Effectiveness and safety of ultra-low-dose spinal anesthesia versus perineal blocks in hemorroidectomy and anal fistula surgery: a randomized controlled trial

Abstract Background: Ultra-low-dose Spinal Anesthesia (SA) is the practice of employing minimal doses of intrathecal agents so that only the roots that supply a specific area are anesthetized. The aim of this study was to compare the effectiveness and safety of ultra-low-dose spinal anesthesia with that of Perineal Blocks (PB). Methods: A two-arm, parallel, double-blind randomized controlled trial comparing two anesthetic techniques (SA and PB) for hemorrhoidectomy and anal fistula surgery was performed. The primary outcomes were postoperative pain, complementation and/or conversion of anesthesia, and hemodynamic changes. Results: Fifty-nine patients were included in the final analysis. The mean pain values were similar in the first 48 h in both groups (p > 0.05). The individuals allocated to the SA group did not need anesthetic complementation; however, those in the PB group required it considerably (SA group, 0% vs. PB group, 25%; p = 0.005). Hemodynamic changes were more pronounced after PB: during all surgical times, the PB group showed lower MAP values and higher HR values (p < 0.05). Postoperative urinary retention rates were similar between both groups (SA group 0% vs. PB group 3.1%, p = 0.354). Conclusion: SA and PB are similarly effective in pain control during the first 48 h after hemorrhoidec-tomy and anal fistula surgery. Although surgical time was shorter among patients in the PB group, the SA technique may be preferable as it avoids the need for additional anesthesia. Furthermore, the group that received perineal blocks was under sedation with a considerable dose of propofol.

Impacto da pandemia da COVID-19 sobre transplantes de córnea / Impact of COVID-19 pandemic on corneal transplantations

RESUMO Objetivo: Tendo em vista que o sistema visual representa uma via de contaminação para o novo Corona vírus, a The Global Alliance of Eye Bank Association (GAEBA) divulgou um guideline preconizando a prevenção de transmissão do vírus entre o doadores de tecido ocular e o pacientes receptores, o que resultou em uma diminuição no número de ceratoplastias e aumento de filas de espera para transplantes de córnea (TC) em todo o mundo. Nesse sentido, o presente trabalho tem por objetivo analisar a situação do transplante de córnea (TC) no estado de Alagoas durante o primeiro ano de pandemia da COVID-19. Métodos: Trata-se de um estudo analítico, transversal, observacional utilizando dados provenientes de 3 fontes diferentes: Banco de Tecido Ocular Humano de Alagoas (BTO-AL), Registro Brasileiro de Transplantes (RBT) e Agência Nacional de Vigilância Sanitária (ANVISA). Resultados: Durante os últimos seis anos, foram realizados 284 TCs em Alagoas, segundo dados do Banco de Transplante de Olhos do estado (BTO), já segundo a Registro Brasileiro de Transplantes (RBT) foram realizados 451 TCs. A porcentagem de córneas não oriundas do BTO de Alagoas se mostrou crescente até 2019, porém decresceu em 2020, e no primeiro ano de pandemia , apenas 11,66% da necessidade anual estimada foi atendida, sendo o período com menor número de TCs realizados entre os seis anos analisados na pesquisa. Conclusão: O estudo demonstra o declínio na doação e realização de transplantes de córnea durante o primeiro ano da pandemia da COVID-19 em Alagoas.

