The purpose of this clinical study is to quantify the difference in thermal injury depth at the surgical margin in breast lumpectomy specimens excised with the PlasmaBlade; to subjectively assess histopathologic sample quality metrics; to examine the role that electrosurgical artifact may play in revision lumpectomy procedures; and to compare these endpoints to the standard of care (SOC) technology.
Lumpectomy is a surgical procedure performed to remove a localized mass of breast tissue that is suspicious for malignancy. The purpose of lumpectomy is to minimize the amount of tissue removed from the breast to retain normal breast architecture while simultaneously removing all of the suspected cancerous tissue. Typically, a scalpel is used for the skin incision and a traditional electrosurgical device is used to cut away any cancerous tissue. The PEAK PlasmaBlade™ uses pulsed radiofrequency (RF) energy and a highly-insulated handpiece design to enable precision cutting and coagulation at the point of application. The PlasmaBlade has received FDA clearance for use in plastic, general, and ear, nose, and throat (ENT) surgery, and has demonstrated a significantly reduced thermal injury profile in incised tissue compared to traditional electrosurgical devices. It is hypothesized that this benefit may improve the pathological analysis of excised breast lumps. This single site study was granted Institutional Review Board (IRB) approval and conducted between June 2009 and January 2011. Potential subjects were screened against the inclusion and exclusion criteria of the study protocol and were then required to provide informed consent prior to enrollment. Following enrollment, subjects were prospectively randomized to the SOC or PEAK PlasmaBlade study groups and scheduled for lumpectomy.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
50
The entirety of the lumpectomy will be performed with the PEAK PlasmaBlade including the skin incision
The skin incision will be performed using a standard scalpel; the subcutaneous dissection will be performed with traditional electrosurgery using the Cut and Coagulation modes.
El Camino Surgery Center
Mountain View, California, United States
Palo Alto Medical Foundation
Mountain View, California, United States
Histological Metrics: Amount of Overlying Adherent Char on Slide; Damage to Tumor Epithelium; Effect of Electrosurgical Damage on Diagnostic Quality of Lumpectomy Specimen
Overall histological quality score will be a composite of the histological metrics
Time frame: Intraoperative
Operative Metrics: Operative Time, Estimated Blood Loss, Skin Scarring
Time frame: Intraoperatively and 1-2 weeks postoperatively
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