Cervical Stitch Pregnancy: Strengthening the Mothers for a Safer Delivery

Cervical Stitch Pregnancy: Strengthening the Mothers for a Safer Delivery

Pregnancy is a delicate phase in which on some cases, the cervix begins to shorten or open earlier than expected, even without pain or contractions. Recognising who is at risk, identifying early symptoms, and knowing when a cervical stitch is medically advised from SRM Global Hospitals in Chennai can significantly influence pregnancy outcomes. We offer specialised obstetric and high-risk pregnancy care with experienced Gynaecologists, Maternal–Fetal Medicine specialists, advanced ultrasound support, and structured surgical protocols.

The Function of the Cervix During Pregnancy

The cervix is the lower part of the uterus that connects to the vaginal canal. In a healthy pregnancy, it stays firm, long, and closed until late in the third trimester. As labour approaches, it gradually softens, shortens, and dilates. However, if the cervix opens too early, especially in the second trimester, the risk of preterm labour, premature birth, and late miscarriage increases. Especially, the cervical length less than 25 mm during the second trimester is strongly linked to preterm labour.

Cervical Insufficiency

Cervical insufficiency, sometimes called an incompetent cervix or cervical weakness, happens when the cervix shortens and opens without painful uterine contractions. This painless dilation can lead to pregnancy loss or spontaneous preterm birth.

Risk Factors

Certain conditions increase the risk of cervical weakness and preterm delivery:

  • Obstetric History: Women with a previous second-trimester miscarriage or a spontaneous preterm birth before 34 weeks are at the highest statistical risk. These events suggest the cervix does not have the structural integrity to support a full-term pregnancy.

  • Ultrasonographic Findings: A short cervix (usually defined as less than 25mm) detected on a Transvaginal Ultrasound (TVUS) between 16 and 24 weeks is a primary indicator for surgical intervention.

  • Surgical History: Procedures such as cone biopsy, LEEP (Loop Electrosurgical Excision Procedure), or repeated cervical dilatation can weaken cervical tissue or cause scar formation, increasing the risk of early cervical dilation.

  • Congenital Conditions: Some women are born with cervical weakness due to uterine anomalies (like a bicornuate uterus) or collagen disorders (like Ehlers-Danlos syndrome) that affect the “stretchiness” of the cervical tissue.

  • Physical Trauma: Significant cervical tearing during a previous rapid or difficult delivery can compromise the muscle’s ability to remain closed in subsequent pregnancies.

  • Multiple Pregnancy: Carrying twins or triplets puts significantly more mechanical pressure on the cervix than a singleton pregnancy, increasing the likelihood of early dilation.

  • Cervical Trauma in Earlier Pregnancies:Difficult deliveries, instrumental procedures, or cervical tears in previous pregnancies can damage cervical strength and function.

Warning Signs

Cervical insufficiency could develop with minimal symptoms. However, some women notice early signs such as:

  • Heaviness or Pressure: A feeling of “fullness” or a dragging sensation in the lower pelvic area, as if the baby is pushing down very low.

  • Dull Aches: Mild, constant abdominal or back pain that feels like menstrual cramps but does not come in regular “waves” like true contractions.

  • Spotting: Any light vaginal bleeding or brownish discharge should be reported to your gynaecologist immediately.

  • Change in Discharge: An increase in the amount of mucus or a change in its consistency (becoming watery or thick).

  • Infection Signs: If you notice Green or Yellowish Vaginal discharge, it could mean an infection such as Bacterial Vaginosis (BV) or Trichomoniasisis present, which can irritate the cervix.

  • The “Opening” Sensation:Some women describe a strange feeling that the “door” is opening or a sudden change in how they feel internally.

Cervical Cerclage

Cervical cerclage is a minor surgical procedure in which a strong stitch (cervical stitch) is placed around the cervix to keep it closed. The goal is to reduce the risk of miscarriage and preterm birth in women with cervical insufficiency or a short cervix. The procedure is usually performed between 12 and 24 weeks of pregnancy under the supervision of experienced obstetric specialists at SRM Global Hospitals. Research shows that cervical cerclage reduces preterm birth before 37 weeks in high-risk women and is also associated with reduced perinatal death compared with no treatment.

Types of Cervical Cerclage

Depending on the patient’s condition, medical history, and cervical length, Gynaecologists at SRM Global Hospitals choose the type of cerclage.

1. Transvaginal Cerclage

Transvaginal placement represents the standard approach for the majority of patients. It is performed through the vaginal opening, usually under regional or general anaesthesia.

  • The McDonald Technique: Surgeons place a “purse-string” suture high up on the cervix. It is the most common method because it is relatively simple to perform and easy to remove at approximately 37 weeks of gestation, allowing for a vaginal delivery.

  • The Shirodkar Technique: Surgeons dissect the vaginal mucosa to place the stitch higher up, closer to the internal opening of the cervix (the internal os). Because the stitch is buried under the tissue, it is more complex to place and requires a small incision for removal later.

