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Background Methods Results Conclusion Development of brain abscess following solid organ transplantation is associated with significant morbidity and mortality. We undertook a descriptive study to evaluate the etiology, clinical manifestations, diagnosis, management, and outcomes of brain abscess in solid organ transplant (SOT) recipients at three major transplant centers in the United States.This is a retrospective study of adults with brain abscess following SOT between January 2000 and June 2021 at Mayo Clinic sites in Arizona, Minnesota, and Florida.A total of 39 patients were diagnosed with a brain abscess following SOT. The most common pathogens were Nocardia sp. (24 cases, 61.5% [Nocardia farcinica, 37.5%]), followed by fungi (12 cases, 30.7% [Aspergillus sp., 83.3%]). The majority were kidney transplant recipients (59%). Median time to brain abscess diagnosis was 1.3 years (range, 29 days–12 years) after SOT; 10 of 12 patients (83%) with fungal brain abscess were diagnosed within 1 year after SOT. Twelve patients underwent brain biopsy for diagnosis (25% Nocardia vs. 50% fungal), eight (20.5%) underwent surgical resection of the abscess, and 31 (79.5%) received antimicrobial therapy alone. Median time to brain abscess resolution was 166 days for Nocardia and 356 days for fungal pathogens. Eleven of 39 patients (28.2%) died as a result of their brain abscess, including four of 24 patients (16%) with Nocardia and six of 10 patients (60%) with Aspergillus brain abscess. All‐cause mortality was 43.6%.Brain abscess remains an uncommon infectious complication following SOT. Nocardia and fungi accounted for 92% of pathogens in our cohort. Fungal brain abscess portends a poor prognosis. [ABSTRACT FROM AUTHOR]

The treatment of brain abscess induced by carbapenem-resistant Pseudomonas aeruginosa (CRPA) is a clinical challenge around the world. Apart from novel blactam/ b-lactamase inhibitors and polymyxins, there are few sufficiently powerful antibiotics that are effective against CRPA-induced infections. Considering the blood-brain barrier factor, there are even fewer drugs that can be used to treat intracranial CRPA-induced infections. In this article, we reported a case of CRPA-induced brain abscess that was successfully treated with intravenous ceftazidime/avibactam and intrathecal colistimethate sodium in a child after intracranial tumor resection. [ABSTRACT FROM AUTHOR]

Objectives Our objective was to determine if decreased contrast enhancement on postoperative magnetic resonance imaging (MRI) is associated with an increased risk of complication in patients who have undergone nasoseptal flap (NSF) reconstruction. Design/Setting This was a single-institution retrospective study of patients who underwent a first-time endoscopic endonasal approach (EEA) with NSF reconstruction. Participants Patients underwent an EEA to the skull base with NSF reconstruction and received postoperative MRI within 3 weeks of the operation. Main Outcome Measures MR exams were scored on the degree of contrast enhancement at first postoperative MRI. An enhancement score of 4 indicated ≥75% enhancement of the NSF. A score of 3 indicated enhancement ≥50% and <75% enhancement of the NSF. A score of 2 indicated ≥25% and <50% enhancement of the NSF. Complications (e.g., cerebrospinal fluid [CSF] leak, meningitis, empyema, cerebritis, brain abscess, flap necrosis, and flap migration) were retrieved from our institution's skull base database. Logistic regression was used to determine the effect of the MRI enhancement score on the odds of developing a complication. Results Out of 99 patients in the study, six had complications. Patients who underwent NSF reconstruction of skull base defects were found to have 19 times higher odds of complication (p = 0.007) if they had had an NSF enhancement score of 2 on their postoperative MRI when compared with patients with complete or near complete NSF enhancement (score 4). Conclusion Quantifying NSF enhancement with an MRI may help surgeons better predict which of their patients are at an increased risk of complication. [ABSTRACT FROM AUTHOR]

The article discusses the use of l‐asparaginase (l‐Asp) monotherapy in treating acute fulminant chronic active Epstein–Barr virus infection, a life-threatening condition. Two rare cases of patients with high EBV-DNA levels and organ dysfunction were successfully treated with l‐Asp, leading to the initiation of hematopoietic stem cell transplantation (HSCT). The study found that l‐Asp may be an effective bridging therapy to reduce tumor burden before HSCT in such cases, as CAEBV tumor cells have low levels of asparagine synthetase, potentially contributing to the drug's effectiveness. [Extracted from the article]

Nocardia farcinica is the most pathogenic Nocardia, which is easy to disseminate. It can be caused by trauma, and even lead to severe lung or central nervous system infection. This report covers a case of Nocardia brain abscess in an HIV patient, who underwent resection of the brain abscess, followed by anti-infective therapy with sulfamethoxazole and meropenem, and eventually made a good recovery. The mortality rate of Nocardia farcinica brain abscess has been attributed to the severity of the underlying disease, the difficulty in identifying the pathogen, and its inherent resistance to antibiotics, leading to inappropriate or late initiation of treatment. Medication should follow the principle of sufficient dosage and sufficient course of treatment. [ABSTRACT FROM AUTHOR]

Background: Pyogenic brain abscess is a severe neurological infection associated with significant morbidity and mortality. Despite advances in diagnostic techniques, neurosurgical procedures, and antimicrobial therapy, managing pyogenic brain abscesses remains challenging. This article reviews the current understanding of the epidemiology, pathogenesis, diagnosis, and treatment of pyogenic brain abscesses, highlighting the importance of a multidisciplinary approach to improve patient outcomes. Materials and Methods: A comprehensive literature review was conducted using PubMed, Scopus, and Google Scholar databases. The search terms included "pyogenic brain abscess," "epidemiology," "pathogenesis," "diagnosis," "treatment," "antibiotic therapy," and "prognosis." Relevant articles published in English between 2010 and 2023 were selected, focusing on the most recent advances and evidence-based recommendations for managing pyogenic brain abscesses. Results: Pyogenic brain abscess is a life-threatening condition that requires prompt diagnosis and treatment. A multidisciplinary approach involving neurosurgeons, infectious disease specialists, and radiologists is necessary to manage pyogenic brain abscesses successfully. Conclusion: Early recognition, appropriate antibiotic therapy, and timely neurosurgical intervention are essential for improving patient outcomes and minimizing neurological sequelae. Antibiotic therapy and surgical approach should be tailored to the individual patient, considering factors such as the suspected pathogens, immune status, and the primary source of infection. Long-term follow-up is crucial, as recurrence and neurological sequelae are common among survivors. Continued research is needed to improve our understanding of this complex condition and develop more effective treatment strategies. [ABSTRACT FROM AUTHOR]

