Diagnostic value of prognostic nutritional index and C-reactive protein to albumin ratio in Crohn′s disease complicated with intra-abdominal infection / 中华消化杂志

Objective:To investigate the diagnostic value of prognostic nutritional index (PNI) and C-reactive protein to albumin ratio(CAR) in Crohn′s disease complicated with intra-abdominal infection (CD-IAI).Methods:From January 2016 to December 2021, the clinical data of 61 patients with Crohn′s disease (CD) and 61 patients with CD-IAI diagnosed at Nanfang Hospital, Southern Medical University were retrospectively analyzed. Crohn′s disease activity index (CDAI), Crohn′s disease endoscopic index of severity (CDEIS), laboratory parameters(white blood cell count, neutrophil ratio, platelet count, C-reactive protein (CRP), procalcitonin (PCT), D-dimer, prothrombin time (PT), fibrinogen, activated partial thromboplastin time (APTT)), PNI and CAR were compared between CD patients and CD-IAI patients. From January to May in 2022 another 30 patients with CD and 13 patients with CD-IAI diagnosed at Nanfang Hospital, Southern Medical University were selected to verify the accuracy of PNI and CAR in predicting CD-IAI. The optimal cut-off values of PNI and CAR in predicting CD-IAI, area under the curve (AUC), Youden index, sensitivity and specificity were calculated by receiver operating characteristic curve (ROC). Spearman correlation was used to analyze the correlation between PNI, CAR, CDAI, and CDEIS, and logistic regression was performed to analyze the influencing factors of CD-IAI. Independent sample t test and Mann-Whitney U test were used for statistical analysis. Results:CDAI and CDEIS were higher in CD-IAI patients than those of CD patients(256.68±8.50 vs.144.87±7.83; 3.80 (1.80, 5.40) vs. 1.20 (0.20, 2.80)), and the differences were statistically significant( t=-9.67, Z=-4.02, both P<0.001). The white blood cell count, neutrophil ratio, platelet count, CRP, PCT, D-dimer, PT, fibrinogen, and APTT of CD-IAI patients were all higher than those of CD patients (7.81×10 9/L (5.98×10 9/L, 11.39×10 9/L) vs. 5.94×10 9/L (4.86×10 9/L, 7.11×10 9/L); (73.43±10.67)% vs. (62.30±11.03)%; 360.00×10 9/L (266.50×10 9/L, 456.00×10 9/L) vs. 294.00×10 9/L (222.50×10 9/L, 356.00×10 9/L); 44.27 mg/L (16.82 mg/L, 82.65 mg/L) vs. 3.42 mg/L (0.59 mg/L, 18.33 mg/L); 0.07 μg/L (0.04 μg/L, 0.22 μg/L) vs. 0.04 μg/L (0.02 μg/L, 0.05 μg/L); 0.75 mg/L (0.32 mg/L, 2.00 mg/L) vs. 0.26 mg/L (0.15 mg/L, 0.46 mg/L); 11.90 s (11.40 s, 12.90 s) vs. 11.20 s (10.45 s, 11.70 s); 4.58 g/L (3.59 g/L, 5.59 g/L) vs. 2.99 g/L (2.17 g/L, 4.23 g/L); 30.40 s (28.30 s, 32.80 s) vs. 28.00 s (25.45 s, 31.10 s)), and the differences were statistically significant ( Z=-4.48; t=-5.66; Z=-2.71, -6.47, -3.78, -4.87, -4.87, -5.44 and -2.74; all P<0.01). The serum albumin level of CD-IAI patients was lower than that of CD patients (34.10 g/L (31.40 g/L, 36.90 g/L) vs. 39.00 g/L (35.10 g/L, 43.20 g/L)), and the difference was statistically significant( Z=-3.91, P<0.001). The PNI of CD-IAI patients was lower than that of CD patients (41.65, (38.58, 44.58) vs. 47.80 (40.45, 52.98)), while CAR was higher than that of CD patients (1.29 (0.48, 2.67) vs. 0.10 (0.01, 0.46)), and the differences were statistically significant ( Z=-3.83 and -6.44, both P<0.001). The results of Spearman correlation analysis showed that PNI was negatively correlated with CAR, CDAI, and CDEIS ( r=-0.64, -0.53 and -0.50, all P<0.001), and CAR was positively correlated with CDAI and CDEIS ( r=0.63 and 0.52, both P<0.001). The results of logistic regression analysis showed that high level of PNI was a protective factor for CD-IAI ( OR= 0.911, 95% confidence interval 0.864 to 0.961), and high level of CAR was a risk factor for CD-IAI ( OR=2.846, 95% confidence interval 1.745 to 4.644). The results of ROC indicated that the AUC value of combined PNI and CAR in the diagnosis of CD-IAI was 0.829 ( P<0.001), Youden index was 0.541, the sensitivity was 0.934, and the specificity was 0.607. The sensitivity and specificity of optimal cut-off value of the combination of PNI and CAR in predicting CD-IAI were 0.692 and 0.967. Conclusions:PNI and CAR have certain diagnostic value in CD-IAI. The risk of CD-IAI is high when PNI <45.550 and CAR >0.466.