2. Transabdominal Cerclage (TAC)

Abdominal cerclage is reserved for cases where the vaginal approach is technically impossible or has previously failed.

  • Surgical Route: The stitch is placed via an abdominal incision (laparotomy) or through minimally invasive laparoscopic surgery.

  • Indications: High-level scarring from previous surgeries or a cervix that is too short to be reached vaginally are the primary reasons for this choice.

  • Delivery Implications: These stitches are usually permanent. Consequently, a planned Cesarean section is mandatory, as the cervix cannot dilate naturally against the abdominal suture.

Timing: Planned vs Rescue

The timing of the procedure significantly impacts the success rate and the type of stitch recommended.

Planned (Prophylactic) Cerclage

A planned cerclage is performed early in the second trimester, between 12 and 14 weeks, after first-trimester chromosomal screening confirms a viable pregnancy and before any cervical changes occur.

  • Recommendation: Transvaginal (McDonald or Shirodkar) is the gold standard for a planned procedure.

  • Success rates are high (85% to 90%) because the membranes are intact and the cervix is firm, allowing for a clean and secure placement of the suture.

Rescue (Emergency) Cerclage

Rescue cerclage is performed as an emergency measure when the cervix has already begun to thin or dilate, sometimes with the amniotic sac protruding into the vaginal canal.

  • Recommendation: The McDonald Technique is almost always used in rescue situations. It allows the surgeon to work quickly to close the opening without the extensive tissue dissection required by the Shirodkar method.

  • Risks: Success depends on how much the cervix has already dilated. When dilation has progressed significantly, there is a higher risk of infection or premature rupture of membranes (PROM), as the water bag breaks too early before labour starts, causing leakage of the protective fluid around the baby. This can increase the chances of infection and preterm birth.

How Do Doctors Reduce the Risks in Rescue Cerclage?

Maternal–Fetal Medicine specialists carefully evaluate patients to ensure no active infection or contractions are present. The procedure is performed under strict sterile conditions, and antibiotics or medications to reduce uterine activity could be administered.

What Happens During the Procedure?

Cervical cerclage is a carefully planned and monitored procedure. It involves three stages as follows:

Stage 1: Preparation

Obstetricians and Maternal–Fetal Medicine specialists at SRM Global Hospitals confirm pregnancy stability and maternal health before surgical intervention.

Fetal Viability Confirmation

Doctors confirm a healthy pregnancy by performing a Transabdominal Ultrasound to visualise the fetal heartbeat, spontaneous movement, and overall development.

Cervical Length Measurement

A Transvaginal Ultrasound (TVUS) is used specifically to measure the cervical length in millimetres. This high-resolution internal scan allows the surgeon to see if the cervix is “funnelling” (opening from the inside) and helps determine the best height for the stitch.

Infection Screening

To ensure the highest standard of care, the clinical team follows a precise sequence for infection screening. A gynaecologist or trained nurse performs the High Vaginal Swab (HVS), while the lab technician processes the urine culture. Once the pathologist validates the results and issues a formal report, eliminating bacterial vaginosis or asymptomatic infections becomes mandatory, as placing a stitch in the presence of an active infection significantly increases the risk of preterm labour.

Physical Preparation

SRM Global Hospitals follow ERAS (Enhanced Recovery After Surgery) protocols. These guidelines recognise that prolonged fasting can actually cause dehydration, low blood sugar, and increased stress on the body.

  • Clear Liquids up to 2 Hours Before Surgery: Modern guidelines allow patients to drink “clear liquids” (water, pulp-free fruit juice, or black tea/coffee without milk) until 2 hours before the procedure.

  • Carbohydrate Loading: Some anaesthetists recommend a specific carbohydrate-rich drink 2 hours before surgery. This helps the body maintain energy levels and reduces post-operative nausea.

  • Light Meals: A light, low-fat meal could be permitted up to 6 hours before surgery, rather than the full 8-hour “midnight” fast.

Always follow the specific instructions provided by your anesthesiologist during the pre-operative check-up. They will decide which protocol is safest for you based on your digestion speed and the type of cerclage being performed.

Stage 2: The Procedure

The technique and anaesthesia chosen by the Obstetric Surgeon and Anaesthesiology team at SRM Global Hospitals depend on whether the stitch is placed vaginally or abdominally.

Anaesthesia

Anaesthesia Type

Primary Use Case

Spinal Block

The standard for Planned Transvaginal (McDonald or Shirodkar) cases; it numbs the pelvis while you remain awake.

General Anaesthesia

Used for Emergency/Rescue cases where the patient is distressed, or for Transabdominal (TAC) surgeries.

Epidural

Preferred for Transabdominal procedures to allow for extended post-operative pain management.

Surgical Techniques

  • McDonald Cerclage (Transvaginal): This is the most common “purse-string” method. The surgeon uses a needle to place a strong synthetic suture around the mid-body of the cervix. It is relatively quick and easy to remove at 37 weeks.