Background: Traumatic skull fractures have been traditionally classified into those that involve the base or vault with distinct entities linear or depressed. Compound elevated skull fracture is a newer entity with scanty reports in the literature. Objective: To describe the clinical presentation, neuro-radiology findings by development of a classification system, medical and surgical management, and complications of patients with compound elevated skull fractures at a tertiary referral neurosurgical department. Methods: Medical records of consecutive patients admitted from January 2005 to December 2018 with compound elevated skull fractures at the single neurosurgical referral hospital were retrospectively evaluated. Data was analyzed for demographics, clinical presentation, mechanisms of injury, neuro-radiology findings, management and outcomes. Results: Eighteen patients were included in this series with a median age of 28 years, median admission Glasgow Coma Scale was 12. Ten patients presented with focal neurological deficits which included hemiparesis [n = 8, 44%] and unilateral afferent pupil deficit [n = 2, 11%]. Intra-cerebral haematoma was the most common associated neuro-radiological finding [n = 10, 55%] followed by acute extradural haematoma [n = 4, 22%]. Three distinct neuro-radiological subtypes were identified: Type 1 – fractured segment with minimal loss of contact with rest of cranial vault, Type 2 – fractured segment with partial loss of contact with rest of cranial vault, Type 3 – fractured segment with complete loss of contact with rest of cranial vault. All patients underwent surgical debridement and of which 11 [61%] required duroplasty and 10[55%] re-placement of elevated bone flap. Septic complications included meningitis [n = 5, 27%], brain abscess [2, 11%] and surgical site infection [n = 1, 5%]. Seventeen patients had favourable outcomes at discharge (Glasgow Outcome Scale 4 or 5). Conclusion: Compound elevated skull fracture is an additional subtype of skull vault fracture. Prompt neurosurgical management with appropriate operative management of dura and elevated bone fragment reduces morbidity from septic complications. [ABSTRACT FROM AUTHOR]

Aseptic abscess (AA) is a rare autoinflammatory disorder, characterized by the formation of sterile abscesses in various organs, and is accompanied by inflammatory bowel disease. Antibiotic treatment is ineffective, but steroid therapy shows a good response. AA can be difficult to differentiate from infection because abscesses appear similar both radiologically and histopathologically. Herein, we present the case of a 56-year-old woman with AA in the anterior chest wall and synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome. [ABSTRACT FROM AUTHOR]

Cladophialophora bantiana is a dematiaceous fungi and the most common cause of cerebral phaeohyphomycosis. Here, we report a rare case of cerebral ventriculitis with development of a cerebral abscess due to C. bantiana diagnosed by cell‐free DNA next‐generation sequencing. Noninvasive diagnostics led to earlier disease identification and initiation of antifungal therapy, which has the potential to reduce mortality in this highly fatal disease. [ABSTRACT FROM AUTHOR]

Background: Infective endocarditis is an uncommon but well-known post-transplant complication with significant morbidity and mortality. It has been observed to be about 171 times more common in solid organ transplant patients than in the general population. With the increasing rate of end-stage kidney disease, the higher demand for kidney transplantation with better graft survival, and life expectancy rates, more transplant recipients may develop infective endocarditis as a late post-transplant complication. Prompt diagnosis of infective endocarditis is therefore necessary to avert graft loss and other life-threatening outcomes. Case presentation: We present a case of a 52-year-old African patient who had a live donor kidney transplant 18 months prior to presentation and had been on oral tacrolimus 5 mg every morning/4.5 mg every evening, mycophenolic acid (MPA) 720 mg twice daily, and oral prednisolone 10 mg daily as maintenance immunosuppressive medications. Regarding the above immunosuppressive medications, he had been in good health and had a functioning transplant graft. He presented with a resolving right thigh swelling, recurrence of fever, new onset left hemiplegia, and seizures. Enterococcus faecalis infective endocarditis was diagnosed with metastatic brain abscesses, which was treated with intravenous vancomycin and gentamycin for 5 weeks. There are very few reported cases of infective endocarditis due to Enterococcus faecalis, and this case is unique because the initial presentation was pyomyositis. Conclusion: Infective endocarditis with septic embolization to the brain should be considered in kidney transplant recipients with pyomyositis and multiple rim-enhancing lesions, especially in the late post-transplant period with Enterococcal spp. as an emerging cause of infective endocarditis in kidney transplant recipients. Clinicians will need to have a high index of suspicion to aid early diagnosis with appropriate treatment to prevent adverse outcomes. [ABSTRACT FROM AUTHOR]

Background: An increased incidence of brain abscesses was observed post-COVID-19 pandemic. However, it remains unclear how the COVID-19 pandemic influenced the epidemiology of brain abscesses. This study aimed to investigate changes in the epidemiology of brain abscesses pre- and post-COVID-19 pandemic. Methods: A retrospective study of demographic, clinical, radiological, and laboratory characteristics of patients with brain abscesses in Children's Hospital of Soochow University from 2015–2023 was performed. Results: A total of 34 patients were admitted to the hospital during the study. The post-COVID-19 cohort had an average of 5.5 cases/year, which is a 129.2% increase compared to the pre-COVID-19 cohort's average of 2.4 cases/year. Additionally, the rates of fever upon admission (86.36% vs 50%, p = 0.04) and experiencing high-grade fever within 6 weeks before admission (40.91% vs 8.33%, p = 0.044) were significantly increased. A potential rise in the rate of intensive care unit admission was observed (36.36% vs 8.33%, p = 0.113). The average value of globulin in the post-COVID cohort was significantly higher compared to the pre-COVID cohort (31.60 ± 5.97 vs 25.50 ± 5.08, p = 0.009). Streptococcal infections were the predominant cause of brain abscesses in both cohorts (40% vs 43.75%, p = 0.57). Conclusions: There was a significant increase in the number of brain abscess patients after the COVID-19 pandemic. This underscores the importance of children receiving the streptococcal vaccine. [ABSTRACT FROM AUTHOR]

Nocardia is widely distributed in the natural environment and typically cause opportunistic infections. However, it is important to note that the pathogenicity of different Nocardia species may vary significantly. Here we reported the first case of brain abscess caused by Nocardia beijingensis (N. beijingensis) infection in China. A 70-year-old male immunocompetent individual came to our hospital for treatment due to headache. After examination, it was found that he had a brain abscess caused by N. beijingensis. By utilizing a combination of surgical intervention and antibiotic therapy, the patient ultimately achieved full recovery. In addition, we isolated this strain and displayed its ultrastructure through scanning electron microscopy. The phylogenetic tree was analyzed by 16 S rRNA sequence. A literature review of N. beijingensis infections in all immunocompetent and immunocompromised patients was presented. It highlighted that abscess formation appears to be a common manifestation of N. beijingensis infection, and N. beijingensis has become an emerging pathogen in immunocompetent individuals. [ABSTRACT FROM AUTHOR]