Consensus Recommendations Based on Evidence for Abdominal Sepsis in the Pediatric and Adult Population of Colombia / Consenso colombiano de la sepsis abdominal en la poblacion pediatrica y de adultos: Recomendaciones basadas en la evidencia

Abstract Intra-abdominal infections are frequent at all levels of health care, therefore, it is necessary to maintain a high level of clinical suspicion, performing the fastest and most cost-effective measures to confirm the diagnosis and offer a precise and targeted multidisciplinary therapy, this being the only way to have an impact on the morbidity of this infection, reducing mortality and minimizing the complications and costs of health care. Intra-abdominal infections are linked to the appearance and selection of resistant mutants in both bacteria and fungi, becoming currently a major public health problem. Increasing bacterial resistance when associated with a greater possibility of difficulties in antimicrobial treatment increases mortality. This evidence-based consensus brings together the recommendations for the diagnosis and treatment of intra-abdominal infections in the pediatric and adult population. With strict monitoring of bacterial resistance and stimulating the control of the risk factors that have the greatest impact on the appearance of this phenomenon, this consensus is intended to be a practical guide that is easy to implement, and with periodic updates it will favor and facilitate multidisciplinary and the adequacy of the therapeutic management of intra-abdominal infections.

Resumen Las infecciones intrabdominales son frecuentes en todos los niveles de atención en salud, por ende, es necesario mantener un alto nivel de sospecha clínica, realizando las medidas más rápidas y costoefectivas para confirmar el diagnóstico y así ofrecer de una forma precisa y dirigida la terapéutica multidisciplinaria, siendo esta la única manera de tener impacto en la morbilidad de esta infección, disminuyendo la mortalidad y minimizando las complicaciones y los costos de la atención en salud. Las infecciones intrabdominales se encuentran ligadas a la aparición y selección de las mutantes resistentes tanto en las bacterias como en los hongos, convirtiéndose en la actualidad en una gran problemática en la salud pública. La creciente resistencia bacteriana al asociarse a mayor posibilidad de dificultades en el tratamiento antimicrobiano incrementa la mortalidad. Este consenso basado en la evidencia, reúne las recomendaciones en el diagnóstico y en el tratamiento de las infecciones intrabdominales en la población pediátrica y de adultos. Con un estricto seguimiento de la resistencia bacteriana y estimulando el control de los factores de riesgo que tienen mas impacto en la aparición de este fenómeno, este consenso pretende ser una practica guía de fácil implementación, y con periódicas actualizaciones favorecerá y facilitará el manejo multidisciplinario y la adecuación del manejo terapéutico de las infecciones intrabdominales.

Intestinal flora as the potential target for nutritional support treatment in abdominal infection and its clinical significance / 中华消化外科杂志

Intra-abdominal infections (IAIs) are common in the clinical practice, which include a variety of patholo-gical conditions. Severe IAIs can lead to sepsis, secondary organ dysfunction, and threaten the lives of patients. Patients with IAIs are under a high metabolic reaction, and often have gastrointestinal dysfunction, manifesting as impaired intestinal mucosal barrier function, out of control in intestinal flora regulation, and continuous loss of nutrients. The body is in a malnutrition condition, and body resistance severely declines, which further aggravates disease progression. Intestinal micro-ecology is the largest and most complex ecosystem in the human body. In the case of coexistence of many bacteria, the synergy and antagonism between different strains maintain the balance of digestive tract microecology. Intestinal flora and nutritional status under IAIs have their particularity. Understanding the mechanism of intestinal flora abnormalities under IAIs, reasonable and effective nutritional support treatment and management is essential for improving the prognosis of patients with IAIs.