ABSTRACT Objective: Considering the visual system is one source of contamination for the new coronavirus, The Global Alliance of Eye Bank Association (GAEBA) released a guideline recommending prevention of virus transmission between eye tissue donors and recipients, which resulted in a reduction of keratoplasties and increase in the waiting lists for corneal transplants worldwide. Hence, this work aims to analyze the situation of corneal transplantation in the state of Alagoas, during the first year of COVID-19 pandemic. Methods: This is an analytical, cross-sectional, observational study using data from 3 different sources: Human Eye Tissue Bank of Alagoas (BTO-AL), Brazilian Transplant Registry (RBT) and National Health Surveillance Agency (ANVISA). Results: During the past six years, 284 corneal transplants were performed in Alagoas, according to data from the Eye Transplant Bank (BTO) of the state, whereas according to the Brazilian Transplant Registry (RBT) 451 corneal transplants were performed. The percentage of corneas not coming from the BTO of Alagoas increased until 2019 but dropped in 2020. In the first year of the pandemic, only 11.66% of estimated annual need was met, and this period had the lowest number of corneal transplants performed out of the six years analyzed in the research. Conclusion: The study demonstrated the decline in donation and performance of corneal transplants during the first year of the COVID-19 pandemic in Alagoas.

Efficacy and landscape of Covid-19 vaccines: a review article.

INTRODUCTION: The rapid advance of Coronavirus disease 2019 (Covid-19) has led to the incessant search for therapeutic and prophylactic measures to fight the pandemic. Because it is a viral infection, the safest long-term prophylactic form, in addition to social distance and hygiene, is the vaccine. OBJECTIVE: Thus, this study aimed at conducting a review of the efficacy and landscape of Covid-19 vaccines. METHODS: The following electronic databases were used MEDLINE via PubMed, SCIELO, LILACS, NEJM, and Clinical Trials. Our study includes the 7 vaccines (phase 3) that reported an efficacy rate for Covid-19, including characteristics inherent to each one of them. RESULTS: Preliminary studies have shown that, although an efficacy ≥70% is necessary to eliminate the infection, a prophylactic vaccine with efficacy <70% will still have an important impact and can contribute to the elimination of the virus, provided that appropriate measures of social distancing remain. CONCLUSIONS: The effectiveness of the vaccines obtained in this study varied between 50.38 and 95%, data that may represent a reduction in serious cases, hospitalizations, sequels, and deaths caused by Covid-19, respecting the panorama presented in this article.

Association between vitamin D and cardioprotection in adult patients.

OBJECTIVE: To conduct a review of articles which have evaluated the relationship between vitamin D and cardioprotection in adult. METHODS: A literature search was performed in the Pubmed and Scielo databases. The results were extracted from primary and secondary sources and will be presented in the form of a bibliographic review. RESULTS: Twenty-three articles were identified from the electronic search that reported on physiological mechanisms relating the vitamin D axis and the cardiovascular system through receptors. Of the ten studies that evaluated the therapeutic effect of vitamin D in cardiovascular diseases, none reported significant results. CONCLUSION: The articles assessed in this review did not demonstrate a cardioprotective effect of vitamin D, despite the epidemiological correlation of vitamin D deficiency with a higher prevalence of cardiovascular diseases.

Discriminant indexes to simplify the differential diagnosis between iron deficiency anemia and thalassemia minor in individuals with microcytic anemia.

INTRODUCTION: Microcytic anemias are very common in clinical practice, with iron deficiency anemia (IDA) and thalassemia minor (TT) being the most prevalent. Diagnostic confirmation of these clinical entities requires tests involving iron metabolism profile, hemoglobin electrophoresis, and molecular analysis. In this context, several discriminant indices have been proposed to simplify the differential diagnosis between IDA and TM. OBJECTIVE: The aim of this paper was to demonstrate the clinical relevance of the use of discriminant indices in individuals with microcytic anemia to simplify the differential diagnosis between iron deficiency anemia and minor thalassemia. METHODS: A bibliographic and cross-sectional search was performed in the PubMed, SciELO and LILACS databases, using the following descriptors: iron deficiency anemia, thalassemia minor, and differential diagnosis. RESULTS: More than 40 mathematical indices based on erythrocyte parameters have been proposed in the hematological literature in individuals with microcytosis. Green & King indexes (IGK), Ehsani index, and erythrocyte count (RBC) had excellent performances, especially when their efficacy was observed in adults and children. CONCLUSIONS: Confirmatory tests for differential diagnosis between IDA and TM require time-consuming and costly methods. Despite the excellent performances of IGK, Ehsani index, and RBC, none of them presented sufficient sensitivity and specificity to establish a diagnosis. However, they can provide a powerful additional tool for diagnostic simplification between IDA and TM.

