Vancomycin-associated hemorrhagic occlusive retinal vasculitis masquerading as central retinal vein occlusion / Vasculite hemorrágica oclusiva da retina associada à vancomicina (HORV) mascarada como oclusão da veia central da retina

ABSTRACT A 69-year-old female was referred with sudden unilateral painless decreased vision that began 2 days after uncomplicated cataract surgery in the left eye. Visual acuity was hand motion and biomicroscopy showed a mild anterior chamber reaction, no hypopyon, and an intraocular lens that had been placed within the capsular bag. A dilated fundus examination revealed optic disk edema, widespread deep and superficial intraretinal hemorrhages, retinal ischemia, and macular edema. A cardiological evaluation was normal and thrombophilia tests were negative. After surgery, prophylactic vancomycin (1mg/0.1ml) had been injected intracamerally. The patient was diagnosed with hemorrhagic occlusive retinal vasculitis likely secondary to vancomycin hypersensitivity. Recognition of this entity is important to ensure early treatment and the use of intracameral vancomycin in the fellow eye should be avoided after cataract surgery.

RESUMO Esse caso se refere a uma paciente de 69 anos, sexo feminino, com relato de baixa acuidade visual súbita e indolor no olho esquerdo, de início 2 dias após cirurgia de catarata sem complicações. A acuidade visual era de movimento de mãos e a biomicroscopia mostrou reação de câmara anterior moderada, sem hipópio, e lente intraocular posicionada dentro do saco capsular. A fundoscopia evidenciou edema de disco óptico, hemorragias difusas intrarretinianas superficiais e profundas, isquemia retiniana e edema macular. A avaliação cardiológica foi normal e os testes para trombofilia foram negativos. Ao final da cirurgia foi injetado antibioticoprofilaxia com vancomicina (1mg/0,1ml) na câmara anterior. A paciente foi diagnosticada com vasculite hemorrágica oclusiva da retina secundária à hipersensibilidade a vancomicina. O reconhecimento dessa entidade é importante para o tratamento precoce e para evitar o uso de vancomicina intracameral em caso de cirurgia de catarata no olho contralateral.

Prevalence of early neonatal sepsis and positive maternal culture for group B beta-hemolytic Streptococcus

SUMMARY OBJECTIVE: The aim of this study was to evaluate the prevalence of early neonatal sepsis in pregnant women with a positive culture for group B beta-hemolytic Streptococcus in a middle-income city in Southeastern Brazil. METHODS: A retrospective cohort study was conducted, involving singleton low- and high-risk pregnancies in whom group B beta-hemolytic Streptococcus cultures were evaluated between 35 and 37 weeks of gestation using vaginal and anal swabs. A specific medium (Todd-Hewitt) was used for culturing. The pregnant women were divided into two groups based on positive (n==201) and negative (n==420) cultures for group B beta-hemolytic Streptococcus. RESULTS: The maternal colonization rate by group B beta-hemolytic Streptococcus was 32.3%. The prevalence of early neonatal sepsis was 1.0% (2/201) among patients with a positive group B beta-hemolytic Streptococcus culture and 1.9% (8/420) among patients with a negative culture. Among the patients who underwent adequate prophylaxis, crystalline penicillin G was used in 51.9% (54/104), followed by cefazolin in 43.3% (45/104), ampicillin in 3.8% (4/104), and clindamycin in 1.0% (1/104). A model that included prematurity (p==0.001) proved to be an independent risk predictor of early neonatal sepsis [χ2 (1)==15.0, odds ratio: 16.9, 95% confidence interval: 4.7-61.6, p<0.001, Nagelkerke R2==0.157]. CONCLUSION: The prevalence of a positive culture for group B beta-hemolytic Streptococcus was high. However, the prevalence of early neonatal sepsis was low in pregnant women with both positive and negative group B beta-hemolytic Streptococcus cultures and in pregnant women with a positive culture who underwent both adequate and inadequate antibiotic prophylaxis. Prematurity proved to be an independent predictor of early neonatal sepsis, considering the entire study population.

Hipogamaglobulinemia e rituximabe: relato de casos / Hypogammaglobulinemia and rituximab: case reports

Secondary immunodeficiency can result from neoplasms, infections, or immunosuppressive therapy. Rituximab (RTX) is an anti-CD20 antibody that depletes B lymphocytes and can induce symptomatic hypogammaglobulinemia. We report 3 cases of symptomatic hypogammaglobulinemia associated with the use of RTX. In patient 1 with rheumatoid arthritis, RTX induced low levels of immunoglobulins and recurrent airway infections. RTX discontinuation led to a normalization of the humoral immune response. Patients 2 and 3, treated with RTX for non-Hodgkin lymphoma and systemic lupus erythematosus, respectively, developed persistent secondary hypogammaglobulinemia requiring immunoglobulin replacement therapy for years. After RTX discontinuation, patients may experience rapid recovery of humoral function or remain with low serum immunoglobulin levels for extended periods. With the increasing use of therapies targeting components of the immune system, a high degree of clinical suspicion for the development of secondary immunodeficiency may minimize the morbidity and mortality associated with these therapies.