Intestinal flora as the potential target for nutritional support treatment in abdominal infection and its clinical significance / 中华消化外科杂志

Intra-abdominal infections (IAIs) are common in the clinical practice,which include a variety of pathological conditions.Severe IAIs can lead to sepsis,secondary organ dysfunction,and threaten the lives of patients.Patients with IAIs are under a high metabolic reaction,and often have gastrointestinal dysfunction,manifesting as impaired intestinal mucosal barrier function,out of control in intestinal flora regulation,and continuous loss of nutrients.The body is in a malnutrition condition,and body resistance severely declines,which further aggravates disease progression.Intestinal micro-ecology is the largest and most complex ecosystem in the human body.In the case of coexistence of many bacteria,the synergy and antagonism between different strains maintain the balance of digestive tract microecology.Intestinal flora and nutritional status under IAIs have their particularity.Understanding the mechanism of intestinal flora abnormalities under IAIs,reasonable and effective nutritional support treatment and management is essential for improving the prognosis of patients with IAIs.

Prognosis of patients with secondary organ dysfunction caused by intra-abdominal infections / 中国实用外科杂志

OBJECTIVE: To analyze the clinical characteristics and prognosis of patients with organ dysfunction secondary to intra-abdominal infections(IAIs).METHODS: 606 patients with organ dysfunction secondary to IAIs who admitted to the First Affiliated Hospital of Xi' an Jiaotong University from January 2014 to December 2017 were recruited for retrospective analysis.Demographic,treatment and outcome data of all patients were collected.Incidence,mortality,treatment and risk factors were adopted for reveal the prevalence of organ dysfunction secondary to IAIs.RESULTS: The morbidity and mortality of patients with organ dysfunction secondary to IAIs were 40.6% and 14.7%,respectively.The mortality rate increased with the number of dysfunctional organs.The univariate analysis results indicated that the number of dysfunctional organs,location of primary infection,continuous renal replacement therapy(CRRT) treatment,artificial liver support,presence of comorbidities,acute physiology and chronic health status(APACHEII)score,sequential organ failure(SOFA)score were associated with the prognosis.The multivariate analysis results showed that the number of dysfunctional organs,artificial liver support,APACHE Ⅱ score and SOFA score were risk factors for the prognosis of patients with organ dysfunction secondary to IAIs.CONCLUSION: The morbidity and mortality of organ dysfunction in IAIs were high.The number of dysfunctional organs,artificial liver support,APACHE Ⅱscore and SOFA score were risk factors for the prognosis of patients with organ dysfunction secondary to IAIs.

The predictive value of PNI for post-operative intra-abdominal infections in gerontal liver cancer patients / 中国实用外科杂志

OBJECTIVE: To investigate the predictive significance of prognostic nutritional index(PNI)for intraabdominal infections(IAIs)in gerontal liver cancer patients who received hepatectomy.METHODS: The clinical data of270 gerontal(age≥60 y)patients with primary liver cancer(PLC)who received hepatectomy in the First Affiliated Hospital of Xi' an Jiaotong University were retrospectively analyzed.Receiver operating characteristic curve(ROC),multivariate analysis and survival curve were used to conduct the predictive significance of preoperative PNI for IAIs.RESULTS: The incidence of IAIs was 12.59%(34/270)in this cohort.The cut-off value of preoperative PNI for the prediction of postoperative IAIs was 47.58(P0.05).CONCLUSION: Preoperative PNI determination has predictive value for postoperative IAIs in gerontal liver cancer patients who received hepatectomy.

Presentation of the concept of "pan-complicated IAIs" and the discussion of the strategy of its diagnosis and treatment / 中国实用外科杂志

Intra-abdominal infections(IAIs)is common in the clinic which includes a variety of pathological conditions,ranging from uncomplicated appendicitis to fecal peritonitis.IAIs can be classified as healthcare-associated IAIs and community-acquired IAIs according to the circumstance of origin.IAIs can be also classified as uncomplicated IAIs and complicated IAIs according to the extent of infection.However,the circumstance of origin and extent of infection can't predict the therapy difficulty and clinical outcome.So,the authors first propose the new concept of "pan-complicated IAIs" and elaborate its clinical significance which may evoke the interest of clinicians to pay close attention to the diagnosis and treatment of IAIs.

