Shewanella algae in a chronic suppurative otitis media patient with cholesteatoma

İgnak, Seyda; Demirel, Ozlem Unay; Soydan, Sevda; Esen, Erkan

doi:10.5582/ddt.2018.01014

Cited by 4 publications

(5 citation statements)

References 15 publications

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“…Our patient denied having attended aquatic sites or ingestion of raw seafood [6]. This finding is in line with current evidence that shows that a number of patients with infection by S. algae have not recently been exposed to marine environments or products.…”

Section: Discussionsupporting

confidence: 92%

“…For S. algae , direct contact with seawater or ingestion of contaminated seafood are established risk factors for infections [6].…”

Section: Introductionmentioning

confidence: 99%

“…Shewanella skin and soft tissue infections are more usually seen in immunocompromised patients with a preexisting cutaneous ulcer and are most commonly associated with exposure to marine environments [5]. For S. algae, direct contact with seawater or ingestion of contaminated seafood are established risk factors for infections [6]. amoxicillin/clavulanate and topical ofloxacin for 10 days to treat right acute otitis media, without any improvement.…”

Section: Introductionmentioning

confidence: 99%

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Actinomyces and Shewanella algae complicated paediatric mastoiditis: a case report of a multidisciplinary approach

Sousa

Hafe

Reis-Melo

et al. 2022

Access Microbiology

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Cerebral venous sinus thrombosis in children is a rare complication of acute mastoiditis that can potentially be fatal. Clinical expertise is essential for early diagnosis and management due to its subtle course. We present the first known case of paediatric acute mastoiditis with venous sinus thrombosis caused by Shewanella algae and Actinomyces europaeus . A 17-year-old male presented clinical signs of right acute otitis media and mastoiditis. Brain computed tomography showed mastoid opacification, cerebral sinus thrombosis and an extradural collection. Microbiology revealed the presence of S. algae and A. europaeus . A multidisciplinary approach combining medical and surgical treatment allowed the patient to make a full recovery.

show abstract

Section: Discussionsupporting

confidence: 92%

“…For S. algae , direct contact with seawater or ingestion of contaminated seafood are established risk factors for infections [6].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Actinomyces and Shewanella algae complicated paediatric mastoiditis: a case report of a multidisciplinary approach

Sousa

Hafe

Reis-Melo

et al. 2022

Access Microbiology

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show abstract

“…Shewanella spp. have been reported to cause otitis media [ 3 ], ocular infections [ 4 ], skin and soft tissue infections [ 5 ], and bacteremia. Patients with such infections are considered to have a good prognosis [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

A Rare Cause of Empyema and Bacteremia Due to Shewanella Species in Alcoholic Cirrhosis Patients: A Case Report and Comprehensive Review of Literature

Qian,

Ishikawa,

Nakamura

et al. 2024

Am J Case Rep

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Patient: Male, 78-year-old Final Diagnosis: Bacteremia due to Shewanella species • empyema due to Shewanella species Symptoms: Dyspnea • high fever Clinical Procedure: — Specialty: Infectious Diseases Objective: Unusual clinical course Background: Shewanella spp. are gram-negative facultative anaerobic, oxidase-positive, motile bacilli that are ubiquitous but commonly occur in seawater and can cause opportunistic infection. Reports on the risk factors for Shewanella infection, its severity, antibiotic susceptibility, and prognosis are limited. This report is of a 78-year-old man with alcoholic cirrhosis presenting with bacteremia and empyema due to infection with Shewanella spp. Case Report: A 78-year-old man with alcoholic cirrhosis (Child-Pugh B) presented to our emergency room with a high fever. He had eaten raw fish one week prior to admission. Chest computed tomography showed a right unilateral pleural effusion, and he was hospitalized with suspected empyema. Shewanella spp. was detected in the pleural effusion and blood cultures. We initiated piperacillin/tazobactam and vancomycin empirically and switched to ceftriaxone; the effusion was successfully treated using antibiotics and pleural drainage. However, on hospitalization day 53, the patient died of aspiration pneumonia. In our literature review, we extracted 125 reported cases (including our case) and found that men were disproportionately affected (81%); median age was 61.6 (56-75) years; underlying diseases included hepatobiliary disease (33%), malignancy (25%), and cardiac disease (24%); Shewanella spp. infection sites were skin and soft tissue (35%), respiratory system (18%), and hepatobiliary system (11%); and management included antibiotics (100%), drainage (16%), and debridement (16%). The survival rate was 74% with antibiotics alone. Conclusions: Our case highlights that clinicians should recognize Shewanella spp. as a cause of empyema and bacteremia in patients with liver cirrhosis, and that microbiological diagnosis with antibiotic sensitivity testing and treatment should be undertaken urgently to prevent fatal sepsis.

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“…One member, S. algae, is increasingly recognized as a human pathogen that can cause serious infections (Janda 2014). For example, infections of skin and soft tissue (Charles et al 2015), blood (Bridwell et al 2019), ear (Ignak et al 2018), and the peritoneum (Shanmuganathan Communicated by Erko stackebrandt.…”

Section: Introductionmentioning

confidence: 99%

Searching for putative virulence factors in the genomes of Shewanella indica and Shewanella algae

Tamez

McLaughlin

et al. 2020

Arch Microbiol

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Bacterial pathogens are a major threat to both humans and animals worldwide. It is crucial to understand the mechanisms of various disease processes at the molecular level. Shewanella species are widespread in the environment and some are considered as emerging opportunistic human and marine mammal pathogens. In this study, putative virulence factors on the genome of Shewanella indica BW, a bacterium isolated from the Bryde's whale (Balaenoptera edeni), were determined. Additionally, for comparative purposes, putative virulence factors from two other S. indica and ten S. algae strains were also determined using the Pathosystems Resource Integration Center (PATRIC) pipeline. We confirmed the presence of previously reported virulence factors and we are proposing several new candidate virulence factors. Interestingly, the putative virulence factors were very similar between the two species with the exception of microbial collagenase which was present in all S. algae genomes, but absent in all S. indica genomes.

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Shewanella algae in a chronic suppurative otitis media patient with cholesteatoma

Cited by 4 publications

References 15 publications

Actinomyces and Shewanella algae complicated paediatric mastoiditis: a case report of a multidisciplinary approach

Actinomyces and Shewanella algae complicated paediatric mastoiditis: a case report of a multidisciplinary approach

A Rare Cause of Empyema and Bacteremia Due to Shewanella Species in Alcoholic Cirrhosis Patients: A Case Report and Comprehensive Review of Literature

Searching for putative virulence factors in the genomes of Shewanella indica and Shewanella algae

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