As imunodeficiências secundárias podem ser uma consequência de neoplasias, infecções ou tratamentos imunossupressores. O rituximabe (RTX) é um anticorpo anti-CD20 que depleta os linfócitos B e pode induzir uma hipogamaglobulinemia sintomática. Aqui, relatamos três casos de hipogamaglobulinemia sintomática associada ao uso de RTX. Na primeira paciente com artrite reumatoide, o RTX induziu a baixos níveis de imunoglobulinas associadas a infecções de vias aéreas de repetição. Após a suspensão do RTX, houve normalização da resposta imune humoral. Os outros dois casos, com o uso de RTX para tratamento de linfoma não-Hodgkin e lúpus eritematoso sistêmico, respectivamente, as pacientes evoluíram com hipogamaglobulinemia secundária persistente, com necessidade de reposição de imunoglobulina por vários anos. Pacientes tratados com RTX podem apresentar, após a sua suspensão, uma recuperação rápida da função humoral ou permanecerem com baixos níveis séricos de imunoglobulinas por longos períodos. Com o crescente uso dos tratamentos direcionados para componentes do sistema imunológico, um alto grau de suspeição clínica para o aparecimento de imunodeficiências secundárias pode minimizar a morbimortalidade associada a estes tratamentos.

Mordedura humana em dorso nasal: relato de caso / Human bite on nasal dorsum: case report / Mordida humana en espalda nasal: reporte de caso

As lesões na face decorrentes de mordedura humana estão entre os tipos de trauma causados por violência interpessoal. Injúrias causadas nesta região podem gerar uma série de morbidades como perdas teciduais importantes, infecções, além de cicatrizes irreversíveis quando a ferida é passível de reparo, portanto, os cuidados pós-trauma devem visar à minimização de cura, além da funcionalidade, buscando o máximo de estética possível. Este trabalho tem como objetivo relatar um caso clínico de mordida humana em região de dorso nasal, com avulsão da ponta nasal, atendida no Hospital da Restauração Governador Paulo Guerra, Recife-PE, pelo serviço de Cirurgia Buco-Maxilo-Facial. Procedeu-se com reparo primário e antibioticoterapia profilática, no qual o resultado do tratamento foi considerado satisfatório, boa cicatrização tecidual e sem queixas funcionais e estéticas... (AU)

Injuries to the face resulting from human bite are among the types of trauma caused by interpersonal violence. The injuries caused in this region, can generate a series of morbidities such as major tissue loss, infection, and irreversible scarring when the wound is repairable, therefore, posttrauma care should aim to minimize healing, in addition to functionality, seeking maximum aesthetics as possible. This paper aims to report a clinical case of human bite in the nasal dorsum region, with avulsion of the nasal tip, attended at the Hospital da Restauração Governador Paulo Guerra, Recife-PE, by the service of Oral and Maxillofacial Surgery. It was proceeded with primary repair and prophylactic antibiotic therapy, in which the result of the treatment was considered satisfactory, good tissue healing and without functional and aesthetic complaints... (AU)

Las lesiones faciales producidas por mordeduras humanas se encuentran entre los tipos de traumatismos causados por la violencia interpersonal. Las lesiones causadas en esta región pueden generar una serie de morbilidades como la pérdida de tejidos importantes, la infección y la cicatrización irreversible cuando la herida es reparable, por lo tanto, los cuidados posttrauma deben tener como objetivo minimizar la cicatrización, además de la funcionalidad, buscando la máxima estética posible. Este trabajo tiene como objetivo reportar un caso clínico de mordedura humana en la región del dorso nasal, con avulsión de la punta nasal, atendido en el Hospital da Restauração Governador Paulo Guerra, Recife-PE, por el servicio de Cirugía Oral y Maxilofacial. Se procedió a la reparación primaria y a la terapia antibiótica profiláctica, en la que el resultado del tratamiento se consideró satisfactorio, con buena cicatrización de los tejidos y sin quejas funcionales y estéticas... (AU)

Analysis of the costs of the basic care line for sickle cell disease in Brazilian children under 5 years of age

ABSTRACT Objective: To evaluate and estimate the cost of basic care in sickle cell disease (SCD) for patients under five years of age, within the scope of the Unified Health System (SUS) and to discuss the costs related to possible complications of the disease from the literature. Methods: The main management and conduct recommendations in the SCD up to five years of age, with healthy and baseline health status, were extracted from the Basic Guidelines of the Care Line in the SCD of the Ministry of Health. Systematic data regarding costs of medicines were extracted from the Medicine Market Regulation Chamber. The SUS Table of Procedures, Medicines and Orthotics, Prosthetics and Auxiliary Means of Movement Management System was the guide for the values of complementary exams, as well as for medical consultations. The values applied to calculate the vaccination schedule were extracted from the Pan American Health Organization, adopting the perspective of the SUS-paying costs. Results: The total cost obtained for basic care of SCD in children up to five years of age, including the use of antibiotic prophylaxis, immunizations and the performance of transcranial Doppler ultrasound in the prevention and early detection of cerebrovascular accidents was, on average, $1020.96. Conclusion: The cost-effectiveness of prophylaxis in SCD, up to five years of age, exceeds the expenses resulting from hospitalizations due to complications of the disease. The study of expenses associated with SCD could be used to establish public policies, improve prevention strategies and treat the symptoms and complications of the disease.

