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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]
The major functions of these lining cells are the reabsorption of water and small molecules from the filtrate into the blood, and the secretion of wastes from the blood into the urine. [citation needed] Proper function of the kidney requires that it receives and adequately filters blood.
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.
Most affected individuals present with recurrent fevers and urosepsis, anemia, and a painful kidney mass. Other common manifestations include kidney stones and loss of function of the affected kidney. Bacterial cultures of kidney tissue are almost always positive. [25]
P fimbriae (also known as pyelonephritis-associated pili, P pili, or Pap) are chaperone-usher type (specifically of the π family) [1] fimbrial appendages found on the surface of many Escherichia coli bacteria. [2]
Cellular factors include reduced number and function of bone-marrow derived endothelial progenitor cells. [25] and reduced ability of those cells to form blood vessels. [26] Formation of additional capillaries and larger blood vessels (angiogenesis) is a major mechanism by which a cancer may help to enhance its own growth.
Treatment, depending on cause, may require prompt drainage of the bladder via catheterization, medical instrumentation, surgery (e.g., endoscopy, lithotripsy), hormonal therapy, or a combination of these modalities.