Management of Large Sternal Wound Infections With the Superior Epigastric Artery Perforator Flap

Perforator-Based Cross-Midline Flaps of the Trunk: A Paradigm Shift in Flap Design

BACKGROUND

The traditional design for truncal perforator flaps is ipsilateral without midline decussation. The presumed rationale is to minimize the risk of distal flap necrosis. In this article, the authors present their experience and results with contralateral truncal perforator flaps designed and raised crossing the midline.

METHODS

This retrospective analysis included 43 patients (25 men and 18 women) who underwent reconstructive surgery from 1984 to 2021 using a contralateral flap design crossing the midline in the anterior trunk and upper back. Considerations included pathology, location, and the dimensions of the defect and flap. Arithmetic and weighted means with their 95% confidence intervals were estimated to compare ipsilateral and contralateral techniques.

RESULTS

Contralateral flaps used included the internal mammary perforator flap ( n = 28) superficial superior epigastric artery flap ( n = 8), superior epigastric perforator flap ( n = 2), and the second or ninth dorsal intercostal artery perforator flap ( n = 5). All of these flaps, excluding the superficial superior epigastric artery flap, demonstrated length and coverage surface averages that were significantly greater than those of traditional ipsilateral flaps. However, with the contralateral superficial superior epigastric artery, both measures were statistically similar to those of traditional ipsilateral flaps.

CONCLUSION

The anatomical variation design suggests that the trunk midline is not a barrier and that perforator flaps in these two regions may be raised on different longitudinal axes without compromising vitality.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Algorithms for perforator-based flaps in different anatomical locations

Introduction: Perforator-based flaps can be planned in any anatomic location in the body when there is a detectable perforator. Although preoperative perforator mapping ensures safety and versatility of these flaps, there is no consensus yet about flap planning in different anatomical locations. Material and Method: 28 patients underwent perforator-based flap surgery for different anatomical locations as face (5), sternum (3), back (5), lomber (4), sacral (4) and scrotal (4) areas, leg (2) and foot (1). 19 of the patients were male while 9 were female. The mean age was 58.1±13.5 (22-80 years). Perforator-based flaps were planned as V-Y design in face, sacral and scrotal areas while as perforator plus transposition flaps for lomber area, leg and sternum. On the other hand, for foot the flap was planned as subcutaneous-pedicled turnover flap. Results: The mean follow-up time was 10 months (3-36 months). Partial flap necrosis is seen in all 3 patients who had underwent flap surgery on the lower extremity. There were no other complications seen in short- or long-term follow-ups. Comorbid diseases were not statistically significant on complications rates (P>0.05). Conclusion: V-Y flap for the face and the sacral area; and perforator plus transposition flap for back ,lomber area and sternum are suggested as the ideal flap modifications for these anatomical locations. On the other hand, perforator-based flaps should not be used as a first choice in reconstruction of lower extremity defects.

Superior epigastric artery perforator flap for reconstruction of deep sternal wound infection

BACKGROUND

The treatment of deep wound sternal infection requires loco-regional pedicled flaps, usually with muscular flaps. Perforator propeller flaps represent the ultimate progress in the history of reconstructive surgery. We report here our experience with the superior epigastric artery perforator (SEAP) flaps to repair sternal defect.

PATIENTS AND METHODS

Six patients presenting deep sternal wounds infection were treated with SEAP propeller flap, between March 2015 and June 2017. The mean age was 71.5 (range 53-83) years. The mean length and width of the defect were 16.2 × 7 cm (ranging 8-20 × 4-10). An elliptical skin flap pedicled on the SEAP was harvested in the inframammary fold and rotated up to 90° to cover the defect.

RESULTS

All SEAP flaps achieved a successful entire coverage of the defect. The mean size of the skin paddle of the flap was 20.2 × 7.3 cm (ranging 14-27 × 6-9). All flaps were able to provide a complete sternal wound cover. Venous congestion was present in five cases and adequately treated by leech therapy; necrosis was distal in one case, and interesting the entire superficial flap in two cases but with deep tissues remaining viable and able to cover the mediastinum: an infected flap required revision. Satisfyingly, at 2-years postoperative follow-up all-patients were alive with a successful mediastinal cover.