Cost effectiveness of intracameral cefuroxime prophylaxis and its efficacy in preventing endophthalmitis after cataract surgery in a referral hospital / Custo-efetividade da profilaxia com cefuroxima intracameral e sua eficácia na prevenção da endoftalmite após cirurgia de catarata em um hospital de referência

ABSTRACT Purpose: To present the results of a retrospective study regarding the clinical and economic impact of intracameral cefuroxime administration to prevent endophthalmitis during cataract surgery in a referral hospital. Methods: This study included 16,902 eyes from patients who had undergone cataract surgery between 2013 and 2017. From May 2014 onwards, all patients received routine intracameral injections of 1 mg cefuroxime (10 mg/1 mL) after phacoemulsification. The prophylactic efficacy was evaluated using the relative risk ratio, whereas the economic impact was evaluated using number needed to treat to avoid endophthalmitis. Results: Before introducing cefuroxime, 3,407 cataract surgeries were performed using the phacoemulsification technique, and 7 post-operatory cases of endophthalmitis occurred (0.2% incidence). After introducing the cefuroxime protocol, 13,495 surgeries were performed, and 4 endophthalmitis cases were registered (0.03% incidence). Cefuroxime was identified as a protective factor against the development of endophthalmitis [risk ratio = 14%, p=0.002, 95% confidence interval (CI) 95%, 4%-49%], with an economic impact of number needed to treat = 568. The potential savings with cefuroxime was approximately US $2,334.36 for every 568 patients treated. Conclusion: The incidence of endophthalmitis decreased by 86% (risk ratio = 14%, p=0.002, 95% CI, 4%-49%) after introducing intracameral cefuroxime prophylaxis at the study hospital. The results presented herein provide strong evidence for the use of cefuroxime in endophthalmitis prophylaxis after phacoemulsification surgeries, outperforming the alter­native by providing both economic and clinical benefits.

RESUMO Objetivo: Apresentar os resultados de um estudo retrospectivo sobre o impacto clínico e econômico da administração de cefuroxima intracameral para prevenir endoftalmite nas cirurgias de catarata em um hospital de referência. Métodos: Este estudo incluiu 16.902 olhos de pacientes submetidos à cirurgia de catarata entre 2013 e 2017. A partir de maio de 2014, todos os pacientes receberam rotineiramente uma injeção intracameral de 1mg de cefuroxima (10mg/1mL) ao final da cirurgia de facoemulsificação. A eficácia da profilaxia foi avaliada usando o risco relativo e o impacto econômico foi avaliado com o número necessário para tratar para se evitar um caso de endoftalmite. Resultados: Antes da introdução do protocolo da cefuroxima, foram realizadas 3.407 cirurgias de catarata por facoemulsificação e ocorreram 7 casos de endoftalmite pós-operatória (incidência de 0,2%). Após a introdução do protocolo da cefuroxima, foram realizadas 13.495 cirurgias e registrados 4 casos de endoftalmite (incidência de 0,03%). A cefuroxima foi um fator de proteção no desenvolvimento de endoftalmite (risco relativo = 14%, p=0,002, Intervalo de Confiança de 95% [IC 95%], 4% - 49%) e o impacto econômico do número necessário para tratar = 568. A economia potencial com a cefuroxima foi de aproximadamente US$ 2.334,36 para cada 568 pacientes tratados. Conclusão: A incidência de endoftalmite diminuiu 86% (risco relativo = 14%, p=0,002, IC 95% 4% - 49%) desde a introdução da profilaxia com cefuroxima intracameral no hospital do estudo. Os resultados apresentados mostram forte evidência para o uso da cefuroxima na profilaxia da endoftalmite após cirurgias de facoemulsificação, por proporcionar economia de custos e benefício clínico.

Evaluation of Antibiotic Prophylaxis Prescriptions for Infectious Endocarditis Before Oral Procedures Between Cardiologists and Dentists

