Kongkrit Chaiyasate, MD, FACS
Board-Certified Plastic Surgeon
Comprehensive Guide
DIEP Flap Breast Reconstruction
A detailed resource on the gold standard in autologous breast reconstruction — using your own tissue for natural, lasting results.
Understanding the Procedure
What is DIEP Flap Surgery?
DIEP flap surgery is an autologous breast reconstruction technique that utilizes a patient's own tissue — specifically skin, fat, and blood vessels — from the lower abdomen to reconstruct the breast following mastectomy or lumpectomy. The acronym DIEP stands for Deep Inferior Epigastric Perforator, referring to the blood vessels that supply the transferred tissue.
What distinguishes the DIEP flap from older techniques like the TRAM flap is its muscle-sparing nature. While the TRAM flap requires cutting through the rectus abdominis muscle, the DIEP flap carefully dissects around it, preserving abdominal wall integrity and significantly reducing the risk of hernias, weakness, and chronic pain at the donor site.
"The DIEP flap is considered the gold standard for autologous breast reconstruction, utilizing abdominal skin and fat while preserving muscles and fascia."
— The Plastics Fella, 2024
Vascular Foundation
Anatomical Considerations
The success of the DIEP flap relies on a thorough understanding of the vascular anatomy of the lower abdomen. The primary blood supply is the Deep Inferior Epigastric Artery (DIEA), which originates from the external iliac artery approximately 1 cm cranial to the inguinal ligament. This artery typically measures 3–4 mm in diameter, with a pedicle length ranging from 14–18 cm.
Perforator vessels — small blood vessels that pierce through the rectus abdominis muscle to supply the overlying skin and fat — are crucial for flap viability. These perforators are typically located approximately 2 cm above and 6 cm below the umbilicus, within 1–6 cm laterally. Medial perforators show greater branching and robust vascularity capable of crossing the midline, while lateral perforators provide reliable vascularity only on the ipsilateral side.
Hartrampf's Zones of Perfusion
| Zone | Description | Reliability |
|---|---|---|
| I | Correlates to the zone of the selected perforator | Most Reliable |
| II | Adjacent to Zone I on the contralateral hemi-abdomen | Moderate |
| III | Lateral to Zone I on the ipsilateral side | Lower |
| IV | Lateral to Zone II, most distant from primary supply | Usually Avoided |
Arterial Diameter
3–4 mm
Pedicle Length
14–18 cm
Venous Diameter
3.5–4.5 mm
Step by Step
The Surgical Procedure
Dr. Kongkrit Chaiyasate, MD, FACS
In the operating room with state-of-the-art microsurgical equipment including the surgical microscope and high-frequency ultrasound
Surgical Illustrations
Standard DIEP Flap
Single pedicle — abdominal tissue is harvested with one set of deep inferior epigastric perforator vessels and transferred to reconstruct the breast.
Bi-Pedicle DIEP Flap
Dual pedicle — both sets of deep inferior epigastric perforator vessels are used, providing enhanced blood supply for larger volume reconstructions.
The DIEP flap procedure is a complex microsurgical operation that typically takes six to eight hours. It can be broken down into four key components: preoperative planning, flap harvesting, microsurgical anastomosis, and flap shaping and inset. In cases where greater tissue volume is needed, a bi-pedicle DIEP flap technique can be employed, utilizing both sets of deep inferior epigastric perforator vessels for enhanced blood supply and larger flap dimensions.
Preoperative Planning
Advanced imaging techniques such as CT or MR angiography are used to map the dominant perforators. Surface markings outline the elliptical flap, typically around 13 cm high and 35–40 cm wide. Anaesthetic setup includes venous access, Doppler monitoring, and patient positioning with calf pumps and drapes.
Flap Harvesting
The surgeon performs precise dermal and subcutaneous dissection to Scarpa's fascia. Perforators are matched to imaging for optimal vascular supply. A myotomy is performed to dissect the deep inferior epigastric artery perforators through the rectus abdominis muscle, preserving muscle integrity, continuity, and innervation.
