The Elderly the Symptoms of Chronic Pyelonephritis

Of elderly chronic pyelonephritis clinical manifestation is not typical, often complicated, the person that weigh when acute onset, can show the similar to acute pyelonephritis syndrome, can have obvious symptoms of systemic infection is one of the more common symptoms are the body unwell, weight loss, low thermal, urinary incontinence, dysuria, urinary retention, polyuria, nocturia, etc., a few patients characterized by low back pain, abdominal dull pain or renal colic, light person can be asymptomatic, only change the urine, individual patients with high blood pressure, urinary flow obstruction, indwelling catheter or neurogenic bladder in patients with chronic bacteriuria should be suspected of chronic pyelonephritis.

The elderly pyelonephritis often exist factors of urinary retention, easy cause urinary tract sepsis, should add alert, urinary tract sepsis complicated with shock, high case fatality.

Chronic pyelonephritis is relatively concentrated early renal dysfunction and GFR relatively well-preserved, due to the bacteria in the medulla at the beginning, caused widespread inflammation, eventually appear scar, renal tubular structure distortion, which interfere with the medulla transfer mechanism, these changes can cause polyuria, nocturia, perforation, kidney diabetes insipidus and electrolyte lesions involving cortex, have extensive scarring lead to renal failure.

Easy recurrence, the clinical characteristics of acute pyelonephritis, another attack can be the original disease recurrence or infection, the two different nature, and the treatment and prognosis of each different, must distinguish, recurrence is pyelonephritis not cured, only temporary relief, under the certain factors contributed to latent bacteria cause inflammation and infection;Infection is the original disease has again, bacteria have been destroyed, caused by the new pathogenic bacteria invasion.


Urine bacterial culture results conform to the true bacteria or pyelonephritis course of more than half a year, accompanied by one of the following conditions can be diagnosed as chronic pyelonephritis: imaging examination showed renal pelvis, calyces deformation narrowed;Two kidney size, renal surface uneven;Renal tubular function have sustained damage.