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The objective of this clinical study is to evaluate the operative performance of the PEAK PlasmaBlade 4.0 during bilateral breast reduction; to monitor and record post-operative pain, adverse events and skin scarring following surgery; and compare these outcomes to the current standard of care (SOC).
Bilateral breast reduction is a surgical procedure performed to remove excess breast tissue from both female breasts for therapeutic or cosmetic indications. The purpose of the breast reduction is to decrease the weight of the breasts and restructure the breast tissue for a more favorable appearance. Typically, a scalpel is used for the skin incision and a traditional electrosurgical device is used to cut away any excess 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 post-operative outcome of patients undergoing bilateral breast reduction.
A total of forty-five (45) subjects were enrolled into the study. Forty-three (43) underwent bilateral breast reduction, and two (2) subjects were withdrawn prior to surgery. Enrollment and surgeries took place between 18 September 2009 and 12 August 2011. Potential subjects were screened against the inclusion and exclusion criteria of the study protocol and were required to provide informed consent prior to enrollment. Following enrollment, subject operative sites were prospectively randomized to the SOC or PlasmaBlade (PB or PEAK) study groups and scheduled for bilateral breast reduction. Subjects were unaware of which device was used on which breast. Subjects were required to attend two follow-up visits after surgery, approximately one and six weeks following surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| PlasmaBlade arm | Experimental | The PEAK PlasmaBlade will be used for the entirety of the breast reduction, including the skin incision. |
|
| Standard of Care | Active Comparator | Scalpel will be used for the skin incision and traditional electrosurgery for the subcutaneous dissection. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| PEAK PlasmaBlade | Device | The PEAK PlasmaBlade will be used for the entirety of the breast reduction, including the skin incision. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Postoperative Pain | The difference in pain was measured by visual analog scale for 24 hours post-operatively and for 10 post-operative days twice daily between the SOC and PlasmaBlade operative sites. Wong-Baker FACES Visual Analog Scale, 0 (no hurt) to 10 (hurts worst). The results represent the mean of each subject's mean pain scores over 10 days. | 0 to 10 days postoperative |
| Measure | Description | Time Frame |
|---|---|---|
| Estimated Blood Loss | Intraoperative | |
| Operative Time | Intraoperative | |
| Amount of Tissue Removed |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Abhay Gupta, MD | Gupta Plastic Surgery | Principal Investigator |
| Howard Rosenberg, MD | Accent on Aesthetics Plastic Surgery | Principal Investigator |
| Susan Downey, MD | Susan Downey, MD, FACS | Principal Investigator |
| Larry Pollack, MD | Del Mar Plastic Surgery | Principal Investigator |
| Hooman Soltanian, MD | University Hospital Cleveland | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Providence St. Joseph's | Burbank | California | 91505 | United States | ||
| Verdugo Hills Hospital |
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Subjects' individual breasts were prospectively randomized to the standard of care or PEAK PlasmaBlade.
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| ID | Title | Description |
|---|---|---|
| FG000 | Total Study Population | Subjects' individual breasts were prospectively randomized to the standard of care or PEAK PlasmaBlade. |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Total Study Population | Subjects' individual breasts were prospectively randomized to the standard of care or PEAK PlasmaBlade. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Postoperative Pain | The difference in pain was measured by visual analog scale for 24 hours post-operatively and for 10 post-operative days twice daily between the SOC and PlasmaBlade operative sites. Wong-Baker FACES Visual Analog Scale, 0 (no hurt) to 10 (hurts worst). The results represent the mean of each subject's mean pain scores over 10 days. | Two subjects were removed from the analysis of secondary variables owing to protocol deviations. | Posted | Mean | Standard Deviation | units on a scale | 0 to 10 days postoperative | breasts | Participants |
|
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | PEAK PlasmaBlade | The PEAK PlasmaBlade will be used for the entirety of the breast reduction, including the skin incision. |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Hematoma | Surgical and medical procedures | Second surgery was required to evacuate the hematoma. |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Wound dehiscence | Surgical and medical procedures |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Robert Swain, PhD | Medtronic Surgical Technologies | +1 (603) 294-5428 | robert.e.swain@medtronic.com |
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| ID | Term |
|---|---|
| C536821 | Gigantomastia |
| D000084462 | Hyperthermia |
| ID | Term |
|---|---|
| D001832 | Body Temperature Changes |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D018882 | Heat Stress Disorders |
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| ID | Term |
|---|---|
| D053685 | Laser Therapy |
| D004598 | Electrosurgery |
| ID | Term |
|---|---|
| D013812 | Therapeutics |
| D055011 | Ablation Techniques |
| D013514 | Surgical Procedures, Operative |
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| Traditional Electrosurgery with scalpel | Procedure | Scalpel will be used for the skin incision and traditional electrosurgery for the subcutaneous dissection. |
|
|
| Intraoperative |
| Dissection Performance | Amount of tissue (g) removed over time (min) | Intraoperative |
| Glendale |
| California |
| 91218 |
| United States |
| El Camino Hospital | Mountain View | California | 94040 | United States |
| Tri-City Medical Center | Oceanside | California | 92056 | United States |
| Sharp Outpatient Pavilion | San Diego | California | 92123 | United States |
| Rancho Bernardo Surgery Center | San Diego | California | 92128 | United States |
| University Hospitals | Cleveland | Ohio | 44106 | United States |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
Scalpel will be used for the skin incision and traditional electrosurgery for the subcutaneous dissection. |
|
|
|
| Secondary | Estimated Blood Loss | Two subjects were removed from the analysis of secondary variables owing to protocol deviations. | Posted | Mean | Standard Deviation | mL | Intraoperative | breasts | Participants |
|
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|
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| Secondary | Operative Time | Two subjects were removed from the analysis of secondary variables owing to protocol deviations. | Posted | Mean | Standard Deviation | minutes | Intraoperative | breasts | Participants |
|
|
|
|
| Secondary | Amount of Tissue Removed | Two subjects were removed from the analysis of secondary variables owing to protocol deviations. | Posted | Mean | Standard Deviation | g | Intraoperative | breasts | Participants |
|
|
|
|
| Secondary | Dissection Performance | Amount of tissue (g) removed over time (min) | Two subjects were removed from the analysis of secondary variables owing to protocol deviations. | Posted | Mean | Standard Deviation | g/min | Intraoperative | breasts | Participants |
|
|
|
|
| 1 |
| 43 |
| 3 |
| 43 |
| EG001 | Standard of Care (SOC) | Scalpel will be used for the skin incision and traditional electrosurgery for the subcutaneous dissection. | 0 | 43 | 4 | 43 |
| Hematoma | Surgical and medical procedures |
|
| Seroma | Surgical and medical procedures | One seroma could not be attributed to either device as the device identification field was not completed; therefore, 1 seroma was added to both groups in the tabulation. |
|
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| D014947 | Wounds and Injuries |