CONCLUSIONS

The SEAP Perforator propeller flap is an alternative to muscle flaps to achieve treatment of deep and large sternal wound infection.

Breast reconstruction with superior epigastric artery perforator (SEAP) free flap: Report of two cases

The deep inferior epigastric artery perforator (DIEP) flap is the gold standard for autologous breast reconstruction. When the DIEP pedicle is damaged, alternative perforator flaps are harvested from sites with less donor tissue, such as the thigh. Pedicled superior epigastric artery perforator (SEAP) flaps have been recently described for reconstruction of inferior partial breast defects. The purpose of this report is to show the surgical technique of the free SEAP flap for reconstruction of the entire breast in two patients. The authors describe two patients where the DIEP pedicle was unavailable. The first patient was 53 years old, with body mass index (BMI) 22.7, while the second patient was 60 with BMI 32.4. The donor site was marked as for a DIEP, and two lateral row perforators were selected in each case. Flaps were designed to cross the midline, with adequate perfusion confirmed via indocyanine green angiography. Both flaps were rotated 90° counterclockwise for inset into the chest. Flap size and weight for the two patients were: 24 × 15 cm and 350 g; and 25 × 15 cm and 400 g. Both patients had a routine postoperative course without complications. Length of follow-up was 155 and 158 days, respectively. We believe that the free SEAP flap is a promising technique in select patients who require an alternative to the DIEP for autologous breast reconstruction.

Deep sternal wound infections: Evidence for prevention, treatment, and reconstructive surgery

Median sternotomy is the most popular approach in cardiac surgery. Post-sternotomy wound complications are rare, but the occurrence of a deep sternal wound infection (DSWI) is a catastrophic event associated with higher morbidity and mortality, longer hospital stays, and increased costs. A literature review was performed by searching PubMed from January 1996 to August 2017 according to the guidelines in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The following keywords were used in various combinations: DSWI, post-sternotomy complication, and sternal reconstruction. Thirty-nine papers were included in our qualitative analysis, in which each aspect of the DSWI-related care process was analyzed and compared to the actual standard of care. Plastic surgeons are often involved too late in such clinical scenarios, when previous empirical treatments have failed and a definitive reconstruction is needed. The aim of this comprehensive review was to create an up-to-date operative flowchart to prevent and properly treat sternal wound infection complications after median sternotomy.

Perforator-based propeller flaps reliability in upper extremity soft tissue reconstruction: a systematic review

Current data on upper extremity propeller flaps are poor and do not allow the assessment of the safety of this technique. A systematic literature review was conducted searching PubMed, EMBASE, and the Cochrane Library electronic databases, and the selection process was adapted from the preferred reporting items for systematic reviews and meta-analysis statement. The final analysis included ten relevant articles involving 117 flaps. The majority of flaps were used for the hand, distal wrist, and elbow. The radial artery perforator and ulnar artery perforator were the most frequently used flaps. The were 7% flaps with venous congestion and 3% with complete necrosis. No difference in complications rate was found for different flaps sites. Perforator-based propeller flaps appear to be an interesting procedure for covering soft tissue defects involving the upper extremities, even for large defects, but the procedure requires experience and close monitoring.

LEVEL OF EVIDENCE

II.

[Surgical reconstructive procedures of the chest wall after mediastinitis]

Sternal osteomyelitis as a direct consequence of advanced mediastinitis or as in most cases after median sternotomy is still associated with a prolonged hospital stay, increased morbidity and postoperative mortality. Early diagnosis and an adequate surgical treatment are decisive for the prognosis. Prerequisites for a secondary stabilization of the chest wall using wires or plates are sterile wound conditions. Diverse reconstructive techniques are available for anterior chest wall reconstruction depending on the defect size and localization. The various reconstructive methods including local and free flap coverage are described in this review article.