One of the earliest medical disorders to be identified is epilepsy. Strange and diverse forms of therapy have been used throughout history. A cure has not been found despite the popularity of ointments, medications, magic, enemas, exorcism, spiritualism, surgical and physical, as well as behavioural therapies. There is a notable deficiency of current literature about the management of seizures and epilepsy in neurosurgical patients, despite the fact that neurosurgeons are enrolled in the prescription of antiepileptic drugs (AEDs) for the seizures especially in perioperative periods. Neurosurgeons scope of management of epilepsy usually involve patients with either traumatic brain injury, neoplasms, subarachnoid haemorrhages, and brain abscess and infection. Depending on when they began, post-craniotomy seizures are categorised into three categories: promptly (before 24 h), early (before 1 week), and late (after 1 week). One-third of seizures can occur within the first month after a craniotomy, usually within the first 3 days, even though the risk of seizures persists for several post-operative months. There are multiple generations of AEDs, and further research is required to settle a clear recommendation for each and every case of seizures especially for hard population like the neurosurgical patients. [ABSTRACT FROM AUTHOR]

Objective: In the last decade, intravenous drug use (IVDU)-associated infections have increased significantly in parallel with the increase in intravenous drug addiction. Skin and soft tissue infections (SSTIs) and infective endocarditis (IE) are the most common infections and are important causes of morbidity and mortality. We aimed to share our experience regarding the epidemiology, microbiology, diagnosis, and management of IVDU-associated infections. Methots: Patients hospitalized with IVDU-associated bacterial infections between January 2014 and December 2023 were included in this descriptive and retrospective study. Results: Seventy-three IVDU-associated infections were identified in 66 patients. The median age was 30.5±7.23 years, and 90.9% were male; 35 (47.9%) were SSTI, 29 (39.7%) IE, 3 (4.1%) pneumonia, and one patient each (1.3%) had acute hepatitis B and brain abscess. Four (5.4%) had both SSTI and IE. Chronic hepatitis C (83.3%) was the most common viral infection. 24.2% of them had deep vein thrombosis. The leg (33.3%) and forearm (20.5%) were the most frequently affected areas in SSTI, and 19 (48.7%) were abscesses, 14 (35.9%) cellulitis, 5 (12.8%) necrotizing SSTIs and one septic arthritis. Osteomyelitis was observed in 8 (20.5%) of the SSTIs. Half (51.2%) of the SSTI patients underwent surgical intervention. Blood cultures were taken from 82% (n=32) of 39 SSTIs, and bacteremia was detected in 37.5% (n=12). Microorganisms were identified in 84% (n=21) of 25 abscesses; four were polymicrobial. Of 33 IE patients, 84.8% had right-sided IE. The tricuspid valve (96.4%) was most commonly involved; septic pulmonary embolism was documented in 20 (71.4%) of the patients. Valve surgery was performed in nine of the patients (27.2%). Methicillin susceptible Staphylococcus aureus was the most common pathogen (35.7%), followed by methicillin-resistant S. aureus (22.8%). The mortality rate was 9%. Conclusion: Increase in IVDU is an urgent public problem for our country. Multidisciplinary approach and antimicrobial treatment are essential in the treatment of IVDU associated-SSTI and IE. [ABSTRACT FROM AUTHOR]

Introduction: The annual incidence of brain abscesses is 1-2% in developed countries and up to 8% in developing countries. Our aim was to describe the profile and etiological agents of patients with surgical brain infections according to their nosological diagnosis on admission, and to analyze whether the initial diagnosis influenced the neurological deficit at discharge. Methodology: This was an observational study with convenience sampling. All surgical cases operated between January 2017 and February 2022 with a final diagnosis of an infectious process were included. Three groups were analyzed according to admission diagnosis: a) infection, b) neoplasia, and c) miscellaneous. The time before admission, final histological diagnosis, etiological agent, length of hospital stay, and secondary neurological deficits were investigated. Descriptive and comparative statistics were used. Results: 24 cases, including 18 (75%) men and 6 (25%) women, of ages 19 to 61 years (average 43.7 years) were studied. Nosological diagnoses on admission were infection in 9 (37.5%) patients, cerebral neoplasia in 9 (37.5%) patients, and miscellaneous diagnoses in 6 (25%) patients. Among the miscellaneous, neoplastic, and infectious groups, 33.3%, 33.3%, and 22.2% of patients were discharged with some neurological deficits with overall neurological morbidity and mortality of 29.6% and 8%, respectively. The etiological agents were Mycobacterium tuberculosis (16.6%), Streptococcus sp. (13%), Morganella morganii (8.7%), Nocardia sp. (4.3%), Cryptococcus sp. (4.3%), and Klebsiella sp. (4.3%). Conclusions: Nosological diagnosis on admission did not influence the percentage of patients with neurological deficits in our study. Mycobacterium was the most frequent etiological agent. [ABSTRACT FROM AUTHOR]

We analyzed data on pediatric invasive fungal diseases of the central nervous system (CNS-IFDs) reported by five of a total of eight Pediatric Hematology-Oncology Departments in Greece for 16 years (2007–2022). A total of twelve patients (11 boys, median age: 9.5 years, range: 2–16) were reported suffering from CNS-IFDs. The underlying malignancy was acute lymphoblastic leukemia in 9/12 and acute myeloid leukemia, Ewing sarcoma, and rhabdomyosarcoma in one each. Eleven patients presented with CNS-related symptoms (i.e., seizures, headache, cerebral palsy, ataxia, hallucination, seizures, blurred vision, amaurosis). All patients had pathological MRI findings. Multifocal fungal disease was observed in 6/12 patients. Nine proven and three probable CNS-IFD cases were diagnosed. Causative pathogens in proven cases were Aspergillus spp. and Candida albicans (n = 2 each), Mucor spp., Rhizopus arrhizus, Absidia spp., Fusarium oxysporum and Cryptococcus neoformans (n = 1 each). Causative pathogens in probable cases were Aspergillus spp. (n = 2) and Candida spp. (n = 1). All patients received appropriate antifungal therapy (median duration: 69.5 days, range 19–364). Two patients underwent additional surgical treatment. Six patients were admitted to the Intensive Care Unit due to complications. Three patients (25%) died, two due to IFD and one due to an underlying disease. Early recognition and prompt intervention of CNS-IFDs may rescue the patients and improve overall survival. [ABSTRACT FROM AUTHOR]

