Automatic alignment of surgical videos using kinematic data

Over the past one hundred years, the classic teaching methodology of "see one, do one, teach one" has governed the surgical education systems worldwide. With the advent of Operation Room 2.0, recording video, kinematic and many other types of data during the surgery became an easy task, thus allowing artificial intelligence systems to be deployed and used in surgical and medical practice. Recently, surgical videos has been shown to provide a structure for peer coaching enabling novice trainees to learn from experienced surgeons by replaying those videos. However, the high inter-operator variability in surgical gesture duration and execution renders learning from comparing novice to expert surgical videos a very difficult task. In this paper, we propose a novel technique to align multiple videos based on the alignment of their corresponding kinematic multivariate time series data. By leveraging the Dynamic Time Warping measure, our algorithm synchronizes a set of videos in order to show the same gesture being performed at different speed. We believe that the proposed approach is a valuable addition to the existing learning tools for surgery.Comment: Accepted at AIME 201

Correction: Evolving Trends in the Management of Acute Appendicitis During COVID-19 Waves: The ACIE Appy II Study (World Journal of Surgery, (2022), 46, 9, (2021-2035), 10.1007/s00268-022-06649-z)

In the original online version of this article Oreste Claudio Buonomo’s family name was misspelled. The original article was corrected

Evolving Trends in the Management of Acute Appendicitis During COVID-19 Waves: The ACIE Appy II Study

Background: In 2020, ACIE Appy study showed that COVID-19 pandemic heavily affected the management of patients with acute appendicitis (AA) worldwide, with an increased rate of non-operative management (NOM) strategies and a trend toward open surgery due to concern of virus transmission by laparoscopy and controversial recommendations on this issue. The aim of this study was to survey again the same group of surgeons to assess if any difference in management attitudes of AA had occurred in the later stages of the outbreak. Methods: From August 15 to September 30, 2021, an online questionnaire was sent to all 709 participants of the ACIE Appy study. The questionnaire included questions on personal protective equipment (PPE), local policies and screening for SARS-CoV-2 infection, NOM, surgical approach and disease presentations in 2021. The results were compared with the results from the previous study. Results: A total of 476 answers were collected (response rate 67.1%). Screening policies were significatively improved with most patients screened regardless of symptoms (89.5% vs. 37.4%) with PCR and antigenic test as the preferred test (74.1% vs. 26.3%). More patients tested positive before surgery and commercial systems were the preferred ones to filter smoke plumes during laparoscopy. Laparoscopic appendicectomy was the first option in the treatment of AA, with a declined use of NOM. Conclusion: Management of AA has improved in the last waves of pandemic. Increased evidence regarding SARS-COV-2 infection along with a timely healthcare systems response has been translated into tailored attitudes and a better care for patients with AA worldwide

Paz en Colombia : perspectivas, desafíos, opciones

Este libro pretende ser un aporte para analizar las diversas dimensiones sociales, políticas, económicas, culturales, educativas y éticas de los retos que precedieron al acuerdo de paz y que se desplegarán a partir de ahora. Se publica a pocos días del plebiscito del 2 de octubre de 2016, en el que la sociedad colombiana tendrá en sus manos la posibilidad de refrendar este importantísimo acuerdo, abriendo y multiplicando los desafíos y oportunidades que nos permitieron llegar hasta aquí. La lectura de cada una de las contribuciones de este volumen permite no sólo entender que es urgente y necesario votar por el SÍ a los acuerdos de paz, sino también asumir la inmensa complejidad de una coyuntura que necesitará de muchísima imaginación, compromiso y participación democrática. ¡Viva la Paz! ¡Viva Colombia