scholarly journals A Case of Liver Abscess withDesulfovibrio desulfuricansBacteremia

2015 ◽  
Vol 2015 ◽  
pp. 1-4 ◽  
Author(s):  
Saho Koyano ◽  
Keita Tatsuno ◽  
Mitsuhiro Okazaki ◽  
Kiyofumi Ohkusu ◽  
Takashi Sasaki ◽  
...  
Keyword(s):  
Liver Abscess ◽  
Clinical Presentation ◽  
Anaerobic Bacteria ◽  
Desulfovibrio Desulfuricans ◽  
Clinical Specimens ◽  
Sulfate Reducing ◽  
Oral Amoxicillin ◽  
First Case ◽  
Causative Agents ◽  
Amoxicillin Clavulanic Acid

Desulfovibriospp. are gram-negative, sulfate-reducing, and anaerobic bacteria found in the digestive tract of humans. BecauseDesulfovibriospp. are infrequent causative agents of infectious diseases and are difficult to isolate and to identify from clinical specimens, the appropriate antibiotic therapy to infection withDesulfovibriospp. has not been determined. We report the first case of liver abscess with bacteremia due toDesulfovibrio desulfuricansto show the clinical presentation and treatment. The patient was successfully treated with intravenous piperacillin-tazobactam and oral amoxicillin-clavulanic acid.

scholarly journals Liver Abscess Caused by Fusobacterium nucleatum: A Case Report

2021 ◽  
Vol 14 (4) ◽  
Author(s):  
Wenhao Wu ◽  
Wenjia Fan ◽  
Zhewen Zhou ◽  
Shouhao Wang ◽  
Chengan Xu ◽  
...  
Keyword(s):  
Liver Abscess ◽  
Pathogenic Bacteria ◽  
Anaerobic Bacteria ◽  
Fusobacterium Nucleatum ◽  
Pyogenic Liver Abscess ◽  
Microbial Detection ◽  
Specimen Collection ◽  
First Case ◽  
Positive Rate ◽  
Bacteria Culture

Introduction: Pyogenic liver abscess (PLA) is a serious infectious disease of the liver. PLA caused by Fusobacterium nucleatum is extremely rare. Here we report the first case of liver abscess caused by F. nucleatum in China. Case Presentation: The case was a 34-year-old female patient admitted to the hospital due to high fever. The diagnosis of liver abscess was confirmed by imaging studies and liver puncture. We finally confirmed the pathogen as F. nucleatum by next-generation sequencing (NGS). After the targeted anti-infective treatment, the patient recovered and discharged. Conclusions: As a new microbial detection method, NGS can still help in clinical practice. In addition, to improve the positive rate of anaerobic bacteria culture, we should pay attention to avoid contact with air in the process of specimen collection when the pathogenic bacteria are suspected to be anaerobic bacteria.

scholarly journals Late Prosthetic Vascular Graft Infections after Reconstructions on Aortoiliac Segment: An Eleven Years Experience

2013 ◽  
Vol 6 (1) ◽  
pp. 43-50
Author(s):  
Lyubomir Ts. Beshev ◽  
Valentina E. Edreva-Besheva ◽  
Mariya P. Sredkova ◽  
Dobromir D. Nguen
Keyword(s):  
Candida Albicans ◽  
Vascular Graft ◽  
Anaerobic Bacteria ◽  
Graft Infection ◽  
Gram Negative Bacteria ◽  
Vascular Graft Infection ◽  
Gram Positive ◽  
Gram Negative ◽  
Clinical Specimens ◽  
Causative Agents

