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Feasibility and Safety of Single-Port Robotic-Assisted Deep Inferior Epigastric Pedicle Flap Harvest

Feasibility and Safety of Single-Port Robotic-Assisted DIEP Flap Harvest for Breast Reconstruction: A Prospective Evaluation

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07222514
Acronym
(DIEP)
Enrollment
4
Registered
2025-10-30
Start date
2026-05-20
Completion date
2028-12-01
Last updated
2026-05-27

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

Conditions

DIEP Flap Breast Reconstruction

Keywords

DIEP flap breast reconstruction, Robotic Surgery, Breast Reconstruction

Brief summary

The primary aim of this study is to evaluate the feasibility of single-port robotic surgery for DIEP flap breast reconstruction. The investigators will also investigate complications of the procedure, incision length, flap success rate, post operative pain, vascular pedicle length and caliber, and VMP-B score (quality of life/satisfaction of breast procedures survey).

Detailed description

This project will be conducted at Vanderbilt University Medical Center. Patients scheduled for a DIEP flap procedure will be recruited through screening of the electronic medical records (EMR) to evaluate eligibility based on pre-established inclusion and exclusion criteria. Eligible patients will be invited to participate in a preoperative consultation, during which they will receive detailed information about the study, including the surgical techniques, potential risks, and benefits. Written informed consent will be obtained from those who agree to participate. Baseline data available in the medical records as part of their clinical care, including patient demographics, medical history, imaging, pictures, pain and quality-of-life metrics, will also be collected. On the day of surgery, patients will undergo standard preoperative preparations. The procedure will involve robotic-assisted DIEP flap harvest using single-port access, followed by flap transfer and microsurgical anastomosis. Post-surgical donor site closure will employ techniques to minimize morbidity. Key intraoperative data, such as operative time and complications, will be recorded. Patient Electronic Medical Records (EMR) will be accessed by research personnel to monitor patients who elect to have the proposed procedure. Postoperative monitoring will focus on flap viability and patient recovery during the hospital stay and subsequent follow-ups. Assessments will include complications, donor site integrity, pain levels, and patient-reported outcomes. Follow-up visits will evaluate both short- and long-term outcomes, including satisfaction and quality of life, providing comprehensive data for the study's primary and secondary aims.

Interventions

DEVICESingle-Port Robotic System

Utilizing the Single-Port robotic system for DIEP flap harvest has been previously described, but only in a small pilot study. The investigators plan to demonstrate the feasibility and safety of this approach on a larger cohort of patients.

Sponsors

Vanderbilt University Medical Center
Lead SponsorOTHER
Intuitive Surgical
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DEVICE_FEASIBILITY
Masking
NONE

Eligibility

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

Inclusion criteria

* Female patients aged ≥18 years. * Candidates for unilateral or bilateral breast reconstruction using a DIEP flap. * No contraindications for general anesthesia or robotic surgery. * Patients with adequate abdominal donor tissue for DIEP flap harvest.

Exclusion criteria

* History of prior abdominal surgery that significantly compromises perforator vessel integrity. * Pregnant woman. * Prisoners. * BMI \> 35, as measured during the preoperative evaluation. * Presence of comorbidities that contraindicate elective surgery. * Active cancer other than breast cancer at the time of evaluation. * Active metastatic disease confirmed via imaging or biopsy. * Inability to comply with follow-up visits. * The research team decides to exclude the patient.

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of performing DIEP flap breast construction using a single port robotic systemFrom enrollment to the end of the procedure.This will be "Yes" if the following are true of the procedure: completed pedicle dissection using the robotic system, adequate pedicle dissected, and no intraoperative complication requiring conversion to the open approach.

Secondary

MeasureTime frameDescription
Complication RatesThrough study completion, an average of 1 year.Intraoperative and postoperative complications. Including, but not limited to: flap failure, internal structure injuries, deep venous thrombosis, etc.
Fascial Incision LengthThrough study completion, an average of 1 year.Measurement of the fascial incision length and prevalence of abdominal herniation or bulging through the incision.
Flap Success RateFrom procedure to 7 days post operation.We define flap success rate as survival of the flap without loss of viability through a specified time window.
Operative TimeFrom procedure start to procedure completion.The time interval between first skin incision to skin closure of the patient.
Pain LevelFrom procedure to postoperative day (POD) 1, 2, 3, 7, 14, and 30.The patient level of pain on a scale of 1 (no pain) to 10 (extreme pain).
Vascular Pedicle LengthDuring the operative procedure (approximately 6 - 10 hours, intraoperative measurement)The pedicle length used for anastomosis will be measured intraoperatively, reported in mm.
Vanderbilt Mini Patient Reported Outcome - Breast (VMP-B) ScoreFrom enrollment to 12 months post operation. Surveys will be distributed preoperatively and at postoperative follow up intervals (2 weeks, 6 weeks, 3 months, 6 months, and 12 months).The investigators will collect patient VMP-B (a validated patient reported outcome) scores to assess patient well being and satisfaction with their procedure. Items (16 total) are scored on a 5-point Likert scale, scores range from 16 (worst) to 80 (best).
Pain ManagementFrom procedure to postoperative day (POD) 1, 2, 3, 7, 14, and 30.The investigators will record what analgesics are used to control patient pain.
Vascular Pedicle CaliberDuring the operative procedure (approximately 6 - 10 hours, intraoperative measurement)The pedicle caliber used for anastomosis will be measured intraoperatively, reported in mm.

Countries

United States

Contacts

CONTACTEmmanuel Giannas, MD
e.giannas@vumc.org6154033398
CONTACTJun Yao
jun.yao@vumc.org
PRINCIPAL_INVESTIGATORGalen Perdiks, MD

Vanderbilt University Medical Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 28, 2026