ABSTRACT
Abstract Infections caused by methicillin-susceptible Staphylococcus aureus (MSSA) are still associated with significant morbidity and mortality. Treatment failures of cefazolin (CFZ) have been reported and probably related to the inoculum effect. New treatments for severe MSSA infections are needed and ceftaroline fosamil (CPT) could be an option. Our aim was to describe the clinical characteristics of five patients with com plicated MSSA bacteremia failing CFZ and successfully treated with CPT. We performed a retrospective chart review in a Hospital in Buenos Aires, Argentina; in a 12-month period, five patients (24%) of 21 with MSSA bacteremia experienced CFZ failure and were salvaged with CPT. The median time of CFZ therapy was 10 days before changing to CPT; four patients had evidence of metastatic spread and 2 had endocarditis. All patients experienced microbiological and clinical cure with CPT, which was used as monotherapy in 4 and in combination with daptomycin in another. One patient discontinued CPT due to neutropenia on day 23 of treatment. In patients with MSSA BSI failing current therapy, CPT could be a good therapeutic option.
Resumen Las infecciones causadas por Staphylococcus aureus sensible a la meticilina (SASM) todavía se asocian con una morbilidad y mortalidad significativas. Se han informado fallas en el tratamiento de cefazolina (CFZ) probablemente relacionadas con efecto inóculo. Nuevos tratamientos son necesarios para estas infecciones y ceftarolina fosamil (CPT) podría ser una opción. Nuestro objetivo fue describir las características clínicas de cinco pacientes con bacteriemia por SASM complicada con falla a CFZ y que fueron exitosamente tratados con CPT. Realizamos una revisión retrospectiva de historias clínicas en un hospital de Buenos Aires, Argentina; en un período de 12 meses, cinco pacientes (24%) de 21 con bacteriemia por SASM experimentaron falla a CFZ y fueron tratados con CPT. La mediana de tiempo de la terapia con CFZ fue de 10 días antes de cambiar a CPT; cuatro pacientes presentaban evidencia de diseminación metastásica y 2 tenían endocarditis. Todos los pacientes experimen taron curación microbiológica y clínica con CPT, que se utilizó como monoterapia en 4 y en combinación con daptomicina en otro. Un paciente interrumpió CPT debido a neutropenia el día 23 de tratamiento. En enfermos con infecciones graves por SASM que fallan en la terapia actual, CPT podría ser una buena opción terapéutica.
ABSTRACT
ABSTRACT Objective Perioperative deep prosthetic joint infection (PJI) is a serious postoperative complication of total hip arthroplasty (THA). We aimed to compare the efficacy of cefazolin administered within 24 and 48 h of primary THA for PJI prophylaxis. Methods In this retrospective study, 720 patients were divided into two groups depending on whether cefazolin was administered as a single injection of 2 g twice daily within 24 (24-h group) or 48 h of surgery and the following day (48-h group). Sex, age at surgery, body mass index, co-existing diseases, blood test data, and PJI risk factors were evaluated. Results The 24- and 48-h groups included 364 and 356 patients, respectively. Diabetes mellitus was the most common risk factor for PJI in both groups. The corresponding incidence of perioperative deep PJI following primary THA was 0.55% and 0.28% in the 24- and 48-h groups, respectively. There was no significant difference in patient background characteristics between the groups. Conclusions Cefazolin administration within 24 h of primary THA may be appropriate for perioperative deep PJI. Level of Evidence II; Retrospective study.
RESUMO Objetivo A infecção de prótese articular (IPA) perioperatória profunda é uma grave complicação pós-operatória da artroplastia total de quadril (ATQ). Este estudo buscou comparar a eficácia da cefazolina administrada dentro de 24 e 48 horas após ATQ para profilaxia de IPA. Métodos Neste estudo retrospectivo, 720 pacientes foram divididos em dois grupos, que receberam cefazolina em uma injeção de 2g duas vezes por dia nas primeiras 24 e 48 horas (grupos de 24 e 48 horas), respectivamente. Foram avaliados sexo, idade na data da cirurgia, índice de massa corporal, comorbidades, testes sanguíneos e fatores de risco para IPA. Resultados Os grupos de 24 e 48 horas incluíram, respectivamente, 364 e 356 pacientes. O fator de risco para IPA mais comum nos dois grupos foi o diabetes mellitus. A incidência de IPA perioperatória profunda após ATQ foi, respectivamente, de 0,55% e 0,28% nos grupos de 24 e 48 horas. Não houve diferença significativa nas características gerais dos pacientes entre os dois grupos. Conclusão A administração de cefazolina dentro de 24 horas após ATQ primária pode ser adequada para IPA perioperatória profunda. Nível de Evidência II; Estudo retrospectivo.
ABSTRACT
SUMMARY OBJECTIVE To investigate the clinical efficacy of cefazolin sodium pentahydrate combined with vacuum sealing drainage (VSD) in the treatment of open fracture complicated with soft tissue injury. METHODS Sixty-three patients with open fracture complicated with soft tissue injury were divided into observation (n = 33) and control (n = 30) groups. After surgical reduction, fixation, and repair of the fractures, the control group was treated with VSD for 10 days, and the observation group was treated with cefazolin sodium pentahydrate based on VSD for 10 days. The infection control time was recorded. After treatment, the pain of patients was evaluated. Before and after treatment, the serum levels of C-reactive protein (CRP), interleukin (IL)-6, IL-8, tumor necrosis factor α (TNF-α), cortisol, epinephrine, norepinephrine, and glucose were detected. After 6 months of treatment, the total effective rate of the treatment was evaluated. RESULTS The infection control time and Visual Analogue Scale score after treatment in the observation group were significantly lower than in the control group, respectively (P < 0.05). After the treatment, the serum levels of CRP, IL-6, IL-8, TNF-α, cortisol, epinephrine, norepinephrine, and glucose in each group were significantly lower than before the treatment (P < 0.05), and each index in observation was significantly lower than in the control group (P < 0.05). CONCLUSIONS In the treatment of open fractures complicated with soft tissue injury, cefazolin sodium pentahydrate combined with VSD can effectively reduce inflammation and stress, thus improving the treatment efficacy.