Nutrition support for critical patients with intraabdominal infections / 中国实用外科杂志

Nutrition support is an important part of the therapy for critical patients with intra-abdominal infections.How to perform optimal nutrition support is crucial to improve the success rate of treatment for critical patients with intraabdominal infection.In general,proper energy and nutrient substrates and right timing and approach should be providedto maximize the benefits of nutrition support for critical patients with intra-abdominal infection according to the metabolic characteristics,gastrointestinal function and nutritional status.

Management of organ dysfunction in patients with abdominal sepsis / 中国实用外科杂志

Intra-abdominal infections is a common complication of acute abdominal surgery,and the important causes of mortality and morbidity in the patients with septic shock and IAH or ACS,which additionally induce ARDS,AKI,acute gastrointestinal injury,brain and coagulation dysfunction and so on.Early optimal management of intra-abdominal infections in critically ill patient includes early resuscitation and physiologic organ support combined with appropriate monitoring and evaluation.

Basic principles, controversy and consensus on the use of antibiotics in the treatment of abdominal infection / 中国实用外科杂志

Complicated intra-abdominal infections(cIAIs)remain a majorchallenge in clinical practice.In addition to significant morbidity and mortality for patients,they consume substantial hospitalresources.It is compounded by the aging of thepopulation and the burden of chronic disease in these patients,as well as the increased prevalence of resistantbacteria in both the healthcare setting and the community.Besides timely effective source control and fluid resuscitation,rational use of antimicrobials isanintegral part of good clinical practice.Once cIAIs are suspected or diagnosed,anti-infective treatment should be given as soon as possible.At this time,empirical antiinfective treatment is particularly important due to the lack of microbial culture and drug susceptibility results.In the process of anti-infective treatment,the application of anti-infective drugs can be adjusted according to the culture of pathogens and the results of drug sensitivity experiments.

Technical difficulties and countermeasures in the source control of intra-abdominal sepsis / 中国实用外科杂志

Source control of intra-abdominal infections is an important part in the treatment of intra-abdominal sepsis,which mainly includes drainage,elimination of necrotic tissue,control of sepsis as well as restoration of anatomy and function of gastrointestinal tract.Source control should be taken immediately after ascertaining intra-abdominal infections.Specific measures of source control include percutaneous drainage,surgery,open abdomen and antimicrobial therapy.The key to percutaneous drainage is accurate location and adequate drainage.When performing surgical drainage,extent of trauma should be restricted while accurate location and avoiding omissions.Accurate timing of open abdomenand definitive abdominal closure,proper selection of temporary abdominal closure method,avoiding complications of OA,and enteral nutrition are essentials of successful definitive abdominal closure and reduction of complications.Effective antimicrobial therapy relies on time,type selection and avoiding antibiotic abuse.Factors should be searched for rigorously after failure to control intra-abdominal sepsis.Comprehensive global treatment is not only the basis but also the countermeasure of source control.

Escalation surgical therapy approaches for complicated intra-abdominal infection / 中国实用外科杂志

Complicated intra-abdominal infections(cIAIs)is always associated with high mortality,invasive open surgery cannot improve patients' prognosis.With the spread of the concept of minimally invasive surgery(MIS)and damage control surgery(DCS),the authors propose the escalation surgical therapy approaches to better manage cIAIs with less operative damange.These approaches include minimally invasive drainage(percutaneous drainage,endoscopic drainage),MIS(minimally invasive operative drainage,enterostomy)and open surgery(relaparotomy on demand,planned relaparotomy,open abdomen).These treatments cause increasing trauma stress,longer recovery period and higher morbidity rates to patients successively.Due to the increased use of planned relaparotomy in treating cIAIs,abdominal packing and open abdomen were applied more frequently.However,the prevention of open abdomen-associated morbidies,including enterocutaneous fistula and abdominal wall defect,should be paid attention to.In clinical practice,use of escalation surgical therapy approaches to treat cIAIs is not fixed,doctors should choose appropriate management according to patients' conditions.Meanwhile,good resuscitation,appropriate choice of antibiotics and nutritional support are essential to improve the outcome of patients with cIAIs.

New concept of diagnosis and treatment of intra-abdominal infections:consensus and controversies / 中国实用外科杂志

The incidence of intra-abdominal infections(IAIs)is increasing theses years which receives more and more attention in the clinic.Especially the complicated IAIs,post-operative IAIs,intra-abdominal candidiasis and abdominal sepsis get an unacceptably high mortality,which is the most difficult and dispirited for the clinicians.How to recognize these IAIs and implement adequate treatment in the early time are the keys to improve the prognosis.Early diagnosis and accurate classification are the keys to assess the severity.Effectiveinfection source control is the core of treatment.For the IAIs accompany with organ dysfunction,surgeon-predominant IAIs multiple disciplinary team(MDT)should be establish to improve the diagnosis and treatment of IAIs.

