Paramuscular perforators in DIEAP flap for breast reconstruction

Area of Science:

• Microsurgery
• Plastic Surgery
• Radiology

Background:

• Identifying the dominant perforator is crucial for successful perforator flap surgery.
• Deep inferior epigastric artery perforator (DIEAP) flap surgery is a common technique for breast reconstruction.
• Preoperative imaging using multidetector row computed tomography (MDCT) aids in surgical planning.

Purpose of the Study:

• To determine the frequency and characteristics of a specific type of dominant perforator identified via MDCT.
• To evaluate the utility of this perforator in deep inferior epigastric artery perforator (DIEAP) flap surgery for breast reconstruction.

Main Methods:

• Retrospective study of 526 DIEAP flaps in 482 patients undergoing breast reconstruction (October 2003 - October 2011).
• Preoperative MDCT of abdominal vascularization was performed for all patients.
• Analysis of perforator characteristics, including caliber, location, and trajectory.

Main Results:

• A dominant perforator with a paramuscular course was identified in 12.4% of abdominal walls.
• This perforator consistently located in the midline, originated from the deep inferior epigastric system, and had a mean caliber of 1.9 mm.
• Flap harvest based on this perforator averaged 51 minutes, with easier dissection, reduced donor site morbidity, and no flap losses.

Conclusions:

• A specific paramuscular perforator is present in 12.4% of patients undergoing DIEAP flap breast reconstruction.
• Its favorable morphological features and extramuscular course make it an ideal choice for DIEAP flap surgery.
• Utilizing this perforator can enhance surgical efficiency and patient outcomes.