Validation of the INCREMENT-SOT-CPE score in a large cohort of liver transplant recipients with carbapenem-resistant Enterobacterales infection.

BACKGROUND: Management of infections due to carbapenemase-resistant Enterobacterales (CRE) in solid organ transplant (SOT) recipients remains a difficult challenge. The INCREMENT-SOT-CPE score has been specifically developed from SOT recipients to stratify mortality risk, but an external validation is lacking. METHODS: Multicenter retrospective cohort study of liver transplant (LT) recipients colonized with CRE infection who developed infection after transplant over 7-year period. Primary endpoint was all-cause 30-day mortality from infection onset. A comparison between INCREMENT-SOT-CPE and other selected scores was performed. A two-level mixed effects logistic regression model with random effects for the center was fitted. Performance characteristics at optimal cut-point were calculated. Multivariable Cox regression analysis of risk factors for all-cause 30-day mortality was carried out. RESULTS: Overall, 250 CRE carriers developed infection after LT and were analyzed. The median age was 55 years (interquartile range [IQR]: 46-62) and 157 were males (62.8%). All-cause 30-day mortality was 35.6%. A sequential organ failure assessment (SOFA) score ≥ 11 showed a sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of 69.7%, 76.4%, 62.0%, 82.0%, and 74.0%, respectively. An INCREMENT-SOT-CPE ≥ 11 reported a sensitivity, specificity, PPV, NPV, and accuracy of 73.0%, 62.1%, 51.6%, 80.6% and 66.0%, respectively. At multivariable analysis acute renal failure, prolonged mechanical ventilation, INCREMENT-SOT-CPE score ≥ 11 and SOFA score ≥ 11 were independently associated with all-cause 30-day mortality, while a tigecycline-based targeted regimen was found to be protective. CONCLUSIONS: Both INCREMENT-SOT-CPE ≥ 11 and SOFA ≥ 11 were identified as strong predictors of all-cause 30-day mortality in a large cohort of CRE carriers developing infection after LT.

Brazilian perspective: antimicrobial stewardship in solid organ transplant.

BACKGROUND: The incidence of multidrug resistant organisms (MDROs) infections among solid organ transplant (SOT) patients is very high in Brazil. METHODS: This review will discuss antimicrobial use and resistance in SOT in Brazil, highlighting the main barriers and facilitators for implementation of an antimicrobial stewardship programme (ASP). RESULTS: The most common group of MDROs is carbapenem-resistant Gram-negative bacteria and vancomycin-resistant Enterococcus. Carbapenem-resistant Enterobacterales (CREs) are the most frequent MDROs and have been reported as donor-derived as well. Although ASPs are mandatory in the country, there is a lack of information regarding ASPs in SOT recipients. The main barriers for the implementation of ASPs in Brazilian hospitals are lack of electronic medical records, absence of national guidelines specific to SOT recipients, lack of recommendations on surveillance culture to evaluate colonization and transmission of donor-derived MDROs, limited availability of rapid diagnostic tests, and insufficient pharmacist and clinician time allocated to ASP activities in some SOT centers. CONCLUSIONS: The incidence of MDRO infections caused mainly by VREs and CREs is very high in the country. There is limited data regarding antimicrobial use among SOT recipients in Brazil. The absence of antimicrobial stewardship national guidelines specific to SOT recipients is one of the main barriers for the implementation of ASPs in Brazilian hospitals.

Organ Transplant From SARS-CoV-2-Positive Donors: A Brazilian Experience.

Since March 2022, donors with detectable SARS-CoV-2 RNA have been accepted for extrapulmonary organ transplants in Brazil. In this report, we described 11 successful organ transplants (6 kidney, 5 liver) from 5 asymptomatic infected donors.

LIVER TRANSPLANTATION IN HIV PATIENTS: A CASE SERIES FROM THE NORTHEAST REGION OF BRAZIL.

