Acute pyelonephritis in pregnancy

Acute pyelonephritis is one of the most common and serious medical complications during pregnancy. The incidence is 1% to 2%. Pyelonephritis mostly occurs in late pregnancy or puerperium. Half of them are unilateral, especially the right side, and bilateral 1/4 Mostly caused by retrograde infection of the lower urinary tract. Unlike bacteriuria and cystitis, the risk of acute pyelonephritis during pregnancy is significantly increased. Due to the relative obstruction of the urinary tract during pregnancy, delayed urine emptying and bacteriuria; secondly, pregnant women's urine contains nutrients, glucosuria and amino acid urine are conducive to the reproduction of bacteria. The incidence of acute pyelonephritis during pregnancy has several tendencies and is the same as that of asymptomatic bacteriuria. The adhesion of bacteria has played a major role in the occurrence of acute pyelonephritis during pregnancy. Although the exact mechanism is not clear, Stenguist et al. Reported that compared with asymptomatic bacteriuria in pregnant women with acute pyelonephritis during pregnancy, acute pyelonephritis bacterial culture, P pili escherichia coli strains dominated.

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