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Gram-negative bacteremia occurs more frequently in elderly populations (65 years or older) and is associated with higher morbidity and mortality in this population. [23] E.coli is the most common cause of community-acquired bacteremia accounting for approximately 75% of cases. [24] E.coli bacteremia is usually the result of a urinary tract ...
Septic shock is a result of a systemic response to infection or multiple infectious causes. The precipitating infections that may lead to septic shock if severe enough include but are not limited to appendicitis, pneumonia, bacteremia, diverticulitis, pyelonephritis, meningitis, pancreatitis, necrotizing fasciitis, MRSA and mesenteric ischemia.
Adults, especially the elderly, may show a more complicated presentation. [2] [6] Complications may include neurological problems and heart failure. [1] Most cases occur after infectious diarrhea due to a specific type of E. coli called O157:H7. [2] Other causes include S. pneumoniae, Shigella, Salmonella, and certain medications.
In microanatomy, fenestrae are found in endothelium of fenestrated capillaries, enabling the rapid exchange of molecules between the blood and surrounding tissue. [4] The elastic layer of the tunica intima is a fenestrated membrane. In surgery, a fenestration is a new opening made in a part of the body to enable drainage or access.
Severe sepsis causes poor organ function or blood flow. [9] The presence of low blood pressure, high blood lactate, or low urine output may suggest poor blood flow. [9] Septic shock is low blood pressure due to sepsis that does not improve after fluid replacement. [9] Sepsis is caused by many organisms including bacteria, viruses, and fungi. [10]
Necrotizing pneumonia (NP), also known as cavitary pneumonia or cavitatory necrosis, is a rare but severe complication of lung parenchymal infection. [ 1 ] [ 2 ] [ 3 ] In necrotizing pneumonia, there is a substantial liquefaction following death of the lung tissue, which may lead to gangrene formation in the lung.
The final report of the U.K.'s infected blood inquiry was published on Monday, nearly six years after it began looking into how tens of thousands of people contracted HIV or hepatitis from ...
The most at-risk populations for RSV complications are older adults and those with underlying medical conditions or immunocompromised individuals. [27] Between 60,000-160,000 older adults in the United States are hospitalized annually with RSV. Between 6,000 and 10,000 older adults die from RSV infection each year. [28]