Prevalence of potential drug-drug interactions in the intensive care unit of a Brazilian teaching hospital

Abstract Patients in intensive care unit are prescribed large numbers of drugs, highlighting the need to study potential Drug-Drug Interactions in this environment. The aim of this study was to delineate the prevalence and risk of potential drug-drug interactions between medications administered to patients in an ICU. This cross-sectional observational study was conducted during 12 months, in an adult ICU of a teaching hospital. Inclusion criteria were: prescriptions with 2 or more drugs of patients admitted to the ICU for > 24 hours and age of ≥18 years. Potential Drug-Drug Interactions were quantified and classified through MicromedexTM database. The 369 prescriptions included in this study had 205 different drugs, with an average of 13.04 ± 4.26 (mean ± standard deviation) drugs per prescription. Potential Drug-Drug Interactions were identified in 89% of these, with an average of 5.00 ± 5.06 interactions per prescription. Of the 405 different pairs of potentially interacting drugs identified, moderate and major interactions were present in 74% and 67% of prescriptions, respectively. The most prevalent interaction was between dipyrone and enoxaparin (35.8%), though its clinical occurrence was not observed in this study. The number of potential Drug-Drug Interactions showed significant positive correlations with the length of stay in the intensive care unit, and with the number of prescribed drugs. Acknowledging the high potential for Drug-Drug Interactions in the ICU represents an important step toward improving patient safety and best therapy results

ENGINEERING PROBLEMS IN THE DESIGN OF SUPERCONDUCTING SYSTEMS

Depuis 1977, Géneral Dynamics participe très activement dans les programmes les plus importants de la supraconductivité appliquée aux USA. Ce mémoire présente quelques unes des expériences les plus significatives et discute certains problèmes intéressants qui se sont posés au cours de ces programmes.General Dynamics has been deeply involved since 1977 in several major U.S. superconducting magnet programs. This paper discusses some of the more significant experiences and problems that occurred in these programs

Evaluation of antibiotics dispensing profile in Tubarão, Santa Catarina, Brazil

Antibiotics are drugs widely used in prophylaxis and treatment of a great number of diseases. However, their use must be carefully controlled as acquisition in pharmacies, often without medical prescription, is elevated. The role of pharmacists in these circumstances is to practice dispensation in a rational manner. Through a structured questionnaire with open and closed questions, this study investigated the profile of antibiotics dispensed in pharmacies of Tubarão, Santa Catarina, Brazil. From the responses, it was observed that 85.0% dispense this class of medicine without medical prescription, mainly for treatment of respiratory (62.8%) and urinary (12.0%) tract disorders. Moreover, pharmacists' guidance was largely focused on posology (66.6%) and drug interaction (12.6%), in addition to the interactions with contraceptives, alcohol and milk. The importance of avoiding antibiotics dispensation without medical prescription must be emphasized, as well as the benefits of educating the population to promote the rational use of medicines.<br>Antibióticos são fármacos amplamente utilizados na profilaxia e no tratamento de grande número de doenças. Entretanto, seu uso deve ser cuidadosamente controlado nas farmácias, uma vez que nestas a aquisição sem prescrição médica é elevada. O papel dos farmacêuticos nessas circunstâncias é o de praticar a dispensação de maneira racional. Por meio de questionário estruturado, com questões abertas e fechadas, investigou-se o perfil dos antibióticos dispensados em farmácias de Tubarão, Santa Catarina, Brasil. Pelas respostas, observou-se que 85% das dispensa essa classe de medicamentos sem prescrição médica, principalmente para o tratamento de problemas dos tratos respiratório (62,8%) e urinário (12,0%). Além disso, a orientação dos farmacêuticos se focou amplamente na posologia (66,6%)e nas interações com fármacos (12,6%), em adição às interações com anticoncepcionais, álcool e leite. A importância de se proibir a dispensação sem prescrição médica deve ser enfatizada, assim como os benefícios da educação da população para promover o uso racional de medicamentos