Purpose: Common respiratory infections were significantly reduced during the COVID-19 pandemic due to general protective and hygiene measures. The gradual withdrawal of these non-pharmaceutical interventions (NPI) was associated with a notable increase in these infections, particularly in pediatric and adult otorhinolaryngology. The aim of this retrospective monocentric study was to evaluate the impact of NPI during the COVID-19 pandemic on the incidence and severity of acute mastoiditis (AM). Methods: Pre-pandemic clinical data of AM cases from 2011 to 2019 were compared with infection counts from January 2020 to June 2023 for seasonal periodicity, age-specific differences, pathogens, and complication rates in a German third-level hospital. Results: Out of 196 patients with AM 133 were children, the majority between 1 and 5 years of age. Complications of AM, such as meningitis, brain abscess, and sinus vein thrombosis, were more common in adults (87%) than in children (17%). Morbidity and mortality rates were similar before, during and after the pandemic. Pneumococci were the most common pathogen in both age groups, with a post-pandemic cumulation of Streptococcus pyogenes infections in children. While pre-pandemic cases clustered in spring, seasonality was absent in all age groups during the main phase of the pandemic. The cessation of NPI caused a steep rise in AM cases in both age groups starting from December 2022. Conclusion: NPI during the COVID-19 pandemic reduced the incidence of AM. Their reversal led to a substantial increase in the incidence of AM during the post-pandemic period, which may be due to a general increase in viral respiratory infections and an insufficiently trained immune system. [ABSTRACT FROM AUTHOR]

Background: Orbital cellulitis is a severe, potentially life-threatening condition that often arises as a complication of sinusitis, trauma, or dental infections. Prompt diagnosis and effective management are crucial to prevent serious outcomes such as vision loss and intracranial complications. This case series explores the diverse clinical presentations, radiological findings, and management strategies for orbital cellulitis, with a particular focus on cases complicated by underlying systemic conditions and coexisting orbital pathologies. Methods: A retrospective analysis was conducted on five patients diagnosed with orbital cellulitis at a tertiary care center in India. The cases included orbital cellulitis secondary to sinusitis, trauma, dental infections, and in an immunocompromised patient with uncontrolled diabetes. Each case was evaluated based on clinical presentation, radiological imaging (CT and MRI), bacteriological findings, and treatment outcomes. The results were compared with findings from other studies to provide a comprehensive understanding of the condition. Results: Sinusitis was the most common etiology, consistent with global data, but trauma and dental infections also played significant roles. Radiological imaging, particularly CT scans, was essential in identifying abscess formation and guiding surgical intervention. MRI was crucial in cases with suspected intracranial extension. Complications such as intracranial abscess and prolonged recovery were observed, particularly in the immunocompromised patient. Multidisciplinary management, including intravenous antibiotics and timely surgical intervention, was vital in achieving favorable outcomes. Conclusion: This case series underscores the complexity of orbital cellulitis, particularly when complicated by systemic conditions or coexisting orbital pathologies. Accurate and timely diagnosis using radiological imaging, coupled with a multidisciplinary approach, is critical in managing this condition effectively. Future research should continue to explore the impact of emerging antibiotic resistance and refine treatment protocols for high-risk populations. [ABSTRACT FROM AUTHOR]

Sir William Macewen, a Scottish surgeon, made significant contributions to neurosurgery, beginning with his successful brain tumor resection in 1879. Born in 1848, Macewen's upbringing in a maritime family fostered a practical approach to learning. Macewen's pivotal brain tumor surgery demonstrated his adherence to antiseptic practices and precise localization techniques. Controversy arose regarding his precedence in neurosurgery, which he addressed through meticulous documentation and public presentations. His diagnostic prowess extended to cases of cerebral abscesses and intracranial conditions, relying on clinical observations rather than imaging technology. His 1893 monograph on brain infections remains influential in neurosurgery. Beyond neurosurgery, Macewen was innovative in asepsis, hernia repair, and bone surgery. His legacy as a clinical educator and advocate for surgical advancements earned him widespread recognition. This historical review aimed to explore and evaluate the published literature regarding Macewen's early brain tumor surgeries, seeking to establish his precedence over later surgeons including Godlee and Bennett. [ABSTRACT FROM AUTHOR]

Objectives: Central nervous system tuberculosis (TB) (CNS-TB) can occur in several forms, including intracranial tuberculoma, tuberculous brain abscess, TB meningitis (TBM), and spinal TB. Early treatment can save lives and prevent severe neurological complications. This study aimed to describe the characteristics and post-treatment outcomes of patients with CNS-TB and identify factors associated with poor outcomes. To the best of our knowledge, this is the largest CNS-TB study till date published in Saudi Arabia. Methods: This retrospective cohort study included all patients diagnosed with CNS-TB in three tertiary centers in Saudi Arabia (King Abdulaziz Medical City in Jeddah, King Abdulaziz Medical City in Riyadh, and Al-Noor Specialist Hospital in Makkah) between 2009 and 2019. Data of patients' demographics, co-morbidities, presenting symptoms, type of CNS-TB, medical and surgical treatments, and outcome after completion of treatment were obtained from medical records. Treatment outcomes were categorized using the modified Rankin Scale for neurological disability. Results: A total of 140 participants were included in this study from 2009 to 2019. Good outcomes were achieved in approximately 65% of cases, whereas 35% had poor outcomes based on the modified Rankin Scale. Glasgow Coma Scale score ≤10 at presentation and TBM/tuberculoma were significantly associated with poor outcomes. Moreover, the use of corticosteroids, more than three anti-TB medications, and surgical interventions were not significantly associated with good or poor outcomes. Discussion: CNS-TB is associated with a high burden of long-term neurological morbidity. Early detection and treatment are crucial to prevent serious complications and decrease morbidity and mortality. [ABSTRACT FROM AUTHOR]

We encountered a case involving a brain abscess in the right frontal lobe of a 12-year-old girl who was diagnosed with a chief complaint of headache and nausea. Left maxillary sinusitis, a dental infection related to dental caries and apical periodontitis, was observed in the left maxillary first molar in addition to left frontal sinusitis also being present. In addition to administering antibacterial agents, extraction of the left maxillary first molar and drainage of the paranasal sinuses and brain abscess were performed. Follow-up over the course of 1 year and 5 months indicated that the patient had progressed without any sequelae; therefore, the prognosis was good. In this case, although bone destruction was observed in the posterior wall of the frontal sinus, which could be a route for bacteria to enter the skull, we considered the possibility of direct invasion from the same site to be low because the brain abscess occurred on the opposite side. We believe that a route for hematogenous invasion from apical periodontitis, in addition to sinusitis, is also possible. Regardless of the route, the outset was an infection in the dental field; therefore, this case reaffirmed the importance of dental cavity treatment in childhood. [ABSTRACT FROM AUTHOR]

