Laparoscopic omental flap for the treatment of thoracic aortic graft infection: report of two cases and review of the literature

Current Research on the Use of the Omental Flap in Breast Reconstruction and Post-Mastectomy Lymphedema: A Focus on Omental-Vascularized Lymph Node Transfer

The novel use of the omental flap in breast reconstruction has been increasing in research popularity within the last few decades. This technique has its roots in the early 20th century as surgeons explored the use of the omentum for a variety of reconstructive purposes across various surgical subspecialties. The current literature shows evidence of the benefits of using the omentum in autologous breast reconstruction compared to the more traditional abdominal, flank, thigh, and gluteal donor flap reconstruction. This method introduces a viable option for patients that do not meet the criteria for the traditional autologous reconstruction techniques allowing for the restoration of more natural appearing breasts without the added complication of donor-site mortality. Additionally, the omentum, with its rich source of vascularized lymph nodes, has been studied as a potential source for lymph node transfer in the treatment of mastectomy-associated lymphedema. In this review, we highlight the most recent research on the current practices of omental-based breast reconstruction techniques and their use in postmastectomy lymphedema. We discuss the history and natural progression of the development of omental-based reconstruction as an autologous breast reconstruction technique, highlight the latest advances and challenges for the utility of the omental flap in current surgical procedures, and present future directions for the potential role of omental-based breast reconstruction in postmastectomy breast surgery.

Robotic-assisted closed-chest management of a fungal-infected prosthetic aortic graft: a case report

Background

Fungal prosthetic graft infections are associated with high mortality, typically requiring aggressive surgical debridement. We present an alternative, minimally invasive approach to address these challenging clinical cases.

Case presentation

A 76-year-old Caucasian male with prior aortic root and arch replacement presented with localized chest wall tenderness after being hit by a car door. Computed tomography angiogram incidentally identified fluid in the anterior mediastinum, surrounding his ascending aortic graft. Rather than undertaking a high-risk reoperative sternotomy and redo complex aortic reconstruction, we elected to proceed with a robotic-assisted, minimally invasive debridement of the aortic graft, coupled with an omental wrap, entirely within the closed chest. Microbiology was positive for Aspergillus species. The patient made an uncomplicated recovery and was discharged home on antifungal therapy, likely to continue indefinitely.

Conclusions

Infected prosthetic aortic grafts can be successfully managed with debridement and pedicled omental flap coverage via a minimally invasive approach within the closed chest, obviating the morbidity of a complex reoperative open procedure.

Management and Outcomes of Proximal Aortic Graft Infection: A Systematic Review

OBJECTIVE

Proximal aortic graft infection (PAGI) is a rare but often fatal postoperative complication. Its management often relied on surgical preferences and resource availability of each centre, until the recent unifying guidelines published by the European Society for Vascular Surgery (ESVS). This paper aimed to amalgamate the published experience in managing PAGI and their outcomes.

METHODS

PubMed, Scopus and Cochrane Library databases were searched systematically. All primary studies besides single-patient case reports were included. Data extracted included study and patient characteristics, type of index surgery, type of microorganisms involved, definitive treatment modality, and any outcome measures reported.

RESULTS

Of the 20 studies included, 157 of the 290 PAGI patients underwent complete graft explantation and replacement, 106 underwent graft-preservation interventions (debridement and/or irrigation), and 25 had antibiotics alone. Adjunctive interventions included graft coverage, vacuum-assisted closure, use of infection-resistant graft materials, and lifelong suppressive therapy. In-hospital mortality was 20.8% (n=60), with postoperative sepsis and multiorgan failure (n=24) being the most common cause. Recurrent infection occurred in 10 post-discharge patients. Post-discharge mortality rate was 11.4% (n=33), with cardiac complications and stroke being the most common cause in surgically-treated and medically-treated patients, respectively.

CONCLUSIONS

Given the risk of mortality, the management approach of PAGI highly depends on the fitness of the patient. We believe that early referral to specialised aortic centres is essential to plan for optimal management strategies and improve patient outcomes. Further studies are also required to parse out the most effective adjunctive interventions to maximise patient outcomes.