Abstract Background Infective endocarditis (IE) is a serious disease with a high mortality rate. Antibiotic prophylaxis for bacterial endocarditis before invasive procedures has been recommended in patients with predisposing cardiac conditions since 1960, but contemporary guidelines worldwide have proposed changes. Objective To evaluate the knowledge and pattern of prescription by cardiologists and dentists regarding antibiotic prophylaxis for bacterial endocarditis before risky oral procedures. Methods This is an observational and cross-sectional study. Data were obtained from an online questionnaire, sent to cardiologists and dentists linked to specialty societies, in the first semester of 2021. Data analysis was performed using descriptive statistics, and comparisons between variables were done in an exploratory approach. The significance level adopted was 5%. Results From 613 responders, 82.5% of cardiologists and 79.5% of dentists reported prescribing antibiotic prophylaxis for patients at high and moderate risk for IE. Of dental procedures capable of generating bacteremia, all were correctly identified by more than 50.0% of the sample. As for the habits of daily living, flossing and toothbrushing had almost 50.0% of correct answers, chewing had only 17.3%, and 40.9% reported that none of the actions presented a risk of bacteremia. When comparing variables, the correct prescription of amoxicillin (2 g, 30-60 minutes before the procedure) was more prevalent among cardiologists and in responders with less than 20 years of graduation (p<0.01). Conclusion In the present study, the prescription of antibiotic prophylaxis for IE were frequent for high- and moderate-risk patients, before oral/dental procedures. Partial knowledge was found about endocarditis, which highlights the need for continuous medical/dental education.

Prevalencia de infección de herida quirúrgica en pacientes con profilaxis antimicrobiana en cesárea programada / Prevalence of surgical wound infection in patients with antimicrobial prophylaxis in planned cesarean section

Resumen: Objetivo: Determinar la prevalencia de infecciones en la herida quirúrgica en cesáreas programadas del HRAEV. Materiales y método: Estudio retrospectivo, descriptivo, observacional tipo corte transversal para determinar la prevalencia de IHQ en pacientes llevadas a cesárea programada con profilaxis antibiótica en HRAEV. Resultados: Se evaluaron 185 expedientes de pacientes sometidas a cesárea programada, con edad entre 28 a 37 años (48.1%) con un peso promedio 81 kg (DE=10.1) con un índice de masa corporal (IMC) promedio de 30 (DE=4.24) es decir un IMC entre 25.76 a 34.24. De ellas, 4 pacientes (2.16%) presentaron infección de herida quirúrgica durante cesárea programada, las cuales recibieron ceftriaxona como PA mayor a 120 minutos previo a la incisión de la piel, estos pacientes se clasifican como ASA II y tenían un IMC superior a 30 kg/m2 y sin comorbilidades registradas. El tiempo de profilaxis antibiótica más frecuente en las pacientes llevadas a cesárea programada fue >120 minutos (34.08%) y se administró ceftriaxona en el 84.86% de la población que en su mayoría es ASA II (97.83%). El 100% de las heridas fueron superficiales. Conclusiones: En el presente estudio se encontró que la prevalencia de IHQ en cesáreas programadas en HRAEV fue de 2.16%, cifra que se encuentra por debajo de la prevalencia a nivel mundial, dado a que las pacientes seleccionadas no contaban con algunos de los factores de riesgo añadidos que aumentaran el riesgo de IHQ en comparación con otros estudios.

Abstract: Objective: To determine the prevalence of surgical wound infections in scheduled HRAEV cesarean sections. Materials and method: Retrospective, descriptive, observational cross-sectional study to determine the prevalence of IHC in patients undergoing scheduled cesarean section with antibiotic prophylaxis in HRAEV. Results: 185 records of patients undergoing scheduled cesarean section were evaluated, aged between 28 to 37 years (48.1%) with an average weight of 81 kg (SD = 10.1) with an average body mass index (BMI) of 30 (SD = 4.24) that is, a BMI between 25.76 and 34.24. Of these, 4 patients (2.16%) presented surgical wound infection during scheduled cesarean section, who received ceftriaxone as PA greater than 120 minutes prior to skin incision, these patients are classified as ASA II and had a BMI greater than 30 kg/m2 and without recorded comorbidities. The most frequent antibiotic prophylaxis time in patients undergoing scheduled cesarean section was >120 minutes (34.08%) and ceftriaxone was administered in 84.86% of the population, which is mostly ASA II (97.83%). 100% of the wounds were superficial. Conclusions: In the present study, it was found that the prevalence of IHC in cesarean sections scheduled in HRAEV was 2.16%, a figure that is below the worldwide prevalence, given that the selected patients did not have some of the risk factors. added risk that increased the risk of SSI compared to other studies.

Efectividad del moxifloxacino intracameral profiláctico para reducir la endoftalmitis posterior a cirugía de cataratas en población chilena

Background: Endophthalmitis is a serious infectious complication of cataract surgery, which may lead to vision loss. Aim: To evaluate the effectiveness of intracameral moxifloxacin in reducing endophthalmitis after cataract surgery in Chilean patients. Material and Methods: We reviewed all phacoemulsification surgeries performed between 2012 and 2020 at a public hospital. The use of intraoperative intracameral moxifloxacin and possible surgical complications were recorded. In patients with postoperative endophthalmitis, we reviewed their risk factors and clinical characteristics. Results: In the study, 22,869 phacoemulsification surgeries were registered, with an annual average of 2,541. The use of prophylactic intracameral moxifloxacin started progressively in 2014. In 2018 it was used in 88% of the surgeries. Fifteen eyes evolved with postoperative endophthalmitis, but none of these surgeries used intracameral moxifloxacin. Five and seven cases occurred in 2012 and 2013, respectively. There was a trend favoring moxifloxacin use, as a preventive measure for endophthalmitis, but the difference between groups was not significant (p = 0.56). In the group with endophthalmitis, 33.3% of the eyes were from patients with type 2 diabetes mellitus, in 13.3% there was rupture of the posterior capsule and 60% of the eyes corresponded to female patients. Since 2018 there is no record of endophthalmitis after cataract surgery performed in this center. Conclusions: Intracameral moxifloxacin showed a tendency to reduce the frequency of endophthalmitis after phacoemulsification surgery, but a longer observation period is required to reach statistical significance, due to the low frequency of this complication.