Introduction: The emergence of carbapenem-resistant hypervirulent Klebsiella pneumoniae (CR-hvKP) presents a formidable challenge to public health and clinical medicine. This dual phenotype of hypervirulence and multi-drug resistance often complicates treatment options, leaving patients with limited antimicrobial regimens. Consequently, adverse clinical outcomes and high mortality rates are common. Ceftazidime-avibactam (CAZ-AVI) is recognized globally as a critical option for treating infections caused by resistant gram-negative bacteria. Case Report: We present a case of invasive Klebsiella pneumoniae liver abscess syndrome caused by a CR-hvKP infection. The patient exhibited a bloodstream infection, lung and liver abscesses, and suppurative meningitis, eventually developing a brain abscess. Treatment with a combination of meropenem and CAZ-AVI led to a favorable clinical outcome. Conclusion: This case report indicates that combining CAZ-AVI with an antimicrobial agent that is in vitro non-susceptible (carbapenems in this case) is safe and effective for treating severe, multi-site infections caused by CR-hvKP, including central nervous system infections. This case serves as a clinical reference for managing similar patients in practice. [ABSTRACT FROM AUTHOR]

Pulmonary arteriovenous malformations are rare, abnormal, low-resistance vascular structures that connect a pulmonary artery to a vein. They are common in patients with hereditary hemorrhagic telangiectasia; however, acquired malformations can occur in patients with underlying diseases such as chest trauma, hepatic cirrhosis, and mitral stenosis. Pulmonary arteriovenous malformations bypass the normal pulmonary capillary bed and result in intrapulmonary right-to-left shunts, which may cause central nervous system complications such as brain abscesses or ischemic stroke. Brain abscesses related to pulmonary arteriovenous malformations are not uncommon; however, reports of their occurrence during chemotherapy are limited. Here, we report the case of a 68-year-old woman with bilateral pulmonary arteriovenous malformations and appendiceal adenocarcinoma who developed a bacterial brain abscess during chemotherapy. The infection was treated using abscess drainage and antibiotic therapy. After the brain abscess healed, catheter embolization was performed on the pulmonary arteriovenous malformations and chemotherapy was resumed. The present case suggests that if a patient with a malignancy has a pulmonary arteriovenous malformation, clinicians should pay special attention to complications such as brain abscesses during chemotherapy. For patients who do not urgently need chemotherapy, embolization of the pulmonary arteriovenous malformation before chemotherapy may be a better treatment option.

Abstract Nocardia farcinica is the most pathogenic Nocardia, which is easy to disseminate. It can be caused by trauma, and even lead to severe lung or central nervous system infection. This report covers a case of Nocardia brain abscess in an HIV patient, who underwent resection of the brain abscess, followed by anti-infective therapy with sulfamethoxazole and meropenem, and eventually made a good recovery. The mortality rate of Nocardia farcinica brain abscess has been attributed to the severity of the underlying disease, the difficulty in identifying the pathogen, and its inherent resistance to antibiotics, leading to inappropriate or late initiation of treatment. Medication should follow the principle of sufficient dosage and sufficient course of treatment.

Abstract Background An increased incidence of brain abscesses was observed post-COVID-19 pandemic. However, it remains unclear how the COVID-19 pandemic influenced the epidemiology of brain abscesses. This study aimed to investigate changes in the epidemiology of brain abscesses pre- and post-COVID-19 pandemic. Methods A retrospective study of demographic, clinical, radiological, and laboratory characteristics of patients with brain abscesses in Children's Hospital of Soochow University from 2015–2023 was performed. Results A total of 34 patients were admitted to the hospital during the study. The post-COVID-19 cohort had an average of 5.5 cases/year, which is a 129.2% increase compared to the pre-COVID-19 cohort's average of 2.4 cases/year. Additionally, the rates of fever upon admission (86.36% vs 50%, p = 0.04) and experiencing high-grade fever within 6 weeks before admission (40.91% vs 8.33%, p = 0.044) were significantly increased. A potential rise in the rate of intensive care unit admission was observed (36.36% vs 8.33%, p = 0.113). The average value of globulin in the post-COVID cohort was significantly higher compared to the pre-COVID cohort (31.60 ± 5.97 vs 25.50 ± 5.08, p = 0.009). Streptococcal infections were the predominant cause of brain abscesses in both cohorts (40% vs 43.75%, p = 0.57). Conclusions There was a significant increase in the number of brain abscess patients after the COVID-19 pandemic. This underscores the importance of children receiving the streptococcal vaccine.

Abstract Background Brain abscesses caused by Listeria monocytogenes (L. monocytogenes) are very rare and lead to high mortality risk. To our knowledge, no prior studies have been reported in Malaysia on the brain abscess caused by L. monocytogenes. Case presentation In this case report, we present 33-year-old female patient with known case of systemic lupus erythematosus (SLE) whom developed fever and left-sided body weakness. Initially, she was suspected to have high-grade glioma or lymphoma because the imaging shows multiple irregulars peripherally enhancing intra axial lesions with marked vasogenic edema. However, tissue biopsy confirmed L. monocytogenes infection. This report also presents the CT and MRI findings of this SLE patient with unusual L. monocytogenes brain abscesses. The patient was then treated with IV ampicillin, IV meropenem and IV amphotericin. Conclusions Brain abscess caused by L. monocytogenes is uncommon and lethal. Therefore, it should be carefully examined in patients who are at high risk of listeriosis.

Electrical burn injuries to the scalp are at risk of extensive tissue damage and neurological complications. We present the case of a patient who came into contact with a high-voltage power line while cherry picking, resulting in a large full-thickness scalp defect. Early on in his presentation, he developed progressive global weakness which remained relatively static during his admission. An incidental finding of an extradural abscess complicated his management, requiring urgent surgical intervention with definitive tissue coverage. The scalp was reconstructed using a free myocutaneous anterolateral thigh flap. There were no postoperative complications. Following rehabilitation, the patient was discharged home with limited functional recovery. He mobilises independently with a wheelchair and requires full-time carers.

Abstract Nocardia is widely distributed in the natural environment and typically cause opportunistic infections. However, it is important to note that the pathogenicity of different Nocardia species may vary significantly. Here we reported the first case of brain abscess caused by Nocardia beijingensis (N. beijingensis) infection in China. A 70-year-old male immunocompetent individual came to our hospital for treatment due to headache. After examination, it was found that he had a brain abscess caused by N. beijingensis. By utilizing a combination of surgical intervention and antibiotic therapy, the patient ultimately achieved full recovery. In addition, we isolated this strain and displayed its ultrastructure through scanning electron microscopy. The phylogenetic tree was analyzed by 16 S rRNA sequence. A literature review of N. beijingensis infections in all immunocompetent and immunocompromised patients was presented. It highlighted that abscess formation appears to be a common manifestation of N. beijingensis infection, and N. beijingensis has become an emerging pathogen in immunocompetent individuals.