Summary The purpose of the study was to evaluate the frequency and etiology of late prosthetic vascular graft infections after reconstructions on aortoiliac segment. From 2001 to 2011,545 primary reconstructions were performed on 545 consecutive patients. We had 18 cases of late intracavitary graft infections in 14 of them. A total of 58 clinical specimens collected from patients before, during and after reoperation were analyzed. Pathogens were isolated using conventional methods for aerobic and anaerobic bacteria. The isolates were identified down to species level by conventional biochemical methods, VITEK 2 and mini API Systems (bioMereux, France). During an 11-year period after prosthetic grafting of the abdominal aorta and aortoiliac segment the incidence of late (more than 4 months after implantation) infection was 3.11%. The mean interval between the initial operation and development of infection was 39.2 months (range 4 to 84). Positive microbial cultures were found in 46 clinical specimens. A total of 66 microbial isolates were cultured, comprising 27 clinical strains. Gram-positive bacteria were predominant - 15 (55.55%) strains, followed by Gram-negative bacteria - 9 (3 3.33%), Candida albicans - 2 (7.4%) and Bacteroides fragilis - 1 (3.7%). In 7 cases, the infection was monobacterial, caused predominantly by Staphylococcus species. In the rest of the cases, the infections were polymicrobial, caused by association between two microbial species. Mortality rate was 35.71% (5 cases) - in 4 of them the infection was caused by association between two species of Gram-negative bacteria or between Gram-negative bacteria and Candida albicans. The incidence of late intracavitary vascular graft infection was low. The average period for development of this complication was about 3 years after reconstruction. Among the causative agents, Gram-positive microorganisms had a predominant role but infections caused by Gram-negative bacteria, especially when they were in association, had a worse outcome.

scholarly journals Characteristics of Pyogenic Liver Abscess

2021 ◽  
Author(s):  
Nenad Pandak ◽  
Asmaa S. Mahdi ◽  
Ali Al Majrafi ◽  
Mariya Molay ◽  
Stepen S. Deenadayalan ◽  
...  
Keyword(s):  
Klebsiella Pneumoniae ◽  
Liver Abscess ◽  
Clinical Presentation ◽  
Anaerobic Bacteria ◽  
Pyogenic Liver Abscess ◽  
Tertiary Hospital ◽  
Empirical Treatment ◽  
Liver Malignancies ◽  
Intraabdominal Infections

Objectives: Liver abscess can develop as a complication of hepatobiliary disease or other intraabdominal infections, but more recently it is associated with primary and secondary liver malignancies and their treatment. The goal of this study was to analyze the epidemiology, etiology and clinical characteristics of pyogenic liver abscess in Oman. The intention was to obtain the information needed for the adequate liver abscess empirical treatment. Methods: This retrospective study took place in a tertiary hospital. Consecutive patients treated for the liver abscess during the five years period, from January 2013 until the end of 2017, were enrolled. Their demographic and clinical data were used to study the characteristics of pyogenic liver abscess in Oman. Results: Fifty-three patients with pyogenic liver abscess were enrolled in the study. They were predominantly male and younger than 60 years. Klebsiella pneumoniae was the most usual bacteria causing the liver abscess. Clinical presentation was unspecific and the abdominal pain and high fever were the most usual symptoms. Conclusion: The majority of pyogenic liver abscesses are caused by K. pneumoniae so the empirical treatment should be started with antibiotic directed against it. Further studies are needed to establish the local role of anaerobic bacteria in pyogenic liver abscess as well as to monitor the presence of hypervirulent K. pneumoniae in Oman. Keywords: Pyogenic liver abscess; Etiology; Epidemiology; Klebsiella pneumoniae.

Pilot Plant Study on Microaerobic Self-Granulated Sludge Process (Multi-Stage Reversing Flow Bioreactor: MRB)

1991 ◽  
Vol 23 (4-6) ◽  
pp. 973-980 ◽  
Author(s):  
M. Takahashi ◽  
S. Kyosai
Keyword(s):  
Pilot Plant ◽  
High Performance ◽  
Anaerobic Bacteria ◽  
Domestic Wastewater ◽  
Public Works ◽  
Symbiotic Interaction ◽  
Sulfate Reducing ◽  
Pellet Formation ◽  
Multi Stage ◽  
Domestic Wastewater Treatment

A Multi-stage Reversing flow Bioreactor (MRB) was developed by the Public Works Research Institute in 1986. It utilizes the symbiotic interaction between anaerobic bacteria (sulfate reducing bacteria) and microaerobic bacteria (Beggiatoa=filamentous sulfur oxidizing bacteria) for self-granulated pellet formation. A MRB Pilot plant for domestic wastewater treatment (design capacity was 225 m3/day) was constructed in 1988. After several modifications of the initial design, stable pellet formation and high performance were achieved. This paper describes the results of the pilot plant operation.