Association between vitamin D and cardioprotection in adult patients

SUMMARY OBJECTIVE: To conduct a review of articles which have evaluated the relationship between vitamin D and cardioprotection in adult. METHODS: A literature search was performed in the Pubmed and Scielo databases. The results were extracted from primary and secondary sources and will be presented in the form of a bibliographic review. RESULTS: Twenty-three articles were identified from the electronic search that reported on physiological mechanisms relating the vitamin D axis and the cardiovascular system through receptors. Of the ten studies that evaluated the therapeutic effect of vitamin D in cardiovascular diseases, none reported significant results. CONCLUSION: The articles assessed in this review did not demonstrate a cardioprotective effect of vitamin D, despite the epidemiological correlation of vitamin D deficiency with a higher prevalence of cardiovascular diseases.

The effectiveness of percutaneous injections of ozonotherapy in low back pain.

INTRODUCTION: Lumbar pain is one of the main reasons for medical consultation, causing the disruption of daily routines due to its disabling nature, thus resulting in social and personal damage. Among the complementary treatments, ozonotherapy offers analgesia to most patients, with reports of complications. However, great questions about its clinical effectiveness have not been answered yet, and there have been reports of serious complications. OBJECTIVE: To describe the use of ozonotherapy in the treatment of lumbar pain, focusing on its favorable and unfavorable effects, and its analog profile. METHODS: A cross-sectional bibliographic research was performed with scientific articles obtained from the Pubmed, LILACS and Scopus database, using the following descriptors: "Ozone", "Therapy", "Lumbar pain", "complication", "Disk herniation", "Guideline", "Protocol", "Standards", "Criteria". RESULTS: The researched literature corroborates that, in clinical practice, there is safety in the use of oxygen-ozone therapy through percutaneous injections for the treatment of lumbar pain, especially when compared to surgeries and use of medicines, provided that strict criteria are followed. CONCLUSION: The procedure is effective and has a favorable analgesic profile. However, it is necessary to produce a medical guideline that will help in its strict and systematic control.

Discriminant indexes to simplify the differential diagnosis between iron deficiency anemia and thalassemia minor in individuals with microcytic anemia

SUMMARY INTRODUCTION: Microcytic anemias are very common in clinical practice, with iron deficiency anemia (IDA) and thalassemia minor (TT) being the most prevalent. Diagnostic confirmation of these clinical entities requires tests involving iron metabolism profile, hemoglobin electrophoresis, and molecular analysis. In this context, several discriminant indices have been proposed to simplify the differential diagnosis between IDA and TM. OBJECTIVE: The aim of this paper was to demonstrate the clinical relevance of the use of discriminant indices in individuals with microcytic anemia to simplify the differential diagnosis between iron deficiency anemia and minor thalassemia. METHODS: A bibliographic and cross-sectional search was performed in the PubMed, SciELO and LILACS databases, using the following descriptors: iron deficiency anemia, thalassemia minor, and differential diagnosis. RESULTS: More than 40 mathematical indices based on erythrocyte parameters have been proposed in the hematological literature in individuals with microcytosis. Green & King indexes (IGK), Ehsani index, and erythrocyte count (RBC) had excellent performances, especially when their efficacy was observed in adults and children. CONCLUSIONS: Confirmatory tests for differential diagnosis between IDA and TM require time-consuming and costly methods. Despite the excellent performances of IGK, Ehsani index, and RBC, none of them presented sufficient sensitivity and specificity to establish a diagnosis. However, they can provide a powerful additional tool for diagnostic simplification between IDA and TM.