BACKGROUND: The emergence of potent combined highly active antiretroviral therapy (ART) in 1996 changed the natural history of HIV infection, with a significant reduction in mortality due to opportunistic infections but increased morbidity due to chronic cardiovascular, hepatic, and renal diseases. In May 2016, a reference center for liver transplantation in the Northeast of Brazil performed the first liver transplantations (LT) in HIV patients, with five others until 2021. METHODS: The criteria for selection of LT were good adherence and absence of resistance to ART, HIV viral load maximum suppression, T-CD4+ lymphocyte count of more than 100 cells/mm3, and absence of opportunistic infections in the last 6 months. RESULTS: Six liver transplants were performed between May 2016 and May 2021, five men, with a mean age of 53.2 years, and one was a diabetic patient. All patients had access to grafts with short cold ischemia with a mean time of 5 hours and 39 minutes. The 4-month survival rate was 100%, with a range time of follow-up of 4-63 months (mean time of 31 months). The mean pre-transplant T-CD4+ lymphocyte count was 436 cells/mm3. The mean length of hospital stay after transplantation was 16.8 days. One patient presented precocious vena cava thrombosis; another had stenosis of cavocaval anastomosis leading to refractory ascites, renal failure and post-transplant graft dysfunction, and another presented stenosis of choledochal anastomosis. Immunosuppression and prophylaxis were used according to standard protocols, and there were no differences in the profile of infections or rejection after liver transplantation. CONCLUSION: This case series documents good survival and usual transplant procedures for confirmed HIV cases.

Transplante hepático em pacientes portadores de HIV: série de casos da região nordeste do Brasil / Liver transplantation in hiv patients: a case series from the northeast region of brazil

ABSTRACT Background: The emergence of potent combined highly active antiretroviral therapy (ART) in 1996 changed the natural history of HIV infection, with a significant reduction in mortality due to opportunistic infections but increased morbidity due to chronic cardiovascular, hepatic, and renal diseases. In May 2016, a reference center for liver transplantation in the Northeast of Brazil performed the first liver transplantations (LT) in HIV patients, with five others until 2021. Methods: The criteria for selection of LT were good adherence and absence of resistance to ART, HIV viral load maximum suppression, T-CD4+ lymphocyte count of more than 100 cells/mm3, and absence of opportunistic infections in the last 6 months. Results: Six liver transplants were performed between May 2016 and May 2021, five men, with a mean age of 53.2 years, and one was a diabetic patient. All patients had access to grafts with short cold ischemia with a mean time of 5 hours and 39 minutes. The 4-month survival rate was 100%, with a range time of follow-up of 4-63 months (mean time of 31 months). The mean pre-transplant T-CD4+ lymphocyte count was 436 cells/mm3. The mean length of hospital stay after transplantation was 16.8 days. One patient presented precocious vena cava thrombosis; another had stenosis of cavocaval anastomosis leading to refractory ascites, renal failure and post-transplant graft dysfunction, and another presented stenosis of choledochal anastomosis. Immunosuppression and prophylaxis were used according to standard protocols, and there were no differences in the profile of infections or rejection after liver transplantation. Conclusion: This case series documents good survival and usual transplant procedures for confirmed HIV cases.

RESUMO Contexto: A emergência da terapia antirretroviral de alta potência, em 1996, mudou a história natural da infecção por HIV, com redução significativa de mortalidade por infecções oportunistas, mas com aumento de morbidade por doenças crônicas cardiovasculares, hepáticas e renais. Em maio de 2016, um centro de referência em transplante hepático no Nordeste do Brasil realizou o primeiro transplante hepático em portadores de HIV, com cinco outros até 2021. Métodos: Os critérios de seleção para o transplante hepático foram: boa aderência e ausência de resistência à terapia antirretroviral, carga viral indetectável, contagem de linfócitos T-CD4+ acima de 100/ mm3 e ausência de infecções oportunistas nos últimos 6 meses. Resultados: Seis transplantes hepáticos foram feitos em portadores de HIV entre maio de 2016 e maio de 2021, cinco homens, com idade média de 53,2 anos, um paciente diabético. Todos os pacientes tiveram acesso a enxertos com tempo de isquemia fria curto com média de 5 horas e 39 minutos. A sobrevida em 4 meses foi de 100%, com tempo de acompanhamento de 4-63 meses (média de 31 meses). A contagem média de linfócitos T-CD4+ pré-transplante foi de 436 células/ mm3. A média de tempo de internação foi de 16,8 dias. Um paciente teve trombose de veia cava proximal; outro teve estenose de anastomose cavo-caval, levando à ascite refratária, falência renal e disfunção de enxerto pós-transplante; e outro teve estenose de anastomose do colédoco. A imunossupressão e a profilaxia foram usadas de acordo com protocolos padrão e não houve diferenças no perfil de infecções ou de rejeição pós-transplante. Conclusão: Esta casuística ilustra que o transplante de fígado em portadores do HIV apresenta complicações usuais e sobrevida satisfatória.

