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Bacterial Myositis

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Presentation

  • A rationalisation of the 1350 boxes used throughout the book gives a simpler and clearer presentation of the various categories.[books.google.com]
  • Muscle edema, characterized by high T2 signal is typically present. Abscesses appear, as elsewhere, as fluid collection (high T2, low T1) with peripheral contrast enhancement. There may also be diffuse muscle enlargement.[radiopaedia.org]
  • Aeromonas hydrophila is present in wound drainage and surgical excised tissue and is frequently present in blood cultures obtained on presentation.[oncologynurseadvisor.com]
  • Bacterial myositis presents as focal muscle infection, whereas viruses and parasites tend to cause diffuse disease with generalized myalgias and multifocal myositis.[atmph.org]
  • Septic shock and poor local findings initially presented during breast cancer chemotherapy. Case Presentation The case was an 80-year-old Japanese woman presenting with right shoulder pain.[karger.com]
Pathologist
  • Kradin is also an Associate Pathologist at Massachusetts General Hospital in the Immunopathology Unit. His techniques include tissue culture and immunocytochemistry, flow cytometry, Northern blotting and immunocytochemistry. Dr.[books.google.com]
Soft Tissue Swelling
  • Plain films may reveal focal soft tissue swelling, the presence of soft tissue gas at the painful site, and possible relevant associated skeletal abnormalities, such as osteomyelitis or a primary bone tumor.[oncologynurseadvisor.com]
Purulent Sputum
  • As a similar example, only 8% of pneumonia patients produce purulent sputum in a neutropenic state under 0.1 10 9 /L [ 5 ].[karger.com]
Right Shoulder Pain
  • Case Report: An 80-year-old woman presented with chronic right shoulder pain during chemotherapy for the recurrent disease.[karger.com]
Frozen Shoulder
  • Five months prior to admission, she had fallen, hit her right shoulder, and had repeatedly been injected to the joint with hyaluronic acid as a treatment of frozen shoulder.[karger.com]
Agalactia
  • Upon a blood culture, Streptococcus agalactiae was identified, confirming Group B streptococcal myositis, and in Figure 5, an MRI of the rectus muscle can be seen. Figure 5.[microbewiki.kenyon.edu]

Workup

  • The inherited disorders are rare and should be considered only if the inpatient workup does not reveal an obvious cause or if the pattern of illness is highly suggestive of an inherited disorder.[clinicaladvisor.com]
  • ., the positive predictive value of typical viral symptoms (as demonstrated in all of our cases) during an influenza epidemic is about 80%. [27] Muscle biopsy is not routinely recommended in the workup of viral myositis as a negative muscle biopsy does[ruralneuropractice.com]
Right Pleural Effusion
  • The chemotherapy was so effective that her right pleural effusion decreased in size. She was admitted to our hospital because the chronic right shoulder pain worsened suddenly.[karger.com]
C-Reactive Protein Increased
  • C-reactive protein increased significantly to 19.9 mg/dL (reference range: 0.0–0.5). Creatine kinase was slightly increased to 234 IU/L (reference range: 40–170). Hemoglobin concentration and hemoglobin A1c were 8.2 g/dL and 8.2%, respectively.[karger.com]
Gram-Positive Rods
  • Gram stain of bullae fluid: gram positive rods Tissue biopsy may be necesary to confirm the diagnosis Investigations to consider: Blood tests: ABG: metabolic acidosis FBC: anemia, hemolysis, thrombocytopenia Basic metabolic panel: hyperkalemia.[learningneurology.com]
Atrioventricular Junctional Rhythm
  • Electrocardiography showed atrioventricular junction rhythm, so we inserted a temporary pacemaker. On admission she had no fever. Her right upper arm was not hot or fluctuant without erythema.[karger.com]

Treatment

  • In polymicrobial infections, the treatment becomes even more difficult as different microorganisms have such diverse structures that need specific treatment.[microbewiki.kenyon.edu]
  • Some of the familiar, of many, infections which have been connected with causing Myositis are: Staphylococcus aureus (MRSA) Spirochete (Lyme disease) Treatment Treatment of Infectious, Viral, Bacterial, and Fungal Myositis is often dependent upon the[understandingmyositis.org]
  • In this context, the current authors’ choice of treatment using antibiotics without drainage was justifiable. Infection and sciatic nerve symptoms were attenuated by antibiotic treatment alone.[healio.com]
  • Corticosteroid treatment was considered for probable polymyositis but was deferred pending observation for spontaneous resolution of possible viral myositis.Adequate hydration remained the mainstay of treatment.[atmph.org]
  • Treatment of Infectious Myositis Exact treatment would depend on the diagnosis. Rest and medication are mainstays of the treatment. The drugs given in a particular case would depend on the diagnosis and causative agents.[boneandspine.com]