RESUMO OBJETIVO Investigar a eficácia clínica do cefazolin penta-hidrato de sódio combinado com drenagem por vedação a vácuo (VSD) no tratamento da fratura exposta complicada com lesão nos tecidos moles. MÉTODOS Sessenta e três doentes com fratura exposta complicada com lesões nos tecidos moles foram divididos em grupos de observação (n=33) e controle (n=30). Após redução cirúrgica, fixação e reparação da fratura, o grupo de controle foi tratado com VSD durante dez dias e o grupo de observação foi tratado com cefazolina penta-hidrato de sódio com base no VSD durante dez dias. O tempo de controle de infecção foi gravado. Após o tratamento, a dor dos doentes foi avaliada. Antes e após o tratamento, foram detectados os níveis séricos de proteína C-reativa (CRP), interleucina (IL)-6, IL -8, fator de necrose tumoral alfa (TNF-α), cortisol, epinefrina, norepinefrina e glicose. Após seis meses de tratamento, a taxa efetiva total de tratamento foi avaliada. RESULTADOS O tempo de controle da infecção e a pontuação da Escala Visual Analógica após o tratamento no grupo de observação foram significativamente inferiores ao do grupo de controle, respectivamente (P<0,05). Após o tratamento, os níveis séricos de CRP, IL-6, IL-8, TNF-α, cortisol, epinefrina, norepinefrina e glicose em cada grupo foram significativamente menores do que antes do tratamento, respectivamente (P<0,05), e cada índice de observação foi significativamente inferior ao do grupo de controle (P<0,05). CONCLUSÃO No tratamento da fratura exposta complicada com lesões nos tecidos moles, o cefazolin penta-hidrato de sódio combinado com VSD pode efetivamente reduzir a inflamação e o estresse, melhorando assim a eficácia do tratamento.
Subject(s)
Humans , Cefazolin/therapeutic use , Soft Tissue Injuries , Negative-Pressure Wound Therapy , Fractures, Open/therapy , Anti-Bacterial Agents/therapeutic use , Wound Healing , Drainage , Treatment OutcomeABSTRACT
Resumen Actualmente se recomienda el uso de cefazolina para determinar la susceptibilidad a cefalosporinas orales de primera generación en cepas de enterobacterias en ITU no complicada. Nuestro objetivo fue establecer la susceptibilidad a cefalosporinas orales en cepas urinarias según puntos de corte para cefalotina o cefazolina y la correlación de susceptibilidad entre cefazolina y cefadroxilo. Se estudió la concordancia entre cefalotina y cefazolina en 52 cepas por método de Kirby-Bauer y Vitek XL. En Escherichia coli fue de 0% para VitekXL y 50% para Kirby-Bauer. La concordancia entre cefazolina y cefadroxilo fue 95,6%. En el laboratorio debiera usarse cefazolina para determinar susceptibilidad a cefalosporinas orales de primera generación. La concordancia entre cefazolina y cefadroxilo sugiere que cefazolina podría predecir susceptibilidad para cefadroxilo.
Currently, the use of cefazolin is recommended to determine the susceptibility to first-generation oral cephalosporins in strains of enterobacteria in uncomplicated UTI. We determined susceptibility differences to oral cephalosporins in urinary strains according to cefazolin or cefalotin breakpoints and the correlation of susceptibility between cefazolin and cefadroxil. We studied 52 strains with cefalotin and cefazolin by disk-diffusion and MIC (Kirby-Bauer and Vitek XL) and a subgroup by disk-diffusion for cefadroxil. Agreement among different methods was 100% for K. pneumoniae and Proteus spp. In Escherichia coli, agreement for Vitek and disk-diffusion were 0 and 50% respectively. Susceptibility to first generation cephalosporins in E. coli should be determined with cefazolin. Agreement between cefazolin and cefadroxil suggests that cefazolin could also predict the susceptibility of cefadroxil.
Subject(s)
Humans , Cephalosporins/pharmacology , Enterobacteriaceae/drug effects , Anti-Bacterial Agents/pharmacology , Proteus/drug effects , Urinary Tract Infections/microbiology , Microbial Sensitivity Tests/methods , Cefadroxil/pharmacology , Cefazolin/pharmacology , Cephalosporins/classification , Cephalothin/pharmacology , Enterobacteriaceae/classification , Enterobacteriaceae Infections/microbiology , Escherichia coli/drug effects , Klebsiella pneumoniae/drug effectsABSTRACT
Las infecciones nosocomiales persisten elevadas en las unidades de cuidados intensivos neonatales, lo cual motiva el muy frecuente uso de antibióticos. Nuestro objetivo fue evaluar la eficacia de la cefazolina frente a la vancomicina como terapia inicial en los recién nacidos con signos clínicos presuntivos de sepsis nosocomial probablemente causada por Staphylococcus coagulasa negativo. Métodos. Se incluyeron recién nacidos hospitalizados con signos clínicos muy probables de sepsis bacteriana nosocomial. Dos grupos fueron asignados aleatoriamente según el antibiótico utilizado en el inicio del tratamiento: grupo cefazolina (GC) o grupo vancomicina (GV). El análisis primario se realizó mediante la intención de tratamiento. La medida principal de resultado fue la evolución clínica de los neonatos en ambos grupos al final del tratamiento. Resultados. Se analizaron 109 recién nacidos, 52 en el GC y 57 en el GV. Las características basales fueron similares entre los grupos. El porcentaje de recién nacidos con evolución clínica adecuada fue de 92% en el GC y de 86% en el GV: diferencia de 6% (95% CI: de -7% a 19%, valor p de no inferioridad, p= 0,007). En el GC, fallecieron 7 recién nacidos (13,5%) y 11, en el GV (19,2%), diferencia no significativa (p= 0,45). Conclusión. En recién nacidos con sepsis nosocomial confirmada o altamente probable, la cefazolina no fue inferior a la vancomicina en el logro de un resultado clínico adecuado.