RESUMO INTRODUÇÃO: Anemias microcíticas são muito comuns na prática clínica, sendo a anemia ferropriva (AF) e a talassemia menor (TM) as mais prevalentes. A confirmação diagnóstica dessas entidades clínicas requer testes que envolvem o perfil do metabolismo do ferro, eletroforese de hemoglobinas e análises moleculares. Nesse contexto, vários índices discriminantes têm sido propostos para simplificação do diagnóstico diferencial entre AF e TM. OBJETIVO: O objetivo deste artigo foi demonstrar a relevância clínica da utilização de índices discriminantes em indivíduos com anemia microcítica, para simplificação do diagnóstico diferencial entre anemia ferropriva e talassemia menor. MÉTODOS: Foi realizada uma pesquisa bibliográfica e transversal nas bases de dados PubMed, SciELO e Lilacs, utilizando-se os seguintes descritores: anemia ferropriva, talassemia menor e diagnóstico diferencial. RESULTADOS: Mais de 40 índices matemáticos baseados em parâmetros eritrocitários foram propostos na literatura hematológica em indivíduos com microcitose. Os índices de Green & King (IGK), o índice de Ehsani e a contagem de eritrócitos (RBC) obtiveram excelentes desempenhos, especialmente quando sua eficácia foi observada em adultos e crianças. CONCLUSÕES: Testes confirmatórios para o diagnóstico diferencial entre AF e TM demandam métodos que consomem bastante tempo e alto custo. Apesar dos excelentes desempenhos do IGK, do índice de Ehsani e do RBC, nenhum deles possui sensibilidade e especificidade suficientes para firmar diagnóstico. No entanto, podem fornecer uma poderosa ferramenta adicional para simplificação diagnóstica entre AF e TM.

The effectiveness of percutaneous injections of ozonotherapy in low back pain

SUMMARY INTRODUCTION Lumbar pain is one of the main reasons for medical consultation, causing the disruption of daily routines due to its disabling nature, thus resulting in social and personal damage. Among the complementary treatments, ozonotherapy offers analgesia to most patients, with reports of complications. However, great questions about its clinical effectiveness have not been answered yet, and there have been reports of serious complications. OBJECTIVE To describe the use of ozonotherapy in the treatment of lumbar pain, focusing on its favorable and unfavorable effects, and its analog profile. METHODS A cross-sectional bibliographic research was performed with scientific articles obtained from the Pubmed, LILACS and Scopus database, using the following descriptors: "Ozone", "Therapy", "Lumbar pain", "complication", "Disk herniation", "Guideline", "Protocol", "Standards", "Criteria". RESULTS The researched literature corroborates that, in clinical practice, there is safety in the use of oxygen-ozone therapy through percutaneous injections for the treatment of lumbar pain, especially when compared to surgeries and use of medicines, provided that strict criteria are followed. CONCLUSION The procedure is effective and has a favorable analgesic profile. However, it is necessary to produce a medical guideline that will help in its strict and systematic control.

RESUMO INTRODUÇÃO Dor lombar é um dos principais motivos de consultas médicas, provocando afastamento das rotinas diárias, por ser incapacitante, resultando em danos sociais e pessoais. Dentre os tratamentos complementares, a ozonioterapia oferece analgesia para a maioria dos pacientes e com mínimos relatos de complicações. Entretanto, grandes questionamentos sobre sua efetividade clínica ainda não foram respondidos, além de haver relatos de complicações graves. OBJETIVO Descrever o uso da ozonioterapia no tratamento da dor lombar, enfocando seus efeitos favoráveis e desfavoráveis, e seu perfil analgésico. MÉTODOS Foi realizada uma pesquisa bibliográfica transversal com artigos científicos obtidos das bases de dados PubMed, Lilacs e Scopus, utilizando os descritores: "Ozônio", "Terapia", "Dor lombar", "Complicação", "Hérnia de Disco","Diretriz", "Protocolo", "Padrões", "Critérios". RESULTADOS A literatura pesquisada corrobora que, na prática clínica, há segurança na utilização da terapia com a mistura oxigênio-ozônio por meio de injeções percutâneas para o tratamento de dor lombar, principalmente quando comparada às cirurgias e ao uso de medicamentos, desde que sejam seguidos critérios rígidos. CONCLUSÃO O procedimento é efetivo e tem perfil analgésico favorável. No entanto, é necessária a confecção de uma diretriz médica que auxiliará no controle rígido e sistemático do mesmo.