Prognosis

  • Treatment and prognosis Depending on the infective agent systemic antibiotics are administered. If an abscess has formed, then it should usually be drained either surgically or percutaneously.[radiopaedia.org]
  • In most cases, the prognosis following satisfactory drainage is excellent, with little long-term morbidity.[oncologynurseadvisor.com]
  • If a person with dermatomyositis develops cancer, the prognosis may be worse. Medications taken to treat these muscle diseases may cause complications that affect prognosis.[drugs.com]
  • Concurrent neutropenia, regardless of cause, predisposes to C. septicum bacteremia, which results in a poor prognosis; the prognosis is worse if intravascular hemolysis occurs.[merckmanuals.com]
  • Our other aims were to study the prognosis in the form of disability at 1 and 3 months and what baseline factors correlated with baseline severity and good prognosis at 1 and 3 months.[annalsofian.org]

Etiology

  • Etiology: • Direct or indirect trauma • Intramuscular injections of infected or necrotizing materials • Part of syndrome in specific diseases including blackleg, foot-and-mouth disease,ephemeral fever • The exact cause of EM is unknown • May be Sarcocystis[veterpedia.net]
  • Table 3 Hospital course and outcome of children with pyomyositis and myositis caused by all etiologies. Table 3 Hospital course and outcome of children with pyomyositis and myositis caused by all etiologies.[academic.oup.com]
  • The etiology includes autoimmune conditions, genetic disorders, medications, electrolyte imbalances, endocrine disorders, and infections.[atmph.org]
  • Broad spectrum antibiotic therapy is appropriate until initial Gram stain and culture data define the etiologic agent or agents and enable more targeted antibiotic therapy.[oncologynurseadvisor.com]
  • The spectrum of acute myopathy includes various etiologies with different pathophysiology.[annalsofian.org]

Epidemiology

  • It also addresses the importance of preventing and controlling infectious disease outbreaks with coverage of epidemiology, biosecurity, antimicrobial therapy, and recognizing foreign equine diseases.[books.google.com]
  • Myositis in Cattle Definition and Epidemiology: An inflammatory condition grossly characterized by focal, green, muscular lesions in clinically healthy cattle. The most affected tissues are striated skeletal muscle, esophagus and heart.[veterpedia.net]
  • Theodorou DJ, Theodorou SJ, Kakitsubata Y, Sartoris D, Resnick D (2001) Imaging characteristics and epidemiologic features of atypical mycobacterial infections involving the musculoskeletal system.[link.springer.com]
  • Endomysium - histological slide Epidemiology The condition affects people with African or Caribbean ancestry at almost double the rate that it affects Caucasians.[kenhub.com]
  • Epidemiology. The frequency of cases increased from 5 cases in 2000 to 10 cases in 2005 ( P .07) ( figure 1 ).[academic.oup.com]
Sex distribution
Age distribution

Pathophysiology

  • Pathophysiology On muscle biopsy, the muscle cells show small rimmed vacuoles, and no evidence of inflammation. This separates it from the inflammatory myopathies such as polymyositis and dermatomyositis.[kenhub.com]
  • Back to Top Pathophysiology Disruption of the structural integrity and metabolic processes of muscle cells can result from genetic abnormalities, toxins, inflammation, infection, and hormonal and electrolyte imbalances.[clevelandclinicmeded.com]
  • The spectrum of acute myopathy includes various etiologies with different pathophysiology.[annalsofian.org]

Prevention

  • Ideal for both practitioners and students, this comprehensive resource covers the diagnosis, treatment, and prevention of infectious disease in horses.[books.google.com]
  • . • Prevention and Control is by: o Vaccination of animals with multivalent clostridial vaccine in areas known to have outbreaks of clostridial diseases. o Preventing the occurrence of sarcocystosis in cattle may also help.[veterpedia.net]
  • Courtesy of Centers for Disease Control and Prevention. American trypanosomiasis: The causative organism is a protozoan, Trypanosoma cruzi.[emedicine.medscape.com]
  • Prevention of Myositis Prevent trichinosis and cysticercosis by adequately processing pork. Protection from insects by using repellents, insect killers or bed nets. References O’Neill DS, Baquis G, Moral L. Infectious myositis.[boneandspine.com]
  • Infectious myositis can result from surgeries in which incisions allow microbes in, wounds that are contaminated, injectable drug needles that are unsterilized, undercooked foods, among other reasons, making it difficult to detect and prevent at first[microbewiki.kenyon.edu]

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