ABSTRACT
Background The incidence of surgical site infection in bariatric patients is significant and the current recommendations for antibiotic prophylaxis are sometimes inadequate. Objective The aim of this study was to analyze the effect of three prophylactic antibiotic regimens on the incidence of surgical site infection. Methods A prospective, cross-sectional study was conducted between January 2009 and January 2013 in which 896 Roux-en-Y gastric bypasses were performed to treat obesity. The study compared three groups of patients according to the perioperative antibiotic prophylaxis administered intravenously and beginning at anesthesia induction: Group I consisting of 194 patients treated with two 3-g doses of ampicillin/sulbactam; Group II with 303 patients treated with a single 1-g dose of ertapenem; and Group III with 399 patients treated with a 2-g dose of cefazolin at anesthesia induction followed by a continuous infusion of cefazolin 1g throughout the surgical procedure. The rate of surgical site infection was analyzed, as well as its association with age, sex, preoperative weight, body mass index and comorbidities. Results The rates of surgical site infection were 4.16% in the group treated prophylactically with ampicillin/sulbactam, 1.98% in the ertapenem group and 1.55% in the continuous cefazolin group. Conclusion The prophylactic use of continuous cefazolin in surgeries for morbid obesity shows very promising results. These findings suggest that some prophylactic regimens need to be reconsidered and even substituted by more effective therapies for the prevention of surgical site infections in bariatric patients. .
Contexto A incidência de infecção de sítio cirúrgico em pacientes bariátricos é significativa e as recomendações atuais para a profilaxia antibiótica são por vezes inadequadas. Objetivo O objetivo deste estudo foi analisar o efeito de três esquemas de antibióticos profiláticos sobre a incidência de infecção de sítio cirúrgico. Método Estudo prospectivo, transversal, foi realizado entre janeiro de 2009 e janeiro de 2013, em que 896 derivações gástricas em Y de Roux foram realizadas para tratar a obesidade. O estudo comparou três grupos de pacientes de acordo com a profilaxia antibiótica administrada no perioperatória por via intravenosa, iniciada na indução anestésica: Grupo I constituído de 194 pacientes tratados com duas doses de 3 g de ampicilina/sulbactam; Grupo II com 303 pacientes tratados com uma única dose de 1 g de ertapenem; e Grupo III com 399 pacientes tratados com uma dose de 2 g de cefazolina no momento da indução da anestésica seguida de uma infusão contínua de cefazolina 1 g durante o procedimento cirúrgico. A taxa de infecção de sítio cirúrgico foi analisada, bem como a sua associação com a idade, sexo, peso pré-operatório, o índice de massa corporal e comorbidades. Resultados As taxas de infecção do sítio cirúrgico foram de 4,16% no grupo tratado profilaticamente com ampicilina/sulbactam, 1,98% no grupo de ertapenem e 1,55% no grupo de cefazolina contínua. Conclusão O uso profilático de cefazolina contínua em cirurgias para obesidade mórbida apresenta resultados muito promissores. Estes resultados sugerem que alguns regimes profiláticos precisam ser reconsiderados e até mesmo substituídos por terapias mais eficazes para a prevenção de infecções de sítio cirúrgico em pacientes bariátricos. .
Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Anti-Bacterial Agents/administration & dosage , Antibiotic Prophylaxis/methods , Gastric Bypass/methods , Surgical Wound Infection/prevention & control , Ampicillin/administration & dosage , Cross-Sectional Studies , Cefazolin/administration & dosage , Drug Therapy, Combination , Gastric Bypass/adverse effects , Infusions, Intravenous , Prospective Studies , Sulbactam/administration & dosage , beta-Lactams/administration & dosageABSTRACT
A 58-year-old female without cardiovascular risk factors, was going to be operated to repair the rotator cuff. Induction and interscalene brachial plexus block were uneventful, but after her placement for surgery the patient started with severe bronchospasm, hypotension, cutaneous allergic reaction and ST elevation on the electrocardiogram. An anaphylactic shock was suspected and treated but until the perfusion of nitroglycerina was started no electrocardiographic changes resolved. After necessary diagnostic test the final diagnosis was variant I of Kounis syndrome due to cefazolin and rocuronium. Ephinephrine is the cornerstone of treatment for anaphylaxis but should we use it if the anaphylactic reaction is also accompanied by myocardial ischemia? The answer is that we should not use it because myocardial ischemia in this syndrome is caused by vasospasm, so it would be more useful drugs such as nitroglycerin. But what if we do not know if it is a Kounis syndrome or not? In this article we report our experience that maybe could help you in a similar situation.
ABSTRACT
A 58-year-old female without cardiovascular risk factors, was going to be operated to repair the rotator cuff. Induction and interscalene brachial plexus block were uneventful, but after her placement for surgery the patient started with severe bronchospasm, hypotension, cutaneous allergic reaction and ST elevation on the electrocardiogram. An anaphylactic shock was suspected and treated but until the perfusion of nitroglycerina was started no electrocardiographic changes resolved. After necessary diagnostic test the final diagnosis was variant I of Kounis syndrome due to cefazolin and rocuronium. Ephinephrine is the cornerstone of treatment for anaphylaxis but should we use it if the anaphylactic reaction is also accompanied by myocardial ischemia? The answer is that we should not use it because myocardial ischemia in this syndrome is caused by vasospasm, so it would be more useful drugs such as nitroglycerin. But what if we do not know if it is a Kounis syndrome or not? In this article we report our experience that maybe could help you in a similar situation.
Subject(s)
Anaphylaxis/diagnosis , Coronary Vasospasm/drug therapy , Myocardial Ischemia/drug therapy , Nitroglycerin/administration & dosage , Androstanols/adverse effects , Cefazolin/adverse effects , Coronary Vasospasm/diagnosis , Coronary Vasospasm/etiology , Electrocardiography , Female , Humans , Middle Aged , Myocardial Ischemia/diagnosis , Myocardial Ischemia/etiology , Rocuronium , Rotator Cuff/surgery , Syndrome , Vasodilator Agents/administration & dosageABSTRACT
A 58-year-old female without cardiovascular risk factors, was going to be operated to repair the rotator cuff. Induction and interscalene brachial plexus block were uneventful, but after her placement for surgery the patient started with severe bronchospasm, hypotension, cutaneous allergic reaction and ST elevation on the electrocardiogram. An anaphylactic shock was suspected and treated but until the perfusion of nitroglycerina was started no electrocardiographic changes resolved. After necessary diagnostic test the final diagnosis was variant I of Kounis syndrome due to cefazolin and rocuronium. Ephinephrine is the cornerstone of treatment for anaphylaxis but should we use it if the anaphylactic reaction is also accompanied by myocardial ischemia? The answer is that we should not use it because myocardial ischemia in this syndrome is caused by vasospasm, so it would be more useful drugs such as nitroglycerin. But what if we do not know if it is a Kounis syndrome or not? In this article we report our experience that maybe could help you in a similar situation.