Use of remdesivir for patients with Covid-19: a review article.

The etiological agent of COVID-19, which causes severe respiratory diseases such as pneumonia and pulmonary insufficiency, has been confirmed as a new coronavirus, now known as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). There is currently no authorized medication for the treatment of COVID-19. No vaccines have been authorized. Thus, this study aimed at conducting a review of the use of Remdesivir in patients with COVID-19. The following electronic databases were used MEDLINE, SCIELO, LILACS, and PUBMED. On May 1, Remdesivir received emergency use authorization from the Food and Drug Administration. Remdesivir is currently the most promising molecule in the treatment of COVID-19, taking into account its broad antiviral spectrum (considering the genetic sequences of the virus, it is expected to maintain activity against SARS-CoV-2). There is in vitro and in vivo information available for coronaviruses, as well as an extensive clinical safety database (from a clinical trial of the Ebola virus and in the context of the Monitored Emergency Use of Unregistered and Investigational Interventions - MEURI). Further studies are relevant as available data on the efficacy and safety of Remdesivir against SARS-nCoV-2 are limited.

Epidemiology, diagnosis, treatment, and future perspectives concerning SARS-COV-2: a review article.

The present study aimed to review the epidemiology, clinical manifestation, laboratory diagnosis, treatment, and future perspectives related to COVID-19 infections. The following electronic databases were used searched: MEDLINE, SCIELO, and LILACS. It became clear that COVID-19 infections occur through exposure to the virus, and both the immunosuppressed and healthy population appear susceptible. The clinical course of COVID-19 is still not clear, although the SARS-CoV-2 infection seems to develop with mild, influenza-like symptoms in the vast majority of subjects, i.e., 10%-15% of COVID-19 patients. Since rRT-PCR tests serve as the gold standard method to confirm a SARS-CoV-2 infection, false-negative results could hinder the prevention and control of the epidemic, particularly considering the test plays a key role in the decision for continued isolated medical observation or discharge. Our findings also indicate that a radical increase in the identification and isolation of currently undocumented infections would be needed to fully control SARS-CoV2.

Use of remdesivir for patients with Covid-19: a review article

SUMMARY The etiological agent of COVID-19, which causes severe respiratory diseases such as pneumonia and pulmonary insufficiency, has been confirmed as a new coronavirus, now known as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). There is currently no authorized medication for the treatment of COVID-19. No vaccines have been authorized. Thus, this study aimed at conducting a review of the use of Remdesivir in patients with COVID-19. The following electronic databases were used MEDLINE, SCIELO, LILACS, and PUBMED. On May 1, Remdesivir received emergency use authorization from the Food and Drug Administration. Remdesivir is currently the most promising molecule in the treatment of COVID-19, taking into account its broad antiviral spectrum (considering the genetic sequences of the virus, it is expected to maintain activity against SARS-CoV-2). There is in vitro and in vivo information available for coronaviruses, as well as an extensive clinical safety database (from a clinical trial of the Ebola virus and in the context of the Monitored Emergency Use of Unregistered and Investigational Interventions - MEURI). Further studies are relevant as available data on the efficacy and safety of Remdesivir against SARS-nCoV-2 are limited.