Abstract Background Listeria monocytogenes brain abscess is a rare phenomenon that is common in immunocompromised patients. Streptococcus equinus brain abscess has never been reported in the literature to our knowledge. In this case report, we describe a case of brain abscess secondary to Listeria monocytogenes and Streptococcus equinus in an immunocompetent patient with transient low CD4 count. Case presentation A 27-year-old white, male patient, previously healthy, nonalcoholic, and occasional smoker, presented to the emergency department for confusion and headache. The patient was found to have a left parietal abscess, which was drained and the fluid was sent for culture. Culture grew Listeria monocytogenes and Streptococcus equinus. The patient was treated with intravenous ampicillin followed by oral amoxicillin for a total of 6 weeks. The CD4 count was low initially. However, after the resolution of the infection, the CD4 count came back within normal range. Another brain magnetic resonance imaging was done that showed a significantly decreased hyperintensity within the left parietal subcortical white matter at the site of surgery with significantly decreased enhancement and almost total resolution of the previous abscess. Conclusion Transient low CD4 count is a rare phenomenon that exposes patients to unusual and atypical infections. Since low CD4 count is transient, patients treated promptly recover from their illness. Our patient developed a Listeria monocytogenes and Streptococcus equinus brain abscess, which is considered rare and has not been previously described in the literature to our knowledge.

Vein of Galen malformation (VGM) is a rare congenital, uncommon intracerebral vascular anomaly rarely complicated with the development of brain abscess as secondary to primary infection or after endovascular treatment. We report a very rare finding of a vein of Galen aneurysm associated with a large brain abscess at the time of diagnosis. A 12-year-old boy with a high-grade fever, severe headache, and recurrent episodes of convulsions came into the radiology department of Kassala Advanced Diagnostic Center. On a Siemens 16-slice scanner, brain non-contrast enhanced computed tomography (NECT) and contrast enhanced CT (CECT) was used to determine the source of the acute headache and convulsions which revealed a right frontal peripherally enhancing cystic lesion measuring 5.7 × 4.7 × 5.3 cm2 surrounded by massive vasogenic edema causing mass effect with midline shift to the left side by 1.5 cm suggestive of brain abscess. There is evidence of another avidly enhancing lesion seen within the third ventricle continuous with a straight sinus surrounded by extensive vascular loops consistent with an aneurysm of the vein of Galen, it was causing compression of the cerebral aqueduct with upstream mild hydrocephalus with dilated both lateral ventricles. Late presentation, diagnosis, and treatment also lead to an increase in the morbidities and mortalities of such case conditions. Urgent intervention should be considered for better outcomes.

Abstract Background Nocardia is an ubiquitous soil organism. As an opportunistic pathogen, inhalation and skin inoculation are the most common routes of infection. Lungs and skin are the most frequent sites of nocardiosis. Testis is a highly unusual location for nocardiosis. Case presentation We report the case of an immunocompromised 75-year-old-man admitted for fever of unknown origin. He presented with skin lesions after gardening and was first suspected of Mediterranean spotted fever, but he did not respond to doxycycline. Then, physical examination revealed new left scrotal swelling that was compatible with a diagnosis of epididymo-orchitis. The patient’s condition did not improve despite empirical antibiotic treatment with the onset of necrotic scrotal abscesses requiring surgery. Nocardia brasiliensis yielded from the removed testis culture. High-dose trimethoprim-sulfamethoxazole and ceftriaxone were started. Multiple micro-abscesses were found in the brain and spinal cord on imaging studies. After 6 weeks of dual antibiotic therapy for disseminated nocardiosis, slight regression of the brain abscesses was observed. The patient was discharged after a 6-month course of antibiotics and remained relapse-free at that time of writing these lines. Trimethoprim-sulfamethoxazole alone is meant to be pursued for 6 months thereafter. We undertook a literature review on previously reported cases of genitourinary and urological nocardiosis; to date, only 36 cases have been published with predominately involvement of kidney, prostate and testis. Conclusions To the best of our knowledge, this is the first case of Nocardia brasiliensis simultaneously infecting skin, testis, brain and spinal cord in an immunocompromised patient. Knowledge on uncommon forms of nocardiosis remains scarce. This case report highlights the difficulty of diagnosing atypical nocardiosis and the importance of prompt bacteriological sampling in case of empirical antibiotics failure.

AbstractBackgroundCase reportConclusionsCardiac myxoma is a rare, benign tumour that commonly originates in the left atrium and may lead to embolic events. Parenchymal brain metastases represent a rare neurological manifestation. While surgical intervention is commonly used, there is limited information on long-term outcomes after radiotherapy treatment. This report describes a case of successful treatment of haemorrhagic brain metastases with radiotherapy and offers a literature review of long-term results after radiotherapy treatment.A 49-year-old woman presented with multiple haemorrhagic brain lesions and a cardiac mass. Surgical removal of the cardiac mass and the symptomatic brain lesion confirmed metastatic cardiac myxoma. Post-surgery, she experienced fatigued and neurocognitive impairment and was closely monitored. However, the metastases progressed. She subsequently received whole-brain radiotherapy, resulting in complete response. Seven years later, she remains in remission, although with enduring neurocognitive impairment.Whole-brain radiotherapy can provide long-term control of haemorrhagic brain metastases arising from cardiac myxoma. Radiotherapy dose and treatment volume need careful consideration to reduce toxicity. [ABSTRACT FROM AUTHOR]

A bacterial brain abscess (BA) is a focal brain infection with largely unknown long-term implications. This prospective study assessed the frequency of fatigue and symptoms of depression at 8 weeks and 1 year after BA and examined the relationship between fatigue, depressive symptoms, and cognitive status. Twenty BA-patients (age 17–73; 45% female) were assessed for fatigue, depression, memory, and executive functions. Fatigue rates were 40-65% at 8 weeks and 25-33% at 1 year on various fatigue questionnaires. Patient Health Questionnaire indicated symptoms of depression in 10% at the 8-week follow-up only. Relevant comorbidities and vocational outcomes were not associated with fatigue or symptoms of depression. Mean fatigue scores improved significantly between the two-time points. Greater fatigue was related to subjective problems with working memory, inhibition, self-monitoring, and emotional control and worse objective verbal memory performance. Symptoms of depression were associated with one out of two fatigue measures. We conclude that fatigue is common in the first year after BA, and higher levels of fatigue are related to more cognitive problems. Symptoms of clinical depression were rare. These findings underscore fatigue as an important consequence of BA and emphasize the necessity for targeted rehabilitation interventions. [ABSTRACT FROM AUTHOR]

