Clinical and Microbiological Factors Associated With Abscess Formation in Adult Acute Epiglottitis

Objectives: To evaluate clinical and microbiological findings that are correlated with abscess formation in adult acute epiglottitis (AE). Methods: We reviewed 140 cases of adult AE. Demographic, clinical, imaging, and microbiological findings are analyzed for all patients with AE in comparison to those with epiglottic abscess (EA). Results: A total of 113 patients presented with AE and 27 presented or progressed to EA (19.3%). Age, sex, seasonality, smoking, body mass index (BMI), and comorbidities were statistically insignificant between the 2 groups. Muffled voice ( P < .013), respiratory distress ( P < .001), and pre-existence of epiglottic cyst ( P < .001) are symptoms and signs connected with abscess formation. A total of 120 patients were treated conservatively. Surgical treatment was performed on 20 patients with EA. About 72 out of 80 cultures revealed monomicrobial infection. Mixed flora was isolated in 8 patients with EA. Streptococcus was isolated in 51 out of 80 positive cultures (64%). Haemophilus Influenza ( Hib) was not isolated in any sample. EA and mixed flora relates to a higher rate of airway intervention ( P < .001). Conclusion: A high level of suspicion for abscess formation is required if clinical examination reveals dyspnea, muffled voice, or an epiglottic cyst in adult with AE. The existence of EA doubles the duration of hospitalization. EA is typically found on the lingual surface of the epiglottis. Supraglottic or deep neck space expansion should be treated surgically. EA is associated with a mixed flora and a higher rate of airway obstruction. Streptococcus is discovered to be the most common pathogen.

Risk factors for lethal outcomes after surgical treatment of patients with chronic periprosthetic hip joint infection

Introduction Periprosthetic joint infections (PJI) are serious complications of total hip arthroplasty (THA) and affect the patient's life expectancy. The aim of the study was to identify independent factors influencing the risk of death in patients with PJI after revision THA. Materials and methods The study included 51 lethal outcomes in patients with chronic PJI of the hip. Results and discussion In our cohort of 434 patients, 13 (2.99 %) patients died within the first year after surgery (p > 0.05), which is 2.2 times less than similar published data. The result of gender analysis showed no statistically significant differences in the risk of death between men and women (OR1.05 CI 0.59–1.89, p = 0.87). It was found that in patients over 70 years old, the risk of death was significantly higher (OR 2.05 CI 1.09–3.87, p = 0.031). Additional independent risk factors of death are diseases of the cardiovascular system. It was not possible to find a statistically significant effect of the nature of infection on the risk of death: no growth (OR 2.23, CI 0.52–9.61), monomicrobial infection (OR 1.98, CI 0.45–8, 73), polymicrobial infection (OR 3.2, CI 0.71–14.45, p > 0.05). Conclusion The mortality rate during the first year after revision THA in patients with PJI was 2.99 %, which is lower than the results of other researchers. In the next 2–3 years, the rate of death increases 3.9 times. The main independent risk factors are the age of patients and concomitant diseases of the cardiovascular system.

Fatal Necrotising Soft Tissue Infection Caused by Escherichia coli in Alcoholic Liver Cirrhosis

NSTI caused by E. coli monomicrobial infection is an extremely severe condition with high mortality. This report presented a case of monomicrobial NSTI caused by E. coli with septic shock in a patient with alcoholic liver cirrhosis and mentioned both pathogen virulence factors and host susceptibility factors.

Efficacy of temocillin against MDR Enterobacterales: a retrospective cohort study

Objectives EUCAST recently advised against temocillin use, except for non-serious urinary tract infections (UTI) caused by Escherichia coli, Klebsiella spp. (except Klebsiella aerogenes) and Proteus mirabilis (EKP) treated with a dose of 2 g q8h. We aimed to analyse our practice in the context of a larger temocillin use in France. Patients and methods All ≥3 day temocillin prescriptions from 2016 to 2019 were reviewed, with reference to French recommendations and a susceptibility breakpoint of 8 mg/L. The primary outcome was early clinical failure (antibiotic switch, relapse or death within 10 days after the completion of antibiotic treatment). Results Overall, 153 cases were analysed: 123 cases of UTI (80.4%) and 133 cases of monomicrobial infection with Enterobacterales (86.9%). A total of 160 Enterobacterales were isolated, comprising 108 (67.5%) ESBL producers and 30 (20.7%) non-EKP species. The rate of early clinical failure was 9.2% and was significantly lower for UTI compared with non-UTI (4.9% versus 26.7%, P = 0.001) and for sepsis compared with severe sepsis or septic shock (6.2% versus 25%, P = 0.011). It was not different between 2 g q12h and 2 g q8h doses (10% versus 7.4%, P = 0.81) and between EKP and other Enterobacterales (8.7% versus 14.3%, P = 0.41). Conclusions EUCAST recommendations on urinary isolates seem to be too restrictive. Our data support the efficacy of temocillin at a dose of 2 g q12h to treat patients with non-severe complicated UTI caused by MDR Enterobacterales with an MIC of ≤8 mg/L, whatever the species.

