Cases reported "Serratia Infections"

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1/45. serratia marcescens pseudobacteraemia in neonates associated with a contaminated blood glucose/lactate analyzer confirmed by molecular typing.

    Three episodes of serratia marcescens pseudobacteraemia occurred on a neonatal intensive care unit. Following the first two cases, one full term and one pre-term infant, the source was identified as a glucose/lactate analyzer. Blood culture and environmental isolates of the organisms involved were indistinguishable when subjected to pulsed-field gel electrophoresis of Spe 1 digests and PCR ribotyping. Failure to recognize pseudobacteraemia in neonates results in inappropriate therapy for the individual and increased antibiotic pressures on the unit. attention to the possibility of cross infection when using automated analyzers is required to minimize the risks of true or pseudoinfection to patients.
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keywords = infection
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2/45. Leech-borne serratia marcescens infection following complex hand injury.

    leeches are commonly used in the postoperative course of plastic surgical operations where there is venous congestion in a pedicled or free flap. They provide a temporary relief to venous engorgement whilst venous drainage is re-established. It is known that leeches can carry aeromonas hydrophila infection, and a second or third generation cephalosporin antibiotic has traditionally been given as prophylaxis against infection. We report a new observation that leeches can carry serratia marcescens and give rise to clinically significant infection. The implication for prophylaxis and treatment of leech-associated cellulitis is discussed.
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ranking = 3.5
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3/45. Painful red nodules of the legs: a manifestation of chronic infection with gram-negative organisms.

    skin infection secondary to gram-negative organisms is uncommon and is typically limited to persons who are immunocompromised. When these do occur, they are acute, progressive, and severe. Here we report 2 cases of painful red nodules that presented with a waxing and waning course over a long period. One case is that of a 45-year-old healthy white man who developed serratia marcescens infection in 1 leg. The other case is that of a 78-year-old man with chronic lymphocytic leukemia treated with prednisone who developed infection of the leg secondary to pseudomonas aeruginosa. In the first case, symptoms were present for 2 years before definitive diagnosis and treatment. In the second case, 4 months elapsed. Ultimately, both patients responded to antibiotic therapy and recovered. These cases illustrate an unusual presentation of chronic red painful nodules of the leg secondary to infection with gram-negative organisms and underscore the importance of culture even when infection seems unlikely.
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ranking = 4.5
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4/45. Necrotizing fasciitis caused by serratia marcescens in two patients receiving corticosteroid therapy.

    Necrotizing fasciitis (NF), a devastating soft tissue infection, is rarely attributed to serratia marcescens. We here report two patients with S. marcescens NF, both of whom had underlying renal disease and had been receiving corticosteroid therapy. The first patient, a 40-year-old man with systemic lupus erythematosus and uremia on prednisolone therapy, developed fulminant cellulitis and septic shock 1 month after a skin biopsy for cutaneous vasculitis of the left foot. The cellulitis evolved to NF, and blood and necrotic tissue cultures both grew S. marcescens. The patient completely recovered after debridement and ceftazidime therapy. The second patient, a 73-year-old man receiving prednisolone therapy for nephrotic syndrome, developed right leg cellulitis that evolved to NF. Blood and necrotic tissue cultures both grew S. marcescens. After aggressive debridement and ciprofloaxcin therapy, the NF improved. However, the patient died of aspiration pneumonia and massive gastrointestinal bleeding 1 month later. These findings illustrate that S. marcescens should be considered as a potential pathogen causing NF in susceptible hosts.
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5/45. Neutrophilic eccrine hidradenitis secondary to infection with serratia marcescens.

    Neutrophilic eccrine hidradenitis (NEH) is a rare dermatosis which usually develops after administration of chemotherapeutic treatments. An infective origin is exceptional. We report a patient, previously operated on for ependymoma, who presented with an eruption typical of NEH even though he had not received chemotherapy. culture of a skin biopsy revealed serratia marcescens. The dermatosis improved after antibiotic therapy but recurred twice and culture again isolated S. marcescens; electron microscopy revealed cytoplasmic inclusions within neutrophils, suggestive of bacteria. The disease improved every time with appropriate antibiotic therapy. An infective aetiology for NEH is rare: three such cases have been reported, of which one was due to S. marcescens. The originality of our case is the recurrence of the disease on three occasions with the same bacterium isolated on each occasion, with disease remission after antibiotic therapy. This case confirms that infections may be a possible cause of NEH and underlines the necessity to search for infective agents, especially in patients immunocompromised by haematopoietic malignancies and/or chemotherapeutic treatments.
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ranking = 2.5
keywords = infection
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6/45. osteomyelitis of the ribs in the antibiotic era.