RESUMO O agente etiológico da COVID-19, que causa doenças respiratórias graves, como pneumonia e insuficiência pulmonar, foi confirmado como um novo coronavírus, agora conhecido como coronavirus de síndrome respiratória aguda grave 2 (SARS-CoV-2). Não existem atualmente medicamentos autorizados para o tratamento de COVID-19, nem estão também autorizadas quaisquer vacinas. Assim, o estudo teve como objetivo realizar uma revisão sobre a utilização de Remdesivir em pacientes com COVID-19. As seguintes bases de dados eletrônicas foram utilizadas MEDLINE, SCIELO, LILACS e PUBMED. Em primeiro de maio, o Redemsivir recebeu autorização de uso de emergência da Food and Drug Administration. Remdesivir é presentemente a molécula promissora no tratamento da COVID-19 tendo em conta o seu largo espetro antiviral (considerando as sequências genéticas do vírus, é expectável que mantenha atividade contra o SARS-CoV-2). A informação in vitro e in vivo está disponível para os coronavírus, assim como a extensiva base de dados de segurança clínica (proveniente de ensaio clínico do vírus Ebola e no contexto do Monitored Emergency Use of Unregistered and Investigational Interventions - MEURI). A realização de novos estudos torna-se relevantes uma vez que os dados disponíveis são limitados sobre eficácia e segurança do Remdesivir contra SARS-nCoV-2.

[Effectiveness of magnesium sulfate compared to rocuronium for rapid sequence tracheal intubation in adults: clinical randomized trial]. / Efetividade do sulfato de magnésio comparado ao rocurônio para intubação em sequência rápida em adultos: ensaio clínico randomizado.

INTRODUCTION AND OBJECTIVES: Magnesium sulfate has been used in anesthesia because it has relevant clinical features such as: analgesia, autonomic response control and muscle relaxation. Using the agent to establish adequate conditions for tracheal intubation remains controversial. The aim of the study was to compare the effectiveness of magnesium sulfate and rocuronium for rapid sequence tracheal intubation in adults. METHODS: Double blind, randomized, unicentric, prospective study assessed 68 patients, ASA 1 or 2, over 18 years, scheduled for appendectomy under general anesthesia. Patients were divided into two groups. GM patients received 50 mg.kg-1magnesium sulfate and GR patients, 1 mg.kg-1 rocuronium immediately before anesthesia induction. Arterial Blood Pressure (BP) and Heart Rate (HR) were measured in both groups at five times related to the administration of the drugs studied. The primary variable was the clinical status of tracheal intubation. TRIAL REGISTRY: RBR-4xr92k. RESULTS: GM was associated with no significant hemodynamic parameter change after injection. GM showed 85% (29/34) poor intubation clinical status, 15% (5/34) good, and 0% excellent (< 0.0001). CONCLUSION: Magnesium sulfate did not provide adequate clinical status when compared to rocuronium at a dose of 50 mg.kg-1 for rapid sequence intubation in adult patients.

Epidemiology, diagnosis, treatment, and future perspectives concerning SARS-COV-2: a review article

SUMMARY The present study aimed to review the epidemiology, clinical manifestation, laboratory diagnosis, treatment, and future perspectives related to COVID-19 infections. The following electronic databases were used searched: MEDLINE, SCIELO, and LILACS. It became clear that COVID-19 infections occur through exposure to the virus, and both the immunosuppressed and healthy population appear susceptible. The clinical course of COVID-19 is still not clear, although the SARS-CoV-2 infection seems to develop with mild, influenza-like symptoms in the vast majority of subjects, i.e., 10%-15% of COVID-19 patients. Since rRT-PCR tests serve as the gold standard method to confirm a SARS-CoV-2 infection, false-negative results could hinder the prevention and control of the epidemic, particularly considering the test plays a key role in the decision for continued isolated medical observation or discharge. Our findings also indicate that a radical increase in the identification and isolation of currently undocumented infections would be needed to fully control SARS-CoV2.