Background: Listeria monocytogenes brain abscess is a rare phenomenon that is common in immunocompromised patients. Streptococcus equinus brain abscess has never been reported in the literature to our knowledge. In this case report, we describe a case of brain abscess secondary to Listeria monocytogenes and Streptococcus equinus in an immunocompetent patient with transient low CD4 count. Case presentation: A 27-year-old white, male patient, previously healthy, nonalcoholic, and occasional smoker, presented to the emergency department for confusion and headache. The patient was found to have a left parietal abscess, which was drained and the fluid was sent for culture. Culture grew Listeria monocytogenes and Streptococcus equinus. The patient was treated with intravenous ampicillin followed by oral amoxicillin for a total of 6 weeks. The CD4 count was low initially. However, after the resolution of the infection, the CD4 count came back within normal range. Another brain magnetic resonance imaging was done that showed a significantly decreased hyperintensity within the left parietal subcortical white matter at the site of surgery with significantly decreased enhancement and almost total resolution of the previous abscess. Conclusion: Transient low CD4 count is a rare phenomenon that exposes patients to unusual and atypical infections. Since low CD4 count is transient, patients treated promptly recover from their illness. Our patient developed a Listeria monocytogenes and Streptococcus equinus brain abscess, which is considered rare and has not been previously described in the literature to our knowledge. [ABSTRACT FROM AUTHOR]

Background: Cerebellar abscesses are rare, life-threatening infections often originating from bacterial sources, while metastatic brain lesions from lung adenocarcinoma are relatively common. However, the coexistence of a cerebellar abscess secondary to metastatic lung adenocarcinoma is exceedingly rare and presents unique diagnostic and management challenges. Case Presentation: We report a case of a 35 year-old Pakistani female patient with persistent headaches, nausea, and vertigo, who was found to have a large cerebellar mass with features suggestive of metastatic lung adenocarcinoma. Further investigation revealed a concomitant cerebellar abscess. Surgical excision and broad-spectrum antibiotics were initiated, resulting in a favorable outcome. Conclusion: This case showcases the rarity and complexity of cerebellar abscesses due to metastatic lung adenocarcinoma. Timely intervention, including surgery and targeted therapy, is crucial for successful management. Further research is needed to enhance treatment strategies. [ABSTRACT FROM AUTHOR]

Fusobacterium nucleatum is a commensal pathogen typically found in the oral cavity, digestive tract, and urogenital system which has been associated with Lemierre's syndrome, periodontal diseases, sinusitis, endocarditis, and intra-abdominal and brain abscesses. Our case is of a 62-year-old male who presented with headaches, nausea, and vision loss. Brain imaging identified a right occipito-parietal brain abscess. Following surgery and abscess drainage, Fusobacterium nucleatum was isolated from intraoperative cultures, and the infectious disease service was consulted for antibiotic recommendations. Additional history uncovered that he had also been experiencing night sweats, generalized weakness and 40-pound weight loss for 2 months, and had a prior history of colon polyps and diverticulitis. Furthermore, the patient disclosed having substandard oral hygiene practices, particularly in relation to the care of his dental appliances. Despite negative blood cultures, suspicion for hematogenous seeding was high. Imaging ruled out periodontal disease, but identified a colovesical fistula and liver abscesses, indicating potential translocation of bacteria via portal circulation to his liver. Echocardiogram workup revealed a 1-cm mobile vegetation on the aortic valve. His course was complicated by breakthrough seizures, renal failure, and drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome, and he ultimately completed 16 weeks of antibiotics. This case illustrates an uncommon presentation of brain abscess in an immunocompetent adult, with a prior episode of diverticulitis as the probable primary infection source, leading to development of a colovesical fistula and bacterial dissemination to the liver, heart, and brain. It highlights the importance of a comprehensive diagnostic approach, including consideration of atypical pathogens in immunocompetent adults. [ABSTRACT FROM AUTHOR]

An 11-year-old neutered male Maltese presented with a 2-day history of persistent vomiting and lethargy. Abdominal ultrasonography revealed a hypoechoic marginal mass with gastric wall thickening in the pyloric region of the stomach. Computed tomography revealed a non-contrast-enhanced mass in the pyloric antrum causing pyloric outflow obstruction. Imaging studies suggested a tumor and surgical treatment was performed due to the deterioration of the patient's condition. The pyloric mass was excised, and the stomach and duodenum were anastomosed via pylorectomy and gastroduodenostomy (Billroth I procedure). Postoperatively, the pyloric outflow obstruction resolved, clinical symptoms improved, and no significant complications were observed. Histopathological examination revealed a gastric abscess characterized by a mass-like area with abundant necrosis. Angular fragmented crystalline foreign materials were observed within the lesion. To our knowledge, this is the first reported case of an intramural gastric abscess caused by fragmented crystalline foreign materials in a dog. Although rare, this case highlights the importance of considering gastric abscesses in the differential diagnoses of gastric masses. If the cause of the gastric abscess is an invisible foreign material, postoperative follow-up should be considered to monitor for potential recurrence. [ABSTRACT FROM AUTHOR]

Objective: Unknown etiology Background: The tip-flexible suctioning ureteral access sheath (TFS-UAS) can be bent under flexible ureteroscopes, which facilitates removal of renal stone segments by irrigation and suctioning effects. Small-scale comparative studies found it safer and more efficacious than traditional UAS. However, complications such as renal abscess were not documented after TFS-UAS combined with digital FURS. Case Report: A 57-year-old woman had right lumbar pain that persisted for 1 year. A plain computed tomography (CT) scan revealed multiple renal pelvicalyceal stones (maximum diameter 20×9 mm). She was admitted to undergo elective surgery with a TFS-UAS combined with digital flexible ureteroscopic lithotripsy. The operation was deemed successful and she was given postoperative antibiotics for 2 days before discharge. Eight postoperative days later, she was admitted to the emergency department due to high fever (39.6°C). Plain CT revealed intact double-J stents and no abnormalities. She was readmitted to the urological department to receive antibiotic therapy, which progressed to septic shock (blood pressure 80/50 mmHg) and required immediate transfer to the intensive care unit. Contrast-enhanced CT revealed a right renal abscess. She was promptly resuscitated and given stronger antibiotics. She recovered well and was discharged with 2-week oral levofloxacin treatment. Follow-up ultrasound found no renal abscess. Conclusions: While TFS-UAS with digital FURs is an effective approach for multiple renal stones, there is a risk of postoperative renal abscess, possibly due to altered intrarenal pressure. [ABSTRACT FROM AUTHOR]

