Article type: Review

Towards an integrated medical system for radiological medical imaging investigations

The continuously increasing number of medical investigations using radiological methods imposes the strong necessity of informing patients about benefits and risks regarding radiation absorbed doses. Tracking the radiation doses absorbed by patients must be a future challenge of any medical system. The effective doses received by patients in many types of medical investigations must be calculated, transformed, recorded and cumulated. Doctors and patients must be very responsible in prescribing or demanding new radiological medical investigations. Radiological international legislation, guidelines, programmers and practice supervised by standards, commissions on radiology protection must include new specific measures for patients’ cumulated doses. A pilot Romanian project had tried to accomplish some of these tasks. INTRODUCTION Radiation is commonly associated with nuclear accidents or modern irradiative artificial sources such as: mobile phones, great antennas, satellites, food irradiation, and radioactive building materials. Generally, radiation is associated with all kind of human activities. As a huge surprise, in fact, radiation is quite a natural phenomenon in our lives. There are many radioactive substances in air, water and soil that are called natural background radiation. During a long airplane flight one can also receive an important radiation dose. Typically doses from natural sources are measured in mSv. The Sievert (Sv) is the International System of Units (SI) derived unit for radiation dose. There are many other different units for absorbed radiation and transformations can be made in order to compare them. A recent United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) publication [1] estimates worldwide distribution of radiation exposure: • 13% from cosmic sources • 16% from soil • 9% from food • 20% from medical investigations • 42% from radon sources Radon-222 is a radionuclide in the form of a gas that normally emanates from the soil. Radon is a colorless, 1 Polytechnic University, Bucharest 2 Carol Davila Central University Emergency Military Hospital, Bucharest 3 S.C. CERTSIGN S.A. Bucharest 5

The influence of homocysteine on osteoporosis

Osteoporosis is a major health problem, and the economic costs are expected to rise due to an increase in life expectancy throughout the world. Its major consequence is fractures, and especially hip fractures are associated with institutionalization and increased mortality. Homocysteine is an amino acid intermediate formed during the metabolism of methionine. Homocysteinuria is a rare autosomal recessive biochemical abnormality which causes elevated plasma concentrations of homocysteine and severe occlusive vascular disease. In patients with homocysteinuria, there is an increased prevalence of skeletal deformities, including osteoporosis, which is a primary risk factor for hip fracture. The high prevalence of osteoporosis among patients with homocysteinuria suggests that high levels of plasmatic homocysteine may also increase the risk of fractures. Nutritional factors such as vitamins B12, B6, and folate are cofactors in homocysteine metabolism, and vitamin intakes may inversely affect plasma homocysteine levels.

Intellectual mobility in medical higher education system

Intellectual mobility brings change, there is the primary factor in the way of progress and optimal premise of human being development from theoretic and practice regards. Medical Higher Education, worldwide, is generally similar in structure and consistency, but different in typology of presentation, teaching, learning and assessment. In fact, general medicine, as a subject refers to the same biological body, but presented differently depending on culture, space and under various methods of teaching and learning. The idiom of intellectual mobility is not new, but according to globalization, which we live at the present times, brought the mobility in the main plan of Europeanization, a new plan, with continues sustainable development and maybe of success. By institutional mobility, both for students and for academic staff, an exchange means a period of one academic year or a semester, for students and, for two days to several months for academic staff, into a foreign university. These stages of study, practice, and teaching take place most frequently within the Erasmus + framework, have been of 30 years in Europe and 20 years in Romania. Also, there are other programs that can perform intellectual mobility, but the most well-known is Erasmus program, where European Commission has allocated the biggest legal and financial budget framework. Overall activity program features has a variety of tools to be deployed and an inter-institutional framework with qualified staff to manage it.

The concept of operationalization of an integrated platform for scientific research and expertise of war and bioterrorism

The international situation requires a strengthening of the national security measures, including in the field of CBRN and public health. The upgraded microbiology laboratories from DM/ MND must be operated at full capacity for the operationalization of an integrated Platform for the research and expertise of biological war and bioterrorism agents. This is necessary for reasons of national security, for CBRN defense and for public health, in the context of biological agents of 3 and 4 risk groups’ epidemics. The existing upgraded objectives should be operationalized in order to meet the established scope: scientific research and expertise of biological agents and biological weapons, a laboratory for in vitro analysis and a bio-base for in vivo analysis. The highly secure lab allows working with any high-risk agents: biological, genetic, chemical, radiological, etc., being provided with a special room for the insertion/removal of equipment and their decontamination. Following an increase in the capability requirements concerning laboratories, we have provided in the design concept new technical parameters of the platform and the integration of new compartments with related activities of toxicology, pathology, neuro-psycho-pharmacology, bio-pharmacy, micro- pharmaceutical, specific testing activities, etc. Creating the integrated platform and its operationalization is necessary in order to meet the requirement of the national security strategy as a collective CBRN defense/protection facility and military-medical scientific research for CBRN medical protection.

