Misinformation of COVID-19 on the Internet: Infodemiology Study.

BACKGROUND: The internet has become an important source of health information for users worldwide. The novel coronavirus caused a pandemic search for information with broad dissemination of false or misleading health information. OBJECTIVE: The aim of this study was to evaluate the quality and readability of online information about the coronavirus disease (COVID-19), which was a trending topic on the internet, using validated instruments and relating the quality of information to its readability. METHODS: The search was based on the term "Wuhan Coronavirus" on the Google website (February 6, 2020). At the search time, the terms "COVID-19" or "SARS-CoV-2" (severe acute respiratory syndrome coronavirus 2) did not exist. Critical analysis was performed on the first 110 hits using the Health on the Net Foundation Code of Conduct (HONcode), the Journal of the American Medical Association (JAMA) benchmark, the DISCERN instrument, and Google ranking. RESULTS: The first 110 websites were critically analyzed, and only 1.8% (n=2) of the websites had the HONcode seal. The JAMA benchmark showed that 39.1% (n=43) of the websites did not have any of the categories required by this tool, and only 10.0% (11/110) of the websites had the four quality criteria required by JAMA. The DISCERN score showed that 70.0% (n=77) of the websites were evaluated as having a low score and none were rated as having a high score. CONCLUSIONS: Nonhealth personnel and the scientific community need to be aware about the quality of the information they read and produce, respectively. The Wuhan coronavirus health crisis misinformation was produced by the media, and the misinformation was obtained by users from the internet. The use of the internet has a risk to public health, and, in cases like this, the governments should be developing strategies to regulate health information on the internet without censuring the population. By February 6, 2020, no quality information was available on the internet about COVID-19.

A severe case of sclerosing mesenteritis.

Sclerosing mesenteritis is a rare benign disease presenting with chronic inflammation of the mesenteric adipose tissue and variable degrees of fibrosis. A 47-year-old black man presented to the emergency department with symptoms of small bowel obstruction, requiring surgical treatment. The laparotomy revealed a stenosis of the distal ileum with mesenteric thickening and an enterectomy was performed. The postoperative period was complicated by the maintenance of bowel obstruction. The patient underwent a second laparotomy, in which the fibrosing process of the mesentery was much aggravated, and an ileo-colic resection was needed. After knowledge of the histological diagnosis, the patient was started on immunomodulators with clinical improvement. At 26 months of follow-up, patient is asymptomatic under medical treatment. This is the first report, to our knowledge, of a patient with progressive fibrosis in such short period of time requiring surgical re-intervention for bowel obstruction, owing to sclerosing mesenteritis.

Pneumothorax after acupuncture.

Acupuncture is a well-known form of complementary medicine that is increasingly being used worldwide. Despite being rare, pneumothorax is the most common serious complication described in acupuncture. A 79-year-old woman was admitted to the emergency department with a pneumothorax. Two days before, she had undergone an acupuncture treatment for chronic back pain. She felt a sharp right shoulder pain as needles were inserted in the interscapular area. As the pain did not resolve, she consulted her general practitioner and had a chest radiography done, revealing a right-sided pneumothorax. At the hospital, a right chest tube was inserted with relief of the symptoms and lung expansion. The chest tube was removed on the second day of admission, and she was discharged on the third day. Both acupuncturists and clinicians need to be aware of the possibility of adverse events following acupuncture, especially in those who develop symptoms.

Abdominoplasty and thoraco-epigastric flaps for large anterior trunk defects after dermatofibrosarcoma protuberans wide resection: Two illustrative cases.

INTRODUCTION: Excision of large dermatofibrosarcoma protuberans in the anterior aspect of the trunk often results in large surgical defects that frequently dictate the need for microsurgical reconstruction. However, this option is not always available. PRESENTATION OF CASE: The authors describe two patients with very large anterior trunk dermatofibrosarcoma protuberans: one in the epigastric region and the other in the hypogastric region. In the patient with the hypogastric tumor, a classical abdominoplasty flap associated with umbilical transposition was used to cover the skin defect after muscle and fascial plication, and placement of a polypropylene mesh. In the patient with the epigastric tumor, a synthetic mesh was also placed, and the skin and subcutaneous defect was reconstructed with a reverse abdominoplasty flap and two thoraco-epigastric flaps. In both cases, complete closure was possible without immediate or late complications. DISCUSSION: The local options described in this paper present several potential advantages compared to microsurgical reconstruction, namely they are easier and faster to perform and teach; they provide a good skin color and texture match; they are not associated with distant donor site morbidity; follow-up is usually less cumbersome; the post-operative hospital stay tends to be shorter; they are less costly; they are less prone to complete failure. CONCLUSION: The authors believe that these two patients clearly show that local flaps, although frequently neglected, continue to be valid options for reconstructing large anterior trunk defects, even in the current era of microsurgery enthusiasm.

Creating graphene p-n junctions using self-assembled monolayers.

3-Aminopropyltriethoxysilane (APTES) and perfluorooctyltriethoxysilane (PFES) were used to modify the interface between transferred CVD graphene films and its supporting dielectric to create n-type and p-type graphene, respectively. A graphene p-n junction was obtained by patterning both modifiers on the same dielectric and verified through the creation of a field effect transistor (FET). Characteristic I-V curves indicate the presence of two separate Dirac points which confirms an energy separation of neutrality points within the complementary regions. This method minimizes doping-induced defects and results in thermally stable graphene p-n junctions for temperatures up to 200 °C.

[A case of successful treatment of concomitant ruptured intracranial aneurysm and visceral aneurysm]. / Um caso de sucesso no tratamento concomitante de rotura de aneurisma intracraniano e aneurisma visceral.

The association between intracranial and visceral aneurysms is very rare, with a bad prognosis. The rupture usually appears in the Emergency Room, and it implies an immediate treatment. We describe the case of a woman with rupture of an anterior communicant artery aneurysm and rupture of a pancreatic duodenal artery aneurysm. The actuation of all specialties allowed the direct surgical treatment of the visceral aneurysm, without the aggravation of the cerebral hemorrhage that the eventual Aorta Artery clamping could provoke. The maintenance of the hemodynamic stability was essential for the posterior treatment of the intracranial aneurysm.

Efectividad del sulfato de aluminio, sulfato ferroso y polielectrolito catiónico sobre el tratamiento de efluentes de plantas de pintura. Parte 2

Segunda parte del artículo iniciado en Ingeniería Sanitaria y Ambiental Nº74. Se presentan, como resultados, el efecto de la concentración del agente desestabilizante sobre la clarificación del efluente, y el efecto de la concentración de sólidos en este, el efecto del pH, la temperatura, la evolución del sistema en el tiempo y la evaluación de los mecanismos de desestaabilización

Efectividad del sulfato de aluminio, sulfato ferroso y polielectrolito catiónico sobre el tratamiento de efluentes de plantas de pintura. Parte 2

Segunda parte del artículo iniciado en Ingeniería Sanitaria y Ambiental Nº74. Se presentan, como resultados, el efecto de la concentración del agente desestabilizante sobre la clarificación del efluente, y el efecto de la concentración de sólidos en este, el efecto del pH, la temperatura, la evolución del sistema en el tiempo y la evaluación de los mecanismos de desestaabilización