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This work deals with the remediation of a soil that has been enriched with Quinclorac (QNC), one of the herbicides most used in Chile for weed control in rice fields. Quinclorac damages the microflora and macrofauna of soils and is toxic to some susceptible crops, which results in economic loses during crop rotation. Furthermore, Quinclorac a potential contaminant of water resources and soils, given its high mobility and persistence. This has created the need to lower its concentrations in soils intensively cultivated. In this study, an electro-kinetic soil washing system (EKSW) for mobilizing this pesticide in the soil was explored. The performance of this technology was compared by assessing the effect of direct (DP) and reverse (RP) polarity during 15 days under potentiostatic conditions and applying an electric field of 1 V cm-1 between electrodes. Among the main results, the highest removal of QNC was obtained through the EKSW-RP process, which also contributed to the prevention of acidity and alkaline fronts in the soil, compared to the EKSW-DP system. In both cases, the highest accumulation of QNC occurred in the cathodic well by mobilizing the non-ionized contaminant through the electroosmotic flow (EOF) from anode to cathode. After the treatment with EKSW, the wash water accumulated in the anodic and cathodic wells, which contained an important concentration of pesticide, was subjected to electro-oxidation (EO) by applying different current densities (j). The high generation of •OH on the surface of a boron-doped diamond electrode (BDD) allowed for the complete degradation and mineralization of QNC and its major intermediate compounds to CO2. The results of this study show that the application of both coupled stages in this type of remediation technologies would enable the removal of QNC from the soil without altering its chemical and physical properties, constituting an environmentally friendly process.

Preoperative anxiety can alter perioperative evolution, increasing the need for sedatives and analgesics. Information received during the pre-anesthesia consultation could reduce the level of anxiety. Carbohydrate Metabol modulator The objective of this study was to determine whether preoperative anxiety levels decrease after the pre-anesthesia consultation.

Observational, unicentric, prospective study. Sociodemographic and clinical data were recorded. Heart rate, blood pressure and anxiety levels were measured before and after the pre-anesthesia consultation using the abbreviated State-Trait Anxiety Inventory. Results were analyzed using Wilcoxon test and univariate logistic regression. P=.05 was considered significant.

Ninety patients were included, with a median age of 62 years; 58% were females, 79% had completed primary-secondary studies, 72% were selected for ambulatory surgery and 72% preferred regional anesthesia. The prevalence of anxiety was 35.6% (State-Trait Anxiety Inventory score 5; IQR 3-9); after the anesthesia consultation the score was reduced to 4 (IQR 2-6), P=.005. There was no significative decrease in hemodynamic values, and no significant relationship between anxiety and sociodemographic or clinical variables.

The pre-anesthesia consultation reduces anxiety levels in surgical patients. This emphasizes the importance of the pre-anesthesia consultation in identifying and managing anxiety.

The pre-anesthesia consultation reduces anxiety levels in surgical patients. This emphasizes the importance of the pre-anesthesia consultation in identifying and managing anxiety.Transesophageal echocardiography (TEE) is an essential tool in the intraoperative and postoperative period of cardiac surgery with recently wide diffusion. We aimed to know the current situation of TEE in the field of cardiovascular anesthesiology in Spain through a national survey that explores the availability of equipment, indication and use of this technique as well as the training and accreditation of professionals involved. The findings show that in Spain intraoperative TEE is an integral part of cardiovascular procedures today and in most centers it is performed by anesthesiologists highly involved in this type of surgery. Despite the absence of structured training in the curriculum of our specialty, anesthesiologists acquire the skills through specific short-term rotations and a high percentage of them have obtained official accreditation.

Respiratory muscle function in the postoperative period is a key to whether a patient develops Postoperative Respiratory Failure (PRF) or not. PRF occurs when the gas exchange does not meet metabolic needs. Ipsilateral paralysis of the hemidiaphragm after interscalenic brachial plexus block (ISB) causes an acute reduction of respiratory muscle function. This reduction does not cause PRF when the contralateral hemidiaphragm generates enough gas exchange to meet metabolic demands.

To study the evolution of hemidiaphragmatic muscle function during the perioperative period with diaphragmatic ultrasound (D-POCUS), and use it as an innovative tool to predict PRF, assessing the contralateral hemidiaphragm in the event of acute hemidiaphragm paralysis.

Patients considered high risk, scheduled for shoulder surgery with ISB are studied. Both hemidiaphragms were evaluated by ultrasound, before and after the procedure, measuring Thickening Fraction (TF) and Diaphragmatic Excursion (DE). PACU patients with PRF were p PRF when the contralateral hemidiaphragm function was preserved.The entire world has suffered the devastating action of the SARS-CoV-2/COVID-19 pandemic. This is the ideal moment to stop and ask ourselves what happened and how we acted; to reflect on what we have learned not only for similar situations but for all of our clinical practice. This work is an ethical reflection via the clinical experience of professionals dedicated to the care of critical patients in one of the countries most affected by the SARS-CoV-2/COVID-19 pandemic in the world. Some of the moral values and categories involved in decision-making in situations of limited resources are analysed, and the need for bioethics to be a part of daily practice is proposed, along with some strategies for doing so, thus facilitating decision-making by the health professional and fair and appropriate care for the patient in situations of particular vulnerability such as those experienced in this health and social crisis.