Artificial photosynthesis - concluding remarks.

This paper follows on from the Concluding Remarks presentation of the 3rd Faraday Discussion Meeting on Artificial Photosynthesis, Cambridge, UK, 25-27th March 2019. It aims to discuss the context for the research discussed at this meeting, starting with an overview of the motivation for research on artificial photosynthesis. It then goes onto analysing the composition and trends in the field of artificial photosynthesis, and its scale relative to other related research areas, primarily using the results of searches of publication databases. As such, we hope it provides helpful insights to researchers in the field.

Apendicectomía laparoscópica con una sola incisión umbilical (SILS): experiencia en una unidad de cirugía de urgencias / Appendectomy using single-incision laparoscopic surgery: experience in an emergency department

Introduccion: La apendicectomía laparoscópica es un procedimiento ampliamente utilizado en el tratamiento de la apendicitis aguda, que normalmente necesita tres o más trócares para poder llevarse a cabo. Presentamos nuestra experiencia inicial en la apendicectomía por laparoscopia con una sola incisión umbilical (SILS). Método: Estudio prospectivo realizado entre diciembre de 2008 y octubre 2009, en el que los pacientes que aceptaron participar. Fueron operados por cirujanos especialmente dedicados a la patología quirúrgica urgente. El ombligo fue el único punto de entrada en todos los casos y se utilizó la misma técnica quirúrgica en todos ellos. Resultados: Realizamos 52 apendicectomías mediante SILS. La intervención fue realizada con éxito en todos los pacientes: el tiempo operatorio medio fue de 41 min, no se produjo conversión a cirugía abierta ni se necesitó la colocación de otros trócares adicionales y no hubo complicaciones intra ni post operatorias. La estancia media hospitalaria fue de 2,7 días. Conclusión: La apendicectomía en pacientes adultos mediante SILS es una técnica segura, sencilla y fácilmente reproducible (AU)

Background and objective: Laparoscopic appendectomy for acute appendicitis is a widely used procedure. Three ormore trocars are normally required. We present our early experience performing appendectomy by means of singleincision laparoscopic surgery (SILS) for acute appendicitis. Methods: Prospective study from December 2008 to October 2009 in patients who gave their informed consent. Specialists in emergency surgery were responsible for carrying out the procedures. The navel was the point of entry in allcases. Results: We performed 52 emergency laparoscopic appendectomies using a single umbilical incision. The intervention was successful in all patients. The average operating time was 41 minutes. There were no conversions to open surgery or requirement for additional trocars. No complications were observed during or after the procedures. The mean hospital stay was 2.7 days. Conclusion: Adult appendectomy using SILS is a safe procedure that is reproducible and easy to perform (AU)

Clinical trial on the cost-effectiveness of T-tube use in an established deceased donor liver transplantation program.

The aim of our study was to assess the advantages and disadvantages of T-tube use in liver transplantation, with also paying attention to the economic costs derived from its use. Patients were prospectively randomized to T tube or no T tube. One hundred and seven patients, 53 with T tube and 54 without T tube, were analyzed. Minimum follow-up was three months. Nine patients (8.4%) had bile leak: six in the T-tube group (11.3%) and three in the group without T tube (5.5%), p = ns. Four patients (3.5%) had anastomotic biliary stenosis: one in the T-tube group (1.8%) and three in the group without T tube, p = ns. Twenty of the 53 patients (37.7%) with T tube had T-tube-related complication. The number of diagnostic and therapeutic resources were higher in the T-tube group compared with non-T tube (81 and 17 vs. 18 and 10, respectively, p <0.05). The costs of therapeutic procedures required for the treatment of complications were 28 232 euro in the T-tube group vs. 16 088 euro in the no T-tube group, p <0.05. In conclusion, the systematic use of the T tube in biliary reconstruction in liver transplantation cannot be justified.

Natural history of parenteral drug addicts treated in a general hospital.

The progress of 298 heroin addicts treated for different reasons in a general hospital from 1984 to 1987 is followed, in order to know the remission degree of parenteral drug use and mortality rates in heroin abusers, after being treated for organic diseases or undergoing quick detoxification treatment. After an average of 25 months since their first visit or admission, information was obtained in 90% of the cases, and of these, it was confirmed that 4% (11/266) had died and that 6% (15/255) were in prison. Of the remainder, reliable information was obtained from 66% (158/240), of whom 40% were no longer endovenous drug users, while 54% were still addicted to parenteral drugs. The results showed a higher percentage of remission in patients that had been admitted for organic diseases (39/65; 60%) than in those that had been treated for detoxification (30/93; 35%) (p less than 0.05).