In the field of hernia surgery, there have been many advances in techniques that have provided the surgeon with a variety of options to repair the difficult abdominal wall hernia. Regardless of the ...technique, the ultimate goal was to provide a tension-free repair, which attempts to approximate the midline while returning abdominal wall musculature to its normal anatomic position, thus providing the patient with both a cosmetic and durable result with or without the use of a prosthetic reinforcement. Component separation techniques have been widely popularized as techniques to repair complex hernias and are frequently categorized based upon the anatomic location of the myofascial release. CSTs are generally categorized as either an anterior component separation or posterior component separation based upon the surgical approach to the abdominal wall musculature. This report objectively outlines the various techniques of component separation and specifically compares the outcomes among techniques to facilitate decision making in abdominal wall reconstruction.
Factors affecting the electronic communication believed to be responsible for the enhanced solution electrochemistry observed at electrodes modified with hybrid polyelectrolyte–nanoparticle (PE–NP) ...film assemblies were systematically investigated. Specifically, the faradaic current and voltammetric peak splitting recorded for cyclic voltammetry of ferricyanide redox species (Fe(CN)
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3−/4−) at films constructed with various architectures of citrate-stabilized gold NPs embedded in polyelectrolyte films composed of poly-
l-lysine and poly-S-styrene were used to establish the relative importance of both distance and electronic coupling. Layer-by-layer construction of PE–NP films allowed for the position and density of NPs to be varied within the film to assess electronic coupling between particles (interparticle coupling) as well as at the electrode–film interface. The cumulative results observed at these films suggest that, while distance dependence prevails in nearly every case and interparticle coupling can contribute to facilitating the Fe(CN)
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3−/4− electrochemistry, interfacial electronic coupling of the PE–NP films is of critical importance and decoupling is easily achieved by disengaging NP–electrode interactions.
We have presented the case of a symptomatic, primarily infected aortic pseudoaneurysm treated with endovascular stent graft exclusion and adjunctive use of a long-acting biocomposite antibiotic ...material injected directly into the pseudoaneurysm sac. We have described preparation of the biocomposite antibiotic material and the catheter-directed delivery technique in detail. Although the use of long-acting antibiotic materials such as antibiotic beads has been well described when performing open surgery in an infected field, the application of these materials in endovascular procedures has been less certain. The techniques we have described have the potential to promote field sterilization in a minimally invasive manner for patients with aortic infections who could be poor candidates for open surgery.
