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Single Centre Study to Compare Harmonic Scalpel to Conventional Diathermy in Free Tissue Transfer Breast Reconstruction

Comparison of Harmonic Scalpel to Conventional Diathermy in Free Tissue Transfer for Breast Reconstruction

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00778947
Acronym
HARMONIC001
Enrollment
0
Registered
2008-10-24
Start date
2008-11-30
Completion date
Unknown
Last updated
2016-05-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Reconstruction

Keywords

Breast Reconstruction, Halmonic Scalpel, diathermy, Free Tissue Transfer

Brief summary

The purpose of this single centre study is to evaluate whether the use of Harmonic Synergy Dissecting Hook (Harmonic Scalpel) in breast reconstruction surgery is superior to conventional diathermy in terms of improving ease and speed of perforator dissection, reducing postoperative pain, days of hospital stay and time taken to return to daily activities.

Interventions

PROCEDUREHarmonic Synergy Dissecting Hook (Harmonic Scalpel)

Harmonic Synergy Dissecting Hook (Harmonic Scalpel) uses ultrasound waves to coagulate and cut in surgery. It is available on the market, holds a CE mark and is coded as a Class IIb medical device.

Electrosurgery uses high temperatures (150-400oC) and causes obliterative coagulation. Diathermy is the use of high frequency electric current to produce heat. In surgery it is used to cut or destroy tissue and/or to produce coagulation. The electrical frequency produced in diathermy is in the range of 300kHz to 3MHz.

Sponsors

St Andrew's Centre for Plastic Surgery
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Female patients aged between 18 and 80 years old 2. Able to comprehend, follow, and provide written informed consent. 3. Willingness to comply with study requirements including follow-up visits

Exclusion criteria

1. Patients who have a pacemaker 2. Pregnant or breast feeding females. 3. General contraindication for surgery as deemed by the PI (e.g. physically unfit) 4. Patients who smoke 5. Diabetic patients 6. Patients who are receiving permanent analgesics 7. Patients receiving anti-coagulation therapy. 8. Patients with a physical or psychological condition which would impair participation in the study. 9. Participation in any other device or drug study within 90 days prior to enrollment. 10. Planned participation in any other medical device study during the timeframe of this study.

Design outcomes

Primary

MeasureTime frame
The speed of flap harvest measured as the time from knife to skin to the flap being removed from the patient.At surgery

Secondary

MeasureTime frame
Re-operation requiredpost operation for 6 months
Ease of flap harvest: the subjective opinion of the surgeon based on structured questionnaireAt surgery
Post operative pain, based on the visual analogue scale at 3, 6, 12 and 24 weeks post operatively.3, 6, 12 and 24 weeks post operation
Rates of post operative infectionpost operation for 6 months
Incidence of abdominal (donor site) wound dehiscencepost operation for 6 months
Number of days of hospitalisationpost operation for 6 months
Return to theatrepost operation for 6 months
Incidence of seromapost operation for 6 months
Post operative drainage from the woundpost operation for 6 months
Impact on daily activities (SF-36 Questionnaire) at 3, 6, 12 and 24 weeks post operatively3, 6, 12, and 24 weeks post operation
Bleeding complicationsintra operation and for 6 months post op

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026