Escherichia hermannii as the sole cause of osteomyelitis in a patient with an open tibial shaft fracture

Escherichia hermannii is a rare monomicrobial cause of infection in humans. E. hermannii has never before been reported as the sole isolate from an infected open tibia fracture. We present a case of E. hermannii infection after a type III open tibia fracture. The patient was initially treated with irrigation and debridement, open reduction internal fixation and primary wound closure. However, after 8 weeks, he developed a draining wound and infection at the fracture site. He required a repeat debridement, hardware removal, external fixation and 6 weeks of intravenous ceftriaxone for treatment. At 2-year follow-up, he remains infection free, asymptomatic and continues to work with excellent functional outcomes. This case adds to the growing literature that evidences E. hermannii as an organism that can be pathogenic, virulent and cause monomicrobial infection.

Relation of intraoperative bile culture to the postoperative morbidity in hepatopancreatic and biliary surgeries

Background: The reported incidence of bacteria in bile is extremely variable 8%-42%. Several authors have been able to correlate the bacteria cultured from bile at operations with those subsequently causing wound infections and septicemia in postoperative period.Methods: This study was a prospective study conducted in Department of Surgical Gastroenterology at Sher-i-Kashmir Institute of Medical Sciences from July 2016 to June 2018. A total of 100 patients were included in study.Results: Mean age of the patients was 43.7±15.01, The most common organism found in our study was Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae) in 33.9%, E.coli and Enterococcus faecalis 21%, The monomicrobial infection was due to E coli 11.3%, The patients with bactibilia had more of wound infection 54.8% and intra-abdominal collections 17.7%, most common organism from bile was E. coli and K. pneumonia and same organisms were also cultured from wound sites.Conclusions: The preoperative intervention group should be considered potentially infected, requires careful operative technique to avoid spillage of bile on wound surfaces to decrease infection rates and morbidity.

Diabetic Hand Infection: An Emerging Challenge

Background: Hand infection in diabetics is an often ignored but challenging condition. If not addressed effectively, it may result in long term disability, contracture, amputation and even death. Methods: From August 2014 to December 2015, a study was done in our centre, where 49 diabetic hand infection cases were analyzed in two groups, superficial and deep hand infection. Results: Mean age of the patients was 51.63 years. There were 21 superficial infections and 28 deep infections. Cause of infection was unknown or spontaneous in 16 cases, traumatic laceration or crush in 14 patients, following minor prick in 10 cases. Most of the cases were the results of neglected minor wound. Forty-one patients were insulin dependent. Five cases were diagnosed as diabetic at the time of treatment. Four patients were treated conservatively and 45 (92%) cases required operation in the form of incision, drainage and debridement. In 16 (35%) cases, wound was left open and was healed by secondary intention following regular dressing. In five patients, wound was closed secondarily. Partial thickness skin graft was applied in 15 cases. Seven patients were treated with flap coverage. Partial digital or ray amputation were done in 16 cases. All fingers except thumb were amputated in one case and amputation from wrist was done in another patient. Wound swabs were taken, and antibiotics were changed or continued accordingly. But reports of 26 cases were available. No growth was found in four cases, monomicrobial infection was found in 15 patients and polymicrobial in seven cases. Infection resolved with healing in 47 cases. Two patients died during treatment from sepsis, both were insulin dependent, had associated renal failure and from deep infection group. One patient developed severe mental disorder. Conclusions: For diabetic hand infection, early diagnosis and prompt treatment with appropriate antibiotics and emergency surgery with extensile incision is crucial. Primary amputation of the part could be life and limb saving.