Paciente do sexo feminino, 58 anos, sem fator de risco cardiovascular, submetida a cirurgia para reparação do manguito rotador. A indução do bloqueio do plexo braquial interescalênico foi feita sem intercorrência, mas, após seu posicionamento para a cirurgia, a paciente apresentou broncoespasmo grave, hipotensão, reação alérgica cutânea e elevação do segmento ST ao eletrocardiograma. Houve suspeita de choque anafilático que foi tratado, mas até que a perfusão de nitroglicerina fosse iniciada não houve resolução das alterações eletrocardiográficas. Após teste diagnóstico necessário, o diagnóstico final foi de variante tipo I da síndrome de Kounis por causa de cefazolina e rocurônio. Epinefrina é a base sólida do tratamento para anafilaxia, mas devemos usá-la se a reação anafilática também for acompanhada de isquemia miocárdica? A resposta é que não devemos usá-la, porque a isquemia miocárdica nessa síndrome é causada por vasoespasmo; portanto, drogas como a nitroglicerina seriam mais úteis. Porém, e quando não sabemos se é ou não uma síndrome de Kounis? Neste artigo relatamos nossa experiência que, talvez, possa ajudar em uma situação similar.
Paciente del sexo femenino, 58 años de edad, sin factor de riesgo cardiovascular, sometida a cirugía para la reparación del manguito rotador. La inducción del bloqueo del plexo braquial interescalénico fue realizada sin intercurrencias, pero después de su posicionamiento para la cirugía, la paciente presentó broncoespasmo grave, hipotensión, reacción alérgica cutánea y elevación del segmento ST al electrocardiograma. Hubo sospecha de choque anafiláctico que fue tratado, pero hasta que la perfusión de nitroglicerina se iniciase no hubo resolución de las alteraciones electrocardiográficas. Después del test diagnóstico necesario, el diagnóstico final fue de variante tipo i del síndrome de Kounis debido a la cefazolina y al rocuronio. La epinefrina es la base sólida del tratamiento para la anafilaxia, pero ¿debemos usarla si la reacción anafiláctica también viene seguida de isquemia miocárdica? La respuesta es que no debemos usarla porque la isquemia miocárdica en ese síndrome está causada por el vasoespasmo; por tanto, fármacos como la nitroglicerina serían más útiles. Sin embargo, ¿y cuando no sabemos si es o no un síndrome de Kounis? En este artículo, relatamos nuestra experiencia que, tal vez, pueda ayudarle a usted a hacer frente a una situación similar.
Subject(s)
Female , Humans , Middle Aged , Anaphylaxis/diagnosis , Coronary Vasospasm/drug therapy , Myocardial Ischemia/drug therapy , Nitroglycerin/administration & dosage , Androstanols/adverse effects , Cefazolin/adverse effects , Coronary Vasospasm/diagnosis , Coronary Vasospasm/etiology , Electrocardiography , Myocardial Ischemia/diagnosis , Myocardial Ischemia/etiology , Rotator Cuff/surgery , Syndrome , Vasodilator Agents/administration & dosageABSTRACT
Determinar la efectividad de la dosis única comparada con la dosis triple de Cefazolina como profilaxis antibiótica para reducir las infecciones post-cesárea. Material y Métodos: Estudio observacional, analítico, retrospectivo, transversal y comparativo. Se incluyó 82 historias clínicas de pacientes sometidas a cesárea en el Hospital Nacional Guillermo Almenara Irigoyen que recibieron dosis única o dosis triple de Cefazolina en el año 2011. De acuerdo al esquema recibido, se evaluaron las complicaciones infecciosas. Resultados: No hubo diferencia estadísticamente significativa entre la dosis única y la dosis triple en la incidencia de infecciones totales (9,3% vs 16,4%, p= 0,422), infección del sitio operatorio (7% vs 12,8%, p= 0,793), endometritis (0% vs 2,6%, p= 1,116) e infección del tracto urinario (2,3% vs 0%, p= 0,918). Conclusión: La dosis única de Cefazolina como profilaxis antibiótica fue igual de efectiva como la dosis triple en la prevención de la morbilidad infecciosa post-cesárea...
To compare the effectiveness of single dose versus triple dose of Cefazolinas prophylactic antibiotics in women undergoing cesarean section. Material and Methods: An observational, analytic, retrospective, cross sectional comparative study. Eighty two medical records of women undergoing caesarean section who received either single dose or triple dose in the Almenara Irigoyen Hospital were included. Women were compared on the basis of development of postoperative infections. Results: The study groups did not have statistically significant differences in the incidence of total infections (9,3% vs 16,4%, p= 0,422), wound infections(7% vs 12,8%, p= 0,793), endometritis (0% vs 2,6%, p= 1,116) and urinary tract infection(2,3% vs 0%, p= 0,918). Conclusion: A single prophylaxis dose of Cefazolin was as effective as triple dose in preventing post-caesarean infectious morbidity...
Subject(s)
Humans , Cefazolin/therapeutic use , Cesarean Section , Post-Exposure Prophylaxis , Observational Study , Retrospective Studies , Cross-Sectional StudiesABSTRACT
A reversed-phase high performance liquid chromatography method was validated for the determination of cefazolin sodium in lyophilized powder for solution for injection to be applied for quality control in pharmaceutical industry. The liquid chromatography method was conducted on a Zorbax Eclipse Plus C18 column (250 x 4.6 mm, 5 μm), maintained at room temperature. The mobile phase consisted of purified water: acetonitrile (60: 40 v/v), adjusted to pH 8 with triethylamine. The flow rate was of 0.5 mL min-1 and effluents were monitored at 270 nm. The retention time for cefazolin sodium was 3.6 min. The method proved to be linear (r2=0.9999) over the concentration range of 30-80 µg mL-1. The selectivity of the method was proven through degradation studies. The method demonstrated satisfactory results for precision, accuracy, limits of detection and quantitation. The robustness of this method was evaluated using the Plackett–Burman fractional factorial experimental design with a matrix of 15 experiments and the statistical treatment proposed by Youden and Steiner. Finally, the proposed method could be also an advantageous option for the analysis of cefazolin sodium, contributing to improve the quality control and to assure the therapeutic efficacy.