    A total of 106 cases of rib osteomyelitis were reviewed, including 2 cases described in detail. Mycobacterial and bacterial infections accounted for 47 cases each. Fungal rib osteomyelitis occurred in 11 cases and 1 case was caused by entamoeba histolytica. Most cases occurred in children and young adults. The mean duration of symptoms before diagnosis was 16, 26 and 32 weeks for bacterial, mycobacterial and fungal rib osteomyelitis, respectively. Common clinical signs were fever (73%), soft tissue mass (64%) and chest pain (60%). Route of infection was defined in 85 cases: 62% from contiguous spread and 38% via haematogenous route of infection. Eighty-nine percent had a favourable outcome after antimicrobial therapy with or without surgery. In conclusion, rib osteomyelitis is a rare infection of various aetiologies. The majority of cases occur in children and young adults and its diagnosis is usually delayed for several weeks.
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7/45. Chronic aortic dissection (DeBakey type II) with infective thrombus in the false channel.

    A 68-year-old man with a DeBakey type II chronic aortic dissection developed bacteremia secondary to a urinary tract infection with the Serratia species. This resulted in an infected thrombus in the false channel and a subsequent rupture of the ascending aorta. An emergency resection of the ascending aorta and a Dacron graft interposition were performed. The patient suffered from severe neurological insufficiency and died of pneumonia 6 months postoperatively. The optimal operation time and surgical options of an infected aortic dissection should be determined.
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8/45. Cutaneous infection caused by serratia marcescens.

    An 86-year-old woman presented with a chronic granulomatous skin lesion on the dorsal aspect of her left hand. Histologic examination showed pseudoepitheliomatous hyperplasia and a dense dermal infiltrate largely composed of lymphocytes and histiocytes. abscess formation and fibroblastic proliferation were also present. Use of Fite, Giemsa, and periodic acid-Schiff stains did not show specific organisms. The gram-negative bacillus serratia marcescens was the only microorganism isolated from all cultures performed. trimethoprim-sulfamethoxazole, 960 mg every 12 hours for 20 days (orally), was given and resulted in complete disappearance of the lesion and negative culture findings. Cutaneous infection by S marcescens may represent a distinctive entity, whose clinical and possible pathogenic features are presented here.
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ranking = 2.5
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9/45. Prostatic abscess in the newborn: an unrecognized source of urosepsis.

    We present a 10-day-old boy who developed fulminant urosepsis. At autopsy, he was found to have a prostatic abscess as his sole source of infection. We reviewed the 12 previous reported cases of prostatic abscess in newborns and present factors that may suggest the diagnosis. The treatment and outcome in each of the cases are also presented.
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10/45. endotoxemia causing fetal bradycardia during urosepsis.

    BACKGROUND: Fetal bradycardia is a recognized response to maternal hypothermia associated with hypoglycemia, tocolysis with magnesium sulfate, or urosepsis, and it is thought to be a direct response to the decrease in the maternal core temperature. CASE: A 25-year-old white woman, gravida 1, para 0, at 31 1/7 weeks' gestation was admitted with a diagnosis of pyelonephritis. The baseline fetal heart rate was 120 beats per minute with accelerations. Within 3 hours of admission, the patient became hypothermic (35.1C) and, concomitantly, the fetal heart rate baseline declined to 90 beats per minute with marked variability. Despite sustained maternal hypothermia, the fetal heart rate baseline rose to 120 beats per minute. It was another 6 hours before the patient's temperature rose above 38.5C. Her urine and blood cultures were positive for Serratia rubidacea infection. The patient delivered a healthy infant at 39 weeks' gestation. CONCLUSION: Fetal bradycardia in the presence of urosepsis might be due to the release of endotoxin from gram-negative bacteria, triggering production of cardiotoxic cytokines, rather than to maternal hypothermia alone.
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