Microsurgical Anastomosis
The recipient vessels in the chest — typically the internal mammary vessels — are exposed using rib-sparing techniques. The flap's artery and vein are then connected to these recipient vessels under a surgical microscope. Acland's test is used to ensure proper blood flow through the anastomosis.
Flap Inset & Shaping
The flap is rotated 180° and carefully inset into the breast pocket. The surgeon shapes the tissue to create a natural-looking breast mound, ensuring tension-free placement with the pedicle free from kinking or compression. Drains are placed in both the abdominal and chest incisions.
Weighing the Options
Benefits & Risks
Benefits
Natural Appearance
Uses your own tissue for a more natural look, feel, and ptosis compared to implants.
Permanent Results
No risk of rupture, hardening, or shifting — the reconstructed breast ages naturally.
Muscle Preservation
No abdominal muscle is cut or removed, preserving core strength and reducing hernia risk.
Potential Sensation
Sensory nerves from the flap can sometimes be connected to restore breast sensation.
Risks & Complications
Flap Necrosis
Partial or complete loss of the flap due to insufficient blood supply — uncommon but serious.
Fat Necrosis
Firm lumps or scar tissue may form if some fat cells do not receive adequate blood supply.
Abdominal Complications
Abdominal wall weakness, hernias, or bulges can occur, though less commonly than with TRAM flaps.
Longer Recovery
Surgery takes 6–8 hours with a 6–8 week recovery period, longer than implant-based reconstruction.
DIEP Flap vs. Other Methods
| Feature | DIEP Flap | TRAM Flap | Implants |
|---|---|---|---|
| Tissue Source | Abdominal skin & fat | Abdominal skin, fat & muscle | Silicone or saline |
| Muscle Preserved | Yes | No | N/A |
| Natural Feel | Excellent | Good | Moderate |
| Surgery Duration | 6–8 hours | 4–6 hours | 1–2 hours |
| Recovery Time | 6–8 weeks | 6–8 weeks | 2–4 weeks |
| Long-term Revisions | Rarely needed | Sometimes | Often needed |
Restoring Feeling
Breast Resensation
One of the most significant advances in breast reconstruction is the ability to restore sensation to the reconstructed breast through a technique known as resensation (breast neurotization). During a mastectomy, sensory nerves are inevitably cut as breast tissue is removed, leaving the chest area without feeling. This loss of sensation can profoundly impact a patient's quality of life, body image, intimacy, and even safety — as the inability to feel heat or cold can lead to accidental burns or injuries.
Resensation uses processed nerve allograft tissue to bridge the gap between the nerves in the chest wall and the sensory nerves within the transferred flap tissue. During DIEP flap reconstruction, Dr. Chaiyasate identifies the sensory nerve within the flap — typically a branch of the intercostal nerve — and connects it to a recipient nerve in the chest wall. The allograft serves as a biological scaffold, guiding the nerve to regenerate across the gap and ultimately restore sensation to the reconstructed breast.
How Resensation Works
Nerve Identification
During flap harvest, the surgeon identifies and preserves the sensory nerve within the DIEP flap tissue, as well as the recipient nerve in the chest wall.
Nerve Coaptation
A processed nerve allograft is used to bridge the gap between the flap's sensory nerve and the chest wall nerve, creating a pathway for regeneration.
Nerve Regeneration
Over months, the nerve slowly regenerates through the graft. Patients may begin to feel sensation within several months, with continued improvement for up to two years.
Benefits of Resensation
Improved Quality of Life
Studies show women who undergo nerve repair experience higher overall physical and emotional well-being.
Better Body Image
Restored sensation helps patients feel more connected to their reconstructed breast, improving self-esteem and confidence.
Safety from Injury
Regaining the ability to feel temperature protects against accidental burns and other injuries to the reconstructed breast.
Long-term Improvement
Nerve regeneration continues for up to two years, with sensation progressively increasing over time.
"Women have a right to breast reconstruction after a mastectomy, but that reconstruction has been limited to shape until now. It's time to expand the definition to restoring sensation, too."