Um método cromatográfico em fase reversa foi validado para a determinação de cefazolina sódica em pó liofilizado, a ser aplicado no controle de qualidade em indústrias farmacêuticas. O método por cromatografia líquida foi conduzido em coluna Zorbax Eclipse Plus C18 (250 × 4,6 mm, 5 µm) mantida à temperatura ambiente. A fase móvel consistiu de água purificada: acetonitrila (60 : 40 v/v), com o pH ajustado para 8 com trietilamina. A vazão usada foi de 0,5 mL min-1 e os analitos de interesse foram monitorizados a 270 nm. O tempo de retenção da cefazolina sódica foi de 3,6 min. As áreas dos picos de cefazolina sódica foram lineares na faixa de concentração de 30-80 µg mL-1 (r2 = 0,9999). A seletividade do método foi demonstrada através de estudos de degradação. O método demonstrou resultados satisfatórios para precisão, exatidão, limites de detecção e de quantificação. A robustez do método foi avaliada utilizando o esquema fatorial de Plackett-Burman com uma matriz de 15 experimentos simultâneos, e analisados por tratamento estatístico proposto por Youden e Steiner. Finalmente, o método proposto pode ser também uma opção de êxito para a análise de cefazolina sódica, contribuindo para o controle de qualidade e para garantir a eficácia terapêutica.
Subject(s)
Cefazolin/analysis , Chromatography, High Pressure Liquid/methods , Quality Control , Drug Industry/trends , Freeze Drying/methodsABSTRACT
OBJETIVO: Determinar o perfil epidemiológico das gestantes internadas por infecção do trato urinário, bem como verificar os agentes mais prevalentes e a resposta à antibioticoterapia. MÉTODOS: Estudo retrospectivo, que incluiu 106 gestantes internadas para tratamento de infecção do trato urinário no período entre janeiro de 2007 a dezembro de 2010. A avaliação constituiu-se de análise de prontuários dessas gestantes, observando-se informações sobre a internação e a gestação, bem como seu desfecho. Foi realizada a análise estatística por meio do programa Statistical Package for the Social Science, versão 15.0. Foram utilizados, para análise dos dados, o teste bilateral exato de Fisher e o teste t de Student, bem como métodos de estatística descritiva. RESULTADOS: Uroculturas positivas foram encontradas em 60,5% das gestantes internadas por infecção do trato urinário. O agente infeccioso mais frequente foi Escherichia coli e não houve diferença quanto à resistência, à recorrência ou a complicações entre os agentes etiológicos mais frequentes. Gestantes com infecção do trato urinário prévia tiveram maior risco de recorrência (OR=10,8; p<0,05). Os antibióticos mais frequentemente utilizados na internação foram ampicilina e cefazolina. Troca de esquema terapêutico por resistência bacteriana ocorreu em 11,9% das pacientes que usaram cefazolina e em 20% das que usaram ampicilina (OR=5,5; p<0,05). O índice de complicações gestacionais foi igual nos dois tratamentos. Não houve diferença entre as médias do número de dias de internação para os dois tratamentos. CONCLUSÃO: A ampicilina esteve associada a maior índice de resistência bacteriana que a cefazolina, necessitando de maior número de trocas do esquema terapêutico, sem resultar em diferença nos desfechos clínicos e tempo de internação.
PURPOSE: To determine the epidemiological profile of women admitted for urinary tract infection as well as to verify the most prevalent agents and response to antibiotic therapy. METHODS: A retrospective study of 106 pregnant women admitted to a university hospital for urinary tract infection treatment during the period between January 2007 to December 2010. The evaluation was based on analysis of the medical records of these pregnant women, with the observation of hospitalization and pregnancy data, as well as its outcome. Statistical analysis was performed using Statistical Package for the Social Science, version 15.0. The bilateral Fisher exact test and Student's t test were used for data analysis, as well as descriptive statistical methods. RESULTS: Positive urine cultures were observed in 60.5% of pregnant women admitted due to urinary tract infection. The most frequent infectious agent was Escherichia coli and no difference in resistance, recurrence or complications was observed between the most frequent etiologic agents. Pregnant women with previous UTI had a higher recurrence risk (OR=10.8; p<0.05). The antibiotics most commonly used during hospitalization were ampicillin and cefazolin. Change of therapeutic agent due to bacterial resistance occurred in 11.9% of patients who took cefazolin and in 20% of patients who took ampicillin (OR=5.5; p<0.05). The rate of gestational complications was the same for both treatments. There was no difference in mean number of days of hospitalization between the treatments. CONCLUSION: In the studied population ampicillin showed a higher rate of bacterial resistance than cefazolin, requiring a larger number of treatment regimen exchanges, without resulting in differences in clinical outcome or time of hospitalization.
Subject(s)
Adolescent , Adult , Female , Humans , Pregnancy , Young Adult , Anti-Bacterial Agents/therapeutic use , Pregnancy Complications, Infectious/drug therapy , Pyelonephritis/drug therapy , Pyelonephritis/microbiology , Urinary Tract Infections/drug therapy , Drug Resistance, Bacterial , Pregnancy Outcome , Retrospective Studies , Treatment OutcomeABSTRACT
Introdução: Infecções cirúrgicas são o segundo tipo mais frequente de infecção relacionada à assistência de saúde e tem sua incidência reduzida com a administração de antibioticoprofilaxia cirúrgica. Materiais e métodos: Foi realizado estudo transversal, de 01 de março a 30 de abril de 2010, observando-se a adequação do uso da cefazolina na profilaxia cirúrgica. A adequação foi avaliada conforme: 1. O tempo da primeira dose, 2. A dose utilizada, 3. Doses adicionais durante a cirurgia e 4. O tempo de manutenção do antimicrobiano após o procedimento. Resultados: Foram avaliadas 264 cirurgias com uso de cefazolina como antibioticoprofilaxia cirúrgica. Cirurgias limpas foram 85,6% da amostra, dessas 43,4% tinham implante de prótese. Todas as quatro etapas avaliadas estavam adequadas em 33,7% das cirurgias, e todas as etapas foram inadequadas em 2,3% das cirurgias. O tempo para a primeira dose estava correto em 66,3% dos procedimentos. Apenas um paciente teve administrada dose inadequada do antibiótico. Das cirurgias com mais de 3h de duração, em 46,5% foram realizadas doses adicionais da cefazolina. Quarenta e oito por cento dos pacientes receberam o antimicrobiano por mais de 24h. Em 6,1% destes pacientes foi feito o diagnóstico de infecção associada ao procedimento cirúrgico. Conclusão: Há uma baixa taxa de adequação da profilaxia cirúrgica com cefazolina no hospital. É necessária uma padronização desta profilaxia, com a instituição de um protocolo assistencial visando uniformizar as condutas para a prevenção da infecção de sítio cirúrgico no HCPA.
