Laser ablation is a precise, minimally invasive treatment technique that delivers laser energy directly to target tissue through a thin optical fiber. Tissue ablation is achieved through the photothermal effect or selective photothermal action. Key advantages include a localized thermal field, well-controlled treatment margins, and minimal damage to surrounding tissues. The technique is widely used in oncology, functional neurosurgery, and other clinical fields.

I.Indications

1.Thyroid nodules

2.Liver cancer

3.Liver metastases

4.Varicose veins

5.Benign prostatic hyperplasia

6.Lung cancer

II.Key Advantages

1. Treatment under high-resolution imaging guidance:

Using CT, ultrasound, or other high-resolution imaging modalities, the tumor is precisely localized and a thin laser fiber is guided into the tumor tissue, minimizing the impact on surrounding healthy tissue.

2. Photothermal ablation of tumor tissue:

Laser energy generates localized heat that disrupts tumor cells and induces coagulative necrosis within the targeted tumor tissue.

3.Minimally invasive approach:

The procedure requires only a needle-sized puncture site. Many patients can recover relatively quickly after treatment, although the length of hospital stay varies depending on the individual patient and clinical circumstances.

4.Treatment can be repeated when appropriate:

If the tumor recurs or new lesions develop, the procedure may be repeated when considered appropriate following specialist evaluation.

5.Advantages compared with conventional surgery:

Compared with conventional surgery, this approach is generally associated with a lower risk of intraoperative bleeding and infection.

III. Why Choose Jinshazhou Hospital of Guangzhou University of Chinese Medicine?

1. Multidisciplinary team (MDT) approach:

Specialists from oncology, medical imaging, interventional medicine, and other disciplines work together to evaluate each patient, discuss treatment strategies, and develop an individualized treatment plan based on the patient's specific condition.

2. Advanced treatment technology and equipment:

The hospital is equipped with a laser ablation system, high-resolution image-guidance equipment, and other supporting technologies for minimally invasive diagnosis and treatment.

3. Clinical experience in minimally invasive cancer treatment:

Our specialist teams have extensive clinical experience in minimally invasive cancer diagnosis and treatment and provide care tailored to each patient's clinical needs.

4. Integrated Western and traditional Chinese medicine:

Drawing on the academic resources of Guangzhou University of Chinese Medicine, minimally invasive treatment can be combined, when appropriate, with traditional Chinese medicine based on syndrome differentiation, providing an integrated approach to patient care.

5. Comprehensive care and follow-up:

Patients receive coordinated medical support throughout diagnosis, treatment, postoperative recovery, and regular follow-up.

IV. Technical Definition

Laser ablation is a precise, minimally invasive treatment technique that delivers laser energy directly to target tissue through a thin optical fiber. Tissue ablation is achieved through the photothermal effect or selective photothermal action. Key advantages include a localized thermal field, well-controlled ablation margins, and minimal damage to surrounding tissues. The technique is widely used in oncology, functional neurosurgery, and other clinical fields.

Laser energy is delivered to the target tissue through an optical fiber, where it is absorbed and converted into heat, causing protein denaturation and coagulative necrosis. Modern laser ablation systems use real-time MRI or CT-based temperature monitoring, allowing the energy output to be dynamically adjusted and the ablation zone to be precisely controlled within the target boundaries, with a reported margin of error within 1–2 mm.

V. Mechanism of Action

Laser ablation works primarily through thermal effects:

Laser Energy Delivery

The laser fiber delivers a high-energy beam to the target tissue.

Energy Absorption by Tumor Tissue

The tumor tissue absorbs the laser energy, causing its temperature to rise rapidly.

Thermal Destruction of Tumor Cells

At temperatures of approximately 60°C or higher, tumor cell proteins denature and cellular structures are disrupted.

Formation of Coagulative Necrosis

The treated tumor tissue undergoes irreversible coagulative necrosis and is gradually resorbed by the body or replaced by fibrotic tissue.

VI. Treatment Procedure

1. Pre-Treatment Assessment

CT, MRI, ultrasound, and other imaging studies are used to assess the size, location, and number of tumors and to develop an individualized treatment plan.

2. Anesthesia and Tumor Localization

The procedure is typically performed under local anesthesia or mild sedation. The tumor is precisely localized under imaging guidance.

3. Laser Fiber Placement

A thin laser fiber is inserted percutaneously and positioned within the tumor under imaging guidance.

4. Laser Ablation

Laser energy is delivered through the fiber to thermally ablate the targeted tumor tissue.

5. Post-Treatment Monitoring

After the procedure, imaging is performed to assess the treated area, followed by a short period of clinical observation.

VII. Safety and Precautions

1. Safety>

Laser ablation is an established minimally invasive technique performed under strict imaging guidance and has a generally favorable safety profile.

2. Possible Treatment-Related Reactions

Possible reactions include mild pain, transient low-grade fever, localized swelling, and discomfort.

3. Post-Treatment Precautions

Keep the puncture site clean and properly cared for, and avoid strenuous activity for a short period after treatment. Seek medical attention promptly if you experience significant discomfort or other concerning symptoms, and attend regular follow-up examinations as advised by your physician.

VIII. Frequently Asked Questions

Patients and their families often have questions about minimally invasive cancer treatment: Is it suitable for me? How long will recovery take? What treatment-related reactions might occur? Below are answers to some of the most common questions for general informational purposes. Individual treatment decisions should be based on an in-person evaluation by a physician.

1. Can laser ablation completely cure cancer?

For some small, early-stage tumors, laser ablation can provide effective local tumor control. However, treatment outcomes depend on factors such as tumor type and size, as well as the patient's overall health. Each case is different, and whether laser ablation is appropriate should be determined through a comprehensive evaluation by a specialist.

2. How long will I need to stay in the hospital after laser ablation?

The length of hospital stay varies from patient to patient. Some patients may be discharged after 1–3 days of observation once their condition is stable. The actual length of stay depends on the characteristics of the lesion and the patient's response after treatment and should be determined by the treating physician.

3. Is laser ablation painful?

Laser ablation is generally performed under local anesthesia or sedation. Most patients experience only mild discomfort during the procedure.

4. Can laser ablation be combined with chemotherapy, targeted therapy, or immunotherapy?

Yes. Depending on the patient's condition, laser ablation may be combined with chemotherapy, targeted therapy, immunotherapy, or other treatments as part of a comprehensive treatment strategy to improve overall tumor control. Whether combination treatment is appropriate should be determined by a physician based on the characteristics of the tumor and the patient's ability to tolerate treatment.

5. Can laser ablation be repeated if the tumor recurs?

If the patient's overall condition and the characteristics of the lesion meet the appropriate clinical criteria, repeat laser ablation or another minimally invasive treatment may be considered. Whether further treatment is appropriate should be determined through a comprehensive evaluation of the lesion and the patient's ability to tolerate additional treatment.