CHIRURGIE cells, and additive effects were shown in MCF7 and SKBR3 cells. Also, combination with doxorubicin had antagonistic effects in T47D cells. Doxorubicin caused up-regulation of phosphorylated ERK in T47D cells, which was not inhibited by NVP-AEW541. CONCLUSION: Antagonistic effects should be anticipated when IGF1R inhibitors are combined with conventional systemic drugs in a subset of breast tumors. Development of functional biomarkers predicting tumor response to tailored IGF1R therapy is warranted. The surgical anatomy of the small saphenous vein and adjacent nerves in relation to endovenous thermal ablatio. Kerver AL, Van der Ham AC, Theeuwes HP, Eilers PH, Poublon AR, Kerver AJH, Kleinrensink GJ. J Vasc Surg 56 (1):181-8 2012. PMID: 22503186. BACKGROUND: Thermal damage to peripheral nerves is a known complication of endovenous thermal ablation (EVA) of the small saphenous vein (SSV). Therefore, the main objective of this anatomic study was to define a safe zone in the lower leg where EVA of the SSV can be performed safely. METHODS: The anatomy of the SSV and adjacent nerves was studied in 20 embalmed human specimens. The absolute distances between the SSV and the sural nerve (SN) (closest/nearest branch) were measured over the complete length of the leg (>120 data points per leg), and the presence of the interlaying deep fascia was mapped. The distance between the SSV and the tibial nerve (TN) and the common peroneal nerve was assessed. A new analysis method, computer-assisted surgical anatomy mapping, was used to visualize the gathered data. RESULTS: The distance between the SSV and the SN was highly variable. In the proximal one-third of the lower leg, the distance between the vein and the nerve was <5 mm in 70% of the legs. In 95%, the deep fascia was present between the SSV and the SN. In the distal two-thirds of the lower leg, the distance between the vein and the nerve was <5 mm in 90% of the legs. The deep fascia was present between both structures in 15%. In 19 legs, the SN partially ran beneath the deep fascia. In the saphenopopliteal region, the average shortest distance between the SSV and the TN was 4.4 mm. In 20%, the distance was <1 mm. The average, shortest distance between the SSV and the common peroneal nerve was 14.2 mm. The distance was <1 mm in one leg. CONCLUSIONS: At the saphenopopliteal region, the TN is at risk during EVA. In the distal two-thirds of the lower leg, the SN is at risk for (thermal) damage due to the small distance to the SSV and the absence of the deep fascia between both structures. The proximal one-third of the lower leg is the optimal region for EVA of the SSV to avoid nerve damage; the fascia between the SSV and the SN is a natural barrier in this region that could preclude (thermal) damage to the nerve. Bariatric surgery with OR teams that stayed fixed during the day: a mulicenter analyzing the effects on patiënt outcomes, teamwork and safety climate and duration. Stepaniak PS, Heij C, Buise MP, Mannaerts GHH, Smulders JF, Nienhuis SW. Anesth Analg 2012, Epub 2012 nov 9. PMID: 23144431. BACKGROUND: Bariatric surgery durations vary considerably because of differences in surgical procedures and patient factors. We studied the effects on patient outcomes, teamwork and safety climate, and procedure durations resulting from working with operating 17 WETENSCHAPPELIJK jaarverslag 2012 Pagina 16
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