Aims: Surgical site infections are the second most frequent cause of healthcare associated infections, and their incidence is reduced with the administration of antimicrobial prophylaxis. Methods: This cross-sectional study, conducted from March 1 to April 30, 2010, evaluated adequacy and timeliness of cefazolin administration as surgical prophylaxis. Adequacy parameters were: (1) time to first dose; (2) cefazolin dose infused; (3) additional dose during surgery; and (4) duration of antimicrobial therapy after surgery. Results: Of a total of 264 surgeries evaluated, 85.6% were classified as clean, and prostheses were implanted in 43.4%. All steps of antimicrobial prophylaxis were adequate in 33.7% of the surgeries, and all steps were inadequate in 2.3%. Time to first dose was correct in 66.3% of the cases. Only one patient received an inadequate dose of the antimicrobial. Additional doses of cefazolin were administered in 46.5% of the surgeries that lasted more than 3 hours, and 48% of the patients received antimicrobial therapy for more than 24 hours. Surgical site infection was diagnosed in 6.1% of the patients. Conclusion: The rate of adequacy of surgical prophylaxis in the hospital was low. Standardized protocols and practices should be established to ensure adequate prevention of surgical site Infection in hospitals.
Subject(s)
Humans , Male , Female , Cefazolin/therapeutic use , Surgical Wound Infection , Antibiotic Prophylaxis , Cross-Sectional StudiesABSTRACT
Toda intervención quirúrgica está expuesta a infectarse. La necesidad de profilaxis antimicrobiana en cirugía ortopédica para casos quirúrgicos agudos o electivas de cirugías limpias ha sido establecida como procedimiento de rutina. En Cirugía Ortopédica y Traumatología cuando se requiere el uso de implantes metálicos con el fin de realizar osteosíntesis o sustitución de las superficies articulares, aumenta el riesgo de infección, por tratarse de materiales extraños que son introducidos en el organismo. En estos casos la antibióticoterapia preventiva es de primordial importancia. Se realizó un estudio de profilaxis antimicrobiana, multicéntrico, aleatorizado, prospectivo, doble ciego, comparativo de grupos paralelos, con el fin de evaluar la eficacia de Cefadroxilo I.V. Vs. Cefazolina I.V. como antibióticos profilácticos mediante la determinación del número de pacientes infectados en cirugía de fracturas cerradas en la cuales se colocó material de síntesis. Se completaron 58 pacientes, 34 en el grupo de cefadroxilo y 24 en el grupo de cefazolina, al inicio los grupos fueron similares en cuanto a edad, sexo, tipo de fractura, tiempo de intervención, tiempo entre la fractura y la intervención.Más pacientes en el grupo de cefadroxilo tenían el tiempo máximo autorizado entre la fractura y la intervención (p: 0,07). Se presentó en el grupo de cefadroxilo una infección de la herida operatoria y un caso de eritema leve que cedió con tratamiento oral con cefadroxilo, sin diferencias entre los grupos.Hubo tres casos de eventos adversos, reacción anafiláctica a las 48 horas en el grupo de cefazolina que ameritó finalización de protocolo y hematoma en miembro inferior derecho y, en el grupo de cefadroxilo, una elevación discreta de enzimas hepáticas. La respuesta terapéutica de profilaxis antimicrobianano mostró diferencia entre los grupos. El cefadroxilo es tan eficaz como la cefazolina para la profilaxis antimicrobiana en pacientes con fracturas...
Any operation is exposed to infection. The need for antimicrobial prophylaxis in orthopedic surgery for acute or elective surgical cases of clean surgery is established as a routine procedure. Orthopedic Surgery when required the use of metallic implants in order to perform internal fixation or replacement of the articular surfaces, increases the risk of infection because they are foreign materials are introduced into the body. In these cases, preventive antibiotic therapy is very important. We performed a study of antimicrobialprophylaxis multicenter, randomized, prospective, double-blind, parallel group comparison in order to evaluate the effectiveness of Cefadroxil IV vs. Cefazolin I.V. as prophylactic antibiotics by determining the number of infected patients after fracture surgery in which synthetic material was placed. Fifty eigth patients were completed, 34 in the cefadroxil group and 24 in the cefazolin group, at the beginning the groups were similar in age, sex, fracture type, operative time, time between fracture and surgery. More patients in the cefadroxil group had the maximum allo-wable time between the fracture and surgery. (P: 0.07). In the cefadroxil group we found a wound infection and one case of mild erythema which resolved with oral treatment with cefadroxil, without differences between groups. There were three cases of adverse events, anaphylactic reaction to cefazolin at 48 h in the group that required finalization of protocol and hematoma in right leg and in the cefadroxil group, a moderate increase in liver enzymes. The therapeutic response of antimicrobial prophylaxis showed no difference between groups. Cefadroxil is as effective as cefazolin for antimicrobial prophylaxis in patients with fractures that warrant placement of synthetic material
Subject(s)
Female , Cefadroxil/therapeutic use , Cefazolin/therapeutic use , Orthopedics/methods , Products with Antimicrobial Action , Antibiotic Prophylaxis/methodsABSTRACT
A canaliculite lacrimal é uma afecção rara, cujo principal agente etiológico é o Actinomyces israelii. Ela deve ser considerada como um diagnóstico diferencial nos casos de conjuntivite crônica recorrente. O objetivo deste estudo é relatar 3 casos de pacientes com canaliculite crônica supurativa e diferentes formas de tratamentos. O primeiro paciente apresentou uma canaliculite superior esquerda e foi tratado com uma canaliculotomia. Entretanto, o mesmo desenvolveu uma canaliculite inferior ipsilateral após 6 meses e foi submetido a um esquema de injeção intracanalicular de cefazolina fortificada com resultado satisfatório. O segundo paciente apresentou uma canaliculite inferior esquerda e foi tratado com uma canaliculotomia. O terceiro paciente teve uma canaliculite inferior esquerda e foi submetido a um esquema de injeção intracanalicular de cefazolina fortificada. Ambos obtiveram completa resolução dos sintomas e sinais. O presente estudo demonstra que a irrigação intracanalicular de cefazolina fortificada pode ser uma forma útil de tratamento de canaliculite crônica supurativa com sintomatologia mais branda. O maior benefício desta abordagem é evitar o traumatismo cirúrgico da canaliculotomia.