RESUMO O presente estudo teve como objetivo realizar uma revisão sobre epidemiologia, manifestações clínicas, diagnóstico laboratorial, tratamento e perspectivas futuras relacionados à infecção pelo COVID-19. As seguintes bases de dados eletrônicas foram utilizadas MEDLINE, SCIELO e LILACS. Ficou claro que a infecção pelo COVID-19 ocorre por exposição ao vírus, e tanto a população imunossupressora quanto a normal parecem suscetíveis. O curso clínico do COVID-19 ainda não está claro, embora a infecção por SARS-CoV-2 pareça ocorrer com sintomas leves e semelhantes à gripe na grande maioria dos indivíduos, em 10%-15% dos pacientes com COVID-19. Uma vez que os testes rRT-PCR servem como o método padrão-ouro para confirmar a infecção do SARS-CoV-2, os resultados falso-negativos podem dificultar a prevenção e o controle da epidemia, particularmente quando este teste desempenha um papel de referência fundamental na decisão da necessidade de observação médica isolada ou alta. Nossos achados também indicam que seria necessário um aumento radical na identificação e isolamento de infecções não documentadas atualmente para controlar totalmente o SARS-CoV2.

Effectiveness of magnesium sulfate compared to rocuronium for rapid sequence tracheal intubation in adults: clinical randomized trial / Efetividade do sulfato de magnésio comparado ao rocurônio para intubação em sequência rápida em adultos: ensaio clínico randomizado

Abstract Introduction and objectives: Magnesium sulphate has been used in anesthesia because it has relevant clinical features such as: analgesia, autonomic response control and muscle relaxation. Using the agent to establish adequate conditions for tracheal intubation remains controversial. The aim of the study was to compare the effectiveness of magnesium sulfate and rocuronium for rapid sequence tracheal intubation in adults. Methods: Double blind, randomized, unicentric, prospective study assessed 68 patients, ASA 1 or 2, over 18 years, scheduled for appendectomy under general anesthesia. Patients were divided into two groups. GM patients received 50 mg.kg-1magnesium sulfate and GR patients, 1 mg.kg-1 rocuronium immediately before anesthesia induction. Arterial Blood Pressure (BP) and Heart Rate (HR) were measured in both groups at five times related to the administration of the drugs studied. The primary variable was the clinical status of tracheal intubation. Trial Registry: RBR-4xr92k. Results: GM was associated with no significant hemodynamic parameter change after injection. GM showed 85% (29/34) poor intubation clinical status, 15% (5/34) good, and 0% excellent (< 0.0001). Conclusion: Magnesium sulfate did not provide adequate clinical status when compared to rocuronium at a dose of 50 mg.kg-1 for rapid sequence intubation in adult patients.

Resumo Justificativa e objetivos: O sulfato de magnésio vem sendo utilizado em anestesia por apresentar características relevantes à prática clínica como: analgesia, controle dos reflexos autonômicos e relaxamento muscular. A utilização deste agente para garantir condições adequadas para a intubação traqueal permanece controverso. O objetivo deste trabalho é determinar a efetividade do sulfato de magnésio comparado ao rocurônio para intubação orotraqueal em sequência rápida em pacientes adultos. Métodos: Este estudo duplamente encoberto, aleatorizado, unicêntrico e prospectivo avaliou 68 pacientes, ASA 1 ou 2, maiores de 18 anos, escalados para cirurgias de apendicectomia sob anestesia geral. Foram alocados em dois grupos, o GM recebeu 50 mg.kg-1 de sulfato de magnésio e o GR, 1 mg.kg-1 de rocurônio imediatamente antes da indução anestésica. Os valores de Pressão Arterial (PA) e Frequência Cardíaca (FC) foram aferidos nos dois grupos em cinco momentos relacionados com a administração dos fármacos do estudo. A variável primária foi condição clínica da intubação. Registro: RBR-4xr92k. Resultados: O GM não apresentou alteração significativa dos parâmetros hemodinâmicos após infusão. O GM apresentou 85% (29/34) de condição pobre, 15% (5/34) condição clínica boa e 0% condição clínica excelente (< 0,0001). Conclusão: O sulfato de magnésio não propiciou condições clínicas aceitáveis quando comparado ao rocurônio para intubação orotraqueal em sequência rápida em pacientes adultos quando utilizada a dose de 50 mg.kg-1.