  • Shirodkar Cerclage (Transvaginal): This involves an incision in the vaginal wall to place the stitch higher up, closer to the internal opening of the uterus. It could be used if a previous McDonald stitch was unsuccessful.

  • Transabdominal Cerclage (TAC): This is a “permanent” band placed at the very top of the cervix via Laparoscopy (keyhole surgery) or an open abdominal incision. This is reserved for patients with a very short or scarred cervix where vaginal placement is not possible.

Stage 3: Recovery and Monitoring

The intensity of monitoring depends on whether the procedure was a planned preventative measure or an emergency “rescue” to save the pregnancy.

Monitoring by Procedure Type

Planned Cerclage (12-14 Weeks):

  • Transvaginal: Clinical observation lasts 2–4 hours. If there is no significant bleeding or cramping, most women return home the same day.

  • Transabdominal: Requires 1–2 nights of hospital stay to monitor the abdominal incision and ensure bowel function returns to normal.

Rescue / Emergency Cerclage:

  • In-Patient Stay: Patients usually remain in the hospital for 24–48 hours of strict bed rest.

  • Specialised Checks: Doctors monitor for “Uterine Irritability” (contractions) or PPROM (waters breaking), as the cervix was already changing before the stitch was placed.

Medication Management

Doctors prescribe progesterone supplementation to support cervical stability. Mild stool softeners are also advised to prevent straining during bowel movements, as excessive abdominal pressure can increase mechanical stress on the stitch. All medications should be taken strictly as prescribed.

Discharge and Home Care

Activity Gradation:

Strict bed rest is not routinely recommended. Modified activity is advised based on individual risk assessment. Light household activity is acceptable. Many women can resume desk-based work after 48 hours, provided prolonged standing or physical exertion is avoided. Standing for extended periods should be limited.

Physical Activity Restrictions:

Pelvic rest, including avoidance of intercourse and heavy lifting, is recommended for at least 7 days in planned cerclage cases. In rescue cerclage, restrictions continue for a longer duration depending on cervical stability.

Warning Signs for Immediate Medical Contact:

Immediate evaluation is required if any of the following occur:

  • Fever above 100.4°F

  • Regular, rhythmic uterine contractions

  • Sudden gush or continuous leakage of clear fluid

  • Persistent lower abdominal pain

  • Foul-smelling vaginal discharge

  • Vaginal bleeding

Follow-up:

A repeat Transvaginal Ultrasound (TVUS) is scheduled 1 to 2 weeks after the procedure at SRM Global Hospitals to confirm stitch position and assess cervical length. Further monitoring is based on clinical findings.

Book Your Appointment With Our Experts!

SRM Global Hospitals in Chennai delivers an advanced pregnancy evaluation supported by multidisciplinary expertise to get patients:

  • Early diagnosis through high-resolution screening and precise cervical monitoring.

  • Evidence-based treatment options personalised specifically to your unique obstetric history.

  • Advanced neonatal preparedness provides total peace of mind for high-risk cases.

  • Cohttps://srmglobalhospitals.com/book-an-appointment/ntinuous expert supervision from your first consultation through to a safe delivery.

FAQs on Cervical Stitch Pregnancy

1. Will a Cervical Cerclage Procedure Prevent Preterm Birth if I Have a Weakened Cervix?

Cervical cerclage is a medical procedure used for an incompetent or weakened cervix to reduce the risk of miscarriage or preterm birth. It is usually done between 12 and 24 weeks to keep the cervix closed until labour begins.

2. Is Vaginal Progesterone Better Than a Vaginal Cervical Stitch for Preventing Preterm Birth?

There is no strong evidence that cervical cerclage is more effective than vaginal progesterone in preventing preterm birth in women with a short cervical canal. Both treatments are recommended based on past pregnancies and other risk factors.

3. Is Cervical Cerclage an Emergency Procedure?

Cervical cerclage is usually a planned procedure done between 12 and 24 weeks of pregnancy. However, it could be performed as an emergency procedure if early cervical opening is detected.

4. Is Green Vaginal Discharge or Light Bleeding Normal After a Cervical Stitch?

Mild light bleeding or vaginal discharge can occur after the procedure, and it could be temporary. However, green vaginal discharge, fever (pyrexia), severe pain, or premature rupture symptoms should be reported to the doctor immediately.

5. Can I Have a Normal Pregnancy and Healthy Babies After Cervical Cerclage?

Many women continue a normal pregnancy and deliver healthy babies after 37 weeks. The stitch is removed before labour begins to avoid cervical injury. Delivery could be normal unless a planned caesarean section is required due to other risk factors.

6. Will I Feel Pain After Getting a Spinal Anaesthetic or Regional Anaesthesia?

During the cervical cerclage procedure, spinal or regional anaesthesia prevents pain. After the effect wears off, mild cramps could occur but usually settle in a short time. However, severe pain should be reported to the specialists.

7. Does Cervical Cerclage Affect Future Pregnancies?

In future pregnancies, women with past late miscarriage or preterm birth should be referred to a specialist early. The need for repeat cervical cerclage depends on previous outcomes and other risk factors.