— Ivica Ducic, MD, PhD
Resensation can be performed during the initial DIEP flap reconstruction or as a secondary procedure for patients who have already undergone reconstruction. Dr. Chaiyasate offers this advanced technique as part of his comprehensive approach to breast reconstruction, ensuring patients have the opportunity for the most complete recovery possible — not just in shape, but in feeling.
The Healing Journey
Recovery Timeline
Recovery from DIEP flap surgery is a gradual process that requires patience and careful adherence to your surgical team's instructions. Dr. Chaiyasate and his team provide detailed post-operative guidance to ensure the best possible outcome for each patient.
Days 1–3
Hospital Recovery
You will remain in the hospital under close monitoring. Expect to begin walking multiple times the day after surgery. Surgical drains will be in place to remove fluid and reduce swelling.
Weeks 1–2
Early Home Recovery
Focus on incision care, managing drains, and taking prescribed medications. Activity is limited — avoid lifting, driving, and strenuous movement. Follow-up appointments will assess healing progress.
Weeks 3–4
Increased Mobility
Gradual increase in daily activities. Drains are typically removed during this period. Light walking is encouraged, but heavy lifting and exercise remain restricted.
Weeks 5–6
Approaching Normalcy
Most patients can begin driving and return to light work. Swelling continues to decrease, and the reconstructed breast begins to settle into its final shape.
Weeks 6–8+
Full Recovery
Resumption of most normal activities, including exercise. The abdominal donor site continues to heal. Full aesthetic results may take several months to a year to fully develop.
Evidence-Based Results
Patient Satisfaction & Outcomes
Numerous studies have consistently demonstrated high levels of patient satisfaction and improved quality of life following DIEP flap breast reconstruction. Research using validated instruments like the BREAST-Q questionnaire shows that DIEP flap patients typically score higher in domains such as "Satisfaction with Breasts" and "Psychosocial Well-being" compared to those with implant-based reconstructions.
78.7%
DIEP flap patients reported satisfaction
vs. 31.6% for expander/implant
80%
General satisfaction rate for DIEP patients
Yueh et al., 2010
Long-term follow-up studies confirm that autologous reconstruction using a DIEP flap achieves the best scores among reconstruction methods at five years postoperatively. The reconstructed breast ages naturally with the patient, maintaining its appearance over time without the need for the periodic revisions often associated with implant-based approaches.
"DIEP had the best scores among the three procedures at 5 years postoperatively. Thus, autologous reconstruction using a DIEP flap is recommended in terms of long-term satisfaction and quality of life."
— Shiraishi et al., Frontiers in Oncology, 2022
Dr. Chaiyasate performing DIEP flap microsurgery with high-powered surgical loupes and headlight — the precision instruments essential for connecting vessels less than 2mm in diameter
Kongkrit Chaiyasate, MD, FACS
Board-Certified Plastic Surgeon
Dr. Chaiyasate is a fellowship-trained microsurgeon specializing in DIEP flap breast reconstruction. With advanced training in microsurgical techniques, he is dedicated to providing patients with the most natural and lasting reconstructive outcomes using autologous tissue transfer.
As a Fellow of the American College of Surgeons (FACS), Dr. Chaiyasate brings the highest standards of surgical excellence and patient care to every procedure.
