Hystero contrast sonography

Hystero Contrast Sonography (HCS), also known as Saline Infusion Sonography (SIS) or Sonohysterography, is a specialized ultrasound technique used in gynecology to evaluate the uterine cavity. This non-invasive diagnostic procedure involves the introduction of a saline solution into the uterus, which enhances the ultrasound images, allowing for a more detailed examination of the uterine walls and the endometrial cavity. HCS is particularly useful in the assessment of various uterine abnormalities, including polyps, fibroids, and adhesions (Asherman's syndrome), as well as in the evaluation of infertility and abnormal uterine bleeding.

Indications

Hystero Contrast Sonography is indicated for patients with:

• Abnormal uterine bleeding
• Suspected intrauterine lesions such as polyps or fibroids
• Unexplained infertility
• Recurrent miscarriages
• Preoperative assessment before hysteroscopy or endometrial ablation
• Postoperative evaluation of the uterine cavity

Procedure

The HCS procedure is typically performed in the outpatient setting, often in a gynecologist's office. It involves the following steps:

1. The patient is positioned similarly to a Pap smear test.
2. A speculum is inserted into the vagina to visualize the cervix.
3. A thin catheter is then gently inserted through the cervical canal into the uterine cavity.
4. Saline solution is slowly infused through the catheter into the uterus, expanding the uterine cavity and providing a clear view of the interior walls and any potential abnormalities.
5. Real-time ultrasound images are taken as the saline is infused, allowing the physician to assess the structure and condition of the uterine cavity.

Benefits

• Non-invasive and relatively quick procedure
• Provides detailed images of the uterine cavity
• Can be performed in an outpatient setting
• Minimal discomfort and side effects
• Useful in guiding further treatment or surgical planning

Risks and Complications

While Hystero Contrast Sonography is generally safe, there are minimal risks involved:

• Mild discomfort or cramping during or after the procedure
• Spotting or light bleeding post-procedure
• Rarely, infection due to the introduction of the catheter

Conclusion

Hystero Contrast Sonography is a valuable diagnostic tool in gynecology, offering detailed insights into the uterine cavity's health and structure. Its non-invasive nature, combined with the detailed imaging it provides, makes it an essential procedure for evaluating various uterine conditions, aiding in the diagnosis and management of patients with abnormal uterine symptoms or infertility issues.

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