Extra-pulmonary tuberculosis in immunocompetent patients: Case series and mini review of the literature

Introduction: Tuberculosis (TB) is still one of the most frequent infectious diseases, causing 2 million deaths a year worldwide. The prevalence of TB has increased in both immunocompetent and immunocompromised and virtually, it can affect any organ. Up to 25% of tuberculosis cases present extra-pulmonary involvement. The diagnosis of extra-pulmonary TB (EPTB) is difficult, often requiring biopsy. Material and methods: We present two cases of EPTB in immunocompetent young women. The first case is about a 15-years old female who presented with persistent high fever, ascites and an increased CA-125 serum level. Biochemical analysis of ascites fluid revealed a high value of adenosine deaminase (ADA), negative Ziehl-Neelsen stain and undetectable Mycobacterium tuberculosis at PCR assay. The peritoneal biopsy confirmed the diagnosis of peritoneal TB. The second case, a 29-years old female with a seven-month history of cervical lymph nodes swelling, with drainage and excision biopsy performed, misdiagnosed as cats-scratch disease based on the histological description as granulomatous lymphadenitis, which turned out to be tuberculous lymphadenitis at the second histopathological opinion. In conclusion, these cases highlight the need for tuberculosis consideration in the differential diagnosis of extra-pulmonary involvement, even in immunocompetent individuals, in order to decrease the misdiagnoses and complications rates.

A new global threat for the public safety: Zika virus

Zika virus, the etiological agent of Zika fever, is transmitted by mosquitoes and has been affecting the South American continent starting with 2015. It was reported in several European countries, carried by the people who returned from Latin America, as reported by the health authorities in those countries. Today, according to the World Health Organization (WHO), the virus suspected to cause serious birth defects in the fetus has also been confirmed in 21 of the 55 countries of South America, but also in other states from Europe and North America. Zika virus is a single stranded positive sense RNA virus belonging to Flavivirus genus (family Flaviviridae) and was first identified in 1947 in Uganda rainforest Zika. The increased number of cases of microcephaly, in children from northern Brazil, suggested a connection with Zika virus, but it has not yet been proven. Also, the virus can be transmitted sexually and through blood or blood products. Diagnosis of the infection is made using Polymerase Chain Reaction (PCR). So far, there is no specific antiviral treatment or vaccine against the infection with Zika virus. The best form of prevention is to avoid mosquito bites. WHO has estimated that the spread of Zika virus, transmitted through mosquito bite, is “a global public health emergency”. The priority is to protect pregnant women and to control the mosquitoes.

Management of Helicobacter pylori infection – new insights

Introduction: Our objective is to review current international guidelines for Helicobacter Pylori treatment and our department`s experience in this field. Materials and methods: Helicobacter pylori is a Gram-negative, microaerophilic bacterium that can be found mainly in the gastric mucus or on the inner surface of the gastric epithelium, infecting up to 50% of the population. Colonization with this bacterium is not a disease in itself, but can cause chronic gastritis, peptic ulcer, gastric cancer and MALToma. Because of this, infection with H. pylori continues to be a major healthcare burden, especially in less-developed countries. A multitude of non-invasive tests are available for the diagnosis of Helicobacter pylori infection (blood antibody, stool antigen or urea breath test), but the most reliable method of diagnosis is histological examination from two sites after endoscopic biopsy, combined with either a microbial culture or rapid urease test. Treatment of Helicobacter pylori infection is becoming a challenge, as eradication following standard triple therapy is decreasing worldwide due to increased bacterial resistance against antibiotics, which has led to the development of newer therapies such as the sequential treatment in which a PPI and amoxicillin is given for 5 days followed by a PPI, clarithromycin and metronidazole for another 5 days, or the quadruple therapy based on a PPI, bismuth subcitrate, metronidazole and tetracycline for 10 days. Results and conclusion: H. pylori infection remains one of the most challenging infectious diseases, causing high morbidity and mortality, mainly because none of the actual antibiotic therapies can provide successful eradication.

The importance of life quality questionnaire in patients with prostate cancer, pre- and post-radical prostatectomy

This study analyzes the satisfaction of the patients with radical prostatectomy according to the signs and symptoms included in the EORTC QLQ – C30 and EORTC QLQ – PR25 questionnaires, including their relation with the health state that influences the pre and postoperative life quality. Fifty patients with prostate cancer in a localized stage were studied and analyzed in a prospective manner and for a period of 12 months, before and 6 months after the radical prostatectomy. In choosing the patients, the common denominator was the use of the same postoperative plan and the lack of postoperative complications, as well as the lack of chronic diseases. Erectile dysfunction, urine incontinence were quite frequent after radical prostatectomy, while the urinary obstruction and the weak urinary stream were less frequent. In this regard, people noticed a significant decrease of life quality. Although the study addressed a small group of patients, the results are similar to those belonging to other clinical studies. Even if the aspect of life quality is more rarely taken into account, the questionnaires regarding the life quality are specific, useful and quite cheap in evaluating different therapies.