(947) 274-8300
36800 Woodward Ave, Suite 112, Bloomfield Hills, MI 48304
Sources
References
- DIEP Flap Surgery: Breast Reconstruction, Recovery & Results. Cleveland Clinic. clevelandclinic.org
- DIEP Flap Reconstruction: Anatomy, Key Surgical Steps, & Complications. The Plastics Fella, 2024. theplasticsfella.com
- Sgarzani, R. et al. (2015). Patient Satisfaction and Quality of Life in DIEAP Flap versus Expander/Implant Breast Reconstruction. Plastic and Reconstructive Surgery Global Open, 3(11), e564. PMC
- Shiraishi, M. et al. (2022). Long-term patient satisfaction and quality of life following breast reconstruction. Frontiers in Oncology, 12, 815498. Frontiers
- Yueh, J. H. et al. (2010). Patient satisfaction in postmastectomy breast reconstruction. Plastic and Reconstructive Surgery, 125(6), 1585–1595. PubMed
- Chun, Y. S. et al. (2010). Comparison of Morbidity, Functional Outcome, and Satisfaction Following Bilateral TRAM Versus Bilateral DIEP Flap Breast Reconstruction. Plastic and Reconstructive Surgery, 126(4), 1143–1151. LWW
- Spiegel, A. J. et al. (2013). Breast Reinnervation: DIEP Neurotization Using the Third Anterior Intercostal Nerve. Plastic and Reconstructive Surgery Global Open, 1(8), e72. PMC
- Tevlin, R. et al. (2022). Is nerve coaptation associated with improved sensation after autologous breast reconstruction? Microsurgery, 43(2), 134–143. Wiley
- Sensation of the autologous reconstructed breast improves quality of life. Plastic and Reconstructive Surgery Global Open, 2018. PMC
Common Questions
Frequently Asked Questions
Ideal candidates have sufficient abdominal tissue for reconstruction and are in good overall health. Women who have had previous extensive abdominal surgery (such as a full tummy tuck) may not be candidates. During your consultation, Dr. Chaiyasate will evaluate your anatomy using CT angiography to map the blood vessels and determine if DIEP flap is right for you.
Yes. Immediate reconstruction is performed at the same time as the mastectomy, meaning you wake up with a reconstructed breast mound. This approach reduces the total number of surgeries and can have psychological benefits. Delayed reconstruction is also an option for patients who have already undergone mastectomy.
A standard DIEP flap uses tissue supplied by perforator vessels from one side of the abdomen. A bi-pedicle DIEP flap uses perforator vessels from both sides, providing a larger volume of tissue and a more robust blood supply. Dr. Chaiyasate determines which approach is best based on your anatomy and reconstruction goals.
Yes. Under the Women's Health and Cancer Rights Act (WHCRA) of 1998, health insurance plans that cover mastectomy must also cover breast reconstruction, including DIEP flap surgery. This includes reconstruction of the affected breast, surgery on the other breast for symmetry, prostheses, and treatment of physical complications at all stages of mastectomy.
DIEP flap surgery typically takes 6 to 8 hours for unilateral (one breast) reconstruction and 8 to 10 hours for bilateral (both breasts). Most patients stay in the hospital for 3 to 5 days. The flap is closely monitored during this time to ensure healthy blood flow.
Most patients return to light daily activities within 2 to 3 weeks and can resume full activities, including exercise, by 6 to 8 weeks. You will have temporary surgical drains and will need to avoid heavy lifting during the initial recovery period. Dr. Chaiyasate provides detailed recovery instructions tailored to each patient.
With the resensation technique, Dr. Chaiyasate can reconnect nerves during DIEP flap reconstruction to help restore sensation. Nerve regeneration is gradual — patients may begin to feel sensation within several months, with continued improvement for up to two years. Without nerve repair, some patients still regain partial sensation over time.
The donor site incision is similar to a tummy tuck scar, running low across the abdomen from hip to hip. Most patients also benefit from a flatter, more contoured abdomen after surgery. Because the DIEP flap preserves the abdominal muscles, core strength and function are maintained.
Inside the Practice
Gallery
Microsurgical Precision
Dr. Chaiyasate performing DIEP flap surgery wearing high-powered surgical loupes and a headlight — essential for the delicate dissection of perforator vessels through the rectus abdominis muscle.
State-of-the-Art Operating Room
Dr. Chaiyasate alongside the surgical microscope and Vevo MD high-frequency ultrasound system used for real-time vessel mapping and postoperative flap monitoring.
Standard DIEP Flap
Illustration showing the single-pedicle technique: abdominal skin and fat are harvested with one set of deep inferior epigastric perforator vessels, shaped into a breast mound, and microsurgically connected to the internal mammary vessels in the chest.
Bi-Pedicle DIEP Flap
Illustration showing the dual-pedicle technique: perforator vessels from both sides of the abdomen are used, providing a larger tissue volume and more robust blood supply — ideal for patients requiring greater volume or bilateral reconstruction.
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