Lacrimal canaliculitis is a rare disease caused mainly by Actinomyces israelii. It should be regarded as a differential diagnosis of recurrent chronic conjunctivitis. The purpose of this study was to report 3 cases of chronic suppurative canaliculitis and different treatment options. The first patient presented with an upper left canaliculitis and was treated with a canaliculotomy. Nevertheless, he had an ipsilateral lower canaliculitis after 6 months and underwent intracanalicular injections of fortified cefazolin with complete remission. The second patient presented with a lower left canaliculitis and underwent a canaliculotomy. The third patient had a lower left canaliculitis and underwent intracanalicular injections of fortified cefazolin. Both achieved complete remission. The present article demonstrated that intracanalicular irrigation of fortified cefazolin may be a helpful treatment of chronic suppurative canaliculitis with mild symptoms and signs. The most important benefit of this approach is to avoid injury to the lacrimal canaliculus.
Subject(s)
Aged , Female , Humans , Male , Middle Aged , Anti-Bacterial Agents/therapeutic use , Cefazolin/therapeutic use , Dacryocystitis/therapy , Actinomyces/enzymology , Combined Modality Therapy , Dacryocystitis/microbiologyABSTRACT
Se efectuó un estudio descriptivo, longitudinal y observacional sobre los primeros 120 pacientes operados de hernia inguinal con la técnica de hernioplastia de Jean Rives en el Hospital General Docente Dr Juan Bruno Zayas Alfonso de Santiago de Cuba, desde enero de 2001 hasta igual mes de 2009. En la serie, 56,6 por ciento de sus integrantes eran hombres, con una edad media de 64,4 años; en tanto 50,8 por ciento del total presentaban hernias primarias, con predominio del estadio III-B de la clasificación de Nyhus. Como profilaxis antibiótica predominó la cefazolina (67,5 por ciento); y como material protésico, el polipropilene (73,3 por ciento). Se utilizó anestesia local y sedación en 56,6 por ciento de la casuística. Las complicaciones posoperatorias representaron 2,4 por ciento y no se produjo recurrencia herniaria. El mencionado procedimiento es seguro y eficaz para la reparación quirúrgica de las hernias inguinocrurales.
A descriptive, longitudinal, and observational study on the first 120 patients surgically treated due to inguinal hernia using Jean Rives´hernioplasty technique at Dr Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba was carried out from January, 2001 to January, 2009. In the series, 56,6 percent of its members were male, having a mean age of 64,4 years; meanwhile 50,8 percent out of the total had primary hernias, with a prevalence of III-B stage according to Nyhus classification. Cefazolin (67,5 percent) and polypropilene (73,3 percent) prevailed as antibiotic prophylaxis and prosthesis material, respectively. Local anesthesia and sedation were used in 56,6 percent of the case material. Postoperative complications represented 2,4 percent and no hernia recurrence was observed. The aforementioned procedure is safe and effective to carry out the reparative surgery of the inguinocrural hernias.
Subject(s)
Humans , Male , Female , Adult , Cefazolin , Hernia, Femoral/surgery , Hernia, Inguinal/surgery , Polypropylenes , Plastic Surgery Procedures , Epidemiology, Descriptive , Longitudinal Studies , Observational Studies as TopicABSTRACT
Se efectuó un estudio descriptivo, longitudinal y observacional sobre los primeros 120 pacientes operados de hernia inguinal con la técnica de hernioplastia de Jean Rives en el Hospital General Docente Dr Juan Bruno Zayas Alfonso de Santiago de Cuba, desde enero de 2001 hasta igual mes de 2009. En la serie, 56,6 por ciento de sus integrantes eran hombres, con una edad media de 64,4 años; en tanto 50,8 por ciento del total presentaban hernias primarias, con predominio del estadio III-B de la clasificación de Nyhus. Como profilaxis antibiótica predominó la cefazolina (67,5 por ciento); y como material protésico, el polipropilene (73,3 por ciento). Se utilizó anestesia local y sedación en 56,6 por ciento de la casuística. Las complicaciones posoperatorias representaron 2,4 por ciento y no se produjo recurrencia herniaria. El mencionado procedimiento es seguro y eficaz para la reparación quirúrgica de las hernias inguinocrurales(AU)
A descriptive, longitudinal, and observational study on the first 120 patients surgically treated due to inguinal hernia using Jean Rives´hernioplasty technique at Dr Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba was carried out from January, 2001 to January, 2009. In the series, 56,6 percent of its members were male, having a mean age of 64,4 years; meanwhile 50,8 percent out of the total had primary hernias, with a prevalence of III-B stage according to Nyhus classification. Cefazolin (67,5 percent) and polypropilene (73,3 percent) prevailed as antibiotic prophylaxis and prosthesis material, respectively. Local anesthesia and sedation were used in 56,6 percent of the case material. Postoperative complications represented 2,4 percent and no hernia recurrence was observed. The aforementioned procedure is safe and effective to carry out the reparative surgery of the inguinocrural hernias(AU)
Subject(s)
Humans , Male , Female , Adult , Hernia, Femoral/surgery , Hernia, Inguinal/surgery , Plastic Surgery Procedures , Cefazolin , Polypropylenes , Epidemiology, Descriptive , Longitudinal Studies , Observational Studies as TopicABSTRACT
OBJETIVO: comparar a eficácia do tinidazol e da cefazolina na antibioticoprofilaxia da morbidade febril e infecciosa pós-histerectomia vaginal e abdominal. MÉTODOS: estudo clínico randomizado, no qual as mulheres internadas para histerectomia foram aleatorizadas para um dos seguintes grupos de antibioticoprofilaxia: Grupo C (2 g de cefazolina EV na indução anestésica); Grupo T (2 g de tinidazol VO 12 horas antes da cirurgia); ou Grupo C+T (2 g de tinidazol VO 12 horas antes da cirurgia e 2 g de cefazolina EV na indução anestésica). Amostras cervicovaginais foram coletadas para culturas específicas e o diagnóstico de vaginose bacteriana (VB) foi baseado nos critérios de Amsel e Nugent. As pacientes foram reavaliadas sete e 30 dias após a cirurgia para sinais de morbidade febril e/ou infecciosa. Para avaliar as diferenças entre os três grupos, realizaram-se os testes do χ2 ou exato de Fisher com nível de significância de 5%. Calulou-se o poder da amostra (1-β) através do programa SAS. RESULTADOS: morbidade infecciosa sete dias após a histerectomia foi diagnosticada em 6,6% das mulheres, mas não houve diferença significativa na distribuição entre os três grupos estudados (p=0,12). Não diagnosticou-se morbidade febril ou infecciosa no pós-operatório imediato ou após 30 dias da cirurgia. A freqüência de VB no pré-operatório foi significativamente maior entre as mulheres submetidas à histerectomia vaginal do que naquelas submetidas à histerectomia abdominal (27 versus 7%, p=0,02). Também se observou freqüência maior de VB após 30 dias entre as mulheres submetidas à histerectomia vaginal (20 versus 8%), porém sem significância estatística (p=0,19). CONCLUSÕES: o uso do tinizadol, isoladamente ou em associação com cefazolina, não apresentou maior eficácia que o uso de apenas cefazolina na prevenção de morbidade febril ou infecciosa pós-histerectomia...