Management of an Open Abdomen Considering Trauma and Abdominal Sepsis: A Single-Center Experience

PURPOSE: To describe the experience of patients over a 7-year period who have had open abdomen (OA) surgery, at a tertiary university hospital.METHODS: The medical records of 59 patients, who were managed with OA after a laparotomy between March 2009 and December 2015, were reviewed retrospectively. The data collected included demographics, indication for OA, abdominal closure methods, abdominal closure rate, the intensive care unit stay duration, mechanical ventilation duration, hospital stay duration, and complications.RESULTS: Forty-seven patients (37 males, 78.7%) with a mean age of 52.2 ± 16.7 years were reviewed in the study. The indications for OA were traumatic intra-abdominal bleeding in 23 patients (48.9%), non-traumatic bowel perforation in 10 (21.3%), non-traumatic bleeding in 7 (14.9%), and bowel infarction in 6 (12.8%). The abdominal wall was closed in 38 patients (80.9%). Primary closures and fascial closure using an artificial mesh were performed on 21 (44.7%) and 12 patients (25.5%), respectively. The median number of dressing changes was 0 (interquartile range 0 – 1). The median duration of the intensive care unit and hospital stays were 12.0 and 32.0 days, respectively. The median interval to abdominal closure was 4 days (interquartile range 2 – 10.3 days). Twenty-seven patients developed complications, including uncontrolled sepsis (21.3%), entero-atmospheric fistula (19.1%), ventral hernia (8.5%), bleeding (4.3%), and lateralization (4.3%). The mortality rate was 44.7% with sepsis being the main cause of death (61.9%).CONCLUSION: Traumatic intra-abdominal bleeding was a common indication for OA. Primary closure was performed in most patients, and frequent complications resulted in poor patient outcomes.

Infecciones intraabdominales: Puesta al día y recomendaciones de la sociedad Argentina de infectología / Intra-abdominal infections. Update and recommendations

Las infecciones intraabdominales constituyen un grupo de procesos intra y retroperitoneales, desde cuadros localizados hasta infecciones complicadas, sepsis o shock séptico, con elevada mortalidad. Representan la tercera causa de sepsis y la segunda causa de muerte en unidades de terapia intensiva. El tratamiento antimicrobiano debe iniciarse lo antes posible, especialmente en pacientes en estado crítico, pero también es fundamental el procedimiento de control del foco. Dada la importancia del tema, representantes de la Sociedad Argentina de Infectología junto con especialistas en Terapia Intensiva elaboraron estas recomendaciones sobre su diagnóstico, tratamiento y prevención. A tal fin, revisaron y analizaron la bibliografía publicada sobre el tema en los últimos 10 años, además de la opinión de expertos y datos locales. El documento ofrece herramientas básicas de diagnóstico basadas en criterios clínicos y microbiológicos, orientación sobre esquemas antibióticos empíricos y dirigidos según foco de origen, lugar de adquisición (comunidad o asociadas al cuidado de la salud) y gravedad de la infección, duración del tratamiento, importancia del control del foco y medidas preventivas para reducir el riesgo de infección del sitio quirúrgico. Asimismo, se presenta un algoritmo sencillo de diagnóstico y tratamiento para uso en la actividad asistencial. El trabajo pone en evidencia la preocupación por el tratamiento de las infecciones intraabdominales, estableciendo pautas locales para mejorar su diagnóstico, tratamiento y prevención, con el objeto de disminuir morbimortalidad, días de internación, costos y resistencia antimicrobiana.