Usage of Surgical Antibiotic Prophylaxis in Routine Otolaryngologic Surgeries in Turkey

Abstract Introduction: Inappropriate antibiotic use in the world leads to an increase in both health care costs and antibiotic resistance. Surgical antibiotic prophylaxis (SAP) is used by most surgeons, especially in the postoperative period. Objective The aim of the study is to determine the approach of ear, nose, and throat (ENT) specialists to surgical antibiotic prophylaxis in routine surgeries, and to raise awareness regarding inappropriate antibiotic use. Methods ENT specialists from all over Turkey participated in the study by filling out a data collecting form. The form consisted of 6 questions and was sent to specialists via email. Routine ENT operations such as adenoidectomy, tonsillectomy, adenotonsillectomy, ventilation tube application, septoplasty, rhinoplasty, septorhinoplasty (non-complicated), tympanoplasty, and simple mastoidectomy were chosen for the study. Data were analyzed statistically. Results The form results of 110 ENT specialists were evaluated. The rate of participants who used and did not use SAP was 77.3% and 22.7%, respectively. The SAP usage rates of septoplasty, rhinoplasty, and septorhinoplasty operations were 84.7%, 81.2%, and 75.3%, respectively. For tympanoplasty and ventilation tube application operations, the rates were 82.4% and 24.7%, respectively. Finallly, the SAP usage rates of adenoidectomy, tonsillectomy, and adenotonsillectomy were 57.6%, 75.3%, and 72.9%, respectively. Conclusion Otolaryngological surgeries are often classified as clean or clean-contaminated surgeries. In most studies in the literature, it is reported that SAP use is unnecessary in routine otolaryngological surgery. Providing inservice training, regularly updating the prophylaxis guidelines and sharing these guidelines with surgeons may prevent inappropriate SAP use.

Recomendaciones para el cuidado, prevención de infecciones y quimioprofilaxis en los errores innatos de la inmunidad / Recommendations for care, prevention of infections and chemoprophylaxis in inborn errors of immunity

Los errores innatos de la inmunidad (EII), antes llamados inmunodeficiencias primarias (IDP), son un grupo heterogéneo de trastornos genéticos con defectos en uno o más componentes del sistema inmune. Los pacientes afectados por EII presentan aumentada susceptibilidad a microorganismos únicos o múltiples que se manifestará con infecciones recurrentes de diferente tipo y gravedad dependiendo del tipo de la localización del defecto. La prevención de infecciones es uno de los pilares fundamentales en el abordaje integral de los pacientes con EII. En este trabajo se resumen las conclusiones consensuadas en el Grupo de Trabajo de Inmunología Pediátrica de la Sociedad Argentina de Pediatría, sobre la base de la revisión de la evidencia disponible, respecto a los principios esenciales para el cuidado, la prevención de infecciones y la quimioprofilaxis en los errores innatos de la inmunidad para la orientación del pediatra y especialista dedicados al seguimiento de estas enfermedades.

Inborn errors of immunity, previously named primary immunodeficiency are a heterogeneous group of genetic defects of different components of the immune system. Patients present high susceptibility to an only or several microorganisms, developing recurrent infections; the severity is related to the specific genetic type of immunity defect. The main strategy on the management of these illness is the prevention of infections. These consensus guidelines made by the Pediatric Immunology Work Group of Sociedad Argentina de Pediatría, givese main approaches of infection prevention in order to provide a useful tool for all practitioners who are involved in the management of these patients, based on scientific evidence and broad consensus of a specialized panel expert.

Association between antibiotic prophylaxis and adverse perinatal outcomes in premature rupture of membranes

SUMMARY OBJECTIVE: The aim of this study was to evaluate the association between antibiotic prophylaxis and adverse perinatal outcomes in premature rupture of membranes. METHODS: This retrospective cohort included pregnant women with premature rupture of membranes (between 24 and 33+6 weeks) who used or did not use prophylactic antibiotics. Pearson's chi-square (χ²) test, Student's t-test, and binary logistic regression were used for statistical analysis. RESULTS: A significant effect was observed in patients with premature rupture of membranes using prophylactic antibiotics regarding amniotic fluid index (p=0.007), deepest vertical pocket (p=0.049), duration of antibiotic therapy (p≤0.001), C-reactive protein level upon admission (p≤0.001), leukocyte count upon admission (p=0.007), and length of stay in neonatal intensive care (p=0.047). A significant association was observed between the abovementioned patients and surfactant use during the neonatal period (p=0.04). A higher prevalence of surfactant use was noted in these patients (20.0 vs. 8.7%; p=0.04). CONCLUSION: No association was found between antibiotic prophylaxis and the presence of adverse perinatal outcomes in pregnant women with premature rupture of membranes between 24 and 33+6 weeks of gestation.

