Name of the Procedure:

Brachytherapy Isodose Plan; Simple Common names: Simple Brachytherapy Isodose Plan Technical terms: Remote Afterloading Brachytherapy, Basic Dosimetry Calculation

Summary

Brachytherapy isodose plan (simple) is a type of radiation therapy where radioactive sources are placed inside or near a tumor. This specific procedure involves calculations made from 1 to 4 sources or a single channel of remote afterloading brachytherapy, which includes basic dosimetry calculations to determine the dose distribution.

Purpose

This procedure aims to treat certain types of cancers by delivering precise radiation doses directly to the tumor, minimizing exposure to surrounding healthy tissue. The goal is to effectively kill cancer cells, reduce tumor size, and prevent cancer recurrence.

Indications

• Prostate cancer
• Cervical cancer
• Breast cancer
• Head and neck cancers
• Other localized tumors

Patient criteria:

• Tumors that are well-defined and localized
• Patients who may not be good candidates for external beam radiation or surgery

Preparation

• Fasting may be required if sedation or anesthesia is used.
• Diagnostic imaging (CT, MRI) to locate the tumor.
• Blood tests and other assessments to evaluate overall health.
• Detailed discussion with the oncologist and medical team.

Procedure Description

1. Patient Preparation: The patient is positioned to ensure accurate placement of the radioactive sources.
2. Anesthesia/Sedation: Local or general anesthesia may be administered based on the tumor location and patient comfort.
3. Placement: Radioactive sources (1 to 4) are placed directly in or near the tumor using applicators, catheters, or needles.
4. Dosimetry Calculation: Basic calculations are performed to determine the optimal radiation dose distribution.
5. Delivery: Radiation is delivered over a specified period, after which the radioactive sources are either removed or remain temporarily/permanently.

Tools/Technology Used:

• Applicators/catheters
• Remote afterloading machines
• Imaging equipment (CT, MRI)

Duration

The procedure typically takes 1 to 2 hours, depending on the complexity.

Setting

Performed in a hospital or specialized radiation oncology center.

Personnel

• Radiation oncologist
• Medical physicist
• Radiation therapist
• Nurses
• Anesthesiologist (if sedation is required)

Risks and Complications

• Localized pain or discomfort
• Infection at the insertion site
• Bleeding
• Radiation side effects (e.g., skin irritation, fatigue)
• Rare: Organ damage, mucosal ulceration, fistula formation

Benefits

• Targeted treatment with minimal damage to surrounding tissues
• Shorter treatment times compared to external beam radiation therapy
• Effective at controlling localized tumors

Benefits typically realized within weeks to months as the tumor responds to the radiation.

Recovery

• Most patients can go home the same day if no complications arise.
• Follow-up visits to monitor healing and treatment response.
• Avoid strenuous activities for a few days.
• Manage mild discomfort with over-the-counter pain relievers.

Alternatives

• External beam radiation therapy
• Surgical removal of the tumor
• Chemotherapy
• Immunotherapy

Pros and Cons:

• Brachytherapy is more localized and has fewer side effects compared to external beam radiation. However, it is not suitable for all types of tumors.
• Surgery may offer a complete removal but comes with longer recovery times and higher risks.

Patient Experience

• During the procedure, the patient may feel pressure or minor discomfort at the site of insertion.
• Post-procedure, experiencing tenderness and slight discomfort is normal. Pain can be managed with prescribed medications or over-the-counter pain relievers.
• Emotional support and clear communication from the healthcare team can help alleviate any anxiety or concerns.