Intra-abdominal infections represent a group of intra and retroperitoneal processes, ranging from localized infections to complicated ones, sepsis and septic shock, associated with a significant mortality rate. They are the third most commonly identified cause of sepsis and the second cause of death in the intensive care unit. Although antimicrobial therapy must be started as soon as possible, especially in critically ill patients, the source control procedure is highly relevant. On account of the importance of this subject, members of the Argentine Society of Infectious Diseases (SADI) and intensive care specialists joined to develop recommendations on diagnosis, treatment, and prevention of intra-abdominal infections. The literature published within the last 10 years was reviewed and analyzed, in addition of expert opinions and local data. This statement provides a basic tool for diagnosis based on clinical and microbiological criteria, orientation on empirical antimicrobial therapy schemes according to source, acquisition place (community or healthcare associated infections), infection severity, treatment duration, importance of source control, and preventive measures aimed to reduce surgical site infection risk. Likewise, it provides a simple algorithm for diagnosis and treatment for use in clinical practice. The work reveals the concern about the management of intra-abdominal infections, establishing local guidelines to optimize diagnosis, treatment and prevention, with the aim of reducing morbidity, mortality, length of stay, costs and antimicrobial resistance.

Efficacy and safety of ceftazidime-avibactam in the treatment of complicated intra-abdominal infections (CIAIs) and complicated urinary tract infections (CUTIs): A meta-analysis of randomized controlled trials

Summary Objective: The aim of this study was to assess the efficacy and safety of ceftazidime-avibactam in the treatment of complicated intra-abdominal infections (CIAIs) and complicated urinary tract infections (CUTIs) with meta-analysis method. Method: We included six randomized clinical trials identified from Medline, Embase, Cochrane Library, "ISRCTN Register" and "ClinicalTrials.gov" which compared ceftazidime-avibactam with comparison group. The meta-analysis was performed using Review Manager software version 5.3. Results: Ceftazidime-avibactam versus active comparisons demonstrated a statistically significant higher rate of microbiological response success on microbiological evaluable populations at the test-of-cure visit (95CI 1.10-2.38, p=0.02) and late-follow-up visit (95CI 1.09-2.23, p=0.02) for the treatment of CUTIs. Ceftazidime-avibactam versus active comparisons demonstrated a statistically significant higher rate of microbiological response success on EME populations at the test-of-cure visit (95CI 1.08-4.27, p=0.03) and late-follow-up visit (OR=1.75, 95CI 1.33-2.29, p<0.0001) for the treatment of CUTIs. Similar results were obtained at the late-follow-up visit (OR = 1.58, 95CI 1.26-1.97, p<0.0001) on microbiologically modified intent-to-treat (mMITT) populations for the treatment of CUTIs. We can find better eradication rates for E. coli and Klebsiella pneumoniae based on mMITT populations. In terms of AEs, SAEs and mortality, ceftazidime-avibactam had a safety and tolerability profile broadly similar to the comparison group. Conclusion: This meta-analysis provides evidence of the efficacy of ceftazidime-avibactam as a potential alternative for the treatment of patients with CUTIs, and CIAIs.

Effects of tigecycline on immune function in patients with complicated abdominal infection / 安徽医科大学学报

Objective To study the effects of tigecycline on immune function in patients with complicated intra-abdominal infections (cIAI). Methods A total of 24 cIAI patients received treatment of tigecycline, and then the effects of tigecycline on level of peripheral blood monouclear cells (PBMC) proliferation, concentration of inflammatory cytokines, and expression of CD3, CD4 and CD8 were investigated. Results The total effective rates of tigecycline were 70. 8％. Tigecycline treatment significantly reduced proliferative level of PBMC, decreased the levels of interleukin-1β (IL-1β), IL-6 and IL-8 in supernatants of PBMC cultures as well as serum. Moreover, tigecycline therapy significantly up-regulated the percentage of CD3 + and CD4 +, increased the ratio of CD4+ / CD8 +, and down-regulated percentage of CD8 + in peripheral blood. Conclusion Tigecycline could regulate immune function in cIAI patients.

Etiología aerobia de apendicitis aguda en adultos: Estudio multicéntrico de la sepsis abdominal en Argentina / Aerobic etiology of acute appendicitis in adults. Multicenter study of abdominal sepsis in Argentina

