Negative Pressure in PAP Donor Sites

Chang Gung Medical Foundation

Status: Completed

Conditions: Breast Reconstruction

Treatments: Device: Closed incisional negative pressure wound therapy (iNPWT) system

Study type: Observational

Funder types: Other

Identifiers

NCT05491473

202101649B0

Details and patient eligibility

About

A retrospective chart review will be conducted to identify patients who received breast reconstruction using free profunda artery perforator (PAP) flap by the investigators from January 2015 to August 2021. The included patients will be grouped into two according to the application of incisional negative pressure wound therapy (NP) on the donor site. Patients' demographic data including their age at the surgery, body mass index (BMI), medical comorbidities including the hypertension and diabetes, and smoking history will be obtained from the retrospective chart review. Parameters of the flap will be carefully reviewed, including the flap harvested width, and flap harvested length, the flap harvested and used size, the size of the mastectomy, the ischemia time of the flap. The major interest is in the donor site management and patient's overall recovery. The complications of the donor site will be categorized into acute and chronic ones depending on the time of presence. Donor site complications, such as wound break down, hematoma, seroma, the total amount of the drainage will be recorded. The cutting time point for acute and chronic complications is 1 month. The total amount of drainage from the drainage tube inserted and the patients' off-bed time (day) will also be recorded. Besides, for patients with follow up time of more than 1 year, the scar will be evaluated using Vancouver scar scale.

Statistics Data will be analyzed using graphing and statistical analysis software SPSS 21 software (IBM, Chicago, Illinois, USA). Rank sum and independent t test will be applied to calculate continuous variables in demographic values, while Chi-square will be applied to calculate categorical variables such as postoperative complications. A probability of less than 0.05 will be considered significant.

Potential risks: No

Confidentiality:

All the patient identifiable information, which includes name, chart number and birthday, involved in the study will be strictly confidential.

Enrollment: 25 patients

Sex: Female

Volunteers: No Healthy Volunteers

Inclusion criteria

• patients who underwent unilateral microsurgical breast reconstruction using PAP flaps from the PI (JJH) from November 2016 to August 2020

Exclusion criteria

• patients with delayed reconstruction

Trial design

25 participants in 2 patient groups

Control

Description:

Patients who did not receive the application of iNPWT at the donor site.

Negative pressure

Description:

Patients who received the application of iNPWT at the donor site.

Treatment:

Device: Closed incisional negative pressure wound therapy (iNPWT) system