Clostridioides difficile from Brazilian hospitals: characterization of virulence genes by whole genome sequencing.

Clostridioides difficile (CD) is the most frequent cause of healthcare related diarrhea and its severity has increased in the last decade by the spread of hypervirulent strains. Most important CD virulence factor is toxin production; however, not only toxins are responsible for Clostridioides virulence. We sequenced 38 strains and analyzed the presence and integrity of 24 virulence (including toxin) genes. We identified 28 toxigenic strains, six also presented the cdt genes. Only six strains didn't present all others genes searched. All absent genes were adhesion related. Understand others CD virulence factors can lead to a best understanding on this matter.

Evaluation of loop-mediated isothermal amplification assay for detection of Clostridioides difficile infection: A prospective diagnostic performance study.

A novel Loop-mediated isothermal amplification (LAMP) assay, HiberGene's CD was evaluated with 82 unformed stools from patients suspected of C. difficile infection (CDI). Compared to glutamate dehydrogenase (GDH) toxins A/B test (C.diff Quik Chek®), HiberGene's LAMP showed 100% of sensitivity and 95,8% of specificity; and compared to FilmArray™ GI panel ® (BioFire), a sensitivity of 81,2% and a specificity of 100%, with 96.38% of agreement.

Predictive factors, outcomes, and molecular epidemiology of Clostridioides difficile diarrhea in Brazilian hospitals.

Little is known about the role of lineage of strains of Clostridioides difficile (CD) on the clinical presentation of CD infection (CDI) in Latin America, especially regarding the treatment response. We conducted a multicenter, prospective study to investigate the predictive factors and treatment outcomes of CDI in hospitalized patients and to performed phenotypical and molecular characterization of CD strains. A total of 361 diarrheic patients at 5 hospitals from different regions of the country were enrolled. All stool samples were tested for glutamate dehydrogenase (GDH), toxins A and B, and toxin genes using a nucleic acid amplification test (NAAT). Specimens were cultured and susceptibility profile and whole-genome sequencing (WGS) were performed. CDI positivity was 15% (56/377). Predictive factors for CDI were prior use of meropenem (OR 4.09, 95% CI 2.097-7.095; p<0.001), mucus in stools (OR 3.29; 95% CI 1.406-7.722; p=0.006) and neutrophil left-shift with >20% of bands (OR 3.77; 95% IC 1.280-11.120; p=0.016). Overall mortality was 19%, with no deaths attributed to CDI. Oral metronidazole was used in 74% of cases, with 85% of cure and 14% of recurrence. A total of 35 CD isolates were recovered, all of them susceptible to metronidazole and vancomycin. The WGS revealed 17 different STs, six of which were novel. ST42 was the most common ST and hypervirulent strains were not found. Severe CDI were caused by ST42, ST5, ST8, ST48, ST33 and a novel ST667. The ermB gene was more frequently found in isolates of ST42 (p=0.004).

Prevalence of Clostridioides difficile associated diarrhea in hospitalized patients in five Brazilian centers: A multicenter, prospective study.

Epidemiological data on CD infection (CDI) in Latin American are scarce. CDI prevalence and strains characterization were prospectively evaluated in 5 Brazilian hospitals from different regions. Prevalence rates of CDI were 15%, ranging from 0 to 37%. ST42 was the most common Sequence Type and hypervirulent strains were not identified.

Severe Strongyloides stercoralis infection in kidney transplant recipients: a multicenter case-control study