Effectiveness of ozone therapy compared to other therapies for low back pain: a systematic review with meta-analysis of randomized clinical trials / Efetividade da ozonioterapia comparada a outras terapias para dor lombar: revisão sistemática com metanálise de ensaios clínicos randomizados

Abstract Background and objectives: Low back pain is a prevalent disease in the adult population, whose quality of life is considerably affected. In order to solve this problem, several therapies have been developed, of which ozone therapy is an example. Our objective in this study was to determine the effectiveness of ozone therapy for lumbar pain relief in adult patients compared to other therapies (steroid and placebo). Method: We used randomized clinical trials to compare the effectiveness of ozone and other therapies for lumbar pain relief in adults (Prospero: CRD42018090807). Two independent reviewers searched the Medline (1966-April/2018), Scopus (2011-May/2018), Lilacs (1982-May/2018), and EMBASE (1974-March/2018) databases. We use the terms ozone and pain as descriptors. The primary variable was pain relief and the secondary ones were complication, degree of satisfaction, quality of life and recurrence of pain. Results: Of the 779 identified articles, six selected clinical trials show that ozone therapy is more effective for lumbar pain relief; however, they were mostly classified as having a high or uncertain risk of bias (Cochrane Handbook). The meta-analysis regarding the effectiveness of pain relief did not show a significant difference between groups in the three-month period (RR = 1.98, 95% CI: 0.46-8.42, p= 0.36; 366 participants). It also showed greater effectiveness of the ozone therapy at six months compared to other therapies (steroid and placebo) (RR = 2.2, 95% CI: 1.87-2.60, p< 0.00001; 717 participants). Conclusions: The systematic review has shown that ozone therapy used for six months for lumbar pain relief is more effective than other therapies; however, this result is not definitive as data from studies with moderate to high risk of bias were used.

Resumo Justificativa e objetivos: A lombalgia é uma enfermidade prevalente na população adulta, que tem sua qualidade de vida afetada consideravelmente. Com intuito de resolver este problema, desenvolveram-se várias terapias. Um exemplo é a ozonioterapia. Objetivamos neste estudo determinar a efetividade da ozonioterapia para alívio da dor lombar em pacientes adultos, quando comparada a outras terapias (esteroide e placebo). Método: Usamos de ensaios clínicos randomizados para comparar a efetividade do ozônio e de outras terapias para o alívio da dor lombar em adultos (Prospero: CRD42018090807). Dois revisores independentes analisaram as bases Medline (1966-Abril/2018), Scopus (2011-Maio/2018), Lilacs (1982-Maio/2018) e Embase (1974-Março/2018). Como descritores, usamos termos ozone e pain. Temos como variável primária o alívio da dor e como variáveis secundárias: complicação, grau de satisfação, qualidade de vida e recorrência da dor. Resultados: Os seis ensaios clínicos selecionados, de 779 artigos identificados, mostram que o grupo do ozônio é mais efetivo para o alívio da dor lombar, porém, foram classificados em sua maioria com alto ou incerto risco de viés (Handbook Cochrane). A metanálise referente à efetividade no alívio da dor não apresentou diferença significante entre os grupos no período de três meses (RR = 1,98; 95% IC: 0,46-8,42; p= 0,36; 366 participantes). Também denotou maior efetividade em seis meses do grupo ozônio em relação a outras terapias (esteroide e placebo) (RR = 2,2; 95% IC: 1,87-2,60; p< 0,00001; 717 participantes). Conclusões: A revisão sistemática demonstrou que ozonioterapia usada por seis meses para alívio da dor lombar é mais efetiva do que outras terapias. Entretanto, esse resultado não é definitivo, visto que foram usados dados de estudos com moderado a alto risco de viés.