Aim Methods Results Conclusion After the relaxation of COVID‐19 mitigation measures, we observed a dramatic increase in pyogenic infections. Based on this observation, we retrospectively analysed all cases of invasive bacterial infections of brain, lung and complicated ear–nose–throat (ENT) infections, in the period from 1 August to 31 March from the years 2018–2019 to 2022–2023.The study was conducted in two Paediatric Emergency Departments, at IRCCS ‘Burlo Garofolo’ of Trieste and at Treviso Hospital. Electronic medical records were searched for all cases with a definitive diagnosis at discharge of mastoiditis, suppurative cervical lymphadenitis, retropharyngeal, parapharyngeal and peritonsillar abscess (ENT group), bacterial brain abscesses, epidural empyema, subdural empyema (central nervous system group), thoracic empyema and necrotising pneumonia (lung group).In 2022–2023, we observed an increase in infections compared to the previous years. Total number of cases were 22, 29, 8, 27 and 63 in 2018–2019, 2019–2020, 2020–2021, 2021–2022 and 2022–2023, respectively. The greater increase occurred in thoracic empyema, with a peak incidence of +120% in 2022–2023 in respect of 2021–2022.We reported an important increase in paediatric bacterial complicated infections in two North East Italian regions, possibly correlated with the relaxation of COVID‐19 social distancing measures. [ABSTRACT FROM AUTHOR]

To summarize the preliminary application experience of intraoperative ultrasound with burr hole probe in minimally invasive neurosurgery and to explore its application value. Thirty-one patients who underwent intraoperative ultrasound guided puncture with burr hole probe in our center from August 2018 to May 2024 were collected, including 16 cases of ventriculoperitoneal shunt operation, 6 cases of assisted stereotactic needle biopsy, 3 cases of intracranial pressure probe implantation in lateral ventricle, 3 cases of brain abscess puncture for external drainage, and 3 cases of intracranial cyst puncture and peritoneal drainage. During the procedures, the burr hole probe was used to locate the intracranial targets and guide the puncture. The postoperative computed tomography (CT) scans or combined postoperative pathological results could verify the accuracy of puncture. In addition, the intervention effect and recovery status of patients were also recorded. The intraoperative ultrasound with burr hole probe could clearly display all the purposed targets and accurately guide the puncture procedures in all cases. All patients achieved satisfactory diagnostic and therapeutic results without new neurological dysfunction and serious complications. The intraoperative ultrasound with burr hole probe is an effective device for demonstrating intracranial structures. It not only enables minimally invasive and precise diagnosis or treatment of many neurosurgical diseases, but also is simple and safe to operate, which has important promotional value in the neurosurgery. [ABSTRACT FROM AUTHOR]

Recent advances in neuroendoscopic surgery have led to the minimally invasive treatment of brain abscesses using various endoscopy techniques. The endoscopic diving technique (EDT) involving the formation of fluid lenses to improve the visibility of the endoscope has been reported to be useful in the endoscopic endonasal approach (EEA) for pituitary and midline cranial base lesions. Here, we report a case of brain abscess treated endoscopically using EDT in cylinder surgery. A 29-year-old man with 11q trisomy syndrome developed a fever and progressive right hemiparesis was observed. A diagnosis of a brain abscess was made based on neuroradiological imaging, and endoscopic irrigation and drainage with EDT via a transparent endoscopic sheath were performed, which provided a clear operative field and allowed satisfactory irrigation without bacterial contamination. The bacterium identified by PCR was Streptococcus intermedius, and antibiotic therapy was administered. Postoperatively, his symptoms gradually improved. This is the first technical case report describing the clinical experience of EDT in brain abscess surgery. EDT may be a useful technique not only in EEA but also in cylinder surgery for brain abscesses. [ABSTRACT FROM AUTHOR]

We report a case of Klebsiella pneumoniae bacteraemia in an 80-year-old man in France with no history of travel to Asia, complicated by endogenous endophthalmitis, multiple cerebral microbleeds and hepatic microabscesses, associated with a Bentall endocarditis. Hypervirulence pathotype was suggested based on clinical picture, bacterial isolate genomic sequence and hypermucoidy. Interestingly, the isolate had the non-K1/K2-capsular serotype locus KL113-like, carried a KpVP-1-like virulence plasmid, and belonged to the emerging sublineage SL660 (comprising the sequence type ST660). [ABSTRACT FROM AUTHOR]

Background: Group A streptococcal(GAS) meningitis is a severe disease with a high case fatality rate. In the era of increasing GAS meningitis, our understanding about this disease is limited. Purpose: To gain a better understanding about GAS meningitis. Methods: Five new cases with GAS meningitis were reported. GAS meningitis related literatures were searched for systematic review in PUBMED and EMBASE. Case reports and case series on paediatric cases were included. Information on demographics, risk factors, symptoms, treatments, outcomes, and emm types of GAS was summarized. Results: Totally 263 cases were included. Among 100 individuals, 9.9% (8/81) had prior varicella, 11.1% (9/81) had anatomical factors, and 53.2% (42/79) had extracranial infections. Soft tissue infections were common among infants (10/29, 34.5%), while ear/sinus infections were more prevalent in children ≥ 3 years (21/42, 50.0%). The overall case fatality rate (CFR) was 16.2% (12/74). High risk of death was found in patients with shock or systemic complications, young children(< 3 years) and cases related to hematogenic spread. The predominate cause of death was shock(6/8). Among the 163 patients included in case series studies, ear/sinus infections ranged from 21.4 to 62.5%, while STSS/shock ranged from 12.5 to 35.7%, and the CFR ranged from 5.9 to 42.9%. Conclusions: A history of varicella, soft tissue infections, parameningeal infections and CSF leaks are important clinical clues to GAS in children with meningitis. Young children and hematogenic spread related cases need to be closely monitored for shock due to the high risk of death. [ABSTRACT FROM AUTHOR]

A bacterial brain abscess may damage surrounding brain tissue by mass effect, inflammatory processes, and bacterial toxins. The aim of this study was to examine cognitive and functional outcomes at 8 weeks and 1 year following acute treatment. Prospective study of 20 patients with bacterial brain abscess (aged 17–73 years; 45% females) with neuropsychological assessment at 8 weeks and 1 year post-treatment. Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) and Patient Competence Rating Scale (PCRS) were used to assess everyday functioning and administered to patients and informants. Cognitive impairment was found in 30% of patients at 8 weeks and 22% at 1 year. Significant improvements were seen on tests of perceptual reasoning, attention, verbal fluency, and motor abilities (p < 0.05). At 1 year, 45% had returned to full-time employment. Nevertheless, patients and their informants obtained scores within the normal range on measures of everyday functioning (PCRS and BRIEF-A) at 8 weeks and 1 year. No significant improvements on these measures emerged over time. Residual long-term cognitive impairment and diminished work ability affected 22% and 45% of patients one year after BA. Persistent cognitive impairment emphasizes the importance of prompt acute treatment and cognitive rehabilitation. [ABSTRACT FROM AUTHOR]