BACKGROUND: Severe Strongyloides stercoralis infection in kidney transplant recipients is associated with considerable morbidity and mortality, although little is known about the risk factors for such infection. METHODOLOGY/Principal findings This was a retrospective, multicenter, case­control study in which we assessed the risk factors for and clinical outcomes of severe S. stercoralis infections in kidney transplant recipients in Brazil. We included 138 kidney transplant recipients: 46 cases and 92 controls. Among the cases, the median number of days from transplantation to diagnosis was 117 (interquartile range [IQR], 73.5­965) and the most common clinical findings were gastrointestinal symptoms (in 78.3%) and respiratory symptoms (in 39.1%), whereas fever and eosinophilia were seen in only 32.6% and 43.5%, respectively. The 30-day all-cause mortality among the cases was 28.3% overall and was significantly higher among the cases of infection occurring within the first three months after transplantation (47% vs. 17.2%, P = 0.04). The independent risk factors were receiving a transplant from a deceased donor (odds ratio [OR] = 6.16, 95% confidence interval [CI] = 2.05­18.5), a history of bacterial infection (OR = 3.04, 95% CI = 1.2­7.5), and a cumulative corticosteroid dose (OR = 1.005, 95% CI = 1.001­1.009). The independent predictors of mortality were respiratory failure (OR = 98.33, 95% CI = 4.46­2169.77) and concomitant bacteremia (OR = 413.00, 95% CI = 4.83­35316.61). CONCLUSIONS/Significance Severe S. stercoralis infections are associated with considerable morbidity and mortality after kidney transplantation. In endemic areas, such infection may occur late after transplantation, although it seems to be more severe when it occurs earlier after transplantation. Specific risk factors and clinical manifestations can identify patients at risk, who should receive prophylaxis or early treatment. (AU)

Clinical and laboratory profiles of children with severe chikungunya infection.

INTRODUCTION: Chikungunya infection presents with distinct clinical features depending on the patient age group. METHODS: Medical records of children with positive IgM for the chikungunya virus who were hospitalized in a pediatric ward in Fortaleza, Ceará, Brazil were analyzed. RESULTS: Fourteen children with a median age of 4 months (36 days to 15 years) were included. All patients presented with fever persisting for an average of 5 days. The joints were involved in 6 (42.8%) children, and 8 (57.1%) children presented with bullous rash. CONCLUSIONS: Systemic involvement and atypical clinical manifestations characterize severe forms of chikungunya infection in children.

Clinical and laboratory profiles of children with severe chikungunya infection

Abstract INTRODUCTION: Chikungunya infection presents with distinct clinical features depending on the patient age group. METHODS: Medical records of children with positive IgM for the chikungunya virus who were hospitalized in a pediatric ward in Fortaleza, Ceará, Brazil were analyzed. RESULTS: Fourteen children with a median age of 4 months (36 days to 15 years) were included. All patients presented with fever persisting for an average of 5 days. The joints were involved in 6 (42.8%) children, and 8 (57.1%) children presented with bullous rash. CONCLUSIONS: Systemic involvement and atypical clinical manifestations characterize severe forms of chikungunya infection in children.

Whipple disease without joint involvement in a patient with chronic diarrhea and HIV seropositive partner: case report / Doença de Whipple sem envolvimento articular em paciente com diarréia crônica e parceira HIV-soropositiva: Relato de caso

Introduction: Whipple's disease is a rare, infectious disease caused by the bacterium Tropheryma whipplei that affects multiple organs and systems. It is difficult to identifyand frequently presents as a diagnosis of exclusion due existence of conditions causing most prevalent chronic diarrhea, as AIDS and Inflammatory Bowel Disease. Case report: Herein we report the clinical findings of a 38-year-old male patient, married with a HIV seropositive woman, with a four-year course of chronic diarrhea until he received a definitive diagnosis. Treatment was started with a 15-day penicillin G regimen, followed by continued trimethoprim­sulfamethoxazole 80/400mg after hospital discharge up to current days. Conclusion: Currently, the patient remains asymptomatic and has completed clinical remission after two years of treatment. (AU)

Introdução: A doença de Whipple é uma doença infecciosa rara causada pela bactéria Tropheryma whipplei que afeta múltiplos órgãos e sistemas. É difícil de identificar e freqüentemente se apresenta como um diagnóstico de exclusão devido à existência de condições que causam diarréia crônica mais prevalentes, como AIDS e Doença Infçamatória Intestinal. Relato do Caso: Aqui, relatamos os achados clínicos de um paciente do sexo masculino de 38 anos, casado com uma mulher HIV-soropositiva, com um curso de quatro anos de diarréia crônica até receber o diagnóstico definitivo. O tratamento foi iniciado com penicilina G por 15 dias, seguido de sulfametoxazol- trimetoprim 400/80 mg após a alta hospitalar até os dias atuais. Conclusão: Atualmente, o paciente permanece assintomático e apresentado remissão clínica completa após dois anos de tratamento. (AU)

Dengue in renal transplant recipients: Clinical course and impact on renal function.

