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Late adjuvant chemotherapy (aCT) administration after colectomy (56 d) is known to be associated with impaired prognosis. We aim to identify risk factors associated with late aCT, especially the travel time between patients' home and hospital.We performed a retrospective monocentre cohort study. Patients included had a colectomy for a stage III or high risk stage II colon cancer between 2009 and 2015 performed at a French university hospital. Risk factors for late aCT were identified using a fractional polynomial logistic regression.Ninety-four patients were included. The risk of late aCT was associated with travel time length, emergent colectomy, the need for scheduled care before aCT, and length of time between colectomy and postoperative multidisciplinary meeting advising aCT.Our study suggests that, in patients with colon cancer, factors unrelated to disease severity and complexity could be associated with a higher risk of late aCT.

The inhibition effect of extracts obtained from the commercially insignificant, perennial and overgrowing plants in Tunisia such as Dwarf palm (DP) andCynara cardunculus(CC) plants leaves against St37 steel corrosion in 15% H(2)SO(4)has been investigated with weight loss experiments (WL) and classical electrochemical methods. The investigations were conducted at the various concentrations of studied extracts, experiment temperature and time. The obtained results were compared with electrochemical impedance spectroscopy (EIS), dynamic electrochemical impedance spectroscopy (DEIS) and surface imaging method outcomes. The results showed that DP and CC extracts exhibit good corrosion inhibitor for St37 steel in 15% H(2)SO(4)solution. From all applied methods, DP extracts approximately showed better inhibition efficiency than CC. The adsorption of the inhibitors was found to obey the Langmuir adsorption isotherm. Results of infrared spectroscopy (FTIR) and physical electronics spectrometry (XPS) analysis strengthen the authenticity of other experimental results by proving that the extract molecules have bonded with the surface of the St37 steel. Duzce University Research FundDuzce University [2018.06.05.817]; Turkiye Burslari [19IN001804] For this work, the authors gratefully acknowledge the financial support provided by the Duzce University Research Fund [Project No: 2018.06.05.817]. One of the authors, Marziya Rizvi, thankfully acknowledges financial support provided by Turkiye Burslari [19IN001804] for this research. WOS:000571097600001 2-s2.0-85091167619

The inhibition performance of Rosmarinus officinalis (RO) extract on the corrosion of carbon steel was examined using electrochemical and analytical techniques. Investigations were carried out in HCL 1 M solution at different temperatures. Results showed that the extract acted as a mixed-type inhibitor, and inhibition efficiency increased with increasing inhibitor concentration. The adsorption of the extract molecules onto the carbon steel surface followed the Langmuir adsorption model. To confirm these results, scanning electron microscopy (SEM), was applied.

The inhibition performance of an aqueous extract ofCynara cardunculusleaves on the corrosion of St37 steel immersed in seawater and seawater with bleach was investigated using weight loss measurements, electrochemical methods, and surface characterization techniques. It was found that the extract components acted primarily as a mixed-type inhibitor, and inhibition efficiency increased with increasing inhibitor concentration. Electrochemical impedance spectroscopy (EIS) and dynamic electrochemical impedance spectroscopy (DEIS) confirmed the formation of a protective layer on the metallic surface in both solutions. The adsorption of inhibiting molecules conformed to the Langmuir isotherm model. The thermodynamic parameter values indicated that chemisorption constituted the major contribution to the adsorption process. This result was corroborated by scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analyses. The significant inhibition effect can be related to the large amount of phenolic compounds in the CC aqueous extract as revealed by the Fourier-transform infrared (FTIR) spectrum. WOS:000541956100001 2-s2.0-85086520882

Objectif : Notre objectif etait de construire, a partir du Programme de medicalisation des systemes d’information (PMSI), un indicateur de suivi des delais d’initiation de la chimiotherapie (CT) adjuvante pour cancer du colon et de l’evaluer. Materiel et methodes : A partir du PMSI au CHU de Rouen, nous avons calcule le delai entre la colectomie pour cancer du colon et la CT, chez des patients hospitalises entre 2009 et 2015. Par comparaison au dossier medical, nous avons identifie les vrais et les faux positifs, et nous avons calcule la valeur predictive positive (VPP) de notre methode. Resultats : Parmi les 102 patients selectionnes, la VPP etait de 91 % (IC 95 % : [86–97]). Conclusion : La qualite de l’indicateur meriterait d’etre confirmee dans d’autres etablissements. Applique aux bases PMSI nationales, il pourrait servir d’outil de pilotage au sein des agences regionales de sante et de l’Institut national du cancer.

Summary Introduction Totally implanted venous access (TIVA) improves the safety and welfare of patients treated with cancer chemotherapy (CCT). We aimed to evaluate patients’ perception of TIVA placement, TIVA use, and information on TIVA, and to assess the association between patients’ perception and their attitude regarding a potential TIVA re-implantation. Methods We conducted a single center cross-sectional survey in a university hospital in Northern France. Patients included were consecutive urologic or digestive cancer inpatients admitted for a CCT cycle via TIVA between April 9th and May 9th 2014. We analyzed patients’ satisfaction, experience, and attitude, especially when requiring potential TIVA re-implantation under local anesthesia (LA), using a standardized questionnaire and medical records. We analyzed risk factors for refusing potential TIVA re-implantation under LA using multivariate logistic regression. Results Eighty-one patients were interviewed (no refusals), including 57 with a TIVA device placed under LA in our university hospital. Among them, 52/57 (91%) reported satisfactory TIVA placement, but respectively 21/57 (37%) and 18/57 (32%) complained of painful or uncomfortable TIVA placement; 51/57 (89%) were satisfied with care provided during CCT cycles. Risk factors for refusing potential re-implantation under LA were: TIVA placement considered painful (P = 0.012) or uncomfortable (P = 0.038) and dissatisfaction with care provided during CCT cycles (P = 0.028). Discussion We show that despite good overall satisfaction regarding TIVA, some aspects were less positive and warrant improvement actions. It suggests that these actions could not only improve patients’ experience of TIVA use but could also facilitate continuation of treatment in the long term.

The performances of the extract obtained from Rosmarinus officinalis (RO) on the corrosion inhibition of XC48 steel is examined by mass loss method, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), potentiodynamic polarization (PDP), Fourier transform infrared (FTIR) spectroscopy and liquid chromatography–mass spectrometry (LC–MS). Investigations are performed in hydrochloric acid solution at 1 M concentration at different temperatures. Results show that the RO extract behaves as an inhibitor of mixed-type; in particular, the inhibition efficiency is augmented at greater concentration of the inhibitor and decreases with the rise of the temperature from 303 K to 333 K. The values of activation and free energy of inhibition reaction support the hypothesis of a mechanism of physisorption that is adequately described by the Langmuir equilibrium model. The retrieved outcomes are confirmed by SEM observations, which reveal that the adsorbed inhibitor molecules completely hinder the HCl attacks at the steel grain boundaries. Finally, quantum chemical calculations show that among the most abundant component detected in the RO extract, carnosic acid has a greater inhibitor potential with respect to carnosol.

International audience; no abstract

International audience