URINARY TRACT INFECTION. Dr Kulwant Singh. Principal: S H Medical College Jamshedpur. URINARY TRACT INFECTION . Second most common infection following respiratory infections
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Dr Kulwant Singh
Principal: S H Medical College
Normal flora found in the urethra consist of lactobacillus and staphylococcus to name a few
URINARY TRACT INFECTION
Approximately 50% of women develop a UTI during their lives and there is a prevalence rate of 5% per year of asymptomatic or covert bacteriuria in non-pregnant women between ages 21 and 65
URINARY TRACT INFECTION
LOWER TRACT INFECTION
UPPER TRACT INFECTION
PERI NEPHRIC ABSCESS
1. Bacterial infections of urinary tract are a very common reason to seek health services
2. Common in young females and uncommon in males under age 50
3. Common causative organisms
BACTERIA GET ACCESS FROM URETHRA AND ASCENDS
The normal bladder is capable of clearing itself of organisms within 2 to 3 days of their introduction.
(1)the elimination of bacteria by voiding
(2) the antibacterial properties of urine and its constituents
(3) the intrinsic mucosal bladder defense mechanisms
(4) an acid vaginal environment (female)
(5) prostatic secretions (male)
Two potential routes:
(1) the hematogenous route, with seeding of the kidney during the course of bacteremia
(2) the ascending route, from the urethra to the bladder, then from the bladder to the kidneys via the ureters.
Because the kidneys receive 20% to 25% of the cardiac output, any microorganism that reaches the bloodstream can be delivered to the kidneys.
The major causes of hematogenous infection are S. aureus, Salmonella species, P. aeruginosa, and Candida species.
Chronic infections (skin, respiratory tract)
blood circulation kidney (cortex)
small abscess renal tubular
renal pelvis renal papillary
The ability of host defense
Urinary tract mucosal cells damaged
The power of bacterial adhesions(toxicity)
organisms urethra,periurethral tissues
bladder ureters renal pelvis
Voiding dysfunction is characterized by some or all of the following:
dribbling of urine
secondary to a UTI or to local irritants such as pinworm infestation
HISTORY AND PHYSICAL EXAMINATION
Age-related Risk Factors for UTI
that are reinfection.
Classification of U.T.I.
Recurrent infections resulting
from bacterial persistence.