Identification of Specific Components of the Eicosanoid Biosynthetic and Signaling Pathway Involved in Pathological Inflammation during Intra-abdominal Infection withCandida albicansandStaphylococcus aureus

ABSTRACTPolymicrobial intra-abdominal infections (IAIs) are a significant cause of morbidity and mortality, particularly when fungal pathogens are involved. Our experimental murine model of IAI involving intraperitoneal inoculation ofCandida albicansandStaphylococcus aureusresults in synergistic lethality (∼80%) due to exacerbated inflammation. Monomicrobial infection results in no mortality, despite a microbial burden and dissemination similar to those in a coinfection. In the coinfection model, the immunomodulatory eicosanoid prostaglandin E2(PGE2) was determined to be necessary and sufficient to induce mortality, implicating PGE2as the central mediator of the amplified inflammatory response. The aim of this study was to identify key components of the PGE2biosynthetic and signaling pathway involved in the inflammatory response and explore whether these can be targeted to prevent or reduce mortality. Using selective pharmacological inhibitors of cyclooxygenases (COX) or PGE2receptor antagonists in theC. albicans-S. aureusIAI mouse model, we found that inhibition of COX and/or blocking of PGE2receptor 1 (EP1) or PGE2receptor 3 (EP3) signaling reduced proinflammatory cytokine production, promoted interleukin-10 production, reduced cellular damage in the peritoneal cavity, and, most importantly, significantly improved survival. The greatest effect on survival was obtained by the simultaneous inhibition of COX-1 activity and EP1 and EP3 receptor signaling. Importantly, early inhibition of PGE2pathways dramatically improved the survival of fluconazole-treated mice compared with that achieved with fluconazole treatment alone. These findings indicate that COX-1 and the EP1 and EP3 receptors mediate the downstream pathological effects of PGE2during polymicrobial IAI and may serve as effective therapeutic targets.

Clinical & Microbiological profile of Fournier’s Gangrene in a Tertiary Care Hospital in Bangladesh : A prospective observational study

Background: Fournier’s gangrene is the necrotising fasciitis of the genitalia and perineum, with associated poly microbial infection. Evidence based data in the very recent years suggest that it is associated with significant and potential risk of organ failure or death.Aim: This study was designed to be conducted among the patients suffering from Fournier’s gangrene with a view to assess the probable prevalence rate of potentially adverse clinical consequences during course of treatment, overall mortality and to observe the microbiological pattern in our surgical practice.Method & materials: This cross sectional study was conducted among the 69 patients of Fournier’s gangrene in BIRDEM General Hospital, Dhaka, Bangladesh from Jan 10.2013 to Sept 01 .2016, using the purposive sampling method.Results: The results of this study reflects that majority (43.4%) of the study population were in 51 to 60 years age group( Mean age 43±1.7 years) in study population. By using the Laboratory Risk Indicator for Necrotizing Fasciitis (LRINEC) score, it was found that in most of the patients (approx 56.5%), a suspicious score ranging 06-08 was observed and only in 10.1% patients, a specific score of ?08 was observed. In 27.5% patients systemic complications like DIC, ARDS, MODS, MSOF and severe sepsis were observed in 1.4%, 4.3%, 10.1%, 4.3% and 5.7% cases respectively. Mortality rate was approximately 4.3%. Majority (84.1%) of the patients were associated with type 1 (Polymicrobial) bacterial infection, whereas in case of 15.9% patients, it was associated with type 2 (Monomicrobial) infection. Escherichia coli was the most frequently observed micro-organisms associated with approximately 39.1% of all cases. S. aureus, Staphylococcus pyogenes, Enterococci species, E.coli and Pseudomonas species were recorded to be associated with 17.4%, 27.5%, 21.7%, 39.1 and 10.1% cases respectively.Conclusion: This study suggests that Fournier’s gangrene is associated with significant systemic complications. Poly microbial infections are most predominant and E coli infection was commonest organism involved.Bangladesh Crit Care J March 2017; 5(1): 28-32

Unanticipated Multiplex PCR-Based Identification of Polymicrobial Blood Culture Resulting in Earlier Isolation, Determination of Susceptibilities, and Optimization of Clinical Care

We describe a case of polymicrobial bloodstream infection with six organisms identified by multiplex PCR that was initially thought to be a monomicrobial infection. Early recognition of specific Gram-positive, Gram-negative, and fungal organisms and resistance elements allowed significantly more rapid optimization of therapy.