Recent research on the epidemiology and preventive strategies of neonatal group B Streptococcus infection in the latest decade / 中国当代儿科杂志

Currently, the main strategy for preventing neonatal group B Streptococcus (GBS) infection is prenatal screening combined with intrapartum antibiotic prophylaxis, which has effectively reduced the incidence of neonatal GBS early-onset disease. However, the burden of GBS infection is still significant. The intrapartum antibiotic prophylaxis strategy has limitations such as inducing antibiotic resistance and inability to effectively prevent GBS late-onset disease. It is crucial to develop and evaluate other prevention strategies, while paying close attention to assessing penicillin allergy in pregnant women and how to prevent GBS infection in neonates with negative maternal GBS screening. In recent years, there has been some progress in GBS vaccines and related immunological research, and the use of specific vaccines is expected to significantly reduce GBS infection in neonates.

Antibioticoprofilaxia em cirurgia adominal: quando recomendar? Posicionamento do Colégio Brasileiro de Cirurgia Digestiva / Antibiotic prophylaxis for abdominal surgery: when to recommend? brazilian college of digestive surgery position paper

ABSTRACT BACKGROUND: Surgical antibiotic prophylaxis is an essential component of perioperative care. The use of prophylactic regimens of antibiotics is a well-established practice that is encouraged to be implemented in preoperative/perioperative protocols in order to prevent surgical site infections. AIMS: The aim of this study was to emphasize the crucial aspects of antibiotic prophylaxis in abdominal surgery. RESULTS: Antibiotic prophylaxis is defined as the administration of antibiotics before contamination occurs, given with the intention of preventing infection by achieving tissue levels of antibiotics above the minimum inhibitory concentration at the time of surgical incision. It is indicated for clean operations with prosthetic materials or in cases where severe consequences may arise in the event of an infection. It is also suitable for all clean-contaminated and contaminated operations. The spectrum of action is determined by the pathogens present at the surgical site. Ideally, a single intravenous bolus dose should be administered within 60 min before the surgical incision. An additional dose should be given in case of hemorrhage or prolonged surgery, according to the half-life of the drug. Factors such as the patient's weight, history of allergies, and the likelihood of colonization by resistant bacteria should be considered. Compliance with institutional protocols enhances the effectiveness of antibiotic use. CONCLUSION: Surgical antibiotic prophylaxis is associated with reduced rates of surgical site infection, hospital stay, and morbimortality.

RESUMO RACIONAL: A antibioticoprofilaxia é um componente importante dos cuidados perioperatórios. OBJETIVOS: Abordar os principais aspectos da antibioticoprofilaxia em cirurgia digestiva. RESULTADOS: Ela é definida como a redução da carga de bactérias no sítio operatório através da obtenção de níveis séricos de antibiótico acima da concentração inibitória mínima no momento da incisão cirúrgica. Está indicada em cirurgias limpas com próteses e nas quais a consequência de uma eventual infecção seja grave, bem como em todas as cirurgias limpas-contaminadas e contaminadas. O espectro de ação do antibiótico deve ser de acordo com a flora esperada no sítio cirúrgico e deve ser administrado 60 minutos antes da incisão, em bolus, por via endovenosa e preferencialmente em dose única. Nos casos de hemorragia importante ou cirurgias mais longas, uma nova dose pode ser administrada. O peso do paciente, a história de alergia a medicamentos e a possibilidade de colonização por bactérias multirresistentes devem ser levados em conta. A aderência a protocolos institucionais aumenta a chance de uso adequado da antibioticoprofilaxia. CONCLUSÕES: A antibioticoprofilaxia está associada à redução das taxas de infecção do sítio cirúrgico, tempo de internação e morbidade.

Efficacy of antibiotic prophylaxis on third molar extraction / Eficácia da profilaxia antibiótica na extração de terceiros molares

Introduction: Third molar extraction surgery is a common dental procedure, often challenging with increased post-operative complications. The need for antibiotic prophylaxis in these cases remains debated. Objective: The aim of this study was to evaluate the effect of antibiotic prophylaxis on the postoperative clinical course of third molar extraction surgeries. Material and method: Sixty-three patients were randomly allocated into two groups after extraction of the four third molars. ATB group (N = 33) the patients received 1g of amoxicillin one hour before the surgical procedure, CTR group (N = 30) the patients did not receive antibiotic prophylaxis. Clinical analyses were performed at 3, 7, 14, and 30 days after the surgical procedure. These analyses consisted of assessing oedema, variation in mouth opening, and soft tissue healing. Furthermore, patient-centered analyses were also carried out through the application of the visual analogue scale (VAS) to assess pain, inflammation, bleeding, difficulty opening the mouth, and chewing. Result: No influence of antibiotic prophylaxis was observed on the evolution of clinical parameters of healing, oedema, and mouth opening. Patients did not notice differences regarding their comfort during the postoperative period. Conclusion: The incidence of complications observed in the present study was low and was not related to infectious processes. The use of prophylactic antibiotic therapy has no beneficial effects on the postoperative clinical course in third molar extraction.