AIM: To present clinical characteristics from renal transplant recipients with dengue fever and its impact on graft function. METHODS: We retrospectively evaluated 11 renal transplant recipients (RTR) with dengue infection confirmed by laboratory test, between January 2007 and July 2012, transplanted in the Renal Transplant Center of Walter Cantídio University Hospital from Federal University of Ceará. RESULTS: Positive dengue serology (IgM) was found in all patients. The mean time between transplant and dengue infection was 43 mo. Fever was presented in all patients. Nine patients presented with classical dengue and two (18%) with dengue hemorrhagic fever. All cases had satisfactory evolution with complete recovery of the symptoms. The time for symptom resolution varied from 2 to 20 d, with an average of 9 d. An increase of creatinine after the infection was observed in three (27.2%) patients with no clinically impact on the kidney graft function. CONCLUSION: RTR with dengue infection seems to have a clinical presentation and evolution similar to those seen in the general population, with no long-term damage to patient and to the graft.

Características clínico-epidemiológicas de pacientes com coinfecção HIV/tuberculose acompanhados nos serviços de referência para HIV/AIDS em Fortaleza, Ceará, entre 2004 e 2008 / Clinical and epidemiological characteristics of patients with HIV/tuberculosis coinfection followed in reference services for HIV/AIDS in Fortaleza, Brazil, between 2004 and 2008

Fortaleza é um dos centros urbanos com maior carga de tuberculose no Brasil, com cerca de 2.000 casos novos diagnosticados a cada ano e incidência de 66,2 casos/100.000 habitantes. Avaliaram-se características clínicas e epidemiológicas de pacientes com coinfecção HIV/tuberculose, maiores que 12 anos, residentes em Fortaleza, Ceará. Realizou-se estudo retrospectivo, descritivo. Foram revisados dados dos pacientes com tuberculose ativa acompanhados nos ambulatórios de referência para HIV/AIDS em Fortaleza entre os anos de 2004 e 2008. O perfil desses pacientes caracterizou-se por serem adultos jovens, com baixa escolaridade, sendo comuns hábitos de etilismo (42,00%), tabagismo (46,30%) e uso de drogas ilícitas (26,46%). A maioria (66,9%) apresentou tuberculose pela primeira vez. Os sintomas mais comuns foram febre (76,6%), tosse (72,7%) e perda de peso (67,3%). Quanto à apresentação clínica, a tuberculose pulmonar foi observada em 48,6%. A maioria (61,8%) foi submetida a internamento hospitalar durante o tratamento da tuberculose. O uso de antirretrovirais foi mais frequente nos casos que evoluíram para cura ou término de tratamento (80%). A letalidade foi de 11,4% e a taxa de abandono de 22,9%. Estes resultados são importantes para o planejamento e desenvolvimento de ações voltadas para o controle da tuberculose nos pacientes com infecção por HIV/AIDS em Fortaleza.

Bacillary angiomatosis in HIV-positive patient from Northeastern Brazil: a case report.

It is a report of disseminated bacillary angiomatosis (BA) in a 23-year-old female patient, who is HIV-positive and with fever, weight loss, hepatomegaly, ascites, and papular-nodular skin lesions. The clinical and diagnostic aspects involved in the case were discussed. Bacillary angiomatosis must always be considered in the diagnosis of febrile cutaneous manifestations in AIDS.

Bacillary angiomatosis in HIV-positive patient from Northeastern Brazil: a case report / Angiomatose bacilar em paciente HIV positivo no nordeste brasileiro: relato de caso

It is a report of disseminated bacillary angiomatosis (BA) in a 23-year-old female patient, who is HIV-positive and with fever, weight loss, hepatomegaly, ascites, and papular-nodular skin lesions. The clinical and diagnostic aspects involved in the case were discussed. Bacillary angiomatosis must always be considered in the diagnosis of febrile cutaneous manifestations in AIDS.

Relato de angiomatose bacilar (AB) disseminada em paciente do sexo feminino de 23 anos, HIV positiva, com febre, emagrecimento, hepatomegalia, ascite e lesões de pele pápulo-nodulares. Foram discutidos os aspectos clínicos e diagnósticos envolvidos no caso. Angiomatose bacilar deve sempre ser considerada no diagnóstico de doença febril com manifestações cutâneas na AIDS.