proven risks.
• Category 3: Risks generally outweigh advantages (e.g., current pelvic inflammatory disease, unexplained vaginal bleeding).
• Category 4: Unacceptable health risk (e.g., active cervical or uterine cancer, current pregnancy, or distorted uterine cavity).

Pre-Insertion Clinical Assessment and Counseling

Before touching the client with instruments, the midwife must conduct a thorough pelvic examination. This involves performing a bimanual exam to check the size, shape, and position of the uterus, ruling out pregnancy, and checking for signs of reproductive tract infections or cervical tenderness. Counseling must cover expected changes in bleeding patterns—especially heavier or crampier periods with copper devices—and warning signs that require immediate return, such as foul-smelling discharge, severe lower abdominal pain, or fever.

Step-by-Step IUCD Insertion Technique

Aseptic technique is non-negotiable during IUCD insertion to prevent introducing bacteria into the uterine cavity.

1. Preparation: Explain each step, ask the client to empty her bladder, and place her in the lithotomy position.
2. Speculum examination: Insert a sterile speculum to visualize the cervix and clean it with an antiseptic solution.
3. Uterine sounding: Gently grasp the anterior lip of the cervix with a tenaculum and insert a uterine sound to measure the depth of the uterine cavity.
4. Loading and insertion: Load the IUCD into its sterile insertion tube without touching non-sterile surfaces, pass it into the cavity to the measured depth, release the arms, and withdraw the tube.
5. Trimming: Trim the remaining plastic strings so they protrude about two to three centimeters from the external os.

Immediate Post-Insertion Care and Client Advice

After the procedure, the client should rest on the examination couch for ten to fifteen minutes because mild dizziness or cramping can occur due to cervical manipulation. The midwife provides simple analgesics like paracetamol or ibuprofen if cramping is uncomfortable. Before discharge, the client receives clear instructions on how to feel for her strings, reassurance that sexual intercourse can resume whenever she feels comfortable, and an appointment card for her first routine follow-up visit.

Managing Common Side Effects and Complications

Midwives must address client concerns promptly to prevent premature discontinuation. The most frequent issues include spotting, heavier bleeding, and lower abdominal cramping, which usually subside after the first three to six months.

• Expulsion: The device may slip out partially or completely, often unnoticed by the client. Midwives should check for missing strings or pelvic pain.
• Perforation: A rare event where the device pushes through the uterine wall, usually during insertion. Severe, unyielding pain and missing strings call for an immediate ultrasound scan.
• Infection: Pelvic infections can occur if bacteria are introduced during insertion; these require prompt antibiotic treatment and sometimes device removal.

Follow-Up Schedule and Removal Procedures

Routine follow-up ensures the client is coping well. A standard schedule includes a check visit after her first menses or four to six weeks post-insertion, followed by annual reviews. Removal is a straightforward procedure performed by gently pulling the strings with sterile forceps. If strings are missing, a careful clinical evaluation using an endocervical brush or ultrasound is necessary. Clients can have an IUCD removed at any time if they wish to become pregnant or switch methods.