A b s t r a c tThe incidence rate of the infected and complex wound is established at approximately 40 000/1 million of the world's adult population. The aim of this study was to assess the efficiency of three novel types of wound dressings comprising sodium chloride, metatitanic acid and silicon dioxide nanoparticles. The study design was to prove their antimicrobial properties against the microorganisms most commonly causing wound infections. The study evaluated the antimicrobial effect of tested dressings on referenced strains of bacteria (ATCC collection, Argenta, Poland) and strains of fungi species (our own collection of fungi cultured from patients). The dressings were tested with both bacterial and fungal strains on solid media (Mueller-Hinton, Sobouraud, bioMerieux, France) in the standard method. The results confirmed the inhibition of growth of bacteria and revealed zones of inhibition for Escherichia coli, Staphylococcus aureus and Enterococcus faecalis. Significant zones of inhibition were established for Staphylococcus aureus and for fungi species of the Candida sp. These results would be crucial due to the fact of the low availability of antifungal therapeutics for both systemic and topical usage. Moreover, the current standard of antifungal treatment is associated with high costs and high toxicity in general. The preliminary results are very promising but further studies are necessary. Based on the obtained results, the tested dressings may contribute to the development of the surgical armamentarium of complex wound management in the near future.
Introduction: Although introduction of the laparoscopic approach for adrenal gland surgery revolutionized the strategy in management of adrenal gland tumors, open surgery is still a method of choice in some clinical scenarios. Moreover, laparoscopy may have limitations resulting in conversion.Aim: To assess risk factors predisposing for conversion based on our own material, including 256 laparoscopic adrenalectomies performed in 2009-2016. Material and methods: A retrospective analysis of patients who underwent adrenalectomies between 2009 and 2016 was conducted. Patients were analyzed for sex, body mass index (BMI), size of the adrenal gland lesion, final histopathological diagnosis and operated side of the adrenal gland, its impact on conversion rate.Results: A total of 256 patients underwent laparoscopic adrenalectomy. The reported study comprised of 94 (36.7%) men and 162 (63.3%) women. The most common indication for adrenalectomy were adrenal cortex adenoma (n = 149; 58.2%) and pheochromocytoma (n = 48; 18.75%). The conversion rate was 3.91% (n = 10 patients). Mean BMI of patients without conversion was 27.6 kg/m 2 , whereas in the group of patients with conversion, BMI was 29.7 kg/ m 2 (p > 0.05). The conversion rate was precisely the same when comparing the right (5/126; 3.9%) and left (5/126; 3.9%) adrenal gland. There was no correlation between the size of the adrenal lesion and the risk of conversion. Conclusions: The laparoscopic approach remains an efficient and safe procedure for adrenal gland tumors. Based on our study, obese patients and those with pheochromocytoma are associated with a higher risk of conversion but without any statistical significance. There was no difference in the conversion rate when analyzing the size of the adrenal gland tumor. No difference was also revealed in the conversion rate when comparing both sides of laparoscopic adrenalectomy.
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