Introdução: Exodontia de terceiro molar é um procedimento odontológico comum, frequentemente desafiador, com complicações pós-operatórias aumentadas. A necessidade de profilaxia com antibióticos nesses casos ainda é motivo de debate. Objetivo: O objetivo deste estudo foi avaliar o efeito da profilaxia com antibióticos no curso clínico pós-operatório das cirurgias de extração do terceiro molar. Material e método: Sessenta e três pacientes foram randomicamente alocados em dois grupos posteriormente a cirurgia de exodontia dos quatro terceiros molares. Grupo ATB (N = 33) utilizou 1g de amoxicilina uma hora antes do procedimento cirúrgico e grupo CTR (N = 30) sem profilaxia antibiótica. Os dentes foram classificados de acordo com Pell & Gregory e Winter. Análises clínicas foram realizadas nos períodos de 3, 7, 14 e 30 dias após o procedimento cirúrgico. As análises consistiram na avaliação do edema, variação de abertura de boca e a cicatrização dos tecidos moles. Também foram executadas análises centradas nos pacientes por meio da aplicação da escala visual analógica (VAS) para avaliação de dor, inflamação, sangramento, dificuldade de abertura bucal e de mastigação. Resultado: Não houve diferenças entre os grupos em relação ao posicionamento dos dentes. Não foi observada influência da profilaxia antibiótica nos parâmetros clínicos de cicatrização, edema e abertura de boca. Os pacientes não notaram diferenças em relação ao seu conforto no pós-operatório. Conclusão: A incidência de complicações foi baixa e não foi relacionada a processos infecciosos. O uso de antibioticoterapia profilática não apresentou efeitos benéficos para o curso clínico pós-operatório em exodontia de terceiros molares.

The influence of the colonization of Streptococcus agalactis in the lower genital tract during pregnancy on the perinatal outcome / 中国综合临床

Objective:To investigate the effect of the colonization of group B streptococcus (GBS) in pregnant women and the use of intrapartum antibiotic prophylaxis (IAP) on perinatal outcomes.Methods:The clinical data of 1 078 pregnant women and their newborn babies delivered in Tongzhou and Xicheng hospital areas of Beijing Friendship Hospital from January 2020 to February 2021 were analyzed retrospectively. The clinical characteristics, complications, perinatal outcomes and neonatal prognosis of the pregnant women with positive and negative GBS were compared according to the GBS colonization, and the effects of IAP on the clinical characteristics, complications, perinatal outcomes and neonatal prognosis of the pregnant women with positive GBS was compared. The measurement data with normal distribution is expressed by x±s, two independent sample t-test was used for comparison between groups. Counting data were expressed in cases or cases (%), Inter group comparison χ 2 test. Results:Among 1 078 pregnant women, 93 were GBS positive (8.6%, GBS positive group), and 93 cases matching the clinical data of the GBS positive group were selected as the GBS negative group. There was no significant difference in age, gestational age, number of pregnancies, number of births, mode of delivery, abnormal blood pressure, abnormal blood glucose, abnormal thyroid function and the proportion of any complication in the GBS positive group (P values were 0.630, 0.613, 0.311, 0.761, 0.163, 0.601, 0.467, 0.388, 1.000, respectively). The proportion of neonates in GBS positive group transferred to pediatrics, the incidence of neonatal infection, pneumonia, anemia and bacterial infection rate were higher than those in GBS negative group (57.0%(53/93) vs 23.7%(22/93), 10.8%(10/93) vs 3.2%(3/93), 29.0%(27/93) vs 14.0%(13/93), 21.5%(20/93) vs 8.6%(8/93), 22.6%(21/93) vs 6.5%(6/93)) (χ 2 values were 21.47, 4.05, 6.24, 6.05, 9.75, respectively; the P values were <0.001, 0.044, 0.012, 0.014, 0.002, respectively). The hospitalization time of neonates transferred to pediatrics was longer than that of GBS negative group (4(0,5) d vs 0(0,0) d, Z=-4.03, P<0.001). The proportion of neonates in IAP group transferred to pediatrics and the incidence of pathological jaundice and adverse outcomes were lower than those in non IAP group (51.1% (24/47) vs 78.1% (25/32), 44.7% (21/47) vs 78.1% (25/32), 42.6% (20/47) vs 65.6% (21/32)) (χ 2 values are 5.92, 8.76 and 4.06, respectively, P values are 0.015, 0.003 and 0.044 respectively). The hospitalization time of neonates transferred to pediatrics was shorter than that of non IAP group (3(0,5) d vs 5(2,7) d, Z=-2.60, P=0.009). There was no significant difference between the two groups in terms of delivery mode, water breaking time, birth weight of neonates, infection, pneumonia, bacteremia/sepsis, and anemia ( P values were 0.073, 0.085, 0.479, 0.538, 0.157, 0.161, 0.238). Conclusions:GBS colonization in the lower genital tract does not increase the incidence of intrauterine infection, premature rupture of membranes and spontaneous preterm delivery in pregnant women, but the risk of bacterial infection and adverse outcomes in newborns is higher, the rate of paediatric transfer is higher, and the hospital stay is longer. IAP can reduce the incidence of neonatal pathological jaundice and shorten the hospital stay.