El tratamiento antibiótico de las apendicitis agudas se decide empíricamente basándose en la información epidemiológica. Las resistencias son variables entre regiones y los datos de Argentina son escasos. En el contexto de un estudio multicéntrico, observacional, de infecciones abdominales, se efectuó el análisis de los pacientes adultos con diagnóstico de apendicitis, incorporados al estudio entre enero 2014 y junio 2015, en 16 centros de 5 provincias argentinas. El objetivo fue analizar los gérmenes aeróbicos prevalentes, su resistencia a antibióticos y el patrón de prescripción antimicrobiana. Se estudiaron 131 apendicitis. Se aislaron 184 bacterias aerobias (1.4 bacterias/episodio): Escherichia coli 106 (57.6%), Klebsiella spp 16 (8.7%), Pseudomonas aeruginosa 19 (10.3%), Enterobacter spp. 2 (1%), otros bacilos Gram negativos 5 (2.7%). Enterococcus spp. 16 (8.7%) y otros cocos Gram positivos 20 (10.9%). La resistencia de E. coli y enterobacterias a ampicilina/sulbactam fue mayor a 34% y a ciprofloxacina mayor a 31%. En cambio, la resistencia de enterobacterias a piperacilina/tazobactam fue 4.8%, a ceftriaxona 9.5% y no se halló resistencia a carbapenemes. Respecto a amikacina fue 3.6% y a gentamicina 8.2%. En función de los resultados, el uso de quinolonas o de ampicilina/sulbactam para el tratamiento de las apendicitis debiera ser desaconsejado. Los esquemas basados en aminoglucósidos debieran ser jerarquizados en función de la sensibilidad hallada y su bajo impacto en la inducción de resistencias.

Antibiotic treatment for acute appendicitis is empirically chosen, based on epidemiological information. Resistance rates are different between regions and there are limited data on the situation in Argentina. As a part of a multicenter, observational study of abdominal infections, we performed the analysis of adult patients diagnosed with appendicitis, enrolled in 16 centers of 5 provinces, between Jan/01/2014 and Jun/30/2015. The aim was to analyze the prevalent aerobic pathogens, their resistance rates and the antimicrobial prescription pattern. On a total of 131 appendicitis cases analyzed, we found 184 aerobic pathogens (1.4 bacteria/episode): Escherichia coli 106 (57.6%), Klebsiella spp 16 (8.7%), Pseudomonas aeruginosa 19 (10.3%), Enterobacter spp. 2 (1%), other Gram negative bacilli 5 (2.7%); Enterococcus spp. 16 (8.7%) and other Gram positive cocci 20 (10.9%). The resistance rate of E. coli and enterobacteria to ampicillin/sulbactam was greater than 34% and greater than 31% to ciprofloxacin. However, the resistance of enterobacteria to piperacillin/tazobactam was 4.8%, to ceftriaxone 9.5%, to amikacin 3.6% and 8.2% to gentamicin. No resistance to carbapenems was found. The choice of quinolones or ampicillin/sulbactam for the treatment of appendicitis should be discouraged in our context, due to the high rates of resistance found in this prevalent etiology. Aminoglycoside-based treatments should be considered, given the findings of high antibiotic susceptibility and their low impact on the induction of resistance.

Nutritional support therapy in complicated intra-abdominal infection / 中华消化外科杂志

Complicated intra-abdominal infections (cIAIs) are common clinical conditions but difficult to manage in abdominal surgical practice.Since usually combined with gastrointestinal dysfunction,nutritional support therapy plays a key role in the long-term treatment.Early enteral nutrition could maintain intestinal barrier function,regulate immune function,and reduce gut permeability and bacterial translocation.Enteral combined with supplement parenteral nutrition could provide full-energy support to improve negative nitrogen balance and physiological function.Underlying pathophysiological changes should be understood,and appropriate mode of nutritional support should be chose carefully during disease course which can reduce incidence of complications and improve patients' prognoses.

Efficacy and safety of tigecycline on patients with complicated intra-abdominal infections / 中国生化药物杂志

Objective To investigate the clinical effect and safety of tigecycline on in patients with complicated intra-abdominal infections. Methods 52 cases of patients with complicated intra-abdominal infection were selected and randomly divided into 2 groups.26 cases in the control group were given routine anti-infection treatment, and 26 cases in the treatment group were treated with conventional anti-infection combined with tigecycline.The CD molecules and NK cell level, serum lactate and procalcitonin levels, and the clinical efficacy and safety were compared after the treatment between two groups.Results The effective rate of control group ( 69.23%) was lower than the treatment group ( 92.31%) with statistical significance (P<0.05), the levels of CD3 +, CD4 +/CD8 +, CD4 +and NK cells of the treatment group after treatment were higher than the control group, the level of CD8 +was lower than the control group after treatment, procalcitonin and serum lactate levels were lower than the control group, with statistical significance ( P<0.05 ) , there was no difference in adverse reactions between the two groups.Conclusion Tigecycline could improve the therapeutic effect of complicated intra-abdominal infections, reduce the lactate and procalcitonin levels with high safety.