Clinical trial · Interventional
Comparison of Microwave Ablation With Cryoablation for Breast Tumor
Comparison of Ultrasound Guided Percutaneous Microwave Ablation With Cryoablation for Breast Tumor
NCT03286413CI-TRIAL-00029574unknownN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The investigators will perform this study to prospectively compare the clinical outcome after percutaneous microwave ablation(MWA) and cryoablation of benign and malignant breast lesion under ultrasound (US) guidance.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Tumor | Breast Neoplasm | ALIAS | 0.90 |
| Cryoablation | — | UNRESOLVED | — |
| Microwave Ablation | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| microwave ablation | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- microwave ablation
- description
- Microwave ablation（MWA）refers to all electromagnetic methods of inducing tumor destruction by using devices with frequencies greater than or equal to 900MHz. The rotation of dipole molecules accounts for most of the heat generated during MWA. Water molecules as dipoles attempt to continuously reorient at the same rate in microwave's oscillating electric field. As a result of microwave transmission, the water molecules flip back and forth billions of times a second. The vigorous movement of water molecules produce friction and heat, thus inducing cellular death via coagulation necrosis. The microwave unit (KY-2000, Kangyou Medical, Nanjing, China) is capable of producing 100 Watts of power at 2450 MHz.The needle antenna has a diameter of 1.6 mm (16G) and a length of 10 cm. The active tip length is 3mm and 5mm.
- interventionNames
- Procedure: microwave ablation
- type
- ACTIVE_COMPARATOR
- label
- cryoablation
- description
- Clinically, cryosurgery is accomplished by placing a cryoprobe(up to 3.5 mm) through a stab incision into the tumor under ultrasound guidance.Liquid nitrogen is utilized under low operating pressure as cryogen which is controlled by the computer modulated cryogen regulator. The cryoprobe achieves rapid freezing by means of an active freeze zone at its distal tip.
Eligibility
Eligibility (as posted)
- Sex
- Female
Show eligibility criteria text
Inclusion Criteria: * (a) the breast tumor obtained the pathological diagnosis by using core-needle biopsy; (b) for the benign lesion, continually increasing during a half year followup,with the symptoms of local pain, discomfortable or compression considered probably relating to the mass of breast; the patient with evidently psychological pressure due to the occurrence of the BBL despite clearly benignancy on imaging; (c) for the malignant lesion, with the tumor size smaller than 2cm and without other metastasis. Exclusion Criteria: * (a) the patients who were pregnant or breast-feeding; (b) the patients with evidence of coagulopathy or acute or severe pulmonary insufficiency or heart dysfunction; (c) the patients during menstrual period; (d) the patients referring to other therapies including surgical excision and vacuum-assisted biopsy.
References
Publications (0)
Data not yet available
No reference posted for this study.