Physiologic studies with the sulfate-reducing bacterium Desulfovibrio desulfuricans: Evaluation for use in a biofuel cell

1996 ◽  
Vol 18 (5) ◽  
pp. 358-365 ◽  
Author(s):  
Michael J. Cooney ◽  
Edouard Roschi ◽  
Ian W. Marison ◽  
Ch. Comminellis ◽  
Urs von Stockar
Keyword(s):  
Desulfovibrio Desulfuricans ◽  
Biofuel Cell ◽  
Sulfate Reducing

scholarly journals Inflammatory Myofibroblastic Tumor of the Bladder: 2 Rare Cases Managed with Laparoscopic Partial Cystectomy

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Sofia Santos Lopes ◽  
Andrea Furtado ◽  
Rita Oliveira ◽  
Ana Cebola ◽  
Bruno Graça ◽  
...  
Keyword(s):  
Inflammatory Myofibroblastic Tumor ◽  
Clinical Presentation ◽  
Treatment Approach ◽  
Pathological Condition ◽  
Partial Cystectomy ◽  
Pathological Features ◽  
Macroscopic Hematuria ◽  
Voiding Symptoms ◽  
First Case

Two cases of inflammatory myofibroblastic tumor (IMT) of the bladder are reported here. Both patients were male and presented with macroscopic hematuria; in the first case terminal hematuria was associated with irritative voiding symptoms. The second case was a smoker with hematuria unresponsive to medical treatment and anemia. Clinical presentation, pathological features, treatment, and prognosis are discussed. Due to rarity of this pathological condition, there are no guidelines concerning treatment and follow-up. We present our follow-up scheme and highlight the use of laparoscopic partial cystectomy as a successful treatment approach.

Painful, reappearing eruption in a medically complex 4-year-old

2021 ◽  
Vol 14 (2) ◽  
pp. e239310
Author(s):  
Meredith Sooy ◽  
Rachel L Randell ◽  
Dmitry Tchapyjnikov ◽  
Klaus Werner ◽  
Kristina Nazareth-Pidgeon
Keyword(s):  
Skin Biopsy ◽  
Growth Retardation ◽  
Clinical Presentation ◽  
Heart Defects ◽  
Pathogenic Mutation ◽  
Rare Disorder ◽  
Frequent Episodes ◽  
First Case

A 4-year-old boy with atypical, complete DiGeorge and CHARGE (coloboma, heart defects, atresia choanae, growth retardation, genital abnormalities and ear abnormalities) syndromes presented with frequent episodes of a painful, markedly erythematous eruption associated with swelling. Evaluation revealed non-specific findings on skin biopsy at the time of eruption and no pathogenic mutation in the SCN9A gene. The patient was diagnosed with secondary erythromelalgia based on clinical presentation. Erythromelalgia is a rare disorder characterised by recurrent episodes of pain and erythema typically affecting the distal extremities. This case represents the first case of erythromelalgia in the setting of DiGeorge and CHARGE syndromes.

Experimental Investigation on the Active Range of Sulfate-Reducing Bacteria for Geological Disposal

1994 ◽  
Vol 353 ◽  
Author(s):  
S. Fukunaga ◽  
H. Yoshikawa ◽  
K. Fujiki ◽  
H. Asano
Keyword(s):  
Experimental Investigation ◽  
Environmental Conditions ◽  
Desulfovibrio Desulfuricans ◽  
Sulfate Reducing Bacteria ◽  
Geological Disposal ◽  
Sulfate Reducing ◽  
Buffer Material ◽  
Ph Range ◽  
High Level ◽  
Reducing Bacteria

AbstractThe active range ofDesulfovibrio desulfuricans. a species of sulfate-reducing bacteria, was examined in terms of pH and Eh using a fermenter at controlled pH and Eh. Such research is important because sulfate-reducing bacteria (SRB) are thought to exist underground at depths equal to those of supposed repositories for high-level radioactive wastes and to be capable of inducing corrosion of the metals used in containment vessels.SRB activity was estimated at 35°C, with lactate as an electron donor, at a pH range from 7 to 11 and Eh range from 0 to -380 mV. Activity increased as pH approached neutral and Eh declined. The upper pH limit for activity was between 9.9 and 10.3, at Eh of -360 to -384 mV. The upper Eh limit for activity was between -68 and -3 mV, at pH 7.1. These results show that SRB can be made active at higher pH by decreasing Eh, and that the higher pH levels of 8 to 10 produced by use of the buffer material bentonite does not suppress SRB completely.A chart was obtained showing the active range ofDesulfovibrio desulfuricansin terms of pH and Eh. Such charts can be used to estimate the viability of SRB and other microorganisms when the environmental conditions of a repository are specified.

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