Antibiotic Prophylaxis Before Invasive Dental Procedures for Patients atHigh Risk of Infective Endocarditis - A Systematic Review

Background: Clinical use of antibiotics prophylaxis (AP) for preventing infective endocarditis (IE) after invasive dental procedures is controversial. Expert consensus guidelines are inconsistent, either restricting its use to high?risk individuals or advising its use again. Objectives: To determine whether there is a genuine need for AP to prevent IE in high?risk patients undergoing invasive dental procedures. Methods: Online search was performed on PubMed, Science Direct, British Dental Journal and Cochrane Register of Controlled Trials. The methodological quality of each study was assessed using the Cochrane Handbook for Systematic Reviews of Interventions. Results: Seventeen (17) clinical trials were included in the final analysis recruiting 2,410 patients (AP = 1,366; placebo = 1,044). Bacteraemia was detected in 302 AP patients (22.1%) and 362 placebo patients (34.7%). AP reduced the risk of bacteraemia by 49% (risk ratio: 0.51; 95% CI; 0.45 to 0.58; P = 0.0001). Conclusion: Although using AP for IE may be pragmatic and justified for high?risk patients undergoing invasive dental procedures, the evidence is inconclusive because post?procedural bacteraemia may not be a good surrogate marker for IE. Moreover, trials investigating the direct association between AP and IE are lacking due to low disease prevalence and high?cost challenges

Protocolo de profilaxis antibiótica para pacientes dentales en riesgo de infección / Antibiotic prophylaxis protocol for dental patients at risk of infection

La profilaxis antibiótica involucra el uso de fármacos en una etapa preoperatoria de atención odontológica, con la finalidad específica de contribuir a la prevención de infecciones sistémicas como la endocarditis infecciosa (EI) asociada a bacteriemias transitorias por procedimientos odontológicos que implican sangrado en pacientes con alto riesgo de complicación por su condición sistémica cardiaca o no cardiaca. Esta complicación potencial inflama el revestimiento interno de las válvulas cardiacas, por proliferación de microorganismos específicos, y aunque es infrecuente es responsable de una elevada tasa de morbilidad y mortalidad. En el año 2007, la Asociación Estadounidense del Corazón (AHA), publica la última actualización vigente en la literatura sobre las recomendaciones y directrices aplicadas para el uso de profilaxis antibiótica. El objetivo de esta revisión pretende desarrollar una síntesis de evidencia existente seguida de un balance honesto de los riesgos y beneficios de forma individual sobre el uso de este protocolo. Se realizó una búsqueda digital integral en idioma español e inglés sobre los protocolos de profilaxis antibiótica en pacientes con riesgo de infección. Se incluyeron bases de datos como: MEDLINE, PUBMED y SciELO, adicionalmente se tomaron como referentes de partida las recomendaciones de la AHA. Se concluye con gran énfasis y soporte de la literatura actual, que los beneficios del uso de profilaxis antibiótica en un momento preoperatorio superan los posibles riesgos de resistencia bacteriana y anafilaxia, por lo que son totalmente justificables y requeridos para los pacientes adultos y niños inmunológicamente comprometidos.

Antibiotic prophylaxis involves the use of drugs at a preoperative stage of dental care, with a specific aim of contributing to the prevention of systemic infections such as infectious endocarditis (IE) associated with transient bacteremia due to dental procedures that involve bleeding in patients at high risk of complication due to their non-cardiac or cardiac systemic condition. This potential complication inflames the inner lining of the heart valves, due to the proliferation of specific microorganisms, and although it is uncommon, it is responsible for a high rate of morbidity and mortality. In 2007, the American Heart Association (AHA) published the last current update in the literature on the recommendations and guidelines applied for the use of antibiotic prophylaxis. The aim of this review is to develop a synthesis of existing evidence followed by an honest assessment of the risks and benefits individually on the use of this protocol. A comprehensive digital search was conducted in both Spanish and English on antibiotic prophylaxis protocols in patients at risk of infection. Databases such as MEDLINE, PUBMED, and SciELO were included, in addition the AHA recommendations were taken as baseline references. It is concluded with great emphasis and support from the current literature, that the benefits of the use of antibiotic prophylaxis in a preoperative moment overcome the possible risks of bacterial resistance and anaphylaxis, so they are fully justifiable and required for immunologically compromised adult and children patients.