PURPOSE: to compare the efficacy of tinidazole and cephazolin on the febrile and infectious morbidity of post vaginal and abdominal hysterectomy antibiotic prophylaxis. METHODS: randomized clinical study, where women admitted to hospital for hysterectomy were randomly allocated in one of the following antibiotic prophylaxis groups: Group C (2 g of IV cephazolin in the anesthetic induction); Group T (2 g of tinidazole orally, 12 hours before the surgery); or Group C+T (2 g of tinidazole orally 12 hours before the surgery and 2g of IV cephazolin in the anesthetic induction). Cervicovaginal smears were collected for specific cultures and the diagnosis of bacterial vaginosis (BV) was based in Amsel and Nugent's criteria. The patients were reevaluated 7 and 30 days after the surgery for signs of febrile and/or infectious morbidity. The χ2 or the Fisher's exact test was used to assess differences among the three groups, with a significance level of 5%. The sample power (1-β) was calculated through the SAS program. RESULTS: seven days after the hysterectomy, infectious morbidity was diagnosed in 6.6% of the women, but with no significant difference among the three groups studied (p=0.12). There was no febrile or infectious morbidity at the immediate post-surgical period or after 30 days from the surgery. BV ratio at the pre-surgical period was significantly higher among the women submitted to vaginal hysterectomy, rather than among the ones submitted to abdominal hysterectomy (27 versus 7%, p=0.02). BV ratio was also higher after 30 days, among the women submitted to vaginal hysterectomy (20 versus 8%), though without statistical significance (p=0.19). CONCLUSIONS: the use of tinidazole, isolated or associated with cephazolin has not presented higher efficacy, than the use of cephazolin, alone to prevent febrile or infectious morbidity post hysterectomy...
Subject(s)
Humans , Female , Adult , Middle Aged , Antibiotic Prophylaxis , Cefazolin , Hysterectomy , Tinidazole , Vaginosis, BacterialABSTRACT
Se realizó un estudio del uso de antibióticos aminoglucósidos en 70 pacientes con diagnóstico de infección respiratoria baja. Se demostró la poca efectividad de estos antimicrobianos en nuestra investigación. Se efectuó un análisis de los costos de tiempo hospitalario y antibióticos empleados en 50 casos que adquirieron la infección en la comunidad y se comparó con un grupo de 50 pacientes con el mismo diagnóstico tratados con cefazolina. Se obtuvieron resultados significativos en cuanto a la eficacia, disminución de la estadía y costo hospitalarios así como el consumo de antibióticos. En nuestro trabajo se determinó que con el uso de la cefazolina se logró un ahorro considerable de $ 11 055,98.
A study on the use of aminoglycoside antibiotics was conducted among 70 patients with diagnosis of low respiratory infection. The low effectiveness of these antimicrobial drugs was proved in this research. It was made an analysis of the hospital stay costs and of the antibiotics used in 50 cases that got infected in the community. It was also made a comparison with a group of 50 patients with the same diagnosis treated with cefazolin. Significant results were obtained concerning efficacy, and the reduction of hospital stay and cost, and of antibiotics consumption. A considerable saving of $ 11 055.98 was attained with the use of cefazolin.
ABSTRACT
Se realizó un estudio prospectivo de la efectividad de la cefazolina como antibiótico profiláctico perioperatorio en operaciones de cirugía estética, para contribuir a disminuir las infecciones posoperatorias, pues una cicatrización deficiente o inadecuada constituiría el fracaso total de la operación. El mayor porcentaje de intervenciones quirúrgicas correspondió a las hipertrofias mamarias con el 67,5 % y la deformidad abdominal sólo en el 32,5 %. La tasa de infección para el grupo control resultó ser del 20 %, mientras que con la aplicación de la profilaxis perioperatoria de 2,5 %. El empleo de este antibiótico demostró gran efectividad frente a las bacterias habituales que causan infección en las heridas; con él se obtuvieron excelentes resultados y ventajas económicas.
A prospective study on the effectiveness of cefazolin as a perioperative prophylactic antibiotic in cosmetic surgery was conducted to contribute to reduce postoperative infections, since a deficient or inadequate cicatrization would lead to the total failure of the operation. The higher percentage of surgical procedures corresponded to breast hypertrophies with 67.5 %, and only 32.5 % to abdominal deformities. The infection rate for the control group was 20 %, whereas with the application of perioperative prophylaxis it was just 2.5 %. This antibiotic proved to be highly effective against those bacteria that usually cause wound infection. Excellent results and economic advantages were attained with its use.